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UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM 10-K

x                              ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2006

OR

o                                 TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from          to          

(Mark One)

ý

ANNUAL REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the fiscal year ended December 31, 2007

OR

o

TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934

For the transition period from                                    to                                     

Commission file number 1-8993

WHITE MOUNTAINS INSURANCE GROUP, LTD.

(Exact name of Registrant as specified in its charter)

Bermuda

94-2708455


(State or other jurisdiction of
incorporation or organization)

94-2708455
(I.R.S. Employer
Identification No.)


80 South Main Street,

Hanover, New Hampshire

03755-2053


(Address of principal executive offices)



03755-2053
(Zip Code)


Registrant's telephone number, including area code:
(603) 640-2200

Securities registered pursuant to Section 12(b) of the Act:

Registrant’s telephone number, including area code: (603) 640-2200

Securities registered pursuant to Section 12(b) of the Act:

Title of each class


Name of each exchange on which registered


Common Shares, par value $1.00


per share

New York Stock Exchange

per share


Bermuda Stock Exchange

Securities registered pursuant to Section 12(g) of the Act:


None

Indicate by check mark if the Registrant is a well-known seasoned issuer, as defined in Rule 405 of the Securities Act. Yes xý    No o

Indicate by check mark if the Registrant is not required to file reports pursuant to Section 13 or Section 15(d) of the Exchange Act. Yes o    No xý

Indicate by check mark whether the Registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Exchange Act during the preceding 12 months (or for such shorter period that the Registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days. Yes ýx    No o

Indicate by check mark if disclosure of delinquent filers pursuant to Item 405 of Regulation S-K is not contained herein, and will not be contained, to the best of the Registrant’sRegistrant's knowledge, in definitive proxy or information statements incorporated by reference in Part III of this Form 10-K or any amendment to this Form 10-K. ýo

Indicate by check mark whether the Registrantregistrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a non-accelerated filer.smaller reporting company. See definitiondefinitions of “accelerated"large accelerated filer," "accelerated filer," and large accelerated filer”"smaller reporting company" in Rule 12b-2 of the Exchange Act. (Check one):

Large accelerated filer xý

Accelerated filer o

Non-accelerated filer o


(Do not check if a smaller reporting company)
Smaller reporting company o

Indicate by check mark whether the Registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act). Yes o    No xý

The aggregate market value of voting shares (based on the closing price of those shares listed on the New York Stock Exchange and the consideration received for those shares not listed on a national or regional exchange) held by non-affiliates of the Registrant as of June 30, 2006,2007, was $3,025,848,367.$6,022,012,862.

As of February 28, 2007, 10,833,7882008, 10,547,334 common shares, par value of $1.00 per share, were outstanding.

DOCUMENTS INCORPORATED BY REFERENCE

Portions of the Registrant’sRegistrant's Definitive Proxy Statement to be filed with the Securities and Exchange Commission (“SEC”("SEC") pursuant to Regulation 14A under the Securities Exchange Act of 1934, as amended (the “Exchange Act”"Exchange Act"), relating to the Registrant’sRegistrant's Annual General Meeting of Members scheduled to be held May 24, 200729, 2008 are incorporated by reference into Part III of this Form 10-K. With the exception of the portions of the Proxy Statement specifically incorporated herein by reference, the Proxy Statement is not deemed to be filed as part of this Form 10-K.






TABLE OF CONTENTS

PART I


ITEM 1.



Business



2

General

2

OneBeacon

3

White Mountains Re

16

14

Esurance

23

24

Other Operations

27

Investments

28

29

Regulation

30

31

Ratings

32

35

Employees

33

36

Available Information

33

36

ITEM 1A.

Risk Factors

34

36

ITEM 1B.

Unresolved Staff Comments

39

42

ITEM 2.

Properties

39

42

ITEM 3.

Legal Proceedings

40

43

ITEM 4.

Submission of Matters to a Vote of Security Holders

40

43


Executive Officers of the Registrant and its Subsidiaries

41



44


PART II


PART II

ITEM 5.



Market for the CompanysCompany's Common Equity, Related Shareholder Matters and Issuer PurchasePurchases of Equity Securities

42



45

ITEM 6.

Selected Financial Data

43

46

ITEM 7.

ManagementsManagement's Discussion and Analysis of Financial Condition and Results of Operations

44

47

Non-GAAP Financial Measures

59

64

Liquidity and Capital Resources

59

65

Transactions With Related Persons

67

74

Critical Accounting Estimates

68

74

Forward-Looking Statements

88

95

ITEM 7A.

Quantitative and Qualitative Disclosures About Market Risk

88

96

ITEM 8.

Financial Statements and Supplementary Data

91

99

ITEM 9.

Changes in and Disagreements With Accountants on Accounting and Financial Disclosure

91

99

ITEM 9A.

Controls and Procedures

91

99

ITEM 9B.

Other Information

92

99


PART III


PART III

ITEM 10.



Directors, Executive Officers and Corporate Governance

92



99

ITEM 11.

Executive Compensation

92

99

ITEM 12.

Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

92

100

ITEM 13.

Certain Relationships and Related Transactions, and Director Independence

92

100

ITEM 14.

Principal AccountantAccounting Fees and Services

92

100


PART IV


PART IV

ITEM 15.



Exhibits and Financial Statement Schedules

93



100


CERTIFICATIONS


CERTIFICATIONS


C-1




PART I

Item 1.    Business

GENERAL

White Mountains Insurance Group, Ltd. (the “Company”"Company" or the “Registrant”"Registrant") is an exempted Bermuda limited liability company whose principal businesses are conducted through its property and casualty insurance and reinsurance subsidiaries and affiliates. Within this report, the term “White Mountains”"White Mountains" is used to refer to one or more entities within the consolidated organization, as the context requires. The Company’sCompany's headquarters are located at Bank of Butterfield Building, 42 Reid Street, Hamilton, Bermuda HM 12, its principal executive office is located at 80 South Main Street, Hanover, New Hampshire 03755-2053 and its registered office is located at Clarendon House, 2 Church Street, Hamilton, Bermuda HM 11. White Mountains’Mountains' reportable segments are OneBeacon, White Mountains Re, Esurance and Other Operations.

The OneBeacon segment consists of OneBeacon Insurance Group, Ltd. (“("OneBeacon Ltd."), a Bermuda-basedan exempted Bermuda limited liability company that owns a family of U.S.-based property and casualty insurance companies (collectively “OneBeacon”"OneBeacon"), substantially all of which operate in a multi-company pool. OneBeacon offers a wide range of specialty, personalcommercial and commercialpersonal products and services sold primarily through select independent agents and brokers. OneBeacon was acquired by White Mountains in 2001 from Aviva plc. ("Aviva"), formerly CGNU, (the “OneBeacon Acquisition”"OneBeacon Acquisition"). During the fourth quarter of 2006, White Mountains sold 27.6 million, or 27.6%, of OneBeacon Ltd.’s's common shares in an initial public offering (the “OneBeacon Offering”"OneBeacon Offering"). In connection with the OneBeacon Offering,As of December 31, 2007, White Mountains undertook an internal reorganization (the “Reorganization”) and formedowned 72.9% of OneBeacon Ltd. for the purpose of holding certain of its property and casualty insurance businesses. As a result of the Reorganization, certain of White Mountains’ businesses that have been historically reported as part of its Other Operations segment are now owned by OneBeacon Ltd., and accordingly have been included in the OneBeacon segment for all periods presented in this report. In addition, certain other businesses of White Mountains that had been historically reported as part of its OneBeacon segment and which were not held by OneBeacon Ltd. following the OneBeacon Offering are included in the Other Operations segment for all periods presented in this report.Ltd's outstanding common shares.

The White Mountains Re segment consists of White Mountains Re Group, Ltd., a Bermuda-basedan exempted Bermuda limited liability company, and its subsidiaries (collectively, “White"White Mountains Re”Re"). White Mountains Re offers reinsurance capacity for property, liability,casualty, accident & health, agriculture, aviation and space, and certain marineother exposures on a worldwide basis through its subsidiaries, Folksamerica Reinsurance Company (“Folksamerica Re”, together with its immediate parent, Folksamerica Holding Company (“FHC”("Folksamerica"), “Folksamerica”), which has been a wholly-owned subsidiary of White Mountains since 1998, and Sirius International Insurance Corporation (“("Sirius International”International"). On April 16, 2004, and White Mountains acquired Sirius Insurance Holdings Sweden AB and its subsidiaries (“Sirius”) (the “Sirius Acquisition”). The principal companies acquired were Sirius International, Sirius America Insurance Company (“Sirius America”)Re Bermuda Ltd. ("WMRe (Bermuda)", which provides primary insurance programs in the United States, and Scandinavianformerly Fund American Reinsurance Company, Ltd. (“Scandinavian Re”), a reinsurance company that has been in run-off since 2002.. White Mountains Re also provides reinsurance advisory services, specializing primarily in property and other short-tailed lines of reinsurance, through White Mountains Re Underwriting Services Ltd. (“WMRUS”("WMRUS"). On August 3,During the third quarter of 2006, White Mountains Re sold one of its subsidiaries, Sirius America Insurance Company ("Sirius America"), to an investor group. As part of the transaction, White Mountains acquired an equity interest of approximately 18% in the acquiring entity, Lightyear Delos Acquisition Corp. (“Delos”("Delos"), and accounts for Delos on the equity method within its Other Operations segment.

The Esurance segment consists of Esurance Holdings, Ltd.Inc., a Bermuda-based company, and certain of its subsidiaries (collectively, “Esurance”"Esurance"). Esurance which has been a unit of White Mountains since October 2000, sells personal auto insurance directly to customers online and through select online agents.

White Mountains’Mountains' Other Operations segment consists of the Company and its intermediate holding companies, its wholly-owned investment management subsidiary, White Mountains Advisors LLC (“("WM Advisors”Advisors"), its weather risk management business (“Galileo”("Galileo"), its variable annuity reinsurance business, (“White Mountains Life Reinsurance (Bermuda) Ltd. ("WM Life Re”Re"), as well as the International American Group, Inc. (the “International"International American Group”Group") and various other entities not included in the other segments. The International American Group, which was acquired by White Mountains in 1999, consists of American Centennial Insurance Company (“("American Centennial”Centennial") and British Insurance Company of Cayman (“("British Insurance Company”Company"), both of which are in run-off. The Other Operations segment also includes White Mountains’Mountains' investments in warrants to purchase common shares of Montpelier Re Holdings, Ltd. (“Montpelier Re”),


and warrants to purchase common shares of Symetra Financial Corporation (“Symetra”("Symetra"), its investments in Delos and Pentelia Investment Ltd. ("Pentelia") and commonthe consolidated results of the Tuckerman Capital, LP and preferred shares of Delos.Tuckerman Capital II, LP funds (the "Tuckerman Funds").

White Mountains’Mountains' Operating Principles

White Mountains strives to operate within the spirit of four operating principles. These are:

Underwriting Comes First.An insurance enterprise must respect the fundamentals of insurance. There must be a realistic expectation of underwriting profit on all business written, and demonstrated fulfillment of that expectation overtime,over time, with focused attention to the loss ratio and to all the professional insurance disciplines of pricing, underwriting and claims management.


Maintain a Disciplined Balance Sheet.The first concern here is that insurance liabilities must always be fully recognized. Loss reserves and expense reserves must be solid before any other aspect of the business can be solid. Pricing, marketing and underwriting all depend on informed judgment of ultimate loss costs and that can be managed effectively only with a disciplined balance sheet.

Invest for Total Return.Historical insurance accounting has tended to hide unrealized gains and losses in the investment portfolio and over-reward reported investment income (interest and dividends). Regardless of the accounting, White Mountains must invest for the best growth in after-tax value overtime.over time. In addition to investing our bond portfolios for total after-tax return, that will also mean prudent investment in a balanced portfolio consistent with leverage and insurance risk considerations.

Think Like Owners.Thinking like owners has a value all its own. There are stakeholders in a business enterprise and doing good work requires more than this quarter’squarter's profit. But thinking like an owner embraces all that without losing the touchstone of a capitalist enterprise.

ONEBEACON

OneBeacon, whose United States headquarters is in Canton, Massachusetts, is a property and casualty insurance writer that provides a range of specialty insurance products as well as a variety of segmented commercial and personal insurance products. With roots dating back to 1831, OneBeacon has been operatingplacing business for more than 175 years and has many long-standing relationships withthrough independent insurance agencies, which is its primary distribution channel. At December31,December 31, 2007 and 2006, and 2005, OneBeacon had $9.9$9.5 billion and $9.8$9.9 billion of total assets, respectively, and shareholder’sshareholder's equity of $1.9 billion and $1.8 billion, respectively. At December 31, 2007 and $1.3 billion, respectively. As a result of the OneBeacon Offering,2006, White Mountains recorded $517 million and $491 million of minority interest related to its ownership in OneBeacon as of December 31, 2006.OneBeacon. OneBeacon wrote approximately $2.0$1.9 billion and $2.1$2.0 billion in net written premiums in 2007 and 2006, and 2005, respectively. OneBeacon’sAs of February 28, 2008, OneBeacon's principal operating insurance subsidiaries are rated “A”"A" (Excellent, the third highest of fifteen ratings) by A.M. Best and “A”"A" (Strong, the sixth highest of twenty-one ratings) by Standard & Poor’s,Poor's, rating agencies that specialize in the insurance and reinsurance industry.

Property and Casualty Insurance Overview

Generally, property and casualty insurance companies write insurance policies in exchange for premiums paid by itstheir customers (the insured). An insurance policy is a contract between the insurance company and the insured where the insurance company agrees to pay for losses suffered by the insured that are covered under the contract. Such contracts often are subject to subsequent legal interpretation by courts, legislative action and arbitration. Property insurance generally covers the financial consequences of accidental losses to the insured’sinsured's property, such as a home and the personal property in it, or a business’business' building, inventory and equipment. Casualty insurance (often referred to as liability insurance) generally covers the financial consequences of a legal liability of an individual or an organization resulting from negligent acts and omissions causing bodily injury and/or property damage to a third party. Claims on property coverage generally are reported and settled in a relatively short period of time, whereas those on casualty coverage can take years, even decades, to settle.

Insurance companies derive substantially all of their revenues from earned premiums, investment income and net gains and losses from sales of investment securities. Earned premiums represent premiums received from insureds, which are recognized as revenue over the period of time that insurance coverage is provided (i.e., ratably over the life of the policy). A significant period of time normally elapses between the receipt of insurance premiums and the payment of insurance claims. During this time, investment income is generated, consisting primarily of


interest earned on fixed maturity investments and dividends earned on equity securities. Net realized investment gains and losses result from sales of securities from the insurance companies’companies' investment portfolios.

Insurance companies incur a significant amount of their total expenses from policyholder losses, which are commonly referred to as “claims”"claims". In settling policyholder losses, various loss adjustment expenses (“LAE”("LAE") are incurred, such as insurance adjusters’adjusters' fees and litigation expenses. In addition, insurance companies incur policy acquisition expenses, such as commissions paid to agents and premium taxes, and other expenses related to the underwriting process, including compensation and benefits for professional and clerical staff.

The key measure of relative underwriting performance for an insurance company is the combined ratio. An insurance company’scompany's combined ratio under accounting principles generally accepted in the United States (“GAAP”("GAAP") is calculated by adding the ratio of incurred loss and LAE to earned premiums (the “loss ratio”"loss and LAE ratio") and the ratio of


policy acquisition and other underwriting expenses to earned premiums (the “expense ratio”"expense ratio"). A combined ratio under 100% indicates that an insurance company is generating an underwriting profit. However, when considering investment income and investment gains or losses, insurance companies operating at a combined ratio of greater than 100% can be profitable.

Lines of Business

OneBeacon’s        OneBeacon's business is managed through three major underwriting units: specialty lines, commercial lines and personal lines. OneBeacon’sOneBeacon's specialty lines businesses are national in scope, while its commercial and personal lines businesses have been concentrated primarily in the Northeastern United States.

Beginning in the fourth quarter of 2006, OneBeacon includes OneBeacon Specialty Property (“OBSP”) within its commercial lines underwriting unit and AutoOne Insurance (“AutoOne”) within its personal lines underwriting unit. Both OBSP and AutoOne were formerly reported in its specialty lines underwriting unit. The reporting change was undertaken to better align the reported results of OneBeacon’s underwriting units with the product and management structure of its underwriting units. Prior periods have been reclassified to conform to current year presentation.

For the twelve months ended December 31, 2007, 2006 and 2005, and 2004, OneBeacon’sOneBeacon's net written premiums by line of business were as follows:

Net written premiums by line of business
 Year Ended December 31,
Millions

 2007
 2006
 2005
Specialty $446.2 $437.6 $548.8
Commercial  727.7  718.3  654.4
Personal  690.4  800.6  910.2
Run-off  .1  1.1  7.7
  
 
 
Total $1,864.4 $1,957.6 $2,121.1
  
 
 

    Specialty lines

    Net written premiums by line of business

     

    Year Ended December 31,

     

    Millions

     

    2006

     

    2005

     

    2004

     

    Specialty

     

    $

    437.6

     

    $

    548.8

     

    $

    565.7

     

    Personal

     

    800.6

     

    910.2

     

    1,063.3

     

    Commercial

     

    718.3

     

    654.4

     

    826.8

     

    Other(1)

     

    1.1

     

    7.7

     

    3.3

     

    Total

     

    $

    1,957.6

     

    $

    2,121.1

     

    $

    2,459.1

     


(1)     Includes business in run-off.

                           Specialty lines

OneBeacon’s        OneBeacon's specialty lines underwriting unit is a collection of niche businesses that focus on solving the unique needs of particular customer groups on a national scale. Each of these businesses maintains stand-alone operations and distribution channels targeting their specific customer groups. OneBeacon provides distinct products and offers tailored coverages and services, managed by teams of market specialists.

OneBeacon���s OneBeacon's specialty businesses currently include:


OneBeacon offered additional rural and farm related products through National Farmers Union Property and Casualty Company (“NFU”("NFU") until its sale on September 30, 2005 and commercial farm and ranch and commercial agricultural products through its Agri division until the sale of the renewal rights of its policies on September 29, 2006.

For the twelve months ended December 31, 2007, 2006 and 2005, and 2004, OneBeacon’sOneBeacon's specialty lines net written premiums were as follows:

Specialty lines net written premiums

 

Year Ended December 31,

 

Specialty lines net written premiums
 Year Ended December 31,
Millions

Millions

 

2006

 

2005

 

2004

 

2007
 2006
 2005

OBPP

 

$

179.3

 

$

149.5

 

$

119.5

 

OBPP $213.9 $179.3 $149.5

IMU

 

139.9

 

133.6

 

136.5

 

IMU 158.6 139.9 133.6

Dewar, CBPL and A&H

 

53.7

 

49.2

 

47.6

 

Total on-going specialty lines

 

372.9

 

332.3

 

303.6

 

NFU(1)

 

 

132.5

 

178.5

 

Agri(1)

 

64.7

 

84.0

 

83.6

 

Other on-going specialty linesOther on-going specialty lines 73.7 53.7 49.2
 
 
 
Total on-going specialty lines 446.2 372.9 332.3
NFU(1)NFU(1)   132.5
Agri(1)Agri(1)  64.7 84.0
 
 
 

Total specialty lines

 

$

437.6

 

$

548.8

 

$

565.7

 

Total specialty lines $446.2 $437.6 $548.8
 
 
 

(1)
OneBeacon sold NFU on September 30, 2005 and sold the renewal rights to its Agri division policies on September 29, 2006.


OneBeacon provides insurance solutions for middle market and small businesses through products that target particular industry groups with customized coverages and services. In late 2004, OneBeacon’s commercial lines underwriting unit was separatedOneBeacon has begun to expand selectively into middle-market and small business divisionsnew geographic territories that align well with OneBeacon's approach to enable a specialized focus in each market and to recognize the difference in product needs, customers and service requirements.target specific customer segments.

OneBeacon’s        OneBeacon's middle market accounts typically produce annualized gross premiums ranging from $25,000 to $1,000,000 and principally purchase “package”"package" policies (combination policies offering property and liability coverage). OneBeacon targets 1314 distinct customer groups including technology, financial institutions, professional services, wholesalers, metalworkers and commercial real estate, among others. OneBeacon also providesproduces some standard commercial business that is not targeted to a specific industry group. By partnering with its specialty lines businesses, OneBeacon’sOneBeacon's middle market commercial lines business can deliver a seamless, comprehensive insurance solution. OneBeacon has also formed strategic partnerships with specialized insurance agencies to offer OneBeacon coverage to targeted customer groups such as technology companies and community banks.

Included in the middle market division of OneBeacon is OBSP.OneBeacon Specialty Property ("OBSP"). Formed in 2004, OBSP provides excess property coverage against certain damages over and above those covered by primary policies or a large self-insured retention. Target classes include apartments and condominiums, commercial real estate, small-to-medium manufacturing, retail/wholesale and public entity and educational institutions. ItsOBSP has a preference for principally low catastrophe-exposed risks. However, OBSP is exposed to large catastrophes, like Hurricane Katrina, that may cause losses to insured property in excess of its policies' attachment points. OBSP manages its catastrophic wind, earthquake and terrorism risks within the OneBeacon catastrophe management programs, including individual risk and portfolio-loss modeling and reinsurance protection. OneBeacon's excess property solutions are provided primarily through surplus lines wholesalers in all 50 states and the District of Columbia.


OneBeacon also markets package, auto,automobile, workers compensation and umbrella coverage to small businesses, which typically generate annualized premiums ranging from $500 to $25,000. OneBeacon targets 14 industry groups as well as some association and group businesses with products that provide a highly competitive solution for select agents. OneBeacon’sOneBeacon's small-business growth strategy is to target insurance networks of typically suburban and rural agents thatwho represent a strong customer base in those areas. OneBeacon’sOneBeacon's proprietary web platform has expedited underwriting at the point of sale, which has enabled growth in new territories while limiting the need for much incremental infrastructure. In the first quarter of 2006, OneBeacon introduced a small business service center to handle customer administration for enrolled agents.

OneBeacon’s        OneBeacon's commercial lines products include:

For the years ended December 31, 2007, 2006 2005 and 2004,2005, commercial lines net written premiums were as follows:

Commercial lines net written premiums
 Year Ended December 31,
Millions

 2007
 2006
 2005
Middle market excluding OBSP $557.6 $564.8 $531.6
OBSP  32.2  51.2  43.6
  
 
 
 Total middle market  589.8  616.0  575.2
Small business  137.9  102.3  79.2
  
 
 
Total commercial lines $727.7 $718.3 $654.4
  
 
 

        

                           Personal lines

OneBeacon’sOneBeacon's personal lines underwriting unit provides homeowners insurance, segmented private passenger automobile and package policies (package products are combination policies offering home and automobile coverage with optional umbrella, boatowners and other coverages) sold through select independent agents. OneBeacon refers to this business, management services provided to reciprocal insurance exchanges and the consolidation of reciprocal insurance exchanges described below, as traditional personal lines.

In 2004, OneBeacon created a highly segmented product suite, called OneChoice, under which it is able to offer the appropriate risk-adjusted product and pricing to its customers. OneChoice is a multi-tiered product suite that enables OneBeacon to offer a broader range of coverages to a full spectrum of customers through more sophisticated pricing models that have a greater statistical correlation between historical loss experience and price than traditional pricing models. This product suite offers both automobile and homeowners coverages as well as package policies. OneChoice products rely on multiple, objective pricing tiers and rules-based underwriting that enable agents to offer OneBeacon solutions to a broad array of its customers and increase OneBeacon’s penetration in existing and new markets.OneBeacon's market penetration. OneBeacon


regularly refines its product features and rating plans to optimize target market production. OneBeacon offers an integrated web-based platform availableEase of use is a critical aspect of this business. Agents can access OneChoice through either through its dedicatedOneBeacon's proprietary agent portal or through real-time comparative rating engines. The availability of multiple channels to access OneBeacon's product offerings provides increased opportunities for new business.

Within OneBeacon’sOneBeacon's personal lines underwriting unit, OneBeacon also provides management services for a fee to three reciprocal insurance exchanges (“reciprocals”("reciprocals") that OneBeacon has created and capitalized by lending the reciprocals moneyfunds in exchange for surplus notes. Reciprocals are not-for-profit, policyholder-owned insurance carriers organized as unincorporated associations. As required by GAAP, White Mountains’Mountains' consolidated financial statements reflect the consolidation of these reciprocals (SeeNote 15 - “Variable18—"Variable Interest Entities”Entities").

In 2002, OneBeacon formed New Jersey Skylands Management LLC to provide management services for a fee to New Jersey Skylands Insurance Association, a reciprocal, and its wholly owned subsidiary New Jersey Skylands Insurance Company, (collectively, “New Jersey Skylands Insurance”). New Jersey Skylands Insurance began writing personal automobile coverage for new customers in August 2002. During 2004, OneBeacon formed Houston General Insurance Management Company to provide management services for a fee to another reciprocal, Houston General Insurance Exchange. Houston General Insurance Exchange commenced writing business in Arizona, South Carolina and Texas in November 2005, June 2006 and October 2006, respectively, using the full suite of OneChoice products (auto, home and package). In 2006, Adirondack AIF, LLC, a wholly owned subsidiary of OneBeacon, entered into an agreement to provide management services for a fee to Adirondack Insurance Exchange, which was approved to write business in New York. OneBeacon has no ownership interest in New Jersey Skylands Insurance, Houston General Insurance Exchange or Adirondack Insurance Exchange.

OneBeacon’s        OneBeacon's personal lines products include:

OneBeacon’s        OneBeacon's personal lines underwriting unit also includes AutoOne.AutoOne Insurance ("AutoOne"). Formed in 2001, AutoOne is a market leader in “assigned risk”"assigned risk" business in New York. Assigned risk plans provide automobile insurance for individuals unable to secure coverage in the voluntary market. Insurance carriers are obliged to accept future assignments from state assigned risk pools as a condition of maintaining a license to write automobile business in the state. However, carriers may satisfy their assigned risk obligation by transferring their assignments to another insurer or by utilizing various “credits”"credits" (i.e. take-out, territorial and youthful driver credits). AutoOne offers services known as Limited Assigned Distribution, or LAD, and Commercial Limited Assigned Distribution, or CLAD, and credit programs to insurance carriers. While AutoOne was able to expand its product offerings to an additional 12 states in the first quarter of 2006, its overall volume of business is shrinkingdecreased due to an expanding voluntarya significant decrease in the involuntary market in New York and New Jersey, where the majority of AutoOne’sAutoOne's assigned risk business is generated. AutoOne now provides 28 LAD and CLAD programs in 22 states where assigned risk obligations may be assumed by a servicing carrier under a negotiated fee arrangement.

AutoOne also writes “voluntary"voluntary take-out business”business" (policies “taken out”"taken out" of the assigned risk pool and written in the voluntary market) by selecting policies from the assigned risk business it manages for its clients and from select insurance brokers thatto replace theirits clients assigned risk policy with an AutoOne policy. AutoOne receives credits for all policies taken out of the assigned risk plan which it can use either to reduce its future assigned risk obligations, or to sell to other carriers that can use the credits to reduce their own quota obligations. In 2006,2007, AutoOne wrote more take-out business than all other carriers in New York combined and all of its take-out credits were sold to other carriers or used internally to reduce OneBeacon’sOneBeacon's own assigned risk quota obligation.

For the years ended December 31, 2007, 2006 2005 and 2004,2005, personal lines net written premiums were as follows:

Personal lines net written premiums

 

Year Ended December 31,

 

Personal lines net written premiums
 Year Ended December 31,
 

Millions

 

2006

 

2005

 

2004

 

Millions

 
Millions

2007
 2006
 2005
 

 

$

492.7

 

$

618.8

 

$

724.7

 

Traditional excluding reciprocals $338.0 $492.7 $618.8 

Reciprocals

 

93.2

 

43.5

 

75.5

 

Traditional personal lines

 

585.9

 

662.3

 

800.2

 

Reciprocals(1)Reciprocals(1) 221.3 93.2 43.5 
 
 
 
 
Traditional personal lines 559.3 585.9 662.3 

AutoOne

 

222.6

 

248.8

 

275.3

 

AutoOne 134.6 222.6 248.8 

Other(1)

 

(7.9

)

(.9

)

(12.2

)

Other(2)Other(2) (3.5) (7.9) (.9)
 
 
 
 

Total personal lines

 

$

800.6

 

$

910.2

 

$

1,063.3

 

Total personal lines $690.4 $800.6 $910.2 
 
 
 
 

(1)
Adirondack Insurance Exchange, a reciprocal insurance exchange, began writing new and renewing traditional personal lines policies in the second half of 2006.

(2)
Represents elimination between traditional personal lines and AutoOne.


Geographic Concentration

OneBeacon’s        OneBeacon's net written premiums are derived solely from business produced in the United States. Business from specialty, personal and commercial lines was produced in the following states:

 

Year Ended December 31,

 


 Year Ended December 31,
 
Specialty, personal and commercial net written premiums by state

Specialty, personal and commercial net written premiums by state

 

 

2006

 

2005

 

2004

 

2007
 2006
 2005
 

New York

 

27

%

27

%

30

%

New York 22%27%27%

Massachusetts

 

17

 

17

 

17

 

Massachusetts 16 17 17 

California

 

9

 

7

 

8

 

California 8 9 7 

New Jersey

 

8

 

9

 

9

 

New Jersey 8 8 9 

Maine

 

6

 

6

 

6

 

Maine 6 6 6 

Connecticut

 

5

 

5

 

5

 

Connecticut 6 5 5 

Other(1)

 

28

 

29

 

25

 

Total

 

100

%

100

%

100

%

Other(1)Other(1) 34 28 29 
 
 
 
 
Total 100%100%100%
 
 
 
 

(1)
No individual state is greater than 3% of specialty, personal andor commercial net written premiums for the years ended December 31, 2007, 2006 2005 and 2004.2005.

Marketing

8




Marketing

OneBeacon offers its products through a network comprised of independent insurance agents, regional and national brokers and wholesalers. OneBeacon’sOneBeacon's distribution relationships consist of approximately 2,8002,840 select agencies and brokers. No agency or broker produced more than 3% of OneBeacon’sOneBeacon's direct written premiums during 2006. 2007.

OneBeacon’s        OneBeacon's specialty lines businesses are managed from locations logistically appropriate to their target markets. OBPP is based in Avon, Connecticut and distributes its products through select national and regional brokers and agents. IMU is headquartered in New York City and operates through nine branch locations throughout the United States. Its products are distributed through a network of select agents that specialize in marine business. Dewar’sDewar's affiliate, A.W.G. Dewar Agency, which is headquartered in Quincy, Massachusetts, and distributes tuition refund products to independent schools and colleges throughout North America.

OneBeacon A&H conducts business through independent agents and brokers and selectively markets directly to customers. GRS distributes its products through agents and brokers.

        The majority of OneBeacon's commercial and personal lines products are distributed through select independent insurance agents. OneBeacon protects the integrity of its franchise value by selectively appointing agents except for products sold bythat demonstrate business and geographic profiles that align with its target markets and specialized capabilities. OneBeacon believes that independent insurance agents add value because they conduct more complete assessments of their clients' needs, which in turn results in more appropriate coverages and prudent risk management. OneBeacon also believes that independent agents will continue to be a significant force in overall industry premium production including the facilitation of cross-selling of specialty, commercial and personal business products. OneBeacon's commercial lines middle-market business, OBSP, and AutoOne. OBSP’sprovides its excess property solutions are provided primarily through surplus lines wholesalers. In New York, AutoOne personal lines business generates take-out credits by writing policies through from select insurance brokers that were previously in the New York Automobile Insurance Plan, or NYAIP, andNYAIP. AutoOne sells these credits to insurance companies subject to NYAIP assignments. AutoOne markets its LAD and CLAD services and New York take-out credits directly to insurance carriers seeking assigned risk solutions.

        Each year, OneBeacon protects the integrity ofdesignates its franchise value by selectively appointing agents in those areas where it conducts business. OneBeacon believes that independent insurance agents provide more complete assessments of clients’ needs, which results in more appropriate coverages and prudent risk management. OneBeacon also believes that independent agents will continue to be a significant force in overall industry premium production as well as facilitate the cross-selling of specialty, commercial and personal business products.

OneBeacon’s top performing agencies have been designated as Lighthouse Partners,"Lighthouse Partners", a program designed to strengthen these priority relationships and build those books of business. This program was introduced in the second quarter of 2006 and provides enhanced benefits such as priority account handling, of accounts, access to OneBeacon’sOneBeacon's entire franchise of products, preferred profit-sharing opportunities, and priority access to OneBeacon’sOneBeacon's producer development school and co-op advertising.advertising program. There were 9895 agencies withthat achieved this designation in 2006. These agencies2007. OneBeacon's Lighthouse Partners represent fewer than five percent3% of OneBeacon’s overall agency plantOneBeacon's agencies but write approximately 22 percent20% of OneBeacon’sOneBeacon's business and over 25 percent20% of OneBeacon’sOneBeacon's new business. OneBeacon believes that its Lighthouse Partners are the core of its distribution and marketing system and that this deeper mutual commitment will benefit both these agencies and OneBeacon.


Underwriting and Pricing

OneBeacon believes there must be a realistic expectation of attaining an underwriting profit on all the business it writes, as well as a demonstrated fulfillment of that expectation overtime.over time. Adequate pricing is a critical component for achieving an underwriting profit. OneBeacon will underwrite its book with a disciplined approach towards pricing its insurance products and is willing to forgo a business opportunity if it believes that the opportunity is not priced appropriately to the exposure.

Specialization —         Specialization—or a heightened focus on certain customer groups and/or geographies through products, pricing and expertise — expertise—is a key driver of OneBeacon’sOneBeacon's strategy in specialty lines and is being extended into OneBeacon’sOneBeacon's commercial and personal businesses. The proprietary knowledge OneBeacon develops regarding the industry, class and risk characteristics provides it with a competitive edge for its terms and conditions on individual accounts. OneBeacon believes that specialization will result in superior returns as compared to a more “generalist”"generalist" underwriting approach.

OneBeacon has used tiered rating plans since 2003 in both its commercial and personal lines. Doing solines, which permits it to offer more tailored price quotes to its customers based on underwriting criteria applicable to each tier. As a result, OneBeacon now has the flexibility to renew expiring policies into the appropriate tier rather than being forced to choose to either renew the policy at the same base rate or cancel the policy. The enhanced accuracy and precision of OneBeacon’sOneBeacon's rate plans enable it to more confidently price its products to the exposure, and thereby permits its agency partners to deliver solutions to a broader range of customers.


OneBeacon also monitors pricing activity on a weekly basis and regularly measures usage of tiers, credits, debits and limits. In addition, OneBeacon regularly updates base rates to achieve targeted returns on surpluscapital and attempts to shift writings away from lines and classes where pricing is inadequate. To the extent changes in premium rates, policy forms or other matters are subject to regulatory approval, OneBeacon proactively monitors its pending regulatory filings to facilitate, to the extent possible, their prompt processing and approval. Lastly, OneBeacon expends considerable effort to measure and verify exposures and insured values.

Competition

Property and casualty insurance is highly competitive. In specialty lines, OneBeacon competes with numerous regional and national insurance companies, most notably The Chubb Corporation, American International Group, The St. Paul Travelers Companies, Inc. and CNA Financial Corporation. In commercial and personal lines, OneBeacon competes with numerous regional and national insurance companies, most notably The St. Paul Travelers Companies, Inc., Zurich Financial Services Group, CNA Financial Corporation, Hartford Financial Services Group, Inc., The Hanover Insurance Group, Inc., W.R. Berkley Corporation, The Chubb Corporation, The Progressive Corporation, Allstate Insurance Company and Liberty Mutual Insurance Company (“("Liberty Mutual”Mutual"). The more significant competitive factors for most insurance products OneBeacon offers are price, product terms and claims service. OneBeacon’sOneBeacon's underwriting principles and dedication to independent agency distribution are unlikely to make it the low-cost provider in most markets. However, while it is often difficult for insurance companies to differentiate their products to consumers, OneBeacon believes that its dedication to providing superior product offerings, expertise and local talent, claims service and disciplined underwriting provide a competitive advantage over typical low-cost providers.

Claims Management

Effective claims management is a critical factor in achieving satisfactory underwriting results. OneBeacon maintains an experienced staff of appraisers, medical specialists, managers, staff attorneys and field adjusters strategically located throughout its operating territories. OneBeacon also maintains a special investigative unit designed to detect insurance fraud and abuse, and supports efforts by regulatory bodies and trade associations to curtail fraud.

Claims are separately organized by specialty, commercial, personal and run-off operations. This approach allows OneBeacon to better identify and manage claims handling costs. In addition, a shared claims service unit manages costs related to both staff and vendors. OneBeacon takes a total claims cost management approach that gives equal importance to controlling claims handling expenses, legal expenses and claims payments, enabling it to lower the sum of the three. This approach requires the utilization of approximately fifty metrics to monitor the effectiveness of various programs implemented to lower total loss cost. The metrics are designed to guard against the implementation of an expense containment program that will cost OneBeacon more than it expects to save. As an example, an internal legal bill audit team has contributed to savings by reducing legal invoices submitted by outside counsel.


OneBeacon’s        OneBeacon's claims department utilizes a claims workstation that records reserves, payments and adjuster activity and assists each claim handler in evaluating bodily injury claims, determining liability and identifying fraud. OneBeacon’sOneBeacon's commitment and performance in fighting insurance fraud has reduced claim costs and aided law enforcement investigations. Under its staff counsel program, OneBeacon’sOneBeacon's in-house attorneys defend the majority of new lawsuits, which has resulted in savings when compared to the cost of using outside counsel. In addition, OneBeacon’s internal legal bill audit team has contributed to savings by reducing the amounts paid to outside counsel.

Most of OneBeacon’s claims for run-off operations are handled by in-house adjusters.        Calendar year reported claims in OneBeacon’sOneBeacon's run-off operations have decreasedwere 1,800 in 2007 compared to 1,7002,400 in 2006, compared to 3,400 in 2005 and 5,900 in 2004,a 25% reduction, in part due to the lapse of time and the nature of run-off operations. These levels of reported claims are down from 202,0003,400 in 20022005, 5,900 in 2004 and 64,800 in 2003. Total open claims for run-off operations were 5,500 at December 31, 2007 compared to 7,300 at December 31, 2006, compared to 10,200 at December 31, 2005, a 28%25% reduction, which reflects the success of OneBeacon’sOneBeacon's focus on settling claims from its run-off operations. Total open claims for run-off operations were 10,200 in 2005, 14,600 in 2004 and 33,000 in 2003. These numbers included all of the run-off claims that were previously handled by Liberty Mutual as a Third Party Administrator (“TPA”("TPA") pursuant to a renewal rights agreement (the "Liberty Agreement"). Under the Liberty Agreement, which expired on October 31, 2003, OneBeacon transferred its regional agency business, agents and operations in 42 states and the District of Columbia to Liberty Mutual. Most of OneBeacon's claims for run-off operations are handled by in-house adjusters.


In connection with the OneBeacon Acquisition, Aviva caused OneBeacon to purchase of OneBeacon by White Mountains in 2001,a reinsurance contract from the National Indemnity Company ("NICO") to help protect against potential asbestos and environmental ("A&E") claims relating to the pre-acquisition period OneBeacon purchased a reinsurance contract (the “NICO Cover”) from the National Indemnity Company (“NICO”"NICO Cover"). See the discussion in the "Reinsurance Protection”Protection" section below. NICO has retained a TPA, Resolute New England (“Resolute”("Resolute"), formerly Cavell USA),USA, to manage the claims processing for asbestos and environmentalA&E claims reinsured under the NICO Cover. OneBeacon’sOneBeacon's claims department personnel are consulted by NICO and Resolute on major claims. As with all TPAs, claims department personnel perform claim audits on Resolute to ensure their controls, processes and settlements are appropriate. For more information regarding OneBeacon’sOneBeacon's A&E exposures, see the “Asbestos"Asbestos and Environmental Reserves”Reserves" discussion included in "CRITICAL ACCOUNTING ESTIMATES”ESTIMATES" in “Management’s"Management's Discussion and Analysis of Financial Condition and Results of Operations”Operations".

Reinsurance Protection and Catastrophe Management

        In the ordinary course of its business, OneBeacon purchases reinsurance from high-quality, highly rated third party reinsurers in order to minimize loss from large risks or catastrophic events.

        The timing and size of catastrophe losses are unpredictable and the level of losses experienced in any year could be material to OneBeacon's operating results and financial position. Examples of catastrophes include losses caused by hurricanes, earthquakes, wildfires and other types of storms and terrorist acts. The extent of losses caused by catastrophes is both a function of the amount and type of insured exposure in an area affected by the event and the severity of the event. OneBeacon uses models (primarily AIR V.9) to estimate the losses its exposures would generate under various scenarios as well as the probability of those losses occurring. OneBeacon uses these model outputs in conjunction with other data to manage its exposure to catastrophe losses through individual risk selection and by limiting its concentration of insurance written in catastrophe-prone areas, such as coastal regions. In addition, OneBeacon imposes wind deductibles on existing coastal windstorm exposures. OneBeacon believes that its largest single-event natural catastrophe exposures are Northeastern United States windstorms and California earthquakes.

        OneBeacon seeks to further reduce its potential loss from catastrophe exposures through the purchase of catastrophe reinsurance. Effective July 1, 2007, OneBeacon renewed its property catastrophe reinsurance program through June 30, 2008. The program provides coverage for all of OneBeacon's property business including automobile physical damage, as well as terrorism coverage for non-Terrorism Risk Insurance Act of 2002 (the "Terrorism Act") events (excluding nuclear, biological, chemical and radiological). Under the program, the first $150 million of losses resulting from a single catastrophe are retained by OneBeacon and $650 million of the next $700 million of losses resulting from the catastrophe are reinsured. Any loss above $850 million would be retained by OneBeacon. In the event of a catastrophe, OneBeacon's property catastrophe reinsurance program is reinstated for the remainder of the original contract term by paying a reinstatement premium that is based on the percentage of coverage reinstated and the original property catastrophe coverage premium. OneBeacon anticipates this $850 million limit is sufficient to cover Northeast windstorm losses with a 0.4%-0.5% probability of occurrence (1-in-250-year event to 1-in-200-year event) based on OneBeacon's catastrophe modeling. Actual losses incurred by OneBeacon resulting from any particular catastrophic event may be substantially different than modeled losses from such event.


        OneBeacon's property catastrophe reinsurance program does not cover personal or commercial property losses resulting from nuclear, biological or chemical terrorist attacks. The program covers personal property losses resulting from "certified" events as defined under the Terrorism Act, such as foreign terrorism, provided such losses were not caused by nuclear biological or chemical means. The program also covers personal and commercial property losses resulting from "non-certified" events as defined under the Terrorism Act, such as domestic terrorist attacks, provided such losses were not caused by nuclear, biological or chemical means.

        OneBeacon also purchases individual property reinsurance coverage for certain risks to reduce large loss volatility. The property-per-risk reinsurance program reinsures losses in excess of $5 million up to $100 million. OneBeacon may purchase individual risk facultative reinsurance above $100 million in certain circumstances. The property-per-risk treaty also provides one limit of reinsurance protection for losses in excess of $10 million up to $100 million on an individual risk basis for terrorism losses. However, nuclear, biological and chemical events are not covered.

        OneBeacon also maintains a casualty reinsurance program that provides protection for individual risk or catastrophe losses involving workers compensation, general liability, automobile liability or umbrella liability in excess of $6 million up to $81 million. This program provides coverage for terrorism losses but does not provide coverage for losses resulting from nuclear, biological or chemical attacks.

        In connection with the OneBeacon Acquisition in 2001, Aviva caused OneBeacon to purchase reinsurance contracts with two reinsurance companies rated "AAA" ("Extremely Strong", the highest of twenty-one ratings) by Standard & Poor's and "A++" ("Superior", the highest of fifteen ratings) by A.M. Best. One contract is the NICO Cover, which entitles OneBeacon to recover up to $2.5 billion in ultimate loss and LAE incurred related primarily to A&E claims arising from business written by OneBeacon's predecessor prior to 1992 for asbestos claims and 1987 for environmental claims. As of December 31, 2007, OneBeacon has ceded estimated incurred losses of approximately $2.1 billion to the NICO Cover. The other contract is a reinsurance cover with General Reinsurance Corporation ("GRC") for up to $570 million of additional losses on all claims arising from accident years 2000 and prior (the "GRC Cover"). As of December 31, 2007, OneBeacon has ceded estimated incurred losses of $550 million to the GRC Cover. Pursuant to the GRC Cover, OneBeacon is not entitled to recover losses to the full contract limit if such losses are reimbursed by GRC more quickly than anticipated at the time the contract was signed. OneBeacon intends to only seek reimbursement from GRC for claims which result in payment patterns similar to those supporting the recoverables recorded pursuant to the GRC Cover. The economic cost of not submitting certain other eligible claims to GRC is primarily the investment spread between the rate credited by GRC and the rate achieved by OneBeacon on its investments. This cost, if any, is expected to be small.

        Reinsurance contracts do not relieve OneBeacon of its obligation to its policyholders. Therefore, collectibility of balances due from reinsurers is critical to its financial strength. SeeNote 4—"Third Party Reinsurance" in the accompanying Consolidated Financial Statements for a discussion of the largest balances due from OneBeacon's reinsurers.

Terrorism

Since the terrorist attacks of September 11, 2001 (the “Attacks”"Attacks"), OneBeacon has sought to mitigate the risk associated with any future terrorist attacks by limiting the aggregate insured value of policies in geographic areas with exposure to losses from terrorist attacks. This is accomplished by either limiting the total insured values exposed, or, where applicable, through the use of terrorism exclusions.

On        In December 22, 2005,of 2007, the United States government extended the Terrorism Act which was set to expire onuntil December 31, 2005, for two more years.2014. The Terrorism Act was originally enacted on November 26,in 2002 and established a Federal “backstop”"backstop" for commercial property and casualty losses, including workers compensation, resulting from acts of terrorism by or on behalf of any foreign person or foreign interest. As extended, the law now covers domestic acts of terrorism. The law limits the industry’sindustry's aggregate liability by requiring the Federal government to share 85% of certified losses in 2007 once a company meets a specific retention or deductible as determined by its prior year’syear's direct written premiums and limits the aggregate liability to be paid by the government and industry without further action by Congress at $100.0 billion. In exchange for this “back-stop,”"backstop", primary insurers are required to make coverage available to commercial insureds for losses from acts of non-domestic terrorism as specified in the Terrorism Act. The following types of coverage are excluded from the program: commercial automobile, burglary and theft, surety, farmowners multi-peril and all professional liability coverage except directors and officers coverage.


OneBeacon estimates its individual retention level for commercial policies subject to the Terrorism Act to be approximately $162$170 million in 2007.2008. The aggregate industry retention level is $27.5 billion in 2007.2008. The Federal government will pay 85% of covered terrorism losses that exceed OneBeacon’sOneBeacon's or the industry’sindustry's retention levels in 20072008 up to a total of $100$100.0 billion.

The catastrophe reinsurance protection that OneBeacon currently has obtained provides coverage for “non-certified”"non-certified" events as defined under the Terrorism Act, provided such losses are not the result of a nuclear, biological or chemical attack. See the discussion in the "Reinsurance Protection”Protection and Catastrophe Management" section belowabove for a further description of OneBeacon’sOneBeacon's catastrophe program.

OneBeacon closely monitors and manages its concentration of risk by geographic area. OneBeacon’s strategyOneBeacon's guideline is to control its exposures so that its total maximum expected loss from a likely terrorism event within any half-mile radius in a metropolitan area or around a target risk will not exceed $200 million, or $300 million in all other areas. OneBeacon monitors its terrorism exposures from existing policies on a quarterly basis, and the exposure of potential new business located in areas of existing concentration or that individually present significant exposure is evaluated during the underwriting process. As a result, OneBeacon believes that it has taken appropriate actions to limit its exposure to losses from terrorist attacks and it will continue to monitor its terrorism exposure in the future. Nonetheless, risks insured by OneBeacon, including those covered by the Terrorism Act, remain exposed to terrorist attacks and the possibility remains that losses resulting from future terrorist attacks could prove to be material.


Reinsurance Protection

In the ordinary course of its business, OneBeacon purchases reinsurance from high-quality, highly rated, third party reinsurers in order to minimize loss from large risks or catastrophic events.

The timing and size of catastrophe losses are unpredictable and the level of losses experienced in any year could be material to OneBeacon’s operating results and financial position. Examples of catastrophes include losses caused by hurricanes, earthquakes, wildfires and other types of storms and terrorist acts. The extent of losses caused by catastrophes is both a function of the amount and type of insured exposure in an area affected by the event and the severity of the event. OneBeacon uses models (primarily AIR V.8) to estimate losses its exposures would generate under various scenarios as well as the probability of those losses occurring. OneBeacon uses this model output in conjunction with other data to manage its exposure to catastrophe losses through individual risk selection and by limiting its concentration of insurance written in catastrophe-prone areas, such as coastal regions. In addition, OneBeacon imposes wind deductibles on existing coastal windstorm exposures. OneBeacon believes that its largest single event natural catastrophe exposures are Northeastern United States windstorms and California earthquakes.OneBeacon.

OneBeacon seeks to further reduce its potential loss from catastrophe exposures through the purchase of catastrophe reinsurance. Effective July 1, 2006, OneBeacon renewed its property catastrophe reinsurance program through June 30, 2007. Under that cover, the first $200 million of losses resulting from any single catastrophe are retained by OneBeacon and losses from a single event in excess of the first $200 million and up to $850 million are reinsured for 100% of the loss. OneBeacon anticipates this $850 million limit is sufficient to cover Northeast windstorm losses with a 0.4%-0.5% probability of occurrence (1-in-250-year event to 1-in-200-year event). In the event of a catastrophe, OneBeacon’s property catastrophe reinsurance program is automatically reinstated for the remainder of the original contract term for a reinstatement premium that is based on the percentage of coverage reinstated and the original property catastrophe coverage premium.

OneBeacon’s property catastrophe reinsurance program does not cover personal or commercial property losses resulting from nuclear, biological or chemical terrorist attacks. The program covers personal property losses resulting from “certified” events as defined under the Terrorism Act, such as foreign terrorism, provided such losses were not caused by nuclear biological or chemical means. The program also covers personal and commercial property losses resulting from “non-certified” events as defined under the Terrorism Act, such as domestic terrorist attacks, provided such losses were not caused by nuclear, biological or chemical means.

OneBeacon also purchases individual property reinsurance coverage for certain risks to reduce large loss volatility. The property-per-risk reinsurance program reinsures losses in excess of $5 million up to $75 million. Individual risk facultative reinsurance may be purchased above $75 million where OneBeacon deems it appropriate. The property-per-risk treaty also provides one limit of reinsurance protection for losses in excess of $10 million up to $75 million on an individual risk basis for terrorism losses. However, nuclear, biological and chemical events are not covered.

OneBeacon also maintains a casualty reinsurance program that provides protection for individual risk or catastrophe losses involving workers compensation, general liability, automobile liability or umbrella liability in excess of $6 million up to $81 million. This program provides coverage for either “certified” or “non-certified” terrorism losses but does not provide coverage for losses resulting from nuclear, biological or chemical attacks.

In 2001, OneBeacon purchased reinsurance contracts with two reinsurance companies rated “AAA” (“Extremely Strong”, the highest of twenty-one ratings) by Standard & Poor’s and “A++” (“Superior”, the highest of fifteen ratings) by A.M. Best. One contract is a reinsurance cover with NICO which entitles OneBeacon to recover up to $2.5 billion in ultimate loss and LAE incurred related primarily to A&E claims arising from business written by OneBeacon’s predecessor prior to 1992 for asbestos claims and 1987 for environmental claims. As of December 31, 2006, OneBeacon has ceded estimated incurred losses of approximately $2.1 billion to the NICO Cover. The other contract is a reinsurance cover with General Reinsurance Corporation, or GRC, for up to $570 million of additional losses on all claims arising from accident years 2000 and prior. As of December 31, 2006, OneBeacon has ceded estimated incurred losses of $550 million to the GRC Cover. Pursuant to the GRC Cover, OneBeacon is not entitled to recover losses to the full contract limit if such losses are reimbursed by GRC more quickly than anticipated at the time the contract was signed. OneBeacon intends to only seek reimbursement from GRC for claims which result in payment patterns similar to those supporting the recoverables recorded pursuant to the GRC Cover. The economic cost of not submitting certain other eligible claims to GRC is primarily the investment spread between the rate credited by GRC and the rate achieved by OneBeacon on its investments. This cost, if any, is expected to be small.


Reinsurance contracts do not relieve OneBeacon of its obligation to its policyholders. Therefore, collectibility of balances due from reinsurers is critical to its financial strength. See Note 4 - “Third Party Reinsurance” in the accompanying Consolidated Financial Statements for a discussion of the largest balances due from OneBeacon’s reinsurers.

Loss and Loss Adjustment Expense Reserves

OneBeacon establishes loss and LAE reserves that are estimates of amounts needed to pay claims and related expenses in the future for insured events that have already occurred. The process of estimating reserves involves a considerable degree of judgment by management and, as of any given date, is inherently uncertain. See "CRITICAL ACCOUNTING ESTIMATES”ESTIMATES" in “Management’s"Management's Discussion and Analysis of Financial Condition and Results of Operations”Operations" for a full discussion regarding OneBeacon’sOneBeacon's loss reserving process.

The following information presents (1) OneBeacon’sOneBeacon's reserve development over the preceding tenseven years and (2) a reconciliation of reserves in accordance with accounting principles and practices prescribed or permitted by insurance authorities (“Statutory”("Statutory" basis) to such reserves determined in accordance with GAAP, each as prescribed by Securities Act Industry Guide No. 6.

Section I of the 10 year table shows the estimated liability that was recorded at the end of each of the indicated years for all current and prior accident year unpaid loss and LAE. The liability represents the estimated amount of loss and LAE for claims that were unpaid at the balance sheet date, including incurred but not reported (“IBNR”("IBNR") reserves. In accordance with GAAP, the liability for unpaid loss and LAE is recorded in the balance sheet gross of the effects of reinsurance with an estimate of reinsurance recoverables arising from reinsurance contracts reported separately as an asset. The net balance represents the estimated amount of unpaid loss and LAE outstanding as of the balance sheet date, reduced by estimates of amounts recoverable under reinsurance contracts.

Section II shows the cumulative amount of net loss and LAE paid relating to recorded liabilities as of the end of each succeeding year. Section III shows the re-estimated amount of the previously recorded net liability as of the end of each succeeding year. Estimates of the liability for unpaid loss and LAE are increased or decreased as payments are made and more information regarding individual claims and trends, such as overall frequency and severity patterns, becomes known. Section IV shows the cumulative net (deficiency)/redundancy representing the aggregate change in the liability from original balance sheet dates and the re-estimated liability through December 31, 2006.2007. Section V shows the re-estimated gross liability and re-estimated reinsurance recoverables through December 31, 2006.2007. Section VI shows the cumulative gross (deficiency)/redundancy representing the aggregate change in the liability frombetween original balance sheet dates and the re-estimated liability through December 31, 2006.2007.


OneBeacon Loss and LAE(1), (3), (4)
Years Ended December 31,

($ in millions)

 

1996

 

1997

 

1998(2)(5)

 

1999

 

2000

 

2001

 

2002

 

2003

 

2004

 

2005

 

2006

 

I. Liability for unpaid losses and LAE: Gross balance

 

$

5,804.4

 

$

5,655.9

 

$

6,869.5

 

$

6,276.0

 

$

6,875.4

 

$

8,320.2

 

$

7,507.0

 

$

6,109.0

 

$

5,328.2

 

$

5,713.4

 

$

5,108.2

 

Less: reins. recoverables on unpaid losses and LAE

 

(1,260.4

)

(1,159.2

)

(1,641.0

)

(1,262.7

)

(1,252.1

)

(3,591.5

)

(3,534.4

)

(2,954.8

)

(2,670.9

)

(3,382.0

)

(3,079.7

)

Net balance

 

$

4,544.0

 

$

4,496.7

 

$

5,228.5

 

$

5,013.3

 

$

5,623.3

 

$

4,728.7

 

$

3,972.6

 

$

3,154.2

 

$

2,657.3

 

$

2,331.4

 

$

2,028.5

 

II. Cumulative net amount of liability paid through

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 year later

 

1,594.8

 

1,684.3

 

1,784.3

 

1,938.1

 

1,965.3

 

1,851.6

 

1,610.2

 

1,421.1

 

1,146.7

 

1,004.6

 

 

2 years later

 

2,621.3

 

2,732.5

 

2,908.5

 

3,065.1

 

3,153.0

 

3,039.5

 

2,764.2

 

2,274.5

 

1,833.5

 

 

 

 

 

3 years later

 

3,331.1

 

3,515.0

 

3,643.7

 

3,824.9

 

3,984.7

 

3,963.6

 

3,489.6

 

2,809.9

 

 

 

 

 

 

 

4 years later

 

3,872.2

 

4,028.8

 

4,061.7

 

4,330.3

 

4,596.8

 

4,529.5

 

3,941.0

 

 

 

 

 

 

 

 

 

5 years later

 

4,225.0

 

4,282.8

 

4,353.7

 

4,666.9

 

4,957.3

 

4,876.0

 

 

 

 

 

 

 

 

 

 

 

6 years later

 

4,398.1

 

4,464.4

 

4,555.9

 

4,887.2

 

5,194.4

 

 

 

 

 

 

 

 

 

 

 

 

 

7 years later

 

4,516.6

 

4,584.6

 

4,701.7

 

5,044.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8 years later

 

4,609.4

 

4,694.6

 

4,801.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9 years later

 

4,691.3

 

4,767.3

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10 years later

 

4,743.9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

III. Net liability re-estimated as of:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 year later

 

4,627.8

 

5,370.1

 

5,237.1

 

5,829.0

 

4,730.8

 

4,781.3

 

4,110.3

 

3,253.4

 

2,763.2

 

2,354.3

 

 

2 years later

 

5,476.0

 

5,424.7

 

5,916.1

 

4,942.0

 

4,824.2

 

5,059.4

 

4,227.0

 

3,380.4

 

2,765.5

 

 

 

 

 

3 years later

 

5,549.0

 

5,965.0

 

4,929.6

 

4,927.0

 

5,294.3

 

5,143.8

 

4,344.8

 

3,396.2

 

 

 

 

 

 

 

4 years later

 

5,924.8

 

4,980.5

 

4,857.5

 

5,221.8

 

5,336.0

 

5,222.8

 

4,365.1

 

 

 

 

 

 

 

 

 

5 years later

 

4,948.0

 

4,911.8

 

5,042.9

 

5,165.8

 

5,383.6

 

5,244.3

 

 

 

 

 

 

 

 

 

 

 

6 years later

 

4,900.4

 

5,069.3

 

4,929.1

 

5,197.2

 

5,385.8

 

 

 

 

 

 

 

 

 

 

 

 

 

7 years later

 

5,028.9

 

4,902.3

 

4,936.5

 

5,169.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8 years later

 

4,867.4

 

4,910.2

 

4,902.9

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9 years later

 

4,868.0

 

4,881.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10 years later

 

4,836.4

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IV. Cumulative net (deficiency)/ redundancy

 

$

(292.4

)

$

(384.5

)

$

325.6

 

$

(155.9

)

$

237.5

 

$

(515.6

)

$

(392.5

)

$

(242.0

)

$

(108.2

)

$

(22.9

)

 

Percent (deficient)/redundant

 

(6.4

)%

(8.6

)%

6.2

%

(3.1

)%

4.2

%

(10.9

)%

(9.9

)%

(7.7

)%

(4.1

)%

(1.0

)%

 

V. Reconciliation of net liability re-estimated as of the end of the latest re-estimation period (see I. above):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gross re-estimated liability

 

8,926.8

 

8,891.2

 

9,385.1

 

9,376.8

 

9,560.0

 

9,852.4

 

8,918.1

 

7,266.3

 

6,269.1

 

5,756.8

 

 

Less: gross re-estimated reinsurance recoverable

 

(4,090.4

)

(4,010.0

)

(4,482.2

)

(4,207.6

)

(4,174.2

)

(4,608.1

)

(4,553.0

)

(3,870.1

)

(3,503.6

)

(3,402.5

)

 

Net re-estimated liability

 

$

4,836.4

 

$

4,881.2

 

$

4,902.9

 

$

5,169.2

 

$

5,385.8

 

$

5,244.3

 

$

4,365.1

 

$

3,396.2

 

$

2,765.5

 

$

2,354.3

 

 

VI. Cumulative gross (deficiency)/redundancy

 

$

(3,122.4

)

$

(3,235.3

)

$

(2,515.6

)

$

(3,100.8

)

$

(2,684.6

)

$

(1,532.2

)

$

(1,411.1

)

$

(1,157.3

)

$

(940.9

)

$

(43.4

)

 

Percent (deficient)/redundant

 

(53.8

)%

(57.2

)%

(36.6

)%

(49.4

)%

(39.0

)%

(18.4

)%

(18.8

)%

(18.9

)%

(17.7

)%

(.8

)%

 

 
  
 OneBeacon Loss and LAE
Years Ended December 31,

 
($ in millions)

 June 1,
2001(1)

 
 2001
 2002
 2003
 2004
 2005
 2006
 2007
 
I. Liability for unpaid losses and LAE:                         
Gross balance(2) $7,011.1 $8,425.2 $7,630.5 $6,237.7 $5,465.3 $5,713.4 $5,108.2 $4,718.8 
Less: reins. recoverables on unpaid losses and LAE  (2,316.7) (3,609.7) (3,560.6) (2,980.4) (2,704.5) (3,382.0) (3,079.7) (2,850.6)
  
 
 
 
 
 
 
 
 
Net balance $4,694.4 $4,815.5 $4,069.9 $3,257.3 $2,760.8 $2,331.4 $2,028.5 $1,868.2 
  
 
 
 
 
 
 
 
 
II. Cumulative net amount of liability paid through:                         
 1 year later  1,288.1  1,891.3  1,656.6  1,463.5  1,239.3  1,004.6  769.8   
 2 years later  2,661.2  3,100.5  2,834.2  2,374.6  1,926.2  1,547.8       
 3 years later  3,715.3  4,039.6  3,598.1  2,910.0  2,356.9          
 4 years later  4,480.6  4,634.2  4,049.5  3,236.0             
 5 years later  4,950.8  4,980.6  4,317.8                
 6 years later  5,233.4  5,197.1                   
 7 years later  5,415.0                      
  
 
 
 
 
 
 
 
 
III. Net liability re-estimated as of:                         
 1 year later  4,759.0  4,872.9  4,216.7  3,357.4  2,855.8  2,354.3  1,980.2   
 2 years later  4,899.7  5,155.0  4,337.0  3,480.5  2,858.1  2,387.2       
 3 years later  5,348.4  5,244.0  4,453.3  3,496.3  2,945.3          
 4 years later  5,423.0  5,327.4  4,473.6  3,620.5             
 5 years later  5,489.2  5,348.9  4,605.5                
 6 years later  5,499.1  5,477.5                   
 7 years later  5,613.4                      
  
 
 
 
 
 
 
 
 
IV. Cumulative net (deficiency)/redundancy $(919.0)$(662.0)$(535.6)$(363.2)$(184.5)$(55.8)$48.3   

Percent (deficient)/redundant

 

 

(19.6

)%

 

(13.7

)%

 

(13.2

)%

 

(11.2

)%

 

(6.7

)%

 

(2.4

)%

 

2.4

%

 


 
  
 
 
 
 
 
 
 
 
V. Reconciliation of net liability re-estimated as of the end of the latest re-estimation period (see III. above):                         

Gross re-estimated liability

 

$

9,893.4

 

$

10,108.9

 

$

9,182.5

 

$

7,513.0

 

$

6,467.0

 

$

5,793.1

 

$

5,055.0

 

 


 

Less: gross re-estimated reinsurance recoverable

 

 

(4,280.0

)

 

(4,631.4

)

 

(4,577.0

)

 

(3,892.5

)

 

(3,521.7

)

 

(3,405.9

)

 

(3,074.8

)

 


 
  
 
 
 
 
 
 
 
 
Net re-estimated liability $5,613.4 $5,477.5 $4,605.5 $3,620.5 $2,945.3 $2,387.2 $1,980.2   
  
 
 
 
 
 
 
 
 
VI. Cumulative gross (deficiency)/redundancy $(2,882.3)$(1,683.7)$(1,552.0)$(1,275.3)$(1,001.7)$(79.7)$53.2   

Percent (deficient)/redundant

 

 

(41.1

)%

 

(20.0

)%

 

(20.3

)%

 

(20.4

)%

 

(18.3

)%

 

(1.4

)%

 

1.0

%

 


 
  
 
 
 
 
 
 
 
 

(1)In 1998, Commercial General Union (“CGU”), the predecessor company to OneBeacon, was formed as a result of a pooling of interests between Commercial Union Corporation and General Accident Corporation of America. All historical balances have been restated as though the companies had been merged throughout the periods presented.

(2)CGU acquired Houston General Insurance Company (“HGIC”) in 1998. In 2005, OneBeacon contributed HGIC to Houston General Insurance Exchange. Even though no longer owned by OneBeacon, all liabilities related to this entity continue to be shown from 1998 forward in this table because GAAP continues to require it to be consolidated by OneBeacon.

(3)This table reflects the effects of the NICO Cover and the GRC Cover as if they had been in effect for all periods presented.

(4)

OneBeacon became a wholly-owned subsidiary of White Mountains duringon June 1, 2001. Reserve development for the years ended 1995 through 2000 reflects development on reserves established before White Mountains consolidated OneBeacon’s results.

(5)OneBeacon acquired NFU in 1998 and sold it during 2005. All liabilities related to this entity are shown from 1998 through 2004.


The cumulative net (deficiency)/redundancy

(2)
Amounts reported in the table above reflects reinsurance recoverables recorded in connection with the OneBeacon Acquisition under the NICO Cover and the GRC Cover. See Note 4- “Third Party Reinsurance” in the accompanying Consolidated Financial Statementsdo not include adjustments for a description of the NICO Cover and the GRC Cover. These covers apply to losses incurred in 2000 and prior years. As a result, they have the effect of significantly increasing OneBeacon’s reinsurance recoverables in 2001 and 2002 and reducing its reserve deficiency for each of the years presented priorpurchase accounting related to the OneBeacon Acquisition by the amount of the reserves ceded at the time these covers were purchased. See “Asbestos and Environmental Reserves” under “CRITICAL ACCOUNTING ESTIMATES” in “Management’s Discussion and Analysis of Financial Condition and Results of Operations” for a discussion of the impact of the NICO Cover on OneBeacon’s net loss and LAE reserve position.

Acquisition.

The following table reconciles loss and LAE reserves determined on a Statutory basis to loss and LAE reserves determined in accordance with GAAP at December 31, as follows:

 

December 31,

 

 Year Ended December 31,
 

Millions

 

2006

 

2005

 

2004

 

 
Millions

2007
 2006
 2005
 

 

$

3,863.9

 

$

4,253.4

 

$

4,413.4

 

 $3,564.5 $3,863.9 $4,253.4 

Reinsurance recoverable on unpaid losses and LAE(1)

 

1,280.5

 

1,455.2

 

1,046.8

 

Reinsurance recoverable on unpaid losses and LAE(1) 1,190.9 1,280.5 1,455.2 

Reserves allocated from other segments, net

 

 

41.6

 

44.5

 

   41.6 

Purchase accounting

 

(270.5

)

(317.5

)

(361.5

)

 (238.5) (270.5) (317.5)

Other(2)

 

(36.2

)

(36.8

)

(29.2

)

Other(2) (36.6) (36.2) (36.8)
 
 
 
 

GAAP reserves

 

$

4,837.7

 

$5,395.9

 

$5,114.0

 

 $4,480.3 $4,837.7 $5,395.9 
 
 
 
 

(1)
Represents adjustments made to add back reinsurance recoverables included with the presentation of reserves under Statutory accounting.



(2)             Primarily represents
Represents long-term workers compensation loss and LAE reserve discount recorded of $36.2 million, $36.8 million and $36.1 million in 2006, 2005 and 2004 in excess of statutorily defined discount.


OneBeacon’sOneBeacon's Intermediate Holding Companies

OneBeacon’s        OneBeacon's intermediate holding companies include Fund American Enterprises Holdings, Inc. (“FAEH”("FAEH") and Fund American Companies, Inc. (“("Fund American”American"), both U.S.-domiciled companies, as well as various intermediate holding companies domiciled in the United States, Gibraltar, Luxembourg and Bermuda.

In May 2003, Fund American issued $700 million face value of senior unsecured debt through a public offering, at an issue price of 99.7% (the “Senior Notes”"Fund American Senior Notes"). The Fund American Senior Notes bear an annual interest rate of 5.9% until maturity in May 2013. Pursuant to the offering of the Senior Notes, White Mountains fullyprovides an irrevocable and unconditionally guaranteedunconditional guarantee as to the payment of principal and interest on the Senior Notes. Following the OneBeacon Offering, White Mountains continues to guarantee the payment of principal and interest on theFund American Senior Notes. OneBeacon Ltd. pays White Mountains a guarantee fee equal to 25 basis points per annum on the outstanding principal amount of the Fund American Senior Notes. If White Mountains’Mountains' voting interest in OneBeacon Ltd.’s's common shares ceases to represent more than 50% of all theirof OneBeacon Ltd.'s voting securities, OneBeacon Ltd. will seek to redeem, exchange or otherwise modify the senior notesFund American Senior Notes in order to fully and permanently eliminate White Mountains’Mountains' obligations under itsthe guarantee. In the event that White Mountains’Mountains' guarantee is not eliminated, the guarantee fee will increase over time up to a maximum of 450 basis points.

As part of the financing for the OneBeacon Acquisition, Berkshire Hathaway Inc. (“Berkshire”("Berkshire") invested a total of $300 million in cash, of which (1) $225 million was for the purchase of cumulative non-voting preferred stock of Fund American (the “Berkshire"Berkshire Preferred Stock”Stock"), which has a $300 million redemption value; and (2) $75 million was for the purchase of warrants to acquire 1,724,200 common shares of the Company. The Berkshire Preferred Stock is entitled to a dividend of no less than 2.35% per quarter and is mandatorily redeemable on May 31, 2008. During 2004, Berkshire exercised its warrants for $294 million in cash.

Also as part of the financing of the OneBeacon Acquisition, Zenith Insurance Company (“Zenith”) purchased $20 million in cumulative non-voting preferred stock of FAEH (the “Zenith"Zenith Preferred Stock”Stock"). The Zenith Preferred Stock is entitled to a dividendreceived dividends of no less than a 2.5% per quarter through June 30, 2007 and a dividend of no less than 3.5% per quarter thereafter. The Zenith Preferred Stock is mandatorily redeemable on May 31, 2011. At White Mountains’ option, which it expects to exercise,2007. OneBeacon redeemed the Zenith Preferred Stock may be redeemed on June 30, 2007.in the second quarter of 2007 for $20 million, its redemption value.

In connection with the OneBeacon Offering, Fund American and FAEH each established anOneBeacon created two irrevocable grantor trusts and funded them with assets sufficient to provide for the remaining dividend and redemption payments for the $20 million Zenith Preferred Stock and the $300 million Berkshire Preferred Stock. Assets held in one of the trusts were used to repay the Zenith Preferred Stock in June 2007, while assets held in the remaining trust will be used to economically defeaserepay the Berkshire Preferred Stock in May 2008. The creation and funding of this trust did not legally defease the Zenith Preferred Stock. Thepreferred stock or create any additional rights for the holders of the preferred stock, although the assets of eachin the trust remain segregated from OneBeacon's other general assets and are solely dedicated to the satisfaction ofnot available for any use other than the payment of dividends and redemption amounts on the $300 million


liquidation preference of the Berkshire Preferred Stock andStock. The assets held in trust remain subject to the $20 million liquidation preferenceclaims of Fund American's creditors in the Zenith Preferred Stock. Concurrently with the closing of the OneBeacon Offering,event that Fund American and FAEH funded their respective trust with cash that was used to purchase a portfolio of fixed maturity securities issued by the U.S. government or government-sponsored enterprises. The scheduled interest and principal payments of the portfolio of fixed maturity securities in each trust is sufficient to pay when due all amounts required under the terms of the Berkshire Preferred Stock and the Zenith Preferred Stock, including the mandatory redemption of the Berkshire Preferred Stock in May 2008 and the optional redemption of the Zenith Preferred Stock in June 2007.becomes insolvent.

In connection with the OneBeacon Offering, Fund American established a $75 million revolving credit facility that matures in November 2011 (the “FAC"Fund American Bank Facility”Facility"). As of December 31, 2006,2007, the FACFund American Bank Facility was undrawn.

WHITE MOUNTAINS RE

White Mountains Re is a global multi-line reinsurance organization that provides reinsurance for property, liability,casualty, accident & health, agriculture, aviation and space, and certain marineother exposures on a worldwide basis through its subsidiaries, Folksamerica, ReSirius International and Sirius International.WMRe (Bermuda). Folksamerica Re is a multi-line property and casualty reinsurer that provides reinsurance primarily in the United States, Canada, Continental Europe, Latin America, the Caribbean and Japan. Sirius International, which is the largest reinsurance company domiciled in Scandinavia based on gross written premiums, is a multi-line property and casualty reinsurer that provides reinsurance primarily in Europe, North America and Asia. During the third and fourth quarters of 2007, White Mountains Re increased the capital of WMRe (Bermuda), its class III Bermuda domiciled reinsurance company. WMRe (Bermuda)'s capital as of December 31, 2007 was $776 million.

WMRUS provides reinsurance underwriting advice and reinsurance portfolio analysis services to Sirius Folksamerica, Olympus Reinsurance Company Ltd. (“Olympus”)International and Helicon Reinsurance Company, Ltd. (“Helicon”). As White Mountains Re’s “center of excellence” for property catastrophe risk evaluation, its goal is to promote increased efficiencies, consistency in pricing and underwriting methodology, centralized management of catastrophe exposures and advanced catastrophe modeling, as well as value-added services for intermediaries and clients.Folksamerica. In exchange for these services, WMRUS receives fee income on the business it refers.

White Mountains Re has offices in Belgium, Bermuda, Chicago, Connecticut, Dublin,Copenhagen, Hamburg, London, Miami, New York, Singapore, Stockholm, Toronto and Zurich.


At December 31, 20062007 and 2005,2006, White Mountains Re had $7.3$7.4 billion and $8.5$7.3 billion of total assets and $1.9 billion and $2.1 billion and $1.9 billion of shareholder’sshareholder's equity, respectively. Folksamerica Re is rated “A-”"A-" (Excellent, the fourth highest of fifteen ratings) by A.M. Best and “A-”"A-" (Strong, the seventh highest of twenty-one ratings) by Standard & Poor’s.Poor's. Sirius International is rated “A”"A" (Excellent, the third highest of fifteen ratings) by A.M. Best and “A-”"A-" (Strong, the seventh highest of twenty-one ratings) by Standard & Poor’s.Poor's. WMRe (Bermuda) is rated "A-" (Excellent, the fourth highest of fifteen ratings) by A.M. Best.

White Mountains Re has completed several significant transactions involving interests in other insurance and reinsurance organizations. In most cases the transactions were acquisitions of entities that were owned by organizations that no longer considered them core businesses. Since 2000, White Mountains Re has completed the following significant transactionstransactions:


Reinsurance Overview

Reinsurance is an arrangement in which a reinsurance company (the “reinsurer”"reinsurer") agrees to indemnify an insurance company (the “ceding company”"ceding company") for all or a portion of the insurance risks underwritten by the ceding company under one or more insurance policies. Reinsurance can benefit a ceding company in a number of ways, including reducing exposure on individual risks, providing catastrophe protections from large or multiple losses, and assisting in maintaining acceptable capital levels as well as financial and operating leverage ratios. Reinsurance can also provide a ceding company with additional underwriting capacity by permitting it to accept larger risks and underwrite a greater number of risks without a commensuratecorresponding increase in its capital or surplus. Reinsurers may also purchase reinsurance, known as retrocessional reinsurance, to cover their own risks assumed from ceding companies. Reinsurance companies often enter into retrocessional agreements for many of the same reasons that ceding companies enter into reinsurance agreements.

Reinsurance is generally written on a treaty or facultative basis. Treaty reinsurance is an agreement whereby the reinsurer assumes a specified portion or category of risk under all qualifying policies issued by the ceding company during the term of the agreement, usually one year. When underwriting treaty reinsurance, the reinsurer does not evaluate each individual risk and generally accepts the original underwriting decisions made by the ceding company. Treaty reinsurance is typically written on either a quota shareproportional or excess of loss basis. A quota shareproportional reinsurance treaty is an arrangement whereby a reinsurer assumes a predetermined proportional share of the premiums and losses generated on specified business. An excess of loss treaty is an arrangement whereby a reinsurer assumes losses that exceed a specific retention of loss by the ceding company. Facultative reinsurance, on the other hand, is underwritten on a risk-by-risk basis, which allows the reinsurer to determine pricing for each exposure.

        White Mountains Re writes both treaty and facultative reinsurance, as well as direct business. The majority of White Mountains Re premiums are derived from proportional and excess of loss reinsurance contracts, which in 2007 amounted to 43% and 47%, respectively, of its total net written premiums, while primary direct business represented 10% of total net written premiums.

A significant period of time normally elapses between the receipt of reinsurance premiums and the payment of reinsurance claims. While premiums are generally paid to the reinsurer upon inception of coverage, the claims process is delayed and generally begins upon the occurrence of an event causing an insured loss followed by: (1) the reporting of the loss by the insured to its broker or agent; (2) the reporting by the broker or agent to the ceding company; (2)(3) the reporting of the loss by the ceding company to its reinsurance intermediary or agent; (4) the reporting by the reinsurance intermediary or agent to the reinsurer; (3)(5) the ceding company’scompany's adjustment and payment of the loss; and (4)(6) the payment to the ceding company by the reinsurer. During this time, reinsurers generate investment income on premium receipts, consisting primarily of interest earned on fixed maturity investments and dividends earned on equity securities. The period of time between the receipt of premiums and the payment of claims is typically longer for a reinsurer than for a primary insurer. This delayHowever, this difference is less significant for companiesreinsurers like White Mountains Re that write large volumes of short-tailed coverage, or coverage where information about the insured claims is known relatively quickly after the coverage period, such as property.property reinsurance.


Classes of Business

        The following table shows White Mountains Re writes three main classes of reinsurance: property, liability and specialty. White Mountains Re’sRe's net written premiums by class of business for the years ended December 31, 2007, 2006 2005 and 20042005 were as follows:

Business class

 

Year Ended December 31,

 

Millions

 

2006

 

2005

 

2004

 

Property

 

$

572.6

 

$

567.4

 

$

432.1

 

Liability

 

293.1

 

403.4

 

524.5

 

Specialty(1)

 

424.2

 

333.3

 

289.7

 

Total

 

$

1,289.9

 

$

1,304.1

 

$

1,246.3

 

 
 Year Ended December 31,
Business class
Millions

 2007
 2006
 2005
Property catastrophe excess $188.4 $195.0 $178.6
Property other  307.5  313.6  190.6
Casualty  175.7  278.6  375.0
Accident & health  178.8  229.1  169.7
Agriculture  69.0  50.4  131.6
Aviation and space  55.9  55.3  31.4
Other(1)  120.4  167.9  227.2
  
 
 
 Total $1,095.7 $1,289.9 $1,304.1
  
 
 

(1)             Includes primarily accident & health,
Primarily consists of marine and aviationcredit and bonding business.

Also includes $39 million and $87 million in 2006 and 2005, respectively, of net written premiums at Sirius America, which White Mountains Re sold in August of 2006.

The majority        A description of White Mountains Re’s premiumsRe's classes of business and related lines of business follows:

        Property catastrophe excess of loss treaties cover losses from catastrophic events. White Mountains Re writes a worldwide portfolio with the largest concentration of exposure in Europe, and seeks to set prices and terms on treaties wherever possible. The current U.S. book has a national focus supporting the lower and/or middle layers of large capacity programs. The exposures written in the international portfolio are derived from reinsurance contracts bothdiversified across many countries and regions.

        White Mountains Re is a leader in the broker market for property treaties written on a quota shareproportional and an excess of loss basis whichand writes a limited number of large transactions with carefully chosen partners. In the United States, White Mountains Re's focus is primarily on proportional treaties in 2006 amounted to 47%the excess & surplus lines segment of this market. The excess book contains similar excess & surplus exposures, complemented by a smaller amount of large national company and 38%, respectively,small regional company standard lines of its total netbusiness. The international book primarily consists of excess of loss, facultative and proportional treaty business in Europe. Over half of this business class is written premiums, while primary business represented 15% of total net written premium.on a proportional basis.

        White Mountains Re received no morewrites proportional and excess of loss reinsurance on commercial and non-standard automobile liability, general liability, professional liability, umbrella and workers compensation lines. Participation on longer tail business is mostly on a proportional basis, rather than 10%excess of its gross reinsurance premiums from any individual ceding company. Duringloss.

        White Mountains Re's accident & health business is composed of three major lines of business. In the years ended December 31, 2006, 2005 and 2004,largest line of business, White Mountains Re received approximately 52%, 40%is a surplus lines insurer of international medical expenses written through International Medical Group, which is the agent writing on White Mountains Re's behalf. The second major line of business comprises proportional treaties covering employer medical stop loss for per person (specific) and 51%, respectively,per employer (aggregate) exposures. The third major line of business comprises medical, health and personal accident coverages written on an excess treaty and facultative basis.

        White Mountains Re primarily provides proportional coverage to companies writing U.S. government-sponsored Multi-Peril Crop Insurance ("MPCI"). White Mountains Re's participation is net of the government's stop loss reinsurance protection. White Mountains Re also provides coverage for crop-hail and certain named perils when bundled with MPCI business.

        Aviation insurance covers loss of or damage to an aircraft and the aircraft operations' liability to passengers, cargo and mail as well as to third parties. Additionally, liability arising out of non-aircraft operations such as hangars, airports and aircraft products can be covered. Space insurance covers loss of or damage to a satellite during launch and in orbit.

        Included in this class is marine, credit and contingency business written by Sirius International, proportional marine business written on a direct basis, a discontinued marine book and the run-off exposures from various acquisitions. White Mountains Re's A&E exposures are from the run-off business acquired by Folksamerica.

Bermuda Advisory Services

        White Mountains Re has been in the reinsurance advisory business since January 2002, through its grossBermuda-based subsidiary, WMRUS. WMRUS provides reinsurance written premiums from three major, third-partyunderwriting advice and reinsurance intermediaries as follows: (1) AON Re — 24%, 18%portfolio analysis services to Sirius International and 22%, respectively; (2) Benfield — 16%, 14% and 16%, respectively; and (3) Guy Carpenter — 12%, 8% and 13%, respectively.Folksamerica. In exchange for these services, WMRUS receives fee income on the business it refers.


Geographic Concentration

        The following table shows White Mountains Re’sRe's net written premiums by geographic region for the years ended December 31, 2007, 2006 2005 and 2004 were as follows:2005:

 
 Year Ended December 31,
Geographic region
Millions

 2007
 2006
 2005
United States $696.7 $864.7 $878.9
Europe  306.8  314.4  315.6
Canada, the Caribbean and Latin America  21.1  37.8  47.2
Asia and Other  71.1  73.0  62.4
  
 
 
 Total $1,095.7 $1,289.9 $1,304.1
  
 
 

Marketing

        

Geographic region

 

Year Ended December 31,

 

Millions

 

2006

 

2005

 

2004

 

United States

 

$

864.7

 

$

878.9

 

$

846.7

 

Europe

 

314.4

 

315.6

 

303.5

 

Canada, the Caribbean and Latin America

 

37.8

 

47.2

 

42.4

 

Asia and Other

 

73.0

 

62.4

 

53.7

 

Total

 

$

1,289.9

 

$

1,304.1

 

$

1,246.3

 

Marketing

White Mountains Re which conducts its reinsurance business through Folksamerica Re and Sirius International, obtains most of its reinsurance business from reinsurance intermediaries. Business submissions come from intermediaries that represent the ceding company or through submissions recommended by WMRUS.company. The process of placing an intermediary reinsurance program typically begins when a ceding company enlists the aid of a reinsurance intermediary in structuring a reinsurance program. The ceding company and the reinsurance intermediary will often consult with one or more lead reinsurers as to the pricing and contract terms for the reinsurance protection being sought. Once the ceding company has approved the terms quoted by the lead reinsurer, the reinsurance intermediary will offer participation to qualified reinsurers until the program is fully subscribed. White Mountains Re considers both the reinsurance intermediary and the ceding company to be its clients in any placement and as suchplacement. White Mountains Re has developed strong business relationships over a long period of time with the management of many of its ceding companies.


White Mountains Re pays ceding companies a ceding commission under most quota shareproportional reinsurance treaties and some excess of loss reinsurance treaties. The ceding commission is generally based on the ceding company’scompany's cost of acquiring and administering the business being reinsured (e.g., commissions, premium taxes and certain miscellaneous expenses). Additionally, White Mountains Re pays reinsurance intermediaries commissions based on negotiated percentages of the premium they produce. The reinsurance intermediaries’intermediaries' commissions constitute a significant portion of White Mountains Re’sRe's total acquisition costs.

        During the years ended December 31, 2007, 2006 and 2005, White Mountains Re received no more than 10% of its gross written premiums from any individual ceding company. During 2007, 2006 and 2005, White Mountains Re received approximately 63%, 52% and 40%, respectively, of its gross reinsurance premiums written from three major, third-party reinsurance intermediaries as detailed in the following table:

 
 Year Ended December 31,
 
 
 2007
 2006
 2005
 
AON Re 33%24%18%
Guy Carpenter 17 12 8 
Benfield 13 16 14 
  
 
 
 
  63%52%40%
  
 
 
 

Underwriting and Pricing

White Mountains Re has a long history of maintaining a disciplined underwriting strategy which, while considering overall exposure, focuses on writing more business when market terms and conditions are favorable and reducing business volume during soft markets when terms and conditions become less favorable. White Mountains Re also employs a multi-line approach, offering clients a wide range of reinsurance products to satisfy their risk management needs.

White Mountains Re derives its business from a broad spectrum of ceding companies, including national, regional, specialty and excess and surplus lines writers, both in the United States and internationally. White Mountains Re’sRe's underwriters and pricing actuaries perform reviews of the underwriting, pricing, and general underwriting controls of potential ceding companies before quoting contract terms for its reinsurance products. White


Mountains Re prices its products by assessing the desired return on the expected capital needed to write a given contract and on the expected underwriting results of the contract. White Mountains Re’sRe's pricing indications are based on a number of underwriting factors including historical results, analysis of exposure and estimates of future loss costs, a review of other programs displaying similar exposure characteristics and the ceding company’scompany's underwriting and claims experience. White Mountains Re’sRe's underwriters, actuaries and claims personnel perform audits to monitor certain ceding companies’companies' risk selection pricing and claim handling discipline.pricing. Additionally, White Mountains Re’s financeRe's staff reviews the financial stability and creditworthiness of certain ceding companies. Such reviews provide important input to support underwriting decisions.

White Mountains Re and other reinsurance companies have sought to mitigate the risks associated with future terrorist attacks in a similar manner as primary insurers. Reinsurers do not have the stringent regulations with respect to contract terms and policy exclusions that are generally imposed on primary insurers. For example, the Terrorism Act is not applicable to reinsurers. As a result, terrorism exclusions on reinsurance contracts are dictated by the marketplace. White Mountains Re evaluates terrorism exposure from its ceding companies and applies exclusions as it deems appropriate.appropriate and as are permitted by market conditions. Reinsurance on commercial risks written by White Mountains Re subsequent to the Attacks generally contains clauses that exclude acts of terrorism certified under the Terrorism Act. Reinsurance on personal risks written by White Mountains Re subsequent to the Attacks generally contains exclusions related to nuclear, biological and chemical attacks.

Following the 2004 and 2005 catastrophe activity,        White Mountains Re enhanced its catastrophe underwriting process by significantly raising its provision for demand surge (i.e., the rise in costs from shortages of material and labor in regions affected by a catastrophe) and by employing a more conservative methodology to evaluate exposure than those that result from standard actuarial and modeling techniques. Additionally, Folksamerica Re non-renewed its excess off-shore energy and marine business in the Gulf of Mexico effective January 1, 2006.

Claims Management

White Mountains Re maintains a staff of experienced reinsurance claim specialists that workworks closely with reinsurance intermediaries to obtain specific claims information from its customers.ceding companies. White Mountains Re’sRe's claims staff also regularly perform selective on-site claim reviews to assess certain reinsured’sreinsureds' claim handling abilityabilities and reservingreserve techniques. In addition, White Mountains Re’sRe's claims specialists review loss information provided by the reinsuredreinsureds for adequacy.adequacy and accuracy. The results of these claim reviews are shared with the underwriters and actuaries to assist them in pricing products and establishing loss reserves.

White Mountains Re also uses TPAs for certain other claims, including claims arising from certain of White Mountains Re's accident & health business and run-off claims related to certain acquisitions.acquired companies. White Mountains Re’sRe's claims staff performs on-site claim audits of certain TPAs to ensure the propriety of the controls and processes over claims serviced by the TPA.TPAs.


Competition

The worldwide reinsurance market is highly competitive. Competition in the types ofworldwide reinsurance that White Mountains Re underwritesmarket is influenced by a variety of factors, including price charged and other terms and conditions offered, financial strength ratings, prior history and relationships, as well as expertise and the speed at which the company has historically paid claims.

White Mountains Re competes for reinsurance business in the United States, Bermuda, Europe, and other international reinsurance markets with numerous global competitors. White Mountains Re’sRe's competitors include reinsurance companies, and underwriting syndicates at Lloyd’s.Lloyd's of London. Some of the companies that White Mountains Re competes directly with include ACE Limited, Arch Capital Group Ltd., Endurance Specialty Holdings Ltd., Everest Re Group, Ltd., General Reinsurance Corporation, Hannover Ruckversicherung AG, Lloyd’sLloyd's of London, Montpelier Re Holdings, Ltd. ("Montpelier Re"), Munich Re Group, Partner RePartnerRe Ltd., Platinum Underwriters Holdings Ltd., Renaissance Re Holdings Ltd., Swiss Re Group, Transatlantic Holdings, Inc. and XL Capital Ltd.

Catastrophe Risk Management

White Mountains Re has exposure to losses caused by hurricanes, earthquakes, tornadoes, winter storms, windstorms, floods, tsunamis, terrorist acts and other catastrophic events. In the normal course of business, White Mountains Re regularly manages its concentration of exposures to catastrophic events, primarily by limiting concentrations of exposure to what it deems acceptable levels and, if necessary, purchasing reinsurance. In addition,


White Mountains Re seeks to limit loss that might arise from acts of terrorism exclusions in its reinsurance contracts by exclusionary provisions, where applicable. White Mountains Re also uses third party global catastrophe models thatas well as its own proprietary models to calculate its expected probable maximum loss (“PML”("PML") from several possible catastrophes.various natural catastrophic scenarios. White Mountains Re believes that its largest natural catastrophecatastrophic exposures, net of reinsurance and based on a 250-year PML single event scenario, are European winter storm,storms, United States Gulf Coast windstorms (i.e., Florida to Texas), California earthquake,earthquakes, United States Atlantic Coast windstormwindstorms (i.e., DelawareMassachusetts to Florida) and, United States Gulf Coast windstorm (i.e., Florida to Texas).a lesser extent, Japanese windstorms and earthquakes.

White Mountains Re’sRe currently monitors and prices its property catastrophe pricing models are based on third partycontracts using third-party software models and internally developed models.models as well as other methods. For contracts that White Mountains Re determines to have exposure to natural catastrophic perils, it models and assesses each property contractexposure and uses the results in its underwriting process to ensure that the contracts it writes have an appropriate charge for catastrophethe exposure.

Catastrophe exposure modeling is inherently uncertain due to process risk (the probability and magnitude of the underlying event, e.g. earthquake) and parameter risk (the probability of making inaccurate modelingmodel assumptions). In particular, geographic and policy coverage data on the primary policies reinsured by White Mountains Re is essential. Accordingly, White Mountains Re’sRe's ability to accurately predict its catastrophe exposure is dependent on the quality and accuracy of data obtained from its clients.

Additionally, catastrophe modeling is dependent upon several broad economic and scientific assumptions, such as storm surge (i.e., the(the water that is pushed toward the shore by the force of a windstorm), demand surge (the localized increase in prices of goods and services that often follow a catastrophe) and zone density (i.e., the(the percentage of insured perils that would be affected in a region by a catastrophe). Third party modeling software also does not encompass all territories in which White Mountains Re writes business.

While catastrophe models can be effective tools in assisting with the pricing and managing of property catastrophe exposures,modeling is an important tool, White Mountains Re does not believe that theyit can be strictly relied upon to measure its exposure to natural catastrophic risk. For example, the losses arising from Hurricane Katrina for both the industry and White Mountains Re and the industry were substantially in excess of losses previously predicted by third party models from such an event,event. This was due to issues such as inadequate storm surge and demand surge assumptions in the models, as well as flood due to theflooding from levees breaking, which was not fully contemplated in these models. Correspondingly, White Mountains Re assesses catastrophe risk by monitoring total limits exposed to a catastrophe event in key zones.

        The following table provides an estimate of White Mountains Re's three largest PML zones at January 31, 2008. White Mountains Re has enhancedmuch less catastrophic loss exposure to other zones, such as Northeast wind and Japanese windstorm and earthquake risk.

 
  
 White Mountains Re Financial Impact
 
($ in millions)
 Modeled
Industry Loss

 Gross
 Net After
Reinstatement

 Net
After Tax

 Net After Tax
as % of
GAAP Capital

 
  1 in 250 year event
 
European Winter Storm $67,124 $756 $480 $394 14%
Florida Windstorm  160,758  408  353  285 10%
California Earthquake  65,369  365  331  260 9%

 

 

1 in 10,000 year event

 
European Winter Storm $167,756 $1,175 $736 $593 20%
Florida Windstorm  391,937  596  521  419 14%
California Earthquake  226,876  485  435  345 12%

        During 2007, to better manage its operations in Bermudaaggregate exposure to advisevery large catastrophic events, White Mountains Re introduced an underwriting limit to the groupmaximum net financial impact ("NFI") it would suffer in the underwriting, pricingworst aggregate loss year modeled in third party software (i.e., the 10,000 year global annual aggregate PML). The calculation of the NFI begins with the 10,000 year global annual aggregate PML and managingtakes account of catastrophe risks assumed.reinstatement premiums, reinsurance recoverables net of uncollectible balances, and tax benefits net of valuation allowances. This amount is deducted from the most recently forecasted comprehensive net income for the year, to arrive at the NFI. The NFI does not include the potential impact of the loss events on White Mountains Re's investment portfolio.

        For 2008, the NFI limit has been set at $650 million, which is approximately 22% of White Mountains Re's total GAAP capital. At January 1, 2008, White Mountains Re believes that it was under the $650 million limit. Actual losses incurred by White Mountains Re resulting from any particular catastrophic event may be substantially different than modeled losses from such event.


Reinsurance Protection

White Mountains Re’sRe generally enters into retrocessional arrangements in order to reduce its potential loss exposure to any large or series of smaller catastrophe events, stabilize financial ratios and obtain additional underwriting capacity where appropriate. White Mountains Re has several retrocessional arrangements, most of which are with highly rated reinsurers. White Mountains Re also has in place various retrocessions on specified property contracts White Mountains Re has assumed.

        For the three years ended December 31, 2007, the majority of White Mountains Re's reinsurance protection iswas provided through Folksamerica Re’sFolksamerica's quota share retrocessional arrangements with Olympus Reinsurance Company, Ltd. ("Olympus") and Helicon and throughHelicon. Sirius International also purchases excess of loss protection purchased by Sirius to cover Sirius’its property catastrophe and aviation exposures. These reinsurance protections arewere designed to increase White Mountains Re’sRe's underwriting capacity, where appropriate, and to reduce its potential loss exposure to any large or series of smaller catastrophe events.

20




Under White Mountains Re’s 2006 arrangements with Folksamerica ceded 35% of its 2007 underwriting year short-tailed excess of loss business, mainly property, to Olympus and Helicon, with each sharing approximately 55% and 45%, respectively. Folksamerica Re ceded 35% of its 2006 underwriting year short-tailed excess of loss business, mainly property, and marine.to Olympus and Helicon, sharedwith each sharing approximately 56% and 44%, respectively, in the 2006 underwriting year cession. Under White Mountains Re’s 2005 arrangements with Olympus,respectively. Folksamerica Re ceded up to 75% of substantially all of its 2005 underwriting year short-tailed excess of loss business, mainly property and marine, and 50% of its 2005 underwriting year proportional property business and Sirius International ceded 25% of its 2005 underwriting year short-tailed proportional and excess of loss business.business to Olympus. White Mountains Re received fee income based on premiums ceded to Olympus and Helicon. During 2007,

        White Mountains Re's reinsurance recoverable balances due from Olympus are fully collateralized in the form of assets in a trust, funds held and offsetting balances payable for all recoverable amounts recorded as of December 31, 2007. Folksamerica Re will continue to cede 35% of its 2007 underwriting year short-tailed excess of loss business, mainly property and marine,did not renew the quota share arrangements with Olympus and Helicon sharing approximately 55%for 2008. Olympus will continue to be responsible for the payment of losses on exposures that have been ceded to it and 45%, respectively, in 2007.

will continue to earn premiums related primarily to the run-off of underwriting year 2007 business. White Mountains Re is also entitled to receive a profit commission with respect to the profitability of the business placed with Olympus and Helicon. However, this profit commission arrangement is subject to a deficit carryforward whereby net underwriting losses from one year carryover to future years. As a result of hurricanes Katrina, Rita and Wilma and several other significant loss events during 2005, Olympus recorded substantial net underwriting losses. Accordingly,acquired Helicon on January 7, 2008.

        At December 31, 2007, White Mountains Re did not record a profit commission from Olympus or Helicon during 2006 or 2005had $36 million of reinsurance recoverables on paid losses and does not expect to record profit commissions from Olympus or Helicon for the foreseeable future.

Reinsurance$806 million of reinsurance recoverables on unpaid losses that will become recoverable if claims are paid in accordance with current reserve estimates. Because retrocessional reinsurance contracts do not relieve White Mountains Re of its obligation to itsWhite Mountains Re's ceding companies. Therefore,companies, the collectibility of balances due from its retrocessional reinsurersretrocessionaires is critical to its financial strength. White Mountains Re’sRe monitors the financial strength.strength and ratings of its retrocessionaires on an ongoing basis. SeeNote 4 - “Third4—"Third Party Reinsurance”Reinsurance" to the accompanyingAccompanying Consolidated Financial Statements for a discussion of White Mountains Re’sRe's top reinsurers.

Loss and Loss Adjustment Expense Reserves

White Mountains Re establishes reserves that are estimates of future amounts needed to pay claims and related expenses for insured events that have already occurred. See "CRITICAL ACCOUNTING ESTIMATES”ESTIMATES" in “Management’s"Management's Discussion and Analysis of Financial Condition and Results of Operations”Operations" for a full discussion regarding White Mountains Re’sRe's loss reserving process.

The following information presents (1) White Mountains Re’sRe's reserve development over the preceding ten years and (2) a reconciliation of reserves on a regulatory basis to reserves determined in accordance with GAAP, each as prescribed by Securities Act Industry Guide No. 6.

Section I of the 10 year table shows the estimated liability that was recorded at the end of each of the indicated years for all current and prior accident year unpaid loss and LAE. The liability represents the estimated amount of loss and LAE for claims that were unpaid at the balance sheet date, including IBNR reserves. In accordance with GAAP, the liability for unpaid loss and LAE is recorded in the balance sheet gross of the effects of reinsurance with an estimate of reinsurance recoverables arising from reinsurance contracts reported separately as an asset. The net balance represents the estimated amount of unpaid loss and LAE outstanding as of the balance sheet date, reduced by estimates of amounts recoverable under reinsurance contracts.


Section II shows the cumulative amount of net loss and LAE paid relating to recorded liabilities as of the end of each succeeding year. Section III shows the re-estimated amount of the previously recorded net liability as of the end of each succeeding year. Estimates of the liability for unpaid loss and LAE are increased or decreased as payments are made and more information regarding individual claims and trends, such as overall frequency and severity patterns, becomes known. Section IV shows the cumulative net (deficiency)/redundancy representing the aggregate change in the liability frombetween original balance sheet dates and the re-estimated liability through December 31, 2006.2007. Section V shows the re-estimated gross liability and re-estimated reinsurance recoverables through December 31, 2006.2007. Section VI shows the cumulative gross (deficiency)/redundancy representing the aggregate change in the liability from original balance sheet dates and the re-estimated liability through December 31, 2006.2007.


The following table includes the complete loss development history for all periods presented for all companies acquired by White Mountains Re as if the companies had been combined from their inception.

This table includes development on reserves reported by acquired companies before those companies were acquired by White Mountains Re

White Mountains Re Loss and LAE
 
 White Mountains Re Loss and LAE(1)
Years Ended December 31,

 
($ in millions)

 
 1997
 1998
 1999
 2000
 2001
 2002
 2003
 2004
 2005
 2006
 2007
 
I. Liability for unpaid losses and LAE:                                  
Gross balance $739.1 $723.2 $768.0 $1,479.9 $1,581.4 $1,588.4 $1,699.4 $3,864.3 $4,308.8 $3,708.8 $3,252.3 
Less: reins. recoverables on unpaid losses and LAE  (124.0) (130.2) (137.3) (702.8) (879.5) (809.8) (741.1) (1,149.8) (1,633.6) (1,142.5) (806.4)
  
 
 
 
 
 
 
 
 
 
 
 
Net balance $615.1 $593.0 $630.7 $777.1 $701.9 $778.6 $958.3 $2,714.5 $2,675.2 $2,566.3 $2,445.9 
  
 
 
 
 
 
 
 
 
 
 
 
II. Cumulative net amount of liability paid through:                                  
 1 year later  155.2  161.3  53.3  350.1  230.6  250.7  321.5  941.0  949.4  721.7   
 2 years later  267.7  211.4  290.7  492.2  391.2  420.8  521.8  1,369.4  1,442.9       
 3 years later  329.0  364.6  500.1  596.9  501.4  559.1  710.8  1,684.9          
 4 years later  418.4  544.0  589.3  666.7  602.7  690.9  834.7             
 5 years later  576.3  604.8  678.2  735.2  739.3  804.5                
 6 years later  619.1  669.5  728.6  833.9  830.6                   
 7 years later  667.5  721.8  806.4  899.9                      
 8 years later  706.2  778.3  869.0                         
 9 years later  746.5  832.6                            
 10 years later  787.6                               
  
 
 
 
 
 
 
 
 
 
 
 
III. Net liability re-estimated as of:                                  
 1 year later  618.3  602.3  648.8  782.7  704.9  828.9  984.9  2,771.9  2,893.2  2,575.4   
 2 years later  629.4  611.3  671.9  767.7  758.7  856.9  1,059.6  2,802.9  3,032.5       
 3 years later  632.6  615.9  693.8  815.7  800.5  929.8  1,148.1  2,917.9          
 4 years later  626.9  631.5  751.1  850.8  872.2  1,023.8  1,270.2             
 5 years later  629.7  677.0  778.8  918.5  968.4  1,138.6                
 6 years later  667.7  694.8  857.0  998.2  1,077.8                   
 7 years later  678.0  768.7  916.6  1,097.7                      
 8 years later  747.9  807.8  1,016.5                         
 9 years later  769.4  900.4                            
 10 years later  856.9                               
  
 
 
 
 
 
 
 
 
 
 
 
 
 White Mountains Re Loss and LAE(1)
Years Ended December 31,

($ in millions)

 1997
 1998
 1999
 2000
 2001
 2002
 2003
 2004
 2005
 2006
 2007
IV. Cumulative net (deficiency)/redundancy $(241.8)$(307.4)$(385.8)$(320.6)$(375.9)$(360.0)$(311.9)$(184.7)$(357.3)(2)$(9.1)
Percent (deficient)/redundant  (39.3)% (51.8)% (61.2)% (41.3)% (53.6)% (46.2)% (32.5)% (6.8)% (13.4)% (.4)%
  
 
 
 
 
 
 
 
 
 
 
V. Reconciliation of net liability re-estimated as of the end of the latest re-estimation period (see III. above):                                
Gross re-estimated liability $1,188.8 $1,290.7 $1,323.1 $2,004.8 $2,093.5 $2,010.9 $2,087.9 $4,270.6 $4,897.7 $3,765.1 
Less: gross re-estimated reinsurance recoverable  (331.9) (390.3) (306.6) (907.1) (1,015.7) (872.3) (817.7) (1,352.7) (1,865.2) (1,189.7)
  
 
 
 
 
 
 
 
 
 
 
Net re-estimated liability $856.9 $900.4 $1,016.5 $1,097.7 $1,077.8 $1,138.6 $1,270.2 $2,917.9 $3,032.5 $2,575.4 
  
 
 
 
 
 
 
 
 
 
 
VI. Cumulative gross deficiency $(449.7)$(567.5)$(555.1)$(524.9)$(512.1)$(422.5)$(388.5)$(406.3)$(588.9)$(56.3)
Percent deficient  (60.8)% (78.5)% (72.3)% (35.5)% (32.4)% (26.6)% (22.9)% (10.5)% (13.7)% (1.5)%
  
 
 
 
 
 
 
 
 
 
 


(1), (2), (3), (4), (5)

Years Ended December 31,

($ in millions)

 

1996

 

1997

 

1998

 

1999

 

2000

 

2001

 

2002

 

2003

 

2004

 

2005

 

2006

 

I. Liability for unpaid losses and LAE:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gross balance

 

$

2,364.1

 

$

2,303.5

 

$

2,439.7

 

$

2,278.0

 

$

3,151.2

 

$

3,865.2

 

$

3,819.4

 

$

3,716.3

 

$

3,864.3

 

$

4,308.8

 

$

3,708.8

 

Less: reins. recoverables on unpaid losses and LAE

 

(466.5

)

(457.2

)

(535.8

)

(634.2

)

(1,137.9

)

(1,317.0

)

(1,209.8

)

(1,095.2

)

(1,149.8

)

(1,633.6

)

(1,142.4

)

Net balance

 

$

1,897.6

 

$

1,846.3

 

$

1,903.9

 

$

1,643.8

 

$

2,013.3

 

$

2,548.2

 

$

2,609.6

 

$

2,621.1

 

$

2,714.5

 

$

2,675.2

 

$

2,566.4

 

II. Cumulative net amount of liability paid through:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 year later

 

496.5

 

491.6

 

520.0

 

427.8

 

686.1

 

725.7

 

977.3

 

702.7

 

941.0

 

949.4

 

 

2 years later

 

760.2

 

809.6

 

727.0

 

865.8

 

1,164.0

 

1,421.4

 

1,370.9

 

1,271.8

 

1,369.4

 

 

 

 

 

3 years later

 

986.7

 

963.7

 

993.3

 

1,148.0

 

1,725.3

 

1,710.9

 

1,840.2

 

1,547.5

 

 

 

 

 

 

 

4 years later

 

1,135.8

 

1,117.3

 

1,166.7

 

1,519.6

 

1,930.6

 

2,108.9

 

2,037.2

 

 

 

 

 

 

 

 

 

5 years later

 

1,246.2

 

1,230.5

 

1,365.8

 

1,662.0

 

2,236.6

 

2,300.8

 

 

 

 

 

 

 

 

 

 

 

6 years later

 

1,338.8

 

1,303.0

 

1,470.2

 

1,875.6

 

2,385.5

 

 

 

 

 

 

 

 

 

 

 

 

 

7 years later

 

1,391.5

 

1,369.6

 

1,563.4

 

1,996.7

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8 years later

 

1,443.5

 

1,430.0

 

1,627.8

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9 years later

 

1,488.1

 

1,478.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10 years later

 

1,522.0

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

III. Net liability re-estimated as of:

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

1 year later

 

1,911.1

 

1,828.4

 

1,974.4

 

1,904.1

 

2,479.5

 

2,601.2

 

2,803.4

 

2,642.6

 

2,771.9

 

2,893.2

 

 

2 years later

 

1,844.3

 

1,864.0

 

2,011.3

 

2,166.1

 

2,488.5

 

2,827.8

 

2,836.8

 

2,704.5

 

2,802.9

 

 

 

 

 

3 years later

 

1,885.5

 

1,840.2

 

1,988.8

 

2,172.1

 

2,732.1

 

2,891.1

 

2,911.7

 

2,742.8

 

 

 

 

 

 

 

4 years later

 

1,882.7

 

1,813.7

 

1,989.3

 

2,367.1

 

2,782.6

 

2,969.3

 

2,969.6

 

 

 

 

 

 

 

 

 

5 years later

 

1,850.3

 

1,797.0

 

2,042.7

 

2,386.7

 

2,898.6

 

3,033.8

 

 

 

 

 

 

 

 

 

 

 

6 years later

 

1,822.8

 

1,816.3

 

2,057.1

 

2,446.9

 

2,958.7

 

 

 

 

 

 

 

 

 

 

 

 

 

7 years later

 

1,834.7

 

1,822.6

 

2,120.6

 

2,479.2

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

8 years later

 

1,838.7

 

1,884.5

 

2,136.1

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

9 years later

 

1,895.9

 

1,886.6

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

10 years later

 

1,883.5

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

IV. Cumulative net (deficiency)/ redundancy

 

$

14.1

 

$

(40.3

)

$

(232.2

)

$

(835.4

)

$

(945.4

)

$

(485.6

)

$

(360.0

)

$

(121.7

)

$

(88.4

)

$

(218.0

)

 

Percent (deficient)/ redundant

 

0.7

%

(2.2

)%

(12.2

)%

(50.8

)%

(47.0

)%

(19.1

)%

(13.8

)%

(4.6

)%

(3.3

)%

(8.1

)%

 

V. Reconciliation of net liability re-estimated as of the end of the latest re-estimation period (see III. above):

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

 

Gross re-estimated liability

 

2,433.5

 

2,453.8

 

2,813.7

 

3,211.0

 

4,387.0

 

4,604.2

 

4,353.2

 

3,982.6

 

4,094.3

 

4,665.5

 

 

Less: gross re-estimated reinsurance recoverable

 

(550.0

)

(567.2

)

(677.6

)

(731.8

)

(1,428.3

)

(1,570.4

)

(1,383.6

)

(1,239.8

)

(1,291.4

)

(1,772.3

)

 

Net re-estimated liability

 

$

1,883.5

 

$

1,886.6

 

$

2,136.1

 

$

2,479.2

 

$

2,958.7

 

$

3,033.8

 

$

2,969.6

 

$

2,742.8

 

$

2,802.9

 

$

2,893.2

 

 

VI. Cumulative gross (deficiency)/redundancy

 

$

(69.4

)

$

(150.3

)

$

(374.0

)

$

(933.0

)

$

(1,235.8

)

$

(739.0

)

$

(533.8

)

$

(266.3

)

$

(230.0

)

$

(356.7

)

 

Percent (deficient)/redundant

 

(2.9

)%

(6.5

)%

(15.3

)%

(41.0

)%

(39.2

)%

(19.1

)%

(14.0

)%

(7.2

)%

(6.0

)%

(8.3

)%

 


(1)             The table includes the complete loss development history for all periods presented for all companies acquired by Folksamerica through an instrument of transfer and assumption approved by the appropriate insurance regulators. Under the instrument, insurance regulators require that Folksamerica report reserve development as if the companies had been combined from their inception.

(2)

Folksamerica became a wholly-owned subsidiary of White Mountains during 1998. Reserve development for the yearsyear ended 1996 through 1997 reflects development on reserves established before White Mountains consolidated Folksamerica’sFolksamerica's results.

(3)             Sirius,

(2)
Includes prior year development of $223 million on short-tailed losses related to hurricanes Katrina, Rita and Wilma, including Scandinavian Re, became a wholly-owned subsidiary of White Mountains Re during 2004. The table includes the complete loss development history for all periods presented. Reserve development for the years ended 1996 through 2003 reflects development on reserves established before White Mountains Re consolidated Sirius’ results. See table, below.

(4)             White Mountains Re acquired $136.8 million in net loss and LAE reserves when it acquired Tryg-Baltica during 2004. For periods prior to December 31, 2004, loss and LAE reserves for Tryg-Baltica are not included due to lack of availability of loss development history on a comparable basis.

(5)     White Mountains Re acquired $38.3 million in net loss and LAE reserves when it acquired Stockbridge during 2006. For periods prior to December 31, 2006, loss and LAE reserves for Stockbridge are not included due to lack of availability of loss development history.

Olympus reimbursement.

        

The cumulative net (deficiency)/redundancy in the table above reflects adverse development recorded by Scandinavian Re, which was acquired by White Mountains Re as part of the Sirius Acquisition in 2004, and has been in run off since 2002. Scandinavian Re was a writer of non-traditional reinsurance products from 1988 to 2001. The cumulative net (deficiency)/redundancy in the table above also includes adverse development from A&E claims. White Mountains Re's exposure to A&E claims results mainly from asbestos claims arising from treaty and facultative contracts written prior to 1985 at two companies acquired by Folksamerica - Folksamerica—MONY Reinsurance in 1991 and Christiania General in 1996. As a result, the table above reflects reserve development on Scandinavian Re prior to White Mountains Re’s ownership and on A&E business that was not underwritten by White Mountains Re.  The table presented below represents White Mountains Re’s cumulative net (deficiency)/redundancy excluding Scandinavian Re and A&E claims:

 

 

Years Ended December 31,

 

($ in millions)

 

1996

 

1997

 

1998

 

1999

 

2000

 

2001

 

2002

 

2003

 

2004

 

2005

 

2006

 

Cumulative net (deficiency) redundancy, excluding Scandinavian Re and A&E

 

$

175.3

 

$

101.7

 

$

(26.7

)

$

(233.9

)

$

(90.5

)

$

(56.5

)

$

(61.2

)

$

(26.1

)

$

(17.9

)

$

(230.8

)

 

Percent (deficient) / redundant

 

7.7

%

4.6

%

(1.2

)%

(12.0

)%

(3.7

)%

(2.1

)%

(2.2

)%

(0.9

)%

(0.6

)%

(6.0

)%

 

In general, many of Scandinavian Re's contracts were large and contained high limits.  During the soft market period of 1999 to 2001, when pricing, terms and conditions were not very favorable, many of the contracts Scandinavian Re entered into were underpriced, resulting in much higher incurred losses than expected.  These factors caused a significant amount of adverse development to be reported by Scandinavian Re, nearly all of which was recorded prior to White Mountains Re's ownership.  As a result, including Scandinavian Re's results in the ten year table presents a distorted picture of the historic loss reserve adequacy of White Mountains Re's ongoing businesses.

White Mountains Re's net incurred losses from A&E claims have totaled $145$198 million over the past ten years. Although losses arising from A&E claims were on contracts that were not underwritten by White Mountains Re, White Mountains Re is liable for any additional losses arising from such contracts. Accordingly, White Mountains Re cannot guarantee that it will not incur additional A&E losses in the future. Refer to "CRITICAL ACCOUNTING ESTIMATES" in Management’s"Management's Discussion and Analysis of Financial Condition and Results of Operations" for further details of White Mountains Re's A&E reserves.

The following table reconciles loss and LAE reserves determined on a regulatory basis to loss and LAE reserves determined in accordance with GAAP at December 31, as follows:

 

December 31,

 

 December 31,
 

Millions

 

2006

 

2005

 

2004

 

 
Millions

2007
 2006
 2005
 

 

$

2,866.3

 

$

3,109.7

 

$

3,092.0

 

 $2,821.6 $2,866.3 $3,109.7 

Reinsurance recoverable on unpaid losses and LAE (1)

 

875.6

 

1,513.1

 

948.2

 

Reinsurance recoverable on unpaid losses and LAE(1) 573.5 875.6 1,513.1 

Discount on loss reserves

 

141.6

 

184.5

 

245.2

 

 121.0 141.6 184.5 

Reserves allocated to other segments

 

(123.6

)

(105.6

)

(91.2

)

 (218.6) (123.6) (105.6)

Purchase accounting and other

 

(51.1

)

(21.4

)

(23.9

)

 (45.4) (51.1) (21.4)
 
 
 
 

GAAP reserves

 

$

3,708.8

 

$

4,680.3

 

$

4,170.3

 

 $3,252.1 $3,708.8 $4,680.3 
 
 
 
 

(1)
Represents adjustments made to add back reinsurance recoverables included with the presentation of reserves under regulatory accounting.

accounting.Recent Financing Activities

        In May 2007, White Mountains Re Group, Ltd. ("WMRe Group"), an intermediate holding company of White Mountains Re, issued $250 million non-cumulative perpetual preference shares, with a $1,000 per share liquidation preference (the "WMRe Preference Shares"), and received $246 million of proceeds, net of $4 million of issuance costs and commissions. These shares were issued in an offering that was exempt from the registration requirements of the Securities Act of 1933. Holders of the WMRe Preference Shares receive dividends on a non-cumulative basis when and if declared by WMRe Group. The holders of the WMRe Preference Shares have the right to elect two directors to WMRe Group's board in the event of non-payment of dividends for six quarterly dividend periods. The right ceases upon the payment of dividends for four quarterly periods or the redemption of the WMRe Preference Shares. In addition, WMRe Group may not declare or pay dividends on its common shares (other than stock dividends and dividends paid for purposes of any employee benefit plans of WMRe Group and its subsidiaries) unless it is current on its most recent dividend period. The dividend rate is fixed at an annual rate of 7.506% until June 30, 2017. After June 30, 2017, the dividend rate will be paid at a floating annual rate, equal to the greater of (1) the 3 month LIBOR plus 3.20% or (2) 7.506%. The WMRe Preference Shares are redeemable solely at the discretion of WMRe Group on or after June 30, 2017 at their liquidation preference of $1,000 per share, plus any declared but unpaid dividends. Prior to June 30, 2017, WMRe Group may elect to redeem the WMRe Preference Shares at an amount equal to the greater of (1) the aggregate liquidation preference of the shares to be redeemed and (2) the sum of the present values of the aggregate liquidation preference of the shares to be redeemed and the remaining scheduled dividend payments on the shares to be redeemed (excluding June 30, 2017), discounted to the redemption date on a semi-annual basis at a rate equal to the rate on a comparable treasury issue plus 45 basis points. In the event of liquidation of WMRe Group, the holders of the WMRe Preference Shares would have preference over the common shareholders and would receive a distribution equal to the liquidation preference per share, subject to availability of funds.

        In March 2007, WMRe Group issued $400.0 million face value of senior unsecured debt at an issue price of 99.715% (the "WMRe Senior Notes"), resulting in net proceeds of $392 million, which were distributed to its immediate parent. The WMRe Senior Notes, which were issued in an offering that was exempt from the registration requirements of the Securities Act of 1933, bear an annual interest rate of 6.375%, payable semi-annually in arrears on March 20 and September 20, until maturity in March 2017. Taking into effect the amortization of the original issue discount and all underwriting and issuance expenses, including an interest rate lock agreement, the WMRe Senior Notes yield an effective rate of 6.49% per annum.


ESURANCE

The Esurance group of companies, which has its United States headquarters in San Francisco, has been part of White Mountains since October 2000. Esurance markets personal auto insurance directly to customers online and through select online agents. Most customer interaction with the company takes place through Esurance’svia Esurance's website, www.esurance.com. Through the website, customers can get real-time quotes, compare quotes from other companies, purchase their policies, report claims, watch vehicle repairs, make changes to their policy and manage their accounts. At December 31, 2006, Esurance’s2007, Esurance's in-force policy count had grown to over 370,000485,000 policies, as compared to 43,000 policies at the end of 2002.

Esurance’s        Esurance's underwriting companies, Esurance Insurance Company, Esurance Insurance Company of New Jersey and Esurance Property and Casualty Insurance Company are rated “A”"A-" (Excellent, the thirdfourth highest of fifteen ratings) by A.M. Best. Over the past several years, Esurance has ceded a large percentage of its business to certain other subsidiaries of White Mountains, primarily for capital management purposes. TheThis business is included in the Esurance segment includes insurance ceded by Esurance to subsidiaries of White Mountains.segment. At December 31, 20062007 and 2005,2006, Esurance had $723.6$1,103 million and $414.2$724 million of total assets and $308.5$445 million and $176.7$309 million of shareholder’sshareholder's equity, respectively.


Geographic Concentration

As of December 31, 2006,2007, Esurance writes business in twenty-fourtwenty-eight states. These states represent approximately 79%85% of the premium volume for the entire U.S. personal auto insurance market. For the years ended December 31, 2007, 2006 2005 and 2004,2005, Esurance had net written premiums of $799 million, $596 million $349 million and $199$349 million, respectively, which were produced in the following states:

 

Year Ended December 31,

 


 Year Ended December 31,
 
Net written premiums by state

Net written premiums by state

 

 

   2006   

 

   2005   

 

   2004   

 

2007
 2006
 2005
 

California

 

19

%

20

%

25

%

California 22%19%20%

Florida

 

17

 

20

 

24

 

Florida 16 17 20 

New York

 

9

 

8

 

5

 

New York 7 9 8 

Texas

 

6

 

9

 

11

 

Texas 6 6 9 

Michigan

 

6

 

7

 

7

 

Michigan 5 6 7 

New Jersey

 

5

 

3

 

 

Pennsylvania

 

5

 

4

 

5

 

Pennsylvania 5 5 4 

Washington

 

4

 

3

 

1

 

Washington 5 4 3 
New JerseyNew Jersey 4 5 3 

Other

 

29

 

26

 

22

 

Other 30 29 26 

Total

 

100

%

100

%

100

%

 
 
 
 
Total 100%100%100%
 
 
 
 

Marketing

Esurance targets technology-savvy consumers who rely on the internetInternet to manage their financial services needs. Prior to 2004, Esurance had advertisedhas a diverse marketing mix and features its productsanimated icon, "Erin Esurance", across its advertising channels. In 2007, Esurance expanded its national television campaign and services primarily online. Beginning in 2004, Esurance beganits online video campaigns, forming partnerships with new video portals (e.g. Hulu and Joost). In 2007, the company continued to advertise on local television networks with the “Erin Esurance” brand campaign, featuring an animated female secret-agent character. The campaign is designed to communicate Esurance’s unique, technology-focused approach to auto insurance. During 2006, Esurance shifted its television advertising focus to national cable television networks, which has proven to be more effectivethrough paid search engines (e.g., Google and cost efficient than local television advertising.

Erin Esurance now appears in nearly allYahoo! Search), and a variety of the company’s offlineinsurance, finance, and online advertising. Esurance advertises offline on television, radio, and through direct mail.automotive web sites. Esurance also has sponsor relationships with professional and college sports teams, as well as various environmental and community organizations. Esurance advertises online through paid search (e.g., Google and Yahoo! Search), and on a variety of insurance, finance, and automotive web sites.

The launch of offline        Diversified advertising channels and the “Erin Esurance” campaignpresence of "Erin Esurance" have resulted not only in continued, significant business growth but also inand substantial increases in brand awareness, for the company, particularly among itsEsurance's target customer base of web-savvy individuals. Esurance is not only the third largest issuer of auto insurance quotes on the Internet, behind only GEICO and Progressive, but also the third most recognizable brand for online auto insurance among consumers of online goods and GEICO.services.


Esurance uses a rigorous, analytical marginal cost methodology to allocate its marketing budget across the various media channels it uses. This methodology enables the company to focus its marketing resources on attracting and retaining customers that have the best expected lifetime premium and/or combined ratio.

Underwriting and Pricing

Esurance collects and verifies detailed underwriting information in real-time while customers transact with the company online. Real-time access to customer information allows Esurance to continually develop and refine its highly segmented, tiered pricing models. Esurance believes that its tiered pricing models have a greater statistical correlation with historical loss experience than traditional pricing models have shown. As a result, Esurance is able to quote rates to customers that closely correspond to the individual risk characteristics of the customer, enabling Esurance to focus on keeping insurance rates competitive without compromising the company’scompany's loss ratio targets.


Competition

Esurance competes with national and regional personal auto insurance companies, though Esurance’sEsurance's main competition comes from other direct writers like Progressive, GEICO and 21st Century.Progressive.

By leveraging web-enabled technology, Esurance can capture data real-time and respond quickly to changing loss trends. Esurance is continually able to continually refine pricing, enhance its auto product, and optimize dollars spent on marketing with the arrayassortment of customer information that is at itsthe company's disposal. Web technology also allows Esurance to provide high quality, 24/7 customer service and claims handling for a competitive price.cost effectively.

Esurance’s        Esurance's paperless business process allows the company to significantly reduce operating costs typically associated with policy processing, verification and endorsement activities. As a result, the company is able to achieve efficient, low-cost acquisition and operating expense structures. Further, Esurance's paperless business model is the foundation of the company's environmental commitment, which helps differentiate Esurance from its competitors.

Claims Management

Esurance takes initial notice of claims at the company’sits loss reporting unit in South Dakota, which is available for customers 24 hours a day, 365 days a year. The loss reporting unit then transfers claims to regional claim offices in Arizona, California, Colorado, Florida, Georgia, New Jersey, New York, Texas and TexasWisconsin where claims are handled and adjusted.

Esurance’s        Esurance's claims organization leverages technology to reduce cycle times and achieve strict claims performance metrics. Rapid response to and resolution of claims creates a stronger relationship with customers, while also decreasing ancillary claims costs, such as rental car fees. Additionally, Esurance maintains a special investigative unit designed to detect insurance fraud, and actively supports efforts by regulatory bodies and trade associations to curtail the cost of insurance fraud.

Catastrophe Risk Management

Esurance’s        Esurance's sole line of business is personal auto insurance that covers liabilities and physical damage arising from the operation of automobiles. The majority of Esurance’sEsurance's customers elect coverage for physical damage (81%), resulting in exposure to catastrophe losses at Esurance forfrom hurricanes, hailstorms, earthquakes and other acts of nature. Generally, catastrophe costs are low for personal auto in relation to other lines of business, such as homeowners and commercial property. Additionally, Esurance’sEsurance's broad geographic distribution limits its concentration of risk and the potential for losses to accumulate from a single event.

Loss and Loss Adjustment Expense Information

Esurance establishes loss and LAE reserves that are estimates of amounts needed to pay claims and related expenses in the future for insured events that have already occurred. The process of estimating reserves involves a considerable degree of judgment by management and, as of any given date, is inherently uncertain. Uncertainties in projecting estimates of ultimate loss and LAE are magnified by the time lag between when a claim actually occurs and when it is reported and settled (i.e., the claim-tail). Esurance writes primarily short-tail personal auto insurance policies, which reduces the uncertainty inherent in its loss and LAE reserves when compared to insurance companies that write long-tail policies, such as workers compensation.


Management believes that Esurance’sEsurance's loss and LAE reserves as of December 31, 20062007 are adequate; however, ultimate loss and LAE may deviate, perhaps materially, from the amounts currently reflected in the reserve balance. Adverse development, if any, would impact the Company’sEsurance's future results of operations.

The following information presents (1) Esurance’sEsurance's reserve development over the fiveseven years since inception and (2) a reconciliation of reserves on a Statutory basis to reserves determined in accordance with GAAP, each as prescribed by Securities Act Industry Guide No. 6.

Section I of the 10 year table shows the estimated liability that was recorded at the end of each of the indicated years for all current and prior accident year unpaid loss and LAE. The liability represents the estimated amount of loss and LAE for claims that were unpaid at the balance sheet date, including IBNR reserves. In accordance with GAAP, the liability for unpaid loss and LAE is recorded in the balance sheet gross of the effects of reinsurance with an estimate of reinsurance recoverables arising from reinsurance contracts reported separately as an asset. The net balance represents the estimated amount of unpaid loss and LAE outstanding as of the balance sheet date, reduced by estimates of amounts recoverable under reinsurance contracts.


        

Section II shows the cumulative amount of net loss and LAE paid relating to recorded liabilities as of the end of each succeeding year. Section III shows the re-estimated amount of the previously recorded net liability as of the end of each succeeding year. Estimates of the liability for unpaid loss and LAE are increased or decreased as payments are made and more information regarding individual claims and trends, such as overall frequency and severity patterns, becomes known. Section IV shows the cumulative net (deficiency)/redundancy representing the aggregate change in the liability from original balance sheet dates and the re-estimated liability through December 31, 2006.2007. Section V shows the re-estimated gross liability and re-estimated reinsurance recoverables through December 31, 2006.2007. Section VI shows the cumulative gross (deficiency)/redundancy representing the aggregate change in the liability from original balance sheet dates and the re-estimated liability through December 31, 2006.2007.

 

 

Esurance Loss and LAE (1) (2)

 

 

 

Years Ended December 31,

 

($ in millions)

 

2001

 

2002

 

2003

 

2004

 

2005

 

2006

 

I. Liability for unpaid loss and LAE:

 

 

 

 

 

 

 

 

 

 

 

 

 

Gross balance

 

$

4.0

 

$

15.5

 

$

39.1

 

$

63.0

 

$

94.1

 

$

167.4

 

Less: reinsurance recoverables on unpaid loss and LAE

 

 

 

 

(.1

)

(.1

)

(.5

)

Net balance

 

$

4.0

 

$

15.5

 

$

39.1

 

$

62.9

 

$

94.0

 

$

166.9

 

II. Cumulative net amount of net liability paid through:

 

 

 

 

 

 

 

 

 

 

 

 

 

1 year later

 

2.5

 

9.3

 

18.9

 

35.8

 

62.4

 

 

2 years later

 

3.3

 

12.2

 

24.5

 

47.4

 

 

 

 

 

3 years later

 

3.9

 

13.7

 

28.2

 

 

 

 

 

 

 

4 years later

 

4.1

 

14.6

 

 

 

 

 

 

 

 

 

5 years later

 

4.1

 

 

 

 

 

 

 

 

 

 

 

III. Net liability re-estimated as of:

 

 

 

 

 

 

 

 

 

 

 

 

 

1 year later

 

4.0

 

16.0

 

34.0

 

54.9

 

97.2

 

 

2 years later

 

4.4

 

15.3

 

29.4

 

55.5

 

 

 

 

 

3 years later

 

4.3

 

14.4

 

29.5

 

 

 

 

 

 

 

4 years later

 

4.2

 

14.6

 

 

 

 

 

 

 

 

 

5 years later

 

4.1

 

 

 

 

 

 

 

 

 

 

 

IV. Cumulative net (deficiency)/ redundancy

 

$

(.1

)

$

.9

 

$

9.6

 

$

7.4

 

$

(3.2

)

 

Percent (deficient)/redundant

 

(3.7

)%

6.0

%

24.5

%

11.9

%

(3.4

)%

 

V. Reconciliation of net liability re-estimated as of the end of the latest re-estimation period (see III. above):

 

 

 

 

 

 

 

 

 

 

 

 

 

Gross unpaid loss and LAE latest re-estimate

 

$

4.1

 

$

14.6

 

$

29.8

 

$

56.3

 

$

97.8

 

 

Reinsurance recoverable latest re-estimate

 

 

 

(.3

)

(.8

)

(.6

)

 

Net unpaid loss and LAE latest re-estimate

 

$

4.1

 

$

14.6

 

$

29.5

 

$

55.5

 

$

97.2

 

 

VI. Cumulative Gross redundancy (deficiency)

 

$

(.1

)

$

.9

 

$

9.3

 

$

6.7

 

$

(3.7

)

 

Percent deficient

 

(2.5

)%

5.8

%

23.8

%

10.6

%

(3.9

)%

 

 
 Esurance Loss and LAE(1)(2)
Years Ended December 31,

 
($ in millions)

 
 2001
 2002
 2003
 2004
 2005
 2006
 2007
 
I. Liability for unpaid loss and LAE:                      
Gross balance $4.0 $15.5 $39.1 $63.0 $94.1 $167.4 $285.3 
Less: reinsurance recoverables on unpaid loss and LAE        (.1) (.1) (.5) (2.2)
  
 
 
 
 
 
 
 
Net balance $4.0 $15.5 $39.1 $62.9 $94.0 $166.9 $283.1 
  
 
 
 
 
 
 
 
II. Cumulative net amount of net liability paid through:                      
 1 year later  2.5  9.3  18.9  35.8  62.4  125.3   
 2 years later  3.3  12.2  24.5  47.4  89.9       
 3 years later  3.9  13.7  28.2  54.3          
 4 years later  4.1  14.6  29.6             
 5 years later  4.1  14.6                
 6 years later  4.1                   
  
 
 
 
 
 
 
 
III. Net liability re-estimated as of:                      
 1 year later  4.0  16.0  34.0  54.9  97.2  196.4   
 2 years later  4.4  15.3  29.4  55.5  107.3       
 3 years later  4.3  14.4  29.5  58.2          
 4 years later  4.2  14.6  30.3             
 5 years later  4.1  14.6                
 6 years later  4.1                   
  
 
 
 
 
 
 
 
IV. Cumulative net (deficiency)/redundancy $(.1)$.9 $8.9 $4.7 $(13.3)$(29.6)$ 
Percent (deficient)/redundant  (3.7)% 5.8% 22.6% 7.5% (14.2)% (17.7)%  
  
 
 
 
 
 
 
 
V. Reconciliation of net liability re-estimated as of the end of the latest re-estimation period (see III. above):                      
Gross unpaid loss and LAE latest re-estimate $4.1 $14.6 $30.5 $58.9 $107.8 $198.7 $ 
Reinsurance recoverable latest re-estimate      (.2) (.7) (.5) (2.3)  
  
 
 
 
 
 
 
 
Net unpaid loss and LAE latest re-estimate $4.1 $14.6 $30.3 $58.2 $107.3 $196.4 $ 
  
 
 
 
 
 
 
 
VI. Cumulative Gross (deficiency)/redundancy $(.1)$.9 $8.6 $4.1 $(13.7)$(31.3)$ 
Percent (deficient)/redundant  (3.7)% 5.8% 22.2% 6.6% (14.6)% (18.7)%  
  
 
 
 
 
 
 
 

(1)
The table consists of reserve information for Esurance Insurance Company, Esurance Property & Casualty Insurance Company, and business ceded by Esurance to Folksamerica, OneBeacon and Sirius.



(2)
Esurance became a subsidiary of White Mountains during 2000.


The following table reconciles loss and LAE reserves determined on a Statutory basis to loss and LAE reserves determined in accordance with GAAP at December 31, as follows:

 

December 31,

 

 December 31,
Millions

 

2006

 

2005

 

2004

 

2007
 2006
 2005

Statutory reserves

 

$

43.3

 

$

30.1

 

$

16.2

 

 $64.3 $43.3 $30.1

Reserves allocated from other segments

 

123.6

 

64.0

 

46.7

 

 218.6 123.6 64.0

Reinsurance recoverable on unpaid losses and LAE (1)

 

.5

 

 

.1

 

Reinsurance recoverable on unpaid losses and LAE(1) 2.4 .5 
 
 
 

GAAP reserves

 

$

167.4

 

$

94.1

 

$

63.0

 

 $285.3 $167.4 $94.1
 
 
 

(1)
Represents adjustments made to add back reinsurance recoverables included with the presentation of reserves under regulatory accounting.


OTHER OPERATIONS

        White Mountains' Other Operations segment consists of the operations of the Company, the Company's intermediate subsidiary holding companies, White Mountains' weather risk management and variable annuity reinsurance businesses, the consolidated results of the Tuckerman Funds, the International American Group, WM Advisors and White Mountains' investments in Symetra, Pentelia, Delos (seeInvestments in Unconsolidated Affiliates below) and Montpelier Re (until its disposition in May 2007).

WM Advisors

WM Advisors is a registered investment adviser that manages White Mountains’Mountains' investments in fixed income and equity securities, including hedge funds, limited partnerships and private equities. WM Advisors also has investment management agreements with third parties, most notably with Symetra and Montpelier Re. At December 31, 2006,2007, WM Advisors had approximately $32$29.6 billion in assets under management, $10$10.6 billion of which related to consolidated subsidiaries of White Mountains.

WM Advisors has a sub-advisory agreement with Prospector Partners LLC (“Prospector”("Prospector"), a registered investment adviser, under which Prospector manages most of White Mountains’Mountains' publicly-traded common equity and convertible securities. Prospector also provides consulting and advisory services to White Mountains through a separate agreement with WM Advisors on matters such as capital management, asset allocation, private equity investments and mergers and acquisitions.

Galileo

During 2006, White Mountains entered into the weather risk management business through its newly formed subsidiary, Galileo. Galileo sells its weather and weather contingent risk management products, as derivativestypically in derivative form, that are designed to assist corporate and governmental customers, primarily energy companies, utilities and construction companies, in managing their economic exposure to variations in weather conditions. Galileo then manages its weather and weather contingent derivative portfolio through the employment of a variety of risk management strategies to preserve its expected margins. These strategies include geographical diversification of risk exposures and economic hedging through the use of weather and commodity derivatives traded in both the over-the-counter and exchange-traded derivative markets. Additionally, Galileo may economically hedgeshedge portions of its risk exposure by buying and selling similar weather risk contracts with different counterparties. For example, Galileo may sell an option to protect a customer if it becomes too cold in a certain location and then purchase an option from another counterparty that pays Galileo if it becomes too cold in that same location. Galileo may also diversifiesdiversify its risk exposure by entering into contracts that protect different clients with opposite exposures to the same quantifiable weather element. For example, Galileo may sell an option to protect a customer if it becomes too cold in a certain location and then sell another option that protects a different customer if it becomes too warm in that same location. Risk management is undertaken on a portfolio-wide basis in order to maintain a portfolio that Galileo believes is well diversified and that remains within the aggregate risk tolerance established by senior management.


Weather derivatives, which usually take the form of swaps or options, are contracts with financial settlements based on the performance of an index linked to a quantifiable weather element, such as temperature, precipitation, snowfall or windspeed. Typical contracts span several months such as a summer or winter season. A weather swap is a contract that requires one of the contractual parties to make a payment to the other contractual party when a weather index rises above or falls below a specified level, or “strike”"strike". Therefore, upon settlement of a weather swap, Galileo may make or receive a payment. A weather call option is a contract that entitles the purchaser to receive a payment when the weather index exceeds a specified strike, and a weather put option is a contract that entitles the purchaser to receive a payment when the weather index is less than a specified strike. Every weather derivative is defined by a series of terms, including strike, location, notional payout rate (per unit or event), maximum payout, time period and reference index, which isare calculated from weather data collected from a specified weather station.

        Weather contingent derivative products are weather derivatives with an additional commodity price trigger. Due to the dual trigger nature, weather contingent products are usually in the form of a call or put option. For example, a temperature contingent gas call will usually pay a client if temperatures are colder than an agreed upon trigger and natural gas prices are above a second trigger.

        Beginning in February 2006, OneBeacon Insurance Company ("OBIC"), a subsidiary of OneBeacon, agreed to provide guarantees of the obligations of Galileo to Galileo's counterparty in certain weather related product transactions. The guarantees require OBIC to pay the full amount of Galileo's obligations to the counterparty in the event of Galileo's failure to pay these obligations. In the event of a payment, OBIC would be eligible to exercise all of the rights of the counterparty against Galileo. As of December 31, 2007, OBIC had eight outstanding guarantees of Galileo transactions, the total principal amount of which was approximately $49 million. In the event that the total guaranteed principal amount exceeds the lesser of 5% of OBIC's admitted assets of $3.5 billion at December 31, 2007 or 25% of OBIC's statutory surplus of $1.6 billion at December 31, 2007, OBIC would require the approval of the Pennsylvania Department of Insurance in order to make any further guarantees. OBIC has agreed, at White Mountains' option, to continue to make these guarantees available until October 2008 and will receive from Galileo an annual fee of 25 basis points of the value at risk for providing the guarantees. Pursuant to a separation agreement White Mountains entered into with OneBeacon in connection with the OneBeacon Offering, White Mountains has agreed that it will take appropriate steps to ensure that OBIC will not be called on to make payment on these guarantees.

WM Life Re

During 2006, White Mountains entered into the variable annuity reinsurance business through its newly formed subsidiary, WM Life Re. WM Life Re reinsures death and living benefit guarantees associated with certain variable annuities issued in Japan, commencing September 1, 2006. WM Life Re has assumed the risk related to a shortfall between the account value and the guaranteed value that must be paid by the ceding company to an annuitant or to an annuitant’sannuitant's beneficiary in accordance with the underlying annuity contracts. Generally, the liabilities associated with these guarantees increase with declines in the equity markets, interest rates and currencies against the Japanese Yen, as well as with increases in market volatilities. The liability is also affected by annuitant-related actuarial assumptions, including surrender and mortality rates.

WM Life Re purchases derivative instruments, which currently include put optionoptions and futures contracts on major equity indices, currency pairs and futures contracts on bonds, to mitigate the risks associated with changes in the fair value of the reinsured variable annuity guarantees. WM Life Re measures its net exposure to changes in relevant interest rates, foreign exchange rates and equity markets on a daily basis and adjusts its economic hedge positions within risk guidelines established by senior management. WM Life Re also monitors the effects of annuitant-related experience against actuarial assumptions (including surrender and mortality rates) on a weekly basis and adjusts relevant assumptions and economic hedge positions if required.


Tuckerman Capital, LP and Tuckerman Capital II, LP

White Mountains owns approximately 96% of Tuckerman Capital, LP and approximately 50% of Tuckerman Capital II, LP (collectively, the “Tuckerman Funds”"Tuckerman Funds"). The Tuckerman Funds are managed by Tuckerman Capital, a private investment firm that focuses on acquisitions of small manufacturing companies, and are consolidated within White Mountains’Mountains' financial statements. Tuckerman Capital focuses its acquisition efforts on companies with enterprise values ranging from $5 million to $25 million and with established track records of success. The companies owned by the Tuckerman Funds are manufacturers of highly engineered, non-commodity products across a broad range of industries.


At December 31, 20062007 and 2005,2006, the Tuckerman Funds had $101$91 million and $64$101 million of total assets and accounted for $38$32 million and $34$38 million of White Mountains’Mountains' net assets, respectively.

Prospector Offshore Fund, Ltd.

White Mountains owns approximately 42% of the Prospector Offshore Fund, Ltd. (“Prospector Fund”). The Prospector Fund is managed by Prospector, a registered investment advisor, and is consolidated within White Mountains’ financial statements. The Prospector Fund is an open-ended mutual fund that pursues investment opportunities in a variety of equity and equity-related instruments, with a principal focus on the financial services sector and a special emphasis on the insurance industry.

At December 31, 2006 and 2005, the Prospector Fund had $211 million and $177 million of total assets and accounted for $59 million and $55 million of White Mountains’ net assets, respectively.

International American Group

In October 1999, White Mountains acquired the International American Group, which included American Centennial, British Insurance Company and Peninsula Insurance Company (“Peninsula”).

Delaware-domiciled American Centennial and Cayman Island-domiciled British Insurance Company are property and casualty insurance and reinsurance companies in run-off. At December 31, 2007 and 2006, and 2005, American Centennial had $80$78 million and $77$80 million of total assets and $11 million and $13 million and $17 million of shareholder’sshareholder's equity, respectively. At December 31, 20062007 and 2005,2006, British Insurance Company had $37$18 million and $38$37 million of total assets and $6 million and $8 million and $6 million of shareholder’sshareholder's equity, respectively.

In January 2004, White Mountains sold Peninsula, a Maryland-domiciled property and casualty insurer, for $23 million. For the year ended December 31, 2003, Peninsula had $34 million of net written premiums.

WTM Bank Facility

The Company and        During the second quarter of 2007, White Mountains Re Group, Ltd. are both permitted borrowers under a $500 million revolvingreplaced its existing credit facility (the “WTM Bank Facility”), whichwith a new $475 million revolving credit facility that matures in November 2011.June 2012 (the "WTM Bank Facility"). This new facility removed WMRe Group as co-borrower and co-guarantor, added certain intermediate holding companies of White Mountains as co-guarantors and amended and/or removed certain financial and other covenants. As of December 31, 2006, White Mountains had $320 million of debt outstanding under2007, the WTM Bank Facility.Facility was undrawn.

INVESTMENTS

INVESTMENTS

White Mountains’Mountains' investment philosophy is to maximize its after-tax total risk-adjusted return over the long term. Under this approach, each dollar of after-tax investment income and realized and unrealized gains and losses is valued equally. White Mountains’Mountains' investment portfolio mix as of December 31, 20062007 consisted in large part of high-quality, fixed maturity investments and short-term investments, as well as equity investments and other investments, such as hedge funds, limited partnerships and private equities. White Mountains’Mountains' management believes that prudent levels of investments in common equity securities and other investments within its investment portfolio are likely to enhance long-term after-tax total returns without significantly increasing the risk profile of the portfolio.

White Mountains’Mountains' overall fixed maturity investment strategy is to purchase securities that are attractively priced in relation to credit risks. White Mountains also actively manages the average duration of the portfolio, about 22.5 years including short-term investments and about 3.0 years excluding short-term investments at December 31, 2006, including short-term investments,2007, to seek the highest after-tax, risk-adjusted total returns.

Prospector’s        Prospector's equity investment strategy is to maximize absolute risk-adjusted total return through investments in a variety of equity and equity-related instruments, using a bottom-up, value discipline. Preservation of capital is of the utmost importance. Using a value orientation, White MountainsProspector invests in relatively concentrated positions in the United States and other developed markets.


    Trust account investments

In connection with the OneBeacon Offering, Fund American and FAEH each established an irrevocable grantor trust. The assets of each trust iswere solely dedicated to the satisfaction of the payment of dividends and redemption amounts, respectively, on respectively, $300 million liquidation preference of Fund American’sAmerican's Berkshire Preferred Stock, and $20 million liquidation preference of FAEH’sFAEH's Zenith Preferred Stock. Fund American and FAEH funded their respective trusts with cash and purchased a portfolio of fixed maturity securities issued by the U.S. government and government sponsored enterprises, the scheduled interest and principal payments of which are sufficient to pay when due all amounts required under the terms of the Berkshire Preferred Stock and the Zenith Preferred Stock, respectively (including the mandatory redemption of the Berkshire Preferred Stock in May 2008 and the optional redemption of the Zenith Preferred Stock in June 2007, which White Mountains will exercise)exercised and redeemed).

    Prospector Offshore Fund, Ltd.

        White Mountains owns approximately 46% of the Prospector Offshore Fund, Ltd. ("Prospector Fund"). See “Management’s DiscussionThe Prospector Fund is managed by Prospector, a registered investment advisor, and Analysisis consolidated within White Mountains' financial statements. The Prospector Fund is an open-ended mutual fund that pursues investment opportunities in a variety of Financial Conditionequity and Resultsequity-related instruments, with a principal focus on the financial services sector and a special emphasis on the insurance industry.

        At December 31, 2007 and 2006, the Prospector Fund had $207 million and $211 million of Operations-Liquiditytotal assets and Capital Resources.”accounted for $64 million and $59 million of White Mountains' net assets, respectively.


    Montpelier Re

In December 2001, White Mountains, the Benfield Group plc and several other private investors established Montpelier Re and its wholly-owned subsidiary Montpelier Reinsurance Ltd. On October 15, 2002, Montpelier Re successfully completed an initial public offering and its common shares are listed on the New York Stock Exchange. White Mountains initially invested $180 million in Montpelier Re in exchange for 10.8 million common shares and warrants to acquire 4.8 million additional common shares of Montpelier Re.

During the first quarter of 2004, White Mountains purchased additional warrants to acquire 2.4 million common shares of Montpelier Re from an existing warrant holder for $54 million in cash, thereby raising the total number of Montpelier Re warrants owned by White Mountains to 7.2 million.

Also during the first quarter of 2004,and White Mountains sold 4.5 million common shares of Montpelier Re to third parties. As a result of this sale, as well as changes to the composition of the Board of Directors of both Montpelier Re and White Mountains, White Mountains changed the method of accounting for its remaining common share investment in Montpelier Re as of March 31, 2004 from an equity method investment in an unconsolidated affiliate to a common equity security classified as available for sale and carried at fair value.

During the third quarter of 2006, White Mountains sold an additional 5.4 million shares of its common share investment in Montpelier Re to third parties, thereby reducing the total number of Montpelier Re common shares owned by White Mountains to 0.9 million.parties.

At December 31, 2006, and 2005, White Mountains’Mountains' investment in Montpelier Re warrants and common shares totaled $67 million. On May 1, 2007, White Mountains sold all of its remaining interest in Montpelier Re, which consisted of 939,039 common shares and warrants to purchase 7,172,376 common shares, for total proceeds of $65 million and $167 million, respectively.recognized an after tax loss of $1.8 million.

Investments in Unconsolidated Affiliates

    Symetra

On August 2,        In 2004, White Mountains, Berkshire and several other private investors capitalized Symetra in order to purchase the life and investment operations of Safeco Corporation for $1.35 billion. The acquired companies which are now operating under the Symetra brand, focus mainly on group insurance, individual life insurance, structured settlements and retirement services. Symetra had an initial capitalization of approximately $1.4 billion, consisting of $1,065 million of common equityandequity and $315 million of debt. White Mountains invested $195 million in Symetra in exchange for 2.0 million common shares of Symetra. In addition, White Mountains and Berkshire each received warrants to acquire an additional 1.1 million common shares of Symetra at $100 per share. White Mountains owns approximately 19% of the outstanding common shares of Symetra and approximately 24% of Symetra on a fully-converted basis including the warrants. Three White Mountains designees serve on Symetra’s eightSymetra's seven member board of directors. White Mountains accounts for its investment in Symetra under the equity method as an investment in an unconsolidated affiliate.

Symetra’s        On October 26, 2007, Symetra executed a 7.7-for-1 stock dividend (substantially equivalent to an 8.7-for-1 stock split) that increased White Mountains' investment in Symetra's common shares from 2.0 million to 17.4 million, and the number of warrants to acquire additional common shares from 1.1 million at $100 per share to 9.5 million at $11.49 per share. The stock split, effected in the form of a dividend, had no effect on White Mountains' percentage of ownership in Symetra.

        Symetra's total revenues and net income for the years ended December 31, 2007, 2006, and 2005 were $1,564$1,590 million and $167 million, $1,568 million and $159 million, respectively, and $1,628 million and $146 million, respectively and for the five months ended December 31, 2004 were $702 million and $58 million, respectively. Symetra’smillion. Symetra's total assets and shareholders’shareholders' equity as of December 31, 2007 and 2006 and 2005 were $20.1$19.6 billion and $1.3 billion, respectively, and $21.0$20.1 billion and $1.4$1.3 billion, respectively. Symetra’sSymetra's principal insurance operating subsidiaries are rated “A”"A" (Excellent, the third highest of fifteen ratings) by A.M. Best and “A-”"A-" (Strong, the seventh highest of twenty-one ratings) by Standard & Poor’s.Poor's.

As of December 31, 2007 and 2006, and 2005, White Mountains’Mountains' total investment in Symetra was $307$324 million and $288$307 million, respectively, excluding ($4)$6 million and $24$4 million, respectively, of equity in unrealized (losses) and gainslosses from Symetra’sSymetra's fixed maturity investments. During 2007 and 2006, White Mountains received special cash dividends from Symetra of $31 million and $16 million on its common share investment and $17 million and $9 million on its warrant investment.


    Pentelia

        In April of 2007, White Mountains invested $50 million in Pentelia, a fund that invests in insurance-related investment assets. White Mountains has determined that its investment in Pentelia is a variable interest entity. However, since White Mountains is not the primary beneficiary, it accounts for its interests in Pentelia as an equity method investment in an unconsolidated affiliate. White Mountains' exposure to loss is limited to the carrying value of its investment in Pentelia, which, as of December 31, 2007, was $52 million.

    Delos

On August 3, 2006, White Mountains Re sold Sirius America to Delos. As part of the transaction, White Mountains invested $32 million in Delos, representing an equity interest of approximately 18% of Delos,, which is accounted for as an equity method investment in an unconsolidated affiliate. As of December 31, 2006,2007, White Mountains’Mountains' total investment in Delos was $32$34 million.


    Main Street America Holdings, Inc. (“MSA”("MSA")

MSA is a subsidiary of Main Street America Group Mutual Holdings, Inc. (“("Main Street Group”Group"), a Florida-domiciled mutual property and casualty insurance holding company, which insures risks located primarily in New York, Massachusetts, Connecticut, Pennsylvania, New Hampshire, Virginia and Florida. White Mountains owned 50% of the outstanding common stock of MSA from March 1998 until October 2006, when White Mountains received a $70 million cash dividend from MSA, following which White Mountains sold its 50% common stock investment in MSA to Main Street America Group, Inc. (“("MSA Group”Group") for (i) $70.0 million in 9.0% non-voting cumulative perpetual preferred stock of MSA Group, and (ii) 4.9% of the common stock of MSA Group. As a result of this transaction, White Mountains no longer accounts for its investment in MSA under the equity method as an investment in an unconsolidated affiliate.

REGULATION

REGULATION

United States

White Mountains’Mountains' U.S.-based insurance and reinsurance operating subsidiaries are subject to regulation and supervision in each of the states where they are domiciled and licensed to conduct business. Generally, regulatory authorities have broad supervisory and administrative powers over such matters as licenses, standards of solvency, premium rates, policy forms, investments, security deposits, methods of accounting, form and content of financial statements, reserves for unpaid loss and LAE, reinsurance, minimum capital and surplus requirements, dividends and other distributions to shareholders, periodic examinations and annual and other report filings. In general, such regulation is for the protection of policyholders rather than shareholders. White Mountains believes that it is in compliance with all applicable laws and regulations pertaining to its business that would have a material effect on its financial position in the event of non-compliance.

Over the last several years most states have implemented laws that establish standards for current, as well as continued, state accreditation. In addition, the NAIC has adopted risk-based capital (“RBC”("RBC") standards for property and casualty insurers as a means of monitoring certain aspects affecting the overall financial condition of insurance companies. The current RBC ratios of White Mountains’Mountains' active insurance and reinsurance operating subsidiaries are satisfactory and such ratios are not expected to result in any adverse regulatory action. White Mountains is not aware of any current recommendations by regulatory authorities that would be expected to have a material effect on its results of operations or liquidity.

As a condition of its license to do business in certain states, White Mountains’Mountains' insurance operating subsidiaries are required to participate in mandatory shared market mechanisms. Each state dictates the types of insurance and the level of coverage that must be provided. The most common type of shared market mechanism in which White Mountains is required to participate is an assigned risk plan. Many states operate assigned risk plans. The NYAIP and New Jersey commercial automobile insurance plans are two such shared market mechanisms in which OneBeacon is required to participate. These plans require insurers licensed within the applicable state to accept the applications for insurance policies of individuals who are unable to obtain insurance in the voluntary market. The total number of such policies an insurer is required to accept is based on its market share of voluntary business in the state. Underwriting results related to assigned risk plans are typically adverse. Accordingly, OneBeacon may be required to underwrite policies with a higher risk of loss than it would otherwise accept.

Reinsurance facilities are another type of shared market mechanism. Reinsurance facilities require an insurance company to accept all applications submitted by certain state designated agents. The reinsurance facility then allows the insurer to cede some of its business to the reinsurance facility so that the facility will reimburse the insurer for claims paid on ceded business. Typically, however, reinsurance facilities operate at a deficit, which is funded through assessments against the same insurers. The Massachusetts Commonwealth Automobile Reinsurers is one such reinsurance facility in which OneBeacon is compelled to participate. As a result, OneBeacon could be required to underwrite policies with a higher risk of loss than it would otherwise voluntarily accept.

The insurance laws of many states generally provide that property and casualty insurers doing business in those states belong to a statutory property and casualty guaranty association. The purpose of these guaranty associations is to protect policyholders by requiring that solvent property and casualty insurers pay certain insurance claims of insolvent insurers. These guaranty associations generally pay these claims by assessing solvent insurers


proportionately based on the insurer’sinsurer's share of voluntary written premiums in the state. While most guaranty associations provide for recovery of assessments through rate increases, surcharges or premium tax credits, there is no assurance that insurers will ultimately recover these assessments. At December 31, 2006,2007, the reserve for such assessments at OneBeacon totaled $17 million.


Many states have laws and regulations that limit an insurer’sinsurer's ability to exit a market. For example, certain states limit a private passenger automobile insurer’sinsurer's ability to cancel and non-renew policies. Furthermore, certain states prohibit an insurer from withdrawing from one or more lines of insurance business in the state, unless the state regulators approve the company’scompany's withdrawal plans. State regulators may refuse to approve such plans on the grounds that they could lead to market disruption. Such laws and regulations may restrict White Mountains’Mountains' ability to exit unprofitable markets.

Nearly all states have insurance laws requiring personal property and casualty insurers to file price schedules, policy or coverage forms, and other information with the state’sstate's regulatory authority. In most cases, such price schedules and/or policy forms must be approved prior to use. While pricing laws vary from state to state, their objectives are generally to ensure that prices are adequate, not excessive and not discriminatory. For example, Massachusetts, a state where OneBeacon has a sizable presence, setshad previously set virtually all aspects of automobile insurance rates, including agent commissions. SuchWhile the state is now transitioning to a system of managed competition, existing regulations oftencontinue to challenge an insurers ability to adequately price its product, which often leads to unsatisfactory underwriting results.

White Mountains’Mountains' U.S. insurance and reinsurance operating subsidiaries are subject to state laws and regulations that require investment portfolio diversification and that limit the amount of investment in certain categories. Non-compliance may cause non-conforming investments to be non-admitted in measuring statutory surplus and, in some instances, may require divestiture. White Mountains’Mountains' investment portfolio at December 31, 20062007 complied with such laws and regulations in all material respects.

One of the primary sources of cash inflows for the Company and certain of its intermediary holding companies is dividends received from its insurance and reinsurance operating subsidiaries. Under the insurance laws of the states under which White Mountains’Mountains' U.S.-based insurance and reinsurance subsidiaries are domiciled, an insurer is restricted with respect to the timing or the amount of dividends it may pay without prior approval by regulatory authorities. See "Dividend Capacity”Capacity" in the "LIQUIDITY AND CAPITAL RESOURCES”RESOURCES" section of Item 7 for further discussion.

White Mountains is subject to regulation under certain state insurance holding company acts. These regulations contain reporting requirements relating to the capital structure, ownership, financial condition and general business operations of White Mountains’Mountains' insurance and reinsurance operating subsidiaries. These regulations also contain special reporting and prior approval requirements with respect to certain transactions among affiliates. Since the Company is an insurance holding company, the domiciliary states of its insurance and reinsurance operating subsidiaries impose regulatory application and approval requirements on acquisitions of White Mountains’Mountains' common shares which may be deemed to confer control over those subsidiaries, as that concept is defined under the applicable state laws. Acquisition of 10% of White Mountains’Mountains' common shares, or in some states as little as 5%, may be deemed to confer control under the insurance laws of some jurisdictions, and the application process for approval can be extensive and time consuming.

While the federal government does not directly regulate the insurance business, federal legislation and administrative policies affect the insurance industry. In addition, legislation has been introduced from time to time in recent years that, if enacted, could result in the federal government assuming a more direct role in the regulation of the insurance industry. A federal lawIn December of 2007, the United States government extended the Terrorism Act until December 31, 2014. The Terrorism Act was originally enacted in 2002 and extended in 2005, the Terrorism Act, providesestablished a “back-stop” toFederal "backstop" for commercial property and casualty insurers inlosses, including workers compensation, resulting from acts of terrorism by or on behalf of any foreign person or foreign interest. As extended, the eventlaw now covers domestic acts of future terrorist acts perpetrated by foreign agents or interests.terrorism. In exchange for this “back-stop”"backstop", primary insurers are required to make coverage available to commercial insureds for losses from acts of non-domestic terrorism as specified in the Terrorism Act. OneBeacon is actively complying with the requirements of the Terrorism Act in order to ensure its ability to be reimbursed by the federal government for any losses it may incur as a result of future terrorist acts. (See “Terrorism” "Terrorism" in the “ONEBEACON” "ONEBEACON" section of this Item for a further discussion of the Terrorism Act). A number of additional enacted and pending legislative measures could lead to increased consolidation and increased competition for business and for capital in the financial services industry. White Mountains cannot predict whether any state or federal measures will be adopted to change the nature or scope of the regulation of the insurance business or what effect such measures may have on its insurance and reinsurance operations.


        

Environmental cleanup of polluted waste sites is subject to both federal and state regulation. The Comprehensive Environmental Response Compensation and Liability Act of 1980 (“Superfund”("Superfund") and comparable state statutes govern the cleanup and restoration of waste sites by potentially responsible parties (“PRPs”("PRPs"). These laws can impose liability for the entire cost of clean-up upon any responsible party, regardless of fault. The insurance industry in general is involved in extensive litigation regarding coverage issues arising out of the cleanup of waste


sites by insured PRPs and as a result has disputed many such claims. From time to time, comprehensive Superfund reform proposals are introduced in Congress, but none has yet been enacted. At this time, it remains unclear as to whether Superfund reform legislation will be enacted or that any such legislation will provide for a fair, effective and cost-efficient system for settlement of Superfund related claims. The NICO Cover includes coverage for such exposures at OneBeacon; however, there can be no assurance that the coverage provided under the NICO Cover will ultimately prove to be adequate.

Sweden

Sweden

Sirius International is subject to regulation and supervision by the Swedish Financial Supervisory Authorities (the “FSA”"FSA"). As Sweden is a member of the European Union (the “EU”"EU"), this supervision covers all locations within the EU. Generally, the FSA has broad supervisory and administrative powers over such matters as licenses, standardstandards of solvency, investments, methodmethods of accounting, form and content of financial statements, minimum capital and surplus requirements, annual and other report filings. In general, such regulation is for the protection of policyholders rather than shareholders. White Mountains believes that it is in compliance with all applicable laws and regulations pertaining to its business that would have a material effect on its financial position in the event on non-compliance.

In accordance with provisions of Swedish law, Sirius International is permitted to transfer up to the full amount of its pre-tax income, subject to certain limitations, into an untaxed reserve referred to as a safety reserve, which equaled $1.3$1.4 billion at December 31, 2006.2007. Under GAAP, an amount equal to the safety reserve, net of the related deferred tax liability established at the Swedish tax rate of 28%, is classified as shareholders’shareholder's equity. Generally, this deferred tax liability is only required to be paid by Sirius International if it fails to maintain predetermined levels of premium writings and loss reserves in future years. As a result of the indefinite deferral of these taxes, Swedish regulatory authorities do not apply any taxes to the safety reserve when calculating solvency capital under Swedish insurance regulations. Accordingly, under local statutory requirements, an amount equal to the deferred tax liability on Sirius International’sInternational's safety reserve ($351398 million at December 31, 2006)2007) is included in solvency capital. Access to the safety reserve is restricted to coverage of aggregate losses and requires the approval of Swedish regulatory authorities.

Bermuda Insurance Regulation

        The Insurance Act 1978 of Bermuda and related regulations, as amended (the "Insurance Act"), regulates the insurance business of WMRe (Bermuda) and Scandinavian Re, and provides that no person may carry on any insurance business in or from within Bermuda unless registered as an insurer under the Insurance Act by the Bermuda Monetary Authority ("BMA"). The BMA, in deciding whether to grant registration, has broad discretion to act as it thinks fit in the public interest. The BMA is required by the Insurance Act to determine whether the applicant is a fit and proper body to be engaged in the insurance business and, in particular, whether it has, or has available to it, adequate knowledge and expertise to operate an insurance business. In addition, the BMA is required by the Insurance Act to determine whether a person who proposes to control 10 percent, 20 percent, 33 percent or 50 percent (as applicable) of the voting powers of a Bermuda registered insurer or its parent company is a fit and proper person to exercise such degree of control.

        The continued registration of an applicant as an insurer is subject to the applicant complying with the terms of its registration and such other conditions as the BMA may impose from time to time. The Insurance Act also grants to the BMA powers to supervise, investigate and intervene in the affairs of insurance companies.

        The Insurance Act imposes on Bermuda insurance companies solvency and liquidity standards as well as auditing and reporting requirements. White Mountains believes that it is in compliance with all applicable laws and regulations pertaining to its business that would have a material effect on its financial position in the event on non-compliance.

Certain Other Bermuda Law Considerations

        White Mountains is an exempted company organized under the Companies Act 1981 of Bermuda (the "Companies Act"). As a result, White Mountains needs to comply with the provisions of the Companies Act regulating the payment of dividends and making of distributions from contributed surplus. A company is prohibited from declaring or paying a dividend, or making a distribution out of contributed surplus, if there are reasonable grounds for believing that:

    (1)
    the company is, or would after the payment be, unable to pay its liabilities as they become due; or

    (2)
    the realizable value of the company's assets would thereby be less than the aggregate of its liabilities and its issued share capital and share premium accounts.

            Under White Mountains' bye-laws, each common share is entitled to dividends if, and when, dividends are declared by its board of directors, subject to any preferred dividend right of the holders of any preference shares. Issued share capital is the aggregate par value of the company's issued shares, and the share premium account is the aggregate amount paid for issued shares over and above their par value. Share premium accounts may be reduced in certain limited circumstances. In addition, the Companies Act regulates return of capital, reduction of capital and any purchase or redemption of shares by White Mountains.

            Although White Mountains is incorporated in Bermuda, it has been designated as a non-resident of Bermuda for exchange control purposes by the BMA. Pursuant to its non-resident status, White Mountains may hold any currency other than Bermuda dollars and convert that currency into any other currency, other than Bermuda dollars, without restriction.

            Shares may be offered or sold in Bermuda only in compliance with the provisions of the Investment Business Act of 2003 and the Exchange Control Act 1972, and related regulations of Bermuda which regulate the sale of securities in Bermuda. In addition, specific permission is required from the BMA pursuant to the provisions of the Exchange Control Act 1972 and related regulations, for all issuances and transfers of securities of Bermuda companies, other than in cases where the BMA has granted a general permission. The BMA in its policy dated June 1, 2005 provides that where any equity securities, including White Mountains' common shares, of a Bermuda company are listed on an appointed stock exchange, general permission is given for the issue and subsequent transfer of any securities of a company from and/or to a non-resident, for as long as any equities securities of such company remain so listed. The New York Stock Exchange is deemed to be an appointed stock exchange under Bermuda law. Notwithstanding the above general permission, the BMA has granted White Mountains permission to, subject to its common shares being listed on an appointed stock exchange, (a) issue and transfer its shares, up to the amount of its authorized capital from time to time, to persons resident and non-resident of Bermuda for exchange control purposes; (b) issue and transfer options, warrants, depositary receipts, rights, and other securities; and (c) issue and transfer loan notes and other debt instruments and options, warrants, receipts, rights over loan notes and other debt instruments to persons resident and non-resident of Bermuda for exchange control purposes.

            Under Bermuda law, exempted companies are companies formed for the purpose of conducting business outside Bermuda from a principal place in Bermuda. As exempted companies, White Mountains may not, without the express authorization of the Bermuda legislature or under a license granted by the Bermuda Minister of Finance, participate in various specified business transactions, including:

      the acquisition or holding of land in Bermuda, except land held by way of lease or tenancy agreement which is required for White Mountains' business and held for a term not exceeding 50 years, or which is used to provide accommodation or recreational facilities for White Mountains' officers and employees and held with the consent of the Bermuda Minister of Finance, for a term not exceeding 21 years;

      the taking of mortgages on land in Bermuda in excess of $50,000;

      the acquisition of any bonds or debentures secured by any land in Bermuda, other than certain types of Bermuda government or public authority securities; or

      subject to some exceptions, the carrying on of business of any kind in Bermuda for which White Mountains is not licensed in Bermuda.

            Under Bermuda law, non-Bermudians (other than spouses of Bermudians) may not engage in any gainful occupation in Bermuda without an appropriate governmental work permit. Work permits may be granted or extended by the Bermuda government upon showing that, after proper public advertisement in most cases, no Bermudian (or spouse of a Bermudian) is available who meets the minimum standard requirements for the advertised position. In 2001, the Bermuda government announced a new policy limiting the duration of work permits to six years, with certain exemptions for key employees. In addition, exempted companies, such as White Mountains, must comply with Bermuda resident representation provisions under the Companies Act which require that a minimum number of offices must be filled by persons who are ordinarily resident in Bermuda.


    RATINGS

    Insurance and reinsurance companies are evaluated by various rating agencies in order to measure each company’scompany's financial strength. Higher ratings generally indicate financial stability and a stronger ability to pay claims. White Mountains believes that strong ratings are important factors in the marketing of insurance and reinsurance products to agents and consumers and ceding companies.

    Rating agencies also evaluate the general creditworthiness of debt securities issued by companies. Their ratings are then used by existing or potential investors to assess the likelihood of repayment on a particular debt issue. White Mountains believes that strong debt ratings are important factors that provide better financial flexibility when issuing new debt or restructuring existing debt.

    32




    The following table presents the financial strength ratings assigned to White Mountains’Mountains' principal insurance and reinsurance operating subsidiaries and the debt ratings for Fund American’s Senior NotesWhite Mountains' principal financial instruments as of February 28, 2007:2008:

    Sirius

    Fund American

    OneBeacon

    Folksamerica Re

    International

    Esurance

    Senior Notes (5)


    A.M. BestBest(1)

    Rating (1)

    “A” (Excellent)

    “A-” (Excellent)

    “A” (Excellent)

    “A” (Excellent)

    “bbb” (Very Good)

    Outlook

    Stable

    Stable

    Stable

    Stable

    Stable


    Standard & Poor’sPoor's(2)


    Moody's(3)
    Fitch(4)
    OneBeacon

    Rating (2)

    Rating

    “A”

    "A" (Excellent)"A" (Strong)

    “A-”"A2" (Good)

    "A" (Strong)

    “A-” (Strong)

    No Rating

    “BBB” (Adequate)

    Outlook

    Outlook

    Stable

    Stable

    Stable

    Stable

    Stable

    Stable

    N/A

    Stable


    Folksamerica









    Moody’s

    Rating

    "A-" (Excellent)

    "A-" (Strong)

    "A3" (Good)

    "A-" (Strong)

    Rating (3)

    Outlook

    “A2”

    StableStableStableStable

    Sirius International








    Rating"A" (Excellent)"A-" (Strong)"A3" (Good)

    “A3” (Good)

    "A-" (Strong)

    Outlook

    “A3” (Good)

    Stable

    “A2” (Good)

    Stable

    “Baa2”

    StableStable

    WMRe (Bermuda)








    Rating"A-" (Excellent)No RatingNo RatingNo Rating
    OutlookStableN/AN/AN/A

    Esurance








    Rating"A-" (Excellent)No RatingNo RatingNo Rating
    OutlookStableN/AN/AN/A

    Fund American Senior Notes(5)








    Rating"bbb" (Adequate)"BBB" (Adequate)"Baa2" (Medium Grade)

    "BBB" (Good)

    Outlook

    Outlook

    Stable

    Stable

    Stable

    Stable

    Stable

    Stable

    Stable

    Stable


    WMRe Senior Notes









    Fitch

    Rating

    "bbb-" (Adequate)

    "BBB-" (Adequate)

    "Baa3" (Medium Grade)

    "BBB" (Good)

    Rating (4)

    Outlook

    “A” (Strong)

    Stable

    “A-” (Strong)

    Stable

    “A-” (Strong)

    Stable

    “A” (Strong)

    “BBB” (Good)

    Stable

    Outlook


    WMRe Preference Shares


    Stable



    Stable



    Stable



    Stable


    Rating

    Stable

    "bb" (Speculative)
    "BB" (Speculative)"Ba2" (Speculative)"BBB-" (Good)
    OutlookStableStableStableStable

    (1)             “A”
    "A" is the third highest of fifteen financial strength ratings, “A-”"A-" is the fourth highest of fifteen financial strength ratings, and “bbb”"bbb" is the ninth highest of twenty-two creditworthiness ratings, "bbb-"is the tenth highest of twenty-two creditworthiness ratings, and "bb" is the twelfth highest of twenty-two creditworthiness ratings assigned by A.M. Best.



    (2)             “A”
    "A" is the sixth and “A-”"A-" is the seventh highest of twenty-one financial strength ratings and “BBB”"BBB" is the ninth highest of twenty-two creditworthiness ratings, "BBB-"is the tenth highest of twenty-two creditworthiness ratings, and "BB" is the twelfth highest of twenty-two creditworthiness ratings assigned by Standard & Poor’s.

    Poor's.

    (3)             “A2”
    "A2" is the sixth and “A3”"A3" is the seventh highest of twenty-one financial strength ratings and “Baa2”"Baa2" is the ninth highest of twenty-one creditworthiness ratings, "Baa3" is the tenth highest of twenty-one creditworthiness ratings, and "Ba2" is the twelfth highest of twenty-one creditworthiness ratings assigned by Moody’s.

    Moody's.

    (4)             “A”
    "A" is the sixth and “A-”"A-" is the seventh highest of twenty-fourtwenty-one financial strength ratings, and “BBB”"BBB" is the ninth highest of twenty-three creditworthiness ratings, and "BBB-"is the tenth highest of twenty-three creditworthiness ratings assigned by Fitch.



    (5)
    The Fund American Senior Notes issued by Fund American are fully and unconditionally guaranteed as to the payment of principal and interest by the Company.

    Company.

    EMPLOYEES

    As of December 31, 2006,2007, White Mountains employed 5,2925,045 persons (consisting of 3640 persons at the Company and its intermediate holding companies, 3,2432,673 persons at OneBeacon, 546522 persons at White Mountains Re, 1,4151,754 persons at Esurance, 2932 persons at WM Advisors, 59 persons at WM Life Re, 56 persons at Galileo and 139 persons at the International American Group companies). Management believes that White Mountains has satisfactory relations with its employees.

    AVAILABLE INFORMATION

    The Company is subject to the informational reporting requirements of the Exchange Act. In accordance therewith, the Company files reports, proxy statements and other information with the SEC. These documents are available at www.whitemountains.com.www.whitemountains.com shortly after such material is electronically filed with or furnished to the SEC. In addition, the Company’sCompany's code of business conduct and ethics as well as the various charters governing the actions of certain of the Company’sCompany's Committees of its Board of Directors, including its Audit Committee, Compensation Committee and its Nominating and Governance Committee, are available at www.whitemountains.com.www.whitemountains.com.

    The Company will provide to any shareholder, upon request and without charge, copies of these documents (excluding any applicable exhibits unless specifically requested). Written or telephone requests should be directed to the Corporate Secretary, White Mountains Insurance Group, Ltd., 80 South Main Street, Hanover, New Hampshire 03755, telephone number (603) 640-2200. Additionally, all such documents are physically available at the Company’sCompany's registered office at Clarendon House, 2 Church Street, Hamilton, HM 11 Bermuda.


    Item 1A.    Risk Factors

    The information contained in this report may contain “forward-looking statements”"forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933 and Section 21 E21E of the Securities Exchange Act of 1934.See“FORWARD-LOOKING STATEMENTS” "FORWARD-LOOKING STATEMENTS"(page 88)95) for specific important factors that could cause actual results to differ materially from those contained in forward-looking statements.The Company’sCompany's actual future results and trends may differ materially depending on a variety of factors including, but not limited to, the risks and uncertainties discussed below.

    Unpredictable catastrophic events could adversely affect our financial condition or results of operations.

    We write insurance and reinsurance policies that cover catastrophic events. Our policies cover unpredictable natural and other disasters, such as hurricanes, windstorms, earthquakes, floods, fires and explosions. In recent years, the frequency of major weather-related catastrophes has increased. Our exposure to catastrophic windstorm damage in the Northeastern United States is the largest single natural risk to our business. In the case of OneBeacon, some extremely remote modeled catastrophic events, or series of catastrophic events, could be of sufficient size to cause OneBeacon to become insolvent, which could adversely effect our financial condition and results of operations. We also have significant exposure to a major earthquake in California earthquakeor Japan and windstorm damage in Northern Europe, the United States Atlantic Coast (i.e., DelawareMassachusetts to Florida) and the United States Gulf Coast region (i.e., Florida to Texas). In addition, we are exposed to losses from terrorist attacks, such as the attacks on the United States on September 11, 2001.

    The extent of losses from a catastrophe is a function of both the total amount of insured exposure in the area affected by the event and the severity of the event. Increases in the value of insured property, the effects of inflation and changes in cyclical weather patterns may increase the severity of claims from catastrophic events in the future. Claims from catastrophic events could reduce our earnings and cause substantial volatility in our results of operations for any fiscal quarter or year and adversely affect our financial condition. Our ability to write new insurance and reinsurance policies could also be impacted as a result of corresponding reductions in our surplus levels.

    We manage our exposure to catastrophic losses by limiting the aggregate insured value of policies in geographic areas with exposure to catastrophic events and by estimating a PML for many different catastrophe scenarios and by buying reinsurance. To manage and analyze aggregate insured values and PML, we use a variety of tools, and analyses, including catastrophe modeling software packages. Our estimates of PML are dependent on many variables, including assumptions about the demand surge and storm surge, loss adjustment expenses, insurance-to-value and storm intensity in the aftermath of weather-related catastrophes utilized to model the event, the relationship of the actual event to the modeled event and the quality of data provided to us by ceding companies (in the case of our reinsurance operations). Accordingly, if our assumptions about the variables are incorrect, the losses we might incur


    from an actual catastrophe could be materially higher than our expectation of losses generated from modeled catastrophe scenarios and our financial condition and results of operations could be materially adversely affected.

    We may not be able to successfully alleviate risk through reinsurance and retrocessional arrangements. Additionally, we may be unable to collect all amounts due from our reinsurers under our existing reinsurance and retrocessional arrangements.

    We attempt to limit our risk of loss through reinsurance and retrocessional arrangements. Retrocessional arrangements refer to reinsurance purchased by a reinsurer to cover its own risks assumed from primary ceding companies. The availability and cost of reinsurance and retrocessional protection is subject to market conditions, which are outside of our control. As a result, we may not be able to successfully alleviate risk through these arrangements, which could have a material adverse effect on our financial condition and results of operations.

    We are not relieved of our obligation to our policyholders or ceding companies by purchasing reinsurance. Accordingly, we are subject to credit risk with respect to our reinsurance and retrocessions in the event that a reinsurer is unable to pay amounts owed to us as a result of a deterioration in its financial condition. A number of reinsurers in the industry experienced such a deterioration in the aftermath of the 2001 terrorist attacks and the active 2005 hurricane season. It is possible that one or more of our reinsurers will be significantly adversely affected by future significant loss events, causing them to be unable to pay amounts owed to us. We also may be unable to recover amounts due under our reinsurance and retrocessional arrangements if our reinsurers choose to withhold payment due to a dispute or other factors beyond our control.


    Our loss reserves maybemay be inadequate to cover our ultimate liability for losses and as a result our financial results could be adversely affected.

    We are required to maintain adequate reserves to cover our estimated ultimate liabilities for loss and loss adjustment expenses. Loss and LAE reserves are typically comprised of (1) case reserves for claims reported and (2) IBNR reserves for losses that have occurred but for which claims have not yet been reported, or IBNR, which include a provision for expected future development on case reserves. These reserves are estimates based on actuarial and statistical projections of what we believe the settlement and administration of claims will cost based on facts and circumstances then known to us. Because of the uncertainties that surround estimating loss and LAE reserves, we cannot be certain that our reserves are adequate and actual claims and claim expenses paid might exceed our reserves due to the uncertainties that surround estimating loss and LAE reserves. If we determine in the future that our reserves are insufficient to cover our actual loss and LAE, we would have to strengthen our reserves, which could have a material adverse effect on our financial condition and results of operations.

    For further discussion of our loss and LAE, including our asbestos and environmental reserves, see "Loss and Loss Adjustment Expenses” Expenses" in "CRITICAL ACCOUNTING ESTIMATES” ESTIMATES" in Item 7.

    We may not maintain favorable financial strength or creditworthiness ratings which could adversely affect our ability to conduct business.

    Third party rating agencies assess and rate the financial strength, including claims-paying ability, of insurers and reinsurers. These ratings are based upon criteria established by the rating agencies and are subject to revision at any time at the sole discretion of the agencies. Some of the criteria relate to general economic conditions and other circumstances outside the rated company’scompany's control. These financial strength ratings are used by policyholders, agents and brokers as an important means of assessing the suitability of insurers as business counterparties and have become an increasingly important factor in establishing the competitive position of insurance companies. These financial strength ratings do not refer to our ability to meet non-insurance obligations and are not a recommendation to purchase or discontinue any policy or contract issued by us or to buy, hold or sell our securities.

    Rating agencies periodically evaluate us to confirm that we continue to meet the criteria of the ratings previously assigned to us. See “RATINGS” "RATINGS" in Item 1 for a summary of financial strength ratings on our significant subsidiaries and creditworthiness ratings on our Senior Notes.financial instruments. A downgrade or withdrawal of our financial strength ratings could severely limit or prevent our insurance subsidiaries from writing new insurance or reinsurance policies or renewing existing insurance policies, which could have a material adverse effect on our financial condition and results of operations. A downgrade or withdrawal of our creditworthiness ratings could severely limit our ability to raise new debt or could make new debt more costly and/or have more restrictive conditions.


    Additionally, the majority of White Mountains Re’sRe's assumed reinsurance contracts contain optional cancellation, commutation and/or funding provisions that would be triggered if A.M. Best and/or S&P were to downgrade the financial strength ratings of either Folksamerica Re or Sirius International below “A-”"A-" or if the surplus of Folksamerica or Sirius International were to substantially decrease (generally, in excess of 20%). A client may choose to exercise these rights depending on, among other things, the reasons for such a downgrade, the extent of the downgrade, the prevailing market conditions, the degree of unexpired coverage, and the pricing and availability of replacement reinsurance coverage. We cannot predict in advance how many of our clients would actually exercise such rights or what effect such cancellations would have on our financial condition, results of operations and/or liquidity, but such an effect could be materially adverse.

    Our debt, preferred stock and related service obligations could adversely affect our business.

    As of December 31, 2006,2007, we had approximately $1,108$1,193 million face value of indebtedness, and $320$300 million face value of mandatorily redeemable preferred stock and $250 million face value of non-cumulative perpetual preference shares outstanding. In connection with the OneBeacon Offering, we established and funded trusts that are solely dedicated to the payment of dividends and redemption amounts of our outstanding mandatorily redeemable preferred stock with a deposit of U.S. government securities.

    Our ability to meet our debt and related service obligations will depend on our future performance, which will be affected by financial, business, economic and other factors. We will not be able to control many of these factors, such as economic conditions and governmental regulation. We cannot be certain that our earnings will be sufficient to allow us to pay the principal and interest on our debt and meet our other obligations. If we do not have enough cash, we may be required to refinance all or part of our existing debt, sell assets, borrow more cash or sell equity. We cannot assure you that we will be able to accomplish any of these alternatives on terms acceptable to us, if at all.


    We could incur additional indebtedness and issue additional preferred stock in the future. To the extent new debt, new preferred stock and other obligations are added to our and our subsidiaries’subsidiaries' current debt and preferred stock levels, the risks described in the previous paragraph would increase.

    Our investment portfolio may suffer reduced returns or losses which could adversely affect our results of operations and financial condition. Any increase in interest rates or volatility in the equity and debt markets could result in significant losses in the fair value of our investment portfolio.

    Our investment portfolio consists of fixed maturity securities, short-term investments, common equity securities and other investments such as hedge funds, limited partnerships and private equities. Our investment selections are designed to maximize after-tax, total risk-adjusted return over the long term; however, investing entails substantial risks. We cannot assure you that we will achieve our investment objectives, and our investment performance may vary substantially over time.

    Investment returns are an important part of our growth in book value, and fluctuations in the fixed income or equity markets could impair our results of operations or financial condition. A significant period of time normally elapses between the receipt of insurance premiums and the disbursement of insurance claims. During this time, we generate investment income, consisting primarily of interest earned on fixed maturity investments and dividends earned on equity securities, by investing our capital as well as insurance premiums allocated to support unpaid loss and LAE reserves. We also recognize unrealized investment gains and losses on the securities we hold in our investment portfolio and we generate investment gains and losses from sales of securities from our investment portfolio.

    The investment income and fair market value of our investment portfolio are affected by general economic and market conditions, including fluctuations in interest rates and volatility in the stock market. Interest rates are highly sensitive to many factors, including governmental monetary policies, domestic and international economic and political conditions and other factors beyond our control. Although we attempt to manage the risks of investing in a changing interest rate environment, we may not be able to effectively mitigate interest rate sensitivity. In particular, a significant increase in interest rates could result in significant losses, realized or unrealized, in the fair value of our investment portfolio and, consequently, could have an adverse affect on our results of operations. In addition, we are exposed to changes in the level or volatility of equity prices that affect the value of securities or instruments that derive their value from a particular equity security, a basket of equity securities or a stock index. Further, because a portion of our investment portfolio is invested in securities denominated in currencies other than U.S. dollar, the value of our portfolio is sensitive to changes in foreign currency rates. These conditions are outside of our control and could adversely affect the value of our investments and our results of operations and financial condition.


    The property and casualty insurance and reinsurance industries are highly competitive and we may not be able to compete effectively in the future.

    The property and casualty insurance and reinsurance industries are highly competitive and have, from time to time, experienced severe price competition. OneBeacon competes with numerous regional and national insurance companies, including The St. Paul Travelers Companies, Inc., Zurich Financial Services Group, CNA Financial Corporation, Hartford Financial Services Group, Inc., The Hanover Insurance Group, Inc., W.R. Berkley Corporation, The Chubb Corporation, The Progressive Corporation, Allstate Insurance Company, Liberty Mutual, American International Group, Inc. and the regional Farm Bureaus. White Mountains Re competes with numerous reinsurance companies throughout the world, including ACE Limited, Arch Capital Group Ltd., Endurance Specialty Holdings Ltd., Everest Re Group, Ltd., Hannover Ruckversicherung AG, Lloyd’sLloyd's of London, Munich Re Group, Partner Re Ltd., Platinum Underwriters Holdings Ltd., Renaissance Re Holdings Ltd., Swiss Re Group, Transatlantic Holdings, Inc., XL Capital Ltd and General Reinsurance Corporation. Esurance competes with national and regional personal automobile insurance companies, though Esurance’sEsurance's main competition comes from other direct writers like Progressive, GEICO, and 21st Century. Many of these competitors have greater financial, marketing and management resources than we do and have established long-term and continuing business relationships throughout the insurance industry, which can be a significant competitive advantage for them.

    The agents upon whom OneBeacon relies compete with direct writers of insurance, who are often able to offer substantial discounts in pricing as compared to OneBeacon’sOneBeacon's insurance products. If OneBeacon’sOneBeacon's agents experience increased competition from direct writers of insurance, we in turn could be adversely affected if OneBeacon’sOneBeacon's agents are unable to maintain a competitive position in their respective markets. In addition, substantial new capital and competitors have entered the reinsurance market in recent months,years, and we expect to face further competition in the future. If we are unable to maintain our competitive position, our insurance and reinsurance businesses may be adversely affected and we may not be able to compete effectively in the future.


    We may suffer losses from unfavorable outcomes from litigation and other legal proceedings.

    In the ordinary course of business, we are subject to litigation and other legal proceedings as part of the claims process, the outcomes of which are uncertain. We maintain reserves for these legal proceedings as part of our loss and LAE reserves. We also maintain separate reserves for legal proceedings that are not related to the claims process. In the event of an unfavorable outcome in one or more legal matters, our ultimate liability may be in excess of amounts we have currently reserved for and such additional amounts may be material to our results of operations and financial condition. For a description of our material legal proceedings, see "Item 3. Legal Proceedings.”Proceedings."

    As industry practices and legal, judicial, social and other conditions change, unexpected and unintended issues related to claims and coverage may emerge. These issues may adversely affect our financial condition and results of operations by either extending coverage beyond our underwriting intent or by increasing the number and size of claims. In some instances, these changes may not become apparent until some time after we have issued insurance and reinsurance contracts that are affected by the changes.

    Regulation may restrict our ability to operate.

    The insurance and reinsurance industries are subject to extensive regulation under U.S., state and foreign laws. Governmental agencies have broad administrative power to regulate many aspects of the insurance business, which include premium rates, marketing practices, advertising, policy forms and capital adequacy. These governmental agencies are concerned primarily with the protection of policyholders rather than shareholders. Insurance laws and regulations impose restrictions on the amount and type of investments, prescribe solvency standards that must be met and maintained and require the maintenance of reserves. In our insurance underwriting, we rely heavily upon information gathered from third parties such as credit report agencies and other data aggregators. The use of this information is also highly regulated and any changes to the current regulatory structure could materially affect how we underwrite and price premiums.

    Changes in laws and regulations may restrict our ability to operate and/or have an adverse effect upon the profitability of our business within a given jurisdiction. For example, legislation has been recently passed in Florida that significantly changes the reinsurance protection provided by the Florida Hurricane Catastrophe Fund to companies that write business in Florida. The new legislation also contains a provision that will disallow insurers that write homeowners insurance elsewhere in the United States to write automobile insurance in Florida unless they also write homeowners insurance in Florida. The impact of the new legislation, which could be adverse, upon White Mountains’Mountains' insurance and reinsurance business in Florida cannot be determined until regulations interpreting the


    legislation are promulgated. In addition, state and Federal legislation has been proposed to establish catastrophe funds and underwriting in coastal areas which could impact our business.

    Government authorities are continuing to investigate the insurance and reinsurance industries, which may adversely affect our business.

    Recently, the insurance industry has been heavily scrutinized by various regulatory bodies, including State Attorneys General and state insurance departments, for alleged illegal conduct surrounding a number of topics, including producer compensation arrangements and the sale and use of finite reinsurance.

    During 2005 and 2004, OneBeacon received subpoenas from the Attorneys General of Massachusetts, New York and Connecticut requesting documents and seeking information relating to the conduct of business between insurance brokers and OneBeacon. Some of our other subsidiaries have also received information requests from various state insurance departments regarding producer compensation arrangements. We have cooperated with all of these subpoenas and information requests. We believe these requests to be part of the industry-wide investigation regarding industry sales practices. These investigations of the insurance and reinsurance industries, whether involving our companies specifically or not, together with any legal or regulatory proceedings related settlement, or industry reforms, may materially adversely affect our business and future prospects.


    In recent years we have successfully created shareholder value through acquisitions and dispositions of insurance and reinsurance entities. We may not be able to continue to create shareholder value through such transactions in the future.

    In the past several years, we have completed numerous acquisitions and dispositions of insurance and reinsurance entities, many of which have contributed significantly to our growth in tangible book value. Failure to identify and complete future acquisition and disposition opportunities could limit our ability to achieve our target returns. Even if we were to identify and complete future acquisition opportunities, there is no assurance that such acquisitions will ultimately achieve their anticipated benefits.

    We may become subject to taxes in Bermuda after 2016.

    We may become subject to taxes in Bermuda after 2016. We have received a standard assurance from the Bermuda Minister of Finance, under Bermuda’sBermuda's Exempted Undertakings Tax Protection Act 1966, that if any legislation is enacted in Bermuda that would impose tax computed on profits or income, or computed on any capital asset, gain or appreciation, or any tax in the nature of estate, duty or inheritance tax, then the imposition of any such tax will not be applicable to us or to any of our operations or our shares, debentures or other obligations until March 28, 2016. Given the limited duration of the Minister of Finance’sFinance's assurance, we cannot be certain that we will not be subject to any Bermuda tax after March 28, 2016. In the event that we become subject to any Bermuda tax after such date, it would have a material adverse effect on our financial condition and results of operations.

    Changes in tax laws or tax treaties may cause more of the income of certain non-U.S. companies in our group to become subject to taxes in the United States.

    The taxable income of our U.S. subsidiaries is subject to U.S. Federal, state and local income taxtaxes and other taxes. The income of the non-U.S. companies in our group is generally not subject to tax in the United States other than withholding taxes on interest and dividends. Certain of our non-U.S. companies are eligible for the benefits of tax treaties between the United States and other countries. We believe our non-U.S. companies will continue to be eligible for treaty benefits. However, it is possible that factual changes or changes to U.S. tax laws or changes to tax treaties that presently apply to our non-U.S. companies could impact income subject to tax in the United States. Similarly, changes to the applicable tax laws, treaties or regulations of other countries could subject the income of members of our group to higher rates of tax outside the United States.

    We have significant foreign operations that expose us to certain additional risks, including foreign currency risks and political risk.

    White Mountains Re, in particular Sirius International and WMRe (Bermuda), conducts a significant portion of its business outside of the United States. As a result, a substantial portion of our assets, liabilities, revenues and expenses are denominated in currencies other than the U.S. dollar and are therefore subject to foreign currency risk. Our foreign currency risk cannot be eliminated entirely and significant changes in foreign exchange rates may adversely affect our financial condition or our results of operations.

    Our foreign operations are also subject to legal, political and operational risks that may be greater than those present in the United States. As a result, our operations at these foreign locations could be temporarily or permanently disrupted.

    We depend on our key personnel to manage our business effectively and they may be difficult to replace.

    Our performance substantially depends on the efforts and abilities of our management team and other executive officers and key employees. Furthermore, much of our competitive advantage is based on the expertise, experience and know-how of our key management personnel. We do not have fixed term employment agreements with any of our key employees nor key man life insurance and the loss of one or more of these key employees could adversely affect on our business, results of operations and financial condition. Our success also depends on the ability to hire and retain additional personnel. Difficulty in hiring or retaining personnel could adversely affect our results of operations and financial condition.


    Bermuda law differs from the laws in effect in the United States and may afford less protection to shareholders.

    We are organized under the laws of Bermuda, and a portion of our assets will be located outside the United States. As a result, it may not be possible for our shareholders to enforce court judgments obtained in the United States against us based on the civil liability provisions of the Federal or state securities laws of the United States, either in Bermuda or in countries other than the United States where we will have assets. In addition, there is some doubt as to whether the courts of Bermuda and other countries would recognize or enforce judgments of U.S. courts obtained against us or our directors or officers based on the civil liabilities provisions of the Federal or state securities laws of the United States or would hear actions against us or those persons based on those laws.

    Our corporate affairs are governed by the Companies Act 1981 of Bermuda, or the Companies Act. The Companies Act differs in some material respects from laws generally applicable to U.S. corporations and shareholders, including the provisions relating to interested directors, amalgamations, mergers and acquisitions, takeovers, shareholder lawsuits and indemnification of directors. Generally, the duties of directors and officers of a Bermuda company are owed to the company only. Shareholders of Bermuda companies generally do not have rights to take action against directors or officers of the company and may only do so in limited circumstances. Class actions and derivative actions are generally not available to shareholders under Bermuda law. The Bermuda courts, however, would ordinarily be expected to permit a shareholder to commence an action in the name of a company to remedy a wrong to the company where the act complained of is alleged to be beyond the corporate power of the company or illegal, or would result in the violation of the company’scompany's memorandum of association or bye-laws. Furthermore, consideration would be given by a Bermuda court to acts that are alleged to constitute a fraud against the minority shareholders or, for instance, where an act requires the approval of a greater percentage of the company’scompany's shareholders than that which actually approved it.

    When the affairs of a company are being conducted in a manner that is oppressive or prejudicial to the interests of some part of the shareholders, one or more shareholders may apply to the Supreme Court of Bermuda, which may make such order as it sees fit, including an order regulating the conduct of the company’scompany's affairs in the future or ordering the purchase of the shares of any shareholders by other shareholders or by the company. Additionally, under our bye-laws and as permitted by Bermuda law, each shareholder has waived any claim or right of action against our directors or officers for any action taken by directors or officers in the performance of their duties, except for actions involving fraud or dishonesty. In addition, the rights of our shareholders and the fiduciary responsibilities of our directors under Bermuda law are not as clearly established as under statutes or judicial precedent in existence in jurisdictions in the United States, particularly the State of Delaware. Therefore, our shareholders may have more difficulty protecting their interests than would shareholders of a corporation incorporated in a jurisdiction within the United States.

    The reinsurance business historically has been cyclical and, in the future, we expect to experience periods with excess underwriting capacity and unfavorable premium rates, terms and conditions.

            Historically, reinsurers have experienced significant fluctuations in operating results due to competition, frequency of occurrence or severity of catastrophic events, levels of capacity, general economic conditions and other factors. The supply of reinsurance is related to prevailing prices, the level of insured losses and the level of industry surplus which, in turn, may fluctuate in response to changes in rates of return earned in the reinsurance industry. As a result, the reinsurance business historically has been a cyclical industry characterized by periods of intense price competition due to excess underwriting capacity as well as periods when shortages of capacity permitted favorable premium rate levels. For example, the industry experienced a soft casualty market of lower prices and less favorable terms from 1997 to 2001 during which profitability suffered while the losses incurred from the 2005 U.S. hurricanes triggered price increases. In addition to these considerations, changes in the frequency and severity of losses suffered by insureds and insurers significantly affect the reinsurance industry cycle. Any of these factors could lead to a significant reduction in premium rates, less favorable contract terms, fewer submissions for our underwriting capacity and potential regulatory response. We expect to continue to experience the effects of the industry's cyclicality.

    We are largely dependent upon our ceding companies' evaluation of risk.

            White Mountains Re, like other reinsurance companies that write treaty reinsurance, generally does not evaluate separately each of the individual risks assumed under our reinsurance contracts. As such, we are largely dependent upon the cedents' original underwriting decisions. We are subject to the risk that the cedents may not have adequately or accurately evaluated the risks that they have insured, and we have reinsured, and that the premiums


    ceded may not adequately compensate us for the risks we assume. If our reserves are insufficient to cover our actual loss and LAE arising from our treaty reinsurance business, we would have to strengthen our reserves and incur charges to our earnings. These charges could be significant and could have a material adverse effect on our results of operations and financial condition.

    We have surety bonds in Latin America and write credit and bond reinsurance that could expose us to an economic downturn, or changes to the regulatory or legal environment, in certain countries and regions as a whole.

            White Mountains, through Folksamerica, has run-off operations that include a material amount of Latin American facultative surety exposure (our "Surety Book"). Surety bonding describes a class of business where insurance companies guarantee various contractual commitments assumed by contractors and other businesses. The majority of Folksamerica's Surety Book is comprised of performance bonds, which is insurance obtained by service providers, such as construction firms, to protect against their failure to complete service engagements according to contractual terms. As of January 31, 2008, the maximum certificate or bonding value in our Surety Book (a measurement which does not factor in the percentage to completion of any of the projects supported by the bonds) was approximately $750 million. Approximately 81% of our Surety Book is represented by contracts in Colombia and 13% is represented in Brazil. While our Surety Book is comprised of a large number of contracts with relatively small individual exposures, a severe economic downturn that adversely affects the capital supply or business environment in Colombia or Brazil individually, or Latin America generally, or a significant shift in the regulatory or legal environments governing access to collateral in these markets, could have a material adverse effect on our results of operations and financial condition. An example of this type of a regional downturn is the Asian financial crisis that occurred in the mid-to-late 1990s principally affecting Thailand, South Korea and Hong Kong.

            In addition, White Mountains Re, through Sirius International, writes credit and bond reinsurance, mostly on companies with worldwide operations. Most debtors are based in Europe, with companies in Germany, France and Italy representing approximately 40% of White Mountains Re's exposure. The bulk of the business is traditional short term commercial credit insurance, covering pre-agreed domestic and export sales of goods and services with typical coverage periods of 60 to 120 days.

            Losses under these policies (protection of undisputed debts against declared insolvency and protracted default) are closely correlated to reductions in a respective country's gross national product. As such, a recession that occurs in a relatively short period of time and impacts multiple countries could result in higher than expected losses. As of December 31, 2007, White Mountains Re's contractual loss exposure for this business is approximately $1 billion. However, because of the short-term nature of this business, ceding companies can actively adjust credit exposures and substantially mitigate the effect of an economic crisis or a major bankruptcy. The limit of liability given above does not consider the positive impact of dynamic limit management nor does it include the credit for recoveries.

    Item 1B.    Unresolved Staff Comments

    As of the date of this report, the Company had no unresolved comments from the Commission staff regarding its periodic or current reports under the Exchange Act.

    Item 2.    Properties
                              Properties

    The Company maintains two professional offices in Hamilton, Bermuda which serve as its headquarters and its registered office. The Company’sCompany's principal executive office is in Hanover, New Hampshire. In addition, the Company maintains a professional officeoffices in Guilford, Connecticut, which houseshouse its investment and corporate finance functions.

    The United States headquarters of OneBeacon is located in Canton, Massachusetts, while its principal executive office is located in Minnetonka, Minnesota. OneBeacon also maintains branch offices in various cities throughout the United States.

    White Mountains Re’sRe's headquarters is in Hamilton, Bermuda and its principal executive office is located in Guilford, Connecticut.New York, New York. Folksamerica is headquartered in New York, New York with branch offices in various cities throughout the United States and in Toronto, Canada. Sirius International is headquartered in Stockholm, Sweden with various branch offices in Europe and Asia. WMRUS maintains officesan office in Dublin, Ireland and Hamilton, Bermuda. Esurance is headquartered in San Francisco, California with various offices throughout the United States.


    The Company’sCompany's headquarters, registered office, principal executive office and investment and corporate finance offices are leased. Sirius International’sInternational's home office in Sweden and substantially all of its branch offices, as well as WMRUS’s officesWMRUS's office in Ireland and Bermuda, are leased. Folksamerica’sFolksamerica's home office and its branch offices are leased as well. OneBeacon owns its home office. Most of OneBeacon’sOneBeacon's branch offices are leased with the exception of branch offices located in New York. Esurance’sEsurance's home office and its branch offices are leased. Management considers its office facilities suitable and adequate for its current level of operations.

    Item 3.    Legal Proceedings

    White Mountains, and the insurance and reinsurance industry in general, are subject to litigation and arbitration in the normal course of business. Other than those items listed below, White Mountains was not a party to any material litigation or arbitration other than as routinely encountered in claims activity, none of which is expected by management to have a material adverse effect on its financial condition and/or cash flows.

    On November 1, 2001,OneBeacon

            In August 2004, OneBeacon transferredasserted claims against Liberty Mutual in the Court of Common Pleas in Philadelphia, Pennsylvania (the "Court") for breach of contract and negligence with respect to agreements with Liberty Mutual (the "Liberty Agreements"). The portion of the contract claim relating to OBIC was submitted to arbitration and the Court stayed the remaining claims, including OneBeacon's claims on behalf of its regional agency business, agents and operationsother insurance subsidiaries that were signatories to the Liberty Agreements, pending resolution of the arbitration. In August 2007, the arbitration panel issued an award in 42 states andfavor of OneBeacon on the portion of the breach of contract claim submitted to it finding that Liberty Mutual breached the Liberty Agreements. The panel awarded OneBeacon $4.5 million plus interest.

            Subsequent to the award, in September 2007, Liberty Mutual filed petitions in the U.S. District Court for the District of ColumbiaMassachusetts ("USDC") and the Court to vacate the arbitral award and dismiss or arbitrate the remaining Court claims. In October 2007, OneBeacon (on behalf of its other insurance subsidiaries that were signatories to the Liberty Agreements) filed suit against Liberty Mutual Insurance Group (“in Suffolk County Superior Court in Massachusetts to recover damages caused by Liberty Mutual”) pursuant toMutual's claims conduct. Concurrently, a renewal rights agreement (the “Liberty Agreement”), which expireddemand for arbitration was served on October 31, 2003. OneBeacon is in a dispute with Liberty Mutual over certain coststo preserve the rights and interests of OneBeacon (on behalf of the same subsidiaries). In December 2007, the Court confirmed the arbitral award. Liberty Mutual claims it incurredhas appealed the Court's confirmation of the award to the Pennsylvania Superior Court. Liberty Mutual's motion to vacate the award is still pending in connection withUSDC. Resolution of the Liberty Agreement.outstanding motions is expected in the near future.

            In January 2005 Liberty Mutual asserts that these costs are partinitiated arbitration against OneBeacon (the "ULAE Arbitration") seeking payment of unallocated loss adjustment expenses (“ULAE”) due Liberty Mutualapproximately $67 million relating to claims-related services under the Liberty Agreement. Liberty Mutual further asserts that ULAE on charges previously billed to and settled by OneBeacon since the inception of the Liberty Agreement should be retroactively recast in addition to changing the calculation of ULAE charges for the period not yet settled. OneBeacon believes that the recast charges, which are significantly higher than prior ULAE calculations, and the calculation of ULAE charges for the period not yet settled are inconsistent with the terms of the Liberty Agreement and with standard industry definitions of ULAE. The amount of additional ULAE Liberty Mutual claims that it incurred under the Liberty Agreement totals approximately $68 million. Liberty Mutual has netted amounts billed under the ULAE dispute against amounts otherwise payable to OneBeacon. As of December 31, 2006, OneBeacon has recorded in its loss and LAE reserves an estimate of ULAE expenses due Liberty Mutual on a basis that it believes is consistent with the terms of the Liberty Agreement and with standard industry definitions of ULAE. In January 2006, Liberty Mutual initiated an arbitration proceeding against OneBeacon with respect to this dispute, the ULAE Arbitration. The initial organizational meeting on the ULAE arbitration was held in February 2007 and the final hearing is scheduled for April 2008.

    Agreements. In September 2006, OneBeacon initiated an arbitration against Liberty Mutual (and Peerless Insurance Company)(the "Reinsurance Arbitration") seeking payment of approximately $57 million relating to reinsurance premiums, ceding commissions, recoveries and commutations due to OneBeacon fromarrangements under the Liberty Mutual pursuant to the terms and conditions of the rewritten indemnity reinsurance agreement. To date, Liberty Mutual has refused to pay, asserting that it is entitled to an offset against the ULAE amounts disputed by OneBeacon and subject to the ULAE arbitration. The parties are in the process of selecting an arbitration panel and the dates for the arbitration hearing have not yet been scheduled.Agreements. In January 2007, this arbitrationthe Reinsurance Arbitration was consolidated into the ULAE arbitration.

    OneBeacon Insurance Group LLC and OBIC also have asserted claims against Liberty Mutual (and Peerless Insurance Company)Arbitration. In July 2007, the reinsurance payment issues in the CourtReinsurance Arbitration were favorably resolved. Arbitration hearings regarding ULAE issues and damages related thereto are scheduled to occur in the second and third quarters of Common Pleas for Philadelphia County, Pennsylvania, or the Court, in which they assert that Liberty Mutual (and Peerless Insurance Company) breached the Pre-Closing Administrative Services Agreement, handled claims files negligently, breached fiduciary duties and were unjustly enriched. The Court has stayed those claims pending the resolution2008, respectively.

            As of the arbitration between OBIC and Liberty Mutual for breach of contract. The arbitration hearing commenced in November 2006 and will continue in May 2007.

    December 31, 2007, OneBeacon believes that its loss and LAE reserves are sufficient to cover reasonably anticipated outcomes of all related disputes with Liberty Mutual.

    Esurance

            On November 29, 2007, Dennis J. Czerwinski filed a lawsuit against Esurance Property and Casualty Insurance Company and Esurance Insurance Company in the U.S. District Court, Eastern District of Wisconsin, Milwaukee Division alleging violations of the Fair Credit Reporting Act ("FCRA") and seeking class certification. Czerwinski alleged that Esurance's accessing of consumer credit reports in connection with prescreened offers of insurance violated the FCRA because the offers allegedly did not qualify as firm offers of insurance. The proposed class consists of all persons in the United States to whom Esurance sent a solicitation in the form of the one mailed to Czerwinski after February 1, 2006 through the date a class is certified. Esurance is disputing the allegations and intends to vigorously defend this action.

    Item 4.    Submission of Matters to a Vote of Security Holders

    There were no matters submitted to a vote of the Company’sCompany's shareholders during the fourth quarter of 2006.2007.


    Executive Officers of the Registrant and its Subsidiaries (As of February 28, 2007)2008)

    Name

     

    Position

     

    Age

     

    Executive officer since

     

     Position

     Age
     Executive
    officer
    since

    Raymond Barrette

     

    Chairman and CEO

     

    56

     

    2007

     

     Chairman and CEO 57 2007
    Reid T. Campbell Managing Director of White Mountains Capital, Inc. 40 2007

    Charles B. Chokel

     

    Managing Director and Chief Financial Officer of White Mountains Re

     

    53

     

    2002

     

     Managing Director and Chief Financial Officer of
    White Mountains Re
     54 2002

    David T. Foy

     

    Executive Vice President and Chief Financial Officer

     

    40

     

    2003

     

     Executive Vice President and Chief Financial Officer 41 2003

    G. Thompson Hutton

     

    President and CEO of White Mountains Re

     

    51

     

    2006

     

    Robert R. Lusardi

     

    Executive Vice President and Managing Director of White Mountains Capital, Inc.

     

    50

     

    2005

     

     President and CEO of White Mountains Financial Services LLC 51 2005

    T. Michael Miller

     

    President and CEO of OneBeacon

     

    48

     

    2005

     

     President and CEO of OneBeacon 49 2005

    J. Brian Palmer

     

    Chief Accounting Officer

     

    34

     

    2001

     

     Chief Accounting Officer 35 2001

    Robert L. Seelig

     

    Vice President and General Counsel

     

    38

     

    2002

     

     Vice President and General Counsel 39 2002

    Gary C. Tolman

     

    President and CEO of Esurance

     

    55

     

    2005

     

     President and CEO of Esurance 56 2005
    Allan L. Waters President and CEO of White Mountains Re 50 2007

            

    All executive officers of the Company and its subsidiaries are elected by the Board for a term of one year or until their successors have been elected and have duly qualified. Information with respect to the principal occupation and relevant business experience of the Executive Officers follows:

    Mr. Barrettehas served as Chairman and CEO of the Company since January 2007. He served as a director of the Company from 2000 to 2005 and was re-appointed as a director in August 2006. He previously served as President and CEO of the Company from 2003 to 2005, as CEO of OneBeacon from 2001 to 2002, as President of the Company from 2000 to 2001 and as Executive Vice President and Chief Financial Officer of the Company from 1997 to 2000. Mr. Barrette also serves as a director of OneBeacon Ltd.

    Mr. Campbell has served as a Managing Director of White Mountains Capital, Inc. since January 2004. He joined White Mountains in 1994 and has served in a variety of financial management positions with White Mountains. Prior to joining White Mountains, Mr. Campbell spent three years with KPMG LLP. Mr. Campbell also serves as a director of OneBeacon Ltd.

    Mr. Chokelhas served as Managing Director and Chief Financial Officer of White Mountains Re since August 2006. Prior to that he served as Managing Director of White Mountains Capital, Inc. since September 2003, as Managing Director and Chief Administrative Officer of OneBeacon since January 2003 and as Managing Director of OneBeacon since March 2002. Prior to joining OneBeacon, Mr. Chokel served as Executive Vice President and Chief Financial Officer of Conseco, Inc. from March 2001 to March 2002 and as Co-CEO of The Progressive Corporation from January 1999 to January 2001. Mr. Chokel joined Progressive in 1978.

    Mr. Foywas appointed Executive Vice President and Chief Financial Officer of the Company in April 2003. Prior to joining White Mountains in 2003, Mr. Foy served as Senior Vice President and Chief Financial Officer of Hartford Life Inc. and joined that company in 1993. Prior to joining Hartford Life, Mr. Foy was with Milliman and Robertson, an actuarial consulting firm. Mr. Foy also serves as the Chairman of Symetra and as a director of OneBeacon Ltd.

    Mr. Hutton Lusardiwas appointed President and CEO of White Mountains Re in February 2006. Prior to joining White Mountains, since 2000 Mr. Hutton served as a board member and consultant to private equity investors and their portfolio companies, first as a Venture Partner with Trident Capital and then as Managing Partner of Thompson Hutton, LLC. From 1990-2000, Mr. Hutton served as President and CEO of Risk Management Solutions, Inc. and was formerly a management consultant at McKinsey and Company, Inc.

    Mr. Lusardi was appointed Executive Vice President and Managing Director of White Mountains Capital, Inc.Financial Services LLC in February 2005. Prior to joining White Mountains, Mr. Lusardi was an Executive Vice President of XL Capital Ltd, most recently as Chief Executive of Financial Products and Services. Prior to joining XL Capital Ltd, Mr. Lusardi was a Managing Director at Lehman Brothers, where he was employed from 1980 to 1998. Mr. Lusardi also serves as a director of OneBeacon Ltd., Symetra and Primus Guaranty, Ltd.

    Mr. Millerwas appointed President and CEO of OneBeacon in July 2005 and joined OneBeacon as its Chief Operating Officer in April 2005. Mr. Miller also serves as a director of OneBeacon Ltd. Prior to joining White Mountains, Mr. Miller spent 10 years at St. Paul Travelers, most recently as Co-Chief Operating Officer. Prior to joining St. Paul Travelers, Mr. Miller spent 14 years with The Chubb Corporation.

    Mr. Palmerhas served as Chief Accounting Officer since 2001 and previously served as Controller of a subsidiary of White Mountains from 1999 to 2001. Prior to joining White Mountains in 1999, Mr. Palmer was with PricewaterhouseCoopers LLP.

    Mr. Seeligis Vice President and General Counsel of the Company. Prior to joining White Mountains in September 2002, Mr. Seelig was with the law firm of Cravath, Swaine & Moore.

    Mr. Tolmanhas served as President and CEO of Esurance since 2000. Prior to joining Esurance, Mr. Tolman was with Talegen Holdings for 6 years, serving most recently as its President. Prior to joining Talegen, Mr. Tolman was with Fireman’sFireman's Fund Corporation for more than 15 years.


    Mr. Waters was elected Director, President and CEO of White Mountains Re on March 6, 2007. Mr. Waters was a director of White Mountains from 2003 to 2004 and was re-elected as a director in November 2005. From 1998 to 2007, Mr. Waters was the founder and Managing Member of Mulherrin Capital Advisors, LLC. Mr. Waters formerly served as Senior Vice President and Chief Financial Officer of White Mountains from 1993 to 1998, as Vice President and Controller from 1990 to 1993, as Vice President of Finance from 1987 to 1990 and as Assistant Vice President of Finance from 1985 to 1987.


    PART II

    Item 5.    Market for the Company’sCompany's Common Equity, Related Shareholder Matters and Issuer PurchasePurchases of Equity Securities

    As of February 28, 2007,2008, there were 368378 registered holders of White Mountains’Mountains' common shares, par value $1.00 per share.

    During 2006each of 2007 and 2005,2006, the Company declared and paid cash dividends on common shares of $8.00 and $8.00 per common share, respectively.share.

    Common shares are listed on the New York Stock Exchange (symbol WTM) and the Bermuda Stock Exchange (symbol WTM-BH). The quarterly range of the high and low sales price for common shares during 20062007 and 20052006 is presented below:

     

     

    2006

     

    2005

     

     

     

    High

     

    Low

     

    High

     

    Low

     

    Quarter ended:

     

     

     

     

     

     

     

     

     

    December 31

     

    $

    603.00

     

    $

    496.00

     

    $

    638.99

     

    $

    555.00

     

    September 30

     

    537.00

     

    447.00

     

    711.99

     

    583.60

     

    June30

     

    591.00

     

    465.01

     

    677.50

     

    564.50

     

    March 31

     

    594.50

     

    517.00

     

    695.00

     

    582.00

     

     
     2007
     2006
     
     High
     Low
     High
     Low
    Quarter ended:            
     December 31 $566.50 $492.00 $603.00 $496.00
     September 30  608.96  507.00  537.00  447.00
     June 30  611.02  548.76  591.00  465.01
     March 31  590.40  532.35  594.50  517.00

            

    No repurchasesOn October 26, 2007, White Mountains repurchased 282,341 of its common shares for $500 per share, or $141 million, in a transaction with an institutional investor. On November 26, 2007, White Mountains repurchased an additional 8,500 of its common shares for $500 per share, or $4 million. These transactions were madethe first repurchases under the previously announced share repurchase plan authorized by orWhite Mountains' Board of Directors on behalf ofNovember 17, 2006. There are 709,159 shares remaining for future share repurchases under the Company during the fourth quarter of 2006.plan.

    For information on securities authorized for issuance under the Company’sCompany's equity compensation plans, see “Item 12 - "Item 12—Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters.”Matters."

    The following graph shows the five-year cumulative total return for a shareholder who invested $100 in common shares (NYSE symbol “WTM”"WTM") as of January 1, 2002,2003, assuming re-investment of dividends. Cumulative returns for the five-year period ended December 31, 20062007 are also shown for the Standard & Poor’sPoor's 500 Stocks (Property & Casualty) Capitalization Weighted Index (“("S&P P&C”&C") and the Standard & Poor’sPoor's 500 Stocks Capitalization Weighted Index (“("S&P 500”500") for comparison.

    Five-Year Cumulative Total Return
    (value of $100 invested January 1, 2002)

    COMPARISON OF CUMULATIVE FIVE YEAR TOTAL RETURN

            


    Item 6.    Selected Financial Data

    Selected consolidated income statement data and ending balance sheet data for each of the five years ended December31, 2006,December 31, 2007, follows:

     

     

    Year Ended December 31,

     

    $ in millions, except share and per share amounts

     

    2006

     

    2005

     

    2004

     

    2003

     

    2002

     

    Income Statement Data:

     

     

     

     

     

     

     

     

     

     

     

    Revenues

     

    $

    4,794

     

    $

    4,632

     

    $

    4,555

     

    $

    3,794

     

    $

    4,208

     

    Expenses

     

    4,064

     

    4,327

     

    4,297

     

    3,420

     

    4,089

     

    Pre-tax earnings (loss)

     

    730

    (h)

    305

     

    258

     

    374

     

    119

     

    Income tax (provision) benefit

     

    (99

    )

    (37

    )

    (47

    )

    (127

    )

    (11

    )

    Minority interest

     

    (16

    )

    (12

    )

    (11

    )

    (2

    )

     

    Equity in earnings of unconsolidated affiliates

     

    37

     

    34

     

    38

     

    57

     

    14

     

    Accretion and dividends on preferred stock of subsidiaries

     

     

     

     

    (21

    )(b)

    (41

    )

    Net income from continuing operations

     

    652

     

    290

     

    238

     

    281

     

    81

     

    Cumulative effect of changes in accounting principles

     

     

     

     

     

    660

    (a)

    Extraordinary gains

     

    21

     

     

    181

    (c)

     

    7

     

    Net income

     

    $

    673

     

    $

    290

     

    $

    419

     

    $

    281

     

    $

    748

     

    Net income from continuing operations per share:

     

     

     

     

     

     

     

     

     

     

     

    Basic

     

    $

    62.51

     

    $

    26.96

     

    $

    24.05

     

    $

    26.48

     

    $

    7.47

     

    Diluted

     

    $

    62.32

     

    $

    26.56

     

    $

    22.67

     

    $

    23.63

     

    $

    6.80

     

     

     

     

     

     

     

     

     

     

     

     

     

    Balance Sheet Data:

     

     

     

     

     

     

     

     

     

     

     

    Total assets

     

    $

    19,444

     

    $

    19,418

     

    $

    19,015

     

    $

    15,882

     

    $

    17,267

     

    Short-term debt

     

     

     

     

     

    33

     

    Long-term debt

     

    1,107

     

    779

     

    783

     

    743

     

    760

     

    Convertible preference shares

     

     

     

     

     

    219

     

    Mandatorily redeemable preferred stock of subsidiaries

     

    262

     

    234

     

    212

     

    195

    (b)

    181

     

    Minority interest

     

    603

    (h)

    96

     

    59

     

    5

     

     

    Common shareholders’ equity

     

    4,455

     

    3,833

     

    3,884

     

    2,979

     

    2,408

     

    Book value per share (d)

     

    $

    408.62

     

    $

    347.00

     

    $

    349.60

     

    $

    293.15

     

    $

    254.52

     

    Fully converted tangible book value per share (e)

     

    $

    406.00

     

    $

    342.51

     

    $

    342.52

     

    $

    291.27

     

    $

    258.82

     

     

     

     

     

     

     

     

     

     

     

     

     

    Share Data:

     

     

     

     

     

     

     

     

     

     

     

    Cash dividends paid per common share

     

    $

    8.00

     

    $

    8.00

     

    $

    1.00

     

    $

    1.00

     

    $

    1.00

     

    Ending common shares (000’s) (f)

     

    10,783

     

    10,779

     

    10,773

     

    9,007

     

    8,351

     

    Ending equivalent common shares (000’s) (g)

     

    29

     

    34

     

    46

     

    1,775

     

    2,455

     

    Ending common and equivalent common shares (000’s)

     

    10,812

     

    10,813

     

    10,819

     

    10,782

     

    10,806

     

     
     Year Ended December 31,
     
    $ in millions, except share and per share amounts

     
     2007
     2006
     2005
     2004
     2003
     
    Income Statement Data:                
    Revenues $4,734 $4,794(g)$4,632 $4,555 $3,794 
    Expenses  4,052  4,064  4,327  4,297  3,420 
      
     
     
     
     
     
    Pre-tax earnings  682  730(g) 305  258  374 
     Income tax provision  (211) (99) (37) (47) (127)
     Minority interest  (93) (16) (12) (11) (2)
     Equity in earnings of unconsolidated affiliates  29  37  34  38  57 
     Accretion and dividends on preferred stock of subsidiaries          (21)(a)
      
     
     
     
     
     
    Net income before extraordinary items  407  652  290  238  281 
     Extraordinary gains    21(b)   181(b)  
      
     
     
     
     
     
    Net income $407 $673 $290 $419 $281 
      
     
     
     
     
     
    Net income before extraordinary items per share:                
     Basic $37.96 $60.52 $26.96 $24.05 $26.48 
     Diluted $37 89 $60.33 $26.56 $22.67 $23.63 
      
     
     
     
     
     
    Balance Sheet Data:                
    Total assets $19,106 $19,444 $19,418 $19,015 $15,882 
    Long-term debt  1,193(h) 1,107(h) 779  783  743 
    Mandatorily redeemable preferred stock of subsidiaries  278  262  234  212  195 
    Minority interest—OneBeacon Ltd  517  491(g)      
    Minority interest—WMRe Preference Shares  250(i)        
    Minority interest—consolidated limited partnerships  100  113  96  59  5 
    Common shareholders' equity  4,713  4,455  3,833  3,884  2,979 
    Book value per share(c) $446.83 $408.62 $347.00 $349.60 $293.15 
    Fully diluted tangible book value per share(d) $444.47 $406.00 $342.51 $342.52 $291.27 
      
     
     
     
     
     
    Share Data:                
    Cash dividends paid per common share $8.00 $8.00 $8.00 $1.00 $1.00 
    Ending common shares (000's)(e)  10,554  10,783  10,779  10,773  9,007 
    Ending equivalent common shares (000's)(f)  (37) 29  34  46  1,775 
      
     
     
     
     
     
    Ending common and equivalent common shares (000's)  10,517  10,812  10,813  10,819  10,782 
      
     
     
     
     
     

    (a)             In accordance with its adoption of Statement of Financial Accounting Standard (“SFAS”) No. 141, “Business Combinations”,the Company recognized all of its outstanding deferred credits on January 1,2002.

    (b)

    In accordance with its adoption of SFAS No. 150, “Accounting"Accounting for Certain Financial Instruments with Characteristics of both Liabilities and Equity” (“Equity" ("SFAS 150”150"), on July 1,2003,1, 2003, the Company reclassified its outstanding mandatorily redeemable preferred stock from mezzanine equity to liabilities on its balance sheet and, beginning in the third quarter of 2003, White Mountains began presenting all accretion and dividends on its mandatorily redeemable preferred stock as interest expense. See Note 1.

    (c)

    (b)
    The extraordinary gain in 2006 resulted from the excess of the fair value over the cost of net assets acquired in the Mutual Services acquisition. Extraordinary gains in 2004 resulted from the excess of the fair value over the cost of net assets acquired in the Sirius, Symetra, Tryg-Baltica and Sierra transactions.

    (d)

    (c)
    Includes the dilutive effects of outstanding incentive options to acquire common shares (“Options”("Options") and, for years prior to 2004, warrants to acquire common shares.

    (e)             Book value per share plus unamortized deferred credits less goodwill and the equity in net unrealized gains from Symetra’s fixed income portfolio per common and equivalent common share. The 2002 fully converted

    (d)
    Fully diluted tangible book value per share assumes outstandingis a non-GAAP measure which is derived by expanding the GAAP book value per share calculation to include the effects of assumed conversion of all in-the-money convertible preference sharessecurities and to be equivalent common shares.

    (f)exclude any unamortized goodwill and net unrealized gains from Symetra's fixed maturity portfolio. See the reconciliation of fully diluted tangible book value per share to book value per share on page 47.

    (e)
    During 2003, 677,9662007, the Company repurchased and retired 290,841 common shares were issued in satisfaction of Convertible Preference Shares.two transactions with institutional investors. During 2004, 1,724,200 common shares were issued in satisfaction of warrants exercised.

    (g)

    (f)
    Includes outstanding Convertible Preference Shares, Options and warrants to acquire common shares, when applicable.

    (h) In addition, for periods subsequent to December 31, 2006, the number of common shares outstanding used in the calculation of fully diluted tangible book value per share is adjusted to exclude unearned shares of restricted stock representative of the proportion of unamortized compensation cost at the date of the calculation to the value of the restricted stock on the date of issuance.

    (g)
    In connection with the OneBeacon Offering, White Mountains recognized a $171 million gain in other revenues and recorded a $491 million minority interest liability.

    43



    (h)
    At December 31, 2006, White Mountains had $320 million outstanding under its credit facility. During 2007, White Mountains Re issued the $400 million WMRe Senior Notes, a portion of the proceeds of which were used to repay the borrowings under White Mountains' credit facility.

    (i)
    In May 2007, WMRe Group, an intermediate holding company of White Mountains Re, issued $250 million non-cumulative perpetual preference shares.




    Item 7.                          Management’s    Management's Discussion and Analysis of Financial Condition and Results of Operations

    The following discussion contains “forward-looking statements”"forward-looking statements". White Mountains intends statements that are not historical in nature, which are hereby identified as forward-looking statements, to be covered by the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. White Mountains cannot promise that its expectations in such forward-looking statements will turn out to be correct. White Mountains’Mountains' actual results could be materially different from and worse than its expectations. See "FORWARD-LOOKING STATEMENTS” STATEMENTS" for specific important factors that could cause actual results to differ materially from those contained in forward-looking statements.

    The following discussion also includes threefive non-GAAP financial measures, adjusted comprehensive net income, (loss), fully converteddiluted tangible book value per common and equivalentshare, tangible capital, OneBeacon's adjusted book value per share and tangible capital,OneBeacon's specialty, commercial and personal lines' loss and LAE ratios and combined ratios prior to a reserve reallocation, that have been reconciled to their most comparable GAAP financial measures (see page 59)64). White Mountains believes these measures to be more relevant than comparable GAAP measures in evaluating White Mountains’Mountains' financial performance and condition.

    RESULTS OF OPERATIONS FOR THE YEARS ENDED DECEMBER 31, 2007, 2006 2005 and 20042005

    Overview

            White Mountains ended 2007 with a fully diluted tangible book value per common share of $444, which represented an increase of 11.4% (including dividends) over the fully diluted tangible book value per common share of $406 as of December 31, 2006. This increase reflects favorable weather conditions and strong investment results in 2007. Fully diluted tangible book value per share at December 31, 2007 was reduced by $2 from the impact of share repurchases during the fourth quarter of 2007.

    White Mountains ended 2006 with a fully converteddiluted tangible book value per common share of $406, which represented an increase of 21% (including dividends) over the fully converteddiluted tangible book value per common share of $343 as of December 31, 2005. This increase reflectsreflected favorable weather conditions and strong investment results when compared to 2005. Additionally, during the fourth quarter of 2006, White Mountains recognized an after-tax gain of $171 million, or $16 per common share, on the sale of 27.6% of its interest in OneBeacon through an initial public offering.

    White Mountains ended 2005 with a fully converted tangible book value per common share of $343, which represented an increase of 2% (including dividends) from $343 as of December 31, 2004. During 2005, White Mountains experienced significant losses from hurricanes Katrina, Rita and Wilma, and from the Company’s investment in Montpelier Re that adversely impacted fully converted tangible book value per common share.OneBeacon Offering.

    Fully ConvertedDiluted Tangible Book Value Per Share

    The following table presents the Company’sCompany's tangible book value per share for the years ended December 31, 2007, 2006, 2005, and 20042005 and reconciles this non-GAAP measure to the most comparable GAAP measure:

     

     

    December 31,

     

     

     

     

    2006

     

    2005

     

    2004

     

     

    Book value per share numerators (in millions):

     

     

     

    ��

     

     

     

     

    Common shareholders equity

     

    $

    4,455.3

     

    $

    3,833.2

     

    $

    3,883.9

     

     

    Benefits to be received from share obligations under employee benefit plans

     

    4.7

     

    5.1

     

    6.7

     

     

    Remaining accretion of subsidiary preferred stock to face value

     

    (41.8

    )(1)

    (86.0

    )

    (108.1

    )

     

    Book value per share numerator

     

    4,418.2

     

    3,752.3

     

    3,782.5

     

     

    Equity in net unrealized (gains) losses from Symetras fixed maturity portfolio

     

    4.1

     

    (24.2

    )

    (56.6

    )

     

    Goodwill

     

    (32.5

    )

    (24.4

    )

    (20.0

    )

     

    Fully converted tangible book value per common and equivalent share numerator

     

    $

    4,389.8

     

    $

    3,703.7

     

    $

    3,705.9

     

     

    Book value per share denominators (in thousands of shares):

     

     

     

     

     

     

     

     

    Common shares outstanding

     

    10,782.8

     

    10,779.2

     

    10,772.8

     

     

    Share obligations under employee benefit plans

     

    29.5

     

    34.3

     

    46.5

     

     

    Fully converted tangible book value per common and equivalent share

     

    10,812.3

     

    10,813.5

     

    10,819.3

     

     

    Book value per share

     

    $

    408.62

     

    $

    347.00

     

    $

    349.60

     

     

    Fully converted tangible book value per common and equivalent share

     

    406.00

     

    342.51

     

    342.52

     

     

     
     December 31,
     
     
     2007
     2006
     2005
     
    Book value per share numerators (in millions):          
    Common shareholders' equity $4,713.4 $4,455.3 $3,833.2 
     Benefits to be received from share obligations under employee benefit plans  1.7  4.7  5.1 
     Remaining accretion of subsidiary preferred stock to face value(1)  (15.8) (41.8) (86.0)
      
     
     
     
    Book value per share numerator  4,699.3  4,418.2  3,752.3 
     Equity in net unrealized (gains) losses from Symetra's fixed maturity portfolio  5.6  4.1  (24.2)
     Goodwill  (30.4) (32.5) (24.4)
      
     
     
     
    Fully diluted tangible book value per share numerator $4,674.5 $4,389.8 $3,703.7 
      
     
     
     
    Book value per share denominators (in thousands of shares):          
    Common shares outstanding  10,553.6  10,782.8  10,779.2 
     Unearned restricted shares  (46.5)    
     Share obligations under employee benefit plans  9.9  29.5  34.3 
      
     
     
     
    Fully diluted tangible book value per share denominator  10,517.0  10,812.3  10,813.5 
      
     
     
     
    Book value per share $446.83 $408.62 $347.00 
    Fully diluted tangible book value per share  444.47  406.00  342.51 
      
     
     
     

    (1)             72.4% of remaining
    Remaining adjustment of subsidiary preferred stock to face value, which is representative ofbased on White Mountains’Mountains' ownership interest in OneBeacon.

    OneBeacon Ltd. of 72.9%, 72.4% and 100% as of December 31, 2007, 2006 and 2005.

    Review of Consolidated Results

    A summary of White Mountains’Mountains' consolidated financial results for the years ended December 31, 2007, 2006 and 2005 follows:

     
     Year Ended December 31,
     
    Millions

     
     2007
     2006
     2005
     
     Gross written premiums $4,189.9 $4,312.4 $4,601.6 
      
     
     
     
     Net written premiums $3,758.6 $3,843.5 $3,776.1 
      
     
     
     
    Revenues          
     Earned insurance and reinsurance premiums $3,783.7 $3,712.7 $3,798.6 
     Net investment income  533.0  435.5  491.5 
     Net realized investment gains  263.2  272.7  112.6 
     Gain on sale of shares through the OneBeacon Offering    171.3   
     Other revenue  153.9  202.0  229.2 
      
     
     
     
      Total revenues  4,733.8  4,794.2  4,631.9 
      
     
     
     
    Expenses          
     Losses and LAE  2,406.4  2,452.7  2,858.2 
     Insurance and reinsurance acquisition expenses  776.6  754.8  761.2 
     Other underwriting expenses  509.0  505.4  424.7 
     General and administrative expenses  200.5  218.3  148.8 
     Accretion of fair value adjustment to loss and LAE reserves  21.4  24.5  36.9 
     Interest expense—debt  73.0  50.1  44.5 
     Interest expense—dividends and accretion on preferred stock  65.4  58.6  52.4 
      
     
     
     
      Total expenses  4,052.3  4,064.4  4,326.7 
      
     
     
     
    Pre-tax income $681.5 $729.8 $305.2 
     Income tax provision  (210.5) (98.9) (36.5)
     Equity in earnings of unconsolidated affiliates  29.4  36.9  33.6 
     Minority interest  (93.0) (16.0) (12.2)
      
     
     
     
    Net income before extraordinary items $407.4 $651.8 $290.1 
     Excess of fair value of acquired net assets over cost    21.4   
      
     
     
     
    Net income $407.4 $673.2 $290.1 
     Other comprehensive income (loss)  71.9  32.9  (254.1)
      
     
     
     
    Comprehensive net income $479.3 $706.1 $36.0 
    Change in net unrealized (gains) losses from Symetra's fixed maturity portfolio  1.5  28.3  32.4 
      
     
     
     
    Adjusted comprehensive net income $480.8 $734.4 $68.4 
      
     
     
     

    Consolidated Results—Year Ended December 31, 2007 versus Year Ended December 31, 2006

            White Mountains reported adjusted comprehensive net income of $481 million for 2007, compared to $734 million in 2006. Net income was $407 million in 2007, compared to $673 million in 2006. These results reflect favorable weather conditions and 2004 follows:strong investment results in both years. During 2006, White Mountains benefited from an after-tax gain of $171 million from the OneBeacon Offering, an after-tax gain of $21 million on the purchase of Mutual Service, $29 million in after-tax transaction gains from the sales of Sirius America and OneBeacon's Agri business and $33 million in gains from the settlements of United States Federal and state income tax audits.

     

     

    Year Ended December 31,

     

    Millions

     

    2006

     

    2005

     

    2004

     

    Gross written premiums

     

    $

    4,312.4

     

    $

    4,601.6

     

    $

    4,792.1

     

    Net written premiums

     

    $

    3,843.5

     

    $

    3,776.1

     

    $

    3,904.8

     

    Revenues

     

     

     

     

     

     

     

    Earned insurance and reinsurance premiums

     

    $

    3,712.7

     

    $

    3,798.6

     

    $

    3,820.5

     

    Net investment income

     

    435.5

     

    491.5

     

    360.9

     

    Net realized investment gains

     

    272.7

     

    112.6

     

    181.1

     

    Gain on sale of OneBeacon shares

     

    171.3

     

     

     

    Other revenue

     

    202.0

     

    229.2

     

    192.8

     

    Total revenues

     

    4,794.2

     

    4,631.9

     

    4,555.3

     

    Expenses

     

     

     

     

     

     

     

    Losses and LAE

     

    2,452.7

     

    2,858.2

     

    2,591.1

     

    Insurance and reinsurance acquisition expenses

     

    754.8

     

    761.2

     

    744.4

     

    Other underwriting expenses

     

    505.4

     

    424.7

     

    520.4

     

    General and administrative expenses

     

    218.3

     

    148.8

     

    301.0

     

    Accretion of fair value adjustment to loss and LAE reserves

     

    24.5

     

    36.9

     

    43.3

     

    Interest expense - debt

     

    50.1

     

    44.5

     

    49.1

     

    Interest expense - dividends and accretion on preferred stock

     

    58.6

     

    52.4

     

    47.6

     

    Total expenses

     

    4,064.4

     

    4,326.7

     

    4,296.9

     

    Pre-tax income

     

    $

    729.8

     

    $

    305.2

     

    $

    258.4

     

    Income tax provision

     

    (98.9

    )

    (36.5

    )

    (47.0

    )

    Equity in earnings of unconsolidated affiliates

     

    36.9

     

    33.6

     

    37.4

     

    Minority interest

     

    (16.0

    )

    (12.2

    )

    (10.6

    )

    Net income before extraordinary items

     

    $

    651.8

     

    $

    290.1

     

    $

    238.2

     

    Excess of fair value of acquired net assets over cost

     

    21.4

     

     

    180.5

     

    Net income

     

    $

    673.2

     

    $

    290.1

     

    $

    418.7

     

    Other comprehensive income (loss)

     

    32.9

     

    (254.1

    )

    176.5

     

    Comprehensive net income

     

    $

    706.1

     

    $

    36.0

     

    $

    595.2

     

    Change in net unrealized (gains) losses from Symetras fixed maturity portfolio

     

    28.3

     

    32.4

     

    (56.6

    )

    Adjusted comprehensive net income

     

    $

    734.4

     

    $

    68.4

     

    $

    538.6

     

            White Mountains' total revenues decreased by 1% to $4,734 million in 2007 compared to $4,794 million in 2006, mainly due to the $171 million gain from the OneBeacon Offering in 2006 and a $48 million decrease in other revenues, mainly at White Mountains Re. These revenue decreases were partially offset by a $98 million increase in net investment income, due mainly to a higher invested asset base in 2007, and a 2% increase in earned premiums. The increase in earned premiums was primarily due to an increase at Esurance, partially offset by decreases at OneBeacon and White Mountains Re.


            White Mountains' total expenses were relatively flat at $4,052 million for 2007 when compared to 2006. Interest expense on debt increased 46% in 2007, primarily due to interest on the WMRe Senior Notes that were issued in March of 2007. This was partially offset by an 8% decrease in general and administrative expenses, due primarily to lower incentive compensation expense in 2007.

    Consolidated Results - Results—Year Ended December 31, 2006 versus Year Ended December 31, 2005

    White Mountains reported adjusted comprehensive net income of $734 million for 2006, compared to $68 million in 2005. Net income was $673 million in 2006, compared to $290 million in 2005. The increase in 2006 adjusted comprehensive net income resulted primarily from the $171 million gain onfrom the sale of OneBeacon shares,Offering, favorable weather conditions, strong investment returns and a $21 million after-tax gain on the purchase of Mutual Service. In addition, the 2005 results included $288 million in after-tax losses from hurricanes Katrina, Rita and Wilma, while 2006 included $70 million in after-tax losses from adverse development on those storms and a $95 million after-tax loss from the Olympus reimbursement (see description on page 52)58). 2005 also included $104 million of after-tax comprehensive net loss from the Montpelier Re investment, compared to $10 million in after-tax comprehensive net income in 2006. Adjusted comprehensive net income for 2006 also benefitted from $59 million of after-tax unrealized foreign currency gains, compared to $70 million of after-tax unrealized foreign currency losses in 2005, primarily from currency fluctuations of the U.S. dollar against the Swedish Krona and the Euro.

    White Mountains’Mountains' total revenues increased by 4% to $4,794 million in 2006 compared to $4,632 million in 2005, mainly due to the $171 million gain on the sale of OneBeacon shares and a $160 million increase in net realized investment gains, primarily due to $165 million of pre-tax losses in the value of the Company’sCompany's investment in Montpelier Re realized during 2005, compared to a $5 million pre-tax gain realized in 2006. These increases were


    partially offset by a $56 million decrease in net investment income, primarily due to the receipt in 2005 of a $74 million special dividend from Montpelier Re, and a 2% decrease in earned premiums, primarily due to a decreases at OneBeacon and White Mountains Re, which were partially offset by an increase at Esurance.

    White Mountains’Mountains' total expenses decreased by 6% to $4,604$4,064 million for 2006, primarily due to a $406 million decrease in losses and LAE, partially offset by a $70 million increase in general and administrative expenses. The decrease in losses and LAE was due mainly to lower catastrophe losses in 2006 compared to 2005. In 2005, White Mountains reported $422 million in pre-tax loss and LAE on hurricanes Katrina, Rita and Wilma, compared to $106 million in loss and LAE from adverse development on those storms, as well as a $137 million loss and $9 million in forgone override commissions from the Olympus reimbursement in 2006. The increase in general and administrative expenses in 2006 when compared to 2005 was primarily due to increased incentive compensation expenses.

    Consolidated Results - Year Ended December 31, 2005 versus Year Ended December 31, 2004Income Taxes

    White Mountains reported adjusted comprehensive net income of $68 million for 2005, compared to $539 million in 2004. Net income was $290 million in 2005, compared to $419 million in 2004. The reduction in 2005 adjusted comprehensive net income resulted primarily from the aforementioned hurricane losses and Montpelier Re investment decline, as well as the impact of $181 million in transaction gains reported in 2004, primarily from the Sirius Acquisition.

    White Mountains’ total revenues increased by 2% in 2005 compared to 2004, mainly from a $131 million increase in net investment income, primarily due to a $74 million special dividend from Montpelier Re in 2005. Earned premiums decreased by 1% in 2005, primarily due to a decrease at OneBeacon, which was partially offset by increases at White Mountains Re and Esurance. Net realized investment gains decreased by $69 million in 2005, primarily due to losses in the value of the Company’s investment in Montpelier Re during 2005.

    White Mountains’ total expenses also increased by 1% for 2005 as a $267 million increase in loss and LAE, primarily due to hurricanes Katrina, Rita and Wilma, was partially offset by a $152 million decrease in general and administrative expenses, primarily due to decreased incentive compensation expense resulting from a 14% decline in White Mountains’ share price during the year.

    Income Taxes

    The Company is domiciled in Bermuda and has subsidiaries domiciled in several countries. The majority of the Company’sCompany's worldwide operations are taxed in the United States. Income earned or losses incurred by non-U.S. companies will generally be subject to an overall effective tax rate lower than that imposed by the United States.

    The income tax provision related to pretax earnings for 2007, 2006 2005 and 20042005 represents an effective tax rate of 13.6%30.9%, 12.0%13.6% and 18.2%12.0%, respectively. White Mountains’Mountains' effective tax rates for 2007, 2006 2005 and 20042005 were lower than the U.S. statutory rate of 35% due primarily to income generated in jurisdictions other than the United States. In addition, White Mountains’Mountains' effective tax rate for 2006 benefitted fromreflected tax benefits recognized in the second quarter of 2006 related to settlements of U.S. Federal income tax audits for years 2001 and 2002 of Fund American Financial Services, Inc. and White Mountains’ effective tax rate for 2004 benefitted from the recognition of foreign tax credits, partially offset by taxes incurred from an internal reorganization of the company.2002.


    During 2005, White Mountains was advised that the Joint Committee on Taxation approved the United States Internal Revenue Service audit of White Mountains’ 1997-2000 tax years, which contained no significant adjustments to the tax returns filed by White Mountains. This audit included the redomestication of White Mountains to Bermuda in 1999.

    I. Summary of Operations By Segment

    White Mountains conducts its operations through four segments: (1) OneBeacon, (2) White Mountains Re, (3) Esurance and (4) Other Operations. White Mountains manages allthe majority of its investments through its wholly-owned subsidiary, WM Advisors, therefore, a discussion of White Mountains’Mountains' consolidated investment operations is included after the discussion of operations by segment. White Mountains’Mountains' segment information is presented inNote 13 - “Segment Information” 16—"Segment Information"to the Consolidated Financial Statements.


    OneBeacon

    Financial results for OneBeacon for the years ended December 31, 2007, 2006 and 2005 follow:

     
     Year Ended December 31,
    ($ in millions)

     2007
     2006
     2005
     Gross written premiums $2,092.1 $2,088.4 $2,266.5
      
     
     
     Net written premiums $1,864.4 $1,957.6 $2,121.1
      
     
     
     Earned insurance and reinsurance premiums $1,873.6 $1,944.0 $2,118.4
     Net investment income  208.5  187.6  242.4
     Net realized investment gains  173.7  156.4  122.8
     Other revenue  17.2  38.8  50.3
      
     
     
      Total revenues  2,273.0  2,326.8  2,533.9
      
     
     
     Losses and LAE  1,089.8  1,180.3  1,401.5
     Insurance and reinsurance acquisition expenses  318.9  332.3  390.7
     Other underwriting expenses  329.4  360.1  278.9
     General and administrative expenses  9.8  15.3  8.4
     Accretion of fair value adjustment to loss and LAE reserves  16.0  23.0  26.0
     Interest expense on debt  45.2  45.6  44.1
     Interest expense—dividends and accretion on preferred stock  65.4  58.6  52.4
      
     
     
      Total expenses  1,874.5  2,015.2  2,202.0
      
     
     
    Pre-tax earnings $398.5 $311.6 $331.9
      
     
     

            The following table presents OneBeacon's adjusted book value per common share and 2004 follow:reconciles this non-GAAP measure to book value per common share, the most comparable GAAP measure.

     

     

    Year Ended December 31,

     

    ($ in millions)

     

    2006

     

    2005

     

    2004

     

    Gross written premiums

     

    $

    2,088.4

     

    $

    2,266.5

     

    $

    2,657.5

     

    Net written premiums

     

    $

    1,957.6

     

    $

    2,121.1

     

    $

    2,459.1

     

    Earned insurance and reinsurance premiums

     

    $

    1,944.0

     

    $

    2,118.4

     

    $

    2,378.5

     

    Net investment income

     

    187.6

     

    242.4

     

    219.9

     

    Net realized investment gains

     

    156.4

     

    122.8

     

    129.4

     

    Other revenue

     

    38.8

     

    50.3

     

    59.5

     

    Total revenues

     

    2,326.8

     

    2,533.9

     

    2,787.3

     

    Losses and LAE

     

    1,180.3

     

    1,401.5

     

    1,545.2

     

    Insurance and reinsurance acquisition expenses

     

    332.3

     

    390.7

     

    442.3

     

    Other underwriting expenses

     

    360.1

     

    278.9

     

    369.2

     

    General and administrative expenses

     

    15.3

     

    8.4

     

    81.9

     

    Accretion of fair value adjustment to loss and LAE reserves

     

    23.0

     

    26.0

     

    33.2

     

    Interest expense on debt

     

    45.6

     

    44.1

     

    45.0

     

    Interest expense - dividends and accretion on preferred stock

     

    58.6

     

    52.4

     

    47.6

     

    Total expenses

     

    2,015.2

     

    2,202.0

     

    2,564.4

     

    Pre-tax earnings

     

    $

    311.6

     

    $

    331.9

     

    $

    222.9

     

     
     December 31,
     
    (Millions, except per share amounts)

     
     2007
     2006
     
    OneBeacon book value per share numerators:       
    OneBeacon common shareholders' equity $1,906.5 $1,777.2 
     Remaining accretion of subsidiary preferred stock to face value  (21.6) (57.7)
      
     
     
    Adjusted OneBeacon common shareholders' equity  1,884.9  1,719.5 
      
     
     
    OneBeacon Ltd. common shares outstanding  98.5  100.0 
      
     
     
    OneBeacon book value per common share $19.36 $17.77 
    OneBeacon adjusted book value per common share $19.14 $17.20 
      
     
     
    Growth in adjusted book value per common share, including dividends, for the year(1)  16.2%   
      
     
     

        (1)
        OneBeacon Ltd. has paid quarterly dividends of $.21 per common share beginning in March 2007.

      The following tables provide GAAP ratios, net written premiums and earned insurance premiums for OneBeacon’sOneBeacon's ongoing businesses and in total for the years ended December 31, 2007, 2006, 2005, and 2004:2005:

      ($ in millions)

       

      Year Ended December 31, 2006

       

      GAAP Ratios:

       

      Specialty

       

      Personal

       

      Commercial

       

      Total(1)

       

      Loss and LAE

       

      55

      %

      64

      %

      56

      %

      61

      %

      Expense

       

      34

      %

      32

      %

      39

      %

      35

      %

      Total Combined

       

      89

      %

      96

      %

      95

      %

      96

      %

      Net written premiums

       

      $

      437.6

       

      $

      800.6

       

      $

      718.3

       

      $

      1,957.6

       

      Earned insurance premiums

       

      $

      432.3

       

      $

      822.3

       

      $

      689.3

       

      $

      1,944.0

       

      ($ in millions)

       

      Year Ended December 31, 2005

       

      GAAP Ratios:

       

      Specialty

       

      Personal

       

      Commercial

       

      Total (1)

       

      Loss and LAE

       

      54

      %

      62

      %

      59

      %

      66

      %

      Expense

       

      31

      %

      29

      %

      38

      %

      32

      %

      Total Combined

       

      85

      %

      91

      %

      97

      %

      98

      %

      Net written premiums

       

      $

      548.8

       

      $

      910.2

       

      $

      654.4

       

      $

      2,121.1

       

      Earned insurance premiums

       

      $

      521.9

       

      $

      933.7

       

      $

      654.7

       

      $

      2,118.4

       



       Year Ended December 31, 2007
       
      ($ in millions)

      ($ in millions)

       

       

      Year Ended December 31, 2004

       

      Specialty
       Commercial
       Personal
       Total(1)
       

      GAAP Ratios:

       

      Specialty

       

      Personal

       

      Commercial

       

      Total (1)

       

      GAAP Ratios:         
      Loss and LAE prior to reserve reallocationLoss and LAE prior to reserve reallocation 58% 51% 60% 58%
      Effect of reserve reallocation(2) (20)% 0% (3)% n/a 
       
       
       
       
       

      Loss and LAE

       

      57

      %

      63

      %

      56

      %

      65

      %

      Loss and LAE 38% 51% 57% 58%

      Expense

       

      33

      %

      28

      %

      42

      %

      34

      %

      Expense 31% 37% 34% 35%

      Total Combined

       

      90

      %

      91

      %

      98

      %

      99

      %

       
       
       
       
       
      Total GAAP combined 69% 88% 91% 93%
       
       
       
       
       
      Total combined prior to reserve reallocation 89% 88% 94% 93%
       
       
       
       
       

      Net written premiums

       

      $

      565.7

       

      $

      1,063.3

       

      $

      826.8

       

      $

      2,459.1

       

      Net written premiums $446.2 $727.7 $690.4 $1,864.4 

      Earned insurance premiums

       

      $

      539.0

       

      $

      1,070.9

       

      $

      710.3

       

      $

      2,378.5

       

      Earned insurance premiums $436.4 $712.0 $725.0 $1,873.6 
       
       Year Ended December 31, 2006
       
      ($ in millions)

       
       Specialty
       Commercial
       Personal
       Total(1)
       
      GAAP Ratios:             
      Loss and LAE  55% 56% 64% 61%
      Expense  34% 39% 32% 35%
        
       
       
       
       
       Total combined  89% 95% 96% 96%
        
       
       
       
       
      Net written premiums $437.6 $718.3 $800.6 $1,957.6 
      Earned insurance premiums $432.3 $689.3 $822.3 $1,944.0 
       
       Year Ended December 31, 2005
       
      ($ in millions)

       
       Specialty
       Commercial
       Personal
       Total(1)
       
      GAAP Ratios:             
      Loss and LAE prior to reserve reallocation  56% 61% 63% 66%
       Effect of reserve reallocation(2)  (2)% (2)% (1)% n/a 
        
       
       
       
       
      Loss and LAE  54% 59% 62% 66%
      Expense  31% 38% 29% 32%
        
       
       
       
       
       Total GAAP combined  85% 97% 91% 98%
        
       
       
       
       
       Total combined prior to reserve reallocation  87% 99% 92% 98%
        
       
       
       
       
      Net written premiums $548.8 $654.4 $910.2 $2,121.1 
      Earned insurance premiums $521.9 $654.7 $933.7 $2,118.4 

      (1)
      Includes results from run-off operations.


      Beginning in the fourth quarter of 2006, OneBeacon includes OBSP within commercial lines

      (2)
      During 2007 and AutoOne within personal lines. Both OBSP and AutoOne were formerly reported in specialty lines. The reporting change was undertaken to better align the reported results of OneBeacon’s underwriting units with their product and management structure. Prior periods have been reclassified to conform to the current presentation. Additionally, during 2005, OneBeacon reallocated $34loss and LAE reserves between its ongoing and run-off operations, which had the effect of lowering the combined ratios for the ongoing businesses. The reserve reallocation had no impact on OneBeacon's total combined ratio.

      OneBeacon Results—Year Ended December 31, 2007 versus Year Ended December 31, 2006

      Overview

              OneBeacon grew its adjusted book value per share by 16.2% during 2007, including dividends. Pre-tax income for 2007 was $399 million compared to $312 million for 2006, and its GAAP combined ratio was 93% for 2007 compared to 96% for 2006. The improved underwriting results in 2007 reflected lower catastrophe losses and favorable development on prior accident year losses. The 2007 results also benefited from a $26 million gain from OneBeacon's partial pension settlement (SeeNote 11—Retirement and Postretirement Plans).

              The decrease in OneBeacon's 2007 GAAP combined ratio was primarily due to a 3 point decrease in its loss and LAE ratio. The 2007 results included 3 points of favorable development on prior accident year losses due to lower than expected frequency for professional liability in specialty lines and lower than expected severity for automobile liability in personal lines, partially offset by unfavorable development for multiple peril and workers compensation, primarily for accident years 2001 and prior. The 2006 results included 1 point of adverse development on prior


      accident year losses, mainly due to adverse development on catastrophe losses, primarily related to hurricanes Katrina and Wilma and two 2004 catastrophes, partially offset by favorable development on prior accident year non-catastrophe losses in specialty lines and commercial lines.

              OneBeacon's total revenues decreased by 2% in 2007 to $2,273 million, compared to $2,327 million in 2006, due principally to a 4% decrease in earned premiums in 2007. 2006 included $65 million of IBNRpremium from OneBeacon's Agri division, the renewal rights to which were sold on September 30, 2006. Net other revenues decreased 56% in 2007 to $17 million, compared to $39 million in 2006. The 2006 period included a $30 million gain on the sale of renewal rights of Agri to QBE. Partially offsetting the Agri gain was a $13 million pre-tax loss on the sale of OneBeacon's investment in MSA (after tax, the MSA exchange resulted in an $8 million net realized gain). OneBeacon's 2007 net other revenues included an $11 million gain from the sale of one of its inactive licensed insurance subsidiaries.

              During 2007, OneBeacon reallocated reserves from ongoing lines of business to run-off.run-off reserves, particularly on run-off reserves for construction defect and workers compensation related to accident years 2001 and prior. The reallocation shifted $117 million of reserves from specialty lines ($88 million), commercial lines ($6 million) and personal lines ($23 million) to run-off claims. This reallocation had the effect of lowering the combined ratios for specialty, commercial and personal lines, but had no net impact on OneBeacon’sOneBeacon's overall results. The ratio discussions by line of business that follow are based on the ratios as computed prior to the reallocation of reserves to run-off claims. OneBeacon believes that a presentation excluding the effect of the reserve reallocation on specialty, commercial and personal lines' loss and LAE ratios and GAAP combined ratios is meaningful for investors to understand the performance of its underwriting units during 2007.

              Specialty lines.    Net written premiums for specialty lines increased by 2% to $446 million in 2007 from $438 million in 2006. Excluding the business transferred in the Agri Sale, net written premiums increased by 20% in 2007 due to a $35 million increase in net written premiums in specialty liability products at OBPP, a $19 million increase in net written premiums at IMU and $15 million in net written premiums in the Accident & Health business, which commenced operations in 2007.

              The specialty lines combined ratio for 2007 was 89%, consistent with the 2006 combined ratio. The loss and LAE ratio increased 3 points to 58%, primarily due to unfavorable large non-catastrophe current accident year losses in the Agri run-off business, while the expense ratio for 2007 decreased 3 points to 31%, primarily due to a 3 point reduction of commission expense from fees received in 2007 from QBE for fronting services performed on renewals of Agri business.

              Commercial lines.    Net written premiums for commercial lines increased by 1% to $728 million in 2007 from $718 million in 2006. The increase was mostly due to a $36 million increase in net written premiums in the small business division, principally driven by small business package products. Partially offsetting this increase was a $26 million decrease in the middle market division, due primarily to lower premiums at OBSP as a result of OneBeacon's strategy to manage its exposure to potential catastrophe losses.

              The commercial lines combined ratio for 2007 decreased to 88% from 95% for 2006. The loss and LAE ratio decreased 5 points to 51%, primarily due to 3 points of favorable development on prior accident year losses in 2007, mostly from property and general liability claims, compared to 2 points of adverse development on prior accident years in 2006, which were primarily at OBSP related to hurricanes Katrina and Wilma and two 2004 catastrophes. This decrease was partially offset by a 1 point increase in the current accident year loss ratio in 2007, partly driven by the pricing environment and partly driven by unusually low large losses in 2006. The expense ratio decreased by 2 points to 37% in 2007, primarily due to lower policy acquisition expenses as a result of an increased deferral rate of commercial lines policy acquisition costs from the expansion into new states, as well as a 1 point favorable impact from the partial pension settlement. Both periods included 1 point of office consolidation costs.

              Personal lines.    Net written premiums for personal lines decreased by 14% to $690 million in 2007 from $801 million in 2006. The decrease was primarily attributable to reduced writings at AutoOne due to significant declines in New York's assigned risk pool. Market trends indicate that New York's assigned risk volumes are expected to decline to approximately $137 million in 2008, down from $170 million in 2007, $253 million in 2006, and $383 million in 2005. Market trends indicate that the assigned risk pool in New Jersey is also expected to decline to approximately $61 million in 2008, down from $77 million in 2007, $141 million in 2006, and $247 million in 2005. The Company expects a reduction in AutoOne's premium volume reflective of these trends. In traditional personal lines, net written premium decreased in 2007 due to an increasingly competitive automobile market and Massachusetts state-mandated rate decreases. In September 2007, OneBeacon Results - notified agents that it plans to seek regulatory approval of a withdrawal


      plan to cease writing business in Houston General Insurance Exchange and also took actions to better align personal lines staffing with business needs. Net written premiums for Houston General Insurance Exchange were $15 million in 2007, compared to $4 million in 2006.

              The personal lines combined ratio for 2007 decreased to 94% from 96% for 2006. The loss and LAE ratio decreased 4 points to 60%, primarily due to 3 points of favorable development on prior accident years in automobile liability in traditional personal lines and at AutoOne, compared to 1 point of adverse development on prior accident years in 2006. Partially offsetting this decrease was higher large loss activity experienced in the first half of 2007. The expense ratio increased by 2 points to 34% from 32% in 2006. The increase was primarily due to the adverse effect of a lower earned premium base compared to 2006. The expense ratio in 2007 included the impact of non-recurring favorable items in 2007, including 1 point from a state premium tax refund and 1 point from the partial pension settlement. The 2006 expense ratio also included the benefit of non-recurring favorable items, including 1 point from a reduction of contingent commission accruals and 1 point related to the favorable settlement of a state franchise tax audit. Both periods included 1 point of office consolidation costs. In addition, the expense ratio for 2007 included 1 point of expense incurred in connection with the decision to cease writing business in Houston General Insurance Exchange and actions taken to reduce the personal lines workforce.

              Run-off.    For 2007, run-off business generated an underwriting loss of $39 million (excluding $117 million from the reserve reallocation), compared to an underwriting loss of $44 million in 2006. The results for both 2007 (excluding the reserve reallocation) and 2006 included $9 million in adverse development.

      OneBeacon Results—Year Ended December 31, 2006 versus Year Ended December 31, 2005

      Overview

      OneBeacon’s        OneBeacon's pre-tax income for 2006 was $312 million compared to $332 million for 2005, and its GAAP combined ratio was 96% for 2006 compared to 98% for 2005. OneBeacon’sOneBeacon's 2005 results included the results of NFU prior to its sale on September 30, 2005. The inclusion of NFU in the results for the first nine months of 2005 reduced the 2005 combined ratio by one point. During 2005, OneBeacon reallocated $34 million of IBNR reserves from ongoing lines of business to run-off. This reallocation had the effect of lowering the combined ratios for specialty, commercial and personal lines, but had no impact on OneBeacon's overall results.

      Lower adverse development on prior accident year losses caused OneBeacon’sOneBeacon's 2006 combined ratio to decrease four points from 2005. OneBeacon’sOneBeacon's 2006 results included $23 million of adverse development on prior accident years compared to $95 million in 2005, which primarily related to 2002 and prior accident years. Lower current accident year catastrophe losses also caused OneBeacon’sOneBeacon's 2006 combined ratio to decrease two points from 2005. OneBeacon’sOneBeacon's 2006 results included $29 million in current accident year catastrophe losses compared to $81 million in 2005, which included $69 million in from hurricanes Katrina, Rita and Wilma. Offsetting these decreases was a one point increase from higher incentive compensation expenses in 2006 and a one point increase from $20 million of expenses associated with actions taken to reduce long-term occupancy costs, including OneBeacon’sOneBeacon's move to its new U.S. headquarters in Canton, Massachusetts. In addition, OneBeacon’sOneBeacon's 2005 results included a $54 million gain from the settlement of its retiree medical plan, which reduced the 2005 combined ratio by three points. The retiree medical plan, which had been frozen in 2002, was terminated and an independent trust was established and funded to provide benefits to covered participants. These actions relieved OneBeacon of its future retiree medical obligations and triggered recognition of the gain. The majority of the gain was recorded as a reduction of other underwriting expenses with a portion of the gain reflected as a reduction in loss and LAE because a portion of the expense of the retiree medical program was allocated to the claims department.

      OneBeacon’s        OneBeacon's total revenues decreased 8% in 2006 to $2,327 million compared tofrom $2,534 million in 2005. The decrease was due principally to a 6% decrease in earned premiums in 2006, primarily due to the aforementioned sale of NFU, which had $130 million of earned premium in 2005. Net investment income decreased to $188 million in 2006 compared to $242 million in 2005, primarily due to the receipt of a $35 million special dividend on Montpelier Re common shares in the first quarter of 2005. Net realized investment gains increased to $156 million in 2006 compared to $123 million in 2005. The 2005 period included a realized loss of $55 million due to an other-than-temporary impairment on OneBeacon’sOneBeacon's investment in Montpelier Re common shares. Other revenues in 2006 included a pre-tax


      gain of $30 million from OneBeacon’sOneBeacon's sale of the renewal rights to its Agri business and a pre-tax loss on the exchange of its investment in MSA of $13 million (after tax, the MSA exchange resulted in an $8 million net realized gain). Other revenues in 2005 included $34 million in gains recorded from the sales of two subsidiaries, NFU and Traders and Pacific Insurance Company.

      Specialty Lines.    Net written premiums for specialty lines decreased by 20% to $438 million in 2006 from $549 million in 2005, mainly due to the aforementioned sales of NFU and Agri. Excluding NFU and Agri, specialty lines net written premiums increased $41 million, or 12%, from 2005. The increase was mainly due to a $30 million increase in net written premiums at OBPP to $179 million in 2006 from $149 million in 2005, principally driven by long-term care and lawyers professional liability products. Net written premiums for all other specialty lines businesses increased modestly or were essentially flat when compared with the prior year.

      The specialty lines combined ratio for 2006 wasincreased to 89% compared to 85%from 87% for 2005. The increase was primarily due a higher expense ratio, which rose to 34% in 2006 from 31% in 2005. The increased expense ratio was primarily due to a one point increase in incentive compensation expense in 2006 and the favorable impact in 2005 of the settlement of the retiree medical plan, which lowered that year’syear's expense ratio by two points. The loss and LAE ratio for 2006 was essentially flat when compared to 2005. Excluding the impact of the aforementioned reallocation of reserves to run-off, which reduced the 2005 loss ratio by three points, the loss and LAE ratio improved in 2006.

              Commercial Lines.Net written premiums for specialtycommercial lines decreasedincreased by 20%10% to $438$718 million in 2006 compared to $549from $654 million in 2005, mainly due to the aforementioned sales of NFU and Agri. Excluding NFU and Agri, specialty linesas net written premiums increased $41 million, or 12%, from 2005.for both the middle market division and the small business division. The increase was mainly due to a $30 million increase in net written premiums at OBPP to $179 million in 2006 from $149 million in 2005, principally driven by long-term care and lawyers professional liability products. Net written premiums for all other specialty lines businesses increased modestly or were essentially flat when compared with the prior year.


      Personal Lines. The personal lines combined ratio for 2006 was 96%, compared to 91% for 2005. The loss and LAE ratio increased to 64% in 2006, compared to 62% in 2005, primarily due to favorable items in 2005. The personal lines 2005 loss and LAE ratio included the benefit of the settlement of the retiree medical plan and the favorable impact of the reallocation of IBNR reserves to run-off, which each reduced the loss and LAE ratio by approximately one point. The expense ratio increased to 32% in 2006, compared to 29% in the prior year, mainly due to increased incentive compensation expenses of approximately one pointmiddle market division was experienced in 2006property and the benefit of the settlement of the retiree medical planinland marine products as well as at OBSP. The increase in 2005, which decreased the 2005 expense ratio by approximately two points. In addition, the 2006 expense ratiosmall business was higher than the 2005 expense ratio by approximately one point as expense reductions were not proportional to reductionsexperienced in earned premiums.

      Net written premiums for personal lines decreased by 12% to $801 million in 2006 compared to $910 million in 2005. The decrease was primarily attributable to reduced writings at AutoOne due to the size of New York’s assigned risk pool significantly decreasing and reduced writings in traditional personal lines due to an increasingly competitive auto market and state-mandated rate decreases in Massachusetts. With respect to the New York assigned risk pool, market trends indicate that assigned risk volumes are expected to decline to approximately $200 million in 2007, down from $240 million in 2006, $383 million in 2005 and $629 million in 2004. Assigned risk volumes in New Jersey are also expected to decline. Market trends indicate that the assigned risk pool in New Jersey is expected to decline to approximately $140 million in 2007, down from $175 million in 2006, $275 million in 2005 and $375 million in 2004. OneBeacon expects a continued reduction in AutoOne’s premium volume in 2007 reflective of these trends.small business package products.

      Commercial Lines. The commercial lines combined ratio for 2006 wasdecreased to 95% compared to 97%from 99% for 2005. Lower catastrophe losses caused the commercial lines 2006 combined ratio to decrease six points from 2005. Commercial lines 2006 results included $31 million in current and prior accident year catastrophe losses, which included $21 million in losses incurred from hurricanes Katrina, Rita and Wilma, compared to $64 million in 2005, which included $56 million in losses incurred from hurricanes Katrina, Rita and Wilma. Partially offsetting this decrease was the favorable impact of one point related to the benefit of the settlement of the retiree medical plan in 2005 and two points related to the reallocation in 2005 of IBNR reserves to run-off.

              Personal Lines.Net written premiums for commercialpersonal lines increaseddecreased by 10%12% to $718$801 million in 2006 compared to $654$910 million in 2005. The decrease was primarily attributable to reduced writings at AutoOne due to the size of New York's assigned risk pool significantly decreasing and reduced writings in traditional personal lines due to an increasingly competitive automobile market and state-mandated rate decreases in Massachusetts. With respect to the New York assigned risk pool, assigned risk volumes declined to $253 million in 2006, down from $383 million in 2005 as net written premiumsand $629 million in 2004. Assigned risk volumes in New Jersey are also expected to decline. The assigned risk pool in New Jersey declined to $141 million in 2006, down from $247 million in 2005 and $375 million in 2004. OneBeacon expects a continued reduction in AutoOne's premium volume in 2007 reflective of these trends.

              The personal lines combined ratio for 2006 increased to 96% from 92% for both2005. The loss and LAE ratio increased 1 point to 64% in 2006 from 63% in 2005, primarily due to favorable items in 2005. The personal lines 2005 loss and LAE ratio included the middle market divisionbenefit of the settlement of the retiree medical plan and the small business division.favorable impact of the reallocation of IBNR reserves to run-off, which each reduced the loss and LAE ratio by approximately one point. The increaseexpense ratio increased to 32% in net written premiums2006, compared to 29% in the middle market divisionprior year, mainly due to increased incentive compensation expenses of approximately one point in 2006 and the benefit of the settlement of the retiree medical plan in 2005, which decreased the 2005 expense ratio by approximately two points. In addition, the 2006 expense ratio was experiencedhigher than the 2005 expense ratio by approximately one point as expense reductions were not proportional to reductions in property and inland marine products as well as at OBSP. The increase in small business was experienced in small business package products.earned premiums.

      Other Lines.         Run-off.For 2006, other linesrun-off business generated an underwriting loss of $44 million compared to an underwriting loss of $133 million in 2005. The 2005 results included $107 million in adverse development, mainly from 2002 and prior accident years, which was primarily due to higher than anticipated defense costs and higher damages from liability assessments in general liability and multiple peril lines. As described above, 2005 also included a reallocation of $34 million of IBNR reserves from ongoing lines of business to run-off.

      OneBeacon Results - Year Ended December 31, 2005 versus Year Ended December 31, 2004

      Overview

      OneBeacon’s pre-tax income for 2005 was $332 million, compared to pre-tax income of $223 million for 2004, and its combined ratio was 98% for 2005, compared to 99% for 2004.

      Higher catastrophe losses caused OneBeacon’s 2005 combined ratio to increase approximately three points from 2004. OneBeacon’s 2005 results included $82 million in catastrophe losses, which included $69 million in catastrophe losses related to hurricanes Katrina, Rita and Wilma, compared to $31 million of catastrophe losses in 2004. In addition, OneBeacon’s 2005 results included a $54 million gain from the settlement of its retiree medical plan, which reduced the 2005 combined ratio by three points, and a release of approximately $20 million of the New York assigned risk liability due to the shrinking of the New York assigned risk pool, which reduced the 2005 combined ratio by one point. OneBeacon’s 2005 and 2004 results also include $95 million and $100 million, respectively, in adverse development, primarily relating to 2002 and prior accident years, which impacted the combined ratio by approximately four points in each year.

      OneBeacon’s total revenues decreased 9% in 2005 to $2,534 million, compared to $2,787 million in 2004, due principally to an 11% decline in earned premiums in 2005. The decrease in earned premiums was partially due to lower commercial lines premiums resulting from the sale of the renewal rights on most of OneBeacon’s non-Atlantic Mutual New York commercial lines business to Tower Insurance Group late in 2004. As a result of this transaction, approximately $110 million of premiums written in 2004 were subject to this renewal rights agreement and were not written by OneBeacon during 2005. OneBeacon’s commercial lines also had a one-time premium increase of approximately $135 million in 2004 from the assumption of unearned premium from the Atlantic Specialty transaction.


      In addition, personal lines premium decreased in 2005 due to lower volumes in Massachusetts and New York. New Jersey Skylands Insurance also had lower premiums in 2005 as compared to 2004.

      Net realized investment gains for 2005 included a realized loss of $55 million due to an other-than-temporary impairment with respect to OneBeacon’s investment in Montpelier Re common shares. During 2005, the market value of Montpelier Re common shares decreased from $38.45 per share to $18.90 per share. OneBeacon’s original cost of this investment in 2001 was $105 million, which was subsequently increased by $65 million in equity in earnings recorded from 2001 to March 2004, the period in which OneBeacon accounted for the investment under the equity method of accounting. The impairment charge represented the difference between OneBeacon’s GAAP cost of $170 million and the investment’s fair value of $116 million at December 31, 2005.

      Other revenue for 2005 included $34 million in gains recorded from the sales of two subsidiaries, NFU and Traders and Pacific Insurance Company. During 2004, OneBeacon sold two of its subsidiaries, Potomac Insurance Company of Illinois (“Potomac”) and Western States Insurance Company (“Western States”), as well as its boiler inspection service business, for a total gain of $22 million that was recognized in other revenue.

      As a result of an actuarial review completed in the fourth quarter of 2005, OneBeacon reallocated some of its IBNR reserves from some of the ongoing lines of business to run-off operations. This shifted $34 million of IBNR reserves from specialty lines ($10 million), commercial lines ($12 million) and personal lines ($12 million) to run-off operations. This adjustment had no impact on OneBeacon’s total combined ratio.

      Specialty Lines. The specialty lines combined ratio for 2005 was 85%, compared to 90% for 2004. The decrease in the combined ratio was mainly due to the reallocation of IBNR reserves to run-off operations and the settlement of the retiree medical plan, which reduced the combined ratio by a total of five points. Specialty lines results in 2005 included $13 million of losses ($9 million at IMU and $4 million atAgri) related to hurricanes Katrina, Rita and Wilma, which unfavorably impacted the combined ratio by three points. In 2004, the combined ratio for specialty lines was adversely impacted by two points ($11 million) from the four hurricanes in the southeastern United States.

      Net written premiums for 2005 decreased by 3% to $549 million, compared to $566 million in 2004, as increases at OBPP, which included $28 million of net written premium from a renewal rights agreement with Chubb Specialty Insurance that took effect during the third quarter of 2005 were offset by the sale of NFU in the third quarter of 2005.

      Personal Lines. The personal lines combined ratio for 2005 was 91%, compared to 91% for 2004. The loss and LAE ratio decreased in 2005 primarily due to strong homeowners results, aided by favorable catastrophe experience resulting from a relatively mild winter and lack of northeast wind events, as well as lower frequencies in OneBeacon’s legacy auto business. The settlement of the retiree medical plan favorably impacted the 2005 combined ratio by three points. In addition, the personal lines combined ratio was favorably impacted by one point from the reallocation of IBNR reserves to run-off operations.

      Commercial Lines. The commercial lines combined ratio for 2005 was 97%, compared to 98% for 2004. The reallocation of IBNR reserves to run-off operations and the settlement of the retiree medical plan reduced the combined ratio in 2005 by a total of five points. Commercial lines results in 2005 included $56 million of losses related to hurricanes Katrina, Rita and Wilma, which impacted the combined ratio by nine points, while 2004 included storm losses of $13 million, which impacted the combined ratio by two points. The commercial lines 2004 combined ratio was also adversely impacted by transition and integration costs related to the Atlantic Specialty transaction and adverse results from its non-Atlantic Mutual New York commercial lines book.

      Other Lines. Other lines for 2005 included approximately $107 million in adverse development, mainly from 2002 and prior accident years, which was primarily due to higher than anticipated defense costs and higher damages from liability assessments in general liability and multiple peril lines. In addition, during 2005, OneBeacon reallocated $34 million of IBNR reserves from some of its ongoing lines of business to run-off lines.


      White Mountains Re

      Financial results and GAAP combined ratios for White Mountains Re for the years ended December 31, 2007, 2006 and 2005 and 2004 follows:

       

       

      Year Ended December 31,

       

      Millions

       

      2006

       

      2005

       

      2004

       

      Gross written premiums

       

      $

      1,624.5

       

      $

      1,981.3

       

      $

      1,933.3

       

      Net written premiums

       

      $

      1,290.0

       

      $

      1,304.1

       

      $

      1,246.3

       

      Earned insurance and reinsurance premiums

       

      $

      1,241.2

       

      $

      1,371.6

       

      $

      1,265.5

       

      Net investment income

       

      182.7

       

      148.9

       

      98.5

       

      Net realized investment gains

       

      59.0

       

      76.8

       

      29.6

       

      Other revenue

       

      47.8

       

      33.5

       

      36.1

       

      Total revenues

       

      1,530.7

       

      1,630.8

       

      1,429.7

       

      Losses and LAE

       

      884.6

       

      1,237.9

       

      918.9

       

      Insurance and reinsurance acquisition expenses

       

      287.2

       

      279.6

       

      271.8

       

      Other underwriting expenses

       

      94.7

       

      107.0

       

      122.9

       

      General and administrative expenses

       

      24.2

       

      12.4

       

      15.1

       

      Accretion of fair value adjustment to loss and LAE reserves

       

      1.5

       

      10.9

       

      10.1

       

      Interest expense on debt

       

      1.5

       

      .4

       

      3.8

       

      Total expenses

       

      1,293.7

       

      1,648.2

       

      1,342.6

       

      Pre-tax earnings (loss)

       

      $

      237.0

       

      $

      (17.4

      )

      $

      87.1

       

       
       Year Ended December 31,
       
      Millions

       
       2007
       2006
       2005
       
       Gross written premiums $1,295.3 $1,624.5 $1,981.3 
        
       
       
       
       Net written premiums $1,095.7 $1,290.0 $1,304.1 
        
       
       
       
       Earned insurance and reinsurance premiums $1,146.8 $1,241.2 $1,371.6 
       Net investment income  210.5  182.7  148.9 
       Net realized investment gains  63.7  59.0  76.8 
       Other revenue  5.0  47.8  33.5 
        
       
       
       
        Total revenues  1,426.0  1,530.7  1,630.8 
        
       
       
       
       Losses and LAE  701.0  884.6  1,237.9 
       Insurance and reinsurance acquisition expenses  255.0  287.2  279.6 
       Other underwriting expenses  118.5  94.7  107.0 
       General and administrative expenses  26.2  24.2  12.4 
       Accretion of fair value adjustment to loss and LAE reserves  5.4  1.5  10.9 
       Interest expense on debt  23.2  1.5  .4 
        
       
       
       
        Total expenses  1,129.3  1,293.7  1,648.2 
        
       
       
       
      Pre-tax earnings (loss) $296.7 $237.0 $(17.4)
        
       
       
       
       
       Year Ended December 31,
       
       
       2007
       2006
       2005
       
      GAAP ratios:       
       Loss and LAE 61%71%90%
       Expense 33%31%28%
        
       
       
       
        Total Combined 94%102%118%
        
       
       
       

       

       

      Years Ended December 31,

       

       

       

      2006

       

      2005

       

      2004

       

      GAAP ratios:

       

       

       

       

       

       

       

      Loss and LAE

       

      71

      %

      90

      %

      73

      %

      Expense

       

      31

      %

      28

      %

      31

      %

      Total Combined

       

      102

      %

      118

      %

      104

      %

      White Mountains Re Results - Results—Year Ended December 31, 2007 versus Year Ended December 31, 2006

              White Mountains Re's pre-tax income for 2007 was $297 million compared to a $237 million for 2006, and its GAAP combined ratio was 94% for 2007 compared to 102% for 2006. The loss and LAE ratio for 2007 included $76 million, or 7 points, of pre-tax catastrophe losses, net of reinsurance and reinstatement premiums, primarily from European windstorms Kyrill and Hanno in the first quarter of 2007, floods that impacted the United Kingdom during the second and third quarters, the Peru earthquake, hurricanes Dean and Felix, and floods in Jakarta, Slovenia, and Mexico. In addition to these catastrophes, White Mountains Re recorded $9 million of net unfavorable development in 2007, which consisted of $63 million related to A&E exposures, $28 million in strengthening of certain of its U.S. casualty reserves and $7 million related to surety business. These losses were largely offset by favorable development of $91 million, primarily on property lines from prior accident years. The loss and LAE ratio for 2006 included net adverse development of $218 million, or 18 points, which included a charge of $137 million arising from the Olympus reimbursement described below, $92 million ($86 million net of reinstatement premiums) in adverse development on hurricanes Katrina, Rita and Wilma, and $55 million of adverse development from casualty losses associated with the Risk Capital acquisition in 2000. These losses were partially offset by favorable development on various lines, including $46 million and $19 million of favorable development on the property and agriculture lines of business, respectively.

              White Mountains Re's gross written premiums decreased by 20% to $1,295 million in 2007, compared to $1,625 million in 2006, and net written premiums decreased by 15% to $1,096 million in 2007 compared to $1,290 million in 2006. Excluding written premiums from Sirius America, which White Mountains Re sold during the third quarter of


      2006, gross written premiums decreased by $258 million, or 17%, and net written premiums decreased by $155 million, or 12%, reflecting reductions in most lines of business. These decreases were primarily due to pricing, terms and conditions that no longer met White Mountains Re's underwriting guidelines. White Mountains Re has been experiencing significant price competition in the reinsurance market due to excess underwriting capacity. This excess underwriting capacity, combined with fewer catastrophic events in 2007, has resulted in downward pressure on pricing. Higher ceding company retentions also reduced White Mountains Re's premium volume. Decreases in net written premiums were partially offset by the non-renewal in 2007 of a series of ceded property Second Event Industry Loss Warranty Covers that White Mountains Re had purchased during the first quarter of 2006. White Mountains Re ceded approximately $20 million in premiums related to the Second Event Industry Loss Warranty Covers in the first quarter of 2006. The decreases in volume were also partially offset by more favorable foreign currency exchange rates versus the U.S. dollar, particularly the Swedish Krona.

              Net investment income in 2007 increased by 15% to $211 million compared to the prior year mainly due to an increase in invested assets from the transfer of White Mountains Re's investment in Symetra to White Mountains for cash in December 2006, proceeds from the issuance of the preference shares in May 2007, as well as capital contributions of $100 million from White Mountains in June 2006.

              White Mountains Re recognized fee income of $10 million from Olympus and Helicon in 2007, $8 million of which was recorded as other revenues, compared to $12 million of fee income from Olympus and Helicon in 2006, $9 million of which was recorded as other revenues. White Mountains Re did not renew its quota share arrangements with Olympus and Helicon for 2008. Olympus continues to be responsible to pay losses on exposures that have been ceded to it and will continue to earn premiums related primarily to the run-off of underwriting year 2007. White Mountains Re acquired Helicon on January 7, 2008.

              Other revenues for 2007 also included $13 million of realized foreign exchange losses compared to $21 million of foreign exchange gains for the comparable prior period. During the fourth quarter 2007, White Mountains Re sold its' wholly-owned subsidiary Stockbridge Insurance Company for $26 million in cash to a third party and recognized a $10 million pre-tax gain on the sale through other revenues. In 2006, other revenues included a $14 million pre-tax gain from the sale of Sirius America, a wholly-owned subsidiary of White Mountains Re.

              Other underwriting expenses in 2007 increased by $24 million to $119 million compared to 2006. This increase is due to increased incentive compensation accruals, movement in foreign exchange rates as the Swedish Krona strengthened against the U.S. dollar, as well as increased expenses arising from the expansion of White Mountains Re's Bermuda advisory operations. In addition, during the first quarter of 2006, Scandinavian Re reduced its unallocated loss adjustment expense reserve by approximately $7 million as a result of an evaluation of the remaining run-off contracts.

              General and administrative expenses in 2007 increased by $2 million to $26 million compared to 2006. This increase is mainly due to costs expensed in connection with the issuance of $250 million of non-cumulative perpetual preference shares during the second quarter of 2007 and $400 million face value of senior unsecured notes during the first quarter of 2007, as further discussed below.

              In May 2007, WMRe Group issued $250 million of non-cumulative perpetual preference shares and received $246 million of proceeds, net of $4 million of issuance costs and commissions. Holders of the WMRe Preference Shares receive dividends on a non-cumulative basis only when, as and if declared by White Mountains Re at a fixed dividend rate of 7.506% for the period from issuance until June 30, 2017 and a variable dividend rate thereafter. The WMRe Preference Shares are redeemable only at the option of White Mountains Re. During 2007, White Mountains Re declared and paid $11 million in dividends to holders of the WMRe Preference Shares.

              In March 2007, White Mountains Re issued $400 million face value of senior unsecured notes that have an annual effective yield of 6.5% for net proceeds of $392 million. In anticipation of the issuance of the WMRe Senior Notes, White Mountains Re entered into an interest rate lock agreement to hedge its interest rate exposure and recorded a $2 million loss in accumulated other comprehensive income related to this agreement, which is being amortized into interest expense over the life of the WMRe Senior Notes. White Mountains Re deferred $4 million in expenses related to the issuance of the WMRe Senior Notes (including a $3 million underwriting discount), which are also being recognized into interest expense over the life of the WMRe Senior Notes.

              White Mountains Re's interest expense in 2007 increased by $22 million, primarily due to the interest on the aforementioned WMRe Senior Notes.


      White Mountains Re Results—Year Ended December 31, 2006 versus Year Ended December 31, 2005

      White Mountains Re’sRe's pre-tax income for 2006 was $237 million compared to a pre-tax loss of $17 million for 2005, and its GAAP combined ratio was 102% for 2006 compared to 118% for 2005. The improved combined ratio and the increase in pre-tax income resulted primarily from significantly lower catastrophe losses. During 2006, White Mountains Re recorded $86 million of unfavorable development, net of reinstatement premiums and reinsurance, related to hurricanes Katrina, Rita and Wilma and $137 million in losses and $9 million of forgone override commissions related to the Olympus reimbursement. During 2005, White Mountains Re recognized $351 million in pre-tax losses, net of reinstatement premiums and reinsurance from hurricanes Katrina, Rita and Wilma. 2005 also included $57 million of other significant property catastrophe losses, primarily from European storm Erwin and floods in Europe.

      Excluding the unfavorable development from Katrina, Rita and Wilma and the Olympus reimbursement, White Mountains Re’sRe's underwriting units performed well in 2006, reflecting generally more favorable weather conditions and continued favorable prices, terms and conditions within the reinsurance marketplace. Excluding the additional losses from hurricanes Katrina, Rita and Wilma and the Olympus reimbursement, favorable development on prior year reserves of $11 million resulted primarily from continued favorable run off of recent underwriting years at Sirius International of $46 million and favorable development of $19 million arising from Folksamerica’sFolksamerica's agriculture line of business, offset by unfavorable development of $55 million from casualty losses associated with the Risk Capital acquisition.

      White Mountains Re’sRe's 2006 gross written premiums decreased by 18% to $1,625 million and net written premiums decreased by 1% to $1,290 million from $1,304 million in 2005. White Mountains Re reduced its overall property exposure and Folksamerica non-renewed its excess offshore energy and marine business in the Gulf of Mexico starting on January 1, 2006, which caused gross written premiums to decline substantially in 2006 versus


      2005. All of the non-renewed excess offshore energy and marine business was subject to Folksamerica’sFolksamerica's reinsurance treaty with Olympus, under which Folksamerica ceded up to 75% of this business in 2005. As a result, the impact on the change in White Mountains Re’sRe's net written premiums from 2005 to 2006 was significantly less than the impact on the change in its gross written premiums over the same period. Gross and net written premiums were also lower during 2006 due to lower reinstatement premiums on property catastrophe reinsurance, which had primarily resulted from reinstated coverage after hurricanes Katrina and Rita in 2005, and lower premiums from Sirius America, which was sold in August 2006. Sirius America contributed $71 million and $39 million of gross and net written premiums, respectively, in 2006, compared to $248 million and $87 million, respectively, in 2005. Additionally, gross and net written premiums on casualty lines were lower in 2006, due mainly to pricing, terms and conditions that did not meet White Mountains Re’sRe's pricing guidelines and due to higher ceding company retentions. These decreases were partially offset by increases in certain non-catastrophe exposed classes, particularly in specialty lines.

      White Mountains Re’sRe's net investment income increased by $34 million in 2006 as a result of higher overall yields and a larger investment asset base, principally due to contributions from White Mountains. Other underwriting expenses decreased in 2006 by $12 million, or 11%, from 2005, primarily due to a reduction in unallocated loss adjustment expense reserves of approximately $7 million during the first quarter of 2006 resulting from an evaluation of the remaining run-off contracts at Scandinavian Re, as well as a reduction in incentive compensation accruals. General and administrative expenses increased to $24 million in 2006 from $12 million in 2005. The increase is primarily due to accruals related to the relocation of the underwriting advisory operations from Ireland to Bermuda and costs associated with expanding the Bermuda advisory operations.

      Accretion of the fair value adjustment to loss and LAE reserves decreased in 2006 by $9 million, or 86%, from $11 million in 2005 as a result of a change in the rate of accretion of the fair value adjustment to loss and LAE reserves that was established in the purchase accounting for the Sirius Acquisition. The change in accretion resulted from the aforementioned evaluation of the remaining run-off contracts at Scandinavian Re and will be made prospectively over the remaining amortization period.

      White Mountains Re recognized fee income of $12 million from Olympus and Helicon in 2006, $9 million of which was recorded as other revenues, compared to $61 million of fee income from Olympus in 2005, $28 million of which was recorded as other revenues. The decrease in fee income was primarily the result of a reduction in amounts ceded to Olympus and Helicon in 2006 compared to 2005 and due to FHCFolksamerica Holdings Company ("Folksamerica Holdings") waiving $9 million of override commission due from Olympus in accordance with the


      Olympus reimbursement. Other revenues in 2006 also included a $14 million gain from the sale of Sirius America and $21 million of realized foreign exchange gains. In 2005, other revenue also included a $5 million gain from the sale of California Indemnity Insurance Company, a wholly-owned subsidiary of White Mountains Re acquired in 2004 as part of the Sierra acquisition.

      Olympus reimbursement.In June 2006, following the receipt of new claims information reported from several ceding companies and subsequent reassessment of the ultimate loss exposures, White Mountains Re increased its gross loss estimates for hurricanes Katrina, Rita and Wilma by $201 million. This was mostly on Folksamerica Re’sFolksamerica's off-shore energy and marine exposures attributable to retrocessional arrangements and business interruption coverage. As a result, Folksamerica Re set its gross loss and LAE reserves as of June 30, 2006 on offshore energy and marine exposures for hurricanes Katrina and Rita at full contract limits. Starting January 1, 2006, Folksamerica Re non-renewed its excess offshore energy and marine business in the Gulf of Mexico.

      Under the terms of Folksamerica Re’sFolksamerica's 2005 quota share reinsurance treaty with Olympus, $139 million of the loss, net of reinstatement premiums, from hurricanes Katrina, Rita and Wilma recorded in the second quarter of 2006 was ceded to Olympus. However, FHCFolksamerica Holdings entered into an indemnity agreement with Olympus on June 16, 2006, under which it agreed to reimburse Olympus for up to $137 million of these losses, which were recorded as loss and LAE during the second quarter of 2006. FHCFolksamerica Holdings also waived override commissions on premiums earned by Olympus after March 31, 2006 for reinsurance contracts recommended by White Mountains Re with an effective date of December 31, 2005 and prior. White Mountains Re expects that the commission waivers will total approximately $10$12 million. Folksamerica Re will continue to cedeceded 35% of its 2007 underwriting year short-tailed excess of loss business, mainly property and marine, with Olympus and Helicon sharing approximately 55% and 45%, respectively, in 2007. Olympus will continue to be responsible to pay losses on exposures that have been ceded to it and will continue to receive cessions from Folksamerica Re.


      White Mountains Re Results - Year Ended December 31, 2005 versus Year Ended December 31, 2004

      White Mountains Re’s pre-tax loss for 2005 was $17 million, compared to pre-tax income of $87 million for 2004, and its GAAP combined ratio was 118% for 2005, compared to 104% for 2004. White Mountains Re’s 2005 results included pre-tax losses, net of reinstatements and reinsurance, of $351 million from hurricanes Katrina, Rita and Wilma and $57 million of other significant property catastrophe losses, primarily from European storm Erwin and floods in Europe, which added a total of 30 points to the combined ratio. In addition, White Mountains Re recorded $51 million of net unfavorable loss reserve development in 2005 (discussed below), which contributed 4 points to the loss ratio. During 2005, earnings from business segments not impacted by the property catastrophe events and increased net investment income partially offset these losses. Additionally, White Mountains Re’s expense ratio decreased to 28% in 2005, from 31% in 2004, due mainly to a decrease in incentive compensation accruals. White Mountains Re’s 2004 results included $135 million of pre-tax losses, net of reinstatements and reinsurance, from the four hurricanes that affected the southeastern United States and the tsunami that impacted South Asia, which added a total of 11 points to the combined ratio.

      White Mountains Re’s 2005 gross written premiums increased by 3% to $1,981 million and net written premiums increased by 5% to $1,304 million from 2004. The increase was due primarily to Sirius International, which was acquired in the second quarter of 2004 and contributed nine months of premiums in 2004 versus twelve months in 2005, partially offset by decreased premium volume at both Sirius International and Folksamerica as a result of the general softness in the reinsurance market prior to hurricanes Katrina, Rita and Wilma.Esurance

      White Mountains Re’s net investment income increased in 2005 compared to 2004 primarily as a result of the inclusion of Sirius International’s investment portfolio, which was acquired during the second quarter of 2004, for the entire year of 2005. Other underwriting expenses decreased in 2005 by $16 million, or 13%, from 2004.

      White Mountains Re recorded $51 million of net unfavorable loss reserve development in 2005, the majority of which resulted from a detailed, ground-up asbestos study completed by White Mountains Re in 2005. The study analyzed all insureds that have reported over $250,000 of asbestos claims to Folksamerica and a significant sample of all other insureds with reported asbestos claims of less than $250,000. Comparing estimates generated by the study to Folksamerica exposed limits by underwriting year led to an increase of approximately $50 million in IBNR during the third quarter of 2005. This unfavorable development was partially offset by favorable development in the Sirius International reserve portfolio of approximately $12 million, mainly from the three most recent underwriting years. Included in the net unfavorable loss development in 2005 was $23 million from workers compensation reserves acquired in 2004 as part of the Sierra acquisition. However, this amount was offset dollar-for-dollar by a decrease in the balance due under the adjustable note issued in conjunction with this acquisition.

      White Mountains Re receives fee income on reinsurance placements referred to Olympus and is entitled to a profit commission based on net underwriting profits on referred business. During 2005 and 2004, White Mountains Re earned $61 million and $69 million, respectively, of fee income from Olympus. The decrease in fee income from the prior period is primarily due to the significant loss events in 2005, including hurricanes Katrina, Rita and Wilma, which resulted in White Mountains Re not earning any profit commission in 2005 compared to earning $12 million of profit commission in 2004. The profit commission arrangement with Olympus is subject to a deficit carryforward whereby net underwriting losses from one underwriting year carryover to future underwriting years. As a result of the significant loss events in 2005, Olympus recorded a substantial net underwriting loss for the year. Accordingly, White Mountains Re does not expect to record profit commissions from Olympus for the foreseeable future.

      Effective January 1, 2006, Folksamerica renewed its quota-share reinsurance arrangements with Olympus on modified terms and Sirius International terminated its agreement with Olympus. The 2005 and prior underwriting year business will continue to run-off with Olympus. For a further discussion, see “Reinsurance Protection”, under “WHITE MOUNTAINS RE” in Item 1.

      53




      Esurance

      Esurance’s        Esurance's financial results and GAAP combined ratios for the years ended December 31, 2007, 2006 and 2005 follows:

       
       Year Ended December 31,
       
      Millions

       
       2007
       2006
       2005
       
       Gross written premiums $802.5 $599.5 $351.9 
        
       
       
       
       Net written premiums $798.5 $595.9 $349.1 
        
       
       
       
       Earned insurance and reinsurance premiums $763.3 $527.5 $306.8 
       Net investment income  29.6  18.4  9.8 
       Net realized investment gains  4.5  6.9  2.1 
       Other revenue  13.6  7.4  3.0 
        
       
       
       
        Total revenues  811.0  560.2  321.7 
        
       
       
       
       Losses and LAE  622.4  383.9  206.2 
       Insurance and reinsurance acquisition expenses  202.7  135.3  90.8 
       Other underwriting expenses  58.4  48.8  37.2 
       General and administrative expenses  .2  .2   
        
       
       
       
        Total expenses  883.7  568.2  334.2 
        
       
       
       
      Pre-tax loss $(72.7)$(8.0)$(12.5)
        
       
       
       
       
       Year Ended December 31,
       
       
       2007
       2006
       2005
       
      GAAP ratios:       
       Loss and LAE 82%73%67%
       Expense 34%35%42%
        
       
       
       
        Total Combined 116%108%109%
        
       
       
       

      Esurance Results—Year Ended December 31, 2007 versus Year Ended December 31, 2006

              Esurance's pre-tax loss for 2007 was $73 million compared to a pre-tax loss of $8 million for 2006. Esurance's GAAP combined ratio was 116% for 2007 compared to 108% for 2006. Esurance's loss ratio increased to 82% in 2007 from 73% in 2006 due to a higher current year loss ratio and 2004 follows:$30 million, or 4 points, of prior period adverse loss development. During the second quarter of 2007, Esurance began to experience higher than expected paid loss severity for injury claims. A review of all open liability claim files was completed third quarter. As a result, case reserves were increased to reflect the higher loss severity for injury claims. Esurance is seeing higher injury claim severities reported by its peer group and in industry data, indicating that the trend is not unique to Esurance's business. In response to higher claim costs, Esurance has increased prices for injury coverages. Due to these rate increases and effects of competition in the personal auto market, Esurance expects to grow more slowly in 2008 than in previous years. Esurance's expense ratio decreased to 34% in 2007 from the prior period expense ratio of 35% as lower operating expenses offset higher acquisition costs that resulted from increased competition in the personal auto market.

       

       

      Year Ended December 31,

       

      Millions

       

      2006

       

      2005

       

      2004

       

      Gross written premiums

       

      $

      599.5

       

      $

      351.9

       

      $

      201.3

       

      Net written premiums

       

      $

      595.9

       

      $

      349.1

       

      $

      199.4

       

       

       

       

       

       

       

       

       

      Earned insurance and reinsurance premiums

       

      $

      527.5

       

      $

      306.8

       

      $

      176.5

       

      Net investment income

       

      18.4

       

      9.8

       

      3.5

       

      Net realized investment gains

       

      6.9

       

      2.1

       

      1.1

       

      Other revenue

       

      7.4

       

      3.0

       

      2.2

       

      Total revenues

       

      560.2

       

      321.7

       

      183.3

       

       

       

       

       

       

       

       

       

      Losses and LAE

       

      383.9

       

      206.2

       

      122.4

       

      Insurance and reinsurance acquisition expenses

       

      135.3

       

      90.8

       

      30.3

       

      Other underwriting expenses

       

      48.8

       

      37.2

       

      26.8

       

      General and administrative expenses

       

      0.2

       

       

       

      Total expenses

       

      568.2

       

      334.2

       

      179.5

       

      Pre-tax earnings (loss)

       

      $

      (8.0

      )

      $

      (12.5

      )

      $

      3.8

       

              

       

       

      Years Ended December 31,

       

       

       

      2006

       

      2005

       

      2004

       

      GAAP ratios:

       

       

       

       

       

       

       

      Loss and LAE

       

      73

      %

      67

      %

      69

      %

      Expense

       

      35

      %

      42

      %

      33

      %

      Total Combined

       

      108

      %

      109

      %

      102

      %

      Net written premium increased to $799 million in 2007, a 34% increase from 2006. As of December 31, 2007, Esurance's in-force policy count totaled 485,000, a 30% increase over 2006. During 2007, Esurance expanded its marketing programs through online video, search, and television while making site changes that improved the conversion rate (i.e. the ratio of policies written to quotes generated).

              During 2007, Esurance wrote business in 28 states, the largest of which were California (with 22% of direct premium written), Florida (16%), New York (7%), Texas (6%) and Michigan (5%).

      Esurance Results - Results—Year Ended December 31, 2006 versus Year Ended December 31, 2005

      Esurance’s        Esurance's pre-tax loss for 2006 was $8 million compared to a pre-tax loss of $13 million for 2005. Esurance’sEsurance's GAAP combined ratio was 108% for 2006 compared to 109% for 2005. Esurance’sEsurance's loss ratio increased to 73% in 2006 from 67% in the prior period, due to rate reductions and one point of unfavorable development on loss reserves in 2006 compared to three points of favorable development on loss reserves in the prior year. The expense ratio decreased to 35% in 2006 from the prior period expense ratio of 42% due to lower acquisition costs and additional operating efficiencies.

      Net written premium increased to $596 million, a 71% increase from 2005. As of December 31, 2006, Esurance’sEsurance's in-force policy count totaled 372,688, a 76% increase over 2005. During 2006, Esurance continued to expand through national and local television advertising, online marketing, direct mail, and online agency channels. More site traffic and improved conversion rates lowered the costs of acquiring new customers during 2006.

              During 2006, Esurance writeswrote business in 24 states. During 2006, Esurance’sstates, the largest statesof which were California (with 19% of direct premium written), Florida (17%), New York (9%), Texas (6%) and Michigan (6%).

      Esurance Results - Year Ended December 31, 2005 versus Year Ended December 31, 2004

      Esurance’s pre-tax loss for 2005 was $13 million, compared to pretax income of $4 million for 2004. Esurance’s GAAP combined ratio was 109% for 2005, compared to 102% for 2004. Esurance’s loss ratio decreased to 67% in 2005, from 69% in the prior year, despite $2 million in losses sustained from hurricane Wilma during 2005. The decrease in the loss ratio resulted primarily from improved claims performance and increased pricing sophistication. The expense ratio increased to 42% in 2005, from 33% in the prior year, mainly due to higher acquisition expenses from Esurance’s marketing programs, driven by increased competition for new customers. The combined ratio was also adversely impacted by approximately 3 points from the adoption of a new long-term incentive compensation plan in 2005.

      Net written premiums increased to $349 million in 2005, a 75% increase from 2004. As of December 31, 2005, Esurance’s in-force policy count totaled 211,851, a 79% increase over 2004, and it wrote business in twenty-two states. For the year ended December 31, 2005, Esurance’s largest states were Florida (with 20% of direct premium written), California (20%), Texas (9%), New York (8%) and Michigan (7%).


      Other Operations

      Other Operations consists of the operations of the Company, the Company’sCompany's intermediate subsidiary holding companies, White Mountains’Mountains' weather risk management and variable annuity reinsurance businesses, the consolidated results of the Tuckerman Funds, the International American Group, WM Advisors and White Mountains’Mountains' investments in Symetra, Pentelia, Delos and Montpelier Re.Re (until its disposition in May 2007).

              A summary of White Mountains’Mountains' financial results from its Other Operations segment for the years ended December 31, 2007, 2006 and 2005 and 2004 follows:

       

       

      Year Ended December 31,

       

      Millions

       

      2006

       

      2005

       

      2004

       

      Gross written premiums

       

      $

       

      $

      1.9

       

      $

       

       

      Net written premiums

       

      $

       

      $

      1.8

       

      $

       

       

       

       

       

       

       

       

       

      Earned insurance and reinsurance premiums

       

      $

       

      $

      1.8

       

      $

       

      Net investment income

       

      46.8

       

      90.4

       

      39.0

       

      Net realized investment gains (loss)

       

      50.4

       

      (89.1

      )

      21.0

       

      Gain on sale of shares of OneBeacon

       

      171.3

       

       

       

      Other revenue

       

      108.0

       

      142.4

       

      95.0

       

      Total revenues

       

      376.5

       

      145.5

       

      155.0

       

       

       

       

       

       

       

       

       

      Losses and LAE

       

      3.9

       

      12.6

       

      4.6

       

      Insurance and reinsurance acquisition expenses

       

       

      .1

       

       

      Other underwriting expenses

       

      1.8

       

      1.6

       

      1.5

       

      General and administrative expenses

       

      178.6

       

      128.0

       

      204.0

       

      Interest expense on debt

       

      3.0

       

       

      .3

       

      Total expenses

       

      187.3

       

      142.3

       

      210.4

       

      Pre-tax income (loss)

       

      $

      189.2

       

      $

      3.2

       

      $

      (55.4

      )

       
       Year Ended December 31,
       
      Millions

       
       2007
       2006
       2005
       
       Gross written premiums $ $ $1.9 
        
       
       
       
       Net written premiums $ $ $1.8 
        
       
       
       
       Earned insurance and reinsurance premiums $ $ $1.8 
       Net investment income  84.4  46.8  90.4 
       Net realized investment gains (loss)  21.3  50.4  (89.1)
       Gain on sale of shares through the OneBeacon Offering    171.3   
       Other revenue—Tuckerman Funds  102.1  89.5  93.2 
       Other revenue  16.0  18.5  49.2 
        
       
       
       
        Total revenues  223.8  376.5  145.5 
        
       
       
       
       Losses and LAE  (6.8) 3.9  12.6 
       Insurance and reinsurance acquisition expenses      .1 
       Other underwriting expenses  2.7  1.8  1.6 
       General and administrative expenses—Tuckerman Funds  95.0  76.9  78.4 
       General and administrative expenses  69.3  101.7  49.6 
       Interest expense on debt  4.6  3.0   
        
       
       
       
        Total expenses  164.8  187.3  142.3 
        
       
       
       
      Pre-tax income $59.0 $189.2 $3.2 
        
       
       
       

      Other Operations Results - Results—Year Ended December 31, 2007 versus Year Ended December 31, 2006

              White Mountains' Other Operations segment reported pre-tax income of $59 million for 2007, compared to $189 million for 2006, which included a $171 million gain on the sale of OneBeacon shares. Excluding the gain on OneBeacon shares, pre-tax income from Other Operations increased by $41 million in 2007, due mainly to a $35 million decrease in incentive compensation expense, a $26 million increase in pre-tax income from the Symetra warrants ($17 million increase in net realized gains and a $9 million increase in net investment income) and $11 million of favorable development during 2007, primarily due to the settlement of a large claim at British Insurance Company. These increases in pre-tax income were partially offset by a $6 million increase in other non-incentive compensation expenses. In addition, White Mountains' weather risk management and variable annuity reinsurance businesses had pre-tax income (losses) of $(5) million and $(11) million, respectively, in 2007 compared to $(3) million and $2 million, respectively, in 2006.

      Other Operations Results—Year Ended December 31, 2006 versus Year Ended December 31, 2005

      White Mountains’Mountains' Other Operations segment reported pre-tax income of $189 million for 2006, compared to $3 million for 2005. The increase was primarily attributable to the $171 million gain on the sale of OneBeacon shares. In addition, the Montpelier Re investment accounted for $13 million in pre-tax income during 2006, compared to $63 million of pre-tax losses during 2005, which included $39 million of net investment income from the special dividend. These increased gains were partially offset by a $58 million increase in incentive compensation expense in 2006 compared to 2005. In addition, White Mountains’Mountains' weather risk management and variable annuity reinsurance businesses contributed $(3) million and $2 million, respectively, to pre-tax income for the Other Operations segment in their first year of operation.

      Other Operations Results - Year Ended December 31, 2005 versus Year Ended December 31, 2004

      White Mountains’ Other Operations segment reported pre-tax income of $3 million for 2005, compared to a pre-tax loss of $55 million for 2004. The following items contributed to the improved results in 2005: (1) an $84 million decrease in incentive compensation expense in 2005; (2) the special dividend from Montpelier Re in the 2005 first quarter, $39 million of which was reported in this segment; (3) $26 million of gains recorded in other revenues in 2005 from the settlement of two lawsuits in which White Mountains was a plaintiff; and (4) a $14 million increase in other net investment income. Additionally, the 2004 results included a $20 million realized loss from the impact that currency fluctuations had on hedging the cost of funding for the Sirius Acquisition. These loss-reducing factors were partially offset by a $126 million decrease in net realized investment gains from the valuation of the Montpelier Re warrants (a $110 million loss in 2005 versus a $16 million gain in 2004).


      II. Summary of Investment Results

      A summary of White Mountains’Mountains' consolidated pre-tax investment results for the years ended December 31, 2007, 2006 and 2005 and 2004 follows:

       

      Year Ended December 31,

       


       Year Ended December 31,
       
      Millions

      Millions

       

       

      2006

       

      2005

       

      2004

       

      2007
       2006
       2005
       

      Net investment income

       

      $

      435.5

       

      $

      491.5

       

      $

      360.9

       

      Net investment income $533.0 $435.5 $491.5 

      Net realized investment gains

       

      272.7

       

      112.6

       

      181.1

       

      Net realized investment gains 263.2 272.7 112.6 

      Net unrealized investment gains (losses)

       

      120.1

       

      (275.1

      )

      156.1

       

      Net unrealized investment gains (losses) 62.5 114.0 (285.7)

      Total GAAP pre-tax investment results

       

      $

      828.3

       

      $

      329.0

       

      $

      698.1

       

       
       
       
       
      Total GAAP pre-tax investment results $858.7 $822.2 $318.4 
       
       
       
       

              

      Gross investment returns versus typical benchmarks for the years ended December 31, 2007, 2006 2005 and 20042005 are as follows. For purposes of discussing rates of return, all percentages are presented gross of management fees and trading expenses in order to produce a more relevant comparison to benchmark returns, while all dollar amounts are presented net of any management fees and trading expenses.

       

      Year Ended December 31,

       


       Year Ended December 31,
       

       

      2006

       

      2005

       

      2004

       


       2007
       2006
       2005
       

      Fixed maturity investments

       

      5.9

      %

      2.7

      %

      4.4

      %

      Fixed maturity investments 6.4%6.0%2.6%

      Short-term investments

       

      6.1

       

      5.6

       

      1.9

       

      Short-term investments 5.2 6.1 5.6 

      Total fixed maturities

       

      6.0

       

      3.0

       

      4.1

       

      Lehman U.S. Aggregate Index

       

      4.3

       

      2.4

       

      4.3

       

       

       

       

       

       

       

       

      Total fixed maturities 6.2 6.0 3.0 
      Lehman U.S. Aggregate Index 7.0 4.3 2.4 

      Convertible fixed maturities

      Convertible fixed maturities

       

      4.3

       

      9.4

       

      6.4

       

      Common stock

       

      22.0

       

      5.1

       

      35.4

       


      Common stock

       

      9.0

       

      22.0

       

      5.2

       

      Other investments

       

      16.9

       

      3.9

       

      24.3

       

      Other investments 29.7 16.4 3.7 

      Total equities

       

      20.4

       

      4.7

       

      31.8

       

      S&P 500 Index (total return)

       

      15.8

       

      4.9

       

      10.9

       

      Total equities 14.9 20.2 4.7 

       

       

       

       

       

       

       

      S&P 500 Index (total return) 5.5 15.8 4.9 

      Total consolidated portfolio

       

      8.2

      %

      3.3

      %

      7.4

      %


      Total consolidated portfolio

       

      7.6

      %

      8.4

      %

      3.3

      %

      Investment Returns -YearReturns—Year Ended December 31, 20062007 versus Year Ended December31, 2005December 31, 2006

      White Mountains’Mountains' total pre-tax investment result was a gain of $828$859 million, a return of 8.2%7.6% for 2007 compared to a gain of $822 million, a return of 8.4% for 2006. White Mountains' total fixed maturity portfolio returned 6.2% during 2007, compared to 6.0% in 2006. White Mountains' fixed maturity portfolio provided positive results, as it avoided the sub-prime mortgage difficulties that have tainted many other investment portfolios, and its equity portfolio again exceeded industry benchmarks. Both benefited from the weakening U.S. dollar.

              Net investment income of $533 million in 2007 increased by 22% from $436 million in 2006, principally due to a higher average invested asset base in 2007, resulting from the sale of OneBeacon shares late in 2006 and the issuance of the WMRe Senior Notes and Preference Shares early in 2007. Net realized investment gains in 2007 of $263 million were relatively consistent with the $273 million reported in 2006. Pre-tax net unrealized gains decreased to $63 million in 2007, from $114 million in 2006, mainly due to a higher foreign currency exchange unrealized gains in 2006 than in 2007.

      Investment Returns—Year Ended December 31, 2006 versus Year Ended December 31, 2005

              White Mountains' total pre-tax investment result was a gain of $822 million, a return of 8.4% for 2006 compared to a gain of $329$318 million, a return of 3.3% for 2005. White Mountains’Mountains' total fixed maturity portfolio returned 6.0% during 2006 versus 3.0% during 2005. The higher return in 2006 was primarily due to a more favorable interest rate environment, where the rate of increase in interest rates during 2006 was lower than during 2005. In addition, the weakening of the U.S. dollar during 2006 reversed a trend from 2005 and produced unrealized currency exchange


      gains of $112 million in White Mountains’Mountains' foreign denominated fixed maturity securities portfolio. White Mountains’Mountains' total equity portfolio returned 20.4%20.2% during 2006 versus 4.7% during 2005. The equity return in 2005 was adversely impacted by 12.1 points due to the decline in the Montpelier Re investment.

      Net investment income of $436 million during 2006 decreased 11% from $492 million during 2005, principally due to the receipt of a $74 million special dividend on the Montpelier Re investmentcommon share and warrant investments during 2005. Net realized investment gains of $273 million during 2006 increased by 142% from $113 million during 2005, primarily due to a $170 million increase in realized gains from the Montpelier Re common share and warrant investment (a $5 million realized gain in 2006 period versus a $165 million realized loss in 2005)2005, which included a $55 million other-than-temporary impairment charge). Net unrealized gains on investments of $120$114 million during 2006 improved from net unrealized losses of $275$286 million during 2005, primarily due to the effect of interest rate movements and foreign currency fluctuations, as described above. In addition, 2005 included a $65 million pre-tax unrealized loss from the Montpelier Re common share investment.


      Investment Returns -Year Ended December 31, 2005 versus Year Ended December 31, 2004

      White Mountains’ total pre-tax investment result was $329 million, a return of 3.3% for 2005 versus $698 million, a return of 7.4%, for 2004. White Mountains’ total fixed maturity portfolio returned 3.0% during 2005 versus 4.1% during 2004. The lower return in 2005 was primarily due to a less favorable interest rate environment, where the rate of increase in interest rates during 2005 was much larger than during 2004. In addition, the strengthening of the U.S. dollar during 2005 reversed a trend from 2004 and produced unrealized currency exchange losses in White Mountains’ foreign denominated fixed maturity securities portfolio. White Mountains’ total equity portfolio returned 4.7% during 2005 versus 31.8% during 2004. The equity return in 2005 was adversely impacted by 12.1 percentage points due to the decline in the Montpelier Re investment, while the equity return in 2004 was favorably impacted by 7.4 percentage points due to gains in the Montpelier Re investment.

      Net investment income of $492 million during 2005 increased 36% from $361 million during 2004, principally due to the receipt of a $74 million special dividend on the Montpelier Re investment during 2005. Net realized investment gains of $113 million during 2005 decreased by 38% from $181 million during 2004, primarily due to a $165 million realized loss from the Montpelier Re investment, partially offset by realized gains generated by reducing our positions in certain highly appreciated securities. Net unrealized losses on investments of $275 million during 2005 deteriorated from net unrealized gains of $156 million during 2004, primarily due to the effect of interest rate movements and foreign currency fluctuations, as described above. In addition, 2005 included a $65 million pre-tax unrealized loss from the Montpelier Re common share investment.

      Portfolio composition

      The following table presents the composition of White Mountains’Mountains' investment portfolio as of December 31, 20062007 and 2005:2006:

       

      As of
      December 31 2006,

       

      As of
      December 31, 2005

       


       As of December 31, 2007
       As of December 31, 2006
       

      Millions

       

      $ in millions

       

      % of total

       

      $ in millions

       

      % of total

       

      $ in millions

      $ in millions

       Carrying value
       % of total
       Carrying value
       % of total
       

      Fixed maturity investments

       

      $

      7,911.5

       

      69.8

      %

      $

      7,582.7

       

      76.9

      %

      Fixed maturity investments $7,371.5 63.3%$7,475.3 66.0%
      Common equity securitiesCommon equity securities 1,550.7 13.3 1,212.6 10.7 

      Short-term investments

       

      1,344.9

       

      11.9

       

      727.8

       

      7.4

       

      Short-term investments 1,327.3 11.4 1,344.9 11.9 

      Common equity securities

       

      1,212.6

       

      10.7

       

      967.8

       

      9.8

       

      Other investments

       

      524.8

       

      4.6

       

      588.1

       

      5.9

       

      Other investments 603.3 5.2 524.8 4.6 
      Convertible fixed maturity investmentsConvertible fixed maturity investments 490.6 4.2 436.2 3.8 

      Trust account investments

       

      338.9

       

      3.0

       

       

       

      Trust account investments 305.6 2.6 338.9 3.0 

      Total investments

       

      $

      11,332.7

       

      100.0

      %

      $

      9,866.4

       

      100.0

      %

       
       
       
       
       
      Total investments $11,649.0 100.0%$11,332.7 100.0%
       
       
       
       
       

              

      The breakdown of White Mountains’Mountains' fixed maturity investments, including trust account investments, at December 31, 20062007 by credit class, based upon issue credit ratings provided by Standard and Poor’s,& Poor's, or if unrated by Standard and Poor’s,& Poor's, long term obligation ratings provided by Moody’s,Moody's, is as follows:

       

      As of December 31 2006,

       


       As of December 31, 2007
       

      Millions

       

      Amortized cost

       

      % of total

       

      $ in millions

      $ in millions

       Amortized cost
       % of total
       

      U.S. government and government-sponsored entities

       

      $

      2,406.5

       

      29.6

      %

      U.S. government and government-sponsored entities $3,419.6 45.6%

      AAA/Aaa

       

      3,000.2

       

      37.0

       

      AAA/Aaa 1,900.1 25.3 

      AA/Aa

       

      261.5

       

      3.2

       

      AA/Aa 133.2 1.8 

      A/A

       

      1,080.6

       

      13.3

       

      A/A 845.0 11.3 

      BBB/Baa

       

      1,141.7

       

      14.1

       

      BBB/Baa 986.5 13.2 

      Other/not rated

       

      227.4

       

      2.8

       

      Other/not rated 214.2 2.8 

      Total fixed maturity investments

       

      $

      8,117.9

       

      100.0

      %

       
       
       
      Total fixed maturity investments $7,498.6 100.0%
       
       
       

              

      The weighted average duration of White Mountains’Mountains' fixed maturity portfolio, excluding short-term investments, at December 31, 20062007 was three3.0 years. The cost or amortized cost and carrying value of White Mountains’Mountains' fixed maturity available-for-saleand convertible fixed maturity investments at December 31, 20062007 is presented below by contractual maturity. Actual maturities could differ from contractual maturities because borrowers may have the right to call or prepay certain obligations with or without call or prepayment penalties.


       
       December 31, 2007
      Millions

       Cost or
      amortized cost

       Estimated
      fair value

      Due in one year or less $933.1 $972.3
      Due after one year through five years  2,951.2  3,056.5
      Due after five years through ten years  487.0  504.1
      Due after ten years  575.8  563.7
      Asset-backed securities  2,882.6  2,898.6
      Preferred stocks  159.5  173.8
        
       
      Total $7,989.2 $8,169.0
        
       

       

       

      December 31, 2006

       

      Millions

       

      Cost or
      amortized cost

       

      Carrying
      value

       

      Due in one year or less

       

      $

      445.7

       

      $

      462.5

       

      Due after one year through five years

       

      3,058.3

       

      3,101.4

       

      Due after five years through ten years

       

      1,135.7

       

      1,139.6

       

      Due after ten years

       

      467.6

       

      471.2

       

      Asset-backed securities

       

      2,899.1

       

      2,904.7

       

      Preferred stocks

       

      111.5

       

      136.1

       

      Total

       

      $

      8,117.9

       

      $

      8,215.5

       

      Mortgage-backed, Asset-backed Securities

      Montpelier Re investment

      After-tax changes in        White Mountains’ book valueMountains purchases commercial and residential mortgage-backed securities to maximize its fixed income portfolio's risk adjusted returns and diversify the portfolio risk from its investment in Montpelier Re for the years endedprimarily corporate credit risk to a mix of credit and cash flow risk. White Mountains is not an originator of residential mortgage loans and does not hold any residential mortgage-backed securities categorized as sub-prime as of December 31, 2006, 20052007. In addition, White Mountains' investments in hedge funds, limited partnerships and 2004 were as follows:

       

       

      Year Ended December 31,

       

      Millions

       

      2006

       

      2005

       

      2004

       

      Net investment income, pre-tax

       

      $

      3.6

       

      $

      89.7

       

      $

      18.3

       

      Net realized investment gains (losses), pre-tax

       

      4.8

       

      (165.1

      )

      51.5

       

      Total revenues (losses), pre-tax

       

      8.4

       

      (75.4

      )

      69.8

       

      Tax benefit (expense) on total revenues

       

      1.3

       

      13.5

       

      (17.9

      )

      Total revenues (losses), after-tax

       

      9.7

       

      (61.9

      )

      51.9

       

      Change in net unrealized investment gains (losses), after-tax

       

      .1

       

      (42.3

      )

      36.0

       

      Equity in earnings of Montpelier, after-tax

       

       

       

      11.0

       

      Net after-tax change in White Mountains book value from Montpelier investment

       

      $

      9.8

       

      $

      (104.2

      )

      $

      98.9

       

      During 2005, White Mountains recognized $104 millionprivate equities contain negligible amounts of after-tax losses, net of dividends received, on its investment in Montpelier Re. Montpelier Re’s common share price decreased from $38.45sub-prime mortgage-backed securities at December 31, 2004 to $18.90 at December31, 2005, resulting in a $110 million pre-tax realized investment loss on White Mountains’ Montpelier Re warrant investment. In addition,2007. White Mountains recorded a $55is not directly exposed to potential losses on sub-prime mortgage-backed securities, other than approximately $11 million pre-tax other-than-temporary impairment charge (reported as a realized investment loss) and a $42 million after-tax unrealized investment loss onof sub-prime mortgage-backed securities that are in the collateral account under its Montpelier Re common share investment during 2005. White Mountains’ original cost of its Montpelier common share investment was $106 million, which was subsequently increased by $65 million in equity in earnings recorded by White Mountains from 2001 to 2004, the period in which it accounted for the investment under the equity method of accounting. The impairment charge represented the difference between White Mountains’ GAAP cost of $171 million and the investment’s fair value of $116 millionsecurities lending program at December 31, 2005.

      During 2006,2007. SeeNote 1—Summary of Significant Accounting Policies,Securities Lending in the accompanying financial statements for a description of White Mountains' securities lending program. White Mountains recorded $4 million in pre-tax dividendsconsiders sub-prime mortgage-backed securities to be those that are issued from Montpelier Re in net investment income. During 2005, Montpelier Re declared a special dividend of $5.50 per share, payable to holders of both its common shares and warrants to acquire its common shares.dedicated sub-prime shelves, dedicated second-lien shelves (i.e., White Mountains recorded pre-tax dividend incomeconsiders investments backed primarily by second-liens to be a sub-prime risk regardless of $74 million in 2005 for this special dividend, in addition to $16 million in dividend income from Montpelier’s normal quarterly dividends.credit score or other metrics) or otherwise have underlying loan pools that exhibit weak credit characteristics.

              There are also mortgage-backed securities that White Mountains soldcategorizes as "non-prime" (also called "Alt A" or "A-") that are backed by collateral that has overall credit quality between prime and sub-prime, based on a portionreview of its investment in Montpelier Re common shares during 2004 resulting in a $35the characteristics of their underlying mortgage loan pools, such as credit scores and financial ratios. As of December 31, 2007, $149 million pre-tax realized gain and,of White Mountains' mortgage-backed securities holdings were classified as a result, changednon-prime. All of these non-prime securities continue to have the method of accounting for its remaining Montpelier common shares to the fair value method, resulting in a $33 million increase in after-tax unrealized gains in the first quarter of 2004. During 2006,highest rating ascribed by Moody's ("Aaa") or Standard & Poors ("AAA"). White Mountains sold an additional 5.4 million sharesdoes not own any collateralized debt obligations, including residential mortgage-backed collateralized debt obligations.

              The following table summarizes White Mountains' mortgage-backed and asset-backed securities holdings as of its common share investment in Montpelier Re and realized a pre-tax gain of $5.5 million on the sale.

      At December 31, 20062007 and 2005, White Mountains’ investment in Montpelier Re warrants2006:

       
       December 31,
      Millions

       2007
       2006
      Mortgage-backed securities:      
       Agency(1) $1,019.2 $469.4
       Non-agency  1,438.9  1,819.9
        
       
      Total mortgage-backed securities  2,458.1  2,289.3
        
       
      Asset-backed securities:      
       Credit card  428.9  604.2
       Auto  8.4  59.0
       Other  3.2  9.1
        
       
      Total asset-backed securities  440.5  672.3
        
       
      Total mortgage-backed and asset-backed securities $2,898.6 $2,961.6
        
       

          (1)
          Represents publicly traded residential mortgage-backed securities which carry the full faith and common stock totaled $67 million and $167 million, respectively.

          credit guaranty of the U.S. government (i.e., GNMA) or are guaranteed by a government sponsored entity (e.g., FNMA, FHLMC).

        Impairment

        SeeNote 5 - “Investments” 5—"Investments"of the accompanying consolidated financial statements for White MountainsMountains' analysis of impairment losses on investment securities.


        NON-GAAP FINANCIAL MEASURES

        This report includes threefive non-GAAP financial measures that have been reconciled to their most comparable GAAP financial measures. White Mountains believes these measures to be more relevant than comparable GAAP measures in evaluating White Mountains’Mountains' results of operations and financial performance and capital position.condition.

        Adjusted comprehensive net income is a non-GAAP financial measure that excludes the change in net unrealized gains and losses from Symetra’sSymetra's fixed maturity portfolio from comprehensive net income. In the calculation of comprehensive net income under GAAP, fixed maturity investments are marked-to-market while the liabilities to which those assets are matched are not. Symetra attempts to earn a “spread”"spread" between what it earns on its investments and what it pays out on its products. In order to try to fix this spread, Symetra invests in a manner that tries to match the duration and cash flows of its investments with the required cash outflows associated with its life insurance and structured settlements products. As a result, Symetra typically earns the same spread on in-force business whether interest rates fall or rise. Further, at any given time, some of Symetra’sSymetra's structured settlement obligations may extend 40 or 50 years into the future, which is further out than the longest maturing fixed maturity investments regularly available for purchase in the market (typically 30 years). For these long-dated products, Symetra is unable to fully match the obligation with assets until the remaining expected payout schedule comes within the duration of securities available in the market. If at that time, these fixed maturity investments have yields that are lower than the yields expected when the structured settlement product was originally priced, the spread for the product will shrink and Symetra will ultimately harvest lower returns for its shareholders. GAAP comprehensive net income increases when rates decline, which would suggest an increase in the value of Symetra - Symetra—the opposite of what is happening to the intrinsic value of the business. Therefore, White Mountains’Mountains' management and Board of Directors use adjusted comprehensive net income when assessing Symetra’sSymetra's quarterly financial performance. In addition, this measure is typically the predominant component of growth in fully converteddiluted tangible book value per share, which is used in calculation of White Mountains’Mountains' performance for both short-term (annual bonus) and long-term incentive plans. The reconciliation of adjusted comprehensive net income to comprehensive net income is included on page 45.48.

        Book value per share is derived by dividing the Company’sCompany's total GAAP shareholders’shareholders' equity as of a given date by the number of common shares outstanding as of that date, including the dilutive effects of outstanding Optionsoptions and warrants to acquire common shares, as well as the unamortized accretion of preferred stock. Fully converteddiluted tangible book value per common and equivalent share is a non-GAAP measure which is derived by expanding the GAAP book value per share calculation to include the effects of assumed conversion of all in-the-money convertible securities and to exclude any unamortized goodwill and net unrealized gains from Symetra’sSymetra's fixed maturity portfolio. In addition, for periods subsequent to December 31, 2006, the number of common shares outstanding used in the calculation of fully diluted tangible book value per share are adjusted to exclude unearned shares of restricted stock representative of the proportion of unamortized compensation cost at the date of the calculation to the value of the restricted stock on the date of issuance. This adjustment was not made to fully diluted tangible book value per share for periods prior to December 31, 2006 as the impact was not significant. The reconciliation of fully converteddiluted tangible book value per common and equivalent share to book value per share is included on page 44.47.

        Total capital at White Mountains is comprised of common shareholders’shareholders' equity, debt and minority interest in OneBeacon Ltd., debt and, through December31, 2005, preferred stock subject to mandatory redemption. As a result of the OneBeacon Offering, the preferred stock was economically defeased and, therefore, was not included in total capital as of December 31, 2006. Tangible capital is a non-GAAP measure which excludes from total capital the unamortized goodwill of consolidated limited partnerships and the equity in net unrealized gains from Symetra’sSymetra's fixed maturity portfolio. The reconciliation of total capital to total tangible capital is included on page 62.68.

                Adjusted book value per common share at OneBeacon is a non-GAAP financial measure which is derived by excluding the impact of economically defeasing OneBeacon's mandatorily redeemable preferred stock from book value per common share, the most closely comparable GAAP measure. Management believes that adjusted book value per common share is a useful supplement to understanding the OneBeacon's earnings and profitability. A reconciliation of OneBeacon's book value per common share to OneBeacon's adjusted book value per common share is included on page 50.


                During 2005 and 2007, OneBeacon reallocated loss and LAE reserves from specialty, commercial and personal lines to run-off, which reduced specialty, commercial and personal lines' GAAP loss and LAE ratios and GAAP combined ratios, but had no impact on OneBeacon's total GAAP combined ratio. OneBeacon's specialty, commercial and personal lines' loss and LAE ratios and combined ratios prior to reserve reallocation are non-GAAP financial measures that are derived by excluding the impact of the reserve reallocation from specialty, commercial and personal lines' loss and LAE ratios and combined ratios. OneBeacon believes that a presentation excluding the effect of the reserve reallocation on specialty, commercial and personal lines' loss and LAE ratios and GAAP combined ratios is meaningful for investors to understand the performance of its underwriting units during 2005 and 2007. The reconciliation of these non-GAAP financial measures to the GAAP loss and LAE ratios and GAAP combined ratios is included on page 51.

        LIQUIDITY AND CAPITAL RESOURCES

        Operating cash and short-term investments

        Holding company level.The primary sources of cash for the Company and certain of its intermediate holding companies are dividends and tax sharing payments received from its insurance and reinsurance operating subsidiaries, financingcapital raising activities, and net investment income and proceeds from sales and maturities of holding company investments. The primary uses of cash are interestrepurchases of the Company's common shares, payments on its debt obligations, dividend payments on the Company’sCompany's common shares, and on minority interest holders of OneBeacon Ltd.’s's common shares, purchasesthe Berkshire Preferred Stock and to holders of the WMRe Preference Shares, purchases of investments, payments made to tax authorities and holding company operating expenses.

        Operating subsidiary level.The primary sources of cash for White Mountains’Mountains' insurance and reinsurance operating subsidiaries are premium collections, net investment income, capital raising activities and proceeds from sales and maturities of investments. The primary uses of cash are claim payments, policy acquisition costs, operating expenses, the purchasepurchases of investments, payments on its debt obligations and dividend and tax sharing payments made to holding companies.


        Both internal and external forces influence White Mountains’Mountains' financial condition, results of operations and cash flows. Claim settlements, premium levels and investment returns may be impacted by changing rates of inflation and other economic conditions. In many cases, significant periods of time, ranging up to several years or more, may lapse between the occurrence of an insured loss, the reporting of the loss to White Mountains and the settlement of the liability for that loss. The exact timing of the payment of claims and benefits cannot be predicted with certainty. White Mountains’Mountains' insurance and reinsurance operating subsidiaries maintain portfolios of invested assets with varying maturities and a substantial amount of short-term investments to provide adequate liquidity for the payment of claims.

        Management believes that White Mountains’Mountains' cash balances, cash flows from operations, routine sales of investments and the liquidity provided by the WTM Bank Facility and the FACFund American Bank Facility are adequate to meet expected cash requirements for the foreseeable future on both a holding company and insurance and reinsurance operating subsidiary level.

        Dividend Capacity

        Under the insurance laws of the states and jurisdictions under which White Mountains’Mountains' insurance and reinsurance operating subsidiaries are domiciled, an insurer is restricted with respect to the timing or the amount of dividends it may pay without prior approval by regulatory authorities. Accordingly, there can be no assurance regarding the amount of such dividends that may be paid by such subsidiaries in the future. Following is a description of the abilitydividend activities of White Mountains’Mountains' insurance and reinsurance operating subsidiaries to pay dividends to the Company and certain of its intermediate holding companies:

          OneBeacon:

        OneBeacon:

        Subsequent to the OneBeacon Offering, the Company and its intermediate holding companies expect to receive regular dividends from OneBeacon Ltd. The board of OneBeacon Ltd. has authorized quarterly dividend payments of $0.21 per share, commencing in the first quarter of 2007.

        Generally, OneBeacon’sOneBeacon's regulated insurance operating subsidiaries have the ability to pay dividends during any 12-month period without the prior approval of regulatory authorities in an amount equal to the greater of prior year statutory net income or 10% of prior year end statutory surplus, subject to the availability of unassigned funds. As a result, based on 20062007 statutory net income, OneBeacon’sOneBeacon's top tier regulated insurance operating subsidiaries have the ability to pay approximately $234$346 million of dividends during 20072008 without prior approval of regulatory authorities, subject to the availability of unassigned funds. As of December 31, 2006, OneBeacon’s2007, OneBeacon's top tier regulated insurance operating subsidiaries had $1.6$1.5 billion of unassigned funds.


        In addition, as of December 31, 2006,2007, OneBeacon had approximately $31$380 million of net unrestricted cash, and fixed maturity and equity investments outside of its regulated insurance operating subsidiaries and OneBeacon Ltd. and its intermediate holding companies had an additional $66 million of unrestricted cash and fixed maturity investments at its intermediate holding companies.subsidiaries. During 2006,2007, OneBeacon paid $90$394 million of dividends to Fund American and OneBeacon Ltd. paid $12$84 million of dividends to its immediate parent.common shareholders, $60 million of which was paid to an intermediate holding company of White Mountains.

                Fund American's ability to declare or pay dividends is limited by the terms of the Berkshire Preferred Stock. Fund American may not, under certain circumstances, declare or pay any dividend or distribution without the consent of the holders of the Berkshire Preferred Stock. In addition, White Mountains Reand Fund American entered into or amended certain agreements with respect to the Berkshire Preferred Stock to effect a corporate reorganization in 2004 (see:Keep-Well below).

                On January 31, 2008, OneBeacon Ltd. declared a $200 million special dividend, of which White Mountains will receive a portion based on its ownership percentage on March 17, 2008 (the dividend record date). As of December 31, 2007, White Mountains owned 72.9% of OneBeacon Ltd.'s outstanding shares.

          White Mountains Re:

        Folksamerica Re has the ability to pay dividends during any 12-month period without the prior approval of regulatory authorities in an amount equal to the lesser of net investment income, as defined by statute, or 10% of statutory surplus, in both cases as most recently reported to regulatory authorities, subject to the availability of earned surplus. Based upon December 31, 20062007 statutory surplus of $1,153$927 million, Folksamerica Re would have the ability to pay approximately $115$93 million of dividends during 20072008 without prior approval of regulatory authorities, subject to the availability of earned surplus. As of December 31, 2006,2007, Folksamerica Re had $1$69 million of earned surplus.

        In addition, as of December 31, 2006, Folksamerica had approximately $31 million of unrestricted cash and fixed maturity investments outside of its regulated insurance operating subsidiaries. During 2006, Folksamerica Re paid $5 million in dividends to its immediate parent.

        Sirius International has the ability to pay dividends subject to the availability of unrestricted statutory surplus. Historically, Sirius International has allocated the majority of its earnings to the Safety Reserve (see "Safety Reserve” Reserve" below). As a result, as of December31, 2006,December 31, 2007, Sirius International had no$52 million of unrestricted statutory surplus.surplus, which is available for distribution in 2008. Based on its 2007 results, Sirius International would have the ability to declare and pay additional dividends (on top of the $52 million noted above) of up to $60 million in 2008 without regulatory approval, if it elects not to allocate its related pre-tax earnings to the Safety Reserve.

        In accordance with the provisions of Swedish law, Sirius International can voluntarily transfer its pre-tax income, or a portion thereof, subject to certain limitations, to its parent company to minimize taxes. In early 2007,2008, Sirius International willintends to transfer approximately $35aproximately $33 million of its 20062007 pre-tax income to its Swedish parent company.company as a group contribution.

                During 2007, White Mountains Re increased the capital of WMRe (Bermuda), as Sirius International first contributed $136 million to WMRe (Bermuda), and then White Mountains Re extracted WMRe (Bermuda) from Sirius International and contributed the net proceeds of its May 2007 Preference Share issuance, or approximately $246 million, to WMRe (Bermuda). Additionally, during the fourth quarter of 2007, Folksamerica redeemed $285 million of its common shares, after receiving approval from the Insurance Department of the State of New York. $250 million of these proceeds were used to further capitalize WMRe (Bermuda). As of December 31, 2007 WMRe (Bermuda)'s capital was $776 million.

                WMRe (Bermuda) has the ability to declare and pay dividends of up to $103 million in 2008 without regulatory approval, subject to meeting all appropriate liquidity and solvency requirements.

        WMRUS has the ability to distribute its 20072008 earnings without restriction. At December 31, 2006,2007, WMRUS had $7 $2 million of unrestricted cash. During 2006,2007, WMRUS paid $14$8 million of dividends to its immediate parent.


                White Mountains Re paid $392 million of cash dividends from the net proceeds of the WMRe Senior Notes and distributed its $54 million investment in Symetra warrants to its immediate parent during the first quarter 2007. During the remainder of 2007, White Mountains Re paid an additional $20 million of dividends to its immediate parent.

        In addition, as of December 31, 2006,2007, White Mountains Re and its intermediate holding companies had an additional $26$58 million of net unrestricted cash and fixed maturity investments outside of Folksamerica, Sirius International, WMRe (Bermuda) and WMRUS. During 2006, White Mountains Re paid $46 million of dividends to its immediate parent.

        Esurance:


          Esurance:

        Generally, Esurance’sEsurance's regulated insurance operating subsidiaries have the ability to pay dividends during any 12-month period without the prior approval of regulatory authorities in an amount equal to the lesser of prior year statutory net income or 10% of prior year end statutory surplus, subject to the availability of unassigned funds. As a result, based on December 31, 20062007 statutory surplus of $69 million, Esurance’snet income, Esurance's top tier regulated insurance operating subsidiary has the ability to pay $7$3 million of dividends during 20072008 without prior approval of regulatory authorities, subject to the availability of unassigned funds. As of December 31, 2006, Esurance’s2007, Esurance's top tier regulated insurance operating subsidiary had $21$30 million of unassigned funds.

        In addition, as of December 31, 2006,2007, Esurance had $3$.4 million of net unrestricted cash and fixed maturity investments outside of its regulated insurance operating subsidiaries. During 2006,2007, Esurance did not pay any cash dividends to its immediate parent.

        Other operations:

          Other operations:

        As of December 31, 2006,2007, White Mountains had $497$462 million of net unrestricted cash, and fixed maturity and equity investments at the Company and its intermediate holding companies included in its other operations segment.

        Safety Reserve

        In accordance with provisions of Swedish law, Sirius International is permitted to transfer up to the full amount of its pre-tax income, subject to certain limitations, into an untaxed reserve referred to as a safety reserve, which amounted to $1.3$1.4 billion at December 31, 2006.2007. Under GAAP, an amount equal to the safety reserve, net of the related deferred tax liability established at the Swedish tax rate of 28%, is classified as shareholders’shareholders' equity. Generally, this deferred tax liability is only required to be paid by Sirius International if it fails to maintain predetermined levels of premium writings and loss reserves in future years. As a result of the indefinite deferral of these taxes, Swedish regulatory authorities do not apply any taxes to the safety reserve when calculating solvency capital under Swedish insurance regulations. Accordingly, under local statutory requirements, an amount equal to the deferred tax liability on Sirius International’sInternational's safety reserve ($351398 million at December 31, 2006)2007) is included in solvency capital. Access to the safety reserve is restricted to coverage of aggregate losses and requires the approval of Swedish regulatory authorities.

        Keep-Well

        On November 30, 2004, White Mountains completed a significant corporate reorganization, through which ownership of Folksamerica was transferred to White Mountains Re from Fund American. In order to effect the reorganization, White Mountains and Fund American entered into or amended certain agreements with respect to the Berkshire Preferred Stock. Under the terms of a Keep-Well Agreement dated November 30, 2004 between White Mountains and Fund American (the “Keep-Well”"Keep-Well"), White Mountains has agreed to return to Fund American up to approximately $1.1 billion, which equals the amount of net assets transferred out of Fund American as a result of the reorganization, if some or all of that amount is required by Fund American to meet its obligations to Berkshire under the Berkshire Preferred Stock. Additionally, the Keep-Well limits the aggregate amount of distributions that White Mountains may make to its shareholders. This distribution limit, which as of December 31, 20062007 was $2.2$2.4 billion, will increase or decrease by an amount equal to White Mountains’Mountains' consolidated net income or loss over the remaining life of the agreement. The Keep-Well will expire upon the earlier of when all obligations of the Berkshire Preferred Stock, which is redeemable in May 2008, have been satisfied or when approximately $1.1 billion has been returned to Fund American.


        Insurance Float

        Insurance float is an important dynamicaspect of White Mountains’ operations that must be managed effectively. FloatMountains' insurance operations. Insurance float is money that an insurance company holds for a limited time. In an insurance operation, float arises because premiums are collected before losses are paid. This interval can extend over many years. During that time, the insurer invests the funds. When the premiums that an insurer collects do not cover the losses and expenses it eventually must pay, the result is an underwriting loss, which is considered to be the cost of insurance float. The amount and cost of insurance float for White Mountains is affected by underlying market conditions, as well as acquisitions or dispositions of insurance and reinsurance businesses.


        Although insurance float can be calculated using numbers determined under GAAP, insurance float is not a GAAP concept and, therefore, there is no comparable GAAP measure.

        One of the means by which White Mountains calculates its insurance float is by taking its net investment assets and subtracting its total tangible capital. The following table illustrates White Mountains’Mountains' consolidated insurance float position as of the past five year-ends:

         

         

        December 31,

         

        ($ in millions)

         

        2006(1)

         

        2005

         

        2004

         

        2003

         

        2002

         

        Total investments

         

        $

        11,332.7

         

        $

        9,866.4

         

        $

        10,529.5

         

        $

        8,547.5

         

        $

        8,899.4

         

        Investments held in trust

         

        (338.9

        )

         

         

         

         

         

         

        Cash

         

        159.0

         

        187.7

         

        243.1

         

        89.9

         

        121.5

         

        Investment in unconsolidated insurance affiliate(s)

         

        335.5

         

        479.7

         

        466.6

         

        515.9

         

        399.9

         

        Equity in net unrealized (gains) losses from Symetras fixed maturity portfolio

         

        4.1

         

        (24.2

        )

        (56.6

        )

         

         

        Accounts receivable on unsettled investment sales

         

        8.5

         

        21.7

         

        19.9

         

        9.1

         

        160.8

         

        Accounts payable on unsettled investment purchases

         

        (66.8

        )

        (43.4

        )

        (30.9

        )

        (371.6

        )

        (495.2

        )

        Interest-bearing funds held by ceding companies (2)

         

        268.5

         

        293.9

         

        516.9

         

        70.4

         

        50.1

         

        Interest-bearing funds held under reinsurance treaties (3)

         

        (94.5

        )

        (100.6

        )

        (105.1

        )

        (152.5

        )

        (236.2

        )

        Net investment assets

         

        $

        11,608.1

         

        $

        10,681.2

         

        $

        11,583.4

         

        $

        8,708.7

         

        $

        8,900.3

         

         

         

         

         

         

         

         

         

         

         

         

         

        Total common shareholders equity

         

        $

        4,455.3

         

        $

        3,833.2

         

        $

        3,883.9

         

        $

        2,979.2

         

        $

        2,407.9

         

        Minority interest — OneBeacon Ltd.

         

        490.7

         

         

         

         

         

         

        Debt

         

        1,106.7

         

        779.1

         

        783.3

         

        743.0

         

        793.2

         

        Preferred stock subject to mandatory redemption

         

         

        234.0

         

        211.9

         

        194.5

         

        180.9

         

        Convertible preference shares

         

         

         

         

         

        219.0

         

        Total capital

         

        $

        6,052.7

         

        $

        4,846.3

         

        $

        4,879.1

         

        $

        3,916.7

         

        $

        3,601.0

         

        Unamortized deferred credits and goodwill

         

        (32.5

        )

        (24.4

        )

        (20.0

        )

        (20.3

        )

         

        Equity in net unrealized (gains) losses from Symetras fixed maturity portfolio

         

        4.1

         

        (24.2

        )

        (56.6

        )

         

         

        Total tangible capital

         

        $

        6,024.3

         

        $

        4,797.7

         

        $

        4,802.5

         

        $

        3,896.4

         

        $

        3,601.0

         

         

         

         

         

         

         

         

         

         

         

         

         

        Insurance float

         

        $

        5,583.8

         

        $

        5,883.5

         

        $

        6,780.9

         

        $

        4,812.3

         

        $

        5,299.3

         

        Insurance float as a multiple of total tangible capital

         

        0.9

        x

        1.2

        x

        1.4

        x

        1.2

        x

        1.5

        x

        Net investment assets as a multiple of total tangible capital

         

        1.9

        x

        2.2

        x

        2.4

        x

        2.2

        x

        2.5

        x

         

         

         

         

         

         

         

         

         

         

         

         

        Insurance float as a multiple of common shareholders equity

         

        1.3

        x

        1.5

        x

        1.7

        x

        1.6

        x

        2.2

        x

        Net investment assets as a multiple of common shareholders equity

         

        2.6

        x

        2.8

        x

        3.0

        x

        2.9

        x

        3.7

                        x

         
         December 31,
         
        ($ in millions)

         
         2007
         2006
         2005
         2004
         2003
         
        Total investments $11,649.0 $11,332.7 $9,866.4 $10,529.5 $8,547.5 
        Consolidated limited partnership investments(1)  (123.0) (123.4) (90.7) (64.3)  
        Trust account assets  (305.6) (338.9)      
        Cash  171.3  159.0  187.7  243.1  89.9 
        Investments in unconsolidated affiliates  406.3  335.5  479.7  466.6  515.9 
        Equity in net unrealized (gains) losses from Symetra's fixed maturity portfolio  5.6  4.1  (24.2) (56.6)  
        Accounts receivable on unsettled investment sales  201.1  8.5  21.7  19.9  9.1 
        Accounts payable on unsettled investment purchases  (46.4) (66.8) (43.4) (30.9) (371.6)
        Interest-bearing funds held by ceding companies(2)  192.8  226.7  293.9  516.9  70.4 
        Interest-bearing funds held under reinsurance treaties(3)  (73.4) (94.5) (100.6) (105.1) (152.5)
          
         
         
         
         
         
         Net investment assets $12,077.7 $11,442.9 $10,590.5 $11,519.1 $8,708.7 
          
         
         
         
         
         
        Total common shareholders' equity $4,713.4 $4,455.3 $3,833.2 $3,883.9 $2,979.2 
        Minority interest—OneBeacon Ltd.   517.2  490.7       
        Minority interest—WMRe Preference Shares  250.0         
        Debt  1,192.9  1,106.7  779.1  783.3  743.0 
        Preferred stock subject to mandatory redemption(4)      234.0  211.9  194.5 
          
         
         
         
         
         
         Total capital $6,673.5 $6,052.7 $4,846.3 $4,879.1 $3,916.7 
          Unamortized goodwill  (30.4) (32.5) (24.4) (20.0) (20.3)
          Equity in net unrealized (gains) losses from Symetra's fixed maturity portfolio  5.6  4.1  (24.2) (56.6)  
          
         
         
         
         
         
         Total tangible capital $6,648.7 $6,024.3 $4,797.7 $4,802.5 $3,896.4 
          
         
         
         
         
         
         Insurance float $5,429.0 $5,418.6 $5,792.8 $6,716.6 $4,812.3 
          
         
         
         
         
         
        Insurance float as a multiple of total tangible capital  0.8x  0.9x  1.2x  1.4x  1.2x 
        Net investment assets as a multiple of total tangible capital  1.8x  1.9x  2.2x  2.4x  2.2x 
        Insurance float as a multiple of common shareholders' equity  1.2x  1.2x  1.5x  1.7x  1.6x 
        Net investment assets as a multiple of common shareholders' equity  2.6x  2.6x  2.8x  3.0x  2.9x 
          
         
         
         
         
         

        (1)             Excludes preferred stock subject to mandatory redemption, having an aggregate accreted liquidation preference at December 31, 2006 of $262 million, and $339 million
        The minority interest portion of investments heldof consolidated limited partnerships have not been included in two irrevocable grantor trusts forinsurance float because White Mountains does not have the purpose of economically defeasing the preferredstock subjectability to mandatory redemption. The creation and funding ofutilize these trusts did not legally defease the preferred stock and therefore the preferred stock will continue to appear on White Mountains’ balance sheet until it is redeemed.

        assets.

        (2)
        Excludes funds held by ceding companies from which White Mountains does not receive interest credits.



        (3)
        Excludes funds held by White Mountains under reinsurance treaties for which White Mountains does not provide interest credits.



        (4)
        Excludes preferred stock subject to mandatory redemption, having an aggregate accreted liquidation preference at December 31, 2007 and 2006 of $278 million and $269 million, respectively (and $306 million and $339 million of investments held in irrevocable grantor trusts for the purpose of economically defeasing the preferred stock subject to mandatory redemption). The creation and funding of these trusts did not legally defease the preferred stock and therefore the preferred stock will continue to appear on White Mountains' balance sheet until it is redeemed.

        White Mountains has historically obtained its insurance float primarily through acquisitions, as opposed to organic growth. In recent years, White Mountains has had negative cash flows from operations but has grown float from its insurance and reinsurance operations. This is due to the fact that White Mountains’ cash flow from operations does


        not reflect cash and investments generated by the acquisition of insurance and reinsurance businesses in recent years. Post-acquisition, such companies are often placed into partial or complete run-off, thereby resulting in negative cash flows from operations as the investments acquired are liquidated over time to pay claims.

        It is White Mountains’Mountains' intention to generate low-cost float over time through a combination of acquisitions and/or by organic growth in its existing insurance and reinsurance operations. However, White Mountains will seek to increase its insurance float organically only when market conditions allow for an expectation of generating an underwriting profit.profits.


        Financing

        Financing

        The following table summarizes White Mountains’Mountains' capital structure as of December 31, 2007 and 2006:

         
         December 31,
         
        ($ in millions)

         
         2007
         2006
         
        Fund American Senior Notes, carrying value $698.9 $698.7 
        WMRe Senior Notes, carrying value  398.9   
        WTM Bank Facility(1)    320.0 
        Fund American Bank Facility     
        Other debt of operating subsidiaries(2)  95.1  88.0 
          
         
         
         Total debt  1,192.9  1,106.7 

        Minority interest—OneBeacon Ltd. 

         

         

        517.2

         

         

        490.7

         
        Minority interest—WMRe Preference Shares  250.0   
        Total common shareholders' equity  4,713.4  4,455.3 
          
         
         
         Total capital(3)(4) $6,673.5 $6,052.7 
        Unamortized goodwill  (30.4) (32.5)
        Equity in net unrealized losses from Symetra's fixed maturity portfolio  5.6  4.1 
          
         
         
         Total tangible capital $6,648.7 $6,024.3 
          
         
         
        Total debt to total tangible capital  18% 18%
        Total debt and Preference Shares to total tangible capital  22% 18%
          
         
         

            (1)
            The $320.0 million outstanding on December 31, 2006 and 2005:

             

             

            December 31,

             

            ($ in millions)

             

            2006

             

            2005

             

            Senior Notes, carrying value

             

            $698.7

             

            $698.5

             

            WTM Bank Facility

             

            320.0

             

             

            Other debt of operating subsidiaries (1)

             

            88.0

             

            80.6

             

            Total debt

             

            1,106.7

             

            779.1

             

             

             

             

             

             

             

            Preferred stock subject to mandatory redemption

             

            (2)

            234.0

             

            Minority interest — OneBeacon Ltd.

             

            490.7

            (3)

             

            Total common shareholders’ equity

             

            4,455.3

             

            3,833.2

             

            Total capital

             

            $6,052.7

             

            $4,846.3

             

            Unamortized goodwill

             

            (32.5

            )

            (24.4

            )

            Equity in net unrealized losses (gains) from Symetras fixed maturity portfolio

             

            4.1

             

            (24.2

            )

            Total tangible capital

             

            $6,024.3

             

            $4,797.7

             

             

             

             

             

             

             

            Total debt to total tangible capital

             

            18

            %

            16

            %

            Total debt and preferred stock to total tangible capital

             

            18

            %

            21

            %


            was under White Mountains' previous credit facility, which was refinanced in June 2007 (See below).

            (2)
            (1)See             See Note 6 - “Debt” 6—"Debt"of the accompanying Consolidated Financial Statements for a discussion of operating subsidiary debt.



            (2)
            The minority interest arising from White Mountains' investments in consolidated limited partnerships has not been included in total capital because White Mountains does not have the ability to utilize the assets supporting this minority interest.

            (4)
            The preferred stock subject to mandatory redemption, having an aggregate accreted liquidation preference of $278 million and $262 million at December 31, 2007 and 2006, was not included in total capital at December 31, 2006 because it was economically defeased in connection with the OneBeacon Offering.

        (3)             The minority interest arising from White Mountains’ ownership in OneBeacon Ltd. has been included in White Mountains’ capitalization table because it supports debt service on the Senior Notes.

        Management believes that White Mountains’Mountains' strong financial position provides it with the flexibility and capacity to obtain funds externally as needed through debt or equity financing on both a short-term and long-term basis.

        In connection withMay 2007, WMRe Group issued $250 million non-cumulative perpetual preference shares and received $246 million of proceeds, net of $4 million of issuance costs and commissions. Holders of the OneBeacon Offering,WMRe Preference Shares receive dividends on a non-cumulative basis only when, and if declared by WMRe Group at a fixed dividend rate of 7.506% for the period from issuance until June 30, 2017 and a variable dividend rate thereafter. The WMRe Preference Shares are redeemable only at the option of WMRe Group.

                In March 2007, WMRe Group issued $400 million face value of senior unsecured debt at an issue price of 99.715%, wihich resulted in net proceeds of $392 million. The WMRe Senior Notes bear an annual interest rate of 6.375%, payable semi-annually in arrears on March 20 and September 20, until maturity in March 2017. Taking into effect the amortization of the orginal issue discount and all underwriting and issuance expenses, including an interest rate lock agreement, the WMRe Senior Notes yield an effective rate of 6.49% per annum.

                During the first quarter of 2007, White Mountains and Fund American terminated their existing $400repaid the $320 million outstanding under its revolving credit facility under which they were both permitted borrowers, and replaced it with two distinct credit facilities, as described below.

        In November 2006,using a portion of the net proceeds from the issuance of the WMRe Senior Notes. During the second quarter of 2007, White Mountains and White Mountains Re Group, Ltd, as co-borrowers and co-guarantors,establishedreplaced its existing credit facility with a $500new $475 million revolving credit facility that matures in November 2011.June 2012. This new facility removed WMRe Group as co-borrower and co-guarantor, added certain intermediate holding companies of White Mountains as co-guarantors and amended and/or removed certain financial and other covenants. As of December 31, 2006, White Mountains had $320 million outstanding on this facility, which bears interest at a current rate of 5.9%, and had accrued $2.5 million of interest expense on this borrowing during 2006.2007, the WTM Bank Facility was undrawn.

        In November 2006, Fund American, a subsidiary of OneBeacon Ltd., established a $75 million revolving credit facility that matures in November 2011. All borrowings under this facility are guaranteed by OneBeacon Ltd. As of December 31, 2006,2007, this facility was undrawn.

        In connection with its acquisition        SeeRATINGS in Item 1—Business for the current financial ratings of the Sierra Group on March 31, 2004, Folksamerica entered into a $62 million purchase note (the “Sierra Note”), $58 million of which may be adjusted over its approximate six-year term to reflect favorable or adverse loss reserve development on the acquired reserve portfolio and run-off of remaining policies in force (mainly workers compensation business) as well as certain other balance sheet protections. Since inception, the principal of the Sierra Note has been reduced by $35 million, to an outstanding balance of $27 million as of December 31, 2006, as a result of adverse development on the acquired reserves and run-off of unearned premiums.

        In connection with its purchase of an office building in Canton, Massachusetts, OneBeacon entered into a $41 million construction facility to fund renovations to the new space that currently houses its U.S. headquarters. As of December 31, 2006, OneBeacon had drawn the entire $41 million under the facility.


        Fund American’sAmerican Senior Notes, are currently rated “Baa2” (Medium Grade, the ninth highest of twenty-one ratings) with a stable outlook by Moody’s, “BBB” (Adequate,WMRe Senior Notes and the ninth highest of twenty-two ratings) with a stable outlook by Standard & Poor’s, “bbb” (Very Good, the ninth highest of twenty-two ratings) with a stable outlook by A.M. Best and “BBB” (Good, the ninth highest of twenty-three ratings) with a stable outlook by Fitch Ratings.

        WMRe Preference Shares. It is possible that, in the future, one or more of the rating agencies may lower White Mountains’Mountains' existing ratings. If one or more of its ratings were downgraded, White Mountains could incur higher borrowing costs and its ability to access the capital markets could be impacted. In addition, White Mountains’Mountains' insurance and reinsurance operating subsidiaries could be adversely impacted by a


        downgrade in their financial strength ratings, including a possible reduction in demand for their products in certain markets.

        The Fund American Senior Notes and the WMRe Senior Notes were issued under an indentureindentures which containscontain restrictive covenants that, among other things, limit the ability of the Company, Fund American, WMRe Group and their respective subsidiaries to create liens and enter into sale and leaseback transactions and limits the ability of Fund American, WMRe Group and itstheir respective subsidiaries to consolidate, merge or transfer their properties and assets. The indenture doesindentures do not contain any financial ratios or specified levels of net worth or liquidity to which the Company, or Fund American or WMRe Group must adhere. At December 31, 2006,2007, White Mountains was in compliance with all of the covenants under the Fund American Senior Notes and the WMRe Senior Notes, and anticipates it will continue to remain in compliance with these covenants for the foreseeable future.

        The WTM Bank Facility and the FACFund American Bank Facility contain various affirmative, negative and financial covenantswhich White Mountains considers to be customary for such borrowings and include maintaining certain minimum net worth and maximum debt to capitalization standards and in the case of the WTM Bank Facility minimum interest coverage standards. Failure to meet one or more of these covenants could result in an event of default, which ultimately could eliminate availability under these facilities and result in acceleration of principal repayment on any amounts outstanding. At December31, 2006,December 31, 2007, White Mountains was in compliance with all of the covenants under the WTM Bank Facility and the FACFund American Bank Facility, and anticipates it will continue to remain in compliance with these covenants for the foreseeable future.

        Contractual Obligations and Commitments

        Below is a schedule of White Mountains’Mountains' material contractual obligations and commitments as of December 31, 2006: 2007:

        Millions

         

        Due in
        One Year
        or Less

         

        Due in
        Two to Three
        Years

         

        Due in
        Four to Five
        Years

         

        Due After
        Five
        Years

         

        Total

         

        Millions

         Due in
        One Year
        or Less

         Due in
        Two to Three
        Years

         Due in
        Four to Five
        Years

         Due After
        Five
        Years

         Total

        Debt

         

        $

        2.0

         

        $

        31.9

         

        $

        325.6

         

        $

        748.5

         

        $

        1,108.0

         

        Debt $2.1 $41.8 $5.7 $1,145.5 $1,195.1

        Mandatorily redeemable preferred stock (1)

         

        20.0

         

        300.0

         

         

         

        320.0

         

        Loss and LAE reserves (2)

         

        2,921.4

         

        2,461.2

         

        1,194.7

         

        2,661.1

         

        9,238.4

         

        Reserves for structured contracts

         

        43.1

         

        60.0

         

        44.0

         

         

        147.1

         

        Mandatorily redeemable preferred stock(1)Mandatorily redeemable preferred stock(1) 300.0    300.0
        Loss and LAE reserves(2)Loss and LAE reserves(2) 2,446.4 2,198.2 1,135.1 2,521.0 8,300.7

        Interest on debt and dividends on preferred stock subject to mandatory redemption

         

        71.3

         

        98.2

         

        88.1

         

        93.4

         

        351.0

         

        Interest on debt and dividends on preferred stock subject to mandatory redemption 93.5 181.5 176.3 248.8 700.1

        Long-term incentive compensation

         

        88.0

         

        161.7

         

        30.5

         

        41.0

         

        321.2

         

        Long-term incentive compensation 104.6 173.2 36.3 21.8 335.9

        Pension and other benefit plan obligations

         

        19.7

         

        2.8

         

        3.5

         

        12.7

         

        38.7

         

        Pension and other benefit plan obligations 26.4 9.1 9.3 22.0 66.8

        Operating leases

         

        43.1

         

        58.9

         

        25.5

         

        21.3

         

        148.8

         

        Operating leases 31.8 45.1 30.9 18.5 126.3

         

         

         

         

         

         

         

         

         

         

         

         
         
         
         
         

        Total contractual obligations

         

        $

        3,208.6

         

        $

        3,174.7

         

        $

        1,711.9

         

        $

        3,578.0

         

        $

        11,673.2

         

        Total contractual obligations $3,004.8 $2,648.9 $1,393.6 $3,977.6 $11,024.9
         
         
         
         
         

        (1)
        Economically defeased in connection with the OneBeacon Offering.



        (2)
        Represents expected future cash outflows resulting from loss and LAE payments. Accordingly, these balances add back the discount on OneBeacon’s workers compensation loss and LAE reserves of $191 million and the remaining purchase accounting fair value adjustment of $271 million related to the OneBeacon acquisition as they are non-cash items. Further, theThe amounts presented are gross of reinsurance recoverables on unpaid losses of $4,016$3,468 million and include the discount on OneBeacon's workers compensation loss and LAE reserves of $157 million as of December 31, 2006.

        2007. These balances add back the remaining purchase accounting fair value adjustment of $239 million related to the OneBeacon Acquisition as it is a non-cash item.

        White Mountains’Mountains' loss reserves do not have contractual maturity dates. However, based on historical payment patterns, the preceding table includes an estimate of when management expects White Mountains’Mountains' loss reserves to be paid. The timing of claim payments is subject to significant uncertainty. White Mountains maintains a portfolio of marketable investments with varying maturities and a substantial amount of short-term investments to provide adequate cash flows for the payment of claims.


                The WMRe Preference Shares are not included in the table above as these perpetual preferred shares have no stated maturity date and are redeemable only at the option of WMRe Group. SeeItem 1.—Business—WHITE MOUNTAINS RE—Recent Financing Activities for more details.

        The balances included in the table above regarding White Mountains’Mountains' long-term incentive compensation plans include amounts payable for performance shares and units, as well as deferred compensation balances. Exact amounts to be paid for performance shares cannot be predicted for performance shares, with certainty, as the ultimate amounts of these liabilities are based on the future performance of the Company and the market price of the Company’sCompany's common shares at the time the payments are made. The estimated payments reflected in the table are based on current accrual factors (common share price and pay-out percentage) and assume that all outstanding balances were 100% vested as of December 31, 2006.2007.


        There are no provisions within White Mountains’Mountains' leasing agreements that would trigger acceleration of future lease payments. White Mountains does not finance its operations through the securitization of its trade receivables, through special purpose entities or through synthetic leases. Further, except as noted in the following paragraph, White Mountains has not entered into any material arrangement requiring it to guarantee payment of third party debt, lease payments or to fund losses of an unconsolidated special purpose entity.

        Through Sirius International, White Mountains has a long-term investment as a stockholder in LUC Holdings, an entity that has entered into a head lease to rent the London Underwriting Center (“LUC”("LUC") through 2016. LUC Holdings in turn subleases space in the LUC. In the LUC Holdings stockholders agreement, the stockholders have guaranteed any shortfall between the head lease and the sub-leases on a joint and several basis. As a consequence, in recent years the stockholders have funded an operating shortfall of LUC. At December 31, 2006,2007, White Mountains has recorded a liability of $9$8 million for its share of the expected future shortfall between LUC Holdings’Holdings' head lease payments and sub-lease receipts. White Mountains does not believe that future shortfalls, if any, will have a material impact on its results of operations.

        White Mountains also has future binding commitments to fund certain limited partnership investments. These commitments, which total approximately $109$144 million, do not have fixed funding dates and are therefore excluded from the table above.

        Share Repurchase Programs

          White Mountains:

                On November 17, 2006, White Mountains' board of directors authorized the Company to repurchase up to 1 million of its common shares, from time to time, subject to market conditions. Shares may be repurchased on the open market or through privately negotiated transactions.The repurchase authorization does not obligate White Mountains to acquire any specific number of shares. As of December 31, 2007, 290,841 common shares had been repurchased for $145 million and retired.

          OneBeacon Ltd.:

                On August 22, 2007, OneBeacon Ltd.'s board of directors authorized OneBeacon Ltd. to repurchase up to $200.0 million of its Class A common shares from time to time, subject to market conditions. Shares may be repurchased on the open market or through privately negotiated transactions. This program does not have a stated expiration date. As of December 31, 2007, 1.6 million Class A common shares had been repurchased for $33.0 million and retired.

        Cash Flows

        Detailed information concerning White Mountains’ liquidityMountains' cash flows during 2007, 2006 and capital resource activities2005 follows:

        For the year ended December 31, 2007

          Financing and Other Capital Activities

                In May 2007, White Mountains Re received net proceeds of $246 million through the issuance of the WMRe Preference Shares. White Mountains Re declared and paid $11 million in cash dividends on these shares in 2007.

                In March 2007, White Mountains Re received net proceeds of $392 million through the issuance of the WMRe Senior Notes and subsequently paid a cash dividend of $392 million to its immediate parent. White Mountains used a portion of these proceeds to repay its $320 million outstanding balance on its existing bank facility.

                During 2007, the Company declared and paid cash dividends of $86 million to its common shareholders.

                During 2007, the Company repurchased and retired 290,841 of its common shares for $145 million as part of its previously announced share repurchase plan.

                During 2007, OneBeacon Ltd. declared and paid cash dividends of $84 million to its common shareholders, $60 million of which was received by an intermediate holding company of White Mountains. On June 30, 2007, OneBeacon repaid $20 million of its mandatorily redeemable preferred stock using funds that were held in trust for the purpose of economically defeasing the preferred stock. OneBeacon also paid $29 million in dividends on its mandatorily redeemable preferred stock during 2006, 20052007, also using funds that were held in trust.


                During 2007, OneBeacon Ltd. repurchased and 2004 follows:retired 1.6 million of its common shares for $33 million as part of its previously announced share repurchase plan.

                During 2007, OneBeacon declared and paid dividends of $394 million to Fund American. Also during 2007, White Mountains Re paid $20 million of dividends to its immediate parent in addition to the $392 million from the WMRe Senior Notes proceeds.

                During 2007, White Mountains paid $41 million in interest under the Fund American Senior Notes and $20 million under the WMRe Senior Notes.

                During 2007, White Mountains received cash dividends from Symetra of $31 million on its common share investment and $17 million on its warrant investment.

                During 2007, Sirius International contributed $136 million to WMRe (Bermuda). In addition, White Mountains Re contributed the $246 million net proceeds from the WMRe Preference Share issuance and $250 million of the $285 million redemption of Folksamerica common shares to further capitalize WMRe (Bermuda).

                During 2007, White Mountains contributed $125 million in cash to Esurance and contributed $18 million and $15 million in cash and investments to Galileo and WM Life Re, respectively.

                In April 2007, White Mountains invested $50 million in Pentelia, a fund that invests in insurance-related investment assets.

          Acquisitions and Dispositions

                During 2007, OneBeacon sold one of its inactive licensed subsidiaries, American Employers' Insurance Company, to a third party for $48 million in cash.

                During 2007, White Mountains Re sold its' wholly-owned subsidiary Stockbridge Insurance Company for $26 million in cash to an external party.

                During 2007, White Mountains sold 645,262 shares of OneBeacon Ltd. to OneBeacon's employee stock ownership plan for proceeds of $17 million.

                On May 1, 2007, White Mountains sold all of its remaining interest in Montpelier Re, which consisted of 939,039 common shares and warrants to purchase 7,172,376 common shares, for total proceeds of $65 million.

          Other Liquidity and Capital Resource Activities

                During 2007, the Company issued a total of 11,550 common shares to its employees through the exercise of Options during the period and received cash proceeds of $2 million in connection with these Option exercises. The Company also accepted 4,465 common shares from an employee in satisfaction of a $3 million employee withholding tax liability associated with the vesting of Restricted Shares.

                During 2007, White Mountains made payments totaling $56 million, in cash or by deferral into certain non-qualified compensation plans of the Company or its subsidiaries, to participants in its long-term incentive compensation plans. These payments were made with respect to 63,300 target performance shares at payout levels ranging from 145% to 186% of target.

        For the year ended December 31, 2006

          Financing and Other Capital Activities

        During 2006, White Mountains declared and paid cash dividends of $86 million, $28 million and $2 million to holders of White Mountains' common shares, the Berkshire Preferred Stock and the Zenith Preferred Stock, respectively.

        During 2006, OneBeacon Ltd. declared and paid a $12 million cash dividend to its immediate parent and OneBeacon paid $90 million of dividends to Fund American..American. Also during 2006, White Mountains Re paid $46 million of dividends to its immediate parent.

        During 2006, the Company, through various intermediate holding companies, contributed $100 million in cash and investments to White Mountains Re and $125 million in cash to Esurance.

        During 2006, Fund American funded a trust account with $324 million of cash and investments to economically defease the Berkshire Preferred Stock and FAEH funded a trust account with $21 million of cash to economically defease the Zenith Preferred Stock.

        During 2006, White Mountains paid a total of $41 million in interest under the Fund American Senior Notes.


        During 2006, White Mountains borrowed and repaid $140 million under its previous credit facility and borrowed $320 million under its new WTM Bank Facility. In addition, OneBeacon drew an additional $22 million under its existing real estate construction loan.

        During 2006, OneBeacon and Folksamerica Holdings repaid $8 million and $7 million, respectively, of loans to Dowling and Partners Connecticut Fund III LP.

        During 2006, White Mountains Re received cash dividends from Symetra of $16 million on its common share investment and $9 million on its warrant investment.

          Acquisitions and Dispositions

        On December 22, 2006, White Mountains Re acquired Mutual Service for $34 million in cash.

        On November 14, 2006, White Mountains closed on the OneBeacon Offering and received $650 million in net proceeds for the sale of 27.6% of its ownership interest in OneBeacon Ltd.


        On August 2, 2006, White Mountains Re sold one of its subsidiaries, Sirius America, to an investor group for $139 million in cash. As part of the transaction, White Mountains acquired an equity interest of approximately 18% in the acquiring entity by investing $32 million into the investor group.

        On September 29, 2006, OneBeacon transferred certain assets and the right to renew existing policies of its Agri division to QBE Insurance Group for $32 million in cash.

        Other Liquidity and Capital Resource Activities

        During the third quarter of 2006, White Mountains sold 5.4 million common shares of Montpelier Re for proceeds of $104 million in cash.

          Other Liquidity and Capital Resource Activities

        During 2006, the Company issued a total of 3,530 common shares to its employees through the exercise of Options during the period and received cash proceeds of $.6 million in connection with these Option exercises.

        During 2006, White Mountains made payments totaling $57 million, in cash or by deferral into certain non-qualified compensation plans of the Company or its subsidiaries, to participants in its long-term incentive compensation plans. These payments were made with respect to 64,100 target performance shares at payout levels ranging from 142% to 181% of target.

        For the year ended December 31, 2005

          Financing and Other Capital Activities

        During 2005, White Mountains declared and paid cash dividends of $86 million, $28 million and $2 million to holders of White Mountains' common shares, the Berkshire Preferred Stock and the Zenith Preferred Stock, respectively.

        During 2005, OneBeacon declared and paid dividends of $340 million to Fund American and White Mountains Re declared and paid $98 million of dividends to its immediate parent.

        During 2005, White Mountains contributed $250 million to White Mountains Re (which, in turn, contributed $250 million to Folksamerica) and $10 million to Esurance.

        During 2005, White Mountains paid a total of $41 million in interest under the Fund American Senior Notes.

        During 2005, OneBeacon drew down $18 million on an 18-year mortgage note that it entered into in connection with its purchase of land and a home office building.

          Acquisitions and Dispositions

        During 2005, OneBeacon sold two of its insurance subsidiaries, NFU and Traders and Pacific Insurance Company, to third parties for a total of $162 million in cash.

        During 2005, White Mountains Re sold one of its subsidiaries, California Indemnity Insurance Company, to a third party for a total of $20 million, $19 million of which was paid in cash.

        On April 29, 2005, OneBeacon purchased a 284,000 square foot office facility located in Canton, MA for $23 million.


          Other Liquidity and Capital Resource Activities

        During 2005, White Mountains received a total of $60 million in tax refunds and interest from the Internal Revenue Service related to the completion of an audit of White Mountains’Mountains' 1997-2000 tax years, the period during which the Company redomesticated to Bermuda.

        During 2005, the Company issued a total of 7,750 common shares to its employees through the exercise of Options during the period and received cash proceeds of $1 million in connection with these Option exercises.

        During the first quarter of 2005, White Mountains made payments totaling $235 million, in cash or by deferral into certain non-qualified compensation plans of the Company or its subsidiaries, to participants in its long-term incentive compensation plans. These payments were made with respect to 212,611 performance shares at payout levels ranging from 113% to 200% of target.

        During the first quarter of 2005, White Mountains received a $74 million special dividend related to its common share and warrant investment in Montpelier Re. This dividend represented $5.50 per share and was in addition to Montpelier Re’sRe's normal quarterly dividend of $.36 per share.

        66




        For the year ended December 31, 2004

        Financing and Other Capital Activities

        On June 29, 2004, Berkshire exercised of all of its warrants to purchase 1,724,200 common shares of White Mountains for $294 million. Berkshire acquired the warrants in connection with the financing of White Mountains’ acquisition of OneBeacon in 2001. The warrants were exercisable at any time until May 2008 and callable by the Company on or after May 31, 2005. In consideration for the early exercise of the warrants, Berkshire and the Company agreed to reduce the exercise price by approximately 2%.

        During 2004, White Mountains declared and paid dividends of $9 million, $28 million and $2 million to holders of White Mountains’ common shares, the Berkshire Preferred Stock and the Zenith Preferred Stock, respectively.

        During 2004, White Mountains restructured and re-syndicated the Bank Facility to extend its maturity and to increase the availability of the revolving credit facility to $400 million.

        During 2004, White Mountains paid a total of $41 million in interest under the Senior Notes.

        During 2004, OneBeacon declared and paid a total of $305 million in dividends to Fund American. Also during 2004, WMRUS paid a total of $60 million of dividends to its immediate parent. On March 31, 2004, OneBeacon distributed Folksamerica to Fund American.

        During 2004, the Company issued a net total of 3,938 common shares to its employees through the exercise of Options during the year and the Company received cash proceeds of $.5 million in connection with these Option exercises. In addition, during the first quarter of 2004, White Mountains issued 27,772 common shares to employees of OneBeacon in connection with OneBeacon’s employee stock ownership plan. OneBeacon paid $13 million to the Company in consideration for these common shares.

        On August 27, 2004, White Mountains repaid the $25 million note that was issued as part of the financing of its 2001 acquisition of C-F Insurance Company.

        Acquisitions and Dispositions

        During 2004, White Mountains acquired Sirius for $428 million, 19% of Symetra for $195 million, Tryg-Baltica for $58 million, the Sierra Group for $14 million in cash and a $62 million note and Atlantic Specialty for $30 million in cash and a $20 million note.

        During 2004, White Mountains sold Potomac for $22 million, Western States, as well as its boiler inspection service business, for $15 million (both subsidiaries of OneBeacon) and Peninsula for $23 million.

        See Note 2 - “Significant Transactions” of the accompanying Consolidated Financial Statements for further discussion of these transactions.

        Other Liquidity and Capital Resource Activities

        During the first quarter of 2004, White Mountains sold 4.5 million common shares of Montpelier Re to third parties for net proceeds of $155.3 million. Also during the first quarter of 2004, White Mountains purchased additional warrants to acquire 2.4 million common shares of Montpelier Re from an existing warrant holder for $54.1 million in cash.

        During the first quarter of 2004, White Mountains made payments amounting to $127 million, in cash or by deferral into certain non-qualified compensation plans of the Company or its subsidiaries, to participants in its long-term incentive compensation plans. These payments were made with respect to 167,782 performance shares at payout levels ranging from 93% to 200% of target.

        TRANSACTIONS WITH RELATED PERSONS

        SeeNote 17 - “Transactions20—"Transactions with Related Persons” Persons"in the accompanying Consolidated Financial Statements.


        CRITICAL ACCOUNTING ESTIMATES

        Management’s        Management's Discussion and Analysis of Financial Condition and Results of Operations discusses the Company’sCompany's consolidated financial statements, which have been prepared in accordance with GAAP. The financial statements presented herein include all adjustments considered necessary by management to fairly present the financial position, results of operations and cash flows of White Mountains. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period.

        In the current year presentation of financial information, certain amounts in the prior period financial statements have been reclassified to conform with the current presentation. White Mountains has completed numerous significant transactions during the periods presented that have affected the comparability of the financial statement information presented herein.

        On an ongoing basis, management evaluates its estimates, including those related to loss and LAE reserves, purchase accounting, reinsurance estimates and its pension benefit obligations. Management bases its estimates on historical experience and on various other factors that are believed to be reasonable under the circumstances, the results of which form the basis for making judgements about the carrying values of assets and liabilities that are not readily apparent from other sources.

        Management believes that its critical accounting policies affect its more significant estimates used in the preparation of its consolidated financial statements. The descriptions below are summarized and have been simplified for clarity.


        1. Loss and Loss Adjustment Expenses

        OneBeacon

          Reserves other than Asbestos and Environmental Reserves and Construction Defect Claim Reserves

        OneBeacon establishes loss and LAE reserves that are estimates of amounts needed to pay claims and related expenses in the future for insured events that have already occurred. The process of estimating reserves involves a considerable degree of judgment by management and, as of any given date, is inherently uncertain.

        Loss and LAE reserves are typically comprised of (1) case reserves for claims reported and (2) reserves for losses that have occurred but for which claims have not yet been reported, referred to as incurred but not reported (“IBNR”("IBNR") reserves, which include a provision for expected future development on case reserves. Case reserves are estimated based on the experience and knowledge of claims staff regarding the nature and potential cost of each claim and are adjusted as additional information becomes known or payments are made. IBNR reserves are derived by subtracting paid loss and LAE and case reserves from estimates of ultimate loss and LAE. Actuaries estimate ultimate loss and LAE using various generally accepted actuarial methods applied to known losses and other relevant information. Like case reserves, IBNR reserves are adjusted as additional information becomes known or payments are made.

        Ultimate loss and LAE are generally determined by extrapolation of claim emergence and settlement patterns observed in the past that can reasonably be expected to persist into the future. In forecasting ultimate loss and LAE with respect to any line of business, past experience with respect to that line of business is the primary resource, but cannot be relied upon in isolation. OneBeacon’sOneBeacon's own experience, particularly claims development experience, such as trends in case reserves, payments on and closings of claims, as well as changes in business mix and coverage limits, is the most important information for estimating its reserves. External data, available from organizations such as statistical bureaus, consulting firms and reinsurance companies, is sometimes used to supplement or corroborate OneBeacon’sOneBeacon's own experience, and can be especially useful for estimating costs of new business. For some lines of business, such as “long-tail”"long-tail" coverages discussed below, claims data reported in the most recent accident year is often too limited to provide a meaningful basis for analysis due to the typical delay in reporting of claims. For this type of business, OneBeacon uses a selected loss ratio method for the initial accident year or years. This is a standard and accepted actuarial reserve estimation method in these circumstances in which the loss ratio is selected based upon information used in pricing policies for that line of business, as well as any publicly available industry data, such as industry pricing, experience and trends, for that line of business.


        Uncertainties in estimating ultimate loss and LAE are magnified by the time lag between when a claim actually occurs and when it is reported and settled. This time lag is sometimes referred to as the “claim-tail”"claim-tail". The claim-tail for most property coverages is typically short (usually a few days up to a few months). The claim-tail for liability/casualty coverages, such as automobile liability, general liability, products liability, multiple peril coverage, and workers compensation, can be especially long as claims are often reported and ultimately paid or settled years, even decades, after the related loss events occur. During the long claims reporting and settlement period, additional facts regarding coverages written in prior accident years, as well as about actual claims and trends may become known and, as a result, OneBeacon may adjust its reserves. If management determines that an adjustment is appropriate, the adjustment is booked in the accounting period in which such determination is made in accordance with GAAP. Accordingly, should reserves need to be increased or decreased in the future from amounts currently established, future results of operations would be negatively or positively impacted, respectively.

        In determining ultimate loss and LAE, the cost to indemnify claimants, provide needed legal defense and other services for insureds and administer the investigation and adjustment of claims are considered. These claim costs are influenced by many factors that change overtime,over time, such as expanded coverage definitions as a result of new court decisions, inflation in costs to repair or replace damaged property, inflation in the cost of medical services and legislated changes in statutory benefits, as well as by the particular, unique facts that pertain to each claim. As a result, the rate at which claims arose in the past and the costs to settle them may not always be representative of what will occur in the future. The factors influencing changes in claim costs are often difficult to isolate or quantify and developments in paid and incurred losses from historical trends are frequently subject to multiple and conflicting interpretations. Changes in coverage terms or claims handling practices may also cause future experience and/or development patterns to vary from the past. A key objective of actuaries in developing estimates of ultimate loss and LAE, and resulting IBNR reserves, is to identify aberrations and systemic changes occurring within historical


        experience and accurately adjust for them so that the future can be projected reliably. Because of the factors previously discussed, this process requires the use of informed judgment and is inherently uncertain.

        OneBeacon’s        OneBeacon's actuaries use several generally accepted actuarial methods to evaluate its loss reserves, each of which has its own strengths and weaknesses. OneBeacon places more or less reliance on a particular method based on the facts and circumstances at the time the reserve estimates are made. These methods generally fall into one of the following categories or are hybrids of one or more of the following categories:

          ·Historical paid loss development methods:These methods use historical loss payments over discrete periods of time to estimate future losses. Historical paid loss development methods assume that the ratio of losses paid in one period to losses paid in an earlier period will remain constant. These methods necessarily assume that factors that have affected paid losses in the past, such as inflation or the effects of litigation, will remain constant in the future. Because historical paid loss development methods do not use case reserves to estimate ultimate losses, they can be more reliable than the other methods discussed below that look to case reserves (such as actuarial methods that use incurred losses) in situations where there are significant changes in how case reserves are established by a company’scompany's claims adjusters. However, historical paid loss development methods are more leveraged, meaning that small changes in payments have a larger impact on estimates of ultimate losses, than actuarial methods that use incurred losses because cumulative loss payments take much longer to equal the expected ultimate losses than cumulative incurred amounts. In addition, and for similar reasons, historical paid loss development methods are often slow to react to situations when new or different factors arise than those that have affected paid losses in the past.



          ·Historical incurred loss development methods:These methods, like historical paid loss development methods, assume that the ratio of losses in one period to losses in an earlier period will remain constant in the future. However, instead of using paid losses, these methods use incurred losses (i.e., the sum of cumulative historical loss payments plus outstanding case reserves) over discrete periods of time to estimate future losses. Historical incurred loss development methods can be preferable to historical paid loss development methods because they explicitly take into account open cases and the claims adjusters’adjusters' evaluations of the cost to settle all known claims. However, historical incurred loss development methods necessarily assume that case reserving practices are consistently applied overtime.over time. Therefore, when there have been significant changes in how case reserves are established, using incurred loss data to project ultimate losses can be less reliable than other methods.



          ·Expected loss ratio methods:These methods are based on the assumption that ultimate losses vary proportionately with premiums. Expected loss ratios are typically developed based upon the information used in pricing, and are multiplied by the total amount of premiums written to calculate ultimate losses. Expected loss ratio methods are useful for estimating ultimate losses in the early years of long-tailed lines of business, when little or no paid or incurred loss information is available.



          ·Adjusted historical paid and incurred loss development methods:These methods take traditional historical paid and incurred loss development methods and adjust them for the estimated impact of changes from the past in factors such as inflation, the speed of claim payments or the adequacy of case reserves. Adjusted historical paid and incurred loss development methods are often more reliable methods of predicting ultimate losses in periods of significant change, provided the actuaries can develop methods to reasonably quantify the impact of changes.

        OneBeacon performs an actuarial review of its recorded reserves each quarter. OneBeacon’sOneBeacon's actuaries compare the previous quarter’squarter's estimates of paid loss and LAE, case reserves and IBNR to amounts indicated by actual experience. Differences between previous estimates and actual experience are evaluated to determine whether a given actuarial method for estimating loss and LAE should be relied upon to a greater or lesser extent than it had been in the past. While some variance is expected each quarter due to the inherent uncertainty in loss and LAE, persistent or large variances would indicate that prior assumptions and/or reliance on certain reserving methods may need to be revised going forward.

        In its selection of recorded reserves, OneBeacon historically gave greater weight to adjusted paid loss development methods, which are not dependent on the consistency of case reserving practices, over methods that rely on incurred losses. In recent years, the amount of weight given to methods based on incurred losses has increased with OneBeacon’sOneBeacon's confidence that its case reserving practices have been more consistently applied.


        Upon completion of each quarterly review, OneBeacon’sOneBeacon's actuaries select indicated reserve levels based on the results of the actuarial methods described previously, which are the primary consideration in determining management’smanagement's best estimate of required reserves. At December 31, 2006 and 2005, the differences between OneBeacon’s total held reserves, which represents management’s best estimate of required reserves, and the actuarially indicated reserve level were insignificant. However, in making its best estimate, management also considers other qualitative factors that may lead to a difference between held reserves and actuarially recommended levels in the future. Typically, these factors exist when management and OneBeacon’sOneBeacon's actuaries conclude that there is insufficient historical incurred and paid loss information or that trends included in the historical incurred and paid loss information are unlikely to repeat in the future. Such factors include, among others, recent entry into new markets or new products, improvements in the claims department that are expected to lessen future ultimate loss costs and legal and regulatory developments. At December 31, 2007 and 2006, total carried reserves were 2.7% and 1.8% above the actuarial point estimate, respectively.

          Construction Defect Claims Reserves

        Construction defect claims are a non-A&E exposure that has proven to have a greater degree of uncertainty when estimating loss and LAE using generally accepted actuarial methods. OneBeacon’sOneBeacon's general liability and multiple peril lines of business have been significantly impacted by a large number of construction defect claims. Construction defect is a liability allegation relating to defective work performed in the construction of structures such as apartments, condominiums, single family dwellings or other housing, as well as the sale of defective building materials. Such claims seek recovery due to damage caused by alleged deficient construction techniques or workmanship. Much of the recent claims activity has been generated by plaintiffs’plaintiffs' lawyers who approach new homeowners, and in many cases homeowner associations with large numbers of homeowners in multi-residential complexes, about defects or other flaws in their homes. Claims for construction defects began with claims relating to exposures in California. Then, as plaintiffs’plaintiffs' lawyers organized suits in other states with high levels of multi-residential construction, construction defect claims were reported in nearby western states, such as Colorado and Nevada, and eventually throughout the country. The reporting of such claims can be quite delayed as the statute of limitations can be up to ten years. Court decisions have expanded insurers’insurers' exposure to construction defect claims as well. For example, in 1995 California courts adopted a “continuous trigger”"continuous trigger" theory in which all companies that had ever insured a property that was alleged to have been damaged must respond to the claimant, even if evidence of the alleged damage did not appear until after the insurance period had expired. As a result, construction defect claims may be reported more than ten years after a project has been completed as litigation can proceed for several years before an insurance company is identified as a potential contributor. Claims have also emerged from parties claiming additional insured status on policies issued to other parties (e.g., such as contractors seeking coverage on a sub-contractor’s


        sub-contractor's policy). Further, in reserving for these claims, there is additional uncertainty due to the potential for further unfavorable judicial rulings and regulatory actions. The primary actuarial methods that are used to estimate loss and LAE reserves for construction defect claims are frequency and severity methods. These methods separately project the frequency of future reported claims and the average cost, or severity, of individual claims. The reserve is the product of the projected number of reported claims and the severity.

        A large number of construction defect claims have been identified relating to coverages that OneBeacon had written in the past through Commercial Union Corporation and General Accident Corporation of America, which OneBeacon refers to as their legacy companies, and their subsidiaries in California, Colorado, Nevada, Washington and Oregon. OneBeacon’sOneBeacon's management has sought to mitigate future construction defect risks in all states by no longer providing insurance to certain residential general contractors and sub-contractors involved in multi-habitational projects. Mitigating actions also included initiating the withdrawal from problematic sub-segments within OneBeacon’sOneBeacon's construction book of business, such as street and road construction, water, sewer and pipeline construction. As a result of these actions, OneBeacon’sOneBeacon's management believes that the number of reported construction defect claims relating to coverages written in the past peaked in 2004 and will continue to decline.


          Asbestos and Environmental (“("A&E”&E") Reserves

        OneBeacon’s        OneBeacon's reserves include provisions made for claims that assert damages from A&E related exposures. Asbestos claims relate primarily to injuries asserted by those who allegedly came in contact with asbestos or products containing asbestos. Environmental claims relate primarily to pollution and related clean-up cost obligations, particularly as mandated by federal and state environmental protection agencies. In addition to the factors described above under"Non-Asbestos and Environmental Reserves” Reserves" regarding the reserving process, OneBeacon estimates its A&E reserves based upon, among other factors, facts surrounding reported cases and exposures to claims, such as policy limits and deductibles, current law, past and projected claim activity and past settlement values for similar claims, as well as analysis of industry studies and events, such as recent settlements and asbestos-related bankruptcies. The cost of administering A&E claims, which is an important factor in estimating loss and LAE reserves, tends to be higher than in the case of non-A&E claims due to the higher legal costs typically associated with A&E claims.

        A large portion of OneBeacon’sOneBeacon's A&E losses resulted from the operations of the Employers Group, an entity acquired by one of the legacy companies in 1971. These operations, including business of Employers Surplus Lines Insurance Company and Employers Liability Assurance Corporation, provided primary and excess liability insurance for commercial insureds, including Fortune 500-sized accounts, some of whom subsequently experienced claims for A&E losses. OneBeacon stopped writing such coverage in 1984.

        OneBeacon’s        OneBeacon's liabilities forAfor A&E losses from business underwritten in the recent past are substantially limited by the application of exclusionary clauses in the policy language that eliminated coverage for such claims. After 1987 for pollution and 1992 for asbestos, most liability policies contained industry-standard absolute exclusions of such claims. In earlier years, various exclusions were also applied, but the wording of those exclusions was less strict and subsequent court rulings have reduced their effectiveness.

        OneBeacon also incurred A&E losses via its participation in industry pools and associations. The most significant of these pools was Excess Casualty Reinsurance Association (“ECRA”("ECRA"), which provided excess liability reinsurance to U.S. insurers from 1950 until the early 1980s. ECRA incurred significant liabilities forAfor A&E, of which OneBeacon bears approximately a 4.7% share, or $60 million and $65 million at both December 31, 2007 and 2006, and 2005,respectively, which is fully reflected in OneBeacon’sOneBeacon's loss and LAE reserves.

        More recently, since the 1990s, OneBeacon has experienced an increase in claims from commercial insureds, including many non-Fortune 500-sized accounts written during the 1970s and 1980s, who are named as defendants in asbestos lawsuits. As a number of large well-known manufacturers of asbestos and asbestos-containing products have gone into bankruptcy, plaintiffs have sought recoveries from peripheral defendants, such as installers, transporters or sellers of such products, or from owners of premises on which the plaintiffs’plaintiffs' exposure to asbestos allegedly occurred. At December 31, 2006, 5202007, 491 policyholders had asbestos-related claims against OneBeacon. In 2006, 1212007, 102 new insureds with such peripheral involvement presented asbestos claims under prior OneBeacon policies.

        Historically, most asbestos claims have been asserted as product liability claims. Recently, insureds who have exhausted the available products liability limits of their insurance policies have sought from insurers such as OneBeacon payment for asbestos claims under the premises and operations coverage of their liability policies, which may not be subject to similar aggregate limits. OneBeacon expects this trend to continue. However, to date there have been fewer of these premises and operations coverage claims than product liability coverage claims. This may


        be due to a variety of factors, including that it may be more difficult for underlying plaintiffs to establish losses as stemming from premises and operations exposures, which requires proof of the defendant’sdefendant's negligence, rather than products liability under which strict legal liability applies. Premises and operations claims may vary significantly and policyholders may seek large amounts, although such claims frequently settle for a fraction of the initial alleged amount. Accordingly, there is a great deal of variation in damages awarded for the actual injuries. As of December 31, 2006,2007, there were approximately 323261 active claims by insureds against us without product liability coverage asserting operations or premises coverage, which may not be subject to aggregate limits under the policies.

        Immediately prior to the OneBeacon Acquisition, OneBeacon purchased a reinsurance contract with NICO under which OneBeacon is entitled to recover from NICO up to $2.5 billion in the future for asbestos claims arising from business written by OneBeacon in 1992 and prior, environmental claims arising from business written by OneBeacon in 1987 and prior, and certain other exposures, including mass torts. Under the terms of the NICO Cover, NICO receives the economic benefit of reinsurance recoverables from certain of OneBeacon’sOneBeacon's third party reinsurers in existence at the time the NICO Cover was executed (“("Third Party Recoverables”Recoverables"). As a result, the Third Party Recoverables serve to protect the $2.5 billion limit of NICO coverage for the benefit of OneBeacon. Any amounts uncollectible from third party reinsurers due to dispute or the reinsurers’reinsurers' financial inability to pay are covered by NICO


        under its agreement with OneBeacon. Third Party Recoverables are typically for the amount of loss in excess of a stated level each year. Of claim payments from 19951996 through 2006,2007, approximately 50%49% of asbestos and environmental losses have been recovered under the historical third party reinsurance.

        In June 2005, OneBeacon completed an internal study of its A&E exposures. This study considered, among other items, (1) facts, such as policy limits, deductibles and available third party reinsurance, related to reported claims; (2) current law; (3) past and projected claim activity and past settlement values for similar claims; (4) industry studies and events, such as recent settlements and asbestos-related bankruptcies; and (5) collectibility of third-party reinsurance. Based on the study, OneBeacon increased its best estimate of its incurred losses ceded to NICO, net of underlying reinsurance, by $353 million ($841 million gross) to $2.1 billion, which is within the $2.5 billion coverage provided by the NICO Cover. Based on the study, OneBeacon estimated that the range of reasonable outcomes around its best estimate was $1.7 billion to $2.4 billion, versus a range of $1.5 billion to $2.4 billion from the previous study that was conducted in 2003. Due to the NICO Cover, there was no impact to income or equity from the change in estimate.

        The increase in the estimate of incurred A&E losses was principally driven by raised projections for claims related to asbestos (particularly from assumed reinsurance business), and for mass torts other than asbestos and environmental, particularly lead poisoning and sexual molestation. The increase was partially offset by reduced projections of ultimate hazardous waste losses.

        As part of its previously described actuarial review process, OneBeacon reviews A&E activity each quarter and compares that activity to what was assumed in the original internal study. As of December 31, 2006,2007, OneBeacon estimated that the range of reasonable outcomes around its best estimate was $1.7 billion to $2.4 billion.

        As noted above, OneBeacon estimates that on an incurred basis it has ceded estimated incurred losses of approximately $2.1 billion of the coverage provided by NICO at December31, 2006.December 31, 2007. Since entering into the NICO Cover, $29$40 million of the $2.1 billion of utilized coverage relates to uncollected amounts from third party reinsurers through December 31, 2006.2007. Net losses paid totaled approximately $847$986 million as of December 31, 2006,2007, with $146$139 million paid in 2006.2007. Asbestos payments during 20062007 reflect payments resulting from intensified efforts by claimants to resolve asbestos claims prior to the potential enactment of Federal asbestos legislation. To the extent that OneBeacon’sOneBeacon's estimate of ultimate A&E losses as well as the estimate and collectibility of Third Party Recoverables differs from actual experience, the remaining protection under the NICO Cover may be more or less than the approximate $404 million that OneBeacon estimates remained at December 31, 2006.2007.

        OneBeacon’s        OneBeacon's reserves for A&E losses, net of Third Party Recoverables but prior to NICO recoveries, were $1.2$1.0 billion at December 31, 2006.2007. An industry benchmark of reserve adequacy is the “survival ratio”"survival ratio", computed as a company’scompany's reserves divided by its historical average yearly loss payments. This ratio indicates approximately how many more years of payments the reserves can support, assuming future yearly payments are equal to historical levels. OneBeacon’sOneBeacon's survival ratio was 16.614.2 at December 31, 2006.2007. This was computed as the ratio of A&E reserves, net of Third Party Recoverables prior to the NICO Cover of $1.2 billion plus the remaining unused portion of the NICO Cover of $404 million, to the average A&E loss payments over the three-year period ended December 31, 2006,2007, net of Third Party Recoverables. OneBeacon’sOneBeacon's survival ratio was 18.616.6 at December 31, 2005.2006. OneBeacon believes that as a result of the NICO Cover and its historical third party reinsurance programs, OneBeacon should not experience material financial loss from A&E exposures under current coverage interpretations and that its survival ratio compares


        favorably to industry survival ratios. However, the survival ratio is a simplistic measure estimating the number of years it would be before the current ending loss reserves for these claims would be paid using recent annual average payments. Many factors, such as aggressive settlement procedures, mix of business and coverage provided, have a significant effect on the amount of A&E reserves and payments and the resultant survival ratio. Thus, caution should be exercised in attempting to determine reserve adequacy for these claims based simply on this survival ratio.

        OneBeacon’s        OneBeacon's reserves for A&E losses at December 31, 20062007 represent management’smanagement's best estimate of its ultimate liability based on information currently available. Based on this estimate, OneBeacon believes the NICO Cover will be adequate to cover all of its A&E obligations. However, as case law expands, medical and clean-up costs increase and industry settlement practices change, OneBeacon may be subject to A&E losses beyond currently estimated amounts. Therefore, OneBeacon cannot guarantee that its A&E loss and LAE reserves, plus the remaining coverage under the NICO Cover, will be sufficient to cover additional liability arising from any such unfavorable developments. SeeNote 3 — “Reserves3—"Reserves for Unpaid Loss and LAE—Asbestos and environmental loss and LAE reserve activity”activity" of the accompanying historical consolidated financial statements for more information regarding its A&E reserves.


        OneBeacon A&E Claims Activity

        OneBeacon’s        OneBeacon's A&E claim activity for the last two years is illustrated in the table below.below:

         

        Year Ended December 31,

         

         Year Ended December 31,
         
        A&E Claims Activity

         

         

        2006

         

        2005

         

        2007
         2006
         

        Asbestos

         

         

         

         

         

             

        Accounts with asbestos claims at the beginning of the year

         

        592

         

        664

         

         542 592 

        Accounts reporting asbestos claims during the year

         

        121

         

        128

         

         102 121 

        Accounts on which asbestos claims were closed during the year

         

        (193

        )

        (200

        )

         (153)(171)
         
         
         

        Accounts with asbestos claims at the end of the year

         

        520

         

        592

         

         491 542 
         
         
         

        Environmental

         

         

         

         

         

             

        Accounts with environmental claims at the beginning of the year

         

        495

         

        644

         

         443 495 

        Accounts reporting environmental claims during the year

         

        130

         

        180

         

         135 130 

        Accounts on which environmental claims were closed during the year

         

        (203

        )

        (329

        )

         (196)(182)
         
         
         

        Accounts with environmental claims at the end of the year

         

        422

         

        495

         

         382 443 
         
         
         

        Total

         

         

         

         

         

             

        Total accounts with A&E claims at the beginning of the year

         

        1,087

         

        1,308

         

         985 1,087 

        Accounts reporting A&E claims during the year

         

        251

         

        308

         

         237 251 

        Accounts on which A&E claims were closed during the year

         

        (396

        )

        (529

        )

         (349)(353)
         
         
         

        Total accounts with A&E claims at the end of the year

         

        942

         

        1,087

         

         873 985 
         
         
         

        OneBeacon’sOneBeacon's Loss and LAE Reserves by Line of Business

        The process of establishing loss reserves is complex and imprecise as it must take into consideration many variables that are subject to the outcome of future events. As a result, informed subjective estimates and judgments as to OneBeacon’sOneBeacon's ultimate exposure to losses are an integral component of its loss reserving process. OneBeacon, like other insurance companies, categorizes and tracks its insurance reserves by “line"line of business”business", such as autoautomobile liability, multiple peril package business, and workers compensation. Furthermore, OneBeacon regularly reviews the appropriateness of reserve levels at the line of business level, taking into consideration the variety of trends that impact the ultimate settlement of claims for the subsets of claims in each particular line of business.


        For loss and allocated loss adjustment expense reserves, excluding asbestos and environmental,A&E, the key assumption as of December 31, 20062007 was that the impact of the various reserving factors, as described below, on future paid losses would be similar to the impact of those factors on the historical loss data with the following exceptions:

        ·

          Recent increases in paid loss trends were inflated due to changes in claim handling procedures that decreased the settlement time for claims. This resulted in some increases in paid loss activity that OneBeacon believes will not continue into the future.

          ·

          Increases in case reserve adequacy over the 2001-2004 calendar periods have resulted in trends in case incurred activity that OneBeacon believes will not continue into the future. Case incurred activity can be the result of underlying changes in expected claim costs or changes in the adequacy of the case reserves relative to the underlying expected claim cost. If the activity is the result of underlying changes in expected costs, it is more likely to repeat in the future, and would likely result in prior year reserve development, as the change in ultimate claim costs would not have been considered when making the previous selection of IBNR reserves. If the activity is the result of changes in case reserve adequacy, it would not indicate any change in the ultimate claim costs and would not be expected to repeat in the future. In these cases, it is unlikely that prior year reserve development would occur, as the change in case reserves would be offset by a corresponding change in IBNR reserves (i.e., deficiency or redundancy in case reserves was implicitly captured when making the previous selection of IBNR reserves).

          ·

          In 2004, OneBeacon established a separate claim group to manage run-off claims. Due to the recent nature of this event, OneBeacon does not believe that the impacts of this group on future losses have been reflected in historical losses. Therefore, OneBeacon has given considerable weight to the most recent loss experience for this segment.


          The major causes of material uncertainty (“("reserving factors”factors") generally will vary for each product line, as well as for each separately analyzed component of the product line. The following section details reserving factors by product line. There could be other reserving factors that may impact ultimate claim costs. Each reserving factor presented will have a different impact on estimated reserves. Also, reserving factors can have offsetting or compounding effects on estimated reserves. For example, in workers compensation, the use of expensive medical procedures that result in medical cost inflation may enable workers to return to work faster, thereby lowering indemnity costs. Thus, in almost all cases, it is impossible to discretely measure the effect of a single reserving factor and construct a meaningful sensitivity expectation. Actual results will likely vary from expectations for each of these assumptions, resulting in an ultimate claim liability that is different from that being estimated currently.

            Workers compensation

          Workers compensation is generally considered a long tail coverage, as it takes a relatively long period of time to finalize claims from a given accident year. While certain payments such as initial medical treatment or temporary wage replacement for the injured worker are made quickly, some other payments are made over the course of several years, such as awards for permanent partial injuries. In addition, some payments can run as long as the injured worker’sworker's life, such as permanent disability benefits and ongoing medical care. Despite the possibility of long payment tails, the reporting lags are generally short, settlements are generally not complex, and most of the liability can be considered high frequency with moderate severity. The largest reserve risk generally comes from the low frequency, high severity claims providing lifetime coverage for medical expense arising from a worker’sworker's injury. Examples of common reserving factors that can change and, thus, affect the estimated workers compensation reserves include:

            General workers compensation reserving factors

            ·

            Mortality trends of injured workers with lifetime benefits and medical treatment or dependents entitled to survivor benefits

            ·

            Degree of cost shifting between workers compensation and health insurance

            ·

            Changes in claim handling philosophies (e.g., case reserving standards)


            Indemnity reserving factors

            ·

            Time required to recover from the injury

            ·

            Degree of available transitional jobs

            ·

            Degree of legal involvement

            ·

            Changes in the interpretations and processes of various workers compensation bureaus’bureaus' oversight of claims

            ·

            Future wage inflation for states that index benefits

            ·

            Changes in the administrative policies of second injury funds

            ·

            Re-marriage rate for spouse in instances of death

            Medical reserving factors

            ·

            Changes in the cost of medical treatments, including prescription drugs, and underlying fee schedules

            ·

            Frequency of visits to health providers

            ·

            Number of medical procedures given during visits to health providers

            ·

            Types of health providers used

            ·

            Type of medical treatments received

            ·

            Use of preferred provider networks and other medical cost containment practices

            ·

            Availability of new medical processes and equipment

            ·

            Changes in the use of pharmaceutical drugs

            ·

            Degree of patient responsiveness to treatment

            Workers compensation book of business reserving factors

            ·

            Product mix

            ·

            Injury type mix

            ·

            Changes in underwriting standards


              Personal automobile liability

            The personal automobile product line is a mix of property and liability coverages and, therefore, includes both short and long tail coverages. The payments that are made quickly typically pertain to auto physical damage (property) claims and property damage (liability) claims. The payments that take longer to finalize and are more difficult to estimate relate to bodily injury claims. Personal automobile reserves are typically analyzed in three components: bodily injury liability, property damage liability, and collision/comprehensive claims. This last component has minimum reserve risk and fast payouts and, accordingly, separate factors are not presented. Reporting lags are relatively short and the claim settlement process for personal automobile liability generally is the least complex of the liability products. It is generally viewed as a high frequency, low to moderate severity product line.

            Examples of common reserving factors that can change and, thus, affect the estimated personal automobile liability reserves include:

              Personal automobile liability reserving factors

              ·

              Trends in jury awards

              ·

              Changes in the underlying court system and its philosophy

              ·

              Changes in case law

              ·

              Litigation trends

              ·

              Frequency of claims with payment capped by policy limits

              ·

              Change in average severity of accidents, or proportion of severe accidents

              ·

              Subrogation opportunities

              ·

              Degree of patient responsiveness to treatment

              ·

              Changes in claim handling philosophies (e.g., case reserving standards)


              Personal automobile liability book of business reserving factors

              ·

              Changes in policy provisions (e.g., deductibles, policy limits, or endorsements)

              ·

              Changes in underwriting standards

              Multiple peril

            Commercial multiple peril provides a combination of property and liability coverage typically for small businesses and, therefore, includes both short and long tail coverages. For property coverage, it generally takes a relatively short period of time to close claims, while for the other coverages, generally for the liability coverages, it takes a longer period of time to close claims. The reserving risk for this line is dominated by the liability coverage portion of this product, except occasionally in the event of catastrophic or large single losses.

            Multiple peril liability reserves here are generally analyzed as two components: bodily injury and property damage. Bodily injury payments reimburse the claimant for damages pertaining to physical injury as a result of the policyholder’spolicyholder's legal obligation arising from non-intentional acts such as negligence, subject to the insurance policy provisions. In some cases the damages can include future wage loss (which is a function of future earnings power and wage inflation) and future medical treatment costs. Property damage payments result from damages to the claimant’sclaimant's private property arising from the policyholder’spolicyholder's legal obligation for non-intentional acts. In most cases, property damage losses are a function of costs as of the loss date, or soon thereafter. Defense costs are also a part of the insured costs covered by liability policies and can be significant, sometimes greater than the cost of the actual paid claims, though for some products this risk is mitigated by policy language such that the insured portion of defense costs erodes the amount of policy limit available to pay the claim.

            Multiple peril liability is generally considered a long tail line, as it takes a relatively long period of time to finalize and settle claims from a given accident year. The speed of claim reporting and claim settlement is a function of the specific coverage provided and the jurisdiction, among other factors. There are numerous components underlying the multiple peril liability product line. Some of these have relatively moderate payment patterns (with most of the claims for a given accident year closed within 5 to 7 years), while others can have extreme lags in both reporting and payment of claims (e.g., a reporting lag of a decade for “construction defect”"construction defect" claims).

            Examples of common reserving factors that can change and, thus, affect the estimated multiple peril liability reserves include:


              Multiple peril liability reserving factors

              ·

              Changes in claim handling philosophies (e.g., case reserving standards)

              ·

              Changes in policy provisions or court interpretations of such provisions

              ·

              New theories of liability

              ·

              Trends in jury awards

              ·

              Changes in the propensity to sue, in general with specificity to particular issues

              ·

              Changes in statutes of limitations

              ·

              Changes in the underlying court system

              ·

              Distortions from losses resulting from large single accounts or single issues

              ·

              Changes in tort law

              ·

              Shifts in law suit mix between federal and state courts

              ·

              Changes in settlement patterns

              Multiple peril liability book of business reserving factors

              ·

              Changes in policy provisions (e.g., deductibles, policy limits, or endorsements)

              ·

              Changes in underwriting standards

              ·

              Product mix (e.g., size of account, industries insured, or jurisdiction mix)


              Commercial automobile liability

            The commercial automobile product line is a mix of property and liability coverages and, therefore, includes both short and long tail coverages. The payments that are made quickly typically pertain to auto physical damage (property) claims and property damage (liability) claims. The payments that take longer to finalize and are more difficult to estimate relate to bodily injury claims. Commercial automobile reserves are typically analyzed in three components; bodily injury liability, property damage liability, and collision/comprehensive claims. This last component has minimum reserve risk and fast payouts and, accordingly, separate reserving factors are not presented. In general, claim reporting lags are minor, claim complexity is not a major issue, and the line is viewed as high frequency, low to moderate severity.

            Examples of common reserving factors that can change and, thus, affect the estimated commercial automobile liability reserves include:

              Bodily injury and property damage liability reserving factors

              ·

              Trends in jury awards

              ·

              Changes in the underlying court system

              ·

              Changes in case law

              ·

              Litigation trends

              ·

              Frequency of claims with payment capped by policy limits

              ·

              Change in average severity of accidents, or proportion of severe accidents

              ·

              Subrogation opportunities

              ·

              Changes in claim handling philosophies (e.g., case reserving standards)

              ·

              Frequency of visits to health providers

              ·

              Number of medical procedures given during visits to health providers

              ·

              Types of health providers used

              ·

              Types of medical treatments received

              ·

              Changes in cost of medical treatments

              ·

              Degree of patient responsiveness to treatment

              Commercial automobile liability book of business reserving factors

              ·

              Changes in policy provisions (e.g., deductibles, policy limits, or endorsements)

              ·

              Changes in mix of insured vehicles (e.g., long-haul trucks versus local and smaller vehicles, or fleet risks versus non-fleet risks)

              ·

              Changes in underwriting standards


                General liability

              See the above discussions under the liability product lines with regard to reserving factors for multiple peril.

                Homeowners/Farmowners

              Homeowners/Farmowners is generally considered a short tail coverage. Most payments are related to the property portion of the policy, where the claim reporting and settlement process is generally restricted to the insured and the insurer. Claims on property coverage are typically reported soon after the actual damage occurs, although delays of several months are not unusual. The resulting settlement process is typically fairly short term, although exceptions do exist. The liability portion of the homeowners/farmowners policy generates claims which take longer to pay due to the involvement of litigation and negotiation, but with generally small reporting lags. Overall, the line is generally high frequency, low to moderate severity (except for catastrophes), with simple to moderate claim complexity.


              Examples of common reserving factors that can change and, thus, affect the estimated homeowners/farmowners reserves include:

                Non-catastrophe reserving factors

                ·

                Salvage opportunities

                ·

                Amount of time to return property to residential use

                ·

                Changes in weather patterns

                ·

                Local building codes

                ·

                Litigation trends

                ·

                Trends in jury awards

                Catastrophe reserving factors

                ·

                Physical concentration of policyholders

                ·

                Availability and cost of local contractors

                ·

                Local building codes

                ·

                Quality of construction of damaged homes

                ·

                Amount of time to return property to residential use

                ·

                For the more severe catastrophic events, “demand surge”"demand surge" inflation, whereby the greatly increased demand for building materials such as plywood far surpasses the immediate supply, leading to short-term material increases in building material costs

                Homeowners/Farmowners book of business reserving factors

                ·

                Policy provisions mix (e.g., deductibles, policy limits, or endorsements)

                ·

                Degree of concentration of policyholders

                ·

                Changes in underwriting standards

                OneBeacon Loss and LAE Development

                Loss and LAE development—2007

                      In 2007, OneBeacon experienced $48 million of favorable development on prior accident year loss reserves. The favorable development was primarily related to lower than expected frequency for professional liability in specialty lines and lower than expected severity for automobile liability in personal lines offset by unfavorable development for multiple peril and workers compensation primarily for accident years 2001 and prior.

                      Specifically, at December 31, 2006, management continued to expect losses to emerge in the professional liability business (which is included in OneBeacon's general liability line of business) in line with initial expectations based on market analysis when this business was initiated in 2002 and 2003. During 2007, emerged losses continued to be significantly lower than those initial expectations. As a result, management lowered its selected reserves on the earliest years of this business which had some effect on the more recent years as total loss expectations for those years are partially based on results from earlier years.


                      Management had implicitly assumed at December 31, 2006 that the IBNR and known case development related to personal automobile liability would be approximately 49% of actual case reserves for the 2002 and subsequent accident years. During 2007, case incurred loss and allocated LAE ("ALAE") was only 28% of the future expected development which was smaller than expected for this relatively short tail line of business. As a result, management decreased IBNR reserves for this line so that as of December 31, 2007 the IBNR was approximately 49% relative to the remaining case reserves. Prior to decreasing the IBNR reserves, the IBNR as of December 31, 2007 was approximately 74% of remaining case reserves.

                      Management had implicitly assumed at December 31, 2006 that the IBNR and known case development related to workers compensation and multiple peril liability would be approximately 15% of actual case reserves for the 2001 and prior accident years. During 2007, case incurred loss and ALAE was 47% of the entire future expected development which was unusually large for these long tail lines of business. As a result, management increased IBNR reserves for these lines so that as of December 31, 2007 the IBNR was approximately 28% relative to the remaining case reserves.

                Loss and LAE development—2006

              In 2006, OneBeacon experienced $23 million of unfavorable development on prior accident year loss and LAE reserves, primarily due to additional losses incurred on hurricanes Katrina, Rita and Wilma in OBSP.

                      Specifically at December 31, 2005, OneBeacon's management had reviewed all known losses related to hurricane events impacting its excess property policies. Based on information at that time, management established reserves for those losses which were expected to reach coverage layers. During 2006, several individual claims experienced adverse development resulting in more losses penetrating coverage layers. As a result, management increased held reserves as of December 31, 2006 to reflect the actual adverse claim development as well as a provision for future adverse development on these claims.

                Loss and LAE development—2005

              In 2005, OneBeacon experienced $95 million of unfavorable development on prior accident year loss and LAE reserves, primarily due to higher than anticipated legal defense costs and higher damages from liability assessments in general liability and multiple peril reserves in its run-off operations.

              Specifically, OneBeacon’sOneBeacon's management had assumed at December 31, 2004 that the IBNR and known case development would be approximately 26% of actual case reserves for the 2001 and prior accident years for multiple peril and general liability. During 2005, case incurred loss and LAEALAE was 72% of the entire future expected development which was unusually large for these long tail lines of business. As a result, OneBeacon’sOneBeacon's management increased IBNR reserves for these lines so that as of year end 2005 the IBNR was approximately 40% relative to the remaining case reserves.


                Loss and LAE development—2004

                OneBeacon experienced $99 million of net unfavorable development on prior accident year loss and LAE reserves during 2004, relating primarily to 2002 and prior accident years. The net unfavorable development related primarily to personal auto liability, general liability and multiple peril reserves due in part to emerging trends in claims experienced in its run-off operations, including national account and program claims administered by third parties. These claim trends principally included higher defense costs and higher damages from liability assessments.

                Prior to 2004, OneBeacon’s management had made assumptions that case reserving standards and settlement practices in the run-off operations would be consistent with the standards and practices that were observed in the ongoing operations. During 2004, multiple peril liability and general liability case incurred loss and LAE for run-off claims was double that for ongoing claims. As a result, OneBeacon’s management increased the overall level of reserves for run-off during 2004. In addition, OneBeacon’s management undertook a more in depth review of the standards and practices as they applied to run-off claims and formed a separate run-off claims unit.

                OneBeacon’sOneBeacon's Case and IBNR Reserves by Line of Business

              OneBeacon’s        OneBeacon's net loss and LAE reserves by line of business at December 31, 20062007 and 20052006 were as follows:

              Net loss and LAE reserves by class of business

               

              December 31, 2006

               

              December 31, 2005

               

               December 31, 2007
               December 31, 2006

              Millions

               

              Case

               

              IBNR

               

              Total

               

              Case

               

              IBNR

               

              Total

               

              Workers compensation (1)

               

              $

              82.0

               

              $

              136.3

               

              $

              218.3

               

              $

              195.2

               

              $

              132.6

               

              $

              327.8

               

              Millions

              Case
               IBNR
               Total
               Case
               IBNR
               Total
               $81.3 $95.8 $177.1 $82.0 $136.3 $218.3

              Personal automobile liability

               

              378.6

               

              187.5

               

              566.1

               

              445.5

               

              174.7

               

              620.2

               

               305.2 139.3 444.5 378.6 187.5 566.1

              Multiple peril (1)(2)

               

              237.9

               

              193.0

               

              430.9

               

              310.4

               

              236.0

               

              546.4

               

              Multiple peril(1)(2) 247.0 206.1 453.1 237.9 193.0 430.9

              Commercial automobile liability

               

              110.2

               

              66.2

               

              176.4

               

              140.2

               

              65.6

               

              205.8

               

               99.7 61.8 161.5 110.2 66.2 176.4

              General liability (2)

               

              77.0

               

              281.1

               

              358.1

               

              106.1

               

              227.2

               

              333.3

               

              General liability(2)(3) 80.2 305.3 385.5 77.0 281.1 358.1

              Homeowners/Farmowners

               

              72.7

               

              33.4

               

              106.1

               

              81.1

               

              41.4

               

              122.5

               

               71.5 22.8 94.3 72.7 33.4 106.1

              Other (1)

               

              105.2

               

              67.4

               

              172.6

               

              115.5

               

              59.9

               

              175.4

               

              Other(1)(4) 95.9 56.3 152.2 105.2 67.4 172.6
               
               
               
               
               
               

              Total

               

              $

              1,063.6

               

              $

              964.9

               

              $

              2,028.5

               

              $

              1,394.0

               

              $

              937.4

               

              $

              2,331.4

               

               $980.8 $887.4 $1,868.2 $1,063.6 $964.9 $2,028.5
               
               
               
               
               
               

              (1)
              Includes loss and LAE reserves related to A&E.



              (2)
              Includes loss and LAE reserves related to construction defect claims.

              (3)
              Includes loss and LAE reserves related to professional liability.

              (4)
              Includes loss and LAE reserves related to marine liability.

                OneBeacon’sOneBeacon's Range of Reserves by Line of Business

              OneBeacon’s        OneBeacon's range of reserve estimates at December 31, 20062007 was evaluated to consider the strengths and weaknesses of the actuarial methods applied against OneBeacon’sOneBeacon's historical claims experience data. The following table shows the recorded reserves and the high and low ends of OneBeacon’sOneBeacon's range of reasonable loss reserve estimates at December 31, 2006.2007. The high and low ends of OneBeacon’sOneBeacon's range of reserve estimates in the table below are based on the results of various actuarial methods described above.

              OneBeacon net loss and LAE reserves by line of business
              Range and recorded reserves

               

              December 31, 2006

               

              OneBeacon net loss and LAE reserves by line of business

                
                
                
              Range and recorded reserves

               December 31, 2007
              Millions

               

              Low

               

              Recorded

               

              High

               

              Low
               Recorded
               High

              Workers compensation

               

              $

              183

               

              $

              218.3

               

              $

              304

               

               $142 $177.1 $225

              Personal automobile liability

               

              502

               

              566.1

               

              582

               

               406 444.5 481

              Multiple peril

               

              401

               

              430.9

               

              526

               

               408 453.1 504

              Commercial automobile liability

               

              169

               

              176.4

               

              190

               

               152 161.5 173

              General liability

               

              283

               

              358.1

               

              382

               

               287 385.5 424

              Homeowners/Farmowners

               

              93

               

              106.1

               

              107

               

               83 94.3 96

              Other

               

              159

               

              172.6

               

              174

               

               140 152.2 154
               
               
               

              Total

               

              $

              1,790

               

              $

              2,028.5

               

              $

              2,265

               

               $1,618 $1,868.2 $2,057
               
               
               

                      


              The recorded reserves represent management’smanagement's best estimate of unpaid loss and LAE by line of business. OneBeacon uses the results of several different actuarial methods to develop its estimate of ultimate reserves. While OneBeacon has not determined the statistical probability of actual ultimate paid losses falling within the range, OneBeacon believes that it is reasonably likely that actual ultimate paid losses will fall within the ranges noted above because the ranges were developed by using several different generally accepted actuarial methods.

              The probability that ultimate losses will fall outside of the ranges of estimates by line of business is higher for each line of business individually than it is for the sum of the estimates for all lines taken together due to the effects of diversification. The diversification effects result from the fact that losses across OneBeacon’sOneBeacon's different lines of business are not completely correlated. Although OneBeacon believes its reserves are reasonably stated, ultimate losses may deviate, perhaps materially, from the recorded reserve amounts and could be above the high end of the range of actuarial projections. This is because ranges are developed based on known events as of the valuation date, whereas the ultimate disposition of losses is subject to the outcome of events and circumstances that may be unknown as of the valuation date.

              The percentages shown in the following table represent the linear interpolation of where OneBeacon’sOneBeacon's recorded loss and LAE reserves are within the range of reserves estimates by line of business at December 31, 20062007 and 2005,2006, where the low end of the range equals zero, the middle of the range equals 50% and the high end of the range equals 100%.

              OneBeacon net loss and LAE reserves by line of business

               

              December 31,

               

                
                
               
              (expressed as a percentage of the range)

               December 31,
               

               

              2006

               

              2005

               

              2007
               2006
               

              Workers compensation

               

              29

              %

              39

              %

               42%29%

              Personal automobile liability

               

              81

               

              61

               

               51 81 

              Multiple peril

               

              24

               

              30

               

               47 24 

              Commercial automobile liability

               

              33

               

              37

               

               47 33 

              General liability

               

              75

               

              57

               

               72 75 

              Homeowners/Farmowners

               

              93

               

              83

               

               91 93 

              Other

               

              91

               

              78

               

               82 91 
               
               
               

              Total

               

              50

              %

              46

              %

               57%50%
               
               
               

                      

              For some typesDuring 2007, management saw increasing consistency in the actuarial methods which were used to develop the range of claims, such as workers compensation, OneBeacon used forecasting models that consider the unique loss development characteristicsreserves for certain long tailed lines of these types of claims.business. As a result, of the trends suggested by these models, OneBeacon chose amanagement selected point estimate that was at a lower point in the range at December 31, 2006 as compared to the prior year. OneBeacon selected a point estimateestimates higher in the range and closer to the middle of the range for workers compensation, commercial automobile liability and multiple peril. Additionally in 2007, management continued to see favorable trends in some newer and/or growing segments of business, in part based on OneBeacon’s view that actuarial methods that rely on historical loss and LAE patterns may have a higher degree of uncertainty for these businesses. As these segments accumulate more historical data, OneBeacon’s selections place greater reliance on the emerging experience.relative to initial expectations. For personal automobile liability, this resulted in OneBeacon recording reserves at the higher end of the range in 2006, reflectingselecting a more conservative view of recently emerging favorable loss experience. OneBeacon also selected a point estimate higherreserve lower in the range for general liability in 2006 asand closer to the reserves in this line are increasingly related to OneBeacon’s growing professional liability business.middle of the range. For homeowners and “other”"other" (principally shorter tailed lines of business such as ocean and inland marine insurance) recorded reserves remain at the high end of their respective ranges, as OneBeacon’smanagement's selections reflect a conservative approach to recognition of recent favorable incurred loss development patterns. In general management continues to select somewhat higher in the range for newer and/or growing segments and as those reserves become an increasing proportion of its total reserves, OneBeacon's overall selected reserves have moved up in the range.

                80




                Sensitivity Analysis

              The following discussion includes disclosure of possible variations from current estimates of loss reserves due to a change in certain key assumptions. Each of the impacts described below is estimated individually, without consideration for any correlation among key assumptions or among lines of business. Therefore, it would be inappropriate to take each of the amounts described below and add them together in an attempt to estimate volatility for OneBeacon’sOneBeacon's reserves in total. It is important to note that the variations discussed are not meant to be a worst-case scenario, and therefore, it is possible that future variations may be more than amounts discussed below.

              ·

                Workers compensation: Recorded reserves for workers compensation were $218$177 million at December 31, 2006.2007. The two most important assumptions for workers compensation reserves are loss development factors and loss cost trends, particularly medical cost inflation. Loss development patterns are dependent on medical cost inflation. Approximately half of the workers compensation net reserves are related to future medical costs. Across the entire reserve base, a 0.5 point change in calendar year medical inflation would have changed the estimated net reserve by $54$50 million at December 31, 2006,2007, in either direction.

                ·

                Personal automobile liability: Recorded reserves for personal autoautomobile liability were $566$444 million across all lines at December 31, 2006.2007. Personal autoautomobile liability reserves are shorter-tailed than other lines of business (such as workers compensation) and, therefore, less volatile. However, the size of the reserve base means that future changes in estimate could be material to OneBeacon’sOneBeacon's results of operations in any given period. A key assumption for personal autoautomobile liability is the implicit loss cost trend, particularly the severity trend component of loss costs. A 2.0 point change in assumed annual severity for the two most recent accident years would have changed the estimated net reserve by $16$13 million at December31, 2006,December 31, 2007, in either direction. Assumed annual severity for accident years prior to the two most recent accident years is likely to have minimal variability.

                ·

                Multiple peril liability and general liability: Recorded reserves for multiple peril and general liability combined were $789$839 million at December 31, 2006.2007. Reported loss development patterns are a key assumption for these lines of business, particularly for more mature accident years. Historically, assumptions on reported loss development patterns have been impacted by, among other things, emergence of new types of claims (e.g. construction defect claims) or a shift in the mixture between smaller, more routine claims and larger, more complex claims. If the severity trend for construction defect claims changed by 3.0 points this would have changed the estimated net reserve by $11$6 million at December 31, 2006,2007, in either direction. Separately, if case reserve adequacy for non construction defect claims changed by 10.0 points this would have changed the estimated net reserve by $23$24 million at December 31, 2006,2007, in either direction.


                White Mountains Re

                  White Mountains Re A&E Reserves

                White Mountains Re’sRe's A&E exposure is primarily from reinsurance contracts written between 1974 through 1985 by companies acquired by Folksamerica predecessor companies (MONY Reinsurance Company and Christiania General)General Insurance Company). The exposures are mostly higher layer excess of loss treaty and facultative coverages with relatively low limits exposed for each claim. Folksamerica has a specialized unit that handles claims relating to A&E exposures. The issues presented by these types of claims require specialization, expertise and an awareness of the various trends and jurisdictional developments.developments in relevant jurisdictions. Net incurred loss activity for asbestos and environmental in the last two years was as follows:

                Net incurred loss and LAE activity

                 

                December 31,

                 

                Millions

                 

                2006

                 

                2005

                 

                Asbestos

                 

                $

                (0.1

                )

                $

                62.0

                 

                Environmental

                 

                (0.2

                )

                (3.4

                )

                Total

                 

                $

                (0.3

                )

                $

                58.6

                 


                Net incurred loss and LAE activity

                 December 31,
                 
                Millions

                 
                 2007
                 2006
                 
                Asbestos $51.6 $(.1)
                Environmental  11.6  (.2)
                  
                 
                 
                Total $63.2 $(.3)
                  
                 
                 

                In 2004, White Mountains Re experienced an increase in the number and amount of reported asbestos claims, primarily due to increased claim filings from uninjured claimants who may have been exposed to asbestos. This resulted in a change in its assumption regarding the level of projected future asbestos claims to be paid.        During 2005, White Mountains Re completed a detailed, ground upground-up asbestos study on all reported Folksamerica insureds that had over $250,000 of asbestos claims as well as a significant sample of all other insureds with reported asbestos claims of less than $250,000.exposure study. Comparing estimates generated by the study to Folksamerica exposed limits by underwriting year led to an increase of approximately $50 million in IBNR for asbestos during the third quarter of 2005.

                        During the fourth quarter of 2007, White Mountains Re completed another detailed, ground-up asbestos exposure study. This study was an update to the analysis first performed in 2005. The study analyzed potential exposure to loss of all insureds that had reported at least $250,000 in losses to Folksamerica through reinsurance contracts as of June 30, 2007. This analysis entailed examining total expected asbestos losses and LAE from a variety of information sources, including asbestos studies, data reported to Folksamerica and a review of historical public filings. The results of this analysis were compared to Folksamerica's reinsurance contract layers to derive an estimated expected loss. White Mountains Re also analyzed a significant sample of all other insureds that had reported losses of less than $250,000 and extrapolated the sample findings to the entire population.

                        In addition, Folksamerica has received notices of claims from a number of other insureds with reported loss amounts that have not exceeded the attachment points in the reinsurance contracts written by Folksamerica. Based on the claims activity related to those insureds since the 2005 study, White Mountains Re estimated its exposure to these insureds as well as to insureds that have not reported any claims to date.

                        In the study, White Mountains Re sought to include adequate provision for future reported claims, premises/operations coverage (in addition to products liability coverage), and future adverse court decisions. To estimate this provision, White Mountains Re measured the changes in individual insured estimates from the 2005 study to the 2007 study to estimate future reported losses. The combined effect of all these estimates resulted in an increase of $52 million in IBNR asbestos losses and LAE.

                        In the fourth quarter of 2007, White Mountains Re also reviewed Folksamerica's exposure to environmental losses using industry benchmarks known as "survival ratios". The survival ratio, computed as a company's reserves divided by the average of its last three years' net loss payments, indicates approximately how many more years of payments the current reserves can support, assuming future yearly payments are consistent with the average three-year historical levels. This analysis led to an increase of $11 million in IBNR for environmental losses and LAE in the fourth quarter of 2007.

                        White Mountains Re's net reserves for A&E losses were $163 million and $112 million at December 31, 2007 and 2006, respectively. White Mountains Re's A&E three-year survival ratio was approximately 13 years and 8 years at December 31, 2007 and 2006, respectively.


                        The following tables show gross and net loss and LAE payments for A&E exposures for the years ending December 31, 2000 through December 31, 2007:

                 
                 Asbestos paid loss and LAE
                 Environmental paid loss and LAE
                Millions

                Year ended December 31,

                 Gross
                 Net
                 Gross
                 Net
                2000 $4.7 $4.0 $2.3 $1.3
                2001  10.5  6.7  1.8  1.6
                2002  5.9  4.5  3.2  2.9
                2003  10.7  7.4  1.7  1.1
                2004  19.3  14.3  1.5  1.4
                2005  11.7  12.2  4.8  4.0
                2006  9.8  7.9  .6  .5
                2007  12.3  10.7  2.0  1.7
                  
                 
                 
                 

                Generally, White Mountains Re sets up claim files for each reported claim by each cedent for each individual insured. In many instances, a single claim notification from a cedent could involve several years and layers of coverage resulting in a file being set up for each involvement. Precautionary claim notices are submitted by the ceding companies in order to preserve their right to pursue coverage under the reinsurance contract. Such notices do not contain an incurred loss amount, accordingly,amount. Accordingly, an open claim file is not established. As of December 31, 2006,2007, White Mountains Re had approximately 1,1731,198 open claim files for asbestos and 512290 open claim files for environmental exposures.

                The costs associated with administering the underlying A&E claims by White Mountains Re’sRe's clients tend to be higher than non Anon-A&E claims due to generally higher legal costs incurred by ceding companies in connection with A&E claims ceded to White Mountains Re under the reinsurance contracts.

                  White Mountains Re A&E Claims Activity

                White Mountains Re’sRe's A&E claim activity for the last two years is illustrated in the table below.

                 

                 

                Year ended

                 

                 

                 

                December 31,

                 

                A&E Claims Activity

                 

                2006

                 

                2005

                 

                Asbestos

                 

                 

                 

                 

                 

                Total asbestos claims at the beginning of the year

                 

                1,339

                 

                1,401

                 

                Outgoing asbestos claims due to Sirius America divestiture

                 

                (20

                )

                 

                Incoming asbestos claims due to Mutual Service acquisition

                 

                45

                 

                 

                Asbestos claims reported during the year

                 

                186

                 

                223

                 

                Asbestos claims closed during the year

                 

                (377

                )

                (285

                )

                Total asbestos claims at the end of the year

                 

                1,173

                 

                1,339

                 

                Environmental

                 

                 

                 

                 

                 

                Total environmental claims at the beginning of the year

                 

                750

                 

                900

                 

                Incoming environmental claims due to Mutual Service acquisition

                 

                43

                 

                 

                Environmental claims reported during the year

                 

                46

                 

                65

                 

                Environmental claims closed during the year

                 

                (327

                )

                (215

                )

                Total environmental claims at the end of the year

                 

                512

                 

                750

                 

                Total

                 

                 

                 

                 

                 

                Total A&E claims at the beginning of the year

                 

                2,089

                 

                2,301

                 

                Outgoing A&E claims due to Sirius America divestiture

                 

                (20

                )

                 

                Incoming A&E claims due to Mutual Service acquisition

                 

                88

                 

                 

                A&E claims reported during the year

                 

                232

                 

                288

                 

                A&E claims closed during the year

                 

                (704

                )

                (500

                )

                Total A&E claims at the end of the year

                 

                1,685

                 

                2,089

                 

                 
                 Year ended December 31,
                 
                A&E Claims Activity

                 
                 2007
                 2006
                 
                Asbestos     
                Total asbestos claims at the beginning of the year 1,173 1,339 
                Outgoing asbestos claims due to Sirius America divestiture  (20)
                Incoming asbestos claims due to Stockbridge acquisition  45 
                Asbestos claims reported during the year 223 186 
                Asbestos claims closed during the year (198)(377)
                  
                 
                 
                Total asbestos claims at the end of the year 1,198 1,173 
                  
                 
                 
                Environmental     
                Total environmental claims at the beginning of the year 512 750 
                Incoming environmental claims due to Stockbridge acquisition  43 
                Environmental claims reported during the year 26 46 
                Environmental claims closed during the year (248)(327)
                  
                 
                 
                Total environmental claims at the end of the year 290 512 
                  
                 
                 
                Total     
                Total A&E claims at the beginning of the year 1,685 2,089 
                Outgoing A&E claims due to Sirius America divestiture  (20)
                Incoming A&E claims due to Stockbridge acquisition  88 
                A&E claims reported during the year 249 232 
                A&E claims closed during the year (446)(704)
                  
                 
                 
                Total A&E claims at the end of the year 1,488 1,685 
                  
                 
                 

                  Loss and LAE Reserves by Class of Business

                White Mountains Re establishes loss and LAE reserves that are estimates of amounts needed to pay claims and related expenses in the future for reinsured events that have already occurred. The estimation of net reinsurance loss and LAE reserves is subject to the same risk as the estimation of insurance loss and LAE reserves. In addition to those risk factors which give rise to inherent uncertainties in establishing insurance loss and LAE reserves, the inherent uncertainties of estimating such reserves are even greater for the reinsurer, due primarily to: (1) the claim-tail for reinsurers being further extended because claims are first reported to the original primary insurance company and then through one or more intermediaries or reinsurers, (2) the diversity of loss development patterns among different types of reinsurance treaties or facultative contracts, (3) the necessary reliance on the ceding companies for information regarding reported claims and (4) the differing reserving practices among ceding companies.

                As with insurance reserves, the process of estimating reinsurance reserves involves a considerable degree of judgment by management and, as of any given date, is inherently uncertain. Based on the above, such uncertainty may be larger relative to the reserve for a reinsurer compared to an insurance company, and may take a longer time to emerge.

                In order to reduce the potential uncertainty of loss reserve estimation, White Mountains Re obtains information from numerous sources to assist in the process. White Mountains Re’sRe's pricing actuaries devote considerable effort to understanding and analyzing a ceding company’scompany's operations and loss history during the underwriting of the business, using a combination of ceding company and industry statistics. Such statistics normally include historical premium and loss data by class of business, individual claim information for larger claims, distributions of insurance limits provided, loss reporting and payment patterns, and rate change history. This analysis is used to project expected loss ratios for each treaty during the upcoming contract period. These expected ultimate loss ratios are aggregated across all treaties and are input directly into the loss reserving process to generate the expected loss ratios that are used to estimate IBNR.

                Upon notification of a loss from a ceding company, White Mountains Re establishes case reserves, including LAE reserves, based upon White Mountains Re’sRe's share of the amount of reserves established by the ceding company and its independent evaluation of the loss. In cases where available information indicates that reserves established by the ceding company are inadequate, White Mountains Re establishes case reserves or IBNR in excess of its share of the reserves established by the ceding company. In addition, specific claim information reported by ceding companies or obtained through claim audits can alert us to emerging trends such as changing legal interpretations of coverage and liability, claims from unexpected sources or classes of business, and significant changes in the frequency or severity of individual claims. Such information is often used to supplement estimates of IBNR.

                As mentioned above, there can be a considerable time lag from the time a claim is reported to a ceding company to the time it is reported to the reinsurer. The lag can be several years in some cases. This lag can be due to a number of reasons, including the time it takes to investigate a claim, delays associated with the litigation process, the deterioration in a claimant’sclaimant's physical condition many years after an accident occurs, etc. In its loss reserving process, White Mountains Re assumes that such lags are predictable, on average, over time and therefore the lags are contemplated in the loss reporting patterns used in its actuarial methods. This means that, as a reinsurer, White Mountains Re must rely on such actuarial estimates for a longer period of time after reserves are first estimated than does a primary insurance company.

                Backlogs in the recording of assumed reinsurance can also complicate the accuracy of loss reserve estimation. As of December 31, 2006,2007, there were no significant backlogs related to the processing of assumed reinsurance information at White Mountains Re.

                White Mountains Re relies heavily on information reported by ceding companies, as discussed above. In order to determine the accuracy and completeness of such information, White Mountains Re underwriters, actuaries, and claims personnel perform audits of certain ceding companies where customary. Generally, ceding company audits are not customary outside the United States. In such cases, White Mountains Re reviews information from ceding companies for unusual or unexpected results. Any material findings are discussed with the ceding companies. White Mountains Re sometimes encounters situations where we determine that a claim presentation from a ceding company is not in accordance with contract terms. In these situations, White Mountains Re attempts to resolve the dispute directly with the ceding company. Most situations are resolved amicably and without the need for litigation or arbitration. However, in the infrequent situations where a resolution is not possible, White Mountains Re will vigorously defend its position in such disputes.


                White Mountains Re also obtains reinsurance whereby another reinsurer contractually agrees to indemnify White Mountains Re for all or a portion of the reinsurance risks underwritten by White Mountains Re. Such arrangements, where one reinsurer provides reinsurance to another reinsurer, are usually referred to as “retrocessional reinsurance”"retrocessional reinsurance" arrangements. White Mountains Re establishes estimates of amounts recoverable from retrocessional reinsurance in a manner consistent with the loss and LAE liability associated with reinsurance contracts offered to its customers (the “ceding companies”"ceding companies"), net of an allowance for uncollectible amounts, if any. Net reinsurance loss reserves represent loss and LAE reserves reduced by retrocessional reinsurance recoverable on unpaid losses.

                Although loss and LAE reserves are initially determined based on underwriting and pricing analyses, White Mountains Re regularly reviews the adequacy of its recorded reserves by using a variety of generally accepted actuarial methods, including historical incurred and paid loss development methods. If actual loss activity differs substantially from expectations, an adjustment to recorded reserves may be warranted. As time passes, loss reserve estimates for a given accident year will rely more on actual loss activity and historical patterns than on initial assumptions based on pricing indications.

                White Mountains Re’sRe's expected annual loss reporting assumptions are updated at least once a year, at year end.year. These assumptions are applied to year-end IBNR to generate expected reported losses for the subsequent year. Interpolation methods are applied to estimate quarterly reported losses, which are then compared to actual reported losses each quarter. Significant differences may result in a change in estimates or a revision in the loss reporting pattern. Expected loss ratios underlying the current accident year are updated quarterly, to reflect new business that is underwritten by the company.

                        In 2007, White Mountains Re recorded $9 million of net unfavorable development, which consisted of $63 million related to A&E exposures, $28 million of strengthening of certain of its U.S. casualty reserves and $7 million related to surety business. This adverse development was largely offset by favorable development of $91 million, primarily on property lines from prior accident years.

                        In 2005 and 2007, White Mountains Re changed its assumptions relating to asbestos reserves, as discussed above in the A&E section. During 2006, White Mountains Re increased its estimate for net losses from hurricanes Katrina, Rita, and Wilma by $86 million following the receipt of new claims information from several ceding companies and subsequent reassessment of ultimate loss exposures. The company also entered into an indemnity agreement with Olympus, which resulted in an additional $137 million in losses and loss expenses.LAE. Also in 2006, White Mountains Re increased prior year loss and LAE reserves by $55 million for casualty losses associated with the Risk Capital acquisition, primarily as a result of a detailed study of loss exposure by individual contract. Reserves for 2004 and prior years were decreased by $46 million at Sirius in 2006, as we haveWhite Mountains Re has seen lower than expected loss emergence across all lines of business and have reduced IBNR accordingly.

                In 2005,        White Mountains Re changed its assumptions relating to asbestos reserves, as discussed above in the A&E section. In 2004, White Mountains Re reduced its loss ratio assumptions for property and other short-tailed business written at Sirius in 2002 and 2003, resulting in a decrease of $35 million in loss reserves related to prior years. This was due to improved terms and conditions in reinsurance contracts written after the terrorist attacks of September 11, 2001, which had a greater impact on lowering loss ratios than had been expected in the original loss ratio assumptions. Also in 2004, White Mountains Re increased its estimates of prior year loss reserves by $55 million on long-tailed U.S. casualty contracts written between 1997 and 2001 at Folksamerica and Scandinavian Re. This was due to a higher than expected level of loss reporting, which caused White Mountains Re to raise its expected loss ratio assumptions and to lengthen the expected reporting tail for those contracts.

                White Mountains Re’sRe's net loss and LAE reserves by class of business at December 31, 20062007 and 20052006 were as follows:

                Net loss and LAE reserves by class of business

                 

                December 31, 2006

                 

                December 31, 2005

                 

                Millions

                 

                Case

                 

                IBNR

                 

                Total

                 

                Case

                 

                IBNR

                 

                Total

                 

                Liability (excluding A&E)

                 

                $

                544.9

                 

                $

                964.4

                 

                $

                1,509.3

                 

                $

                829.3

                 

                $

                782.9

                 

                $

                1,612.2

                 

                Property

                 

                332.3

                 

                196.1

                 

                528.4

                 

                357.7

                 

                342.2

                 

                699.9

                 

                Specialty

                 

                273.0

                 

                143.3

                 

                416.3

                 

                233.9

                 

                138.4

                 

                372.3

                 

                A&E

                 

                44.0

                 

                68.4

                 

                112.4

                 

                42.0

                 

                75.4

                 

                117.4

                 

                Total

                 

                $

                1,194.2

                 

                $

                1,372.2

                 

                $

                2,566.4

                 

                $

                1,462.9

                 

                $

                1,338.9

                 

                $

                2,801.8

                 

                Net loss and LAE reserves by class of business

                 December 31, 2007
                 December 31, 2006
                Millions

                 Case
                 IBNR
                 Total
                 Case
                 IBNR
                 Total
                Property catastrophe excess $224.6 $33.9 $258.5 $209.2 $61.5 $270.7
                Property other  142.7  73.8  216.5  177.8  78.7  256.5
                Casualty (excluding A&E)  458.2  553.6  1,011.8  507.0  646.7  1,153.7
                Accident & health  38.4  57.8  96.2  42.8  63.9  106.7
                Agriculture  4.5  62.7  67.2  4.6  51.7  56.3
                Aviation and space  80.0  30.4  110.4  76.4  28.0  104.4
                A&E  47.5  115.7  163.2  44.0  68.3  112.3
                Other  150.7  371.4  522.1  93.3  412.2  505.5
                  
                 
                 
                 
                 
                 
                 Total $1,146.6 $1,299.3 $2,445.9 $1,155.1 $1,411.0 $2,566.1
                  
                 
                 
                 
                 
                 

                        

                The actuarial methods described above are used to calculate a point estimate of loss and LAE reserves for each company within White Mountains Re. These point estimates are then aggregated to produce an actuarial point estimate for the entire segment. Once a point estimate is established, White Mountains Re’sRe's actuaries estimate loss reserve ranges to measure the sensitivity of the actuarial assumptions used to set the point estimates. These ranges are calculated using similar methods to the point estimate calculation, but with different expected loss ratio and loss reporting pattern assumptions. For the low estimate, more optimistic loss ratios and faster reporting patterns are


                assumed, while the high estimate uses more conservative loss ratios and slower reporting patterns. These variable assumptions are derived from historical variations in loss ratios and reporting patterns by class and type of business.

                The actuarial point estimate is management’smanagement's primary consideration in determining its best estimate of loss and LAE reserves. In making its best estimate, management also considers other qualitative factors that may lead to a difference between its best estimate of loss and LAE reserves and the actuarial point estimate. Typically, these factors exist when management and the company’scompany's actuaries conclude that there is insufficient historical incurred and paid loss information or that trends included in the historical incurred and paid loss information are unlikely to repeat in the future. These factors may include, among others, changes in the techniques used to assess underwriting risk, more accurate and detailed levels of data submitted with reinsurance applications, the uncertainty of the current reinsurance pricing environment, the level of inflation in loss costs, changes in ceding company reserving practices, and legal and regulatory developments. At December 31, 20062007 and 2005,2006, total carried reserves were 2.2%2.9% and 0.7%2.2% above the actuarial point estimate, respectively.

                The following table illustrates White Mountains Re’sRe's recorded net loss and LAE reserves and high and low estimates for those classes of business for which a range is calculated, at December 31, 2006.2007.

                Net loss and LAE reserves by class of business

                 

                December 31, 2006

                 

                Millions

                 

                Low

                 

                Recorded

                 

                High

                 

                Liability (excluding A&E)

                 

                $

                1,342

                 

                $

                1,509.3

                 

                $

                1,676

                 

                Property

                 

                503

                 

                528.4

                 

                553

                 

                Specialty

                 

                354

                 

                416.3

                 

                486

                 

                A&E

                 

                80

                 

                112.4

                 

                154

                 

                Total

                 

                $

                2,279

                 

                $

                2,566.4

                 

                $

                2,869

                 

                Net loss and LAE reserves by class of business

                 December 31, 2007
                Millions

                 Low
                 Recorded
                 High
                Property catastrophe excess $255 $258.5 $262
                Property other  192  216.5  245
                Casualty (excluding A&E)  794  1,011.8  1,149
                Accident & health  84  96.2  109
                Agriculture  60  67.2  71
                Aviation and space  94  110.4  131
                A&E  123  163.2  218
                Other  455  522.1  570
                  
                 
                 
                 Total $2,057 $2,445.9 $2,755
                  
                 
                 

                        

                The probability that ultimate losses will fall outside of the range of estimates by class of business is higher for each class of business individually than it is for the sum of the estimates for all classes taken together due to the effects of diversification. While White Mountains Re has not determined the statistical probability of actual ultimate losses falling within the range, management believes that it is reasonably likely that actual ultimate losses will fall within the ranges noted above because the ranges were developed by using generally accepted actuarial methods. Although management believes reserves for White Mountains Re are reasonably stated, ultimate losses may deviate, perhaps materially, from the recorded reserve amounts and could be above the high end of the range of actuarial projections.

                2. White Mountains Re Reinsurance Estimates

                There is a time lag from the point when premium and related commission and expense activity is recorded by a ceding company to the point when such information is reported by the ceding company, through its reinsurance intermediary, to White Mountains Re. This time lag can vary from one to several contractual reporting periods (i.e. quarterly/monthly). This lag is common in the reinsurance business, but slightly longer when a reinsurance intermediary is involved.

                As a result of this time lag in reporting, White Mountains Re estimates a portion of its written premium and related commissions and expenses. Given the nature of White Mountains Re’sRe's business, estimated premium balances, net of related commissions and expenses, comprise a large portion of total premium balances receivable. The estimation process begins by identifying which major accounts have not reported activity at the most recent period end. In general, premium estimates for excess of loss business are based on minimum deposit and premium information included in the contractual terms. For proportional business, White Mountains Re’sRe's estimates are derived based on a variety of factors and assumptions, including:from expected premium volume based on contractual terms or ceding company reports and other correspondence and communication with underwriters, intermediaries and ceding companies, prior reporting from the intermediary or ceding company and historical reporting patterns. companies. Once premium estimates are determined, related commission and expense estimates are derived using contractual terms.


                White Mountains Re closely monitors its estimation process on a quarterly basis and adjusts its estimates as more information and actual amounts become known. There is no assurance that the amounts estimated by White Mountains Re will not deviate from the amounts reported by the ceding company or reinsurance intermediary. Any such deviations are reflected in the results of operations when they become known.


                The following table summarizes White Mountains Re’sRe's premium estimates and related commissions and expenses:

                 

                December 31, 2006

                 

                 December 31, 2007

                Millions

                 

                Liability

                 

                Property

                 

                Specialty

                 

                Total

                 

                 Property Catastrophe Excess
                 Property Other
                 Casualty
                 Accident & Health
                 Agriculture
                 Aviation & Space
                 Other
                 Total

                Gross premium estimates

                 

                $

                86.7

                 

                $

                162.1

                 

                $

                158.4

                 

                $

                407.2

                 

                 $32.1 $78.3 $46.7 $68.9 $69.5 $44.8 $46.7 $387.0

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 
                 
                 
                 
                 
                 
                 

                Net premium estimates

                 

                $

                86.0

                 

                $

                93.7

                 

                $

                140.4

                 

                $

                320.1

                 

                 $28.4 $13.1 $46.6 $56.2 $69.5 $42.2 $45.3 $301.3

                Net commission and expense estimates

                 

                40.6

                 

                29.4

                 

                41.0

                 

                111.0

                 

                  3.3  27.4  22.8  23.0  5.6  7.8  12.2  102.1
                 
                 
                 
                 
                 
                 
                 
                 


                Net amount included in reinsurance balances receivable

                 

                $

                45.4

                 

                $

                64.3

                 

                $

                99.4

                 

                $

                209.1

                 

                 $25.1 $(14.3)$23.8 $33.2 $63.9 $34.4 $33.1 $199.2
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 December 31, 2006
                Millions

                 Property Catastrophe Excess
                 Property Other
                 Casualty
                 Accident & Health
                 Agriculture
                 Aviation & Space
                 Other
                 Total
                Gross premium estimates $25.9 $71.9 $95.9 $82.1 $51.1 $37.5 $42.8 $407.2
                  
                 
                 
                 
                 
                 
                 
                 
                Net premium estimates $23.2 $6.3 $95.1 $68.1 $51.0 $35.7 $40.7 $320.1
                Net commission and expense estimates  3.4  17.9  43.5  25.6  3.9  3.9  12.8  111.0
                  
                 
                 
                 
                 
                 
                 
                 
                Net amount included in reinsurance balances receivable $19.8 $(11.6)$51.6 $42.5 $47.1 $31.8 $27.9 $209.1
                  
                 
                 
                 
                 
                 
                 
                 

                        

                 

                December 31, 2005

                 

                Millions

                 

                Liability

                 

                Property

                 

                Specialty

                 

                Total

                 

                Gross premium estimates

                 

                $

                123.1

                 

                $

                245.0

                 

                $

                101.3

                 

                $

                469.4

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Net premium estimates

                 

                $

                111.2

                 

                $

                123.0

                 

                $

                77.5

                 

                $

                311.7

                 

                Net commission and expense estimates

                 

                38.3

                 

                26.0

                 

                25.5

                 

                89.8

                 


                Net amount included in reinsurance balances receivable

                 

                $

                72.9

                 

                $

                97.0

                 

                $

                52.0

                 

                $

                221.9

                 

                The net amounts recorded in reinsurance balances receivable may not yet be due from the ceding company at the time of the estimate since actual reporting from the ceding company has not yet occurred. Therefore, based on the process described above, White Mountains Re believes all of its estimated balances are collectible, and as such no allowance has been recorded.

                3. Reinsurance Transactions

                White Mountains’Mountains' insurance and reinsurance subsidiaries purchase reinsurance from time to time to protect their businesses from losses due to exposure aggregation, to manage their operating leverage ratios and to limit ultimate losses arising from catastrophic events. Amounts recoverable from reinsurers are estimated in a manner consistent with the claim liability associated with the reinsured policies. Amounts related to reinsurance contracts are recorded in accordance with SFAS No. 113, “Accounting"Accounting and Reporting for Reinsurance of Short-Duration and Long-Duration Contracts” (“Contracts" ("SFAS 113”113").

                        In connection with the OneBeacon Acquisition, Aviva caused OneBeacon to purchase reinsurance contracts with two reinsurance companies rated "AAA" ("Extremely Strong", the highest of twenty-one ratings) by Standard & Poor's and "A++" ("Superior", the highest of fifteen ratings) by A.M. Best. One is a reinsurance cover with NICO which entitles OneBeacon to recover up to $2.5 billion in ultimate loss and LAE incurred related to A&E claims arising from business written by its predecessor prior to 1992 and 1987, respectively and certain other latent exposures. As of December 31, 2007, OneBeacon has ceded estimated incurred losses of approximately $2.1 billion to NICO under the NICO Cover. The other contract is a reinsurance cover with GRC for up to $570 million of additional losses on all claims arising from accident years 2000 and prior. As of December 31, 2007, OneBeacon has ceded estimated incurred losses of $550 million to GRC under the GRC Cover. The NICO Cover and GRC Cover, which were contingent on and occurred contemporaneously with the OneBeacon Acquisition, were put in place in lieu of a seller guarantee of loss and LAE reserves and are therefore accounted for as a seller guarantee under GAAP in accordance with Emerging Issues Task Force Topic No. D 54. NICO and GRC are wholly-owned subsidiaries of Berkshire.


                The collectibility of reinsurance recoverables is subject to the solvency and willingness to pay of the reinsurer. The Company is selective in choosing its reinsurers, placing reinsurance principally with those reinsurers with a strong financial condition, industry ratings and underwriting ability. Management monitors the financial condition and ratings of its reinsurers on an ongoing basis. SeeNote 4 - “Third4—"Third Party Reinsurance” Reinsurance"in the accompanying Consolidated Financial Statements for additional information on White Mountains’Mountains' reinsurance programs.

                4. Purchase Accounting

                When White Mountains acquires another company, management must estimate the fair values of the assets and liabilities acquired, as prescribed by SFAS No. 141, “Business"Business Combinations." Certain assets and liabilities require little judgment to estimate their fair values, particularly those that are quoted on a market exchange, such as publicly-traded investment securities. Other assets and liabilities, however, require a substantial amount of judgment to estimate their fair values. The most significant of these is the estimation required to fair value loss and LAE reserves. White Mountains estimates the fair value of loss and LAE reserves obtained in an acquisition following the principles contained within FASB Statement of Financial Accounting Concepts No. 7: “Using"Using Cash Flow Information and Present Value in Accounting Measurements” (“Measurements" ("CON 7”7"). Under CON 7, the fair value of a particular asset or liability essentially contains five elements: (1) an estimate of the future cash flows,flows; (2) expectations about possible variations in the amount or timing of those cash flows; (3) the time value of money, represented by the risk-free rate of interest; (4) the


                price for bearing the uncertainty inherent in the asset or liability; and (5) other, sometimes unidentifiable, factors including illiquidity and market imperfections.

                White Mountains’Mountains' actuaries estimate the fair value of loss and LAE reserves obtained in an acquisition by taking the acquired company’scompany's recorded reserves and discounting them based on expected reserve payout patterns using the current risk-free rate of interest. Then, White Mountains’Mountains' actuaries develop additional cash flow scenarios that use different payout and ultimate reserve assumptions deemed to be reasonably possible based upon the inherent uncertainties present in determining the amount and timing of payment of such reserves. In each scenario, the risk-free rate of interest is used to discount future cash flows. These scenarios are put in a statistical model that assigns a probability to each cash flow scenario. White Mountains’Mountains' actuaries then choose the scenario that best represents the price for bearing the uncertainty inherent within the acquired company’scompany's recorded reserves. The “price”"price" for bearing the uncertainty inherent within the acquired company’scompany's reserves is measured as the difference between the selected cash flow scenario and the expected cash flow scenario. The scenario selected has typically been between 1.5 and 2 standard deviations from the expected cash flow outcome. The fair value of the acquired company’scompany's loss and LAE reserves is determined to be the sum of the expected cash flow scenario (i.e., the acquired company’scompany's discounted loss and LAE reserves) and the uncertainty “price”"price".

                The difference between an acquired company’scompany's loss and LAE reserves and White Mountains’Mountains' best estimate of the fair value of such reserves at the acquisition date is amortized ratably over the payout period of the acquired loss and LAE reserves. Historically, the fair value of an acquired company’scompany's loss and LAE reserves has been less than its nominal reserves at acquisition. Accordingly, the amortization has been and will continue to be recorded as an expense on White Mountains’Mountains' income statement until fully amortized.


                FORWARD-LOOKING STATEMENTS

                The information contained in this report may contain “forward-looking statements”"forward-looking statements" within the meaning of Section 27A of the Securities Act of 1933 and Section 21 E21E of the Securities Exchange Act of 1934. All statements, other than statements of historical facts, included or referenced in this report which address activities, events or developments which White Mountains expects or anticipates will or may occur in the future are forward-looking statements. The words “will”"will", “believe,” “intend,” “expect,” “anticipate,” “project,” “estimate,” “predict”"believe," "intend," "expect," "anticipate," "project," "estimate," "predict" and similar expressions are also intended to identify forward-looking statements. These forward-looking statements include, among others, statements with respect to White Mountains’:Mountains:

                ·

                  growth in book value per share or return on equity;

                  ·

                  business strategy;

                  ·

                  financial and operating targets or plans;

                  ·

                  incurred losses and the adequacy of its lossesloss and LAE reserves and related reinsurance;

                  ·

                  projections of revenues, income (or loss), earnings (or loss) per share, dividends, market share or other financial forecasts;

                  ·

                  expansion and growth of its business and operations; and

                  ·

                  future capital expenditures.

                These statements are based on certain assumptions and analyses made by White Mountains in light of its experience and perception of historical trends, current conditions and expected future developments, as well as other factors believed to be appropriate in the circumstances. However, whether actual results and developments will conform with its expectations and predictions is subject to a number of risks and uncertainties that could cause actual results to differ materially from expectations, including:

                ·

                  the risks discussed inassociated with Item 1A of this Report on Form 10-K;

                  ·

                  claims arising from catastrophic events, such as hurricanes, earthquakes, floods or terrorist attacks;

                  the continued availability of capital and financing;

                  ·

                  general economic, market or business conditions;

                  ·

                  business opportunities (or lack thereof) that may be presented to it and pursued;

                  ·

                  competitive forces, including the conduct of other property and casualty insurers and reinsurers;

                  ·

                  changes in domestic or foreign laws or regulations, or their interpretation, applicable to White Mountains, its competitors or its clients;

                  ·

                  an economic downturn or other economic conditions adversely affecting its financial position;

                  recorded loss reserves subsequently proving to have been inadequate; and

                  ·

                  other factors, most of which are beyond White Mountains’Mountains' control.

                Consequently, all of the forward-looking statements made in this report are qualified by these cautionary statements, and there can be no assurance that the actual results or developments anticipated by White Mountains will be realized or, even if substantially realized, that they will have the expected consequences to, or effects on, White Mountains or its business or operations. White Mountains assumes no obligation to update publicly any such forward-looking statements, whether as a result of new information, future events or otherwise.


                Item 7A.    Quantitative and Qualitative Disclosures About Market Risk

                White Mountains’Mountains' consolidated balance sheet includes a substantial amount of assets and liabilities whose fair values are subject to market risk. The term market risk refers to the risk of loss arising from adverse changes in interest rates and other relevant market rates and prices. Due to White Mountains’Mountains' sizable balances of interest rate sensitive instruments, market risk can have a significant effect on White Mountains’Mountains' consolidated financial position.


                Interest Rate Risk

                Fixed Maturity Portfolio.In connection with the Company’sCompany's consolidated insurance and reinsurance subsidiaries, White Mountains invests in interest rate sensitive securities, primarily debt securities. White MountainsMountains' strategy is to purchase fixed maturity investments that are attractively priced in relation to perceived credit risks. White Mountains’Mountains' fixed maturity investments are held as available for sale in accordance with SFAS No. 115, “Accounting"Accounting for Certain Investments in Debt and Equity Securities” (“Securities" ("SFAS 115”115"), whereby these investments are carried at fair value on the balance sheet with net unrealized gains or losses reported net of tax in a separate component of common shareholders’shareholders' equity. White Mountains generally manages its interest rate risk associated with its portfolio of fixed maturity investments by monitoring the average duration of the portfolio, which allows White Mountains to achieve an adequate yield without subjecting the portfolio to an unreasonable level of interest rate risk. White Mountains’Mountains' fixed maturity portfolio is comprised of primarily investment grade corporate securities, U.S. government and agency securities, municipal obligations and mortgage-backed securities (e.g., those receiving an investment grade rating from Standard & Poor’sPoor's or Moody’s)Moody's).

                Increases and decreases in prevailing interest rates generally translate into decreases and increases in fair values of fixed maturity investments, respectively. Additionally, fair values of interest rate sensitive instruments may be affected by the creditworthiness of the issuer, prepayment options, relative values of alternative investments, the liquidity of the instrument and other general market conditions.

                The table below summarizes the estimated effects of hypothetical increases and decreases in market interest rates on White Mountains’Mountains' fixed maturity portfolio and fixed maturity investments in the pension plan.

                ($ in millions)

                 

                Fair Value at
                December 31, 2006

                 

                Assumed Change in
                Relevant Interest
                Rate

                 

                Estimated Fair Value
                After Change in
                Interest Rate

                 

                After-Tax Increase
                (Decrease) in
                Carrying Value

                 

                 Fair Value at December 31, 2007
                 Assumed Change in Relevant Interest Rate
                 Estimated Fair Value After Change in Interest Rate
                 After-Tax Increase (Decrease) in Carrying Value
                 

                Fixed maturity investments

                 

                $

                7,911.5

                 

                100 bp decrease

                 

                $

                8,058.7

                 

                $

                98.0

                 

                 $7,371.5 100 bp decrease $7,523.4 $104.3 

                 

                 

                 

                50 bp decrease

                 

                7,988.2

                 

                51.1

                 

                   50 bp decrease 7,444.7 50.2 

                 

                 

                 

                50 bp increase

                 

                7,837.6

                 

                (49.2

                )

                   50 bp increase 7,280.7 (62.6)

                 

                 

                 

                100 bp increase

                 

                7,759.6

                 

                (101.1

                )

                   100 bp increase 7,195.4 (121.2)

                Pension fixed maturity investments

                 

                $

                285.1

                 

                100 bp decrease

                 

                $

                293.6

                 

                $

                5.6

                 


                 

                $

                40.9

                 

                100 bp decrease

                 

                $

                42.3

                 

                $

                ..9

                 

                 

                 

                 

                50 bp decrease

                 

                289.3

                 

                2.8

                 

                   50 bp decrease 41.6 .5 

                 

                 

                 

                50 bp increase

                 

                280.8

                 

                (2.8

                )

                   50 bp increase 40.2 (.5)

                 

                 

                 

                100 bp increase

                 

                276.5

                 

                (5.5

                )

                   100 bp increase 39.5 (.9)

                Long-term obligations.As of December 31, 2006,2007, White Mountains’Mountains' interest and dividend bearing long-term obligations consisted primarily of the Fund American Senior Notes, WMRe Senior Notes, the WMRe Preference Shares and the Berkshire Preferred Stock, and the Zenith Preferred Stock obligations, which have fixed interest and dividend rates. As a result, White Mountains’Mountains' exposure to interest rate risk resulting from variable interest rate obligations is limited to the $320 million that it had drawn under the WTM Bank Facilitywas insignificant as of December 31, 2006.2007.


                The Senior Notes were issued in 2003 and mature on May 15, 2013. At December31, 2006,following table summarizes the fair value of the Senior Notes was approximately $693 million, which compared to aand carrying value of $699 million. The Berkshire Preferred Stock and Zenith Preferred Stock obligations were issued in 2001 and mature on May 31, 2008 and May 31, 2011, respectively. AtWhite Mountains' financial instruments as of December 31, 2006, the fair values of the Berkshire Preferred Stock and Zenith Preferred Stock obligations were approximately $320 million and $21 million, respectively, which compared to carrying values of $242 million and $20 million, respectively.2007:

                 
                 December 31, 2007
                Millions

                 Fair Value
                 Carrying Value
                Senior Notes $703.2 $698.9
                WMRe Senior Notes  398.3  398.9
                WMRe Preference Shares(1)  219.4  250.0
                Berkshire Preferred Stock  307.0  278.3
                  
                 

                    (1)
                    WMRe Preference Shares are recorded as minority interest.

                The fair values of these obligations were estimated by discounting future cash flows using current market rates for similar obligations or using quoted market prices.


                Mortgage Note on Real Estate Owned.    In December 2005, OneBeacon entered into a $41 million, 18-year mortgage note, which has a variable interest rate based upon the lender's 30-day LIBOR rate, to purchase land and its U.S. headquarters building in Canton, Massachusetts. As of December 31, 2007, OneBeacon had drawn down the entire $41 million available under the mortgage note. Repayment will commence on January 31, 2009.

                        Concurrent with entering into the mortgage note, OneBeacon also entered into an interest rate swap to hedge its exposure to variability in the interest rate on the mortgage note. The notional amount of the swap is equal to the debt outstanding on the mortgage note and will be adjusted to match the drawdowns and repayments on the mortgage note so that the principal amount of the mortgage note and the notional amount of the swap are equal at all times. Under the terms of the swap, OneBeacon pays a fixed interest rate of approximately 6% and receives a variable interest rate based on the same LIBOR index used for the mortgage note. As a result, OneBeacon's exposure to interest rate risk resulting from variable interest rate obligations was insignificant as of December 31, 2007.

                Equity Price Risk

                The carrying values of White Mountains’Mountains' common equity securities and its other investments are based on quoted market prices or management’smanagement's estimates of fair value (which is based, in part, on quoted market prices) as of the balance sheet date. Market prices of common equity securities, in general, are subject to fluctuations which could cause the amount to be realized upon sale or exercise of the instruments to differ significantly from the current reported value. The fluctuations may result from perceived changes in the underlying economic characteristics of the investee, the relative price of alternative investments, general market conditions and supply and demand imbalances for a particular security.

                Foreign Currency Exchange Risk

                White Mountains’Mountains' foreign assets and liabilities are valued using period-end exchange rates and its foreign revenues and expenses are valued using average exchange rates. Foreign currency exchange rate risk is the risk that White Mountains will incur losses on a U.S. dollar basis due to adverse changes in foreign currency exchange rates.

                At December 31, 2006,2007, OneBeacon held approximately $259$241 million in bonds denominated in foreign currencies, mostly those denominated in British Pounds and Australian dollars. Assuming a hypothetical 10% increase or decrease in the rate of exchange from the British Pound and Australian dollar to the U.S. dollar as of December 31, 2006,2007, the carrying value of OneBeacon’sOneBeacon's foreign currency-denominated bond portfolio would have respectively decreased or increased by approximately $26$24 million.

                The functional currency of Sirius International is the Swedish Krona. Assuming a hypothetical 10% increase or decrease in the rate of exchange from the Swedish Krona to the U.S. dollar as of December 31, 2006,2007, the carrying value of White Mountains’Mountains' net assets denominated in Swedish KronorKrona would have respectively decreased or increased by approximately $58$62 million.

                Weather Derivative Risk

                Weather derivatives, which can be structured as either swaps or options, are typically purchased by corporations and governments exposed to volatility in earnings due to variable weather. Weather derivatives are products with financial settlements linked to an underlying index that measures a quantifiable weather element such as temperature, precipitation, snowfall and windspeed, typically over the course of a six-month summer or winter season.

                        Weather contingent derivative products are weather derivatives with an additional commodity trigger. Due to the dual trigger nature, weather contingent products are usually in the form of a call or put option. For example, a temperature contingent gas call may pay a client if temperatures are colder than an agreed upon trigger and natural gas prices are above a second trigger.


                        Galileo manages its exposure to weather and market risks based on guidelines established by senior management. Galileo manages its weather and weather contingent portfolio through the employment of a variety of strategies. These strategies include geographical diversification of risk exposures and economic hedging within the over-the-counter and exchange traded weather and commodity derivative markets. Additionally, Galileo may economically hedgeshedge protions of its risk exposure by buying and selling similar weather risk contracts with different counterparties. For example, Galileo may sell an option to protect a customer if it becomes too cold in a certain location and then purchase an option from another counterparty that pays Galileo if it becomes too cold in that same location. Galileo may also diversifiesdiversify its risk exposure by entering into contracts that protect different clients with opposite exposures to the same quantifiable weather element. For example, Galileo may sell an option to protect a customer if it becomes too cold in a certain location and then sell another option that protects a different customer if it becomes too warm in that same location. Risk management is undertaken on a product portfolio-wide basis, to maintain a portfolio that Galileo believes is well diversified and that remains within the aggregate risk tolerance established by senior management.

                Galileo uses value-at-risk (“VaR”("VaR") analysis to monitor the risks associated with its weather derivative contracts. VaR is a tool that measures the potential loss that could occur over a defined period of time, calculated at a given statistical confidence level. Galileo’sGalileo's portfolio VaR analyses are calculated using a Monte Carlo simulation model that uses historical weather data, actual weather data since each contract’scontract's inception, forecasted weather conditions and prevailing market rates as inputs. Galileo performs a VaR analysis for each of its portfolios using both a seasonal and 20-day holding period. The average, low and high of amounts produced by Galileo’sGalileo's 20 day VaR analyses performed during the period ended December 31, 2007, calculated at a 99% confidence level, were approximately $4 million, $1 million, and $9 million, respectively. The average, low and high of amounts produced by Galileo's 20 day VaR analyses performed during the period ended December 31, 2006, calculated at a 99% confidence level, were approximately $3 million, zero, and $8 million, respectively. White Mountains did not offer weather risk management products prior to 2006.


                Variable Annuity Guarantee Risk

                White Mountains entered into an agreement to reinsure death and living benefit guarantees associated with certain variable annuities issued in Japan, commencing September 1, 2006.Japan. The reinsurance agreement assumes risk related to a shortfall between the account value and the guaranteed value that must be paid by the ceding company to an annuitant or to an annuitant’sannuitant's beneficiary in accordance with the underlying annuity contracts. Generally, the liabilities associated with these guarantees increase with declines in the equity markets, interest rates and currencies against the Japanese Yen, as well as with increases in market volatilities. The liability is also affected by annuitant-related actuarial assumptions, including surrender and mortality rates. At December 31, 2006,2007, the total liability for the reinsured variable annuity guarantees was $(14)$13 million.

                White Mountains purchases derivative instruments, including futures and over-the counter option contracts on interest rates, major equity indices, and foreign currencies, to mitigate the risks associated with changes in the fair value of the reinsured variable annuity guarantees. At December 31, 2006,2007, the fair value of these derivative instruments was $21 million and had an inception to date loss of $16$44 million.

                White Mountains measures its net exposure to changes in relevant interest rates, foreign exchange rates and equity markets on a daily basis and adjusts its economic hedge positions within risk guidelines established by senior management. At December 31, 2006,2007, White Mountains’Mountains' modeled net exposure to a 10% change in each of these factors were as follows:

                 

                 

                ($ in millions)

                 

                 

                 

                 

                 

                 

                 

                Foreign Exchange Rates

                 

                Change

                 

                Equity Markets

                 

                Interest Rates

                 

                Against the Japanese Yen

                 

                + 10 Percent

                 

                $

                .3

                 

                $

                .4

                 

                $

                (1.5

                )

                -10 Percent

                 

                (1.8

                )

                (.3

                )

                (4.4

                )

                 
                 ($ in millions)
                 
                Change

                 Equity Markets
                 Interest Rates
                 Foreign Exchange Rates Against the Japanese Yen
                 
                +10 Percent $ $1.0 $(2.1)
                –10 Percent  (3.0) (1.0) (4.4)

                White Mountains also monitors the effects of annuitant-related experience against actuarial assumptions (including surrender and mortality rates) on a weekly basis and adjusts relevant assumptions and economic hedge positions if required. While White Mountains actively manages its economic hedge positions, several factors, including policyholder behavior and mismatches between underlying variable annuity funds and the hedge indices, may result in economic hedge ineffectiveness.


                Item 8.    Financial Statements and Supplementary Data

                The financial statements and supplementary data have been filed as a part of this Annual Report on Form 10-K as indicated in the Index to Consolidated Financial Statements and Financial Statement Schedules appearing on page 97104 of this report.

                Item 9.Changes in and Disagreements With Accountants on Accounting and Financial Disclosure

                None.

                        None.

                Item 9A.    Controls and Procedures

                The Principal Executive Officer (“PEO”("PEO") and the Principal Financial Officer (“PFO”("PFO") of White Mountains have evaluated the effectiveness of its disclosure controls and procedures (as defined in Rule 13a-1 5(e)13a-15(e) of the Exchange Act) as of December 31, 2006.2007. Based on that evaluation, the PEO and PFO have concluded that White Mountains’Mountains' disclosure controls and procedures are adequate and effective.

                The PEO and the PFO of White Mountains have evaluated the effectiveness of its internal control over financial reporting as of December 31, 2006.2007. Based on that evaluation, the PEO and PFO have concluded that White Mountains’Mountains' internal control over financial reporting is effective. Management’sManagement's annual report on internal control over financial reporting is included on page F-97F-66 of this report. The attestation report on management’s assessmentthe effectiveness of itsour internal control over financial reporting by PricewaterhouseCoopers LLP is included on pages F-94 through F-95page F-67 of this report.


                There has been no change in White Mountains’Mountains' internal controls over financial reporting that occurred during the fourth quarter of 20062007 that has materially affected, or is reasonably likely to materially affect White Mountains’Mountains' internal control over financial reporting.

                Item 9B.    Other Information

                None.


                PART III

                Item 10.    Directors, Executive Officers and Corporate Governance

                Reported under the captions “The"The Board Of Directors”Directors", “Section"Section 16(a) Beneficial Ownership Reporting Compliance”Compliance" and “Corporate Governance - "Corporate Governance—Committees of the Board - Board—Audit Committee”Committee" in the Company’s 2007Company's 2008 Proxy Statement, herein incorporated by reference, and under the caption “Executive"Executive Officers of the Registrant”Registrant" in Part I of this Annual Report on Form 10-K.

                The Company’sCompany's Code of Business Conduct, which applies to all directors, officers and employees in carrying out their responsibilities to and on behalf of the Company, is available atwww.whitemountains.com and is included as Exhibit 14 to the Company’sCompany's 2004 Annual Report on Form 10-K. The Company’sCompany's Code of Business Conduct is also available in print free of charge to any shareholder upon request.

                There have been no material changes to the procedures by which shareholders may recommend nominees to the Company’sCompany's Board of Directors. The procedures for shareholders to nominate directors are reported under the caption “Corporate Governance - "Corporate Governance—Committees of the Board - Board—Nominating and Governance Committee”Committee" in the Company’s 2007Company's 2008 Proxy Statement, herein incorporated by reference.

                Item 11.    Executive Compensation

                Reported under the captions “Executive Compensation”"Executive Compensation" and “Corporate Governance - "Corporate Governance—Compensation Committee Interlocks and Insider Participation”Participation" in the Company’s 2007Company's 2008 Proxy Statement, herein incorporated by reference.


                Item 12.    Security Ownership of Certain Beneficial Owners and Management and Related Stockholder Matters

                Reported under the captions “Voting"Voting Securities and Principal Holders Thereof”Thereof" and “Equity"Equity Compensation Plan Information” Information" in the Company’s 2007Company's 2008 Proxy Statement, herein incorporated by reference.

                Item 13.    Certain Relationships, Related Transactions and Director Independence

                Reported under the caption “Transactions"Transactions with Related Persons, Promoters and Certain Control Persons”Persons" and “Corporate Governance - "Corporate Governance—Director Independence”Independence" in the Company’s 2007Company's 2008 Proxy Statement, herein incorporated by reference.

                Item 14.    Principal AccountantAccounting Fees and Services

                Reported under the caption “Principal"Principal Accountant Fees and Services”Services" in the Company’s 2007Company's 2008 Proxy Statement, herein incorporated by reference.



                PART IV

                Item 15.    Exhibits and Financial Statement Schedules

                  a.     Documents Filed as Part of the Report

                The financial statements and financial statement schedules and reports of independent auditors have been filed as part of this Annual Report on Form 10-K as indicated in the Index to Consolidated Financial Statements and Financial Statement Schedules appearing on page 97104 of this report. A listing of exhibits filed as part of the report appear on pages 94101 through 95102 of this report.


                  93




                  b.     Exhibits

                Exhibit number
                number


                Name


                2

                Plan of Reorganization (incorporated by reference herein to the CompanysCompany's Registration Statement on S-4 (No. 333-87649) dated September 23, 1999)

                3.1

                Memorandum of Continuance of the Company (incorporated by reference herein to Exhibit (3)(I) of the CompanysCompany's Current Report on Form 8-K dated November 1, 1999)

                3.2

                Bye-Laws of the Company (incorporated by reference herein to Annex III of the CompanysCompany's Registration Statement on Form S-4 (No. 333-87649) dated September 23, 1999)

                4

                4.1

                Amended and Restated Certificate of Designation of Series A Preferred Stock of Fund American (incorporated by reference herein to Exhibit 99.1 of the CompanysCompany's Report on Form 8-K dated December 3, 2004)

                10.1

                4.2

                Form of Senior Indenture (incorporated by reference herein to the Company's Registration Statement on S-3 (No. 333-88352) dated July 17, 2003)
                4.3

                Fiscal Agency Agreement between White Mountains Re Group, Ltd. as Issuer and The Bank of New York as Fiscal Agent (incorporated by reference herein to Exhibit 4.1 of the Company's Report on Form 8-K dated March 14, 2007)

                4.4Certificate of Designation, setting forth the designations, powers, preferences and rights of the WMRe Preference Shares (incorporated by reference herein to Exhibit 3.1 of the Company's Report on Form 8-K dated May 29, 2007)
                10.1Amendment Agreement dated as of November 30, 2004, between General Reinsurance Corporation, a Delaware corporation, the Company and Fund American (incorporated by reference herein to Exhibit 99.2 of the CompanysCompany's Report on Form 8-K dated December 3, 2004)

                10.2

                Keep-Well Agreement, dated as of November 30, 2004, by and between the Company and Fund American (incorporated by reference herein to Exhibit 99.3 of the CompanysCompany's Report on Form 8-K dated December 3, 2004)

                10.3

                $500,000,000475,000,000 Credit Agreement, dated November14, 2006June 19, 2007 among the Company, and White Mountains Re Group, Ltd., as the Borrowers,Borrower, Bank of America, N.A., as Administrative Agent, Swing Line Lender and Issuing Lender, and the other lenders party hereto. (*)

                (incorporated by reference herein to Exhibit 10.2 of the Company's Report on Form 10-Q dated August 2, 2007)

                10.4

                $75,000,000 Credit Agreement, dated as of November14,November 14, 2006 among Fund American as the Borrower, OneBeacon Insurance Group, Ltd., as Parent, Bank of America, N.A., as Administrative Agent, Swing Line Lender and Issuing Lender, and the other lenders party hereto. (*)

                (incorporated by reference herein to Exhibit 10.4 of the Company's 2006 Annual Report on Form 10-K)

                10.5

                Adverse Development Agreement of Reinsurance No. 8888 between Potomac Insurance Company and GRC dated April 13, 2001 (incorporated by reference herein to Exhibit 99(m) of the CompanysCompany's Report on Form 8-K dated June 1,2001)

                1, 2001)

                10.6

                Adverse Development Agreement of Reinsurance between NICO (and certain of its affiliates) and Potomac Insurance Company dated April 13, 2001 and related documents (incorporated by reference herein to Exhibits 99(n)99 (n), 99(o), 99(p) and 99(q) of the CompanysCompany's Report on Form 8-K dated June 1, 2001)

                10.7

                Subscription Agreement among Berkshire, Fund American and the Registrant dated May 30, 2001 (incorporated by reference herein to Exhibits 99(t) of the CompanysCompany's Report on Form 8-K dated June 1, 2001)

                10.8

                Master Agreement by and among the Company, OneBeacon and Liberty Mutual including the Liberty RRA and related documents (incorporated by reference herein to Exhibits 99(d), 99(e), 99(f), 99(g) and 99(h) of the CompanysCompany's Report on Form 8-K dated November 1, 2001)

                10.9

                Investment Management Agreement between Prospector Partners, LLC and White Mountains Advisors LLC (incorporated by reference herein to Exhibit 99.1 of the CompanysCompany's Report on Form 8-K dated June 20, 2005)

                10.10

                Amendment to the Investment Management Agreement between Prospector Partners, LLC and White Mountains Advisors, LLC dated February 23, 2006 (incorporated by reference herein to the CompanysCompany's Report on Form 8-K dated February 28, 2006)

                10.11

                Investment Management Agreement between Prospector Partners, LLC and OneBeacon dated November14,November 14, 2006 (*)

                (incorporated by reference herein to Exhibit 10.11 of the Company's 2006 Annual Report on Form 10-K)

                10.12

                Consulting Letter Agreement between Prospector Partners, LLC and White Mountains Advisors LLC (incorporated by reference herein to Exhibit 99.2 of the CompanysCompany's Report on Form 8-K dated June 20, 2005)

                10.13

                Folksamerica Holding Company, Inc. Voluntary Deferred Compensation Plan (incorporated by reference herein to Exhibit 10.14 of the CompanysCompany's 2004 Annual Report on Form 10-K)

                10.14

                Folksamerica Holding Company, Inc. Deferred Benefit Plan (incorporated by reference herein to Exhibit 10.15 of the CompanysCompany's 2004 Annual Report on Form 10-K)

                10.15

                White Mountains Long-Term Incentive Plan (*)

                (incorporated by reference herein to Exhibit 10.15 of the Company's 2006 Annual Report on Form 10-K)

                Exhibit number

                Name

                10.16

                White Mountains Bonus Plan (incorporated by reference herein to Exhibit 10.17 of the CompanysCompany's 2004 Annual Report on Form 10-K)

                10.17

                The CompanysCompany's Voluntary Deferred Compensation Plan (incorporated by reference herein to Exhibit 4(c) of the CompanysCompany's Report on Form S-8 dated October 19, 1999)

                10.18

                White Mountains Insurance Group Deferred Compensation Plan (incorporated by reference herein to Exhibit 10.14 of the CompanysCompany's 2003 Annual Report on Form 10-K)

                10.19

                Fund American Deferred Compensation Plan (incorporated by reference herein to Exhibit 10.15 of the CompanysCompany's 2003 Annual Report on Form 10-K)


                10.20

                OneBeacon Performance Unit Plan (*)

                (incorporated by reference herein to Exhibit 10.20 of the Company's 2006 Annual Report on Form 10-K)

                10.21

                OneBeacon Insurance 2006 Management Incentive Plan (*)

                (incorporated by reference herein to Exhibit 10.21 of the Company's 2006 Annual Report on Form 10-K)

                10.22

                OneBeacon Insurance Deferred Compensation Plan (incorporated by reference herein to Exhibit 10.18 of the CompanysCompany's 2003 Annual Report on Form 10-K)

                10.23

                OneBeacon Phantom WTM Share Plan (*)

                (incorporated by reference herein to Exhibit 10.23 of the Company's 2006 Annual Report on Form 10-K)

                10.24

                OneBeacon Long-Term Incentive Plan (*)

                (incorporated by reference herein to Exhibit 10.24 of the Company's 2006 Annual Report on Form 10-K)

                10.25

                OneBeacon Insurance Group, Ltd. Non-Qualified Stock Option Agreement for T. Michael Miller (*)

                (incorporated by reference herein to Exhibit 10.25 of the Company's 2006 Annual Report on Form 10-K)

                10.26

                Amended and Restated Revenue Sharing Agreement among John D. Gillespie, Fund American Companies, Inc. and Folksamerica Reinsurance Company (incorporated by reference herein to Exhibit 10.26 of the CompanysCompany's 2004 Annual Report on Form 10-K)

                11

                Statement Re Computation of Per Share Earnings (**)

                12

                Statement Re Computation of Ratio of Earnings to Fixed Charges (*)

                14

                The CompanysCompany's Code of Business Conduct, which applies to all directors, officers and employees in carrying out their responsibilities to and on behalf of the Company (incorporated by reference herein to Exhibit 14 of the CompanysCompany's 2004 Annual Report on Form 10-K)

                21

                Subsidiaries of the Registrant (*)

                23

                Consent of PricewaterhouseCoopers LLP dated February 28, 200729, 2008 (*)

                24

                Powers of Attorney (*)

                31.1

                Principal Executive Officer Certification Pursuant to Rule 13a-14 (a) of the Securities Exchange Act of 1934 (*)

                31.2

                Principal Financial Officer Certification Pursuant to Rule 13a-14 (a) of the Securities Exchange Act of 1934 (*)

                32.1

                Principal Executive Officer Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (*)

                32.2

                Principal Financial Officer Certification Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of the Sarbanes-Oxley Act of 2002 (*)

                99

                Text entitled Non-Asbestos and Environmental Reserves under the caption Loss and Loss Adjustment Expense Reserves (incorporated by reference herein to pages 31 through 43 of the Companys Form S-3 dated March 14, 2003)


                (*)
                Included herein.



                (**)
                Not included herein as the information is contained elsewhere within report. See Note 1 of the Notes to Consolidated Financial Statements.

                  c.     Financial Statement Schedules

                The financial statement schedules and report of independent registered public accounting firm have been filed as part of this Annual Report on Form 10-K as indicated in the Index to Consolidated Financial Statements and Financial Statement Schedules appearing on page 97104 of this report.


                95




                SIGNATURES


                SIGNATURES

                Pursuant to the requirements of Section 13 or 15(d) of the Securities Exchange Act of 1934, the Company has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

                WHITE MOUNTAINS INSURANCE GROUP, LTD.


                Date: February 28, 2007

                29, 2008

                By:



                By:


                /s/  
                J. BRIAN PALMER


                J. Brian Palmer
                Chief Accounting Officer

                Pursuant to the requirements of the Securities Exchange Act of 1934, this report has been signed below by the following persons on behalf of the Company and in the capacities and on the dates indicated.

                Signature


                Title


                Date








                /s/  
                RAYMOND BARRETTE


                Raymond Barrette



                Chairman and CEO

                February 28, 2007

                Raymond Barrette


                (Principal Executive Officer)



                February 28, 2008


                BRUCE R. BERKOWITZBERKOWITZ*


                *

                Director

                February 28, 2007

                Bruce R. Berkowitz



                Director



                February 28, 2008


                YVES BROUILLETTE*


                Yves Brouillette


                Director


                February 28, 2008

                HOWARD L. CLARK, JR.*

                Director

                February 28, 2007


                Howard L. Clark, Jr.



                Director



                February 28, 2008


                ROBERT P. COCHRANCOCHRAN*


                *

                Director

                February 28, 2007

                Robert P. Cochran



                Director



                February 28, 2008


                MORGAN W. DAVISDAVIS*


                *

                Director

                February 28, 2007

                Morgan W. Davis



                Director



                February 28, 2008

                STEVEN E. FASS*

                Director

                February 28, 2007

                Steven E. Fass


                A. MICHAEL FRINQUELLIFRINQUELLI*


                *

                Director

                February 28, 2007

                A. Michael Frinquelli



                Director



                February 28, 2008


                /s/  
                DAVID T. FOY


                David T. Foy



                Executive Vice President and CFO

                February 28, 2007

                David T. Foy


                (Principal Financial Officer)



                February 28, 2008


                GEORGE J. GILLESPIE, III*

                Director

                February 28, 2007


                George J. Gillespie, III



                Director



                February 28, 2008


                JOHN D. GILLESPIE*

                Director

                February 28, 2007


                John D. Gillespie



                Director



                February 28, 2008


                EDITH E. HOLIDAYHOLIDAY*


                *

                Director

                February 28, 2007

                Edith E. Holiday



                Director



                February 28, 2008


                /s/  
                J. BRIAN PALMER


                J. Brian Palmer



                Chief Accounting Officer

                February 28, 2007

                J. Brian Palmer


                (Principal Accounting Officer)



                February 28, 2008


                LOWNDES A. SMITH*

                Director

                February 28, 2007


                Lowndes A. Smith



                Director



                February 28, 2008


                ALLAN L. WATERS*

                Director

                February 28, 2007


                Allan L. Waters



                Director



                February 28, 2008


                *By:



                /s/  
                RAYMOND BARRETTE


                Raymond Barrette,Attorney-in-Fact




                96




                WHITE MOUNTAINS INSURANCE GROUP, LTD.

                Index to Consolidated Financial Statements and Financial Statement Schedules



                Form
                10-K
                page(s)


                Consolidated financial statements:

                Consolidated balance sheets at December 31, 20062007 and 2005

                2006

                F-1

                Consolidated statements of income and comprehensive income for each of the years ended

                December 31, 2007, 2006 and 2005

                F-2

                December 31, 2006, 2005 and 2004

                F-2

                Consolidated statements of common shareholders’shareholders' equity for each of the years ended

                December 31, 2007, 2006 and 2005

                F-3

                December 31, 2006, 2005 and 2004

                F-3

                Consolidated statements of cash flows for each of the years ended

                December 31, 2007, 2006 and 2005

                F-4

                December 31, 2006, 2005 and 2004

                F-4

                Notes to consolidated financial statements

                F-5


                Other financial information:



                Management’sManagement's annual report on internal control over financial reporting

                F-64

                F-66

                Report of independent registered public accounting firm

                F-65

                F-67

                Selected quarterly financial data (unaudited)

                (unaudited)

                F-67

                F-68


                Financial statement schedules:



                II.

                Summary of investments - investments—other than investments in related parties

                FS-1

                II.

                Condensed financial information of the Registrant

                FS-2

                III.

                Supplementary insurance information

                FS-4

                IV.  Reinsurance

                Reinsurance

                FS-5

                V.

                Valuation and qualifying accounts

                FS-6

                VIVI.

                Supplemental information for property and casualty insurance underwriters

                FS-7


                97




                CONSOLIDATED BALANCE SHEETS

                 

                 

                December 31,

                 

                (Millions, except share and per share amounts)

                 

                2006

                 

                2005

                 

                Assets

                 

                 

                 

                 

                 

                Fixed maturity investments, at fair value (amortized cost $7,812.9 and $7,548.4)

                 

                $

                7,911.5

                 

                $

                7,582.7

                 

                Common equity securities, at fair value (cost $972.0 and $796.5)

                 

                1,212.6

                 

                967.8

                 

                Short-term investments, at amortized cost (which approximates fair value)

                 

                1,344.9

                 

                727.8

                 

                Other investments (cost $467.1 and $510.8)

                 

                524.8

                 

                588.1

                 

                Trust account investments, at amortized cost (fair value $337.9 and $0)

                 

                338.9

                 

                 

                Total investments

                 

                11,332.7

                 

                9,866.4

                 

                Cash

                 

                159.0

                 

                187.7

                 

                Reinsurance recoverable on unpaid losses

                 

                2,134.5

                 

                3,003.6

                 

                Reinsurance recoverable on unpaid losses - Berkshire Hathaway Inc.

                 

                1,881.2

                 

                2,022.1

                 

                Reinsurance recoverable on paid losses

                 

                159.4

                 

                77.0

                 

                Insurance and reinsurance premiums receivable

                 

                913.6

                 

                1,014.3

                 

                Securities lending collateral

                 

                649.8

                 

                674.9

                 

                Funds held by ceding companies

                 

                452.8

                 

                620.4

                 

                Investments in unconsolidated insurance affiliates

                 

                335.5

                 

                479.7

                 

                Deferred acquisition costs

                 

                320.3

                 

                288.4

                 

                Deferred tax asset

                 

                276.0

                 

                341.2

                 

                Ceded unearned premiums

                 

                87.9

                 

                200.7

                 

                Accrued investment income

                 

                87.4

                 

                93.5

                 

                Accounts receivable on unsettled investment sales

                 

                8.5

                 

                21.7

                 

                Other assets

                 

                645.1

                 

                526.5

                 

                Total assets

                 

                $

                19,443.7

                 

                $

                19,418.1

                 

                Liabilities

                 

                 

                 

                 

                 

                Loss and loss adjustment expense reserves

                 

                $

                8,777.2

                 

                $

                10,231.2

                 

                Unearned insurance and reinsurance premiums

                 

                1,584.9

                 

                1,582.0

                 

                Debt

                 

                1,106.7

                 

                779.1

                 

                Securities lending payable

                 

                649.8

                 

                674.9

                 

                Deferred tax liability

                 

                311.5

                 

                274.3

                 

                Long-term incentive compensation payable

                 

                285.2

                 

                240.2

                 

                Reserves for structured contracts

                 

                147.1

                 

                224.6

                 

                Funds held under reinsurance treaties

                 

                141.6

                 

                171.4

                 

                Ceded reinsurance payable

                 

                138.4

                 

                204.5

                 

                Accounts payable on unsettled investment purchases

                 

                66.8

                 

                43.4

                 

                Other liabilities

                 

                913.7

                 

                828.9

                 

                Preferred stock subject to mandatory redemption:

                 

                 

                 

                 

                 

                Held by Berkshire Hathaway Inc. (redemption value $300.0)

                 

                242.3

                 

                214.0

                 

                Held by others (redemption value $20.0)

                 

                20.0

                 

                20.0

                 

                Total liabilities

                 

                14,385.2

                 

                15,488.5

                 

                 

                 

                 

                 

                 

                 

                Minority interest- OneBeacon Insurance Group, Ltd.

                 

                490.7

                 

                 

                Minority interest- consolidated limited partnerships

                 

                112.5

                 

                96.4

                 

                Total minority interest

                 

                603.2

                 

                96.4

                 

                 

                 

                 

                 

                 

                 

                Common shareholders’ equity

                 

                 

                 

                 

                 

                Common shares at $1 par value per share — authorized 50,000,000 shares; issued and outstanding 10,782,753 and 10,779,223 shares

                 

                10.8

                 

                10.8

                 

                Paid-in surplus

                 

                1,716.7

                 

                1,716.4

                 

                Unearned compensation - restricted common share awards

                 

                 

                (1.9

                )

                Retained earnings

                 

                2,496.0

                 

                1,899.8

                 

                Accumulated other comprehensive income, after-tax:

                 

                 

                 

                 

                 

                Net unrealized gains on investments

                 

                194.0

                 

                233.9

                 

                Net unrealized foreign currency translation gains (losses)

                 

                37.2

                 

                (21.8

                )

                Other

                 

                0.6

                 

                (4.0

                )

                Total common shareholders’ equity

                 

                4,455.3

                 

                3,833.2

                 

                Total liabilities, minority interest and common shareholders’ equity

                 

                $

                19,443.7

                 

                $

                19,418.1

                 

                 
                 December 31,
                (Millions, except share and per share amounts)

                 2007
                 2006
                Assets      
                Fixed maturity investments, at fair value (amortized cost $7,193.0 and $7,377.0) $7,371.5 $7,475.3
                Common equity securities, at fair value (cost $1,333.9 and $972.0)  1,550.7  1,212.6
                Short-term investments, at amortized cost (which approximates fair value)  1,327.3  1,344.9
                Other investments (cost $539.2 and $467.1)  603.3  524.8
                Convertible fixed maturity investments, at fair value (cost $484.3 and $412.0)  490.6  436.2
                Trust account investments, at amortized cost (fair value $307.0 and $337.9)  305.6  338.9
                  
                 
                  Total investments  11,649.0  11,332.7

                Cash

                 

                 

                171.3

                 

                 

                159.0
                Reinsurance recoverable on unpaid losses  1,702.9  2,134.5
                Reinsurance recoverable on unpaid losses—Berkshire Hathaway Inc.   1,765.0  1,881.2
                Reinsurance recoverable on paid losses  59.5  159.4
                Insurance and reinsurance premiums receivable  877.0  913.6
                Securities lending collateral  661.6  649.8
                Funds held by ceding companies  231.1  452.8
                Investments in unconsolidated affiliates  406.3  335.5
                Deferred acquisition costs  326.0  320.3
                Deferred tax asset  236.6  276.0
                Ceded unearned premiums  123.1  87.9
                Accrued investment income  83.2  87.4
                Accounts receivable on unsettled investment sales  201.1  8.5
                Other assets  611.9  645.1
                  
                 
                  Total assets $19,105.6 $19,443.7
                  
                 
                Liabilities      
                Loss and loss adjustment expense reserves $8,062.1 $8,777.2
                Unearned insurance and reinsurance premiums  1,605.2  1,584.9
                Debt  1,192.9  1,106.7
                Securities lending payable  661.6  649.8
                Deferred tax liability  353.2  311.5
                Incentive compensation payable  224.2  285.2
                Funds held under reinsurance treaties  103.0  141.6
                Ceded reinsurance payable  124.8  138.4
                Accounts payable on unsettled investment purchases  46.4  66.8
                Other liabilities  873.1  1,060.8
                Preferred stock subject to mandatory redemption:      
                 Held by Berkshire Hathaway Inc. (redemption value $300.0)  278.3  242.3
                 Held by others (redemption value $20.0)    20.0
                  
                 
                  Total liabilities  13,524.8  14,385.2

                Minority interest—OneBeacon, Ltd. 

                 

                 

                517.2

                 

                 

                490.7
                Minority interest—WMRe Preference Shares  250.0  
                Minority interest—consolidated limited partnerships  100.2  112.5
                  
                 
                Total minority interest  867.4  603.2

                Common shareholders' equity

                 

                 

                 

                 

                 

                 
                Common shares at $1 par value per share—authorized 50,000,000 shares; issued and outstanding 10,553,572 and 10,782,753 shares  10.5  10.8
                Paid-in surplus  1,680.7  1,716.7
                Retained earnings  2,718.5  2,496.0
                Accumulated other comprehensive income, after-tax:      
                 Net unrealized gains on investments  207.0  194.0
                 Net unrealized foreign currency translation gains  99.3  37.2
                 Other  (2.6) .6
                  
                 
                  Total common shareholders' equity  4,713.4  4,455.3
                  
                 
                  Total liabilities, minority interest and common shareholders' equity $19,105.6 $19,443.7
                  
                 

                See Notes to Consolidated Financial Statements including Note 1821 for Commitments and Contingencies.



                CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME

                 

                 

                Year Ended December 31,

                 

                Millions, except per share amounts

                 

                2006

                 

                2005

                 

                2004

                 

                Revenues

                 

                 

                 

                 

                 

                 

                 

                Earned insurance and reinsurance premiums

                 

                $

                3,712.7

                 

                $

                3,798.6

                 

                $

                3,820.5

                 

                Net investment income

                 

                435.5

                 

                491.5

                 

                360.9

                 

                Net realized investment gains

                 

                272.7

                 

                112.6

                 

                181.1

                 

                Gain on sale of shares of OneBeacon Insurance Group, Ltd.

                 

                171.3

                 

                 

                 

                Other revenue

                 

                202.0

                 

                229.2

                 

                192.8

                 

                Total revenues

                 

                4,794.2

                 

                4,631.9

                 

                4,555.3

                 

                Expenses

                 

                 

                 

                 

                 

                 

                 

                Loss and loss adjustment expenses

                 

                2,452.7

                 

                2,858.2

                 

                2,591.1

                 

                Insurance and reinsurance acquisition expenses

                 

                754.8

                 

                761.2

                 

                744.4

                 

                Other underwriting expenses

                 

                505.4

                 

                424.7

                 

                520.4

                 

                General and administrative expenses

                 

                218.3

                 

                148.8

                 

                301.0

                 

                Accretion of fair value adjustment to loss and loss adjustment expense reserves

                 

                24.5

                 

                36.9

                 

                43.3

                 

                Interest expense on debt

                 

                50.1

                 

                44.5

                 

                49.1

                 

                Interest expense - dividends on preferred stock subject to mandatory redemption

                 

                30.3

                 

                30.3

                 

                30.3

                 

                Interest expense - accretion on preferred stock subject to mandatory redemption

                 

                28.3

                 

                22.1

                 

                17.3

                 

                Total expenses

                 

                4,064.4

                 

                4,326.7

                 

                4,296.9

                 

                Pre-tax income

                 

                729.8

                 

                305.2

                 

                258.4

                 

                Income tax provision

                 

                (98.9

                )

                (36.5

                )

                (47.0

                )

                Income before minority interest, equity in earnings of unconsolidated affiliates and extraordinary item

                 

                630.9

                 

                268.7

                 

                211.4

                 

                Minority interest

                 

                (16.0

                )

                (12.2

                )

                (10.6

                )

                Equity in earnings of unconsolidated affiliates

                 

                36.9

                 

                33.6

                 

                37.4

                 

                Income before extraordinary item

                 

                651.8

                 

                290.1

                 

                238.2

                 

                Excess of fair value of acquired net assets over cost

                 

                21.4

                 

                 

                180.5

                 

                Net income

                 

                673.2

                 

                290.1

                 

                418.7

                 

                Change in net unrealized gains and losses for investments held

                 

                125.3

                 

                (50.8

                )

                218.0

                 

                Recognition of net unrealized gains and losses for investments sold

                 

                (156.0

                )

                (131.4

                )

                (87.9

                )

                Change in foreign currency translation

                 

                59.0

                 

                (70.3

                )

                48.8

                 

                Net change in minimum pension liability and other

                 

                4.6

                 

                (1.6

                )

                (2.4

                )

                Comprehensive net income

                 

                $

                706.1

                 

                $

                36.0

                 

                $

                595.2

                 

                Basic earnings per share

                 

                 

                 

                 

                 

                 

                 

                Income before extraordinary item

                 

                $

                60.52

                 

                $

                26.96

                 

                $

                24.05

                 

                Net income

                 

                62.51

                 

                26.96

                 

                42.28

                 

                Diluted earnings per share

                 

                 

                 

                 

                 

                 

                 

                Income before extraordinary item

                 

                $

                60.33

                 

                $

                26.56

                 

                $

                22.67

                 

                Net income

                 

                62.32

                 

                26.56

                 

                39.92

                 

                Dividends declared and paid per common share

                 

                $

                8.00

                 

                $

                8.00

                 

                $

                1.00

                 

                See Notes to Consolidated Financial Statements.

                F-2

                 
                 Year Ended December 31,
                 
                Millions, except per share amounts

                 
                 2007
                 2006
                 2005
                 
                Revenues          
                 Earned insurance and reinsurance premiums $3,783.7 $3,712.7 $3,798.6 
                 Net investment income  533.0  435.5  491.5 
                 Net realized investment gains  263.2  272.7  112.6 
                 Gain on sale of shares through initial public offering of OneBeacon, Ltd.     171.3   
                 Other revenue  153.9  202.0  229.2 
                  
                 
                 
                 
                   Total revenues  4,733.8  4,794.2  4,631.9 
                  
                 
                 
                 
                Expenses          
                 Loss and loss adjustment expenses  2,406.4  2,452.7  2,858.2 
                 Insurance and reinsurance acquisition expenses  776.6  754.8  761.2 
                 Other underwriting expenses  509.0  505.4  424.7 
                 General and administrative expenses  200.5  218.3  148.8 
                 Accretion of fair value adjustment to loss and loss adjustment expense reserves  21.4  24.5  36.9 
                 Interest expense on debt  73.0  50.1  44.5 
                 Interest expense—dividends on preferred stock subject to mandatory redemption  29.3  30.3  30.3 
                 Interest expense—accretion on preferred stock subject to mandatory redemption  36.1  28.3  22.1 
                  
                 
                 
                 
                   Total expenses  4,052.3  4,064.4  4,326.7 
                  
                 
                 
                 
                Pre-tax income  681.5  729.8  305.2 
                 Income tax provision  (210.5) (98.9) (36.5)
                  
                 
                 
                 
                Income before minority interest, equity in earnings of unconsolidated affiliates and extraordinary item  471.0  630.9  268.7 
                 Minority interest  (93.0) (16.0) (12.2)
                 Equity in earnings of unconsolidated affiliates  29.4  36.9  33.6 
                  
                 
                 
                 
                Income before extraordinary item  407.4  651.8  290.1 
                 Excess of fair value of acquired net assets over cost    21.4   
                  
                 
                 
                 
                Net income  407.4  673.2  290.1 
                 Change in net unrealized gains and losses for investments held  140.1  125.3  (50.8)
                 Recognition of net unrealized gains and losses for investments sold  (127.1) (156.0) (131.4)
                 Change in foreign currency translation  62.1  59.0  (70.3)
                 Net change in minimum pension liability and other  (3.2) 4.6  (1.6)
                  
                 
                 
                 
                Comprehensive net income $479.3 $706.1 $36.0 
                  
                 
                 
                 
                Basic earnings per share          
                  Income before extraordinary item $37.96 $60.52 $26.96 
                  Net income  37.96  62.51  26.96 
                Diluted earnings per share          
                  Income before extraordinary item $37.89 $60.33 $26.56 
                  Net income  37.89  62.32  26.56 
                  
                 
                 
                 
                Dividends declared and paid per common share $8.00 $8.00 $8.00 
                  
                 
                 
                 



                CONSOLIDATED STATEMENTS OF COMMON SHAREHOLDERS’ EQUITY

                 

                 

                 

                 

                Common

                 

                 

                 

                Accum. other

                 

                 

                 

                 

                 

                Common

                 

                shares and

                 

                 

                 

                comprehensive

                 

                 

                 

                 

                 

                shareholders’

                 

                paid-in

                 

                Retained

                 

                income,

                 

                Unearned

                 

                Millions

                 

                equity

                 

                surplus

                 

                earnings

                 

                after-tax

                 

                compensation

                 

                Balances at January 1, 2004

                 

                $

                2,979.2

                 

                $

                1,408.6

                 

                $

                1,286.4

                 

                $

                285.7

                 

                $

                (1.5

                )

                Net income

                 

                418.7

                 

                 

                418.7

                 

                 

                 

                Net change in unrealized investment gains

                 

                130.1

                 

                 

                 

                130.1

                 

                 

                Net change in foreign currency translation

                 

                48.8

                 

                 

                 

                48.8

                 

                 

                Net change in minimum pension liability

                 

                (2.4

                )

                 

                 

                (2.4

                )

                 

                Dividends declared on common shares

                 

                (9.1

                )

                 

                (9.1

                )

                 

                 

                Exercise of warrants held by Berkshire Hathaway, Inc.

                 

                294.0

                 

                294.0

                 

                 

                 

                 

                Issuances of common shares

                 

                13.7

                 

                13.7

                 

                 

                 

                 

                Repurchases and retirements of common shares

                 

                (.2

                )

                (.1

                )

                (.1

                )

                 

                 

                Issuance of restricted common shares

                 

                 

                4.7

                 

                 

                 

                (4.7

                )

                Amortization of restricted common share awards

                 

                2.0

                 

                 

                 

                 

                2.0

                 

                Accrued Option expense

                 

                9.1

                 

                9.1

                 

                 

                 

                 

                Balances at December 31, 2004

                 

                3,883.9

                 

                1,730.0

                 

                1,695.9

                 

                462.2

                 

                (4.2

                )

                Net income

                 

                290.1

                 

                 

                290.1

                 

                 

                 

                Net change in unrealized investment gains

                 

                (182.2

                )

                 

                 

                (182.2

                )

                 

                Net change in foreign currency translation

                 

                (70.3

                )

                 

                 

                (70.3

                )

                 

                Net change in minimum pension liability and other

                 

                (1.6

                )

                 

                 

                (1.6

                )

                 

                Dividends declared on common shares

                 

                (86.2

                )

                 

                (86.2

                )

                 

                 

                Issuances of common shares

                 

                1.1

                 

                1.1

                 

                 

                 

                 

                Repurchases and retirements of common shares

                 

                (.1

                )

                (.1

                )

                 

                 

                 

                Forfeiture of restricted common shares

                 

                 

                (.3

                )

                 

                 

                .3

                 

                Amortization of restricted common share awards

                 

                2.0

                 

                 

                 

                 

                2.0

                 

                Accrued Option expense

                 

                (3.5

                )

                (3.5

                )

                 

                 

                 

                Balances at December 31, 2005

                 

                3,833.2

                 

                1,727.2

                 

                1,899.8

                 

                208.1

                 

                (1.9

                )

                Cumulative effect adjustment - hybrid instruments

                 

                 

                 

                9.2

                 

                (9.2

                )

                 

                Cumulative effect adjustment - share-based compensation

                 

                 

                (1.9

                )

                 

                 

                1.9

                 

                Net income

                 

                673.2

                 

                 

                673.2

                 

                 

                 

                Net change in unrealized investment gains

                 

                (30.7

                )

                 

                 

                (30.7

                )

                 

                Net change in foreign currency translation

                 

                59.0

                 

                 

                 

                59.0

                 

                 

                Net change in other

                 

                .5

                 

                 

                 

                .5

                 

                 

                Dividends declared on common shares

                 

                (86.2

                )

                 

                (86.2

                )

                 

                 

                Issuances of common shares

                 

                0.6

                 

                0.6

                 

                 

                 

                 

                Amortization of restricted common share awards

                 

                1.6

                 

                1.6

                 

                 

                 

                 

                Adjustment for initial adoption of FAS 158, net of tax

                 

                4.1

                 

                 

                 

                4.1

                 

                 

                Balances at December 31, 2006

                 

                $

                4,455.3

                 

                $

                1,727.5

                 

                $

                2,496.0

                 

                $

                231.8

                 

                $

                 

                See Notes to Consolidated Financial Statements.



                CONSOLIDATED STATEMENTS OF CASH FLOWSCOMMON SHAREHOLDERS' EQUITY

                 

                 

                Year Ended December 31,

                 

                Millions

                 

                2006

                 

                2005

                 

                2004

                 

                Cash flows from operations:

                 

                 

                 

                 

                 

                 

                 

                Net income

                 

                $

                673.2

                 

                $

                290.1

                 

                $

                418.7

                 

                Charges (credits) to reconcile net income to net cash used for operations:

                 

                 

                 

                 

                 

                 

                 

                Excess of fair value of acquired net assets over cost

                 

                21.4

                 

                 

                (180.5

                )

                Net realized investment gains

                 

                (272.7

                )

                (112.6

                )

                (181.1

                )

                Gain on sale of shares of OneBeacon Insurance Group, Ltd.

                 

                (171.3

                )

                 

                 

                Undistributed equity in earnings from unconsolidated insurance affiliates, after-tax

                 

                48.7

                 

                (33.6

                )

                (37.4

                )

                Deferred income tax provision (benefit)

                 

                33.2

                 

                28.2

                 

                (59.0

                )

                Other operating items:

                 

                 

                 

                 

                 

                 

                 

                Net Federal income tax receipts (payments)

                 

                48.3

                 

                35.3

                 

                (86.5

                )

                Net change in insurance and reinsurance premiums receivable

                 

                111.1

                 

                (58.9

                )

                90.0

                 

                Net change in reinsurance recoverable on paid and unpaid losses

                 

                738.2

                 

                (1,416.4

                )

                300.8

                 

                Net change in loss and LAE reserves

                 

                (1,300.2

                )

                1,188.0

                 

                (750.4

                )

                Net change in reserves for structured contracts

                 

                (77.5

                )

                (151.3

                )

                (56.3

                )

                Net change in unearned insurance and reinsurance premiums

                 

                (4.5

                )

                (37.1

                )

                (54.0

                )

                Net change in funds held by ceding reinsurers

                 

                177.3

                 

                307.2

                 

                12.2

                 

                Net change in other assets and liabilities, net

                 

                70.3

                 

                (323.9

                )

                26.8

                 

                Net cash provided from (used for) operations

                 

                95.5

                 

                (285.0

                )

                (556.7

                )

                Cash flows from investing activities:

                 

                 

                 

                 

                 

                 

                 

                Net change in short-term investments

                 

                (526.2

                )

                295.3

                 

                768.2

                 

                Sales of fixed maturity investments

                 

                4,576.2

                 

                5,785.6

                 

                5,905.1

                 

                Maturities, calls and paydowns of fixed maturity investments

                 

                833.9

                 

                597.2

                 

                1,561.7

                 

                Sales of common equity securities and other investments

                 

                819.2

                 

                581.1

                 

                557.3

                 

                Sales of trust account investments

                 

                7.1

                 

                 

                 

                Sales of consolidated and unconsolidated affiliates, net of cash sold

                 

                771.4

                 

                180.7

                 

                220.9

                 

                Sales of renewal rights

                 

                32.0

                 

                 

                 

                Purchases of trust account assets

                 

                (344.0

                )

                 

                 

                Purchases of common equity securities and other investments

                 

                (697.0

                )

                (589.8

                )

                (378.8

                )

                Purchases of fixed maturity investments

                 

                (5,800.5

                )

                (6,484.7

                )

                (7,157.3

                )

                Purchases of consolidated and unconsolidated affiliates, net of cash acquired

                 

                (33.0

                )

                 

                (659.8

                )

                Net change in unsettled investment purchases and sales

                 

                36.6

                 

                10.7

                 

                (337.2

                )

                Net acquisitions of property and equipment

                 

                (19.8

                )

                (38.5

                )

                (13.6

                )

                Net cash (used for) provided from investing activities

                 

                (344.1

                )

                337.6

                 

                466.5

                 

                Cash flows from financing activities:

                 

                 

                 

                 

                 

                 

                 

                Issuance of debt

                 

                482.4

                 

                18.4

                 

                 

                Repayment of debt

                 

                (155.0

                )

                 

                (25.0

                )

                Cash dividends paid to common shareholders

                 

                (86.2

                )

                (86.2

                )

                (9.1

                )

                Cash dividends paid to preferred shareholders

                 

                (30.3

                )

                (30.3

                )

                (30.3

                )

                Proceeds from issuances of common shares

                 

                .6

                 

                1.1

                 

                307.8

                 

                Net cash provided from (used for) financing activities

                 

                211.5

                 

                (97.0

                )

                243.4

                 

                Effect of exchange rate changes on cash

                 

                8.4

                 

                (11.0

                )

                 

                Net (decrease) increase in cash during year

                 

                (28.7

                )

                (55.4

                )

                153.2

                 

                Cash balance at beginning of year

                 

                187.7

                 

                243.1

                 

                89.9

                 

                Cash balance at end of year

                 

                $

                159.0

                 

                $

                187.7

                 

                $

                243.1

                 

                Millions

                 Common
                shareholders'
                equity

                 Common
                shares and
                paid-in
                surplus

                 Retained
                earnings

                 Accum. other
                comprehensive
                income,
                after-tax

                 Unearned
                compensation

                 
                Balances at January 1, 2005 $3,883.9 $1,730.0 $1,695.9 $462.2 $(4.2)
                  
                 
                 
                 
                 
                 
                Net income  290.1    290.1     
                Net change in unrealized investment gains  (182.2)     (182.2)  
                Net change in foreign currency translation  (70.3)     (70.3)  
                Net change in minimum pension liability and other  (1.6)     (1.6)  
                Dividends declared on common shares  (86.2)   (86.2)    
                Issuances of common shares  1.1  1.1       
                Repurchases and retirements of common shares  (.1) (.1)      
                Forfeiture of restricted common shares    (.3)     .3 
                Amortization of restricted common share awards  2.0        2.0 
                Accrued Option expense  (3.5) (3.5)      
                  
                 
                 
                 
                 
                 
                Balances at December 31, 2005  3,833.2  1,727.2  1,899.8  208.1  (1.9)
                  
                 
                 
                 
                 
                 
                Cumulative effect adjustment—hybrid instruments      9.2  (9.2)  
                Cumulative effect adjustment—share-based compensation    (1.9)     1.9 
                Net income  673.2    673.2     
                Net change in unrealized investment gains  (30.7)     (30.7)  
                Net change in foreign currency translation  59.0      59.0   
                Net change in other  .5      .5   
                Dividends declared on common shares  (86.2)   (86.2)    
                Issuances of common shares  .6  .6       
                Amortization of restricted common share awards  1.6  1.6       
                Adjustment for initial adoption of FAS 158, net of tax  4.1      4.1   
                  
                 
                 
                 
                 
                 
                Balances at December 31, 2006  4,455.3  1,727.5  2,496.0  231.8   
                  
                 
                 
                 
                 
                 
                Cumulative effect adjustment—taxes (FIN 48)  .2    .2     
                Net income  407.4    407.4     
                Net change in unrealized investment gains  13.0      13.0   
                Net change in foreign currency translation  62.1      62.1   
                Net change in other  (3.2)     (3.2)  
                Dividends declared on common shares  (86.2)   (86.2)    
                Issuances of common shares  2.2  2.2       
                Repurchases and retirements of common shares  (148.0) (49.1) (98.9)    
                Amortization of restricted common share awards  4.6  4.6       
                Accrued Option expense  6.0  6.0       
                  
                 
                 
                 
                 
                 
                Balances at December 31, 2007 $4,713.4 $1,691.2 $2,718.5 $303.7 $ 
                  
                 
                 
                 
                 
                 

                See Notes to Consolidated Financial Statements.


                F-4





                CONSOLIDATED STATEMENTS OF CASH FLOWS

                 
                 Year Ended December 31,
                 
                Millions

                 
                 2007
                 2006
                 2005
                 
                Cash flows from operations:          
                Net income $407.4 $673.2 $290.1 
                Charges (credits) to reconcile net income to net cash used for operations:          
                 Net realized investment gains  (263.2) (272.7) (112.6)
                 Gain on sale of shares through initial public offering of OneBeacon Ltd.     (171.3)  
                 Excess of fair value of acquired net assets over cost    (21.4)  
                 Minority interest  93.0  16.0  12.2 
                 Deferred income tax provision  65.1  33.2  28.2 
                 Undistributed equity in earnings from unconsolidated affiliates, after-tax  1.8  48.7  (33.6)
                Other operating items:          
                 Net change in loss and LAE reserves  (770.3) (1,300.2) 1,188.0 
                 Net change in reinsurance recoverable on paid and unpaid losses  659.0  738.2  (1,416.4)
                 Net change in funds held by ceding reinsurers  235.7  177.3  307.2 
                 Net change in insurance and reinsurance premiums receivable  50.7  111.1  (58.9)
                 Net change in unearned insurance and reinsurance premiums  (5.4) (4.5) (37.1)
                 Net change in ceded unearned premiums  (31.2) 118.3  .3 
                 Net change in reserves for structured contracts  (146.0) (77.5) (151.3)
                 Net change in other assets and liabilities, net  57.7  27.1  (301.1)
                  
                 
                 
                 
                Net cash provided from (used for) operations  354.3  95.5  (285.0)
                  
                 
                 
                 
                Cash flows from investing activities:          
                 Net change in short-term investments  16.0  (526.2) 295.3 
                 Sales of fixed maturity and convertible fixed maturity investments  6,932.1  4,576.2  5,785.6 
                 Maturities, calls and paydowns of fixed maturity and convertible fixed maturity investments  672.5  833.9  597.2 
                 Sales of common equity securities and other investments  797.4  819.2  581.1 
                 Sales of trust account investments  33.8  7.1   
                 Sales of consolidated and unconsolidated affiliates, net of cash sold  90.1  771.4  180.7 
                 Sale of Agri renewal rights    32.0   
                 Purchases of trust account assets    (344.0)  
                 Purchases of common equity securities and other investments  (1,135.7) (697.0) (589.8)
                 Purchases of fixed maturity and convertible fixed maturity investments  (7,430.2) (5,800.5) (6,484.7)
                 Purchases of consolidated and unconsolidated affiliates, net of cash acquired  (51.6) (33.0)  
                 Net change in unsettled investment purchases and sales  (213.0) 36.6  10.7 
                 Net acquisitions of property and equipment  (26.2) (19.8) (38.5)
                  
                 
                 
                 
                Net cash (used for) provided from investing activities  (314.8) (344.1) 337.6 
                  
                 
                 
                 
                Cash flows from financing activities:          
                 Issuance of WMRe Preference Shares, net of issuance costs  246.6     
                 Issuance of debt  394.4  482.4  18.4 
                 Repayment of debt  (322.0) (155.0)  
                 Redemption of mandatorily redeemable preferred stock  (20.0)    
                 Interest rate swap agreements  (2.4)    
                 Cash dividends paid to the Company's common shareholders  (86.2) (86.2) (86.2)
                 Cash dividends paid to OneBeacon Ltd.'s minority common shareholders  (23.4)      
                 Cash dividends paid to preferred shareholders  (29.3) (30.3) (30.3)
                 Cash dividends paid on WMRe Preference Shares  (11.3)    
                 Company's Common shares repurchased and retired  (148.0)    
                 OneBeacon Ltd. Common shares repurchased and retired  (33.0)    
                 Proceeds from issuances of common shares  2.2  .6  1.1 
                  
                 
                 
                 
                Net cash (used for) provided from financing activities  (32.4) 211.5  (97.0)
                  
                 
                 
                 
                Effect of exchange rate changes on cash  5.2  8.4  (11.0)
                  
                 
                 
                 
                Net increase (decrease) in cash during year  12.3  (28.7) (55.4)
                Cash balance at beginning of year  159.0  187.7  243.1 
                  
                 
                 
                 
                Cash balance at end of year $171.3 $159.0 $187.7 
                  
                 
                 
                 

                See Notes to Consolidated Financial Statements.



                NOTES TO CONSOLIDATED FINANCIAL STATEMENTS

                NOTE 1. Summary of Significant Accounting Policies

                Basis of presentation

                The accompanying consolidated financial statements include the accounts of White Mountains Insurance Group, Ltd. (the “Company”"Company" or the “Registrant”"Registrant") and its subsidiaries (collectively with the Company, "White Mountains") and have been prepared in accordance with Generally Accepted Accounting Principlesgenerally accepted accounting principles in the United States (“GAAP”("GAAP"). Within this report, the term “White Mountains” is used to refer to one or more entities within the consolidated organization, as the context requires. The Company is an exempted Bermuda limited liability company whose principal businesses are conducted through its property and casualty insurance and reinsurance subsidiaries and affiliates. The Company’sCompany's headquarters are located at Bank of Butterfield Building, 42 Reid Street, Hamilton, Bermuda HM 12, its principal executive office is located at 80 South Main Street, Hanover, New Hampshire 03755-2053 and its registered office is located at Clarendon House, 2 Church Street, Hamilton, Bermuda HM 11. White Mountains’Mountains' reportable segments are OneBeacon, White Mountains Re, Esurance and Other Operations. Significant transactions among White Mountains' segments have been eliminated in this report.

                The OneBeacon segment consists of OneBeacon Insurance Group, Ltd. (“("OneBeacon Ltd."), a Bermuda-basedan exempted Bermuda limited liability company that owns a family of U.S.-based property and casualty insurance companies (collectively “OneBeacon”"OneBeacon"), substantially all of which operate in a multi-company pool. OneBeacon offers a wide range of specialty, personalcommercial and commercialpersonal products and services sold primarily through select independent agents and brokers. OneBeacon was acquired by White Mountains in 2001 (the “OneBeacon Acquisition”"OneBeacon Acquisition"). During the fourth quarter of 2006, White Mountains sold 27.6 million, or 27.6%, of OneBeacon Ltd.’s's common shares in an initial public offering (the “OneBeacon Offering”"OneBeacon Offering"). In connection with the OneBeacon Offering,At December 31, 2007 White Mountains undertook an internal reorganization (the “Reorganization”) and formedowned 72.9% of OneBeacon Ltd. for the purpose of holding certain of its property and casualty insurance businesses. As a result of the Reorganization, certain of White Mountains’ businesses that have been historically reported as part of its Other Operations segment are now owned by OneBeacon Ltd., and accordingly have been included in the OneBeacon segment for all periods presented in this report. In addition, certain other businesses of White Mountains that had been historically reported as part of its OneBeacon segment and which were not held by OneBeacon Ltd. following the OneBeacon Offering are included in the Other Operations segment for all periods presented in this report.'s outstanding common shares.

                The White Mountains Re segment consists of White Mountains Re Group, Ltd., a Bermuda-basedan exempted Bermuda limited liability company, and its subsidiaries (collectively, “White"White Mountains Re”Re"). White Mountains Re offers reinsurance capacity for property, liability,casualty, accident & health, agriculture, aviation and space and certain marineother exposures on a worldwide basis through its subsidiaries, Folksamerica Reinsurance Company (“Folksamerica Re”, together with its immediate parent, Folksamerica Holding Company (“FHC”("Folksamerica"), “Folksamerica”), which has been a wholly-owned subsidiary of White Mountains since 1998, and Sirius International Insurance Corporation (“("Sirius International”International"). On April 16, 2004,, and White Mountains acquired Sirius Insurance Holdings Sweden AB and its subsidiaries (“Sirius”) (the “Sirius Acquisition”). The principal companies acquired were Sirius International, Sirius America Insurance Company (“Sirius America”Re Bermuda Ltd. ("WMRe (Bermuda"), which provides primary insurance programs in the United States, and Scandinavianformerly Fund American Reinsurance Company, Ltd. (“Scandinavian Re”), a reinsurance company that has been in run-off since 2002.. White Mountains Re also provides reinsurance advisory services, specializing primarily in property and other short-tailed lines of reinsurance, through White Mountains Re Underwriting Services Ltd. (“WMRUS”("WMRUS"). On August 2,3, 2006, White Mountains Re sold one of its subsidiaries, Sirius America Insurance Company ("Sirius America"), to an investor group. As part of the transaction, White Mountains acquired an equity interest of approximately 18% in the acquiring entity, Lightyear Delos Acquisition Corp. (“Delos”("Delos"), and accounts for Delos on the equity method within its Other Operations segment.

                The Esurance segment consists of Esurance Holdings, Ltd.Inc., a Bermuda-based company, and certain of its subsidiaries (collectively, “Esurance”"Esurance"). Esurance, which has been a unit of White Mountains since October 2000, sells personal auto insurance directly to customers online and through select online agents.

                White Mountains’Mountains' Other Operations segment consists of the Company and its intermediate holding companies, its wholly-owned investment management subsidiary, White Mountains Advisors LLC (“("WM Advisors”Advisors"), its weather risk management business (“Galileo”("Galileo"), its variable annuity reinsurance business (“White Mountains Life Reinsurance (Bermuda) Ltd. ("WM Life Re”Re"), as well as the International American Group, Inc. (the “International"International American Group”Group") and various other entities not included in other segments. The International American Group which was acquired by White Mountains in 1999, consists ofincludes American Centennial Insurance Company (“("American Centennial”Centennial") and British Insurance Company of Cayman (“("British Insurance Company”Company"), both of which are in run-off. The Other Operations segment also includes White Mountains’Mountains' investments in warrants to purchase common shares of Montpelier Re Holdings, Ltd. (“Montpelier Re”),and warrants to purchase common shares of Symetra Financial Corporation (“Symetra”("Symetra"), its investment in Delos and commonPentelia Investment Ltd. and preferred sharesthe consolidated results of Delos.Tuckerman Capital, LP and Tuckerman Capital II, LP funds ("Tuckerman Funds").


                        

                All significant intercompany transactions have been eliminated in consolidation. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. Certain amounts in the prior period financial statements have been reclassified to conform with the current presentation.


                Investment securities

                Investment securities

                White Mountains’Mountains' invested assets comprise securities and other investments held for general investment purposes and those held in two segregated trust accounts.

                White Mountains’Mountains' portfolio of fixed maturity investments and common equity securities held for general investment purposes are classified as available for sale and are reported at fair value as of the balance sheet date asdate. The fair value of White Mountains' fixed maturities and common equity securities is determined by quoted market prices.prices when available. When quoted market prices are unavailable, White Mountains calculates an estimated fair value using observable market inputs such as interest rates, yield curve, prepayment speeds, etc. Net unrealized investment gains and losses on available for sale securities are reported net, after-tax, as a separate component of shareholders’shareholders' equity. Changes in net unrealized investment gains and losses, net of the effect of adjustments for minority interest and after-tax, are reported as a component of other comprehensive income.

                        Asset-backed securities are included in fixed maturity investments and consist primarily of pooled collateralized mortgage obligations. Asset-backed securities are classified as available for sale and carried at fair value. Fair values for asset-backed securities are based on quoted market prices from a third party pricing service. Income on asset-backed securities is recognized using an effective yield based on anticipated prepayments and the estimated economic life of the securities. When actual prepayments differ significantly from anticipated prepayments, the estimated economic life is recalculated and the remaining unamortized premium or discount is amortized prospectively over the remaining economic life.

                White Mountains’Mountains' portfolio of fixed maturity investments held in the segregated trust accounts are classified as held to maturity as the Company has the ability and intent to hold the investments until maturity. Securities classified as held to maturity are recorded at amortized cost.

                Investment securities are regularly reviewed for impairment based on criteria that include the extent to which cost exceeds market value, the duration of the market decline, the financial health of and specific prospects for the issuer and the ability and intent to hold the investment to recovery. Investment losses that are other than temporary are recognized in earnings. Realized gains and losses resulting from sales of investment securities are accounted for using the weighted average method. Premiums and discounts on all fixed maturity investments are accreted to income over the anticipated life of the investment.

                Short-term investments consist of money market funds, certificates of deposit and other securities which mature or become available for use within one year. Short-term investments are carried at amortized cost, which approximated fair value as of December 31, 20062007 and 2005.2006. Short-term investments held in the segregated trust account are included in the total of investments held in trust.

                Other investments comprise White Mountains’Mountains' investments in limited partnerships, warrants, equity method investments and an interest rate swap accounted for as a cash flow hedge.

                Investments in limited partners hipspartnerships

                White Mountains has investments in a number of limited partnerships, which are recorded in other investments. Changes in White Mountains’Mountains' interest in limited partnership interests accounted for using the equity method are included in net realized investment gains. Changes in White Mountains’Mountains' interest in limited partnerships not accounted for under the equity method are reported, net of tax,after-tax, as a component of shareholders’shareholders' equity, with changes therein reported after-tax, as a component of other comprehensive income.

                Securities lending

                White Mountains participates in a securities lending program as a mechanism for generating additional investment income on its fixed maturity portfolio. Under the security lending arrangements, certain of its fixed maturity investments are loaned to other institutions for short periods of time through a lending agent. White Mountains maintains control over the securities it lends, retains the earnings and cash flows associated with the loaned securities and receives a fee from the borrower for the temporary use of the asset. Collateral, inThe security lending counter party is required to provide cash collateral for the form of cash and United States governmentloaned securities, which is then invested by the lending agent. The collateral is required at a rate of 102% of the fair value of the loaned securities, is controlled by the lending agent and may not be sold or re-pledged. The fair value of the securities lending collateral is recorded as both an asset and liability on the balance sheet. However, other than inIn the event of default by the borrower, this collateral is not available to White Mountains and will be remitted to the borrower bythat the lending agent upondoes not return the returnfull amount of collateral to the loaned securities. Because of these restrictions,security lending counter party, White Mountains considers the collateral transactions associated with its securities lending activitiesis obligated to be non-cash transactions.make up any deficiency. An indemnification agreement with the lending agent protects White Mountains in the event a borrower becomes insolvent or fails to return any of the securities on loan. The contractual amount of the securities lending collateral is recorded as both an asset and liability on the balance sheet. At December 31, 2007 and 2006, security lending collateral was invested entirely in securities rated AA or better by Standard & Poor's.


                        At December 31, 2007 and 2006, the fair value of securities held as collateral exceeded the amounts required to be returned to the security lending counter party by the lending agent upon the return of the loaned securities. However, other than in the event of default by the borrower, this collateral is not available to White Mountains. Because of these restrictions, White Mountains considers the collateral transactions associated with its securities lending activities to be non-cash transactions.

                Derivative financial instruments

                White Mountains holds a variety of derivative financial instruments for both risk management and investment purposes. White Mountains recognizes all derivatives as either assets or liabilities, measured at fair value, in the consolidated balance sheets.

                Convertible bonds

                Convertible bonds

                White Mountains owns convertible bonds. The equity conversion option is considered an embedded derivative. Prior to January 1, 2006, in accordance with Statement of Financial Accounting Standard (“SFAS”("SFAS") No. 133, “Accounting"Accounting for Derivative Instruments and Hedging Activities” (“Activities" ("SFAS 133”133"), White Mountains bifurcated all equity option derivatives that are embedded in its convertible bonds. The original host instruments were reported, at fair value, in fixed maturity investments and the embedded derivatives were reported, at fair value, in other investments. Changes in the fair values of the equity options were included in realized gains and losses. Effective January 1, 2006, White Mountains adopted FAS No. 155, “Accounting"Accounting for Certain Hybrid Instruments, an amendment to Statement Nos. 133 and 140” (“140" ("FAS 155”155"). FAS 155 eliminated the requirement to bifurcate financial instruments with embedded derivatives if the holder of the instrument elects to account for the entire instrument on a fair value basis with changes in fair value of the entire instrument recorded through income as realized gains. Prior to adoption of FAS 155, White Mountains had recorded $283.5 million related to the host instrument in fixed maturity investments and $99.8 million for the equity conversion option in other investments. Upon adoption of FAS 155, White Mountains recorded an adjustment of $9.2 million to reclassify net unrealized gains on investments (gross gains of $9.8 million and gross losses of $.6 million) to opening retained earnings to reflect the cumulative effect of adoption. The fair value of convertible bonds at December 31, 20062007 was $429.5 million and was included in fixed maturity investments.$490.6 million.

                Warrants

                Warrants

                White Mountains holds warrants to acquire common shares of SymetraSymetra. During 2007 and 2006, White Mountains also held warrants to acquire common shares of Montpelier Re. On May 1, 2007 White Mountains sold all of its remaining interest in Montpelier Re. White Mountains also holds warrants that it has received in the restructuring (e.g., securities received from bankruptcy proceedings) of certain of its common equity and/or fixed maturity investments. White Mountains accounts for its investments in warrants in accordance with SFAS 133 as derivatives. The warrants are recorded in other investments at fair value with changes therein recorded in realized gains or losses in the period in which they occur.

                White Mountains holds warrants to acquire 7.2 million common shares of Montpelier Re and warrants to acquire 1.1 million common shares of Symetra.        The Company uses a Black-Scholes valuation model to determine the fair value of the Montpelier Re and Symetra warrants. The major assumptions used in valuing the valuation of the Montpelier ReSymetra warrants at December 31, 2007 were a risk-free rate of 4.70%3.70%, volatility of 30% and25%, an expected life of approximately 5 years. The major assumptions used in valuing the Symetra warrants were6.6 years and a risk-free rateshare price of 4.70%, volatility of 25% and an expected life of approximately 5 years.$16.48 per share.

                Cash flow hedge

                Contemporaneously with entering into a variable rate mortgage note, OneBeacon entered into an interest rate swap agreement under which it pays a fixed rate and receives a variable rate to hedge its exposure to interest rate fluctuations. The notional amount of the swap is equal to the outstanding principal of the mortgage note it hedges and is adjusted at the same time as the mortgage note principal changes for drawdowns and repayments. The underlying index used to determine the variable interest paid under the swap is the same as that used for OneBeacon’sOneBeacon's variable rate mortgage note. In accordance with SFAS 133, OneBeacon has accounted for the swap as a cash flow hedge and has recorded the interest rate swap at fair value on the balance sheet in other assets. Changes in the fair value of the interest rate swap, after tax, are reported as a component of other comprehensive income. OneBeacon monitors continued effectiveness of the hedge by monitoring the changes in the terms of the instruments as described above as compared to the actual changes in principal and notional amount in the mortgage note and interest rate swap.


                Interest rate lock

                        

                Weather contracts

                During 2006,In anticipation of the issuance of the WMRe Senior Notes, White Mountains Re entered into an interest rate lock agreement to hedge its interest rate exposure from the weather risk management business through its newly formed subsidiary, Galileo. Galileodate of the agreement until the pricing of the WMRe Senior Notes. The agreement was terminated on March 15, 2007 and the resulting loss of $2.4 million was recorded in accumulated other comprehensive income. The loss is being reclassified from accumulated other comprehensive income to interest expense over the life of the WMRe Senior notes using the interest method.

                Weather contracts

                        White Mountains offers weather and weather contingent risk management products which, at December 31, 2006, were allthrough its subsidiary, Galileo. All of Galileo's products are in the form of derivative financial instruments. AllGalileo enters into weather and weather contingent derivative contracts with the objective of generating profits in normal climatic conditions. Accordingly, Galileo's weather and weather contingent derivatives are recognizednot designed to meet the GAAP criteria for hedge accounting. The majority of Galileo's business consists of receiving a payment or premium at the contract inception in exchange for bearing the risk of variations in a quantifiable weather index. Galileo initially recognizes the premium paid or received as either assetsan asset or liabilitiesliability, respectively, and recognizes any subsequent changes in fair value, as they occur, in other revenues within the balance sheet.income statement. The fair value for exchange tradedGalileo's derivative financial contracts are based upon quoted market prices, where available. Where quoted market prices are not available, management uses available market data and internal pricing models based upon consistent statistical methodologies to estimate the fair value. The gain or loss at the inception date for contracts valued based upon internal pricing models are deferred and amortized into income over the period at risk for each underlying contract. At December 31, 2006, Galileo has unamortized deferred gains of $4.7 million.

                Galileo’s weather derivatives are not designed to meet the GAAP criteria for hedge accounting. Accordingly, changes in the fair value subsequent to inception are recognized in the period in which they occur and are recorded in other revenues within the income statement. For the year ended December 31, 2006, Galileo recognized $2.1 million of net losses on its weather derivatives portfolio. The fair values of Galileo’s risk management products are subject to change in the near-term and reflect management’s best estimate based on various factors including, but not limited to, realized and forecasted weather conditions, changes in interest or foreign currency exchange rates and other market factors. Estimating the fair value of derivative instruments that do not have quoted market prices requires management’s judgment in determining amounts that could reasonably be expected to be received from or paid to a third party to settle the contracts. Such amounts could be materially different from the amounts that might be realized in an actual transaction to settle the contract with a third party.

                At December 31, 2006, Galileo had recorded a net liability of $2.1 million for exchange traded weather derivative contracts and a net liability of $10.0 million for weather derivative contracts valued based on internal pricing models. Galileo requires certain counterparties to provide cash collateral that it invests until the underlying contract has settled. At December 31, 2006, Galileo had recorded a $25.2 million liability for collateral received.

                Galileo’s weather risk management contracts, all of which mature within one year, are summarized in the following table:

                (Millions)

                 

                 

                 

                Carrying value of net liability for weather derivative contracts at January 1, 2006

                 

                $

                 

                Net consideration received during the year for new contracts

                 

                12.6

                 

                Net payments made on contracts settled during the year

                 

                (2.6

                )

                Net decrease in fair value on settled and unsettled contracts

                 

                2.1

                 

                Carrying value of net liability for weather derivative contracts at December 31, 2006 (1)

                 

                $

                12.1

                 


                (1)     Amount includes $4.7 million in unamortized deferred gains.

                Derivatives - Derivatives—Variable annuity reinsurance

                In August 2006,        White Mountains has entered into an agreementagreements to reinsure death and living benefit guarantees associated with certain variable annuities in Japan through its wholly owned subsidiary, WM Life Re. The accounting for benefit guarantees differs depending on whether or not the guarantee is classified as a derivative or an insurance liability.

                Guaranteed minimum accumulation benefits (“GMABs”("GMABs") are paid to an annuitant for any shortfall between accumulated account value at the end of the accumulation period and the annuitant’sannuitant's total deposit, less any withdrawal payments made to the annuitant during the accumulation period. GMABs meet the definition of a derivative for accounting purposes and are accounted for under FAS 133. Therefore, GMABs are carried at fair value, with changes thereon recognized in income in the period of the change. The liability for the reinsured GMAB contracts has been determined using internal valuation models that use assumptions for interest rates, equity markets, foreign exchange rates and market volatilities at the valuation date, as well as annuitant-related actuarial assumptions, including surrender and mortality rates.

                If an annuitant dies during the accumulation period of an annuity contract, guaranteed minimum death benefits (“GMDBs”("GMDBs") are paid to the annuitant’sannuitant's beneficiary for shortfalls between accumulated account value at the time of an annuitant’sannuitant's death and the annuitant’sannuitant's total deposit, less any living benefit payments or withdrawal payments previously made to the annuitant. GMDBs are accounted for as life insurance liabilities in accordance with Statement of Position 03-1, “Accounting"Accounting and Reporting by Insurance Enterprises for Certain Nontraditional Long-Duration Contracts and for Separate Accounts”Accounts" (the


                “SOP” "SOP"). The life insurance liability for the reinsured GMDB contracts has been calculated using the methodology prescribed within the SOP for variable annuity contracts and is based on investment returns, mortality, surrender rates and other assumptions.assumptions and is recognized over the contract period.

                The valuation of these liabilities involveinvolves significant judgment and is subject to change based upon changes in capital market assumptions and emerging surrender and mortality experience of the underlying contracts in force. At December 31, 2006, the liability recorded for the variable annuity benefit guarantees was $(13.8) million, which is included in other liabilities.

                WM Life Re has entered into derivative contracts that are designed to economically hedge against changes in the fair value of living and death benefit liabilities associated with its variable annuity reinsurance arrangements. The derivatives include futures and over-the-counter option contracts on interest rates, major equity indices, and foreign currencies. All WM Life Re's derivative instruments are recorded as assets or liabilities at fair value on the balance sheet.sheet within other assets. These derivative financial instruments do not meet the hedging criteria under FAS 133, and accordingly, changes in fair value are recognized in the current period as gains or losses in the income statement. At December 31, 2006, the fair value of these derivative contracts, which is recorded instatement within other assets, was $21.2 million and had inception to date losses of $15.7 million, which are included in other revenues. In connection with these derivative contracts, WM Life Re has deposited collateral comprising $2.2 million of cash and $7.7 million of securities with counterparties.

                Cash

                Cash

                Cash includes amounts on hand and demand deposits with banks and other financial institutions. Amounts presented in the statement of cash flows are shown net of balances acquired and sold in the purchase or sale of the Company’s Company's consolidated subsidiaries.


                Insurance and reinsurance operations

                White Mountains accounts for insurance and reinsurance policies that it writes in accordance with SFAS No. 60, “Accounting"Accounting and Reporting by Insurance Enterprises” (“Enterprises" ("SFAS 60”60"). Premiums written are recognized as revenues and are earned ratably over the term of the related policy or reinsurance treaty. Unearned premiums represent the portion of premiums written that are applicable to future insurance or reinsurance coverage provided by policies or treaties in force. AutoOne Insurance, which acts as a limited assigned distribution (“LAD”("LAD") servicing carrier, enters into contractual arrangements with insurance companies to assume private passenger automobile assigned risk exposures in the state of New York. AutoOne Insurance receives LAD servicing fees for assuming these risks. LAD servicing fees are typically a percentage of the total premiums that AutoOne Insurance must write to fulfill the obligation of the transferor company. LAD servicing carriers may choose to write certain policies voluntarily by taking risks out of the New York Automobile Insurance Plan (“NYAIP”("NYAIP"). These policies generate takeout credits which can be “sold”"sold" for fees to the transferor company (“("takeout fees”fees"). These fees are also typically a percentage of the transferor company’scompany's NYAIP premium assignments. AutoOne Insurance’sInsurance's LAD servicing and takeout fees are recorded as written premium when billed and are earned ratably over the term of the related policy to which the fee relates.

                        White Mountains charges fees on certain of its insurance policies. Refundable fees are classified with premiums and recognized in earnings over the policy term. Fees that represent a reimbursement of expenses, such as installment fees, are recorded as a reduction of underwriting expenses.

                Deferred acquisition costs represent commissions, premium taxes, brokerage expenses and other costs which are directly attributable to and vary with the production of new business. These costs are deferred and amortized over the applicable premium recognition period as insurance and reinsurance acquisition expenses. Deferred acquisition costs are limited to the amount expected to be recovered from future earned premiums and anticipated investment income. This limitation is referred to as a premium deficiency. A premium deficiency is recognized if the sum of expected loss and loss adjustment expenses (“LAE”("LAE"), expected dividends to policyholders, unamortized acquisition costs, and maintenance costs exceeds related unearned premiums. A premium deficiency is recognized by charging any unamortized acquisition costs to expense to the extent required in order to eliminate the deficiency. If the premium deficiency exceeds unamortized acquisition costs then a liability is accrued for the excess deficiency.


                        

                Losses and LAE are charged against income as incurred. Unpaid insurance losses and LAE are based on estimates (generally determined by claims adjusters, legal counsel and actuarial staff) of the ultimate costs of settling claims, including the effects of inflation and other societal and economic factors. Unpaid reinsurance losses and LAE are based primarily on reports received from ceding companies and actuarial projections. Unpaid loss and LAE reserves represent management’smanagement's best estimate of ultimate losses and LAE, net of estimated salvage and subrogation recoveries, if applicable. Such estimates are regularly reviewed and updated and any adjustments resulting therefrom are reflected in current operations. The process of estimating loss and LAE involves a considerable degree of judgment by management and the ultimate amount of expense to be incurred could be considerably greater than or less than the amounts currently reflected in the financial statements.

                OneBeacon discounts certain of its long-term workers compensation loss and LAE reserves when such liabilities constitute unpaid but settled claims under which the payment pattern and ultimate costs are fixed and determinable on an individual claim basis. OneBeacon discounts these reserves using an average discount rate which is determined based on the facts and circumstances applicable at the time the claims are settled (5.3%(5.5% and 5.0%5.3% at December 31, 20062007 and 2005)2006). As of December 31, 20062007 and 2005,2006, the discount on OneBeacon’sOneBeacon's workers compensation loss and LAE reserves amounted to $190.7$156.9 million and $214.3$190.7 million.

                In connection with purchase accounting for the OneBeacon Acquisition, White Mountains was required to adjust to fair value OneBeacon’sOneBeacon's loss and LAE reserves and the related reinsurance recoverables by $646.9 million and $346.9 million, respectively, on OneBeacon’sOneBeacon's acquired balance sheet as of June 1, 2001. This net reduction to loss and LAE reserves of $300.0 million is being accreted through an income statement charge ratably with and over the period the claims are settled. See(See Note 3.3)

                In connection with purchase accounting for Sirius, White Mountains was required to adjust to fair value the loss and LAE reserves on Sirius’Sirius' acquired balance sheet by $58.1 million. This fair value adjustment is being accreted through an income statement charge ratably with and over the period the claims are settled. See(See Note 3.3)


                White Mountains’Mountains' insurance and reinsurance subsidiaries enter into ceded reinsurance contracts from time to time to protect their businesses from losses due to concentration of risk, to manage their operating leverage ratios and to limit losses arising from catastrophic events. Such reinsurance contracts are executed through excess of loss treaties and catastrophe contracts under which the reinsurer indemnifies for a specified part or all of certain types of losses over stipulated amounts arising from any one occurrence or event. White Mountains has also entered into quota share treaties with reinsurers under which all risks meeting prescribed criteria are covered on a pro-rata basis. The amount of each risk ceded by White Mountains is subject to maximum limits which vary by line of business and type of coverage. Amounts related to reinsurance contracts are recorded in accordance with SFAS 113, "Accounting and Reporting for Reinsurance of Short-Duration and Long-Duration Contracts" and Emerging Issues Task Force Topic No. D-54, as applicable.

                Amounts recoverable from reinsurers are estimated in a manner consistent with the claim liability associated with the reinsured policies. The collectibility of reinsurance recoverables is subject to the solvency of the reinsurers. White Mountains is selective in regard to its reinsurers, principally placing reinsurance with those reinsurers with a strong financial condition, industry ratings and underwriting ability. Management monitors the financial condition and ratings of its reinsurers on an ongoing basis.

                Reinsurance premiums, commissions, expense reimbursements and reserves related to reinsured business are accounted for on a basis consistent with those used in accounting for the original policies issued and the terms of the reinsurance contracts. Premiums ceded to other companies are reported as a reduction of premiums written. Expense allowances received in connection with reinsurance ceded have been accounted for as a reduction of the related policy acquisition costs and are deferred and amortized accordingly. Funds held by ceding companies represent amounts due to White Mountains in connection with certain assumed reinsurance agreements in which the ceding company retains a portion of the premium to provide security against future loss payments. The funds held by ceding companies are generally invested by the ceding company and a contractually agreed interest amount is credited to the Company and recognized as investment income. Funds held under reinsurance treaties represent contractual payments due to the reinsurer that White Mountains has retained to secure obligations of the reinsurer. Such amounts are recorded as liabilities in the consolidated financial statements.


                Mandatory Shared Market Mechanisms

                As a condition to its licenses to do business in certain states, White Mountains’Mountains' insurance operations must participate in various mandatory shared market mechanisms commonly referred to as “residual”"residual" or “involuntary”"involuntary" markets. These markets generally consist of risks considered to be undesirable from a standard or routine underwriting perspective. Each state dictates the levels of insurance coverage that is mandatorily assigned to participating insurers within these markets. The total amount of such business an insurer must accept in a particular state is generally based on that insurer’sinsurer's market share of voluntary business written within that state. In certain cases, White Mountains is obligated to write business from shared market mechanisms at a future date based on its historical market share of all voluntary policies written within that state. Involuntary business generated from mandatory shared market mechanisms is accounted for in accordance with SFAS 60 or as assumed reinsurance under SFAS 113 “Accounting and Reporting for Reinsurance of Short-Duration and Long-Duration Contracts” (hereafter referred to as structured contracts) depending upon the structure of the mechanism.

                OneBeacon’s        OneBeacon's market assignments are typically required to be written in the current period, however, in certain cases OneBeacon is required to accept policy assignments at a future date. OneBeacon’sOneBeacon's residual market assignments to be written in the future primarily relate to private passenger automobile assigned risk exposures within the State of New York where several of OneBeacon’sOneBeacon's insurance subsidiaries write voluntary automobile insurance. The share of involuntary written premium for policies assigned by the NYAIP to a particular insurer in a given year is based on the proportion of the total voluntary writings in New York two years prior. Anticipated losses associated with future market assignments are recognized in accordance with SFAS No. 5, “Accounting"Accounting for Contingencies”Contingencies", when the amount of such anticipated losses is determined to be probable and can be reasonably estimated.

                Insurance-Related Assessments

                Insurance-Related Assessments

                Under existing guaranty fund laws in all states, insurers licensed to do business in those states can be assessed for certain obligations of insolvent insurance companies to policyholders and claimants. In accordance with Statement of Position 97-3, “Accounting"Accounting by Insurance and Other Enterprises for Insurance-Related Assessments” (“Assessments" ("SOP 97-3”97-3"), White Mountains’Mountains' insurance subsidiaries record guaranty fund assessments when it is probable that an assessment will be made and the amount can be reasonably estimated.


                Reserves for Structured Contracts

                The reserve for structured contracts represents deposit liabilities for reinsurance contracts that do not satisfy the conditions for reinsurance accounting established in SFAS 113.

                For insurance and reinsurance contracts that transfer only significant timing risk or that transfer neither significant timing risk nor significant underwriting risk, the amount of the deposit asset or liability is adjusted at the balance sheet date by calculating the effective yield on the deposit to reflect actual payments to date and expected future payments. Changes in the carrying amounts are reported as a component of net investment income. Fees related to these contracts are recorded as investment income and are earned using the effective yield method or evenly over the life of the contract dependent upon contract terms.

                Deferred Software Costs

                White Mountains capitalizes costs related to computer software developed for internal use during the application development stage of software development projects in accordance with Statement of Position 98-1, “Accounting"Accounting for the Costs of Computer Software Developed or Obtained for Internal Use”Use". These costs generally consist of certain external, payroll and payroll-related costs. White Mountains begins amortization of these costs once the project is completed and ready for its intended use. Amortization is on a straight-line basis and over a useful life of three to five years. At December 31, 20062007 and 2005,2006, White Mountains had unamortized deferred software costs of $43.9$40.4 million and $50.2$43.9 million.


                Federal and foreign income taxes

                The majority of White Mountains’Mountains' subsidiaries file consolidated tax returns in the United States. Income earned or losses generated by companies outside the United States are generally subject to an overall effective tax rate lower than that imposed by the United States.

                Deferred tax assets and liabilities are recorded when a difference between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts for tax purposes exists, and for other temporary differences as defined by SFAS No. 109, “Accounting"Accounting for Income Taxes”Taxes". The deferred tax asset or liability is recorded based on tax rates expected to be in effect when the difference reverses. The deferred tax asset is recognized when it is more likely than not that it will be realized.

                Foreign currency exchange

                The U.S. dollar is the functional currency for all of the Company’sCompany's businesses except for the foreign reinsurance operations of Folksamerica, Sirius and WMRUS and certain other smaller international activities. The national currencies of the subsidiaries are their functional currencies since their business is primarily transacted in such local currency. White Mountains also invests in securities denominated in foreign currencies. Assets and liabilities recorded in these foreign currencies are translated into U.S. dollars at exchange rates in effect at the balance sheet date, and revenues and expenses are converted using the average exchange rates for the period. Net foreign exchange gains and losses arising from the translation are generally reported in shareholders’shareholders' equity, in accumulated other comprehensive income or loss, net of tax.

                Assets and liabilities relating to foreign operations are translated into the functional currency using current exchange rates; revenues and expenses are translated into the functional currency using the exchange rate of the transaction day. The resulting exchange gains and losses are reported as a component of net income in the period in which they arise. As of December 31, 20062007 and 2005,2006, White Mountains had an after-tax unrealized foreign currency translation gain/(loss)gain of $99.3 million, net of minority interest of $(.1) million, and $37.2 million, net of minority interest of $.7 million, and $(21.8) million, respectively, recorded on its consolidated balance sheet.

                The following rates of exchange for the U.S. dollar have been used for the most significant operations:

                 

                 

                Opening Rate

                 

                Closing Rate

                 

                Opening Rate

                 

                Closing Rate

                 

                Currency

                 

                2006

                 

                2006

                 

                2005

                 

                2005

                 

                Swedish Krona

                 

                7.9603

                 

                6.8640

                 

                6.6231

                 

                7.9603

                 

                British Pound

                 

                .5798

                 

                .5088

                 

                .5218

                 

                .5798

                 

                Canadian Dollar

                 

                1.1647

                 

                1.1603

                 

                1.2132

                 

                1.1647

                 

                Earnings per share

                Basic earnings per share amounts are based on the weighted average number of common shares outstanding excluding unearned restricted common shares (“Restricted Shares”), which are being fully expensed over the vesting period and were anti-dilutive for all periods presented. Diluted earnings per share amounts are based on the weighted average number of common shares and the net effect of potentially dilutive common shares outstanding, based on the treasury stock method. The following table outlines the Company’s computation of earnings per share for the years ended December 31, 2006, 2005 and 2004:

                Currency

                 Opening Rate 2007
                 Closing Rate 2007
                 Opening Rate 2006
                 Closing Rate 2006
                Swedish Krona 6.8640 6.4304 7.9603 6.8640
                British Pound .5088 .4999 .5798 .5088
                Canadian Dollar 1.1603 .9792 1.1647 1.1603

                 

                 

                Year Ended December 31,

                 

                 

                 

                2006

                 

                2005

                 

                2004

                 

                Basic earnings per share numerators (in millions):

                 

                 

                 

                 

                 

                 

                 

                Income before extraordinary item

                 

                $

                651.8

                 

                $

                290.1

                 

                $

                238.2

                 

                Extraordinary item - excess of fair value of acquired net assets over cost

                 

                21.4

                 

                 

                180.5

                 

                Net income

                 

                $

                673.2

                 

                $

                290.1

                 

                $

                418.7

                 

                Diluted earnings per share numerators (in millions):

                 

                 

                 

                 

                 

                 

                 

                Income before extraordinary item

                 

                $

                651.8

                 

                $

                290.1

                 

                $

                238.2

                 

                Other effects on diluted earnings (1)

                 

                 

                (3.5

                )

                (0.9

                )

                Income before extraordinary item

                 

                $

                651.8

                 

                $

                286.6

                 

                $

                237.3

                 

                Extraordinary item - excess of fair value of acquired net assets over cost

                 

                21.4

                 

                 

                180.5

                 

                Adjusted net income

                 

                $

                673.2

                 

                $

                286.6

                 

                $

                417.8

                 

                Basic earnings per share denominators (in thousands):

                 

                 

                 

                 

                 

                 

                 

                Average common shares outstanding during the period

                 

                10,780

                 

                10,774

                 

                9,916

                 

                Average unearned restricted common shares

                 

                (11

                )

                (13

                )

                (14

                )

                Basic earnings per share denominator

                 

                10,769

                 

                10,761

                 

                9,902

                 

                Diluted earnings per share denominator (in thousands):

                 

                 

                 

                 

                 

                 

                 

                Average common shares outstanding during the period

                 

                10,780

                 

                10,774

                 

                9,916

                 

                Average unearned restricted shares (2)

                 

                 

                (13

                )

                (14

                )

                Average outstanding dilutive options and warrants to acquire common shares (3)

                 

                23

                 

                33

                 

                565

                 

                Diluted earnings per share denominator

                 

                10,803

                 

                10,794

                 

                10,467

                 

                Basic earnings per share (in dollars):

                 

                 

                 

                 

                 

                 

                 

                Income before extraordinary item

                 

                $

                60.52

                 

                $

                26.96

                 

                $

                24.05

                 

                Extraordinary item -excess of fair value of acquired net assets over cost

                 

                1.99

                 

                 

                18.23

                 

                Net income

                 

                $

                62.51

                 

                26.96

                 

                $

                42.28

                 

                Diluted earnings per share (in dollars):

                 

                 

                 

                 

                 

                 

                 

                Income before extraordinary item

                 

                $

                60.33

                 

                26.56

                 

                $

                22.67

                 

                Extraordinary item - excess of fair value of acquired net assets over cost

                 

                1.99

                 

                 

                17.25

                 

                Net income

                 

                $

                62.32

                 

                26.56

                 

                $

                39.92

                 


                (1)     The diluted earnings per share numerator for the year ended December 31, 2005 has been adjusted to exclude an income statement credit associated with outstanding options to acquire common shares (see footnote 3 below). The diluted earnings per share numerator for the year ended December 31, 2004 has been adjusted to exclude a portion of White Mountains’ equity in earnings from Montpelier Re brought about by outstanding warrants and options to acquire common shares of Montpelier Re that are in-the-money. As of March 31, 2004, White Mountains changed its method of accounting for its investment in Montpelier Re from equity accounting to fair value, therefore, this equity adjustment is not applicable to periods beginning after such date.

                (2)             Restricted Shares cliff vest on a stated anniversary date. In accordance with the adoption of FAS No. 123(R), the diluted earnings per share denominator adjustment is limited to unearned Restricted Shares measured as if such Restricted Shares are earned ratably.

                (3)             The diluted earnings per share denominator for the year ended December 31, 2006 includes the effects of options to acquire 32,596 common shares at an average strike price of $154.05 per common share. The diluted earnings per share denominator for the year ended December 31, 2005 includes the effects of options to acquire 42,910 common shares at an average strike price of $145.33 per common share. The diluted earnings per share denominator for the year ended December 31, 2004 includes the dilutive effects of average outstanding warrants to acquire 852,678 common shares at an average strike price of $173.99 per common share. The warrants were fully exercised on June 29, 2004, therefore this adjustment is not applicable for periods after such date.


                Variable Interest Entities

                Variable interest entities (“VIEs”("VIEs") are entities that lack one or more of the characteristics of a voting interest entity. A controlling financial interest in a VIE is present when an entity has a variable interest, or a combination of variable interests, that will absorb a majority of the VIE’sVIE's expected losses, receive a majority of the VIE’sVIE's expected residual returns, or both. The entity with a controlling financial interest is the primary beneficiary and consolidates the VIE.

                In accordance with the Financial Accounting Standards Board (“FASB”("FASB") Interpretation No. 46-R, “Consolidation"Consolidation of Variable Interest Entities” (“Entities" ("FIN 46-R”46-R"), White Mountains consolidates VIEs for which it is the primary beneficiary. White Mountains determines whether or not it is the primary beneficiary of a VIE by first performing a qualitative analysis of the VIE that includes a review of, among other factors, its capital structure, contractual terms, which interest creates or absorbs variability, related party relationships and the design of the VIE. Where qualitative analysis is not conclusive, White Mountains performs a quantitative analysis to calculate whether White Mountains’Mountains' financial interest in the VIE is large enough to absorb a majority of the VIE’sVIE's expected losses, receive a majority of the VIE’sVIE's expected returns, or both.

                Mandatorily Redeemable Preferred Stock

                White Mountains has two classes of mandatorily redeemable preferred stock of subsidiaries which are considered noncontrolling interests and have been recorded as liabilities at their historical carrying values. Dividends and accretion on White Mountains’Mountains' mandatorily redeemable preferred stock have been recorded as interest expense. (See Note 10)13).

                Minority Interest

                Minority interests consist of the ownership interests of noncontrolling shareholders in consolidated subsidiaries, and are presented separately on the balance sheet. The portion of income attributable to minority interests is presented net of related income taxes in the statement of income and comprehensive income. The change in unrealized investment gains, foreign currency translation and the change in the fair value of the cash flowinterest rate swap to hedge OneBeacon's exposure to variability in the interest rate on its mortgage note are presented in accumulated other comprehensive income is net of minority interest. The percentage of the noncontrolling shareholders' ownership interest in OneBeacon Ltd. at December 31, 2007 and December 31, 2006 was 27.1% and 27.6%.

                        White Mountains began to present minority interest subsequent to the OneBeacon Offering. The portion of income attributable to minority interest in certain limited partnership investments has been reclassified to conform with the presentation of the minority interest portion.in OneBeacon Ltd.

                        On May 24, 2007, White Mountains Re Group, Ltd. ("WMRe Group"), an intermediate holding company of White Mountains Re, issued 250,000 non-cumulative perpetual preference shares with a $1,000 per share liquidation preference ("the WMRe Preference Shares"). Proceeds of $245.7 million, net of $4.3 million of issuance costs and commissions, were received from the issuance. These shares were issued in an offering that was exempt from the registration requirements of the Securities Act of 1933. Holders of the WMRe Preference Shares receive dividends on a non-cumulative basis when and if declared by WMRe Group. The holders of the WMRe Preference Shares have the right to elect two directors to WMRe Group's board in the event of non-payment of dividends for six quarterly dividend periods. The right ceases upon the payment of dividends for four quarterly periods or the redemption of the WMRe Preference Shares. In addition, WMRe Group may not declare or pay dividends on its common shares (other than stock dividends and dividends paid for purposes of any employee benefit plans of WMRe Group and its subsidiaries) unless it is current on its most recent dividend period. The dividend rate is fixed at an annual rate of 7.506% until June 30, 2017. After June 30, 2017, the dividend rate will be paid at a floating annual rate, equal to the greater of 3 month LIBOR plus 3.20% or 7.506%. The WMRe Preference Shares are redeemable solely at the discretion of WMRe Group on or after June 30, 2017 at their liquidation preference of $1,000 per share, plus any declared but unpaid dividends. Prior to June 30, 2017, WMRe Group may elect to redeem the WMRe Preference Shares at an amount equal to the greater of 1) the aggregate liquidation preference of the shares to be redeemed and 2) the sum of the present values of the aggregate liquidation preference of the shares to be redeemed and the remaining scheduled dividend payments on the shares to be redeemed (excluding June 30, 2017), discounted to the redemption date on a semi-annual basis at a rate equal to the rate on a comparable treasury issue, plus 45 basis points. In the event of liquidation of WMRe Group, the holders of the WMRe Preference Shares would have preference over the common shareholders and would receive a distribution equal to the liquidation preference per share, subject to availability of funds. The WMRe Preference Shares and dividends thereon are included in minority interest on the balance sheet and as minority interest expense on the statement of income and comprehensive income, respectively.


                Recently Adopted Changes in Accounting Principles

                Federal, State and Foreign Income Taxes

                Share-Based Compensation

                In December 2004, the Financial Accounting Standards Board issued Statement of Financial Accounting Standard (“FAS”) No. 123 (Revised), “Share-Based Payment” (“FAS 123R”), which is a revision to FAS 123 and supersedes Accounting Principles Board Opinion No. 25, “Accounting for Stock Issued to Employees” (“APB 25”), and related interpretations, including        On January 1, 2007 White Mountains adopted FASB Interpretation No. 28, “Accounting48,Accounting for Stock Appreciation RightsUncertainty in Income Taxes ("FIN 48"). FIN 48 prescribes when the impact of a given tax position should be recognized and Other Variable Stock Optionshow it should be measured. Under the new guidance, recognition is based upon whether or Award Plans” (“FIN 28”). Effective January 1, 2006,not a company determines that it is more likely than not that a tax position will be sustained upon examination based upon the technical merits of the position. In evaluating the more-likely-than-not recognition threshold, White Mountains adopted FAS 123Rmust presume that the tax position will be subject to account for its share-based compensation underexamination by a taxing authority with full knowledge of all relevant information. If the modified prospective method of adoption. Under this method of adoption, FAS 123R applies to new grants of share-based awards, awards modified afterrecognition threshold is met, then the effective date and the remaining portion of the fair value of the unvested awardstax position is measured at the largest amount of benefit that is more than 50% likely of being realized upon ultimate settlement.

                        In connection with the adoption date. The unvested portion of FIN 48, White Mountains incentive stock options (“Incentive Options”), restricted common share awards (“Restricted Shares”) and performance share awards outstanding as of January 1, 2006, as well as new awards, are subject to the fair value measurement and recognition requirements of FAS 123R.

                Prior to adoption of FAS 123R, White Mountains accounted for performance shares, Restricted Shares and Incentive Options under the recognition and measurement principles of APB 25 and FIN 28, and adopted the disclosure provisions of FAS 123. Under APB 25 and FIN 28,recognized a $.2 million decrease in the liability for the compensation cost for performance share awards was measured each period based upon the current market priceunrecognized tax benefits, primarily as a result of the underlying common shares. The compensation cost recognized for White Mountains’ Restricted Shares under APB 25 was based upon fair valuereductions in its estimates of the award at the date of issuance and was charged to compensation expense ratably over the service period. Forfeitures were recognized as they occurred. Upon adoption of FAS 123R, an estimate of future forfeitures was incorporated into the determination of the compensation cost for performance shares and Restricted Shares.accrued interest. The effect of this change was immaterial.


                White Mountains’ Incentive Options have an escalating exercise price and vest on a pro rata basis over the service period. As a result, the Company’s outstanding Incentive Options were accounted for as variable awards under FIN 28, with compensation expense charged to earnings over the service period based on the intrinsic value of the underlying common shares and with forfeitures recognized as they occurred. Upon adoption of FAS 123R, the grant date fair value of the awards as originally disclosed for FAS 123, adjusted for estimated future forfeitures, became the basis for recognition of compensation expense for the Incentive Options.

                The following table illustrates the pro forma effect on net income and earnings per share for the years ended December 31, 2005 and 2004 as if the Company had applied the fair value recognition provisions of FAS 123 to its Incentive Options at those times.

                 

                Year Ended December 31,

                 

                Millions, except per share amounts

                 

                2005

                 

                2004

                 

                Net income, as reported

                 

                $

                290.1

                 

                $

                418.7

                 

                Incentive Option expense (income) included in reported net income

                 

                (3.5

                )

                9.0

                 

                Incentive Option expense determined under fair value based method

                 

                (.1

                )

                (.1

                )

                Net income, pro forma

                 

                $

                286.5

                 

                $

                427.6

                 

                Earnings per share:

                 

                 

                 

                 

                 

                Basic - as reported

                 

                $

                26.96

                 

                $

                42.28

                 

                Basic - pro forma

                 

                26.63

                 

                43.18

                 

                Diluted - as reported

                 

                26.56

                 

                39.92

                 

                Diluted - pro forma

                 

                26.56

                 

                40.77

                 

                Hybrid Financial Instruments

                On February 16, 2006, the FASB issued FAS No. 155, “Accounting for Certain Hybrid Instruments, an amendment to Statement Nos. 133 and 140” (“FAS 155”). The Statement eliminates the requirement to bifurcate financial instruments with embedded derivatives if the holder of the instrument elects to account for the entire instrument on a fair value basis. Changes in fair value arehas been recorded as realized gains. The fair value election may be applied upon adoption of the statement for hybrid instruments that had been bifurcated under FAS 133 prioran adjustment to adoption. The Statement is effective for fiscal years commencing after September 15, 2006 with early adoption permitted as of the beginning of an entity’s fiscal year.opening retained earnings.

                White Mountains adopted FAS 155 effective January 1, 2006. See Convertible bonds section of this note for discussion of effect of adoption.

                Defined Benefit Pension and Other Postretirement Plans

                In September 2006, the FASB issued Statement of Financial Accounting Standards No. 158,Employers’Employers' Accounting for Defined Benefit Pension and Other Postretirement Plans(“ ("FAS 158”158") which amends FASB Statement Nos. 87, 88, 106 and 132(R). The Statement requires an employer that sponsors a defined benefit plan to recognize the funded status of a benefit plan, measured as the difference between plan assets at fair value and the projected benefit obligation (for defined benefit pension plans) or the accumulated benefit obligation (for other postretirement benefit plans) in its statement of financial position. The Statement also requires recognition of amounts previously deferred and amortized under FAS 87 and FAS 106 in other comprehensive income in the period in which they occur. Under the new Statement, plan assets and obligations must be measured as of the fiscal year end. The recognition provisions of the Statement are effective for fiscal years ending after December 15, 2006. The measurement provisions of the Statement are effective for fiscal years ending after December 15, 2008. White Mountains recognized an increase to ending accumulated other comprehensive income of $4.1 million upon adoption of the recognition provisions of FAS 158 at December 31, 2006.

                F-15




                Share-Based Compensation

                        In December 2004, the Financial Accounting Standards Board issued Statement of Financial Accounting Standard ("FAS") No. 123 (Revised), "Share-Based Payment" ("FAS 123R"), which is a revision to FAS 123 and supersedes Accounting Principles Board Opinion No. 25, "Accounting for Stock Issued to Employees" ("APB 25"), and related interpretations, including FASB Interpretation No. 28, "Accounting for Stock Appreciation Rights and Other Variable Stock Options or Award Plans" ("FIN 28"). Effective January 1, 2006, White Mountains adopted FAS 123R to account for its share-based compensation under the modified prospective method of adoption. Under this method of adoption, FAS 123R applies to new grants of share-based awards, awards modified after the effective date and the remaining portion of the fair value of the unvested awards at the adoption date. The unvested portion of White Mountains incentive stock options ("Incentive Options"), restricted common share awards ("Restricted Shares") and performance share awards outstanding as of January 1, 2006, as well as new awards, are subject to the fair value measurement and recognition requirements of FAS 123R.

                        Prior to adoption of FAS 123R, White Mountains accounted for performance shares, Restricted Shares and Incentive Options under the recognition and measurement principles of APB 25 and FIN 28, and adopted the disclosure provisions of FAS 123. Under APB 25 and FIN 28, the liability for the compensation cost for performance share awards was measured each period based upon the current market price of the underlying common shares. The compensation cost recognized for White Mountains' Restricted Shares under APB 25 was based upon fair value of the award at the date of issuance and was charged to compensation expense ratably over the service period. Forfeitures were recognized as they occurred. Upon adoption of FAS 123R, an estimate of future forfeitures was incorporated into the determination of the compensation cost for performance shares and Restricted Shares. The effect of this change was immaterial.

                        White Mountains' Incentive Options have an escalating exercise price and vest on a pro rata basis over the service period. As a result, the Company's outstanding Incentive Options were accounted for as variable awards under FIN 28, with compensation expense charged to earnings over the service period based on the intrinsic value of the underlying common shares and with forfeitures recognized as they occurred. Upon adoption of FAS 123R, the grant date fair value of the awards, adjusted for estimated future forfeitures, became the basis for recognition of compensation expense for the Incentive Options.


                        The following table illustrates the pro forma effect on net income and earnings per share for the years ended December 31, 2005 as if the Company had applied the fair value recognition provisions of FAS 123 to its Incentive Options at those times.

                Millions, except per share amounts

                 Year Ended December 31, 2005
                 
                Net income, as reported $290.1 
                 Incentive Option expense (income) included in reported net income  (3.5)
                 Incentive Option expense (income) determined under fair value based method  (.1)
                  
                 
                Net income, pro forma $286.5 
                  
                 
                Earnings per share:    
                  Basic—as reported $26.96 
                  Basic—pro forma  26.63 
                  Diluted—as reported  26.56 
                  Diluted—pro forma  26.56 

                Hybrid Financial Instruments

                        On February 16, 2006, the FASB issued FAS No. 155, "Accounting for Certain Hybrid Instruments, an amendment to Statement Nos. 133 and 140" ("FAS 155"). The Statement eliminates the requirement to bifurcate financial instruments with embedded derivatives if the holder of the instrument elects to account for the entire instrument on a fair value basis. Changes in fair value are recorded as realized gains. The fair value election may be applied upon adoption of the statement for hybrid instruments that had been bifurcated under FAS 133 prior to adoption. The Statement is effective for fiscal years commencing after September 15, 2006 with early adoption permitted as of the beginning of an entity's fiscal year.

                        White Mountains adopted FAS 155 effective January 1, 2006. See Convertible bonds section of this note for discussion of effect of adoption.

                Recent Accounting Pronouncements

                Fair Value Measurements

                In September 2006, the FASB issued Statement of Financial Accounting Standards No. 157,Fair Value Measurements(“ ("FAS 157”157"). The Statement provides a revised definition of fair value and guidance on the methods used to measure fair value. The Statement also expands financial statement disclosure requirements for fair value information. The Statement establishes a fair value hierarchy that distinguishes between assumptionsinputs based on market data from independent sources (“("observable inputs”inputs") and a reporting entity’sentity's internal assumptions based upon the best information available when external market data is limited or unavailable (“("unobservable inputs”inputs"). The fair value hierarchy in FAS 157 prioritizes inputs within three levels. Quoted prices in active markets have the highest priority (Level 1) followed by observable inputs other than quoted prices (Level 2) and unobservable inputs having the lowest priority (Level 3). The guidance in FAS 157 is applicable to derivatives as well as other financial instruments measured at fair value and nullifies the guidance in EITF 02-3, FAS 133 and FAS 155 that provided for the deferral of gains at the date of initial measurement. The Statement is effective for financial statements issued for fiscal years beginning after November 15, 2007 with earlier application allowed for entities that have not issued financial statements in the fiscal year of adoption.and must be adopted prospectively. White Mountains haswill adopt FAS 157 effective January 1, 2008. Upon adoption of FAS 157 White Mountains expects that with the exception of its investments in hedge funds and private equity funds, its fair value measurements will not yet determinedchange materially. White Mountains holds a number of investments in hedge funds and private equity investment partnerships, the carrying value of which may be affected by the effect of adoption of FAS 157 by those investment partnerships. The hedge funds and private equity funds that the Company holds investments in have not yet provided an assessment of the effect of adoption of FAS 157. As a result, White Mountains is not yet able to determine the potential effect of adoption on the carrying value of its financial condition, results of operations or cash flows.investments in hedge funds and private equity funds.


                Fair Value Option

                Accounting for Uncertainty in Income Taxes

                In July 2006,February 2007, the FASB issued FASB InterpretationStatement of Financial Accounting Standards No. 48, “Accounting159,The Fair Value Option for Uncertainty in Income Taxes” (“FIN 48”Financial Assets and Financial Liabilities ("FAS 159"). FIN 48 isThe Statement allows companies to make an interpretation of FAS 109, “Accounting for Income Taxes.”election, on an individual instrument basis, to report financial assets and liabilities at fair value. The Interpretation prescribes whenelection must be made at the benefitinception of a given tax position shouldtransaction and may not be recognizedreversed. The election may also be made for existing financial assets and how it shouldliabilities at the time of adoption. Unrealized gains and losses on assets or liabilities for which the fair value option has been elected are to be measured. FIN 48 alsoreported in earnings. The Statement requires additional disclosures. Underdisclosures for instruments for which the new guidance, recognitionelection has been made, including a description of management's reasons for making the election. The Statement is based upon whether or not a company determines that it is more likely than not that a tax positioneffective for fiscal years beginning after November 15, 2007 and will be sustained upon examination based uponadopted prospectively. White Mountains will adopt FAS 159 effective January 1, 2008. The Company has decided to make the technical meritsfair value election for its portfolio of available for sale securities, its investments in investment partnerships and for its assumed variable annuity GMDB guarantee liabilities. Upon adoption, White Mountains will increase retained earnings and decrease accumulated other comprehensive income by $208.9 million to reclassify net unrealized gains and net unrealized foreign currency translation gains related to available for sale securities. In addition, White Mountains expects to record a decrease of less than $1 million to retained earnings as of January 1, 2008 related to the position.combined effect of adopting FAS 157 and FAS 159 for its variable annuity liabilities. Subsequent to adoption, the Company will report changes in fair value in pre-tax income rather than through other comprehensive income, net of tax. The Company believes that making the election for its portfolio of investment securities and investments in hedge funds and private equity funds will result in reporting its investment results on a basis consistent with one of its operating principles, namely to manage investments for total return. With respect to the variable annuity GMDB guarantees, making the election will result in recognition of changes in fair value on the same basis used by the Company to economically hedge its variable annuity guarantee liabilities.

                Business Combinations and Non-controlling interests

                        In evaluatingDecember 2007, the more-likely-than-not recognition threshold, a company should presume that the tax position will be subjectFASB issued FAS 141 (Revised 2007),Business Combinations ("FAS 141R") and FAS 160,Noncontrolling Interests—an amendment to examination by a taxing authority with full knowledge of all relevant information. If the recognition threshold is met, then the tax position is measured at the largest amount of benefit that is more than 50% likely of being realized upon ultimate settlement. FIN 48 also provides guidance on derecognition, classification, interestARB 51. FAS 141R and penalties, accounting in interim periods, disclosure and transition. The Interpretation isFAS 160 are effective for fiscal years beginning after December 15, 2006.2008. White Mountains expectsis in the process of evaluating the potential effect of adoptionadoption. FAS 141R requires the acquiring company to recognize the fair value of all assets acquired and liabilities assumed at their fair values at the acquisition date, with certain exceptions. This represents a basic change in approach from the old cost allocation method originally described in FAS 141. In addition, FAS 141R changes the accounting for step acquisitions since it requires recognition of all assets acquired and liabilities assumed, regardless of the acquirer's percentage of ownership in the acquired company. This means that the acquirer will measure and recognize all of the assets, liabilities and goodwill, not just the acquirer's share. Assets and liabilities arising from contractual contingencies are to be modestrecognized at the acquisition date, at fair value. Non-contractual contingencies are to be recognized when it is more likely than not that they meet the CON 6 criteria for an asset or liability. Acquisition related costs, such as legal fees and due diligence costs would be expensed and would not be recognized as part of goodwill. Changes in the amount of deferred taxes arising from a business combination are to consist of reclassification of certainbe recognized in either income tax-related liabilitiesor through a change in our statement of financial position and an immaterial effectcontributed capital, depending on the balancecircumstances. Previously under FAS 109, such changes were recognized through goodwill. The classification of retained earnings. White Mountains doesinsurance and reinsurance contracts are re-evaluated at the acquisition date only if their terms were changed in connection with the acquisition.

                        FAS 160 requires all companies to account for minority interests in subsidiaries as equity, clearly identified and presented separately from parent company equity. Once a controlling interest has been acquired, any subsequent acquisitions or dispositions of noncontrolling interest that do not expectresult in a change of control are to be accounted for as equity transactions. Assets and liabilities acquired are measured at fair value only once; at the adoption to have a material effect on its results of operations or cash flows.original acquisition date, i.e., the date at which the acquirer gained control.


                NOTE 2. Significant Transactions

                Share Repurchase

                        On October 26, 2007, White Mountains repurchased 282,341 of its common shares for $500 per share, or $141 million, in a transaction with an institutional investor. On November 26, 2007, White Mountains repurchased an additional 8,500 of its common shares for $500 per share, or $4 million. These transactions were the first repurchases under the previously announced share repurchase plan authorized by White Mountains' Board of Directors on November 17, 2006. There are 709,159 shares remaining for future share repurchases under the plan.

                Mutual Service Casualty

                On December 22, 2006, White Mountains Re completed its acquisition of Mutual Service Casualty Insurance Company (“("Mutual Service Casualty”Casualty"), a runoff insurer formerly affiliated with Country Insurance & Financial Services. As part of a sponsored demutualization and conversion to a stock company, Mutual Service Casualty has been renamed Stockbridge Insurance Company (“Stockbridge”("Stockbridge"). White Mountains Re paid approximately $33.6 million for Stockbridge and recorded an after-tax extraordinary gain of $21.4 million, which represents the excess of fair value of acquired assets over the purchase price. The fair value of net assets acquired were $55.1 million, including $81.0million of cash and investments, $55.5 million of reinsurance recoverables, $12.2 million of deferred tax assets, $91.2 million of loss and LAE reserves and $2.3 million of deferred tax liabilities.

                OneBeacon

                OneBeacon

                On November 14, 2006, in connection with the OneBeacon Offering, White Mountains sold 27.6 million common shares, or 27.6%, of its subsidiary OneBeacon Ltd. for net proceeds of $650.3 million in cash. As a result of the sale, White Mountains recorded a gain of $171.3 million, which represents the excess of the offering proceeds over 27.6% of the book value of OneBeacon at the time of the sale.


                Main Street America

                On October 31, 2006, White Mountains’Mountains' investment in Main Street America Holdings, Inc. (“MSA”("MSA") was restructured. White Mountains received a $70 million cash dividend from MSA, following which White Mountains sold its 50% common stock investment in MSA to Main Street America Group, Inc. (“("the MSA Group”Group") for (i) $70.0 million in 9.0% non-voting cumulative perpetual preferred stock of the MSA Group, and (ii) $24.5 million, or 4.9%, of the common stock of the MSA Group. These transactions resulted in a net after tax realized gain of $8.5 million.

                Sirius America

                On August 3, 2006, White Mountains Re sold its wholly-owned subsidiary, Sirius America, to an investor group for $138.8 million in cash, which was $16.9 million above the book value of Sirius America at the time of the sale. Sirius America is a U.S.-based insurer focused on primary insurance programs that was acquired as part of the acquisition of Sirius Acquisition (defined below).in 2004.

                As part of the transaction, White Mountains acquired an equity interest of approximately 18% in the acquiring entity, Delos, and accounts for Delos under the equity method. White Mountains recognized a gain of $14.0 million($ ($9.1 million after tax) on the sale through other revenues and has deferred $2.9 million ($1.9 million after tax) of the gain related to its remaining equity interest in Delos (See Note 14)17).

                National Farmers Union Property and Casualty Company

                On September 30, 2005, OneBeacon sold National Farmers Union Property and Casualty Company (“NFU”("NFU") to QBE Insurance Group for $138.3 million in cash and recognized a gain of approximately $26.2 million ($21.7 million after-tax) on the sale through other revenues.


                SiriusOther Acquisitions and Dispositions

                On April 16, 2004, White Mountains acquired Sirius from ABB Ltd. for SEK 3.27 billion (approximately $427.5 million based uponOctober 1, 2007, substantially all of the foreign exchange spot rate at the date of acquisition), which included $10.5 million of expenses incurred in connection with the acquisition. The principal companies acquired were Sirius International, Sirius America and Scandinavian Re. Sirius International is domiciled in Sweden and has offices in Belgium, Hamburg, London, Singapore, Stockholm and Zurich. Scandinavian Re is a reinsurance company that has been in run-off since 2002. The Sirius Acquisition was accounted for under the purchase method of accounting and, therefore, the identifiable assets and liabilities of SiriusStockbridge were recorded bytransferred to Folksamerica through a Transfer and Assumption Agreement (the "Portfolio Transfer"). As a result of the Portfolio Transfer, Stockbridge was left with minimum capital and surplus to maintain its licenses. During the fourth quarter of 2007, White Mountains at their fair valuesRe sold its 100% ownership interest in Stockbridge for approximately $26.2 million and recognized a $10.0 million pre-tax gain on April 16, 2004. The processthe sale through other revenues.

                        During the third quarter 2007, OneBeacon sold one of determining the fair value of such assets and liabilities acquired was as follows: (1) the purchase price of Sirius was preliminarily allocated to the acquired assets and liabilities, based on their respective estimated fair values at April 16, 2004; (2) the excess of the estimated fair value of acquired net assets over the purchase price was used to reduce the estimated fair values of all non-current, non-financial assets acquired to zero; and (3) the remaining excess of the estimated fair value of net assets over the purchase price was recorded as an extraordinary gain.

                The fair value of identifiable assets and liabilities acquired on April 16, 2004 were as follows (in millions):

                Fair value of assets acquired

                 

                $

                3,306.9

                 

                Fair value of liabilities acquired

                 

                2,768.0

                 

                 

                 

                 

                 

                Fair value of net assets acquired

                 

                538.9

                 

                 

                 

                 

                 

                Total purchase price, including expenses

                 

                (427.5

                )

                 

                 

                 

                 

                Resulting extraordinary gain

                 

                $

                111.4

                 

                Significant assets and liabilities acquired through Sirius included $1,851.9 million of cash and investments,$790.1 million of funds held by ceding companies, $286.2 million of reinsurance recoverable on paid and unpaid losses, $245.8 million of insurance and reinsurance balances receivable, $1,612.7 million of loss and loss adjustment expense reserves, $432.2 million of reserves for structured settlements, $276.5 million of unearned insurance premiums and $289.4 million of deferred tax liabilities.

                Supplementalunaudited pro forma condensed combined income statement information for the year ended December 31, 2004, which assumes that the Sirius Acquisition had occurred as of January 1, 2004 follows:


                (Unaudited)

                 

                Pro Forma
                Twelve Months
                Ended
                December 31,

                 

                Millions, except per share amounts

                 

                2004

                 

                Total revenues

                 

                $

                4,699.7

                 

                 

                 

                 

                 

                Income before extraordinary items

                 

                $

                273.4

                 

                 

                 

                 

                 

                Net income

                 

                $

                453.9

                 

                 

                 

                 

                 

                Earnings per share:

                 

                 

                 

                 

                Pro forma net income - basic

                 

                $

                45.83

                 

                Pro forma net income - diluted

                 

                $

                43.28

                 

                The unaudited pro forma information presented above for the year ended December 31, 2004 has been suppliedfor comparative purposes only and does not purport to reflect the actual results that would have been reported had theSirius Acquisition been consummated at January 1, 2004. Additionally, such pro forma financial information does not purport to represent results that may occur in the future.

                Symetra

                On August 2, 2004, White Mountains, Berkshire Hathaway Inc. (“Berkshire”) and several other private investors capitalized Symetra in order to purchase the life and investments operations of Safeco Corporation for $1.35 billion. The acquired companies focus mainly on group insurance, individual life insurance, structured settlements and retirement services. Symetra had an initial capitalization of approximately $1.4 billion, consisting of $1,065 million of common equity and $315 million of bank debt. White Mountains invested $194.7 million in Symetra in exchange for 2.0 million common shares of Symetra. In addition, White Mountains and Berkshire each received warrants to acquire an additional 1.1 million common shares of Symetra at $100 per share. White Mountains owns approximately 19% of the outstanding common shares of Symetra, which are accounted for under the equity method, and approximately 24% of Symetra on a fully-converted basis including the warrants, which are accounted for under the provisions of SFAS 133. Three White Mountains designees serve on Symetra’s eight member board of directors.

                White Mountains recorded its initial investment in Symetra by allocating the $194.7 million purchase price between the common shares and the warrants. The allocation was determined by recording the warrants at their fair value of $35.4 million, with the remaining $159.3 million allocated to the common shares. White Mountains then recognized an extraordinary gain of $40.7 million, representing the difference between the initial cost of the common shares and the amount of White Mountains’ equity in the underlying net assets of Symetra, as required by APB 18, “The Equity Method of Accounting for Investments in Common Stock”.

                Sierra Group

                On March 31, 2004, Folksamerica acquired the Sierra Insurance Group companies (the “Sierra Group”), consisting of California Indemnityinactive licensed subsidiaries, American Employers' Insurance Company, and its three subsidiaries, from Nevada-based Sierra Health Services, Inc. Folksamerica paid $76.2 millionto a third party for the Sierra Group, which included $14.2$47.7 million in cash and recorded a $62.0 million purchase note (see Note 6). $58.0 millionpre-tax gain of the purchase note may be adjusted over its six-year term to reflect favorable or adverse loss reserve development on the acquired reserve portfolio and run-off of remaining policies in force (mainly workers compensation business), as well as certain other balance sheet protections. The acquired companies’ net assets at the time of the close were $84.8 million, including $270.3 million of investments, $174.4 million of reinsurance balances recoverable, $406.9 million of loss and loss adjustment expense reserves and $25.1 million of unearned premiums. The acquisition resulted in an $8.6 million extraordinary gain, which$11.3 million.

                        On May 1, 2007, White Mountains sold all of its remaining interest in Montpelier Re, which consisted of 939,039 common shares and warrants to purchase 7,172,376 common shares, for total proceeds of $65.0 million and recognized in the first quarteran after tax loss of 2004.


                Tryg-Baltica$1.8 million.

                On November 11, 2004, Sirius International acquired 100% of Denmark-based Tryg-Baltica Forsikring, internationalt forsikringsselskab A/S (“Tryg-Baltica”). Under the terms of the agreement, Sirius paid approximately DKK 316.3 million ($57.7 million). Following the closing, White Mountains Re placed Tryg-Baltica into run-off, though certain business was renewed by Sirius International. White Mountains Re did not acquire any infrastructure or employees and manages the company’s run-off administration. The acquired companies’ net assets at closing were $77.5 million, including $144.3 million of cash and investments, $86.7 million of receivables, $20.8 million of deposits with insurance companies, $150.8 million of loss and LAE reserves and $36.9 million of unearned insurance premiums. The acquisition resulted in a $19.8 million extraordinary gain, which White Mountains recognized in the fourth quarter of 2004.

                Other Acquisitions and Dispositions

                On September 29, 2006, OneBeacon transferred certain assets and the right to renew existing policies of its Agri division to QBE for $32.0 million in cash and recorded a gain of $30.4 million on the sale through other revenues.

                On September 30, 2005, White Mountains Re sold one of its subsidiaries, California Indemnity Insurance Company, for total proceeds of $19.8 million, $19.3 million of which was paid in cash, and recognized a gain of approximately $5.0 million ($3.3 million after-tax) on the sale through other revenues.

                On August 2, 2005, OneBeacon sold one of its subsidiaries, Traders and Pacific Insurance Company (“TPIC”("TPIC"), to Endurance Reinsurance for $23.4 million in cash and recognized a gain of approximately $8.0 million ($5.2 million after-tax) on the sale through other revenues.

                During the fourth quarter of 2004, OneBeacon sold two of its subsidiaries, Potomac Insurance Company of Illinois for $21.7 million and Western States Insurance Company, as well as its boiler inspection service business, for $15.1 million and recognized combined gains on the sales of $22.1 million through other revenues.

                During the third quarter of 2004, OneBeacon entered into an agreement to sell the renewal rights to most of its pre-Atlantic Mutual (defined below) New York commercial business to Tower Insurance Group. The transaction, effective with December 1, 2004 renewals, impacted $110.0 million of premiums. OneBeacon retained the commercial business acquired from Atlantic Mutual.

                On March 31, 2004, OneBeacon acquired Atlantic Specialty Insurance Company (“Atlantic Specialty”), a subsidiary of Atlantic Mutual Insurance Company (“Atlantic Mutual”), and the renewal rights to Atlantic Mutual’s segmented commercial insurance business, including the unearned premiums on the acquired book (the “Atlantic Specialty Transaction”). The overall gross written premium for this book of business totaled approximately $404 million. Under the terms of the agreement, OneBeacon will pay Atlantic Mutual a renewal commission on the premiums renewed. In connection with its acquisition of Atlantic Specialty, OneBeacon paid $30.1 million in cash and issued a $20.0 million note to the seller. See Note 6.

                During the first quarter of 2004, White Mountains purchased additional warrants to acquire 2,390,786 common shares of Montpelier Re from an existing warrant holder for $54.1 million in cash. Also during the first quarter of 2004, White Mountains sold 4.5 million common shares of Montpelier Re to third parties for net proceeds of $155.3 million. As a result of this sale, as well as changes to the composition of the Board of Directors of both Montpelier Re and White Mountains, White Mountains changed the method of accounting for its remaining common share investment in Montpelier Re as of March 31, 2004 from an equity method investment in an unconsolidated affiliate to a common equity security, which is classified as available for sale and carried at fair value. During the third quarter of 2006, White Mountains sold an additional 5.4 million shares of its common share investment in Montpelier Re to third parties, thereby reducing the total number of Montpelier Re common shares owned by White Mountains to 0.9 million. See Note 5.

                In January 2004, Folksamerica sold Peninsula Insurance Company to the Donegal Group for $23.3 million, or 107.5% of its GAAP book value, resulting in a pre-tax gain of $2.1 million that White Mountains recognized in the first quarter of 2004.


                NOTE 3. Reserves for Unpaid Losses and Loss Adjustment Expenses

                Insurance

                Insurance

                White Mountains’Mountains' insurance subsidiaries establish loss and LAE reserves that are estimates of amounts needed to pay claims and related expenses in the future for insured events that have already occurred. The process of estimating reserves involves a considerable degree of judgment by management and, as of any given date, is inherently uncertain.

                Reserves are typically comprised of (1) case reserves for claims reported and (2) reserves for losses that have occurred but for which claims have not yet been reported, referred to as incurred but not reported (“IBNR”("IBNR") reserves, which include a provision for expected future development on case reserves. Case reserves are estimated based on the experience and knowledge of claims staff regarding the nature and potential cost of each claim and are adjustedas additional information becomes known or payments are made. IBNR reserves are derived by subtracting paid loss and LAE and case reserves from estimates of ultimate loss and LAE. Actuaries estimate ultimate loss and LAE using various generally accepted actuarial methods applied to known losses and other relevant information. Like case reserves, IBNR reserves are adjusted as additional information becomes known or payments are made.

                Ultimate loss and LAE are generally determined by extrapolation of claim emergence and settlement patterns observed in the past that can reasonably be expected to persist into the future. In forecasting ultimate loss and LAE with respect to any line of business, past experience with respect to that line of business is the primary resource, but cannot be relied upon in isolation. White Mountains’Mountains' own experience, particularly claims development experience, such as trends in case reserves, payments on and closings of claims, as well as changes in business mix and coverage limits, is the most important information for estimating its reserves. External data, available from organizations such as statistical bureaus, consulting firms and reinsurance companies, is sometimes used to supplement or corroborate White Mountains’Mountains' own experience, and can be especially useful for estimating costs of new business. For some lines of business, such as “long-tail”"long-tail" coverages discussed below, claims data reported in the most recent accident year is often too limited to provide a meaningful basis for analysis due to the typical delay in reporting of claims. For this type of business, White Mountains uses a selected loss ratio method for the initial accident year or years. This is a standard and accepted actuarial reserve estimation method in these circumstances in which the loss ratio is selected based upon information used in pricing policies for that line of business, as well as any publicly available industry data, such as industry pricing, experience and trends, for that line of business.


                Uncertainties in estimating ultimate loss and LAE are magnified by the time lag between when a claim actually occurs and when it is reported and settled. This time lag is sometimes referred to as the “claim-tail”"claim-tail". The claim-tail for most property coverages is typically short (usually a few days up to a few months). The claim-tail for liability/casualty coverages, such as automobile liability, general liability, products liability, multiple peril coverage, and workers compensation, can be especially long as claims are often reported and ultimately paid or settled years,even decades, after the related loss events occur. During the long claims reporting and settlement period, additional facts regarding coverages written in prior accident years, as well as about actual claims and trends may become known and, as a result, White Mountains may adjust its reserves. If management determines that an adjustment is appropriate, the adjustment is booked in the accounting period in which such determination is made in accordance with GAAP. Accordingly, in the future should reserves need to be increased or decreased from amounts currently established, future results of operations would be negatively or positively impacted, as applicable.

                In determining ultimate loss and LAE, the cost to indemnify claimants, provide needed legal defense and other services for insureds and administer the investigation and adjustment of claims are considered. These claim costs are influenced by many factors that change over time, such as expanded coverage definitions as a result of new court decisions, inflation in costs to repair or replace damaged property, inflation in the cost of medical services and legislated changes in statutory benefits, as well as by the particular, unique facts that pertain to each claim. As a result, the rate at which claims arose in the past and the costs to settle them may not always be representative of what will occur in the future. The factors influencing changes in claim costs are often difficult to isolate or quantify and developments in paid and incurred losses from historical trends are frequently subject to multiple and conflicting interpretations. Changes in coverage terms or claims handling practices may also cause future experience and/or development patterns to vary from the past. A key objective of actuaries in developing estimates of ultimate loss and LAE, and resulting IBNR reserves, is to identify aberrations and systemic changes occurring within historical experience and accurately adjust for them so that the future can be projected reliably. Because of the factors previously discussed, this process requires the use of informed judgment and is inherently uncertain.


                Reinsurance

                Reinsurance

                White Mountains’ Mountains' reinsurance subsidiaries establish loss and LAE reserves that are estimates of amounts needed to pay claims and related expenses in the future for reinsured events that have already occurred. White Mountains’ Mountains' reinsurance subsidiaries also obtain reinsurance whereby another reinsurer contractually agrees to indemnify White Mountains for all or a portion of the reinsurance risks underwritten by White Mountains. Such arrangements, where one reinsurer provides reinsurance to another reinsurer, are usually referred to as “retrocessional reinsurance”"retrocessional reinsurance" arrangements. White Mountains establishes estimates of amounts recoverable from retrocessional reinsurance in a manner consistent with the loss and LAE liability associated with reinsurance contracts offered to its customers (the “ceding companies”"ceding companies"), net of an allowance for uncollectible amounts. Net reinsurance loss reserves represent loss and LAE reserves reduced by retrocessional reinsurance recoverable on unpaid losses.

                Reinsurance loss and LAE reserve estimates reflect the judgment of both the ceding companies and White Mountains, based on the experience and knowledge of their respective claims personnel, regarding the nature and value of the claims. The ceding companies may periodically adjust the amount of the case reserves as additional information becomes known or partial payments are made. Upon notification of a loss from a ceding company, White Mountains establishes case reserves, including LAE reserves, based upon White Mountains’Mountains' share of the amount of reserves established by the ceding company and White Mountains’Mountains' independent evaluation of the loss. Incases where available information indicates that reserves established by the ceding company are inadequate, White Mountains establishes reserves in excess of its share of the reserves established by the ceding company.

                The estimation of net reinsurance loss and LAE reserves is subject to the same factors as the estimation of insurance loss and LAE reserves. In addition to those factors which give rise to inherent uncertainties in establishing insurance loss and LAE reserves, the claim-tail for reinsurers is further extended because claims are first reported through one or more intermediary insurers or reinsurers.


                White Mountains Re establishes loss reserves for White Mountains Re based on a singlean actuarial point estimate, which is management’smanagement's primary consideration in determining its best estimate of ultimate lossesloss and loss adjustment expenses.LAE reserves. This “best estimate”"actuarial point estimate" is derived from a combination of generally accepted actuarial methods. In making its best estimate, management also considers other qualitative factors that may lead to a difference between its best estimate of loss and LAE reserves and the actuarial point estimate. Typically, these factors exist when management and the company's actuaries conclude that there is insufficient historical incurred and paid loss information or that the trends included in the historical incurred and paid loss information are unlikely to repeat in the future. These factors may include, among others, changes in the techniques used to assess underwriting risk, more accurate and detailed levels of data submitted with reinsurance applications, the uncertainty of the current reinsurance pricing environment, the level of inflation in loss costs, changes in ceding company reserving practices, and legal and regulatory developments. For current accident year business, the estimate is based on an expected loss ratio method. The parameters underlying this method are developed during the underwriting and pricing process. Loss ratio expectations are derived for each contract and these are aggregated by class of business and type of contract. These loss ratios are then applied to the actual earned premiums by class and type of business to estimate ultimate losses. Paid losses are deducted to determine loss and loss expenseLAE reserves.

                For prior accident years, White Mountains Re gradually replaces this expected loss ratio approach with estimates based on historical loss reporting patterns. For both current and prior accident years, estimates alsochange when new information becomes available, such as changing loss emergence patterns, or as a result of claim and underwriting audits.

                Once aan actuarial point estimate is established by White Mountains Re, its actuaries estimate loss reserve ranges to measure the sensitivity of the actuarial assumptions used to set the point estimates. These ranges are calculated using similar methods to the point estimate calculation, but with different expected loss ratio and loss reporting pattern assumptions. For the low estimate, more optimistic loss ratios and faster reporting patterns are assumed, while the high estimate uses more conservative loss ratios and slower reporting patterns. These variable assumptions are derived from historical variations in loss ratios and reporting patterns by class and type of business.


                Loss and loss adjustment expense reserve summary

                The following table summarizes the loss and LAE reserve activities of White Mountains’Mountains' insurance and reinsurance subsidiaries for the years ended December 31, 2007, 2006 2005 and 2004:2005:

                 

                 

                Year Ended December 31,

                 

                Millions

                 

                2006

                 

                2005

                 

                2004

                 

                Gross beginning balance

                 

                $

                10,231.2

                 

                $

                9,398.5

                 

                $

                7,728.2

                 

                Less beginning reinsurance recoverable on unpaid losses

                 

                (5,025.7

                )

                (3,797.4

                )

                (3,473.8

                )

                Net loss and LAE reserves

                 

                5,205.5

                 

                5,601.1

                 

                4,254.4

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Loss and LAE reserves sold - Sirius America

                 

                (124.1

                )

                 

                 

                Loss and LAE reserves acquired - Stockbridge (3)

                 

                38.3

                 

                 

                 

                Loss and LAE reserves sold - NFU

                 

                 

                (95.9

                )

                 

                Loss and LAE reserves sold - TPIC

                 

                 

                (11.8

                )

                 

                Loss and LAE reserves acquired - Sirius (1)

                 

                 

                 

                1,328.9

                 

                Loss and LAE reserves acquired - Sierra Insurance Group (1)

                 

                 

                 

                244.4

                 

                Loss and LAE reserves acquired - Tryg-Baltica (1)

                 

                 

                 

                136.8

                 

                Loss and LAE reserves consolidated - New Jersey Skylands Insurance Association

                 

                 

                 

                62.1

                 

                Loss and LAE reserves sold - Peninsula Insurance Company

                 

                 

                 

                (17.0

                )

                 

                 

                 

                 

                 

                 

                 

                 

                Losses and LAE incurred relating to:

                 

                 

                 

                 

                 

                 

                 

                Current year losses

                 

                2,208.7

                 

                2,697.1

                 

                2,476.0

                 

                Prior year losses (2)

                 

                244.0

                 

                161.1

                 

                115.1

                 

                Total incurred losses and LAE

                 

                2,452.7

                 

                2,858.2

                 

                2,591.1

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Accretion of fair value adjustment to net loss and LAE reserves

                 

                24.5

                 

                36.9

                 

                43.3

                 

                Foreign currency translation adjustment to net loss and LAE reserves

                 

                35.2

                 

                (39.4

                )

                48.0

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Loss and LAE paid relating to:

                 

                 

                 

                 

                 

                 

                 

                Current year losses

                 

                (845.5

                )

                (848.7

                )

                (926.3

                )

                Prior year losses

                 

                (2,025.1

                )

                (2,294.9

                )

                (2,164.6

                )

                Total loss and LAE payments

                 

                (2,870.6

                )

                (3,143.6

                )

                (3,090.9

                )

                 

                 

                 

                 

                 

                 

                 

                 

                Net ending balance

                 

                4,761.5

                 

                5,205.5

                 

                5,601.1

                 

                Plus ending reinsurance recoverable on unpaid losses

                 

                4,015.7

                 

                5,025.7

                 

                3,797.4

                 

                Gross ending balance

                 

                $

                8,777.2

                 

                $

                10,231.2

                 

                $

                9,398.5

                 

                 
                 Year Ended December 31,
                 
                Millions

                 
                 2007
                 2006
                 2005
                 
                Gross beginning balance $8,777.2 $10,231.2 $9,398.5 
                 Less beginning reinsurance recoverable on unpaid losses  (4,015.7) (5,025.7) (3,797.4)
                  
                 
                 
                 
                Net loss and LAE reserves  4,761.5  5,205.5  5,601.1 
                Loss and LAE reserves sold—Sirius America    (124.1)  
                Loss and LAE reserves acquired—Stockbridge(1)    38.3   
                Loss and LAE reserves sold—NFU      (95.9)
                Loss and LAE reserves sold—TPIC      (11.8)

                Losses and LAE incurred relating to:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 Current year losses  2,422.8  2,208.7  2,697.1 
                 Prior year losses  (16.4) 244.0  161.1 
                  
                 
                 
                 
                Total incurred losses and LAE  2,406.4  2,452.7  2,858.2 

                Net change in loss reserves—Sierra Insurance Group(2)

                 

                 

                (9.1

                )

                 


                 

                 

                22.8

                 
                Accretion of fair value adjustment to net loss and LAE reserves  21.4  24.5  36.9 
                Foreign currency translation adjustment to net loss and LAE reserves  39.7  35.2  (39.4)

                Loss and LAE paid relating to:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 Current year losses  (1,080.6) (845.5) (848.7)
                 Prior year losses  (1,545.1) (2,025.1) (2,317.7)
                  
                 
                 
                 
                Total loss and LAE payments  (2,625.7) (2,870.6) (3,166.4)

                Net ending balance

                 

                 

                4,594.2

                 

                 

                4,761.5

                 

                 

                5,205.5

                 
                 Plus ending reinsurance recoverable on unpaid losses  3,467.9  4,015.7  5,025.7 
                  
                 
                 
                 
                Gross ending balance $8,062.1 $8,777.2 $10,231.2 
                  
                 
                 
                 

                (1)
                Reinsurance recoverables on unpaid losses acquired in the Sirius, Sierra Group and Tryg-Baltica acquisitionsStockbridge acquisition totalled $283.8 million, $162.5 million and $14.0$52.9 million.



                (2)
                During the years ended December 31, 20052007, 2006 and 2004,2005, White Mountains Re recorded $(9.1) million, $0 and $22.8 million and $10.0 million of (favorable)/unfavorable development on its workers compensation reserves relating to its Sierra Insurance Group acquisition, whichacquisition. This loss and LAE development was offset in incurred losses and LAE dollar-for-dollar by a reductionchange in the principal amount of the adjustable note that White Mountains Re issued as part of the financing of that acquisition (See Note 6).

                  (3)          Reinsurance recoverables on unpaid losses acquired in the Stockbridge acquisition totalled $52.9 million.


                  Loss and LAE development—2007

                        During the year ended December 31, 2007, White Mountains experienced $16.4 million of net favorable development -on prior accident year loss reserves. Esurance experienced net unfavorable development of $29.6 million that primarily related to bodily injury claims from prior accident years. White Mountains Re experienced net unfavorable development of $9.1 million that primarily related to an increase in asbestos and environmental related exposures offset by favorable development in property lines. The Other Operations segment experienced net favorable development of $6.8 million primarily due to the settlement of a large claim at British Insurance Company.

                        OneBeacon experienced $48.3 million of favorable development on prior accident year loss reserves that was primarily related to lower than expected frequency for professional liability in specialty lines and lower than expected severity for automobile liability in personal lines, offset by unfavorable development for multiple peril and workers compensation, primarily for accident years 2001 and prior. Specifically, at December 31, 2006, management continued to expect losses to emerge in the professional liability business, which is included in the general liability line of business, in line with initial expectations based on market analysis when this business was initiated in 2002 and 2003. During 2007, losses continued to be significantly lower than initial expectations. As a result, management lowered its selected reserves on the earliest years which affected more recent years as total loss expectations for those years are based in part on prior years' results. Management had implicitly assumed at December 31, 2006 that IBNR and known case development related to personal automobile liability would be approximately 49% of actual case reserves for the 2002 and subsequent years. During 2007, case incurred loss and allocated LAE ("ALAE") was 28% of the


                future expected development, which was smaller than expected for this relatively short-tail line of business. As a result, management decreased IBNR reserves for this line so that as of December 31, 2007, the IBNR was approximately 49% relative to the remaining case reserves. Prior to decreasing the IBNR reserves, the IBNR as of December 31, 2007 was approximately 74% of remaining case reserves. Management had implicitly assumed at December 31, 2006 that the IBNR and know case development related to workers compensation and multiple peril liability would be approximately 15% of actual case reserves for the 2001 and prior accident years. During 2007, case incurred loss and ALAE was 47% of the entire future expected development, which was unusually large for these long tail lines of business. As a result, management increased IBNR reserves for these lines so that as of December 31, 2007 the IBNR was approximately 28% relative to the remaining case reserves.

                  Loss and LAE development—2006

                During the year ended December 31, 2006, White Mountains experienced $244.0 million of unfavorable development on prior accident loss reserves, of which $218.0 million was experienced by White Mountains Re and $22.9 million was experienced by OneBeacon. The adverse development was primarily related to adverse development on loss and LAE reserves previously established for Katrina, Rita and Wilma.

                During 2006, following the receipt of new claims information reported from several ceding companies and subsequent reassessment of the ultimate loss exposures, White Mountains Re increased its gross loss estimates for hurricanes Katrina, Rita and Wilma by $201 million.

                The vast majority of the newly reported claims were on off-shore energy and marine exposures, and as a result, Folksamerica Re set its gross loss and LAE reserves in 2006 on off-shore energy and marine exposures for hurricanes Katrina and Rita at full contract limits and also increased reserves on other exposures affected by hurricanes Katrina, Rita and Wilma.

                Under the terms of Folksamerica Re’sFolksamerica's 2005 quota share reinsurance treaty with Olympus Reinsurance Company (“Olympus” ("Olympus"), $139 million of these losses, net of reinstatement premiums, recorded in 2006 were ceded to Olympus. However, Folksamerica Holding Company ("Folksamerica Holdings") entered into an indemnity agreement with Olympus, under which it agreed to reimburse Olympus for up to $137 million of these losses, which was recorded as loss and LAE expense during 2006.

                  Loss and LAE development - development—2005

                During the year ended December 31, 2005, White Mountains experienced $161.1 million of unfavorable development on prior accident year loss reserves, of which $95.0 million was experienced at OneBeacon and approximately $51.8 million was experienced by White Mountains Re.

                The adverse development at OneBeacon was primarily due to higher than anticipated legal defense costs and higher damages from liability assessments in general liability and multiple peril reserves in OneBeacon’sOneBeacon's run-off operations. Specifically, OneBeacon’sOneBeacon's management had assumed at December 31, 2004 that the IBNR and known case development would be approximately 26% of actual case reserves for the 2001 and prior accident years for multiple peril and general liability. During 2005, case incurred loss and LAE was 72% of the entire future expected development, which was unusually large for these long tail lines of business. As a result, OneBeacon’sOneBeacon's managementincreased IBNR reserves for these lines so that as of year end 2005 the IBNR was approximately 40% relative to the remaining case reserves.

                The majority of the adverse development at White Mountains Re resulted from actions taken in response to a ground-up study of Folksamerica’sFolksamerica's exposure to asbestos claims that was completed in the third quarter of 2005. The study examined losses incurred by all insureds that had reported over $250,000 of asbestos claims to Folksamerica and a significant sample of all other insureds with reported asbestos claims of less than $250,000. Comparing estimates generated by the study to Folksamerica’sFolksamerica's exposed limits by underwriting year led management to record an increase of approximately $50 million in IBNR during the third quarter of 2005. This unfavorable development was partially offset by favorable development in the Sirius International reserve portfolio of approximately $12.0 million, mainly from the three most recent underwriting years.

                Loss and LAE development - 2004

                  White Mountains experienced $115.1 million of unfavorable development on prior accident year loss and LAE reserves during 2004, of which approximately $100.3 million (relating primarily to 2002 and prior accident years) was experienced by OneBeacon and approximately $10.8 million was experienced by White Mountains Re.

                  The net unfavorable development at OneBeacon related primarily to personal auto liability, general liability and multiple peril reserves due in part to emerging trends in claims experienced in OneBeacon’s run-off operations, aswell as national account and program claims administered by third parties. These claim trends principally included higher legal defense costs and higher damages from liability assessments. Prior to 2004, OneBeacon’s management had made assumptions that case reserving standards and settlement practices in the run-off operations would be consistent with the standards and practices that were observed in the ongoing operations. During 2004, multiple peril liability and general liability case incurred loss and LAE for run-off claims was double that for ongoing operations claims. As a result, OneBeacon’s management increased the overall level of reserves for run-off during 2004. In addition, OneBeacon’s management undertook a more in depth review of the standards and practices as applicable to run-off claims and formed a separate run-off claims unit.


                  The majority of the unfavorable development recorded at White Mountains Re resulted from certain discontinued lines at Folksamerica as well as run-off operations acquired as part of the Sirius Acquisition. This unfavorable development was partially offset by favorable development in the Sirius International reserve portfolio, mainly from the three most recent underwriting years, and is indicative of the favorable terms and conditions that have existed in the global reinsurance marketplace during that time.

                  Fair value adjustment

                In connection with purchase accounting for the acquisitions of OneBeacon, Sirius International, and Mutual Service Casualty, Stockbridge Insurance Company, White Mountains was required to adjust loss and LAE reserves and the related reinsurance recoverables to fair value on OneBeacon’s, Sirius’OneBeacon's, Sirius International's and Mutual Service Casualty’sCasualty's acquired balance sheets. The net reduction to loss and LAE reserves is being recognized through an income statement charge ratably with and over the period the claims are settled. Accordingly, White Mountains recognized $21.4 million, $24.5 million $36.9 million and $43.3$36.9 million of such charges, recorded as loss and LAE during 2007, 2006 2005 and 2004.2005. As of December 31, 2007, the outstanding pre-tax unaccreted adjustment was $56.7 million.


                The fair values of OneBeacon’sOneBeacon's loss and LAE reserves and related reinsurance recoverables acquired on June 1, 2001, Sirius’Sirius International's loss and LAE reserves and related reinsurance recoverables acquired on April 16, 2004, and Mutual Service CasualtyStockbridge Insurance Company's loss and LAE reserves and related recoverables acquired on December 22, 2006 were based on the present value of their expected cash flows with consideration for the uncertainty inherent in both the timing of, and the ultimate amount of, future payments for losses and receipts of amounts recoverable from reinsurers. In estimating fair value, management adjusted the nominal loss reserves of OneBeacon (net of the effects of reinsurance obtained from the NICO Cover, as defined below and the GRC Cover, as defined below), Sirius International and Mutual Service CasualtyStockbridge Insurance Company and discounted them to their present value using an applicable risk-free discount rate. The series of future cash flows related to such loss payments and reinsurance recoveries were developed using OneBeacon’s, Sirius’OneBeacon's, Sirius International's and Mutual Service Casualty’sStockbridge Insurance Company's historical loss data. The resulting discount was reduced by the “price”"price" for bearing the uncertainty inherent in OneBeacon’s, Sirius’OneBeacon's, Sirius International's and Mutual Service Casualty’sStockbridge Insurance Company's net loss reserves in order to estimate fair value. This was approximately 11%, 12% and 2% of the present value of the expected underlying cash flows of theloss reserves and reinsurance recoverables of OneBeacon, Sirius International and Mutual Service Casualty,Stockbridge Insurance Company, respectively, which is believed to be reflective of the cost OneBeacon, Sirius International and Mutual Service CasualtyStockbridge Insurance Company would incur if they had attempted to reinsure the full amount of its net loss and LAE reserves with a third party reinsurer.

                Asbestos and environmental loss and loss adjustment expense reserve activity

                White Mountains’Mountains' reserves include provisions made for claims that assert damages from asbestos and environmental (“("A&E”&E") related exposures. Asbestos claims relate primarily to injuries asserted by those who came in contact with asbestos or products containing asbestos. Environmental claims relate primarily to pollution and related clean-up costscost obligations, particularly as mandated by federal and state environmental protection agencies. In addition to the factors described above regarding the reserving process, White Mountains estimates its A&E reserves based upon, among other factors, facts surrounding reported cases and exposures to claims, such as policy limits and deductibles, current law, past and projected claim activity and past settlement values for similar claims, as well as analysis of industry studies and events, such as recent settlements and asbestos-related bankruptcies. The cost of administering A&E claims, which is an important factor in estimating loss reserves, tends to be higher than in the case of non-A&E claims due to the higher legal costs typically associated with A&E claims.

                        During 2005, White Mountains Re completed a detailed, ground-up asbestos exposure study. Comparing estimates generated by the study to Folksamerica exposed limits by underwriting year led to an increase of approximately $50 million in IBNR for asbestos during the third quarter of 2005.

                        During the fourth quarter of 2007, White Mountains Re completed another detailed ground-up asbestos exposure study and reviewed environmental reserves relative to industry benchmarks. This study was an update to the analysis first performed in 2005. The study analyzed potential exposure to loss of all insureds that had reported at least $250,000 in losses to Folksamerica through reinsurance contracts as of June 30, 2007. This analysis entailed examining total expected asbestos losses and LAE from a variety of information sources, including asbestos studies, data reported to Folksamerica as well as a review of historical public filings. The resulting exposure from this analysis was compared against Folksamerica's reinsurance contract layers to derive an estimated expected loss. In addition, White Mountains Re analyzed a significant sample of all other insureds that had reported losses of less than $250,000 and extrapolated the sample findings to the entire population.

                        In addition, Folksamerica has received notices of claims from a number of other insureds with reported loss amounts that have not exceeded the attachment points of reinsurance contracts written by Folksamerica. Based on the claims activity related to those insureds since the 2005 study, White Mountains Re estimated the future impact of these insureds to its exposure as well as the impact of future claims from insureds that have not reported any claims to date.

                        In the study, White Mountains Re sought to include adequate provision for future reported claims, premises/operations coverage (in addition to products liability coverage), and future adverse court decisions. To estimate this provision, White Mountains Re measured the changes in individual insured estimates from the 2005 study to the 2007 study to estimate future reported losses. The combined effect of all these estimates resulted in an increase of $51.6 million in IBNR for asbestos losses and LAE.

                        White Mountains Re reviewed Folksamerica's exposure to environmental losses using industry benchmarks known as "survival ratios". The survival ratio, computed as a company's reserves divided by the average of its last three years' net loss payments, indicates approximately how many more years of payments the current reserves can support, assuming future yearly payments are consistent with the average three-year historical levels. This analysis led to an increase of $11 million in IBNR for environmental losses in the fourth quarter of 2007. White Mountains Re's A&E three year survival ratio was approximately 13 years and 8 years at December 31, 2007 and 2006, respectively.


                Immediately prior to White Mountains’Mountains' acquisition of OneBeacon, Aviva caused OneBeacon purchasedto purchase a reinsurance contract with National Indemnity Company (“NICO”("NICO") under which OneBeacon is entitled to recover from NICO up to $2.5 billion in the future for asbestos claims arising from business written by OneBeacon in 1992 and prior, environmental claims arising from business written by OneBeacon in 1987 and prior, and certain other exposures (the “NICO Cover”"NICO Cover"). Under the terms of the NICO Cover, NICO receives the economic benefit of reinsurance recoverables from certain of OneBeacon’sOneBeacon's third party reinsurers in existence at the time the NICO Cover was executed (“("Third Party Recoverables”Recoverables"). As a result, the Third Party Recoverables serve to protect the $2.5 billion limit of NICO coverage for the benefit of OneBeacon. Any amounts uncollectible from third party reinsurers due to dispute or the reinsurers’reinsurers' financial inability to pay are covered by NICO under its agreement with OneBeacon. Third Party Recoverables are typically for the amount of loss in excess of a stated level each year. Of claim payments in the past 11 years, approximately 50%49% of asbestos and environmental losses have been recovered under the historical third party reinsurance.


                In June 2005, OneBeacon completed an internal study of its A&E exposures. This study considered, among other items, (1) facts, such as policy limits, deductibles and available third party reinsurance, related to reported claims; (2) current law; (3) past and projected claim activity and past settlement values for similar claims; (4) industry studies and events, such as recent settlements and asbestos-related bankruptcies; and (5) collectibility of third-party reinsurance. Based on the study, OneBeacon increased its best estimate of its incurred losses ceded to NICO, net of underlying reinsurance, by $353 million ($841 million gross) to $2.1 billion, which is within the $2.5 billion coverage provided by the NICO Cover. OneBeacon estimates that the range of reasonable outcomes around its best estimate is $1.7 billion to $2.4 billion, versus a range of $1.5 billion to $2.4 billion from its previous study that was conducted in 2003. Due to the NICO Cover, there was no impact to income or equity from the change in estimate.

                The increase in the estimate of incurred A&E losses was principally driven by raised projections for claims related to asbestos (particularly from assumed reinsurance business), and for mass torts other than asbestos and environmental, particularly lead and sexual molestation. This increase was partially offset by reduced projections of ultimate hazardous waste losses.

                As noted above, OneBeacon estimates that on an incurred basis it has used approximately $2.1 billion of the coverage provided by NICO at December 31, 2006.2007. Since entering into the NICO Cover, $29.2$39.8 million of the $2.1 billion of utilized coverage relates to uncollected amounts from third party reinsurers through December 31, 2006.2007. Net losses paid totaled approximately $847$986.0 million as of December 31, 2006,2007, with $146$139.0 million paid in 2006.2007. Asbestos payments during 20062007 reflect payments resulting from intensified efforts by claimants to resolve asbestos claims prior to enactment of potential Federal asbestos legislation. To the extent that OneBeacon’sOneBeacon's estimate of ultimate A&E losses as well as the estimate and collectibility of Third Party Recoverables differs from actual experience, the remaining protection under the NICO Cover may be more or less than the approximate $404$404.0 million that OneBeacon estimates remained at December 31, 2006.2007.

                White Mountains’Mountains' reserves for A&E losses at December 31, 20062007 represent management’smanagement's best estimate of its ultimate liability based on information currently available. However, as case law expands, and medical and clean-up costs increase and industry settlement practices change, White Mountains may be subject to asbestos and environmental losses beyond currently estimated amounts. White Mountains cannot reasonably estimate at the present time loss reserve additions arising from any such future unfavorable developments and cannot be sure that allocated loss reserves, plus the remaining capacity under the NICO Cover and other reinsurance contracts, will be sufficient to cover additional liability arising from any such unfavorable developments.

                The following tables summarize reported asbestos and environmental loss and LAE reserve activities (gross and net of reinsurance) for OneBeacon, White Mountains Re and White Mountains’Mountains' other operations, consisting of American Centennial and British Insurance Company, for the years ended December 31, 2007, 2006 and 2005, and 2004, respectively.respectively:


                OneBeacon



                 Year Ended December 31,
                 

                Net A&E Loss Reserve Activity

                 

                Year Ended December 31,

                 

                Net A&E Loss Reserve Activity

                 2007
                 2006
                 2005
                 

                Millions

                 

                2006

                 

                2005

                 

                2004

                 

                Millions

                 Gross
                 Pre-NICO Net(1)
                 Net
                 Gross
                 Pre-NICO Net(1)
                 Net
                 Gross
                 Pre-NICO Net(1)
                 Net
                 
                Asbestos:Asbestos:                            
                Beginning balanceBeginning balance $1,227.6 $766.6 $6.8 $1,323.4 $845.9 $7.4 $868.9 $599.2 $8.5 

                 

                Pre-NICO

                 

                Pre-NICO

                 

                Pre-NICO

                 

                Incurred losses and LAE  14.7      (4.0) (1.6)   544.8  307.5   

                 

                Gross

                 

                Net (1)

                 

                Net

                 

                Gross

                 

                Net (1)

                 

                Net

                 

                Gross

                 

                Net (1)

                 

                Net

                 

                Paid losses and LAE  (86.4) (66.9) .4  (91.8) (77.7) (.6) (90.3) (60.8) (1.1)

                Asbestos:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Beginning balance

                 

                $

                1,323.4

                 

                $

                845.9

                 

                $

                7.4

                 

                868.9

                 

                $

                599.2

                 

                $

                8.5

                 

                $

                969.5

                 

                $

                641.6

                 

                $

                4.2

                 

                Incurred losses and LAE

                 

                (4.0

                )

                (1.6

                )

                 

                544.8

                 

                307.5

                 

                 

                6.7

                 

                1.5

                 

                5.9

                 

                Paid losses and LAE

                 

                (91.8

                )

                (77.7

                )

                (.6

                )

                (90.3

                )

                (60.8

                )

                (1.1

                )

                (107.3

                )

                (43.9

                )

                (1.6

                )

                 
                 
                 
                 
                 
                 
                 
                 
                 
                 

                Ending balance

                 

                1,227.6

                 

                766.6

                 

                6.8

                 

                1,323.4

                 

                845.9

                 

                7.4

                 

                868.9

                 

                599.2

                 

                8.5

                 

                Ending balance  1,155.9  699.7  7.2  1,227.6  766.6  6.8  1,323.4  845.9  7.4 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 
                 
                 
                 
                 
                 
                 
                 
                 

                Environmental:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Environmental:                            

                Beginning balance

                 

                729.7

                 

                421.5

                 

                6.5

                 

                513.0

                 

                408.4

                 

                10.2

                 

                559.8

                 

                454.8

                 

                8.6

                 

                Beginning balance  678.0  394.6  10.6  729.7  421.5  6.5  513.0  408.4  10.2 

                Incurred losses and LAE

                 

                (8.6

                )

                (7.8

                )

                 

                265.7

                 

                42.7

                 

                2.0

                 

                9.6

                 

                4.7

                 

                6.7

                 

                Paid losses and LAE

                 

                (43.1

                )

                (19.1

                )

                4.1

                 

                (49.0

                )

                (29.6

                )

                (5.7

                )

                (56.4

                )

                (51.1

                )

                (5.1

                )

                Incurred losses and LAE  (18.3)     (8.6) (7.8)   265.7  42.7  2.0 
                Paid losses and LAE  (82.6) (52.1) (4.6) (43.1) (19.1) 4.1  (49.0) (29.6) (5.7)
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 

                Ending balance

                 

                678.0

                 

                394.6

                 

                10.6

                 

                729.7

                 

                421.5

                 

                6.5

                 

                513.0

                 

                408.4

                 

                10.2

                 

                Ending balance  577.1  342.5  6.0  678.0  394.6  10.6  729.7  421.5  6.5 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 
                 
                 
                 
                 
                 
                 
                 
                 

                Total asbestos and environmental:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Total asbestos and environmental:                            

                Beginning balance

                 

                2,053.1

                 

                1,267.4

                 

                13.9

                 

                1,381.9

                 

                1,007.6

                 

                18.7

                 

                1,529.3

                 

                1,096.4

                 

                12.8

                 

                Beginning balance  1,905.6  1,161.2  17.4  2,053.1  1,267.4  13.9  1,381.9  1,007.6  18.7 

                Incurred losses and LAE

                 

                (12.6

                )

                (9.4

                )

                 

                810.5

                 

                350.2

                 

                2.0

                 

                16.3

                 

                6.2

                 

                12.6

                 

                Paid losses and LAE

                 

                (134.9

                )

                (96.8

                )

                3.5

                 

                (139.3

                )

                (90.4

                )

                (6.8

                )

                (163.7

                )

                (95.0

                )

                (6.7

                )

                Incurred losses and LAE  (3.6)     (12.6) (9.4)   810.5  350.2  2.0 
                Paid losses and LAE  (169.0) (119.0) (4.2) (134.9) (96.8) 3.5  (139.3) (90.4) (6.8)
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 

                Ending balance

                 

                $

                1,905.6

                 

                $

                1,161.2

                 

                $

                17.4

                 

                $

                2,053.1

                 

                $

                1,267.4

                 

                $

                13.9

                 

                $

                1,381.9

                 

                $

                1,007.6

                 

                $

                18.7

                 

                Ending balance $1,733.0 $1,042.2 $13.2 $1,905.6 $1,161.2 $17.4 $2,053.1 $1,267.4 $13.9 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                 

                (1)
                Represents A&E reserve activity, net of third party reinsurance, but prior to the NICO Cover.

                White Mountains Re

                Net A&E Loss Reserve Activity

                 

                Year Ended December 31,

                 

                Millions

                 

                2006

                 

                2005

                 

                2004

                 

                 

                 

                Gross

                 

                Net

                 

                Gross

                 

                Net

                 

                Gross

                 

                Net

                 

                Asbestos:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Beginning balance

                 

                $

                147.7

                 

                $

                109.1

                 

                $

                68.1

                 

                $

                59.3

                 

                $

                69.7

                 

                $

                64.1

                 

                Incoming (Outgoing) asbestos reserves due to Sirius America acquisition/ divestiture

                 

                (3.3

                )

                (0.9

                )

                 

                 

                9.7

                 

                6.9

                 

                Incoming asbestos reserves due to MSC acquisition

                 

                1.3

                 

                1.0

                 

                 

                 

                 

                 

                Incurred losses and LAE

                 

                (0.3

                )

                (0.1

                )

                91.3

                 

                62.0

                 

                8.0

                 

                2.6

                 

                Paid losses and LAE

                 

                (9.8

                )

                (7.9

                )

                (11.7

                )

                (12.2

                )

                (19.3

                )

                (14.3

                )

                Ending balance

                 

                135.6

                 

                101.2

                 

                147.7

                 

                109.1

                 

                68.1

                 

                59.3

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Environmental:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Beginning balance

                 

                13.5

                 

                8.3

                 

                21.9

                 

                15.7

                 

                17.4

                 

                15.1

                 

                Incoming (Outgoing) environmental reserves due to Sirius America acquisition/ divestiture

                 

                (1.5

                )

                (0.9

                )

                 

                 

                3.2

                 

                1.9

                 

                Incoming environmental reserves due to MSC acquisition

                 

                5.2

                 

                4.4

                 

                 

                 

                 

                 

                Incurred losses and LAE

                 

                (0.8

                )

                (0.2

                )

                (3.6

                )

                (3.4

                )

                2.8

                 

                .1

                 

                Paid losses and LAE

                 

                (0.6

                )

                (0.5

                )

                (4.8

                )

                (4.0

                )

                (1.5

                )

                (1.4

                )

                Ending balance

                 

                15.8

                 

                11.1

                 

                13.5

                 

                8.3

                 

                21.9

                 

                15.7

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Total asbestos and environmental:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Beginning balance

                 

                161.2

                 

                117.4

                 

                90.0

                 

                75.0

                 

                87.1

                 

                79.2

                 

                Incoming (Outgoing) A&E reserves due to Sirius America acquisition/ divestiture

                 

                (4.8

                )

                (1.8

                )

                 

                 

                12.9

                 

                8.8

                 

                Incoming A&E reserves due to MSC acquisition

                 

                6.5

                 

                5.4

                 

                 

                 

                 

                 

                Incurred losses and LAE

                 

                (1.1

                )

                (0.3

                )

                87.7

                 

                58.6

                 

                10.8

                 

                2.7

                 

                Paid losses and LAE

                 

                (10.4

                )

                (8.4

                )

                (16.5

                )

                (16.2

                )

                (20.8

                )

                (15.7

                )

                Ending balance

                 

                $

                151.4

                 

                $

                112.3

                 

                $

                161.2

                 

                $

                117.4

                 

                $

                90.0

                 

                $

                75.0

                 

                 
                 Year Ended December 31,
                 
                Net A&E Loss Reserve Activity

                 2007
                 2006
                 2005
                 
                Millions

                 
                 Gross
                 Net
                 Gross
                 Net
                 Gross
                 Net
                 
                Asbestos:                   
                Beginning balance $135.6 $101.2 $147.7 $109.1 $68.1 $59.3 
                 Incoming (Outgoing) asbestos reserves due to Sirius America acquisition/divestiture      (3.3) (.9)    
                 Incoming asbestos reserves due to Mutual Service Casualty acquisition      1.3  1.0     
                 Incurred losses and LAE  58.6  51.6  (.3) (.1) 91.3  62.0 
                 Paid losses and LAE  (12.3) (10.7) (9.8) (7.9) (11.7) (12.2)
                  
                 
                 
                 
                 
                 
                 
                Ending balance  181.9  142.1  135.6  101.2  147.7  109.1 
                  
                 
                 
                 
                 
                 
                 
                Environmental:                   
                Beginning balance  15.8  11.1  13.5  8.3  21.9  15.7 
                 Incoming (Outgoing) environmental reserves due to Sirius America acquisition/divestiture      (1.5) (.9)    
                 Incoming environmental reserves due to Mutual Service Casualty acquisition      5.2  4.4     
                 Incurred losses and LAE  12.9  11.6  (.8) (.2) (3.6) (3.4)
                 Paid losses and LAE  (2.0) (1.7) (.6) (.5) (4.8) (4.0)
                  
                 
                 
                 
                 
                 
                 
                Ending balance  26.7  21.0  15.8  11.1  13.5  8.3 
                  
                 
                 
                 
                 
                 
                 
                Total asbestos and environmental:                   
                Beginning balance  151.4  112.3  161.2  117.4  90.0  75.0 
                 Incoming (Outgoing) A&E reserves due to Sirius America acquisition/divestiture      (4.8) (1.8)    
                 Incoming A&E reserves due to Mutual Service Casualty acquisition      6.5  5.4     
                 Incurred losses and LAE  71.5  63.2  (1.1) (.3) 87.7  58.6 
                 Paid losses and LAE  (14.3) (12.4) (10.4) (8.4) (16.5) (16.2)
                  
                 
                 
                 
                 
                 
                 
                Ending balance $208.6 $163.1 $151.4 $112.3 $161.2 $117.4 
                  
                 
                 
                 
                 
                 
                 

                Other operations

                Net A&E Loss Reserve Activity (1)

                 

                Year Ended December 31,

                 



                 Year Ended December 31,
                 
                Net A&E Loss Reserve Activity(1)

                Net A&E Loss Reserve Activity(1)

                 2007
                 2006
                 2005
                 

                Millions

                 

                2006

                 

                2005

                 

                2004

                 

                Millions

                 

                 

                Gross

                 

                Net

                 

                Gross

                 

                Net

                 

                Gross

                 

                Net

                 

                Millions

                Millions

                Gross
                 Net
                 Gross
                 Net
                 Gross
                 Net
                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                             

                Beginning balance

                 

                $

                45.8

                 

                $

                44.7

                 

                $

                37.5

                 

                $

                36.5

                 

                $

                27.0

                 

                $

                25.7

                 

                Beginning balance $48.4 $47.1 $45.8 $44.7 $37.5 $36.5 

                Incurred losses and LAE

                 

                5.6

                 

                3.8

                 

                11.9

                 

                9.7

                 

                15.3

                 

                7.6

                 

                Paid losses and LAE

                 

                (3.0

                )

                (1.4

                )

                (3.6

                )

                (1.5

                )

                (4.8

                )

                3.2

                 

                Incurred losses and LAE (21.7) (20.6) 5.6 3.8 11.9 9.7 
                Paid losses and LAE (6.3) (6.3) (3.0) (1.4) (3.6) (1.5)
                 
                 
                 
                 
                 
                 
                 

                Ending balance

                 

                48.4

                 

                47.1

                 

                45.8

                 

                44.7

                 

                37.5

                 

                36.5

                 

                Ending balance 20.4 20.2 48.4 47.1 45.8 44.7 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 
                 
                 
                 
                 
                 

                Environmental:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Environmental:             

                Beginning balance

                 

                10.1

                 

                9.7

                 

                6.9

                 

                6.8

                 

                5.7

                 

                5.5

                 

                Beginning balance 9.1 9.1 10.1 9.7 6.9 6.8 

                Incurred losses and LAE

                 

                (0.6

                )

                (0.4

                )

                4.1

                 

                3.3

                 

                2.0

                 

                .9

                 

                Paid losses and LAE

                 

                (0.4

                )

                (0.2

                )

                (.9

                )

                (.4

                )

                (.8

                )

                .4

                 

                Incurred losses and LAE (1.9) (2.0) (0.6) (0.4) 4.1 3.3 
                Paid losses and LAE (1.1) (1.1) (0.4) (0.2) (.9) (.4)
                 
                 
                 
                 
                 
                 
                 

                Ending balance

                 

                9.1

                 

                9.1

                 

                10.1

                 

                9.7

                 

                6.9

                 

                6.8

                 

                Ending balance 6.1 6.0 9.1 9.1 10.1 9.7 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 
                 
                 
                 
                 
                 

                Total asbestos and environmental:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Total asbestos and environmental:             

                Beginning balance

                 

                55.9

                 

                54.4

                 

                44.4

                 

                43.3

                 

                32.7

                 

                31.2

                 

                Beginning balance 57.5 56.2 55.9 54.4 44.4 43.3 

                Incurred losses and LAE

                 

                5.0

                 

                3.4

                 

                16.0

                 

                13.0

                 

                17.3

                 

                8.5

                 

                Paid losses and LAE

                 

                (3.4

                )

                (1.6

                )

                (4.5

                )

                (1.9

                )

                (5.6

                )

                3.6

                 

                Incurred losses and LAE (23.6) (22.6) 5.0 3.4 16.0 13.0 
                Paid losses and LAE (7.4) (7.4) (3.4) (1.6) (4.5) (1.9)
                 
                 
                 
                 
                 
                 
                 

                Ending balance

                 

                $

                57.5

                 

                $

                56.2

                 

                $

                55.9

                 

                $

                54.4

                 

                $

                44.4

                 

                $

                43.3

                 

                Ending balance $26.5 $26.2 $57.5 $56.2 $55.9 $54.4 
                 
                 
                 
                 
                 
                 
                 

                (1)
                The asbestos and environmental reserve activity for White Mountains’Mountains' other operations is comprised of American Centennial and British Insurance Company, two insurance subsidiaries that have been in run-off since 1985.The majority of the A&E reserves from other operations are recorded at American Centennial. At December 31, 2006,2007, American Centennial had 48146 insureds with open asbestos and environmental claims of which 3079 related to asbestos claims and 1867 related to environmental claims.

                F-27





                NOTE 4. Third Party Reinsurance

                In the normal course of business, White Mountains’Mountains' insurance and reinsurance subsidiaries seek to limit losses that may arise from catastrophes or other events by reinsuring with third party reinsurers. White Mountains remains liable for risks reinsured even if the reinsurer does not honor its obligations under reinsurance contracts. The effects of reinsurance on White Mountains’Mountains' insurance and reinsurance subsidiaries’subsidiaries' written and earned premiums and on losses and LAE were as follows:

                Year ended December 31, 2006
                Millions

                 

                OneBeacon

                 

                White
                Mountains Re

                 

                Esurance

                 

                Other
                Insurance
                Operations

                 

                Total

                 

                Gross written premiums:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Direct

                 

                $

                2,028.0

                 

                $

                236.2

                 

                $

                563.5

                 

                $

                 

                $

                2,827.7

                 

                Assumed

                 

                60.4

                 

                1,388.4

                 

                36.0

                 

                 

                1,484.8

                 

                Ceded

                 

                (130.8

                )

                (334.7

                )

                (3.6

                )

                 

                (469.1

                )

                Net written premiums

                 

                $

                1,957.6

                 

                $

                1,289.9

                 

                $

                595.9

                 

                $

                 

                $

                3,843.4

                 

                Gross earned premiums:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Direct

                 

                $

                2,007.6

                 

                $

                240.2

                 

                $

                495.3

                 

                $

                 

                $

                2,743.1

                 

                Assumed

                 

                65.4

                 

                1,448.8

                 

                35.7

                 

                 

                1,549.9

                 

                Ceded

                 

                (129.0

                )

                (447.8

                )

                (3.5

                )

                 

                (580.3

                )

                Net earned premiums

                 

                $

                1,944.0

                 

                $

                1,241.2

                 

                $

                527.5

                 

                $

                 

                $

                3,712.7

                 

                Losses and LAE:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Direct

                 

                $

                1,245.1

                 

                $

                132.0

                 

                $

                359.5

                 

                $

                5.6

                 

                $

                1,742.2

                 

                Assumed

                 

                54.1

                 

                1,030.7

                 

                25.0

                 

                (0.1

                )

                1,109.7

                 

                Ceded

                 

                (118.9

                )

                (278.1

                )

                (0.7

                )

                (1.6

                )

                (399.3

                )

                Net losses and LAE

                 

                $

                1,180.3

                 

                $

                884.6

                 

                $

                383.8

                 

                $

                3.9

                 

                $

                2,452.6

                 

                Year ended December 31, 2005
                Millions

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                OneBeacon(1)

                 

                White
                Mountains Re

                 

                Esurance

                 

                Other
                Insurance
                Operations

                 

                Total

                 

                Gross written premiums:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Direct

                 

                $

                2,177.0

                 

                $

                338.0

                 

                $

                320.9

                 

                $

                 

                $

                2,835.9

                 

                Assumed

                 

                89.6

                 

                1,643.3

                 

                31.0

                 

                1.9

                 

                1,765.8

                 

                Ceded

                 

                (145.5

                )

                (677.2

                )

                (2.8

                )

                (.1

                )

                (825.6

                )

                Net written premiums

                 

                $

                2,121.1

                 

                $

                1,304.1

                 

                $

                349.1

                 

                $

                1.8

                 

                $

                3,776.1

                 

                Gross earned premiums:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Direct

                 

                $

                2,175.8

                 

                $

                347.6

                 

                $

                280.1

                 

                $

                 

                $

                2,803.5

                 

                Assumed

                 

                102.7

                 

                1,784.6

                 

                29.1

                 

                1.9

                 

                1,918.3

                 

                Ceded

                 

                (160.1

                )

                (760.6

                )

                (2.4

                )

                (.1

                )

                (923.2

                )

                Net earned premiums

                 

                $

                2,118.4

                 

                $

                1,371.6

                 

                $

                306.8

                 

                $

                1.8

                 

                $

                3,798.6

                 

                Losses and LAE:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Direct

                 

                $

                2,220.5

                 

                $

                224.2

                 

                $

                186.2

                 

                $

                13.7

                 

                $

                2,644.6

                 

                Assumed

                 

                187.0

                 

                2,113.9

                 

                20.1

                 

                1.9

                 

                2,322.9

                 

                Ceded

                 

                (1,006.0

                )

                (1,100.2

                )

                (.1

                )

                (3.0

                )

                (2,109.3

                )

                Net losses and LAE

                 

                $

                1,401.5

                 

                $

                1,237.9

                 

                $

                206.2

                 

                $

                12.6

                 

                $

                2,858.2

                 

                 
                 Year ended December 31, 2007
                 
                Millions

                 OneBeacon
                 White Mountains Re
                 Esurance
                 Other Insurance Operations
                 Total
                 
                Gross written premiums:                
                 Direct $2,041.3 $107.4 $773.5 $ $2,922.2 
                 Assumed  50.6  1,187.9  29.0    1,267.5 
                 Ceded  (227.5) (199.6) (4.0)   (431.1)
                  
                 
                 
                 
                 
                 
                Net written premiums $1,864.4 $1,095.7 $798.5 $ $3,758.6 
                  
                 
                 
                 
                 
                 
                Gross earned premiums:                
                 Direct $2,017.4 $108.2 $736.8 $ $2,862.4 
                 Assumed  54.6  1,235.2  30.5    1,320.3 
                 Ceded  (198.4) (196.6) (4.0)   (399.0)
                  
                 
                 
                 
                 
                 
                Net earned premiums $1,873.6 $1,146.8 $763.3 $ $3,783.7 
                  
                 
                 
                 
                 
                 
                Losses and LAE:                
                 Direct $1,172.0 $87.8 $598.2 $2.0 $1,860.0 
                 Assumed  (11.1) 787.5  26.0  (8.6) 793.8 
                 Ceded  (71.1) (174.3) (1.8) (.2) (247.4)
                  
                 
                 
                 
                 
                 
                Net losses and LAE $1,089.8 $701.0 $622.4 $(6.8)$2,406.4 
                  
                 
                 
                 
                 
                 
                 
                 Year ended December 31, 2006
                 
                Millions

                 OneBeacon
                 White Mountains Re
                 Esurance
                 Other Insurance Operations
                 Total
                 
                Gross written premiums:                
                 Direct $2,028.0 $236.2 $563.5 $ $2,827.7 
                 Assumed  60.4  1,388.4  36.0    1,484.8 
                 Ceded  (130.8) (334.6) (3.6)   (469.0)
                  
                 
                 
                 
                 
                 
                Net written premiums $1,957.6 $1,290.0 $595.9 $ $3,843.5 
                  
                 
                 
                 
                 
                 
                Gross earned premiums:                
                 Direct $2,007.6 $240.2 $495.3 $ $2,743.1 
                 Assumed  65.4  1,448.8  35.7    1,549.9 
                 Ceded  (129.0) (447.8) (3.5)   (580.3)
                  
                 
                 
                 
                 
                 
                Net earned premiums $1,944.0 $1,241.2 $527.5 $ $3,712.7 
                  
                 
                 
                 
                 
                 
                Losses and LAE:                
                 Direct $1,245.1 $132.0 $359.5 $5.6 $1,742.2 
                 Assumed  54.1  1,030.7  25.1  (.1) 1,109.8 
                 Ceded  (118.9) (278.1) (.7) (1.6) (399.3)
                  
                 
                 
                 
                 
                 
                Net losses and LAE $1,180.3 $884.6 $383.9 $3.9 $2,452.7 
                  
                 
                 
                 
                 
                 

                 

                 

                 

                 

                 

                 

                 

                 

                Other

                 

                 

                 

                Year ended December 31, 2004

                 

                 

                 

                White

                 

                 

                 

                Insurance

                 

                 

                 

                Millions

                 

                OneBeacon(1)

                 

                Mountains Re

                 

                Esurance

                 

                Operations

                 

                Total

                 

                Gross written premiums:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Direct

                 

                $

                2,367.9

                 

                $

                367.4

                 

                $

                176.7

                 

                $

                 

                $

                2,912.0

                 

                Assumed

                 

                289.6

                 

                1,565.9

                 

                24.6

                 

                 

                1,880.1

                 

                Ceded

                 

                (198.4

                )

                (687.0

                )

                (1.9

                )

                 

                (887.3

                )

                Net written premiums

                 

                $

                2,459.1

                 

                $

                1,246.3

                 

                $

                199.4

                 

                $

                 

                $

                3,904.8

                 

                Gross earned premiums:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Direct

                 

                $

                2,253.9

                 

                $

                310.4

                 

                $

                153.6

                 

                $

                 

                $

                2,717.9

                 

                Assumed

                 

                331.1

                 

                1,625.4

                 

                24.4

                 

                 

                1,980.9

                 

                Ceded

                 

                (206.5

                )

                (670.3

                )

                (1.5

                )

                 

                (878.3

                )

                Net earned premiums

                 

                $

                2,378.5

                 

                $

                1,265.5

                 

                $

                176.5

                 

                $

                 

                $

                3,820.5

                 

                Losses and LAE:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Direct

                 

                $

                1,439.3

                 

                $

                196.3

                 

                $

                108.6

                 

                $

                2.4

                 

                $

                1,746.6

                 

                Assumed

                 

                221.3

                 

                1,159.7

                 

                14.0

                 

                11.0

                 

                1,406.0

                 

                Ceded

                 

                (115.4

                )

                (437.1

                )

                (.2

                )

                (8.8

                )

                (561.5

                )

                Net losses and LAE

                 

                $

                1,545.2

                 

                $

                918.9

                 

                $

                122.4

                 

                $

                4.6

                 

                $

                2,591.1

                 

                 
                 Year ended December 31, 2005
                 
                Millions

                 OneBeacon(1)
                 White Mountains Re
                 Esurance
                 Other Insurance Operations
                 Total
                 
                Gross written premiums:                
                 Direct $2,177.0 $338.0 $320.9 $ $2,835.9 
                 Assumed  89.6  1,643.3  31.0  1.9  1,765.8 
                 Ceded  (145.5) (677.2) (2.8) (.1) (825.6)
                  
                 
                 
                 
                 
                 
                Net written premiums $2,121.1 $1,304.1 $349.1 $1.8 $3,776.1 
                  
                 
                 
                 
                 
                 
                Gross earned premiums:                
                 Direct $2,175.8 $347.6 $280.1 $ $2,803.5 
                 Assumed  102.7  1,784.6  29.1  1.9  1,918.3 
                 Ceded  (160.1) (760.6) (2.4) (.1) (923.2)
                  
                 
                 
                 
                 
                 
                Net earned premiums $2,118.4 $1,371.6 $306.8 $1.8 $3,798.6 
                  
                 
                 
                 
                 
                 
                Losses and LAE:                
                 Direct $2,220.5 $224.2 $186.2 $13.7 $2,644.6 
                 Assumed  187.0  2,113.9  20.1  1.9  2,322.9 
                 Ceded  (1,006.0) (1,100.2) (.1) (3.0) (2,109.3)
                  
                 
                 
                 
                 
                 
                Net losses and LAE $1,401.5 $1,237.9 $206.2 $12.6 $2,858.2 
                  
                 
                 
                 
                 
                 

                (1)
                On November 1, 2001, OneBeacon transferred its regional agency business, agents and operations in 42 states and the District of Columbia to Liberty Mutual pursuant to a renewal rights agreement (the “Liberty Agreement”"Liberty Agreement"). Assumed amounts principally relate to business assumed under the Liberty Agreement.

                OneBeacon

                OneBeacon

                In the ordinary course of its business, OneBeacon purchases reinsurance from high-quality, highly rated, third party reinsurers in order to minimize loss from large risks or catastrophic events.

                The timing and size of catastrophe losses are unpredictable and the level of losses experienced in any year could be material to OneBeacon’sOneBeacon's operating results and financial position. Examples of catastrophes include losses caused by hurricanes, earthquakes, wildfires hurricanes and other types of storms and terrorist acts. The extent of losses causedby catastrophes is both a function of the amount and type of insured exposure in an area affected by the event and the severity of the event. OneBeacon uses models (primarily AIR V.8) to estimate the losses its exposures would generate under various scenarios as well as the probability of those losses occurring. OneBeacon uses this model output in conjunction with other data to manage its exposure to catastrophe losses through individual risk selection and by limiting its concentration of insurance written in catastrophe-prone areas, such as coastal regions. In addition, OneBeacon imposes wind deductibles on existing coastal windstorm exposures. OneBeacon believes that its largest single event natural catastrophe exposures are Northeastern United States windstorms and California earthquakes.

                OneBeacon seeks to further reduce its potential loss from catastrophe exposures through the purchase of catastrophe reinsurance. Effective July 1, 2006,2007, OneBeacon renewed its property catastrophe reinsurance program through June 30, 2007.2008. The program provides coverage for all of OneBeacon's property business including automobile physical damage, as well as terrorism coverage for non-Terrorism Act (as defined below) events (excluding nuclear, biological, chemical and radiological). Under that cover,the program, the first $200$150 million of losses resulting from anya single catastrophe are retained by OneBeacon and $650 million of the next $700 million of losses resulting from a single event in excess of $200 million and up tothe catastrophe are reinsured. Any loss above $850 million are reinsured for 100% of the loss. OneBeacon anticipates this $850 million limit is sufficient to cover Northeast windstorm losses with a 0.4%-0.5% probability of occurrence (1-in-250-year event to 1-in-200-year event).would be retained by OneBeacon. In the event of a catastrophe, OneBeacon’sOneBeacon's property catastrophe reinsurance program is automatically reinstated for the remainder of the original contract term forby paying a reinstatement premium that is based on the percentage of coverage reinstated and the original property catastrophe coverage premium.

                Since the terrorist attacks of September 11, 2001 (the “Attacks”"Attacks"), OneBeacon has sought to mitigate the risk associated with any future terrorist attacks by limiting the aggregate insured value of policies in geographic areas withexposure to losses from terrorist attacks. This is accomplished by either limiting the total insured values exposed, or, where applicable, through the use of terrorism exclusions.


                On        In December 22, 2005,of 2007, the United States government extended the Terrorism Risk Insurance Act which was set to expire onof 2002 (the "Terrorism Act") until December 31, 2005, for two more years.2014. The Terrorism Act was originally enacted on November 26,in 2002 establishesand established a Federal “backstop”"backstop" for commercial property and casualty losses, including workers compensation, resulting from acts of terrorism by or on behalf of any foreign person or foreign interest. As extended, the law now covers domestic acts of terrorism. The law limits the industry’sindustry's aggregate liability by requiring the Federal government to share 85% of certified losses in 2007 once a company meets a specific retention or


                deductible as determined by its prior year’syear's direct written premiums and limits the aggregate liability to be paid by the government and industry without further action by Congress at $100.0 billion. In exchange for this “back-stop,”"backstop", primary insurers are required to make coverage available to commercial insureds for losses from acts of non-domestic terrorism as specified in the Terrorism Act. The following types of coverage are excluded from the program: commercial automobile, burglary and theft, surety, farmowners multi-peril and all professional liability coverage except directors and officers coverage.

                        OneBeacon estimates its individual retention level for commercial policies subject to the Terrorism Act to be approximately $162$170 million in 2007.2008. The aggregate industry retention level is $27.5 billion in 2007.2008. The Federal government will pay 85% of covered terrorism losses that exceed OneBeacon’sOneBeacon's or the industry’sindustry's retention levels in 20072008 up to a total of $100 billion.

                OneBeacon’s current        OneBeacon's propertyand casualty catastrophe reinsurance programs provide coverage for “non-certified”program does not cover personal or commercial property losses resulting from nuclear, biological or chemical terrorist attacks. The program covers personal property losses resulting from "certified" events as defined under the Terrorism Act, such as foreign terrorism, provided such losses arewere not the result of acaused by nuclear biological or chemical attack.means. The program also covers personal and commercial property losses resulting from "non-certified" events as defined under the Terrorism Act, such as domestic terrorist attacks, provided such losses were not caused by nuclear, biological or chemical means.

                OneBeacon also purchases individualindividual property reinsurance coverage for certain risks to reduce large loss volatility. The property-per-risk reinsurance program reinsures losses in excess of $5 million up to $75$100 million. Individual risk facultative reinsurance may be purchased above $75$100 million where it deems it appropriate. The property-per-risk treaty also provides one limit of reinsurance protection for losses in excess of $10 million up to $75$100 million on an individual risk basis for terrorism losses. However, nuclear, biological and chemical events are not covered.

                OneBeacon also maintains a casualty reinsurance program that provides protection for individual risk or catastrophe losses involving workers compensation, general liability, automobile liability or umbrella liability in excess of $6 million up to $81 million. This program provides coverage for either “certified”"certified" or “non-certified”"non-certified" terrorism losses but does not provide coverage for losses resulting from nuclear, biological or chemical attacks.

                In 2001, OneBeacon purchased reinsurance contracts with two reinsurance companies rated “AAA” (“"AAA" ("Extremely Strong”Strong", the highest of twenty-one ratings) by Standard & Poor’sPoor's and “A+"A++” (“Superior”" ("Superior", the highest of fifteen ratings) by A.M. Best. One contract is a reinsurance cover with NICO whichwhich entitles OneBeacon to recover up to $2.5 billion in ultimate loss and LAE incurred related primarily to A&E claims arising from business written by OneBeacon’sOneBeacon's predecessor prior to 1992 for asbestos claims and 1987 for environmental claims. As of December 31, 2006,2007, OneBeacon has ceded estimated incurred losses of approximately $2.1 billion to the NICO Cover. Through December 31, 2007 $986.4 million of these incurred losses have been paid by NICO. Since entering into the NICO Cover, $39.8 million of the $2.1 billion of utilized coverage from NICO related to uncollectible Third Party Recoverables.

                        The other contract is a reinsurance cover with General Reinsurance Corporation, or GRC, for up to $570 million of additional losses on all claims arising from accident years 2000 and prior. As of December 31, 2006,2007, OneBeacon has ceded estimated incurred losses of $550 million to the GRC Cover. Pursuant to the GRC Cover, OneBeacon is not entitled to recover losses to the full contract limit if such losses are reimbursed by GRC more quickly than anticipated at the time the contract was signed. OneBeacon intends to only seek reimbursement from GRC for claims which result in payment patterns similar to those supporting the recoverables recorded pursuant to the GRC Cover. The economic cost of not submitting certain other eligible claims to GRC is primarily the investment spread between the rate credited by GRC and the rate achieved by OneBeacon on its investments. This cost, if any, is expected to be immaterial.


                Reinsurance contracts do not relieve OneBeacon of its obligation to its policyholders. Therefore, collectibility of balances due from reinsurers is critical to its financial strength. The following table provides a listing of OneBeacon’sOneBeacon's top reinsurers, excluding industry pools and associations and affiliates of White Mountains, based upon recoverable amounts, the percentage of total reinsurance recoverables and the reinsurer’sreinsurer's A.M. Best rating.

                Top Reinsurers (Millions)

                 

                Balance at
                December 31, 2006

                 

                % of Total

                 

                A.M. Best
                Rating (1)

                 

                 Balance at December 31, 2007
                 % of Total
                 A.M. Best
                Rating(1)

                Subsidiaries of Berkshire (NICO and GRC) (2)

                 

                $

                2,217.2

                 

                71

                %

                A++

                 

                Munich RE America (formerly Amer Re)

                 

                59.3

                 

                2

                %

                A

                 

                Subsidiaries of Berkshire (NICO and GRC)(2) $2,074.6 78.2%A++

                Nichido (formerly Tokio Fire and Marine Insurance Company)

                 

                52.3

                 

                2

                %

                A++

                 

                 57.7 2.2%A++

                Liberty Mutual and subsidiaries (3)

                 

                42.5

                 

                1

                %

                A

                 

                Munich Re America (formerly Amer Re) 48.7 1.8%A+
                Liberty Mutual and subsidiaries(3) 29.9 1.1%A

                Swiss Re

                 

                22.7

                 

                1

                %

                A+

                 

                 24.4 .9%A+

                (1)
                A.M. Best ratings as detailed above are: “A+"A++" (Superior, which is the highest of fifteen ratings), “A+” ( Superior,"A+" (Superior, which is the second highest of fifteen ratings) and “A”"A" (Excellent, which is the third highest of fifteen ratings).

                Ratings are as of December 31, 2007.

                (2)
                Includes $404.0 million of Third Party Recoverables, which NICO would pay under the terms of the NICO Cover if they are unable to collect from third party reinsurers. OneBeacon also has an additional $384$320.7 million of Third Party Recoverables from various reinsurers, the majority of which are rated “A”"A" or better by A.M. Best.



                (3)
                At December 31, 2006,2007, OneBeacon had assumed balances payable and expenses payable of approximately $28.7$28.8 million under its renewal rights agreement with Liberty Mutual Insurance Group (“("Liberty Mutual”Mutual"), which expired on October 31, 2003. In the event of a Liberty Mutual insolvency, OneBeacon has the right to offset these balances against its reinsurance recoverable due from Liberty Mutual.


                WhiteMountains Re

                        For the three years ended December 31, 2007, the majority of White Mountains Re’s Re's reinsurance protection iswas provided through Folksamerica Re’sFolksamerica's quota share retrocessional arrangements with Olympus and a newly-formed reinsurer, Helicon Reinsurance Company, Ltd. (“Helicon”("Helicon") and through excess of loss protection purchased by Sirius International to cover Sirius’Sirius International's property catastrophe and aviation exposures. These reinsurance protections are designed to increase White Mountains Re’sRe's underwriting capacity, where appropriate, and to reduce its potential loss exposure to any large, or series of smaller, catastrophe events.

                Under White Mountains Re’s 2006 arrangements with        Folksamerica ceded 35% of its 2007 underwriting year short-tailed excess of loss business, mainly property to Olympus and Helicon with each sharing approximately 55% and 45%, respectively. Folksamerica Re ceded 35% of its 2006 underwriting year short-tailed excess of loss business, mainly property and marine.to Olympus and Helicon, sharedwith each sharing approximately 56% and 44%, respectively, in the 2006 underwriting year cession. Under White Mountains Re’s 2005 arrangements with Olympus,respectively. Folksamerica Re ceded up to 75% of substantially all of its 2005 underwriting year short-tailed excess of loss business, mainly property and marine, and 50% of its 2005 underwriting year proportional property business and Sirius International ceded 25% of its 2005 underwriting year short-tailed proportional and excess of loss business.business to Olympus. White Mountains Re received fee income based on premiums ceded to Olympus and Helicon.

                During 2007, Folksamerica Re will continue to cede 35% of its 2007 underwriting year short-tailed excess of lossbusiness, mainly property and marine, did not renew the quota share arrangements with Olympus and Helicon sharing approximately 55%for 2008. Helicon was acquired by White Mountains Re on January 7, 2008. Olympus will continue to be responsible to pay losses on exposures that have been ceded to it and 45%, respectively, inwill continue to earn premiums related primarily to the run-off of underwriting year 2007.

                White Mountains Re is also entitled to receive a profit commission with respect to the profitability of the business recommended to Olympus and Helicon. However, this profit commission arrangement is subject to a deficit carryforward whereby net underwriting losses from one year carryover to future years. As a result of the Gulf Coast hurricanes and several other significant loss events during 2005, Olympus recorded substantial net underwriting losses. Accordingly, White Mountains Re did not record a profit commission from Olympus or Helicon during 2007, 2006 or 2005 and does not expect to record profit commissions from Olympus or Helicon for the foreseeable future.

                At December 31, 20062007 and 2005,2006, White Mountains Re had $655.0$226.8 million and $871.8$655.0 million of reinsurance recoverables from Olympus. Included in the December 31, 2005 amount is $640.7 million related to hurricanes Katrina, Rita and Wilma. White Mountains Re’sRe's reinsurance recoverables from Olympus recorded as of December 31, 2006,2007, are fully collateralized in the form of assets in a trust, funds held and offsetting balances payable.


                In 2000, Folksamerica purchased a reinsurance contract from Imagine Re (the “Imagine Cover”"Imagine Cover") to reduce its statutory operating leverage and protect its surplus from adverse development relating to A&E exposures as well asthe reserves assumed in certain recent acquisitions. In accordance with SFAS 113, the amounts related to reserves transferred to Imagine Re for liabilities incurred as a result of past insurable events have been accounted for as retroactive reinsurance. At December 31, 2007 and 2006, and 2005, Folksamerica’sFolksamerica's reinsurance recoverables included $186.9$163.6 million and $221.7$186.9 million recorded under the Imagine Cover. All balances due from Imagine are fully collateralized, either with Folksamerica as the beneficiary of invested assets in a trust, with funds held, or through a letter of credit. As of December 31, 2003, the entire $115.0 million limit available under this contract had been fully utilized. At December 31, 20062007 and 2005,2006, Folksamerica had recorded $29.3$25.5 million and $36.8$29.3 million in deferred gains related to retroactive reinsurance with Imagine Re. White Mountains Re is recognizing these deferred gains into income over the expected settlement period of the underlying claims, and accordingly recognized $3.9 million, $7.5 million $5.7 million and $8.1$5.7 million of such deferred gains during 2007, 2006 2005 and 2004.2005.

                Reinsurance contracts do not relieve White Mountains Re of its obligation to its ceding companies. Therefore,collectibility of balances due from its retrocessional reinsurers is critical to White Mountains Re’sRe's financial strength.

                The following table provides a listing of White Mountains Re’sRe's top reinsurers based upon recoverable amounts, the percentage of total recoverables and the reinsurer’sreinsurer's A.M. Best Rating.

                Top Reinsurers (Millions)

                 

                Balance at
                December 31, 2006

                 

                % of Total

                 

                A.M. Best
                Rating (2)

                 

                % Collateralized

                 

                 Balance at December 31, 2007
                 % of Total
                 A.M. Best
                Rating(2)

                 % Collateralized
                 

                Olympus (1)(3)

                 

                $

                655.0

                 

                52

                %

                N/A

                 

                100

                %

                Imagine Re (1)

                 

                186.9

                 

                15

                %

                A-

                 

                100

                %

                London Life (1)

                 

                118.9

                 

                9

                %

                A

                 

                100

                %

                Olympus(1)(3) $226.8 27%NR-4 100%
                Imagine Re(1) 163.6 19%A- 100%

                General Re

                 

                71.2

                 

                6

                %

                A++

                 

                3

                %

                 94.7 11%A++ 1%
                London Life(1) 93.1 11%A 100%

                St. Paul Travelers Group

                 

                63.3

                 

                5

                %

                A+

                 

                %

                 59.4 7%A+ %

                (1)
                Represents non-U.S. insurance entities which balances are fully collateralized through Funds Held, Letters of Credit or Trust Agreements.



                (2)
                A.M. Best ratings as detailed above are: “A+"NR-4" (Not rated per company request), "A++" (Superior, which is the highest of fifteen ratings), “A”"A+" (Superior, which is the second highest of fifteen ratings), "A" (Excellent, which is the third highest of fifteen ratings), “A-” (Excellent,"A-"(Excellent, which is the fourth highest of fifteen ratings) and “B+” (Very Good, which is the sixth highest. Ratings are as of fifteen ratings).

                December 31, 2007.

                (3)
                Gross of amounts due to Olympus under its indemnity agreement with Folksamerica.


                Folksamerica Holdings.

                NOTE 5. Investment Securities

                White Mountains’Mountains' net investment income is comprised primarily of interest income associated with White Mountains’Mountains' fixed maturity investments, dividend income from its equity investments and interest income from its short-termshort-term investments. Net investment income for 2007, 2006 2005 and 20042005 consisted of the following:

                 

                 

                Year Ended December 31,

                 

                Millions

                 

                2006

                 

                2005

                 

                2004

                 

                Investment income:

                 

                 

                 

                 

                 

                 

                 

                Fixed maturity investments

                 

                $

                341.6

                 

                $

                332.1

                 

                $

                304.3

                 

                Short-term investments

                 

                63.3

                 

                51.7

                 

                24.9

                 

                Common equity securities

                 

                29.8

                 

                54.5

                 

                25.1

                 

                Other

                 

                14.7

                 

                67.9

                 

                15.0

                 

                Total investment income

                 

                449.4

                 

                506.2

                 

                369.3

                 

                Less investment expenses

                 

                (13.9

                )

                (14.7

                )

                (8.4

                )

                Net investment income, pre-tax

                 

                $

                435.5

                 

                $

                491.5

                 

                $

                360.9

                 

                 
                 Year Ended December 31,
                 
                Millions

                 
                 2007
                 2006
                 2005
                 
                Investment income:          
                 Fixed maturity investments $398.4 $339.0 $330.4 
                 Short-term investments  72.6  63.3  51.7 
                 Common equity securities  24.3  29.8  54.5 
                 Other  46.1  14.7  67.9 
                 Convertible fixed maturity investments  7.7  2.6  1.7 
                  
                 
                 
                 
                Total investment income  549.1  449.4  506.2 
                 Less investment expenses  (16.1) (13.9) (14.7)
                  
                 
                 
                 
                Net investment income, pre-tax $533.0 $435.5 $491.5 
                  
                 
                 
                 

                        

                During the first quarter of 2005, Montpelier Re declared a special dividend of $5.50 per share, payable to holders of both its common shares and warrants to acquire its common shares. White Mountains recorded pre-tax investment income of $74.1 million in the first quarter for this special dividend, of which $34.7 million (relating to its common share investment) was included in net investment income from common equity securities and $39.4 million(relating (relating to its warrant investment) was included in net investment income from other investments. For the year ended December 31, 2006, White Mountains also recorded an aggregate of $3.6 million in pre-tax investment income from Montpelier Re’sRe's regular quarterly dividend.

                The composition of realized investment gains (losses) consisted of the following:

                 

                Year Ended December 31,

                 


                 Year Ended December 31,
                 
                Millions

                Millions

                 

                 

                2006

                 

                2005

                 

                2004

                 

                2007
                 2006
                 2005
                 

                Fixed maturity investments

                 

                $

                38.2

                 

                $

                58.7

                 

                $

                32.2

                 

                Fixed maturity investments $14.8 $10.3 $51.2 

                Common equity securities

                 

                142.0

                 

                93.5

                 

                100.3

                 

                Common equity securities 123.1 142.0 94.6 

                Other investments

                 

                92.5

                 

                (39.6

                )

                48.6

                 

                Other investments 111.9 90.0 (40.7)

                Net realized investment gains, pre-tax

                 

                272.7

                 

                112.6

                 

                181.1

                 

                Convertible fixed maturity investmentsConvertible fixed maturity investments 13.4 30.4 7.5 
                 
                 
                 
                 
                Net realized investment gains, pre-tax 263.2 272.7 112.6 

                Income taxes attributable to realized investment gains and losses

                 

                (74.1

                )

                (54.2

                )

                (56.7

                )


                Income taxes attributable to realized investment gains and losses

                 

                 

                (85.8

                )

                 

                (74.1

                )

                 

                (54.2

                )

                Net realized investment gains, after-tax

                 

                $

                198.6

                 

                $

                58.4

                 

                $

                124.4

                 

                 
                 
                 
                 
                Net realized investment gains, after-tax $177.4 $198.6 $58.4 
                 
                 
                 
                 

                        

                Net realized gains from common equity securities include gains of $.4 million, $5.5 million and losses of $54.8 million on Montpelier Re common shares for 2007, 2006, and 2005. Net realized gains (losses) from other investments include losses of$2.5 million, $.7 million, losses ofand $110.3 million and gains of $15.7 million on Montpelier Re warrants for 2007, 2006 2005 and 20042005 and investment gains of $23.3 million, $6.2 million, and $10.5 million for 2007, 2006, and 2005 on its Symetra warrants.

                White Mountains recognized gross realized investment gains of $350.9 million, $344.4 million and $356.3 million and $229.7 million and gross realized investment losses of $87.7 million, $71.7 million $243.7 million and $48.6$243.7 million on sales of investment securities during 2007, 2006 2005 and 2004.2005. Of the $243.7 million in losses realized during 2005, $110.3 million related to the Company’sCompany's investment in Montpelier Re warrants, $54.8 million of other-than-temporary impairment related to White Mountains’Mountains' investment in Montpelier Re common shares and $11.4 million of foreign exchange losses.

                In 2001, the Company received        On May 1, 2007, White Mountains sold all of its remaining interest in Montpelier Re, which consisted of 939,039 common shares and warrants to acquire 4,781,572purchase 7,172,376 common shares of Montpelier Re at $16.67 pershare (as adjusted for stock splits) that are exercisable until December 2011. During the first quarter of 2004, White Mountains sold 4.5 million common shares of Montpelier Re to third parties for nettotal proceeds of $155.3$65 million resulting in a realized investment gainand recognized an after tax loss of $35.2$1.8 million. Also during the first quarter of 2004, White Mountains purchased additional warrants to acquire 2,390,786 common shares of Montpelier Re from an existing warrant holder for $54.1 million in cash, thereby raising the total number of such warrants owned by White Mountains to 7,172,358.


                The following table summarizes the carrying value of White Mountains’Mountains' investment in Montpelier Re as of December 31, 20062007 and December 31, 2005:2006:

                 

                As of December 31, 2006

                 

                As of December 31, 2005

                 

                 

                 

                 

                Carrying

                 

                Fair

                 

                 

                 

                Carrying

                 

                Fair

                 

                 As of December 31, 2007
                 As of December 31, 2006

                Millions

                Millions

                 

                Shares

                 

                Value

                 

                Value

                 

                Shares

                 

                Value

                 

                Value

                 

                 Shares
                 Carrying Value
                 Fair Value
                 Shares
                 Carrying Value
                 Fair Value

                Montpelier Re

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                            

                Common shares

                Common shares

                 

                0.9

                 

                $

                17.0

                 

                $

                17.0

                 

                6.3

                 

                $

                115.9

                 

                $

                115.9

                 

                  $ $ .9 $17.0 $17.0

                Warrants to acquire common shares

                Warrants to acquire common shares

                 

                7.2

                 

                49.9

                 

                49.9

                 

                7.2

                 

                50.6

                 

                50.6

                 

                    7.2 49.9 49.9
                 
                 
                 
                 
                 
                 

                Total

                Total

                 

                8.1

                 

                $

                66.9

                 

                $

                66.9

                 

                13.5

                 

                $

                166.5

                 

                $

                166.5

                 

                  $ $ 8.1 $66.9 $66.9
                 
                 
                 
                 
                 
                 

                        

                As of December 31, 20062007 and 2005,2006, White Mountains reported $66.8$46.4 million and $43.4$66.8 million in accounts payable on unsettled investment purchases and $8.5$201.1 million and $21.7$8.5 million in accounts receivable on unsettled investment sales.


                        investment sales.

                The components of White Mountains’Mountains' change in unrealized investment gains, after-tax, as recorded on the statements of income and comprehensive income were as follows:

                 

                Year Ended December 31,

                 


                 Year Ended December 31,
                 

                Millions

                 

                2006

                 

                2005

                 

                2004

                 

                Millions

                 

                Net change in pre-tax unrealized gains for investment securities held

                 

                $

                225.7

                 

                $

                (25.1

                )

                $

                250.0

                 

                Millions

                Millions

                2007
                 2006
                 2005
                 
                 $214.6 $219.5 $(25.1)

                Net change in pre-tax unrealized gains (losses) from investments in unconsolidated affiliates

                 

                (38.3

                )

                (45.3

                )

                51.6

                 

                Net change in pre-tax unrealized gains (losses) from investments in unconsolidated affiliates (2.2) (32.1) (45.3)

                Net change in pre-tax unrealized investment gains (losses) for investments held

                 

                187.4

                 

                (70.4

                )

                301.6

                 

                 
                 
                 
                 
                Net change in pre-tax unrealized investment gains (losses) for investments held 212.4 187.4 (70.4)

                Income taxes attributable to investments held

                 

                139.6

                 

                19.6

                 

                (83.6

                )

                Income taxes attributable to investments held (73.5) (66.8) 19.6 

                Net change in unrealized gains (losses) for investments held, after-tax

                 

                327.0

                 

                (50.8

                )

                218.0

                 

                 
                 
                 
                 
                Net change in unrealized gains (losses) for investments held, after-tax 138.9 120.6 (50.8)

                 

                 

                 

                 

                 

                 

                 

                 
                 
                 
                 

                Recognition of pre-tax net unrealized gains for investments sold

                 

                (217.8

                )

                (190.1

                )

                (129.6

                )

                Recognition of pre-tax net unrealized gains for investments sold (204.8) (217.8) (190.1)

                Income taxes attributable to investments sold

                 

                61.8

                 

                58.7

                 

                41.7

                 

                Income taxes attributable to investments sold 77.7 61.8 58.7 
                 
                 
                 
                 

                Recognition of net unrealized gains for investments sold, after-tax

                 

                (156.0

                )

                (131.4

                )

                (87.9

                )

                Recognition of net unrealized gains for investments sold, after-tax (127.1) (156.0) (131.4)

                 

                 

                 

                 

                 

                 

                 

                 
                 
                 
                 

                Change in net unrealized investment gains (losses), after-tax

                 

                171.0

                 

                (182.2

                )

                130.1

                 

                Change in net unrealized investment gains (losses), after-tax 11.8 (35.4) (182.2)

                 

                 

                 

                 

                 

                 

                 

                Change in net unrealized foreign currency gains (losses) on investments, after-tax

                 

                77.6

                 

                (39.5

                )

                23.7

                 

                Change in net unrealized foreign currency gains (losses) on investments, after-tax 31.9 77.6 (39.5)

                Net realized investment gains, after-tax

                 

                198.6

                 

                58.4

                 

                124.4

                 

                Net realized investment gains, after-tax 177.4 198.6 58.4 
                 
                 
                 
                 

                Total investment gains (losses) recorded during the period, after-tax

                 

                $

                447.2

                 

                $

                (163.3

                )

                $

                278.2

                 

                Total investment gains (losses) recorded during the period, after-tax $221.1 $240.8 $(163.3)
                 
                 
                 
                 

                        

                The components of White Mountains’Mountains' ending net unrealized investment gains and losses on its investment portfolio and its investments in unconsolidated insurance affiliates were as follows:

                 

                 

                December 31,

                 

                Millions

                 

                2006

                 

                2005

                 

                Investment securities:

                 

                 

                 

                 

                 

                Gross unrealized investment gains

                 

                $

                353.6

                 

                $

                368.4

                 

                Gross unrealized investment losses

                 

                (52.2

                )

                (68.8

                )

                Net unrealized gains from investment securities

                 

                301.4

                 

                299.6

                 

                Net unrealized gains from investments in unconsolidated insurance affiliates

                 

                .3

                 

                32.5

                 

                Total net unrealized investment gains, before tax

                 

                301.7

                 

                332.1

                 

                Income taxes attributable to such gains

                 

                (103.2

                )

                (98.2

                )

                Minority interest

                 

                (4.5

                )

                 

                Total net unrealized investment gains, after-tax

                 

                $

                194.0

                 

                $

                233.9

                 

                 
                 December 31,
                 
                Millions

                 
                 2007
                 2006
                 
                Investment securities:       
                 Gross unrealized investment gains $396.8 $353.6 
                 Gross unrealized investment losses  (85.7) (52.2)
                  
                 
                 
                Net unrealized gains from investment securities  311.1  301.4 
                Net unrealized gains (losses) from investments in unconsolidated affiliates  (1.9) .3 
                  
                 
                 
                 Total net unrealized investment gains, before tax  309.2  301.7 
                  Income taxes attributable to such gains  (99.0) (103.2)
                  Minority interest  (3.2) (4.5)
                  
                 
                 
                 Total net unrealized investment gains, after-tax $207.0 $194.0 
                  
                 
                 

                        


                The cost or amortized cost, gross unrealized investment gains and losses, and carrying values of White Mountains’Mountains' fixed maturity available-for-sale investments as of December 31, 20062007 and 2005,2006, were as follows:

                 

                December 31, 2006

                 


                 December 31, 2007

                Millions

                 

                Cost or
                amortized
                cost

                 

                Gross
                unrealized
                gains

                 

                Gross
                unrealized
                losses

                 

                Net foreign
                currency
                gains
                (losses)

                 

                Carrying
                value

                 

                Millions

                 Cost or amortized cost
                 Gross unrealized gains
                 Gross unrealized losses
                 Net foreign currency gains (losses)
                 Carrying value

                U.S. Government obligations

                 

                $

                1,651.3

                 

                $

                5.0

                 

                $

                (11.9

                )

                $

                 

                $

                1,644.4

                 

                U.S. Government obligations $1,250.9 $30.5 $(1.7)$ $1,279.7

                Debt securities issued by industrial corporations

                 

                2,478.3

                 

                21.8

                 

                (23.6

                )

                25.4

                 

                2,501.9

                 

                Debt securities issued by industrial corporations 2,095.8 30.7 (31.1) 35.3 2,130.7

                Municipal obligations

                 

                15.5

                 

                .5

                 

                 

                 

                16.0

                 

                Municipal obligations 11.9 .5   12.4

                Asset-backed securities

                 

                2,899.1

                 

                10.8

                 

                (7.5

                )

                2.3

                 

                2,904.7

                 

                Mortgage-backed and asset-backed securitiesMortgage-backed and asset-backed securities 2,882.6 21.4 (7.3) 1.9 2,898.6

                Foreign government obligations

                 

                657.2

                 

                2.1

                 

                (6.1

                )

                55.2

                 

                708.4

                 

                Foreign government obligations 792.3 2.6 (5.2) 86.6 876.3

                Preferred stocks

                 

                111.5

                 

                17.1

                 

                (.4

                )

                7.9

                 

                136.1

                 

                Preferred stocks 159.5 8.2 (2.3) 8.4 173.8

                Total fixed maturity investments

                 

                $

                7,812.9

                 

                $

                57.3

                 

                $

                (49.5

                )

                $

                90.8

                 

                $

                7,911.5

                 

                 
                 
                 
                 
                 
                Total fixed maturity investments $7,193.0 $93.9 $(47.6)$132.2 $7,371.5
                 
                 
                 
                 
                 

                 
                 December 31, 2006
                Millions

                 Cost or amortized cost
                 Gross unrealized gains
                 Gross unrealized losses
                 Net foreign currency gains
                 Carrying value
                U.S. Government obligations $1,702.3 $8.1 $(11.4)$ $1,699.0
                Debt securities issued by industrial corporations  1,939.2  20.2  (23.6) 25.1  1,960.9
                Municipal obligations  15.5  .5      16.0
                Mortgage-backed and asset-backed securities  2,957.7  9.3  (8.0) 2.6  2,961.6
                Foreign government obligations  657.2  2.1  (6.1) 55.2  708.4
                Preferred stocks  105.1  16.8  (.4) 7.9  129.4
                  
                 
                 
                 
                 
                 Total fixed maturity investments $7,377.0 $57.0 $(49.5)$90.8 $7,475.3
                  
                 
                 
                 
                 

                        

                 

                 

                December 31, 2005

                 

                Millions

                 

                Cost or
                amortized
                cost

                 

                Gross
                unrealized
                gains

                 

                Gross
                unrealized
                losses

                 

                Net foreign
                currency
                gains
                (losses)

                 

                Carrying
                value

                 

                U.S. Government obligations

                 

                $

                1,785.9

                 

                $

                6.6

                 

                $

                (16.5

                )

                $

                 

                $

                1,776.0

                 

                Debt securities issued by industrial corporations

                 

                2,843.4

                 

                78.2

                 

                (28.5

                )

                (25.1

                )

                2,868.0

                 

                Municipal obligations

                 

                66.6

                 

                .9

                 

                (.6

                )

                 

                66.9

                 

                Asset-backed securities

                 

                2,124.5

                 

                3.4

                 

                (16.1

                )

                5.1

                 

                2,116.9

                 

                Foreign government obligations

                 

                683.0

                 

                8.0

                 

                (3.1

                )

                .2

                 

                688.1

                 

                Preferred stocks

                 

                45.0

                 

                17.8

                 

                (.2

                )

                4.2

                 

                66.8

                 

                Total fixed maturity investments

                 

                $

                7,548.4

                 

                $

                114.9

                 

                $

                (65.0

                )

                $

                (15.6

                )

                $

                7,582.7

                 

                The trust account investments comprise $305.0$305.5 million of fixed maturity investments and $33.9$.1 million of short-termshort-term investments, classified as held-to-maturity. The carrying value, gross unrealized investment gains and losses, and estimated fair values of these investments as of December 31, 2007 and December 31, 2006, were as follows:

                 

                 

                December 31, 2006

                 

                Millions

                 

                Carrying
                value

                 

                Gross
                unrealized
                gains

                 

                Gross
                unrealized
                losses

                 

                Net foreign
                currency
                gains
                (losses)

                 

                Estimated
                fair
                value

                 

                U.S. Government obligations - fixed maturities

                 

                $

                305.0

                 

                $

                 

                $

                (1.0

                )

                $

                 

                $

                304.0

                 

                U.S. Government obligations - short-term

                 

                $

                33.9

                 

                $

                 

                $

                 

                $

                 

                $

                33.9

                 

                Total trust account investments

                 

                $

                338.9

                 

                $

                 

                $

                (1.0

                )

                $

                 

                $

                337.9

                 

                 
                 December 31, 2007
                Millions

                 Carrying value
                 Gross unrealized gains
                 Gross unrealized losses
                 Net foreign currency gains
                 Estimated fair value
                U.S. Government obligation—fixed maturities $305.5 $1.4 $ $ $306.9
                U.S. Government obligations—short-term $.1 $ $ $ $.1
                  
                 
                 
                 
                 
                 Total trust account investments $305.6 $1.4 $ $ $307.0
                  
                 
                 
                 
                 
                 
                 December 31, 2006
                Millions

                 Carrying value
                 Gross unrealized gains
                 Gross unrealized losses
                 Net foreign currency gains
                 Estimated fair value
                U.S. Government obligations—fixed maturities $305.0 $ $(1.0)$ $304.0
                U.S. Government obligations—short-term $33.9 $ $ $ $33.9
                  
                 
                 
                 
                 
                 Total trust account investments $338.9 $ $(1.0)$ $337.9
                  
                 
                 
                 
                 

                        

                The cost or amortized cost and carrying value of White Mountains’Mountains' fixed maturity available-for-sale investments and convertible bonds, at December 31, 20062007 is presented below by contractual maturity. Actual maturities could differ from contractual maturities because borrowers may have the right to call or prepay certain obligations with or without call or prepayment penalties.


                 

                 

                December 31, 2006

                 

                Millions

                 

                Cost or
                amortized cost

                 

                Carrying
                value

                 

                Due in one year or less

                 

                $

                432.4

                 

                $

                449.2

                 

                Due after one year through five years

                 

                2,766.6

                 

                2,810.7

                 

                Due after five years through ten years

                 

                1,135.7

                 

                1,139.6

                 

                Due after ten years

                 

                467.6

                 

                471.2

                 

                Asset-backed securities

                 

                2,899.1

                 

                2,904.7

                 

                Preferred stocks

                 

                111.5

                 

                136.1

                 

                Total

                 

                $

                7,812.9

                 

                $

                7,911.5

                 

                The carrying value and estimated fair value All of White Mountains’Mountains' held-to-maturity trust account investments at December 31, 2006 is presented below by contractual maturity.mature within one year.

                 

                December 31, 2006

                 

                 December 31, 2007

                Millions

                 

                Carrying
                value

                 

                Estimated
                fair value

                 

                 Cost or amortized cost
                 Carrying value

                Due in one year or less

                 

                $

                47.2

                 

                $

                47.2

                 

                 $627.5 $665.4

                Due after one year through five years

                 

                291.7

                 

                290.7

                 

                 2,951.2 3,056.5

                Due after five years through ten years

                 

                 

                 

                 487.0 504.1

                Due after ten years

                 

                 

                 

                 575.8 563.7
                Mortgage-backed and asset-backed securities 2,882.6 2,898.6
                Preferred stocks 159.5 173.8
                 
                 

                Total

                 

                $

                338.9

                 

                $

                337.9

                 

                 $7,683.6 $7,862.1
                 
                 

                        

                The cost or amortized cost, gross unrealized investment gains and losses, and carrying values of WhiteMountains’ Mountains' common equity securities and other investments as of December 31, 20062007 and 2005,2006, were as follows:

                 

                December 31, 2006

                 

                 December 31, 2007

                Millions

                 

                Cost or
                amortized
                cost

                 

                Gross
                unrealized
                gains

                 

                Gross
                unrealized
                losses

                 

                Net foreign
                currency
                gains

                 

                Carrying
                Value

                 

                 Cost or amortized cost
                 Gross unrealized gains
                 Gross unrealized losses
                 Net foreign currency gains (losses)
                 Carrying value

                Common equity securities

                 

                $

                972.0

                 

                $

                237.2

                 

                $

                (1.3

                )

                $

                4.7

                 

                $

                1,212.6

                 

                 $1,333.9 $234.8 $(34.8)$16.8 $1,550.7

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Other investments

                 

                $

                467.1

                 

                $

                59.1

                 

                $

                (1.4

                )

                $

                 

                $

                542.8

                 

                 $539.2 $68.1 $(3.3)$(.7)$603.3
                 
                 December 31, 2006
                Millions

                 Cost or amortized cost
                 Gross unrealized gains
                 Gross unrealized losses
                 Net foreign currency gains
                 Carrying value
                Common equity securities $972.0 $237.2 $(1.3)$4.7 $1,212.6
                Other investments $467.1 $59.1 $(1.4)$ $524.8

                        

                 

                 

                December 31, 2005

                 

                Millions

                 

                Cost or
                amortized
                cost

                 

                Gross
                unrealized
                gains

                 

                Gross
                unrealized
                losses

                 

                Net foreign
                currency
                gains

                 

                Carrying
                Value

                 

                Common equity securities

                 

                $

                796.5

                 

                $

                175.3

                 

                $

                (2.9

                )

                $

                (1.1

                )

                $

                967.8

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Other investments

                 

                $

                510.8

                 

                $

                78.2

                 

                $

                (.9

                )

                $

                 

                $

                588.1

                 


                White Mountains’Mountains' consolidated insurance and reinsurance operations are required to maintain deposits with certain insurance regulatory agencies in order to maintain their insurance licenses. The fair value of such deposits totalled $352.7totaled $321.7 million and $473.2$352.7 million as of December 31, 20062007 and 2005.2006.

                Sales and maturities of investments, excluding short-term investments, totalledtotaled $8,435.8 million, $6,236.4 million $6,963.9 millionand $8,024.1$6,963.9 million for the years ended December 31, 2007, 2006 2005 and 2004.2005. There were no non-cash exchanges or involuntary sales of investment securities during 2007, 2006 2005 or 2004.2005.

                The Company participates in a securities lending program whereby it loans investment securities to other institutions for short periods of time. The Company receives a fee from the borrower in return for the use of its assets and its policy is to require collateral equal to approximately 102% of the fair value of the loaned securities, which is held by a third party. All securities loaned can be redeemed on short notice. The total market value of the Company’sCompany's securities on loan at December 31, 20062007 was $636.1$642.7 million with corresponding collateral of $649.8$661.6 million.

                Impairment

                Impairment

                White Mountains’Mountains' portfolio of fixed maturity investments is comprised primarily of investment grade corporate debt securities, U.S. government and agency securities and mortgage-backed securities and are classified as available for sale. At December 31, 2006,2007, approximately 99% of White Mountains’Mountains' fixed maturity investments received an investment grade rating from Standard and Poor’s& Poor's or from Moody’sMoody's Investor Services if a given security was unrated by Standard & Poor’s.Poor's. White Mountains expects to continue to invest primarily in high quality, fixed maturity investments. Nearly all the fixed maturity investments currently held by White Mountains are publicly traded, and as such are considered to be liquid.

                Temporary losses on investment securities are recorded as unrealized losses. Temporary losses do not impact net income and earnings per share but serve to reduce comprehensive net income, shareholders’shareholders' equity and tangible book value. Unrealized losses subsequently identified as other-than-temporary impairments are recorded as realized losses. Other-than-temporary impairments previously recorded as unrealized losses do not impact comprehensive net income, shareholders’shareholders' equity and tangible book value but serve to reduce net income and earnings per share.

                For the year ended December 31, 2007, White Mountains’Mountains experienced $18.6 million in other-than-temporary impairment charges, principally comprised of $5.6 million from an investment in the common stock of Centennial Bank Holdings, Inc. and $4.9 million from a fixed maturity investment in CIT Group Inc. For the year ended December 31, 2006, $6.7 million worth of impairments were taken. During the year ended December 31, 2005, White Mountains experienced $58.4 million in pre-tax other-than-temporary impairment charges due primarily to a $54.8 million write-down of its Montpelier investment. During 2005, the market value of Montpelier common shares decreased from $38.45 per share to $18.90 per share. White Mountains' original cost of this investment was $105.4 million which was subsequently increased by $65.3 million in equity in earnings recorded by White Mountains from 2001 to 2004, the period in which it accounted for the investment under the equity method of accounting. The impairment charge represented the difference between White Mountains' GAAP cost of $170.7 million and the investment's fair value of $115.9 million at December 31, 2005.


                        White Mountains' methodology of assessing other-than-temporary impairments is based on security-specific facts and circumstances as of the balance sheet date. As a result, subsequent adverse changes in an issuers’issuers' credit quality or subsequent weakening of market conditions that differ from expectations could result in additional other­than-temporaryother-than-temporary impairments. In addition, the sale of a fixed maturity security with a previously recorded unrealized loss would result in a realized loss. Either of these situations would adversely impact net income and earnings per share but would not impact comprehensive net income, shareholders’shareholders' equity or tangible book value.

                The following table presents an analysis of the continuous periods during which White Mountains has heldinvestment positions which were carried at an unrealized loss as of December 31, 20062007 (excluding short-term investments):


                 
                 December 31, 2007
                 
                ($ in millions)

                 0-6 Months
                 6-12 Months
                 > 12 Months
                 Total
                 
                Fixed maturity investments:             
                 Number of positions  171  83  186  440 
                 Market value $1,148.7 $631.7 $1,025.4 $2,805.8 
                 Amortized cost $1,165.6 $649.0 $1,038.8 $2,853.4 
                 Unrealized loss $(16.9)$(17.3)$(13.4)$(47.6)
                  
                 
                 
                 
                 

                Common equity securities:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 Number of positions  276  71  3  350 
                 Market value $289.1 $23.3 $1.0 $313.4 
                 Amortized cost $319.8 $27.3 $1.1 $348.2 
                 Unrealized loss $(30.7)$(4.0)$(.1)$(34.8)
                  
                 
                 
                 
                 

                Other investments:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 Number of positions  7  1  1  9 
                 Market value $33.4 $4.1 $.3 $37.8 
                 Amortized cost $36.3 $4.4 $.4 $41.1 
                 Unrealized loss $(2.9)$(.3)$(.1)$(3.3)
                  
                 
                 
                 
                 

                Total:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 Number of positions  454  155  190  799 
                 Market value $1,471.2 $659.1 $1,026.7 $3,157.0 
                 Amortized cost $1,521.7 $680.7 $1,040.3 $3,242.7 
                 Unrealized loss $(50.5)$(21.6)$(13.6)$(85.7)
                  
                 
                 
                 
                 

                % of total gross unrealized losses

                 

                 

                58.9

                %

                 

                25.2

                %

                 

                15.9

                %

                 

                100.0

                %
                  
                 
                 
                 
                 

                        

                 

                 

                December 31, 2006

                 

                 

                 

                0-6

                 

                6-12

                 

                > 12

                 

                 

                 

                ($ in millions)

                 

                Months

                 

                Months

                 

                Months

                 

                Total

                 

                Fixed maturity investments:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Number of positions

                 

                245

                 

                79

                 

                328

                 

                652

                 

                Market value

                 

                $

                1,947.8

                 

                $

                565.4

                 

                $

                2,207.5

                 

                $

                4,720.7

                 

                Amortized cost

                 

                $

                1,953.3

                 

                $

                569.1

                 

                $

                2,247.8

                 

                $

                4,770.2

                 

                Unrealized loss

                 

                $

                (5.5

                )

                $

                (3.7

                )

                $

                (40.3

                )

                $

                (49.5

                )

                Common equity securities:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Number of positions

                 

                52

                 

                3

                 

                 

                55

                 

                Market value

                 

                $

                64.4

                 

                $

                .1

                 

                $

                 

                $

                64.5

                 

                Amortized cost

                 

                $

                65.7

                 

                $

                .1

                 

                $

                 

                $

                65.8

                 

                Unrealized loss

                 

                $

                (1.3

                )

                $

                 

                $

                 

                $

                (1.3

                )

                Other investments:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Number of positions

                 

                1

                 

                2

                 

                2

                 

                5

                 

                Market value

                 

                $

                3.8

                 

                $

                17.6

                 

                $

                2.9

                 

                $

                24.3

                 

                Amortized cost

                 

                $

                3.8

                 

                $

                18.4

                 

                $

                3.5

                 

                $

                25.7

                 

                Unrealized loss

                 

                $

                 

                $

                (.8

                )

                $

                (.6

                )

                $

                (1.4

                )

                Total:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Number of positions

                 

                298

                 

                84

                 

                330

                 

                712

                 

                Market value

                 

                $

                2,016.0

                 

                $

                583.1

                 

                $

                2,210.4

                 

                $

                4,809.5

                 

                Amortized cost

                 

                $

                2,022.8

                 

                $

                587.6

                 

                $

                2,251.3

                 

                $

                4,861.7

                 

                Unrealized loss

                 

                $

                (6.8

                )

                $

                (4.5

                )

                $

                (40.9

                )

                $

                (52.2

                )

                % of total gross unrealized losses

                 

                13.0

                %

                8.6

                %

                78.4

                %

                100.0

                %

                White Mountains believes that the gross unrealized losses relating to its fixed maturity investments at December 31, 20062007 resulted primarily from increases in market interest rates from the dates that certain investments within that portfolio were acquired as opposed to fundamental changes in the credit quality of the issuers of such securities. White Mountains views these decreases in value as being temporary because it has the intent and ability to retain such investments until recovery. However, should White Mountains determine that it no longer has the intent and ability to hold a fixed maturity investment that has an existing unrealized loss resulting from an increase in market interest rates until it recovers, this loss would be realized through the income statement at the time such determination is made. White Mountains also believes that the gross unrealized losses recorded on its common equity securities and its other investments at December 31, 20062007 resulted primarily from decreases in quoted market values from the dates that certain investments securities within that portfolio were acquired as opposed to fundamental changes in the issuer’sissuer's financial performance and near-term financial prospects. Therefore, these decreases are also viewed as being temporary. However, due to the inherent risk involved in investing in the equity markets, it is possible that the decrease in market value of these investments may ultimately prove to be other than temporary. At December 31, 2006,2007, White Mountains’Mountains' investment portfolio did not include any investment securities with an after-tax unrealized loss of more than $3.0 million for more than a six-month period.


                F-37




                NOTE 6. Debt

                White Mountains’Mountains' debt outstanding as of December 31, 20062007 and 20052006 consisted of the following:

                 

                 

                December 31,

                 

                Millions

                 

                2006

                 

                2005

                 

                Senior Notes, at face value

                 

                $

                700.0

                 

                $

                700.0

                 

                Unamortized original issue discount

                 

                (1.3

                )

                (1.5

                )

                Senior Notes, carrying value

                 

                698.7

                 

                698.5

                 

                 

                 

                 

                 

                 

                 

                WTM Bank Facility

                 

                320.0

                 

                 

                FAC Bank Facility

                 

                 

                 

                Mortgage Note

                 

                40.8

                 

                18.4

                 

                Sierra Note

                 

                27.2

                 

                27.2

                 

                Atlantic Specialty Note

                 

                20.0

                 

                20.0

                 

                Other debt

                 

                 

                15.0

                 

                Total debt

                 

                $

                1,106.7

                 

                $

                779.1

                 

                 
                 December 31,
                 
                Millions

                 
                 2007
                 2006
                 
                Fund American Senior Notes, at face value $700.0 $700.0 
                 Unamortized original issue discount  (1.1) (1.3)
                  
                 
                 
                  Fund American Senior Notes, carrying value  698.9  698.7 
                  
                 
                 
                WMRe Senior Notes, at face value  400.0   
                 Unamortized original issue discount  (1.1)  
                  
                 
                 
                   WMRe Senior Notes, carrying value  398.9   
                  
                 
                 
                WTM Bank Facility(1)    320.0 
                Fund American Bank Facility     
                Mortgage Note  40.8  40.8 
                Sierra Note(2)  36.3  27.2 
                Atlantic Specialty Note  18.0  20.0 
                  
                 
                 
                  Total debt $1,192.9 $1,106.7 
                  
                 
                 

                (1)
                The $320.0 million outstanding on December 31, 2006 was under White Mountains' previous credit facility, which was refinanced in June 2007 (See below).

                (2)
                The increase of $9.1 million in the adjustable Sierra Note is the result of a dollar-for-dollar decrease in prior year loss reserves (See Note 3).

                        

                A schedule of contractual repayments of White Mountains’Mountains' debt as of December 31, 20062007 follows:

                 

                December 31,

                 

                Millions

                 

                2006

                 

                Millions

                 December 31, 2007

                Due in one year or less

                 

                $

                2.0

                 

                Due in one year or less $2.1

                Due in two to three years

                 

                31.9

                 

                Due in two to three years 41.8

                Due in four to five years

                 

                325.6

                 

                Due in four to five years 5.7

                Due after five years

                 

                748.5

                 

                Due after five years 1,145.5

                Total

                 

                $

                1,108.0

                 

                 
                Total $1,195.1
                 

                Fund American Senior Notes

                In May 2003, Fund American Companies, Inc. (“("Fund American”American"), a wholly-owned subsidiary of OneBeacon Ltd., issued $700.0 million face value of senior unsecured debt through a public offering, at an issue price of 99.7% (the “Senior Notes”"Fund American Senior Notes"). The Fund American Senior Notes bear an annual interest rate of 5.9%, payable semi-annually in arrears on May 15 and November 15, until maturity in May 2013. Pursuant to the offering of the Fund American Senior Notes, White Mountains fully and unconditionally guaranteed the payment of principal and interest on the Fund American Senior Notes. Following the OneBeacon Offering, White Mountains continues to guarantee the payment of principal and interest on the Fund American Senior Notes. OneBeacon Ltd. pays White Mountains a guarantee fee equal to 25 basis points per annum on the outstanding principal amount of the Fund American Senior Notes. If White Mountains’Mountains' voting interest in OneBeacon Ltd.’s's common shares ceases to represent more than 50% of all their voting securities, OneBeacon Ltd. will seek to redeem, exchange or otherwise modify the senior notes in order to fully and permanently eliminate White Mountains’Mountains' obligations under its guarantee. In the event that White Mountains’Mountains' guarantee is not eliminated, the guarantee fee will increase over time up to a maximum of 450 basis points.

                Fund American incurred $7.3 million in expenses related to the issuance of the Fund American Senior Notes (including the $4.5 million underwriting discount), which have been deferred and are being recognized into interest expense over the life of the Fund American Senior Notes. Taking into effect the amortization of the original issue discount and all underwriting and issuance expenses, the Fund American Senior Notes have an effective yield to maturity of approximately 6.0% per annum.

                        At December 31, 2007, White Mountains was in compliance with all of the covenants under the Fund American Senior Notes.


                WMRe Senior Notes

                        On March 19, 2007, WMRe Group issued $400.0 million face value of senior unsecured notes at an issue price of 99.715% (the "WMRe Senior Notes") for net proceeds of $392.0 million after taking into effect both deferrable and non-deferrable issuance costs, including the interest rate lock agreement described below. The WMRe Senior Notes were issued in an offering that was exempt from the registration requirements of the Securities Act of 1933. The WMRe Senior Notes bear an annual interest rate of 6.375%, payable semi-annually in arrears on March 20 and September 20, until maturity in March 2017.

                        White Mountains Re deferred $3.6 million in expenses related to the issuance of the WMRe Senior Notes (including $2.6 million in underwriting fees), which are being recognized into interest expense over the life of the WMRe Senior Notes.

                        In anticipation of the issuance of the WMRe Senior Notes, White Mountains Re entered into an interest rate lock agreement to hedge its interest rate exposure from the date of the agreement until the pricing of the WMRe Senior Notes. The agreement was terminated on March 15, 2007 with a loss of $2.4 million, which was recorded in other comprehensive income. The loss is being reclassified from accumulated other comprehensive income over the life of the WMRe Senior Notes using the interest method and is included in interest expense. At December 31, 2007, the unamortized balance of the loss remaining in accumulated other comprehensive income was $2.3 million.

                        Taking into effect the amortization of the original issue discount and all underwriting and issuance expenses, including the interest rate lock agreement, the WMRe Senior Notes yield an effective rate of 6.49% per annum. White Mountains recorded $20.2 million of interest expense, inclusive of amortization of issuance costs and the interest rate lock agreement, on the WMRe Senior Notes for the year ended December 31, 2007.

                        At December 31, 2007, White Mountains was in compliance with all of the covenants under the WMRe Senior Notes.

                Bank Facilities

                In connection with        The net proceeds from the OneBeacon Offering,WMRe Senior Notes were distributed to White Mountains and Fund American terminated their existing $400were used in part to repay the $320 million in outstanding borrowings on White Mountains' revolving credit facility. In accordance with the mandatory commitment reduction provision in the credit facility under which they were both permitted borrowers, and replaced it with twoat the time, following the issuance of the WMRe Senior Notes the revolving credit facilities, as described below.facility commitment was reduced from $500 million to $304 million.

                In November 2006,        During the second quarter of 2007, White Mountains and White Mountains Re Group, Ltd., as co-borrowers and co-guarantors, establishedreplaced its existing credit facility with a $500new $475 million revolving credit facility that matures in November 2011June 2012 (the “WTM"WTM Bank Facility”Facility"). This new facility removed WMRe Group as co-borrower and co-guarantor, added certain intermediate holding companies of White Mountains as co-guarantors and amended and/or removed certain financial and other covenants. As of December 31, 2006, White Mountains had $320 million outstanding on this facility, which bears interest at a current rate of 5.9%. White Mountains incurred $2.5 million of interest expense on this borrowing during 2006.2007, the WTM Bank Facility was undrawn.


                In November 2006, Fund American established a $75 million revolving credit facility that matures in November 2011 (the “FAC"Fund American Bank Facility”Facility"). All borrowings under this facility are guaranteed by OneBeacon Ltd. As of December 31, 2006,2007, the FACFund American Bank Facility was undrawn.

                        At December 31, 2007, White Mountains was in compliance with all of the covenants under the WTM Bank Facility and the Fund American Bank Facility.

                Mortgage Note

                In December 2005, OneBeacon entered into a $40.8 million, 18-year mortgage note, which has a variable interest rate based upon the lender’slender's 30-day LIBOR rate, to purchase land and its U.S. headquarters building in Canton, Massachusetts. As of December 31, 2006,2007, OneBeacon had drawn down the entire $40.8 million available under the mortgage note. Repayment will commence on January 31, 2009.

                Concurrent with entering into the mortgage note, OneBeacon also entered into an interest rate swap to hedge its exposure to variability in the interest rate on the mortgage note. The notional amount of the swap is equal to the debt outstanding on the mortgage note and will be adjusted to match the drawdowns and repayments on the mortgage note so that the principal amount of the mortgage note and the notional amount of the swap are equal at all times. Under the terms of the swap, OneBeacon pays a fixed interest rate of approximately 6% and receives a variable interest rate based on the same LIBOR index used for the mortgage note. Interest paid or received on the swap is reported in interest expense. Changes in the fair value of the interest rate swap, which was a $.6$1.1 million gain,loss, after tax and net of minority interest, for the year ended December 31, 2006,2007, is reported as a component of other comprehensive income.


                Sierra Note

                In connection with its acquisition of the Sierra Group on March 31, 2004, Folksamerica Holdings entered into a $62.0 million purchase note (the “Sierra Note”"Sierra Note"), $58.0 million of which may be adjusted over its six-year term to reflect favorable or adverse loss reserve development on the acquired reserve portfolio and run-off of remaining policies in force (mainly workers compensation business), as well as certain other balance sheet protections. Since inception the closingprincipal of this acquisition, the Sierra Note has been reduced by $34.8$25.7 million as a result of adverse development on the acquired reserves and run-off of unearned premium, which includes $22.8 million of adverse development which occurred during 2005.2005 and $9.1 million of favorable development occurring in 2007. Interest accrues on the unpaid balance of the Sierra Note at a rate of 4.0% per annum, compounded quarterly, and is payable at its maturity.

                Atlantic Specialty Note

                In connection with its acquisition of Atlantic Specialty on March 31, 2004, OneBeacon issued a $20.0 million ten-year note to the seller (the “Atlantic"Atlantic Specialty Note”Note"). OneBeacon is required to repay $2.0 million of principal on the notes per year, commencing with the first payment duebeing made on January 1, 2007. The note accrues interest at a rate of 5.2%, except that the outstanding principal amount in excess of $15.0 million accrues interest at a rate of 3.6%.

                Other Debt

                OneBeacon Professional Partners (“OBPP”) and Folksamerica Specialty Underwriting, Inc. (“FSUI”) had borrowed $8.0 million and $7.0 million, respectively, from Dowling & Partners Connecticut Fund III, LP (“Fund III”) in connection with an incentive program sponsored by the State of Connecticut known as the Connecticut Insurance Reinvestment Act (the “CIR Act”). These loans were repaid during 2006.

                Interest

                Total interest expense incurred by White Mountains for its indebtedness was $73.0 million, $50.1 million and $44.5 million in 2007, 2006 and $49.1 million in 2006, 2005 and 2004.2005. Total interest paid by White Mountains for its indebtedness was $62.5 million, $47.5 million and $44.7 million in 2007, 2006 and $48.9 million in 2006, 2005 and 2004.2005.

                NOTE 7. Income Taxes

                The Company is domiciled in Bermuda and has subsidiaries domiciled in several countries. The majority of the Company’sCompany's worldwide operations are taxed in the United States. Income earned or losses incurred by non-U.S. companies will generally be subject to an overall effective tax rate lower than that imposed by the United States.

                The total income tax provision (benefit) for the years ended December 31, 2007, 2006 2005 and 20042005 consisted of the following:

                 
                 Year Ended December 31,
                 
                Millions

                 
                 2007
                 2006
                 2005
                 
                Current tax provision (benefit):          
                 Federal $105.0 $29.8 $(30.0)
                 State  .6  (1.8) (1.0)
                 Non-U.S.   39.8  18.3  39.3 
                  
                 
                 
                 
                Total current tax provision  145.4  46.3  8.3 
                  
                 
                 
                 
                Deferred tax provision (benefit):          
                 Federal  47.5  (2.2) 60.6 
                 State       
                 Non-U.S.   17.6  54.8  (32.4)
                  
                 
                 
                 
                Total deferred tax provision (benefit)  65.1  52.6  28.2 
                  
                 
                 
                 
                 Total income tax provision $210.5 $98.9 $36.5 
                  
                 
                 
                 

                 

                 

                Year Ended December 31,

                 

                Millions

                 

                2006

                 

                2005

                 

                2004

                 

                Current tax provision (benefit):

                 

                 

                 

                 

                 

                 

                 

                Federal

                 

                $

                29.8

                 

                $

                (30.0

                )

                $

                79.2

                 

                State

                 

                (1.8

                )

                (1.0

                )

                1.0

                 

                Non-U.S.

                 

                18.3

                 

                39.3

                 

                25.8

                 

                Total current tax provision

                 

                46.3

                 

                8.3

                 

                106.0

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Deferred tax provision (benefit):

                 

                 

                 

                 

                 

                 

                 

                Federal

                 

                (2.2

                )

                60.6

                 

                (59.7

                )

                State

                 

                —  

                 

                 

                 

                Non-U.S.

                 

                54.8

                 

                (32.4

                )

                .7

                 

                Total deferred tax provision (benefit)

                 

                52.6

                 

                28.2

                 

                (59.0

                )

                Total income tax provision

                 

                $

                98.9

                 

                $

                36.5

                 

                $

                47.0

                 

                Deferred income taxes reflect the net tax effects of temporary differences between the carrying amounts of assets and liabilities for financial reporting purposes and the amounts for tax purposes. An outline of the significant components of White Mountains’Mountains' deferred tax assets and liabilities follows:

                 

                 

                December 31,

                 

                Millions

                 

                2006

                 

                2005

                 

                Deferred income tax assets related to:

                 

                 

                 

                 

                 

                Discounting of loss reserves

                 

                $

                155.7

                 

                $

                197.9

                 

                Incentive compensation

                 

                90.9

                 

                78.3

                 

                Net unearned insurance and reinsurance premiums

                 

                83.8

                 

                90.2

                 

                U.S. net operating loss and tax credit carryforwards

                 

                67.2

                 

                105.2

                 

                Non-U.S. net operating losses and tax credit carryforwards

                 

                53.5

                 

                49.7

                 

                Olympus reimbursement

                 

                48.0

                 

                 

                Deferred Compensation

                 

                31.0

                 

                41.3

                 

                Deferred gain on reinsurance contract

                 

                20.9

                 

                22.0

                 

                Accrued interest

                 

                18.9

                 

                9.6

                 

                Pension Compensation Plans

                 

                11.0

                 

                19.6

                 

                Fixed assets

                 

                9.6

                 

                7.1

                 

                Involuntary pool and guaranty fund accruals

                 

                4.5

                 

                5.2

                 

                Allowance for doubtful accounts

                 

                2.8

                 

                3.8

                 

                Foreign currency translation on investments and other assets

                 

                 

                1.8

                 

                Other items

                 

                22.5

                 

                19.2

                 

                Total deferred income tax assets

                 

                $

                620.3

                 

                $

                650.9

                 

                 

                 

                 

                 

                 

                 

                Deferred income tax liabilities related to:

                 

                 

                 

                 

                 

                Safety reserve

                 

                $

                350.8

                 

                $

                260.2

                 

                Net unrealized investment gains

                 

                103.2

                 

                98.2

                 

                Deferred acquisition costs

                 

                89.6

                 

                95.8

                 

                Purchase accounting

                 

                14.8

                 

                17.4

                 

                Foreign currency translation on investments and other assets

                 

                4.9

                 

                 

                Equity in unconsolidated insurance affiliates

                 

                 

                17.9

                 

                Other items

                 

                24.8

                 

                14.0

                 

                Total deferred income tax liabilities

                 

                $

                588.1

                 

                $

                503.5

                 

                Net deferred tax asset before valuation allowance

                 

                $

                32.2

                 

                $

                147.4

                 

                Valuation allowance

                 

                (67.7

                )

                (80.5

                )

                Net deferred tax asset (liability)

                 

                $

                (35.5

                )

                $

                66.9

                 

                 
                 December 31,
                 
                Millions

                 
                 2007
                 2006
                 
                Deferred income tax assets related to:       
                 Discounting of loss reserves $152.7 $155.7 
                 Net unearned insurance and reinsurance premiums  82.9  83.8 
                 U.S. net operating loss and tax credit carryforwards  75.6  67.2 
                 Non-U.S. net operating losses and tax credit carryforwards  56.9  53.5 
                 Incentive compensation  55.9  90.9 
                 Olympus reimbursement  48.0  48.0 
                 Deferred compensation  41.8  31.0 
                 Deferred gain on reinsurance contract  19.6  20.9 
                 Fixed assets  9.2  9.6 
                 Accrued interest  7.1  18.9 
                 Pension and benefit accruals  3.4  11.0 
                 Allowance for doubtful accounts  2.8  2.8 
                 Involuntary pool and guaranty fund accruals  1.7  4.5 
                 Other items  20.4  22.5 
                  
                 
                 
                Total gross deferred income tax assets $578.0 $620.3 
                 Less valuation allowance  (59.2) (67.7)
                  
                 
                 
                Total net deferred income tax assets $518.8 $552.6 
                  
                 
                 
                Deferred income tax liabilities related to:       
                 Safety reserve $397.8 $350.8 
                 Net unrealized investment gains  99.0  103.2 
                 Deferred acquisition costs  93.7  89.6 
                 Foreign currency translation on investments  13.0  4.9 
                 Investment basis differences  11.4  11.3 
                 Purchase accounting  8.4  14.8 
                 Other items  12.1  13.5 
                  
                 
                 
                Total deferred income tax liabilities $635.4 $588.1 
                  
                 
                 
                Net deferred tax asset (liability) $(116.6)$(35.5)
                  
                 
                 

                        


                At December 31, 20062007 and 2005,2006, the total net deferred tax asset related to U.S. operations is $276.0$236.6 million and $299.3$276.0 million respectively. At December 31, 20062007 and 2005,2006, the total net deferred tax liability for non-U.S. operations (primarily Sweden) is $353.2 million and $311.5 million and 232.4 million respectively.

                At December 31, 20062007 and 2005,2006, a valuation allowance of $54.8$45.4 million and $75.1$54.8 million, respectively, was recorded for certain assets applicable to Scandinavian Re (those relating to loss reserve discounting and net operating loss carryforwards). The Company believes that it is more likely than not that these assets will not be realized and has therefore established a full valuation allowance against them. The change in the valuation allowance from 20052006 to 20062007 primarily relates to the current year NOL utilizationreduction in loss reserve discounting of $(7.3)$(7.1) million and the net effect of net operating loss carryforwards that were either utilized or expired in 20062007 of $(12.0)$(4.5) million.

                At December 31, 20062007 and 2005,2006, a valuation allowance of $12.9$13.8 million and $5.4$12.9 million, respectively, was established for net deferred tax assets of consolidated insurance reciprocals which file separate consolidated tax returns.

                        The Company believes that it is more likely than not that results of future operations will generate sufficient taxable income to realize the deferred tax asset balances (net of valuation allowance) carried at December 31, 20062007 and 2005.2006.


                A reconciliation of taxes calculated using the 35% U.S. statutory rate (the tax rate at which the majority of the Company’sCompany's worldwide operations are taxed) to the income tax provision on pre-tax earnings follows:

                 

                 

                Year Ended December 31,

                 

                Millions

                 

                2006

                 

                2005

                 

                2004

                 

                Tax provision at the U.S. statutory rate

                 

                $

                255.4

                 

                $

                102.6

                 

                $

                86.7

                 

                Differences in taxes resulting from:

                 

                 

                 

                 

                 

                 

                 

                Interest expense - dividends and accretion on preferred stock

                 

                20.5

                 

                18.3

                 

                16.7

                 

                Tax reserve adjustments

                 

                (15.6

                )

                3.5

                 

                (7.6

                )

                Tax exempt interest and dividends

                 

                (20.3

                )

                (3.2

                )

                (4.1

                )

                Purchase price adjustments

                 

                 

                (8.0

                )

                (5.0

                )

                Change in valuation allowance

                 

                0.2

                 

                (9.2

                )

                3.3

                 

                Non-U.S. earnings, net of foreign taxes

                 

                (140.8

                )

                (68.5

                )

                (18.5

                )

                Restructuring

                 

                 

                 

                16.6

                 

                Foreign tax credit

                 

                 

                 

                (38.8

                )

                Non deductible interest expense

                 

                 

                 

                1.4

                 

                Other, net

                 

                (0.5

                )

                1.0

                 

                (3.7

                )

                Total income tax provision on pre-tax earnings

                 

                $

                98.9

                 

                $

                36.5

                 

                $

                47.0

                 

                 
                 Year Ended December 31,
                 
                Millions

                 
                 2007
                 2006
                 2005
                 
                Tax provision at the U.S. statutory rate $238.5 $255.4 $102.6 
                Differences in taxes resulting from:          
                 Interest expense—dividends and accretion on preferred stock  22.9  20.5  18.3 
                 Withholding tax  18.7  6.4  (2.3)
                 Purchase price adjustments  3.1    (8.0)
                 Change in valuation allowance  2.5  .2  (9.2)
                 Tax reserve adjustments  (.4) (15.6) 3.5 
                 Tax exempt interest and dividends  (4.2) (20.3) (3.2)
                 Non-U.S. earnings, net of foreign taxes  (74.1) (147.2) (66.2)
                 Other, net  3.5  (.5) 1.0 
                  
                 
                 
                 
                Total income tax provision on pre-tax earnings $210.5 $98.9 $36.5 
                  
                 
                 
                 

                        

                The non-U.S. component of pre-tax earnings was $324.8 million, $629.7 million $247.6 million and $100.0$247.6 million for the years ended December 31, 2007, 2006 2005 and 2004,2005, respectively.

                At December 31, 2006,2007, there were U.S. net operating loss carryforwards of approximately $122.7$168.6 million available which will begin to expire in 2011. Included in these tax losses are losses of $54.3$43.1 million subject to an annual limitation on utilization under Internal Revenue Code Section 382. Also included in these losses are net operating losses of $22.7$23.3 million related to the insurance reciprocals which file separate consolidated tax returns. There were $50.2$38.7 million of net operating loss carryforwards available to reduce Swedish taxable income relating to Scandinavian Re. These net operating loss carryforwards expire as follows: $12.3 million in 2007, $14.9 million in 2008, and $23.0$23 million in 2009.2009 and $.8 million in 2010. However, on January 30, 2008, Scandinavian Re, which is a Bermuda entity, was sold to another White Mountains entity and its income will no longer will be subject to Swedish tax. Therefore, its deferred tax assets and valuation allowance related to Swedish income taxes will be eliminated going forward.

                At December 31, 2006,2007, there were alternative minimumforeign tax credit carryforwards available of approximately $6.1 million.$16.5 million, of which $11.9 million of the credit will expire in 2010. The alternative minimumremaining credit will expire between 2014-2017.

                        On January 1, 2007 the Company adopted FASB Interpretation No. 48,Accounting for Uncertainy in Income Taxes ("FIN 48"). FIN 48 prescribes when the benefit of a given tax creditposition should be recognized and how it should be measured. In connection with the adoption of FIN 48, the Company has recognized a $.2 million decrease in the liability for unrecognized tax benefits, primarily as a result of reductions in its estimates of accrued interest. The effect of adoption has been recorded as an adjustment to opening retained earnings. A reconciliation of the beginning and ending amount of unrecognized tax benefits is as follows:

                Millions

                  
                Balance at January 1, 2007 $70.6
                 Additions for tax positions related to the current year  1.1
                 Additions for tax positions of prior years  13.1
                  
                Balance at December 31, 2007 $84.8
                  

                        If recognized, $70.0 million would be recorded as a reduction to income tax expense. Also included in the balance at December 31, 2007, are $14.8 million of tax positions for which ultimate deductibility is highly certain but the timing of deductibility is uncertain. Because of the impact of deferred tax accounting, other than interest and penalties, the disallowance of the shorter deductibility period would not affect the effective tax rate but would accelerate the payment of cash to the taxing authority to an earlier period.

                        FIN 48 also addresses how interest and penalties should be accrued for uncertain tax positions, requiring that interest expense should be recognized in the first period interest would be accrued under the tax law. The Company classifies all interest and penalties on unrecognized tax benefits as part of income tax expense. During the year ended December 31, 2007 the Company recognized $1.6 million in interest expense, net of federal benefit. The balance of accrued interest at December 31, 2007 is $5.5 million, net of federal benefit.

                        With few exceptions, the Company is no longer subject to U.S. federal, state or non-U.S. income tax examinations by tax authorities for years before 2003. In 2007, the Swedish Tax Agency concluded an income tax audit of the Company's Swedish subsidiaries income tax returns for 2004 and 2005 resulting in an insignificant adjustment. The


                Internal Revenue Service (IRS) commenced an examination of certain of the Company's U.S. subsidiaries' income tax returns for 2003 and 2004 in the second quarter of 2006 that is anticipated to be completed by the end of 2008. As of December 31, 2007 the IRS has not proposed any significant adjustments to taxable income. Due to the uncertainty of the outcome of the on-going IRS examination, White Mountains cannot estimate the range of reasonably possible changes to its unrecognized tax benefits at this time. However, White Mountains does not expire.expect to receive any adjustments that would result in a material change to its financial position.

                Subsequent        Net income tax payments to (receipts from) national governments (primarily the passageUnited States) totaled $150.0 million, $(5.3) million and $(14.6) million for the years ended December 31, 2007, 2006 and 2005.

                NOTE 8. Weather Contracts

                        For the years ended December 31, 2007 and 2006, Galileo recognized $2.0 million and $2.1 million of net losses on its weather and weather contingent derivatives portfolio, excluding unamortized deferred gains of $2.9 million and $4.7 million, respectively. The fair values of Galileo's risk management products are subject to change in the Jobs Creation Actnear-term and reflect management's best estimate based on various factors including, but not limited to, realized and forecasted weather conditions, changes in interest or foreign currency exchange rates and other market factors. Estimating the fair value of 2004,derivative instruments that do not have quoted market prices requires management's judgment in determining amounts that could reasonably be expected to be received from or paid to a third party to settle the contracts. Such amounts could be materially different from the amounts that might be realized in an actual transaction to settle the contract with a third party.

                        Galileo's weather risk management contracts are summarized in the following table:

                 
                 Year Ended December 31,
                 
                Millions

                 
                 2007
                 2006
                 
                Net liability for weather derivative contracts beginning balance $12.1(1)$ 
                 Net consideration received during the year for new contracts  12.5  12.6 
                 Net payments made on contracts settled during the year  (8.7) (2.6)
                 Net decrease in fair value on settled and unsettled contracts  2.0  2.1 
                  
                 
                 
                Net liability for weather derivative contracts ending balance $17.9(2)$12.1(1)
                  
                 
                 

                (1)
                Amount includes $4.7 million in unamortized deferred gains.

                (2)
                Amount includes $2.9 million in unamortized deferred gains.

                        The following table summarizes the maturity of contracts outstanding as of December 31, 2007:

                Millions

                 < 1 Year
                 1-3 Years
                 3-5 Years
                 > 5 Years
                 Total
                 
                Net liability for contracts actively quoted $4.2 $ $ $ $4.2 
                Net liability for contracts using internal pricing models  6.1  7.6      13.7 
                  
                 
                 
                 
                 
                 
                Total net liability for weather contracts outstanding $10.3 $7.6 $ $ $17.9(1)
                  
                 
                 
                 
                 
                 

                (1)
                Amount includes $2.9 million in unamortized deferred gains.

                NOTE 9. Variable Annuity Reinsurance

                        White Mountains has entered into agreements to reinsure death and living benefit guarantees associated with certain variable annuities in Japan through its wholly owned subsidiary, WM Life Re. The accounting for benefit guarantees differs depending on whether or not the guarantee is classified as a derivative or an insurance liability.

                        At December 31, 2007 and 2006, the liability recorded for the variable annuity benefit guarantees which extendedis included in other liabilities, was $12.7 million and $(13.8) million, respectively of which $.4 million and $.1 million, respectively, were life insurance liabilities.

                        At December 31, 2007 and 2006, the carryforward period for utilizationfair value of a foreign tax credit,WM Life Re's derivative contracts was $43.7 million and $21.2 million, which are included in other assets. For the Company filed amended United States tax returns to claim a credit rather than a deduction for foreign taxes paid.years ended December 31, 2007 and 2006, WM Life Re had losses from derivatives of $.7 million and $15.7 million.

                        At December 31, 2007 WM Life Re had $8.5 million of cash and $5.0 million of securities deposited as collateral with counterparties. At December 31, 2006 $18.2WM Life Re had $2.2 million of the credit remained which will expire in 2010.cash and $7.7 million of securities deposited as collateral with counterparties.


                NOTE 10. Earnings per share

                        Basic earnings per share amounts are based on the weighted average number of common shares outstanding excluding unvested restricted common shares ("Restricted Shares"). Diluted earnings per share amounts are based on the weighted average number of common shares and the net effect of potentially dilutive common shares outstanding, based on the treasury stock method. The U.S. federalfollowing table outlines the Company's computation of earnings per share for the years ended December 31, 2007, 2006 and 2005:

                 
                 Year Ended December 31,
                 
                 
                 2007
                 2006
                 2005
                 
                Basic earnings per share numerators (in millions):          
                Income before extraordinary item $407.4 $651.8 $290.1 
                 Extraordinary item—excess of fair value of acquired net assets over cost    21.4   
                  
                 
                 
                 
                Net income $407.4 $673.2 $290.1 
                  
                 
                 
                 
                Diluted earnings per share numerators (in millions):          
                Income before extraordinary item $407.4 $651.8 $290.1 
                 Other effects on diluted earnings(1)      (3.5)
                  
                 
                 
                 
                Income before extraordinary item $407.4 $651.8 $286.6 
                  
                 
                 
                 
                 Extraordinary item—excess of fair value of acquired net assets over cost    21.4   
                  
                 
                 
                 
                Adjusted net income $407.4 $673.2 $286.6 
                  
                 
                 
                 
                Basic earnings per share denominators (in thousands):          
                 Average common shares outstanding during the period  10,784  10,780  10,774 
                 Average unvested Restricted Shares  (52) (11) (13)
                  
                 
                 
                 
                Basic earnings per share denominator  10,732  10,769  10,761 
                  
                 
                 
                 
                Diluted earnings per share denominator (in thousands):          
                 Average common shares outstanding during the period  10,784  10,780  10,774 
                 Average unvested Restricted Shares(2)  (46)   (13)
                 Average outstanding dilutive options to acquire common shares(3)  13  23  33 
                  
                 
                 
                 
                Diluted earnings per share denominator  10,751  10,803  10,794 
                  
                 
                 
                 
                Basic earnings per share (in dollars):          
                Income before extraordinary item $37.96 $60.52 $26.96 
                 Extraordinary item—excess of fair value of acquired net assets over cost    1.99   
                  
                 
                 
                 
                Net income $37.96  62.51 $26.96 
                  
                 
                 
                 
                Diluted earnings per share (in dollars):          
                Income before extraordinary item $37.89 $60.33 $26.56 
                 Extraordinary item—excess of fair value of acquired net assets over cost    1.99   
                  
                 
                 
                 
                Net income $37.89 $62.32 $26.56 
                  
                 
                 
                 

                (1)
                The diluted earnings per share numerator for the year ended December 31, 2005 has been adjusted to exclude an income tax returnsstatement credit associated with outstanding options to acquire common shares (see footnote 3 below).

                (2)
                Restricted Shares outstanding vest either upon a stated date or upon the occurrence of a specified event. See Note 12. In accordance with FAS No. 123(R), the Company’s U.S. subsidiariesdiluted earnings per share denominator is reduced by the number of Restricted Shares that represent the unamortized compensation cost at December 31, 2007. Such amounts are routinely audited by taxing authorities. For federal income tax purposes, years 2003 throughcomputed using the treasury stock method.

                (3)
                The diluted earnings per share denominator for the year ended December 31, 2007 includes 18,720 common shares issuable upon exercise of incentive options at an average strike price of $162.90 per common share. The diluted earnings per share denominator for the year ended December 31, 2006 includes 32,596 common shares at an average strike price of $154.05 per common share. The diluted earnings per share denominator for the year ended December 31, 2005 are currently under examination. All years prior to 2003 have been settled. During 2006, White Mountains recognized $26.3 million in tax benefits related to the settlementincludes 42,910 common shares at an average strike price of U.S. Federal income tax audits for years prior to 2003. In management’s opinion, adequate tax liabilities have been established for all open tax years. These liabilities could be revised$145.33 per common share. The non-qualified options were not included in the future if estimates of White Mountains’ ultimate liability changes.

                diluted earnings per share denominator as their inclusion would be anti-dilutive for the periods presented. (See Note 12).

                NOTE 8.11. Retirement and Postretirement Plans

                OneBeacon sponsors a qualified non-contributory defined benefit pension plan and a non-qualified, non-contributory, defined benefit pension plan covering substantially all of OneBeacon’s employees who were employed as of December 31, 2001 and who remain actively employed. OneBeacon’semployed with OneBeacon. Current plans include a OneBeacon qualified pension plan, the "Qualified Plan" and a OneBeacon non-qualified pension plan, the "Non-qualified Plan" (collectively the "Plans"). OneBeacon's pension plans were curtailed in the fourth quarter of 2002 so that they2002. The Plans no longer addedadd new participants or increasedincrease benefits for existing participants. Non-vested plan participants continue to vest during their employment with OneBeacon.OneBeacon, which effectively causes the projected benefit obligation to equal the accumulated benefit obligation.

                        The benefits for the plansPlans are based primarily on years of service and employees’employees' pay through December 31, 2002. Participants generally vest after five years of continuous service. OneBeacon’sOneBeacon's funding policy is consistent with the funding requirements of federalFederal laws and regulations. OneBeacon uses a December 31st measurement date for its defined benefit pension plans.

                In addition to the defined benefit pension plans, OneBeacon had a contributory postretirement benefit plan which provided medical and life insurance benefits to pensioners and survivors. OneBeacon's funding policy was to make contributions to the plan that were necessary to cover its current obligations.

                In the fourth quarter of 2005, OneBeacon settled its retiree medicalpostretirement benefit obligation through the funding of an independent trust to provide benefits for covered participants in the amount of $31.2 million. Upon completing the funding of the independent trust, OneBeacon terminated the postretirement benefit plan. OneBeacon’sOneBeacon's settlement of its postretirement benefit obligation and termination of the plan resulted in recognition of a $53.6 million gain. As a result of settling and terminating the postretirement benefit plan, disclosure of obligations and funded status as well as various assumptions is not applicable.

                        On July 11, 2007, the Company settled approximately 80% of the Qualified Plan liabilities through the purchase of two group annuity contracts for $398.5 million from Transamerica Life Insurance Company and Hartford Life Insurance Company ("Hartford Life"). In accordance with SFAS No. 88 "Employers' Accounting for Settlements and Curtailments of Defined Benefit Pension Plans and for Termination Benefits", the Qualified Plan's obligations were re-measured in connection with this settlement. As a result of the partial settlement and re-measurement, the Company recognized a gain of $25.6 million through pre-tax income ($6.3 million as a reduction to loss and LAE, allocated to claims department employees, and $19.3 million as a reduction to other underwriting expenses) and a pre-tax loss of $2.5 million through other comprehensive income in the third quarter of 2007. The remaining Qualified Plan liabilities are primarily attributable to Qualified Plan participants who remain actively employed by OneBeacon.

                The following tables set forth the obligations and funded status, assumptions, plan assets and cash flows associated with the various pension plan and postretirement benefits at December 31, 20062007 and 2005:2006:

                Obligations and Funded Status

                 

                 

                Pension Benefits

                 

                Other Postretirement
                Benefits

                 

                Millions

                 

                2006

                 

                2005

                 

                2006

                 

                2005

                 

                Change in projected benefit obligation:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Projected benefit obligation at beginning of year

                 

                $

                507.3

                 

                $

                525.5

                 

                $

                 

                $

                50.9

                 

                Service cost

                 

                2.6

                 

                1.5

                 

                 

                .1

                 

                Interest cost

                 

                27.7

                 

                29.7

                 

                 

                2.8

                 

                Curtailment

                 

                 

                (4.9

                )

                 

                (31.2

                )

                Plan amendments

                 

                1.6

                 

                2.8

                 

                 

                 

                Assumption changes

                 

                36.9

                 

                24.4

                 

                 

                 

                Actuarial (gain) loss

                 

                3.3

                 

                7.6

                 

                 

                (14.0

                )

                Benefits and expenses paid, net of participant contributions

                 

                (42.2

                )

                (50.6

                )

                 

                (8.1

                )

                Benefits paid directly by OneBeacon

                 

                (3.1

                )

                (3.0

                )

                 

                 

                 

                 

                Effect of disposition (1)

                 

                 

                (25.7

                )

                 

                (.5

                )

                Projected benefit obligation at end of year

                 

                $

                534.1

                 

                $

                507.3

                 

                $

                 

                $

                 

                Change in plan assets:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Fair value of plan assets at beginning of year

                 

                $

                488.0

                 

                $

                492.5

                 

                $

                 

                $

                 

                Actual return on plan assets

                 

                83.4

                 

                68.9

                 

                 

                 

                Employer contributions

                 

                 

                3.0

                 

                 

                39.3

                 

                Benefits and expenses paid, net of participant contributions

                 

                (40.6

                )

                (50.8

                )

                 

                (39.3

                )

                Effect of disposition (1)

                 

                 

                (22.8

                )

                 

                 

                Special termination benefits

                 

                (1.6

                )

                (2.8

                )

                 

                 

                 

                 

                Other adjustments

                 

                3.5

                 

                 

                 

                 

                Fair value of plan assets at end of year

                 

                $

                532.7

                 

                $

                488.0

                 

                $

                 

                $

                 

                Funded status

                 

                $

                (1.4

                )

                $

                (19.3

                )

                $

                 

                $

                 


                 
                 Pension Benefits
                 
                Millions

                 
                 2007
                 2006
                 
                Change in projected benefit obligation:       
                Projected benefit obligation at beginning of year $534.1 $507.3 
                Service cost  2.1  2.6 
                Interest cost  16.7  27.7 
                Settlement gain  (398.5)  
                Special termination benefit cost  1.8  1.6 
                Assumption changes  (4.8) 36.9 
                Actuarial loss  1.6  3.3 
                Benefits and expenses paid, net of participant contributions  (28.4) (42.2)
                Benefits paid directly by OneBeacon  (3.0) (3.1)
                  
                 
                 
                Projected benefit obligation at end of year $121.6 $534.1 
                  
                 
                 
                Change in plan assets:       
                Fair value of plan assets at beginning of year $532.7 $488.0 
                Actual return on plan assets  39.7  83.4 
                Benefits and expenses paid, net of participant contributions  (28.4) (42.2)
                Settlement gain  (398.5)  
                Other adjustments    3.5 
                  
                 
                 
                Fair value of plan assets at end of year $145.5 $532.7 
                  
                 
                 
                Funded status at end of year $23.9 $(1.4)
                  
                 
                 

                (1)        The effectfunded status of disposition includes the sale of NFU to a third party on September 30, 2005.


                Atconsolidated pension plans at December 31, 2006,2007 was $23.9 million, which represents an over-funding of $51.8 million related to the qualified pension plan was overfunded by $27.4Qualified Plan and an under-funding of $27.9 million andrelated to the non-qualified plan was underfunded by $28.8 million.Non-qualified Plan. The non-qualified planNon-qualified Plan, which is unfunded, does not hold any assets. OneBeacon has established $20.1set aside $18.2 million in irrevocable rabbi trusts for the benefit of non-qualified pension plan participants that are recorded in other assets at December 31, 2006. TheNon-qualified Plan participants. In accordance with GAAP, the assets held in the rabbi trusts are not reflected in the funded status of the consolidated pension plans as presented.

                Amounts recognized in the financial statements consist of:

                 

                 

                Pension Benefits

                 

                Other
                Postretirement Benefits

                 

                Millions

                 

                2006

                 

                2005

                 

                2006

                 

                2005

                 

                Prepaid benefit cost

                 

                $

                27.4

                 

                $

                14.9

                 

                $

                 

                $

                 

                Accrued benefit cost

                 

                (28.8

                )

                (29.6

                )

                 

                 

                Accumulated other comprehensive income (pre-tax)

                 

                 

                5.2

                 

                 

                 

                Net amount accrued as a liability

                 

                $

                (1.4

                )

                $

                (9.5

                )

                $

                 

                $

                 

                 
                 Pension Benefits
                 
                Millions

                 
                 2007
                 2006
                 
                Prepaid benefit cost recorded in other assets $51.8 $27.4 
                Accrued benefit cost recorded in other liabilities  (27.9) (28.8)
                  
                 
                 
                Net amount accrued in the financial statements $23.9 $(1.4)
                  
                 
                 

                        

                Because OneBeacon’s defined benefit pension plansthe Plans have been curtailed, the accumulated benefit obligation is equal to the projected benefit obligation for both the qualified and non-qualified defined benefit pension plans.obligation. The accumulated benefit obligation and projected benefit obligation for the qualified defined benefit planQualified Plan at December 31, 2007 and 2006 and 2005 was $505.3$93.6 million and $477.6$505.3 million. The accumulated benefit obligation and projected benefit obligation for the non-qualified defined benefit planNon-qualified Plan at December 31, 2007 and 2006 and 2005 was $28.8$27.9 million and $29.6$28.8 million. The fair value of the plan assets for the qualified defined benefit planQualified Plan at December 31, 2007 and 2006 and 2005 was $532.7$145.5 million and $488.0$532.7 million. The non-qualified defined benefit planNon-qualified Plan did not hold any assets at December 31, 20062007 and 2005.2006.

                At December 31, 2006, White Mountains adopted FAS 158 and accordingly recognized the funded status of OneBeacon’sOneBeacon's defined benefit plans upon adoption. The following summarizes the incremental effect of adoption on individual line items in the statement of financial position:

                Millions

                 

                Before
                Adoption of
                FAS 158

                 

                Adjustments

                 

                After Adoption
                of FAS 158

                 

                 Before Adoption of FAS 158
                 Adjustments
                 After Adoption of FAS 158

                Prepaid benefit cost recorded in other assets

                 

                $

                18.6

                 

                $

                8.8

                 

                $

                27.4

                 

                 $18.6 $8.8 $27.4

                Accrued benefit cost recorded in other liabilities

                 

                28.8

                 

                 

                28.8

                 

                 28.8  28.8

                Deferred federal income taxes

                 

                314.6

                 

                (3.1

                )

                311.5

                 

                 314.6 (3.1) 311.5

                Net effect of adoption before adjustment for minority interest

                 

                n/a

                 

                5.7

                 

                n/a

                 

                 n/a 5.7 n/a

                Minority interest

                 

                604.8

                 

                (1.6

                )

                603.2

                 

                 604.8 (1.6) 603.2

                Accumulated other comprehensive income

                 

                227.7

                 

                4.1

                 

                231.8

                 

                 227.7 4.1 231.8

                Total shareholders’ equity

                 

                $

                4,451.2

                 

                $

                4.1

                 

                $

                4,455.3

                 

                 
                 
                 
                Total shareholders' equity $4,451.2 $4.1 $4,455.3
                 
                 
                 

                        


                The components of net periodic benefit costs for the years ended December 31, 2007, 2006 2005 and 20042005 were as follows:

                 

                Pension Benefits

                 

                Other Postretirement Benefits

                 

                 Pension Benefits
                 Other Postretirement Benefits
                 
                Millions

                 

                 

                2006

                 

                2005

                 

                2004

                 

                2006

                 

                2005

                 

                2004

                 

                2007
                 2006
                 2005
                 2007
                 2006
                 2005
                 

                Service cost

                 

                $

                2.6

                 

                $

                1.5

                 

                $

                1.9

                 

                $

                 

                $

                .1

                 

                $

                .1

                 

                 $2.1 $2.6 $1.1 $�� $ $.1 

                Interest cost

                 

                27.7

                 

                29.7

                 

                30.7

                 

                 

                2.8

                 

                3.2

                 

                 16.7  27.7 28.5   2.8 

                Expected return on plan assets

                 

                (30.6

                )

                (31.7

                )

                (32.2

                )

                 

                 

                 

                 (17.7) (30.6) (30.6)    

                Amortization of prior service benefit

                 

                 

                 

                 

                 

                (4.2

                )

                (4.1

                )

                       (4.1)

                Amortization of unrecognized loss

                 

                .3

                 

                 

                 

                 

                 

                .1

                 

                 .3  .3 .1    

                Recognized actuarial loss

                 

                 

                 

                 

                 

                 

                 

                Net periodic pension cost before settlements, curtailments and special termination benefits

                 

                 

                (.5

                )

                .4

                 

                 

                (1.3

                )

                (.7

                )

                 
                 
                 
                 
                 
                 
                 
                Net periodic pension cost (income) before settlements, curtailments and special termination benefits 1.4   (.9)   (1.2)

                Settlement gain

                 

                 

                 

                 

                 

                 

                 

                 (25.6)      

                Curtailment gain (1)

                 

                 

                (1.6

                )

                 

                 

                 

                 

                Special termination benefits expense (2)(1)

                 

                1.6

                 

                2.8

                 

                2.9

                 

                 

                 

                 

                 1.8  1.6 2.8    

                Effect of disposition

                 

                 

                (3.6

                )

                 

                 

                (.6

                )

                 

                Total settlements, curtailments, special termination benefits, and effect of disposition

                 

                 

                (2.4

                )

                2.9

                 

                 

                (.6

                )

                 

                 
                 
                 
                 
                 
                 
                 

                Total net periodic benefit cost (income)

                 

                $

                1.6

                 

                $

                (2.9

                )

                $

                3.3

                 

                $

                 

                $

                (1.9

                )

                $

                (.7

                )

                 $(22.4)$1.6 $(1.9)$ $ $(1.2)
                 
                 
                 
                 
                 
                 
                 

                (1)
                Special termination benefits are additional payments made from the pension plan when a vested participant terminates employment due to a reduction in force.


                (1)

                During June 2005, NFU froze its pension plan and recognized a $1.6 million curtailment gain. NFU was sold to a third party on September 30, 2005.

                (2)

                Special termination benefits are additional payments made from the pension plan when a vested participant terminates employment due to a reduction in force.

                Assumptions

                The weighted average discount rate used to determine benefit obligations at December 31, 2007 and 2006 and 2005 was:

                 

                 

                Pension Benefits

                 

                Other Postretirement
                Benefits

                 

                 

                 

                2006

                 

                2005

                 

                2006

                 

                2005

                 

                Discount rate

                 

                5.027

                %

                5.500

                %

                 

                 

                 
                 Pension Benefits
                 
                 
                 2007
                 2006
                 
                Discount rate 5.750%5.027%

                        

                The weighted average assumptions used to determine net periodic benefit cost for the years ended December 31, 2007 and 2006 2005 and 2004 were:

                 

                 

                Pension Benefits

                 

                Other Postretirement
                Benefits

                 

                 

                 

                2006

                 

                2005

                 

                2004

                 

                2006

                 

                2005 (1)

                 

                2004 (2)

                 

                Discount rate

                 

                5.500

                %

                5.875

                %

                6.000

                %

                 

                 

                6.125

                %

                Expected long-term rate of return on plan assets

                 

                6.500

                %

                6.750

                %

                7.000

                %

                 

                 

                 

                Rate of compensation increase (3)

                 

                 

                 

                .190

                %

                 

                 

                .034

                %


                (1)

                The discount rate in effect from January 1 through June 30, 2005 was 6.25%. The retiree medical plan was re-measured on June 30 due to plan changes that became effective on July 1. The plan formally terminated December 31, 2005.

                (2)

                The discount rate in effect from January 1 through June 30, 2004 was 6.0%. The retiree medical plan was re-measured on June 30 due to plan changes that became effective on July 1. The discount rate was raised to 6.25% for the re-measurement and remained in effect through December 31, 2004.

                (3)

                The rate of compensation increase affects only the NFU qualified pension plan for 2004. OneBeacon sold NFU to a third party on September 30, 2005. Both the OneBeacon qualified and non-qualified pensions plans are frozen.


                 
                 Pension Benefits
                 
                 
                 2007
                 2006
                 
                Discount rate 5.096%5.500%
                Expected long-term rate of return on plan assets 5.400%6.500%

                OneBeacon’s        OneBeacon's discount rate assumptions used to account for its qualifiedthe Qualified and non-qualified pension plansNon-qualified Plans reflect the rates at which the benefit obligations could be effectively settled. TheseFor 2006, these rates were determined based on consideration of published yields for high quality long-term corporate bonds and U.S. Treasuries, as well as settlement rates fromquotes on insurance company annuity contracts. For 2007, in addition to consideration of published yields for high quality long-term corporate bonds, U.S. Treasuries and quotes on insurance company annuity contracts, consideration was given to a cash flow matching analysis utilizing the Citigroup Pension Discount Curve and Liability Index.

                OneBeacon performed an analysis of expected long-term rates of return based on the allocation of its pension plan assets at both December 31, 20062007 and 20052006 to develop expected rates of return for each significant asset class or economic indicator. A range of returns was developed based both on forecasts and on broad-marketbroad market historical benchmarks for expected return, correlation, and volatility for each asset class. Although the expected investment return assumption is long-term in nature, the range of reasonable returns had dropped over the past few years as a consequence of lower inflation and lower bond yields.

                Plan Assets

                OneBeacon’s        OneBeacon's pension plans weighted-average asset allocations at December 31, 20062007 and 2005,2006, by asset category were as follows:

                 

                Plan Assets
                at December 31,

                 

                 Plan Assets at December 31,

                Asset Category

                 

                2006

                 

                2005

                 

                Equity securities

                 

                42

                %

                38

                %

                Debt securities

                 

                32

                %

                31

                %

                Asset Category

                2007
                 2006
                 19% 32%
                Common equity securities 24% 42%

                Convertible securities

                 

                20

                %

                22

                %

                 50% 20%

                Cash and cash equivalents

                 

                6

                %

                9

                %

                Cash and short-term investments 7% 6%
                 
                 

                Total

                 

                100

                %

                100

                %

                 100% 100%
                 
                 

                        

                The majority of the plans’plans' assets are invested by WM Advisors, a subsidiary of White Mountains. The investment policy places an emphasis on preserving invested assets through a diversified portfolio of high-quality income producing investments and equity investments.

                The investment management process integrates the risks and returns available in the investment arena with the risks and returns available to the plan in establishing the proper allocation of invested assets. The asset classes include fixed income, equity, convertible securities, and cash and cash equivalents. The factors examined in establishing the appropriate investment mix include: the outlook for risk and return in the various investment markets and sectors, and the long term need for capital growth.

                Cash Flows

                OneBeacon does not expect to make a contribution to its pension plans in 2007.2008. OneBeacon expects to pay $2.8 million of benefit payments in 20072008 related to the non-qualified pension plan, for which OneBeacon has established assets held in rabbi trusts.

                The following benefit payments, which reflect expected future service, as appropriate, are expected to be paid:

                Millions

                 

                Expected Benefit
                Payments

                 

                 Expected Benefit Payments

                2007

                 

                $

                37.7

                 

                2008

                 

                37.1

                 

                 $5.3

                2009

                 

                36.3

                 

                 5.8

                2010

                 

                35.9

                 

                 6.2

                2011

                 

                35.5

                 

                 6.7

                2012-2016

                 

                173.9

                 

                2012 7.1
                2013–2017 $41.2
                 

                Other Benefit Plans

                Certain of the Company’s subsidiaries sponsor various        OneBeacon sponsors an employee savings plansplan (defined contribution plans)plan) covering the majority of employees. The contributory plans provideplan provides qualifying employees with matching contributions of up to six percent of qualifying employees’ salary (subject to federalFederal limits on allowable contributions in a given year). Total expense for the plansplan was $3.7 million, $4.9 million and $4.7 million in 2007, 2006 and $5.8 million in 2006, 2005, respectively. Following the curtailment of the OneBeacon Pension Plan and 2004.

                effective January 1, 2003, OneBeacon replaced its defined benefit pension plan with an employee stock ownership plan. OneBeacon had a post-employment benefit liability of $9.6$9.0 million and $12.2$9.6 million related to its long-term disability plan at December 31, 20062007 and 2005.2006.


                NOTE 9.12. Employee Share-Based Incentive Compensation Plans

                White Mountains’Mountains' share-based incentive compensation plans are designed with one goal in mind, maximization of shareholder value over long periods of time. White Mountains believes that this goal is best pursued by utilisingutilizing a pay-for-performance program for its key employees that closely aligns the financial interests of management with those of its shareholders. White Mountains accomplishes this by emphasizing highly variable long-term compensation that is contingent on performance over a number of years rather than entitlements (such as base salary, pensions and employee benefits). To that end, the Company’sCompany's Compensation Committee has established base salaries and target annual bonuses for key employees that tend to be lower than those paid by other property and casualty (re)insurers, while granting the bulk of target compensation as long-term, share-based incentive compensation.

                White Mountains expenses all its share-based compensation. As a result, White Mountains’Mountains' calculation of its owners’owners' returns includes the expense of all outstanding share-based compensation awards. See Note 1 for a summary of White Mountains’Mountains' accounting policies regarding its share-based compensation plans.

                Incentive Compensation Plans

                White Mountains’Mountains' Long-Term Incentive Plan (the “Incentive Plan”"Incentive Plan") provides for granting various types of share-based and non share-based incentive awards to key employees of the Company and certain of its subsidiaries. The Incentive Plan was adopted by the Board, was approved by the Company’sCompany's sole shareholder in 1985 and was subsequently amended by its shareholders in 1995, 2001, 2003 and 2005. Share-based incentive awards that may be granted under the plan include performance shares, Restricted Shares, Incentive Options and non-qualified stock options (“Non-qualified Stock Options ("Non-Qualified Options”Options"). Performance shares are conditional grants of a specified maximum number of common shares or an equivalent amount of cash. In general, grants are earned,awards vest, subject to the attainment of pre-specified performance goals, at the end of a three-year period and are valued based on the market value of common shares at the time awards are paid. Compensation expense is recognized on a pro rata basis over the vesting period of the awards.

                The OneBeacon Long-Term Incentive Plan (the “OneBeacon"OneBeacon Incentive Plan”Plan") provides for granting to key employees of OneBeacon Ltd., and certain of its subsidiaries, various types of share-based incentive awards, including performance shares, Restricted Shares, Incentive Options and Non-Qualified Options. In February 2007, all of the outstanding performance shares granted under the Incentive Plan that were held by OneBeacon employees were replaced with an equivalent value of performance shares from the OneBeacon Incentive Plan whose value is based upon the market price of an underlying OneBeacon Ltd. common share ("OB Performance Shares").

                Certain of White Mountains’Mountains' subsidiary incentive plans, consisting of the OneBeacon Phantom White Mountains Share Plan, the White Mountains Re Performance Plan, the Folksamerica Performance Plan and the Esurance Performance Plan, provide for granting phantom White Mountains performance shares (the “Phantom"Phantom Share Plans”Plans") to certain key employees of OneBeacon, White Mountains Re, Folksamerica and Esurance. The performance goals for full payment of performance shares issued under these plans are identical to those of the Incentive Plan. Performance shares earned under the Phantom Share Plans are payable solely in cash or by deferral into certain non-qualified compensation plans of White Mountains.

                In addition, the Company offers certain types of share-based compensation under qualified retirement plans. The defined contribution plans of OneBeacon, Folksamerica and Esurance (the “401(k) Plans”"401(k) Plans") offer its participants the ability to invest their balances in several different investment options, including the Company’sCompany's common shares. OneBeacon’sOneBeacon's employee stock ownership plan (“ESOP”("ESOP") is a OneBeacon-funded benefit plan that provides all of its participants with an annual base contribution in common shares equal to 3% of their salary, up to the applicable Social Security wage base (or $94,200$97,500 with respect to 2006)2007). Additionally, those participants not otherwise eligible to receive certain other OneBeacon benefits can earn a variable contribution up to an additional 6% of their salary, up to the applicable Social Security wage base, contingent upon OneBeacon’sOneBeacon's performance.


                Performance Shares

                        White Mountains' share-based compensation expense consists primarily of performance share expense. Performance shares are designed to reward company-wide performance as theirperformance. The level of payout which can beranges from 0xzero to 2xtwo times the number of shares initially granted, is dependent upondepending on the Company’sCompany's financial performance. Performance shares become payable at the conclusion of a performance cycle (typically three years) if pre-defined financial targets are met.


                The Company’s principal performance measure used for determining performance sharesshare payouts is its after-tax corporate growth in the Company's intrinsic business value per share. In measuringThe Compensation Committee historically has considered the growth in intrinsic business value per share for many yearsto be based on the Company’s Compensation Committee has looked to growth inof economic value per share (which is weighted 50%), growth in tangible book value per share (which is weighted 25%) and growth in market value per share (which is weighted 25%), in each case includingall inclusive of dividends. Economic value is calculated by starting withadjusting the GAAP book value then adjusting White Mountains’per share for differences between the GAAP carrying values of certain assets and liabilities toand the Company's estimate of their underlying economic valuevalues (such as throughfor the discounting oftime value discount in loss reserves).

                White Mountains’ share-based compensation expense consists primarily of performance share expense.        The following summarizes performance share activity for the years ended December 31, 2007, 2006 2005 and 20042005 for performance shares granted under the Incentive Plan and performance shares and phantom performance shares granted under subsidiary plans (“Phantom Share Plans”):Plans:

                 

                Year Ended December 31,

                 

                 

                 

                2006

                 

                2005

                 

                2004

                 

                 

                 

                Target
                Performance

                 

                 

                 

                Target
                Performance

                 

                 

                 

                Target
                Performance

                 

                 

                 

                Millions, except share amounts

                 

                Shares
                Outstanding

                 

                Accrued
                Expense

                 

                Shares
                Outstanding

                 

                Accured
                Expense

                 

                Shares
                Outstanding

                 

                Accrued
                Expense

                 

                Beginning of period

                 

                183,031

                 

                $

                100.5

                 

                368,646

                 

                $

                340.0

                 

                462,187

                 

                $

                257.7

                 

                Payments and deferrals

                 

                (64,100

                )

                (57.0

                )(1)

                (212,611

                )

                (234.5

                )(2)

                (167,445

                )

                (132.6

                )(3)

                Forfeitures and cancellations

                 

                (4,753

                )

                (2.7

                )

                (57,621

                )

                (27.1

                )

                (1,346

                )

                (1.1

                )

                New Awards

                 

                71,185

                 

                 

                84,617

                 

                 

                75,250

                 

                 

                Expense Recognized

                 

                 

                61.6

                 

                 

                22.1

                 

                 

                216.0

                 

                Ending December 31,

                 

                185,363

                 

                $

                102.4

                 

                183,031

                 

                $

                100.5

                 

                386,646

                 

                $

                340.0

                 

                 
                 Year Ended December 31,
                 
                 
                 2007
                 2006
                 2005
                 
                Millions, except share amounts

                 Target Performance Shares Outstanding
                 Accrued Expense
                 Target Performance Shares Outstanding
                 Accrued Expense
                 Target Performance Shares Outstanding
                 Accrued Expense
                 
                Beginning of period 185,363 $102.4 183,031 $100.5 368,646 $340.0 
                 Payments and deferrals (63,300) (56.0)(1)(64,100) (57.0)(2)(212,611) (234.5)(3)
                 New awards 55,173   71,185   84,617   
                 Forfeitures and cancellations (17,684) (4.6)(4,753) (2.7)(57,621) (27.1)
                 Transfers out(4) (12,810) (4.4)      
                 Expense recognized   9.9   61.6   22.1 
                  
                 
                 
                 
                 
                 
                 
                Ending December 31, 146,742 $47.3 185,363 $102.4 183,031 $100.5 
                  
                 
                 
                 
                 
                 
                 


                (1)
                Performance share payments in 2007 for the 2004-2006 performance cycle range from 145% to 186% of target.

                (2)
                Performance share payments in 2006 for the 2003-2005 performance cycle ranged from 142% to 181% of target.

                (2)

                (3)
                Performance share payments in 2005 for the 2002-2004 performance cycle ranged from 160% to 180% of target.

                (3)          Performance share payments in 2004 for

                (4)
                In February 2007, the 2001-2003WTM performance cycle ranged from 93% to 200%shares of target.

                OneBeacon employees were replaced with an equivalent value of OB performance shares issued under the OneBeacon Long-Term Incentive Plan

                If 100% of the outstanding performance shares had been vested on December 31, 2006,2007, the total additional compensation cost to be recognized would have been $59.2$30.4 million, based on current accrual factors (common share price and payout assumptions).

                All performance shares earned for the 2004-2006, 2003-2005, 2002-2004 and 2001-20032002-2004 performance cycles were settled in cash or by deferral into certain non-qualified deferred compensation plans of the Company or its subsidiaries.


                  Performance shares granted under the Incentive Plan

                The following summarizes performance shares outstanding and accrued performance share expense for performance shares awarded under the Incentive Plan at December 31, 20062007 for each performance cycle:

                Millions, except share amounts

                 

                Target
                Performance
                Shares
                Outstanding

                 

                Accrued
                Expense

                 

                Performance cycle:

                 

                 

                 

                 

                 

                2004 - 2006

                 

                58,100

                 

                $

                53.7

                 

                2005 - 2007

                 

                47,770

                 

                21.1

                 

                2006 - 2008

                 

                62,915

                 

                20.1

                 

                Sub-total

                 

                168,785

                 

                $

                94.9

                 

                Assumed forfeitures

                 

                (4,220

                )

                (2.4

                )

                Total at December 31, 2006

                 

                164,565

                 

                $

                92.5

                 

                Millions, except share amounts

                 Target Performance Shares Outstanding
                 Accrued Expense
                 
                Performance cycle:      
                 2005-2007 40,530 $12.5 
                 2006-2008 49,918  24.4 
                 2007-2009 46,811  8.4 
                  
                 
                 
                 Sub-total 137,259  45.3 
                  Assumed forfeitures (3,432) (1.1)
                  
                 
                 
                Total at December 31, 2007 133,827 $44.2 
                  
                 
                 

                        

                The targeted performance goal for full payment of outstanding performance shares granted under the Incentive Plan to non-investment personnel is a 13% growth in intrinsic business value per share. Growth of 6% or less would result in a payout of 0% and growth of 20% or more would result in a payout of 200%.


                For investment personnel, the targeted performance goal for full payment of outstanding performance shares granted under the Incentive Plan is based in part on growth in intrinsic business value per share (as described above) and in part on achieving a total return on invested assets as measured against metrics based on United States treasury note and/or industry benchmark returns.

                  Phantom performance sharesPerformance Shares granted under Phantom Share Plans

                The following summarizes performance shares outstanding and accrued phantom performance share
                expense for awards made under the Phantom Share Plans at December 31, 20062007 for each performance cycle:

                 

                Target
                Performance

                 

                 

                 

                 

                 

                Shares

                 

                Accrued

                 

                Millions, except share amounts

                 

                Outstanding

                 

                Expense

                 

                Performance cycle:

                 

                 

                 

                 

                 

                2004 - 2006

                 

                5,200

                 

                $

                4.5

                 

                2005 - 2007

                 

                7,861

                 

                3.1

                 

                2006 - 2008

                 

                8,270

                 

                2.6

                 

                Sub-total

                 

                21,331

                 

                $

                10.2

                 

                Assumed forfeitures

                 

                (533

                )

                (0.3

                )

                Total at December 31, 2006

                 

                20,798

                 

                $

                9.9

                 

                Millions, except share amounts

                 Target Performance Shares Outstanding
                 Accrued Expense
                 
                Performance cycle:      
                 2005-2007 3,567 $.9 
                 2006-2008 2,139  .9 
                 2007-2009 7,540  1.4 
                  
                 
                 
                 Sub-total 13,246  3.2 
                  Assumed forfeitures (331) (.1)
                  
                 
                 
                Total at December 31, 2007 12,915 $3.1 
                  
                 
                 

                        

                The targeted performance goal for full payment of outstanding performance shares granted under the Phantom Share Plans is a 13% growth in intrinsic business value per share. Growth of 6% or less would result in a payout of 0% and growth of 20% or more would result in a payout of 200%.


                Restricted Shares

                At December 31, 2007, 2006 2005 and 2004,2005, the Company had 54,000, 10,000 13,000 and 15,00013,000 unvested Restricted Shares outstanding under the WTM Incentive Plan, respectively, which were granted to certain key employees during 2004.Plan. The following outlines the unrecognized compensation cost associated with the outstanding Restricted Share awards under the WTM Incentive Plan for the years ended December 31, 2007, 2006 2005 and 2004:2005:

                 

                 

                Year Ended December 31,

                 

                 

                 

                2006

                 

                2005

                 

                2004

                 

                 

                 

                Restricted 

                 

                Unamortized
                Grant Date
                Fair

                 

                Restricted 

                 

                Unamortized
                Grant Date
                Fair

                 

                Restricted 

                 

                Unamortized
                Grant Date
                Fair

                 

                Millions, except share amounts

                 

                Shares

                 

                Value

                 

                Shares

                 

                Value

                 

                Shares

                 

                Value

                 

                Non-vested, beginning of year

                 

                13,000

                 

                $

                1.9

                 

                15,000

                 

                $

                4.2

                 

                6,000

                 

                $

                1.5

                 

                Granted

                 

                 

                 

                 

                 

                10,000

                 

                4.7

                 

                Vested

                 

                (3,000

                )

                 

                (1,000

                )

                 

                (1,000

                )

                 

                Forfeited

                 

                 

                 

                (1,000

                )

                (0.3

                )

                 

                 

                Expense recognized

                 

                 

                (1.6

                )

                 

                (2.0

                )

                 

                (2.0

                )

                Non-vested at end of year

                 

                10,000

                 

                $

                .3

                 

                13,000

                 

                $

                1.9

                 

                15,000

                 

                $

                4.2

                 

                 
                 Year Ended December 31,
                 
                 
                 2007
                 2006
                 2005
                 
                Millions, except share amounts

                 Restricted Shares
                 Unamortized Grant Date Fair Value
                 Restricted Shares
                 Unamortized Grant Date Fair Value
                 Restricted Shares
                 Unamortized Grant Date Fair Value
                 
                Non-vested, beginning of year 10,000 $.3 13,000 $1.9 15,000 $4.2 
                 Granted 54,000  31.0       
                 Vested (10,000)  (3,000)  (1,000)  
                 Forfeited       (1,000) (0.3)
                 Expense recognized   (4.6)  (1.6)  (2.0)
                  
                 
                 
                 
                 
                 
                 
                Non-vested at end of year 54,000 $26.7 10,000 $.3 13,000 $1.9 
                  
                 
                 
                 
                 
                 
                 

                        

                The 10,000During the first quarter of 2007, White Mountains made the following grants of Restricted Shares outstanding at December 31, 2006 are scheduled to the Company's Chairman and CEO: (1) 35,000 Restricted Shares that vest in equal annual installments over five years, and (2) 15,000 Restricted Shares that vest in the event of a change in control of the Company before January 20, 2012. During the first quarter of 2007, White Mountains also awarded 4,000 Restricted Shares to other employees that cliff vest onin February 23, 2007. The unrecognized compensation cost of $.3 million at December 31, 2006 is expected to be recognized over the remaining vesting period. Vesting is dependent2010 based on continuous service by the employee throughout the award period. Of the unrecognized compensation cost at December 31, 2007, $18.1 million is expected to be recognized ratably over the remaining vesting periods and $8.6 million is expected to be recognized in the event of a change in control before January 20, 2012. Upon vesting, all restrictions initially placed upon the common shares lapse.

                Upon adopting FAS 123R, on        On January 1, 2006, White Mountains recorded an adjustment of $1.9 million to reclassify unearned compensation in common shareholders’shareholders' equity relating to its outstanding Restricted Shares to opening paid-in surplus to reflect the cumulative effect of adoption.adoption of FAS 123R.


                Stock Options

                  Non-Qualified Options

                        In January 2007, the Company issued 200,000 seven-year Non-Qualified Options to the Company's Chairman and CEO that vest in equal annual installments over five years and that have an initial exercise price of $650 per common share that escalates each year by 5% less the annual regular dividend rate (the "Escalator"). The fair value of the Non-Qualified Options at the grant date was estimated using a closed-form option model using an expected volatility assumption of 29.7%, a risk-free interest rate assumption of 1.1% (or 4.7% plus the expected annual regular dividend rate at the date of grant less the Escalator), a forfeiture assumption of 0%, an expected dividend rate assumption of 1.4% and a term assumption of seven years. The fair value of the Non-Qualified Options was $27.2 million at the grant date and will be recognized ratably over the five year vesting period. The Company recognized $5.1 million of expense for the year ended December 31, 2007 associated with its Non-Qualified Options.

                  Incentive Options

                At December 31, 2007, 2006 2005 and 2004,2005, the Company had 9,900, 29,550 34,280 and 46,53034,280 Incentive Options outstanding which were granted to certain key employees on February 28, 2000 (the grant date) under the WTM Incentive Plan. The 81,000 Incentive Options originally granted were issued at an exercise price equal to the market price of the Company’sCompany's underlying common shares on February 27, 2000. The exercise price escalates by 6% per annum over the life of the Incentive Options. The Incentive Options vest ratably over a ten-year service period. Upon the adoption of FAS 123R, the grant date fair value of the awards as originally disclosed for FAS 123, adjusted for estimated future forfeitures, became the basis for recognition of compensation expense for the Incentive Options. The fair value of each Incentive Option award at the grant date was estimated using a closed-form option model using an expected volatility assumption of 18.5%, a risk-free interest rate assumption of 6.4% and an expected term of ten years.


                The following summarizes the Company’sCompany's Incentive Option activity for the years ended December 31, 2007, 2006 2005 and 2004:2005:

                 

                 

                Year ending December 31,

                 

                Millions, except share and per share amounts

                 

                2006

                 

                2005

                 

                2004

                 

                Opening balance - outstanding Incentive Options

                 

                34,280

                 

                46,530

                 

                50,565

                 

                Forfeited

                 

                (1,200

                )

                (4,500

                )

                 

                Exercised

                 

                (3,530

                )

                (7,750

                )

                (4,035

                )

                Ending balance - outstanding Incentive Options

                 

                29,550

                 

                34,280

                 

                46,530

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Opening balance - exercisable Incentive Options

                 

                9,080

                 

                10,530

                 

                7,365

                 

                Vested

                 

                6,000

                 

                6,300

                 

                7,200

                 

                Exercised

                 

                (3,530

                )

                (7,750

                )

                (4,035

                )

                Ending balance - exercisable Incentive Options

                 

                11,550

                 

                9,080

                 

                10,530

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Intrinsic value of Incentive Options exercised

                 

                $

                1.5

                 

                $

                3.4

                 

                $

                1.9

                 

                Exercise price - beginning of year

                 

                $

                149.25

                 

                $

                140.80

                 

                $

                132.83

                 

                Exercise price - end of year

                 

                $

                158.21

                 

                $

                149.25

                 

                $

                140.80

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Compensation expense (income)

                 

                $

                 

                $

                (3.5

                )

                $

                9.0

                 

                 
                 Year ending December 31,
                 
                Millions, except share and per share amounts

                 
                 2007
                 2006
                 2005
                 
                Opening balance—outstanding Options  29,550  34,280  46,530 
                 Forfeited  (8,100) (1,200) (4,500)
                 Exercised  (11,550) (3,530) (7,750)
                  
                 
                 
                 
                Ending balance—outstanding Options  9,900  29,550  34,280 
                  
                 
                 
                 
                Opening balance—exercisable Options  11,550  9,080  10,530 
                 Vested  3,300  6,000  6,300 
                 Exercised  (11,550) (3,530) (7,750)
                  
                 
                 
                 
                Ending balance—exercisable Options  3,300  11,550  9,080 
                  
                 
                 
                 
                Intrinsic value of Options exercised $4.7 $1.5 $3.4 
                Exercise price—beginning of year $158.21 $149.25 $140.80 
                Exercise price—end of year $167.70 $158.21 $149.25 
                Compensation expense (income) $ $ $(3.5)
                  
                 
                 
                 

                        

                The total in-the-money value of all outstanding Incentive Options and those Incentive Options currently exercisable at December 31, 20062007 was $12.5$3.4 million and $4.9$1.1 million. The Incentive Options expire in February of 2010. White Mountains expects approximately 6,0003,300 Incentive Options to become exercisable in 20072008 and will issue common shares when the Incentive Options are exercised.


                Share-Based Compensation Based on OneBeacon Ltd. Common Shares

                  OB Performance Shares

                        The following summarizes activity for the year ended December 31, 2007 for OB Performance Shares granted under the OB Incentive Plan:

                 
                 December 31, 2007
                 
                Millions, except share amounts

                 Target
                Performance
                Shares
                Outstanding

                 Accrued
                Expense

                 
                Beginning of period  $ 
                 Payments and deferrals    
                 New awards 934,131   
                 Forfeitures and cancellations (158,638) (.2)
                 Transfers from the WTM Incentive Plan(1) 288,197  4.4 
                 Expense recognized   5.1 
                  
                 
                 
                Ending December 31, 1,063,690 $9.3 
                  
                 
                 

                    (1)
                    In February 2007, the WTM performance shares of OneBeacon employees were replaced with an equivalent value of OB Performance Shares issued under the OneBeacon Long-Term Incentive Plan.

                        If 100% of the outstanding OB Performance Shares had been vested on December 31, 2007, the total additional compensation cost to be recognized would have been $11.7 million, based on December 31, 2007 accrual factors (common share price and payout assumptions).

                        The following summarizes OB Performance Shares outstanding awarded under the OB Incentive Plan at December 31, 2007 for each performance cycle:

                Millions, except share amounts

                 Target OB
                Performance
                Shares
                Outstanding

                 Accrued
                Expense

                 
                Performance cycle:      
                 2005-2007 122,859 $1.8 
                 2006-2008 141,522  1.9 
                 2007-2009 826,395  5.8 
                  
                 
                 
                 Sub-total 1,090,776  9.5 
                  Assumed forfeitures (27,086) (.2)
                  
                 
                 
                Total at December 31, 2007 1,063,690 $9.3 
                  
                 
                 

                  Non-Qualified Options

                In November 2006, in connection with the Offering,its initial public offering, OneBeacon Ltd. issued to its key employees 1,420,000 fixed-price Non-Qualified Options to acquire OneBeacon Ltd. common shares. The exercise price of the Non-Qualified Options were set at 20% above the middle of thehave a $30.00 strike price range in OneBeacon’s preliminary prospectus for the OneBeacon Offering or $30.00. The Non-Qualified Optionsand vest in equal installments on each of the third, fourth and fifth anniversaries of the date of the OneBeacon Offeringissuance and have a 5.551/2 year term. The grant date fair value of each Non-Qualified Option award at the grant date was estimated using a closed-formBlack-Scholes option pricing model usingwith an expected volatility assumption of 30%, a risk-free interest rate assumption of 4.6%, a forfeiture assumption of 5%, an expected dividend rate assumption of 3.4% and an expected term assumption of 5.551/2 years. As of December 31, 2007 and 2006, there are 1,324,306 and 1,420,000 options outstanding. For the year ended December 31, 2007 and 2006, OneBeacon Ltd. recognized $1.2 million and $.2 million of expense during 2006 associated with its Non-Qualified Options.


                Share-Based Compensation Under Qualified Retirement Plans

                        In April 2007, the ESOP was merged into the 401(k) Plan to form the OneBeacon 401(k) Savings and ESOP Plan. As of December 31, 2007 and 2006, and 2005, the 401(k) Plansplans owned less than 1% of either of the Company's or OneBeacon Ltd.'s total Company’s common shares outstanding. For 2007, OneBeacon expects to offer its employees the ability to invest their balances in several different investment options, including the Company’s and OneBeacon Ltd.’s common shares.

                The variable contribution amounts earned by eligible participants of the ESOP constituted approximately 6%, 3%6% and 4.5%3% of salary for the years ended 2007, 2006 2005 and 2004.2005. OneBeacon recorded $15.4 million, $15.5 million $7.8 million and $13.3$7.8 million in compensation expense to pay benefits and allocate common shares to participant’sparticipant's accounts for the years ended 2007, 2006 2005 and 2004.2005. The contributions made to the ESOP with respect to the yearsyear ended 2004 and 2005 were made with the Company’sCompany's common shares and the contributions made to the ESOP with respect to the yearyears ended 2007 and 2006 were made with either the Company's or OneBeacon Ltd.'s common shares.shares, dependent on the employer.

                F-50




                NOTE 10.13. Mandatorily Redeemable Preferred Stock of Subsidiaries

                        White Mountains has two classes of mandatorily redeemable preferred stock of subsidiaries that fall within the scope of SFAS No. 150, “Accounting"Accounting for Certain Financial Instruments with Characteristics of both Liabilities and Equity”Equity" and are considered noncontrolling interests under FASB Staff Position No. 150-3. Accordingly, White Mountains classifies these instruments as liabilities and has recorded them at their historical carrying values. All dividends and accretion on White Mountains’Mountains' mandatorily redeemable preferred stock have been recorded as interest expense. During the years ended December 31, 2007, 2006 2005 and 2004,2005, White Mountains recorded $65.4 million, $58.6 million $52.4 million and $47.6$52.4 million as interest expense on preferred stock.

                Berkshire Preferred Stock

                        As part of the financing for the OneBeacon Acquisition, Berkshire invested a total of $300 million in cash, of which (1) $225 million was for the purchase of cumulative non-voting preferred stock of Fund American (the “Berkshire"Berkshire Preferred Stock”Stock"), which has a $300 million redemption value; and (2) $75 million was for the purchase of warrants to acquire 1,724,200 common shares of the Company. The Berkshire Preferred Stock is entitled to a dividend of no less than 2.35% per quarter and is mandatorily redeemable on May 31, 2008. The Berkshire Preferred Stock was initially recorded at $145.2 million, as the aggregate proceeds received from Berkshire of $300 million were originally allocated between the Berkshire Preferred Stock and the warrants, based on their relative fair values, in accordance with Accounting Principles Board Opinion No. 14, “Accounting"Accounting for Convertible Debt and Debt Issued with Stock Purchase Warrants”Warrants". The difference between the redemption value and the amount initially recorded for the Berkshire Preferred Stock will be accreted through the income statement as interest expense. Through December 31, 2006,2007, the carrying value of the Berkshire Preferred Stock had been accreted up to $242.3$278.4 million. During each of the years ended December 31, 2007, 2006 2005 and 2004,2005, White Mountains declared and paid dividends of $28.2$28.3 million on the Berkshire Preferred Stock. During the years ended December 31, 2007, 2006 2005 and 2004,2005, White Mountains recorded $36.1 million, $28.3 million $22.1 million and $17.3$22.1 million of accretion charges related to the Berkshire Preferred Stock.

                Zenith Preferred Stock

                        Also as part of the financing for the OneBeacon Acquisition, Zenith Insurance Company (“Zenith”("Zenith") purchased $20.0 million in cumulative non-voting preferred stock of a subsidiary of the Company (the “Zenith"Zenith Preferred Stock”Stock"). The Zenith Preferred Stock is entitledWhite Mountains' exercised its option to a dividend of no less than a 2.5% per quarter through June 30, 2007 and a dividend of no less than 3.5% per quarter thereafter and is mandatorily redeemable on May 31, 2011. At White Mountains’ option, which it expects to exercise,redeem the Zenith Preferred Stock may be redeemed on June 30, 2007. During 2007, 2006 2005 and 2004,2005, White Mountains declared and paid dividends of $2.0$1.0 million, $2.0 million and $2.0 million on the Zenith Preferred Stock.

                Economic Defeasance

                        In connection with the OneBeacon Offering, White Mountains established two irrevocable grantor trusts to economically defease the Berkshire Preferred Stock and the Zenith Preferred Stock. The assets of each trust are solely dedicated to the satisfaction of the payment of dividends and redemption amounts on the $300 million liquidation preference of the Berkshire Preferred Stock and the $20 million liquidation preference of the Zenith Preferred Stock. Concurrently with the closing of the OneBeacon Offering, White Mountains funded the trusts with cash that was used to purchase a portfolio of fixed maturity securities issued by the U.S. government or government-sponsored enterprises. The scheduled interest and principal payments of the portfolio of fixed maturity securities in each trust is sufficient to pay when due all amounts required under the terms of the Berkshire Preferred Stock and the Zenith Preferred Stock, including the mandatory redemption of the Berkshire Preferred Stock in May 2008 and2008. In connection with the optional redemption of the Zenith Preferred Stock on June 30, 2007, the investments in June 2007.the related trust were liquidated and the proceeds used for the redemption. As of December 31, 2006,2007, the carrying value of the investments held in trust was $338.9$305.6 million.


                NOTE 11.14. Common Shareholders’Shareholders' Equity

                Common shares repurchased and retired

                        

                On October 26, 2007, White Mountains repurchased 282,341 of its common shares for $500 per share, or $141.2 million, in a transaction with an institutional investor. In November 2007, 8,500 shares were repurchased for $4.5 million from another institutional investor. These transactions were the first repurchases under the previously announced share repurchase plan authorized by White Mountains' Board of Directors on November 17, 2006. There are 709,159 shares remaining for future share repurchases under the plan. During 2006 and 2005, the Company did not repurchase any common shares. During 2004,In addition, during 2007, 2006 and 2005 the Company repurchased for cash 97 common shares for $.1 million. In addition, during 2006, 2005 and 2004 the Company repurchased4,465, 0, 316 and 316 outstanding Restricted Shares held by certain key employees who were instead granted the market value of such shares in various non-qualified deferred compensation plans of the Company and its subsidiaries (See Note 9)12). During 2005, the Company cancelled and retired 1,000 Restricted Shares that were forfeited by a former employee. In conformance with Bermuda law, the Company retires all common shares it repurchases.

                Common shares issued

                        

                On June 29, 2004, Berkshire exercised allDuring 2007, the Company issued a total of its warrants to purchase 1,724,20066,125 common shares, which consisted of White Mountains for $294 million. Berkshire holds approximately 16.0%11,550 shares issued in satisfaction of White Mountains’ outstanding common stock at December 31, 2006Options exercised and 2005. Berkshire acquired the warrants in connection with the financing of White Mountains’ acquisition of OneBeacon in 2001. The warrants were exercisable at any time until May 200854,000 Restricted Shares issued to key management personnel, and callable by the Company on or after May 31, 2005. In consideration for the early exercise575 shares issued to directors of the warrants, Berkshire and the Company agreed to reduce the exercise price by approximately 2%.

                Company. During 2006, the Company issued a total of 3,530 common shares, which consisted of shares issued in satisfaction of Options exercised. During 2005, the Company issued a total of 7,750 common shares, which consisted of shares issued in satisfaction of Options exercised. During 2004, in addition to the Berkshire warrant exercise, the Company issued a total of 41,807 common shares, which consisted of 27,772 shares issued to the OneBeacon employee stock ownership plan, 10,000 Restricted Shares issued to key management personnel, and 4,035 shares issued in satisfaction of Options exercised.

                Dividends on common shares

                During 2007, 2006 2005 and 2004,2005, the Company declared and paid cash dividends totalling $86.2 million (or $8.00 per common share), $86.2 million (or $8.00 per common share) and $9.1 million (or $1.00 per common share), respectively..

                NOTE 12.15. Statutory Capital and Surplus

                        

                White Mountains’Mountains' insurance and reinsurance operations are subject to regulation and supervision in each of the jurisdictions where they are domiciled and licensed to conduct business. Generally, regulatory authorities have broad supervisory and administrative powers over such matters as licenses, standards of solvency, premium rates, policy forms, investments, security deposits, methods of accounting, form and content of financial statements, reserves for unpaid loss and LAE, reinsurance, minimum capital and surplus requirements, dividends and other distributions to shareholders, periodic examinations and annual and other report filings. In general, such regulation is for the protection of policyholders rather than shareholders. Over the last several years most states have implemented laws that establish standards for current, as well as continued, state accreditation. In addition, the NAIC uses risk-based capital (“RBC”("RBC") standards for property and casualty insurers as a means of monitoring certain aspects affecting the overall financial condition of insurance companies. At December 31, 2006,2007, White Mountains’Mountains' active insurance and reinsurance operating subsidiaries met their respective RBC requirements.

                        

                OneBeacon’sOneBeacon's consolidated combined policyholders’policyholders' surplus as reported to various regulatory authorities as of December 31, 2007 and 2006, and 2005, was $2,013.1$1,920.9 million and $1,675.9$2,013.1 million. OneBeacon’sOneBeacon's consolidated combined statutory net income for the years ended December 31, 2007, 2006 and 2005 and 2004 was $335.2 million, $372.0 million $212.7 million and $381.9$212.7 million. The principal differences between OneBeacon’sOneBeacon's combined statutory amounts and the amounts reported in accordance with GAAP include deferred acquisition costs, deferred taxes, gains recognized under retroactive reinsurance contracts, market value adjustments for debt securities and recognition of pension plan curtailment gains. OneBeacon’sOneBeacon's insurance subsidiaries’subsidiaries' statutory policyholders’policyholders' surplus at December 31, 20062007 was in excess of the minimum requirements of relevant state insurance regulations.


                Folksamerica Re’s policyholders’        Folksamerica's policyholders' surplus, as reported to various regulatory authorities as of December 31, 2007 and 2006, and 2005, was $1,153.3$926.6 million and $1,074.2$1,153.3 million. Folksamerica Re’sFolksamerica's statutory net income (loss) for the years ended December 31, 2007, 2006 and 2005 and 2004 was $62.9 million, $46.9 million $(81.7) million and $(1.0)$(81.7) million. The principal differences between Folksamerica Re’sFolksamerica's statutory amounts and the amounts reported in accordance with GAAP include deferred acquisition costs, deferred taxes, gains recognized under retroactive reinsurance contracts and market value adjustments for debt securities. Folksamerica Re’sFolksamerica's statutory policyholders’policyholders' surplus at December 31, 20062007 was in excess of the minimum requirements of relevant state insurance regulations.

                        

                In accordance with Swedish regulations, Sirius International holds restricted reserves of $902$1,023.0 million, which represents 72% of untaxed reserves, as a component of Swedish statutory shareholders’shareholders' equity. These restricted reserves cannot be paid as dividends. Sirius International’sInternational's regulatory capital at December 31, 2006,2007 was $1.6 billion.


                        WMRe (Bermuda) is subject to regulation and supervision by the Bermuda Monetary Authority ("BMA"). Generally, the BMA has broad supervisory and administrative powers over such matters as licenses, standards of solvency, investments, methods of accounting, form and content of financial statements, minimum capital and surplus requirements, and annual and other report filings. In general, such regulation is for the protection of policyholders rather than shareholders. As of December 31, 2007, WMRe (Bermuda) had statutory capital and surplus of $767.8 million, which includes Scandinavian Re and its other subsidiaries, was $1.4 billion.in excess of the minimum requirements of the BMA.

                Dividend Capacity

                        

                Dividend Capacity

                Under the insurance laws of the states and jurisdictions under which White Mountains’Mountains' insurance and reinsurance operating subsidiaries are domiciled, an insurer is restricted with respect to the timing or the amount of dividends it may pay without prior approval by regulatory authorities. Accordingly, there can be no assurance regarding the amount of such dividends that may be paid by such subsidiaries in the future. Following is a description of the ability of White Mountains’Mountains' insurance and reinsurance operating subsidiaries to pay dividends to the Company and certain of its intermediate holding companies:

                  OneBeacon:

                        

                Subsequent toDuring the OneBeacon Offering, the Company and its intermediate holding companies expect to receive regular shareholder dividends fromyear ended December 31, 2007, OneBeacon Ltd. The boardpaid $83.7 million of OneBeacon Ltd. has authorized quarterly dividend paymentsdividends to its common shareholders, $60.3 million of $0.21 per share, commencing in the first quarterwhich was paid to an immediate holding company of 2007.White Mountains.

                        

                Generally, OneBeacon’sOneBeacon's regulated insurance operating subsidiaries have the ability to pay dividends during any 12 month period without the prior approval of regulatory authorities in an amount equal to the greater of prior year statutory net income or 10% of prior year end statutory surplus, subject to the availability of unassigned funds. As a result, based upon 20062007 statutory net income OneBeacon’sOneBeacon's top tier regulated insurance operating subsidiaries have the ability to pay approximately $234.3$346.1 million of dividends during 20072008 without prior approval of regulatory authorities, subject to the availability of unassigned funds. At December 31, 2006, OneBeacon’s2007, OneBeacon's top tier regulated insurance operating subsidiaries had $1.6$1.5 billion of unassigned funds.

                        

                In addition, as of December 31, 2006,2007, OneBeacon had approximately $30.7$380.0 million of net unrestricted cash, and fixed maturity and equity investments outside of its regulated insurance operating subsidiaries and OneBeacon Ltd. and its intermediate holding companies had an additional $65.8 million of unrestricted cash and fixed maturity investments.subsidiaries. During 2006,2007, OneBeacon paid $90.1$393.9 million of dividends to Fund American and OneBeacon Ltd. paid $12.0 million of dividends to its immediate parent.American.

                        Fund American's ability to declare or pay dividends is limited by the terms of the Berkshire Preferred Stock. Fund American may not, under certain circumstances, declare or pay any dividend or distribution without the consent of the holders of a majority of outstanding shares of the Berkshire Preferred Stock.

                  White Mountains Re:

                Folksamerica Re has the ability to pay dividends during any 12 month period without the prior approval of regulatory authorities in an amount equal to the lesser of net investment income, as defined by statute, or 10% of statutory surplus, in both cases as most recently reported to regulatory authorities, subject to the availability of earned surplus. As a result, based upon December 31, 20062007 statutory surplus of $1,153.3$926.6 million, Folksamerica Re would have the ability to pay approximately $115.3$92.7 million of dividends during 20072008 without prior approval of regulatory authorities, subject to the availability of earned surplus. As of December 31, 2006,2007, Folksamerica Re had $0.6$69.0 million of earned surplus.

                In addition, as of December 31, 2006, Folksamerica had approximately $31.0 million of unrestricted cash and fixed maturity investments outside of its regulated insurance operating subsidiaries. During 2006, Folksamerica Re paid $5.0 million in dividends to its immediate parent.

                Sirius International has the ability to pay dividends subject to the availability of unrestricted statutory surplus. Historically, Sirius International has allocated the majority of its earnings to the Safety Reserve (see"Safety Reserve” Reserve"below). As a result, as of December31, 2006,December 31, 2007, Sirius International had no$52.0 million of unrestricted statutory surplus.surplus, which is available for distribution in 2008. Based on its 2007 results, Sirius International would have the ability to declare and pay additional dividends (on top of the $52.0 million noted above) of up to $60.0 million in 2008 without regulatory approval, if it elects not to allocate its related pre-tax earnings to the Safety Reserve.

                In accordance with the provisions of Swedish law, Sirius International can voluntarily transfer its pre-tax income, or a portion thereof, subject to certain limitations, to its parent company to minimize taxes. In early 2007,2008, Sirius International will transfer approximately $35.0$33.0 million of its 20062007 pre-tax income to its parent company.

                        During 2007, White Mountains Re increased the capital of WMRe (Bermuda), as Sirius International first contributed $136.0 million to WMRe (Bermuda), and then White Mountains Re extracted WMRe (Bermuda) from Sirius International and contributed the net proceeds of its May 2007 Preference Share issuance, or approximately $246 million, to WMRe (Bermuda). Additionally, during the fourth quarter of 2007, Folksamerica redeemed $285.0 million of its common shares, after receiving approval from the Insurance Department of the State of New York, $250.0 million of these proceeds were used to further capitalize WMRe (Bermuda). As of December 31, 2007, WMRe (Bermuda)'s capital was $776.5 million.

                        WMRe (Bermuda) has the ability to declare and pay dividends of up to $103.1 million in 2008 without regulatory approval, subject to meeting all appropriate liquidity and solvency requirements.

                WMRUS has the ability to distribute its 20072008 earnings without restriction. At December 31, 2006,2007, WMRUS had $7.0$1.8 million of unrestricted cash. During 2006,2007, WMRUS paid $14.0$8.0 million of cash dividends to its immediate parent.


                        

                In addition, as of December 31, 2006,2007, White Mountains Re and its intermediate holding companies had an additional $25.8$57.8 million of net unrestricted cash and fixed maturity investments outside of Folksamerica, Sirius International, WMRE (Bermuda), and WMRUS. During 2006,2007, White Mountains Re paid $45.9$392.0 million of cash dividends from the net proceeds of the WMRe Senior Notes and distributed its $54.0 million investment in Symetra warrants to its immediate parent during the first quarter 2007. White Mountains Re paid an additional $20.0 million of dividends to its immediate parent.parent during 2007.

                  Esurance:

                        

                Esurance:

                Generally, Esurance’sEsurance's regulated insurance operating subsidiaries have the ability to pay dividends during any 12 month period without the prior approval of regulatory authorities in an amount equal to the lesser of prior year statutory net income or 10% of prior year end statutory surplus, subject to the availability of unassigned funds. As a result, based on December 31, 20062007 statutory net income, Esurance’sEsurance's top tier regulated insurance operating subsidiary has the ability to pay $4.2$2.7 million of dividends during 20072008 without prior approval of regulatory authorities, subject to the availability of unassigned funds. As of December 31,2006, Esurance’s31, 2007, Esurance's top tier regulated insurance operating subsidiary had $21.2$30.3 million of unassigned funds.


                        

                In addition, as of December 31, 2006,2007, Esurance had $2.5$.4 million of net unrestricted cash and fixed maturity investments outside of its regulated insurance operating subsidiaries. During 2006,2007, Esurance did not pay any cash dividends to its immediate parent.

                  Other Operations:operations:

                        

                As of December 31, 2006,2007, White Mountains had $496.7$461.8 million of net unrestricted cash, and fixed maturity and equity investments at the Company and its intermediate holding companies included in its other operations segment.

                Safety Reserve

                In accordance with provisions of Swedish law, Sirius International is permitted to transfer up to the full amount of its pre-tax income, subject to certain limitations, into an untaxed reserve referred to as a safety reserve, which amounted to $1.3$1.4 billion at December 31, 2006.2007. Under GAAP, an amount equal to the safety reserve, net of the related deferred tax liability established at the Swedish tax rate of 28%, is classified as shareholders’shareholders' equity. Generally, this deferred tax liability is only required to be paid by Sirius International if it fails to maintain predetermined levels of premium writings and loss reserves in future years. As a result of the indefinite deferral of these taxes, Swedish regulatory authorities do not apply any taxes to the safety reserve when calculating solvency capital under Swedish insurance regulations. Accordingly, under local statutory requirements, an amount equal to the deferred tax liability on Sirius International’sInternational's safety reserve ($351397.8 million at December 31, 2006)2007) is included in solvency capital.

                NOTE 13.16. Segment Information

                White Mountains has determined that its reportable segments are OneBeacon, White Mountains Re, Esurance and Other Operations. White Mountains has made its segment determination based on consideration of the following criteria: (i) the nature of the business activities of each of the Company’sCompany's subsidiaries and affiliates; (ii) the manner in which the Company’sCompany's subsidiaries and affiliates are organized; (iii) the existence of primary managers responsible for specific subsidiaries and affiliates; and (iv) the organization of information provided to the Board of Directors.

                        OneBeacon's business comprises three major lines of business: specialty, commercial and personal. OneBeacon's specialty lines are a collection of niche insurance business lines including specialty liability products, marine insurance, tuition reimbursement, professional liability and accident & health products. OneBeacon's commercial lines provide property and liability insurance products including multi-peril, auto, workers compensation, general liability umbrella, property and inland marine products to small and middle market businesses. OneBeacon's personal lines underwrite homeowners, personal auto and combination insurance policies. White Mountains Re provides reinsurance coverage for property, casualty, accident & health, agriculture, aviation and space and certain other exposures on a worldwide basis. Esurance writes personal auto insurance through its website and select online agents. Other Operations consists of the Company, the Company's intermediate subsidiary holding companies, the consolidated results of the Tuckerman Funds, the International American Group, WM Advisors and White Mountains' investments in Symetra, Delos and Pentelia.


                        Significant intercompany transactions among White Mountains’Mountains' segments have been eliminated herein. Segment information for all prior periods has been restated for the effect of the Reorganization (See Note 1). Financial information for White Mountains’Mountains' segments follows:

                Millions

                 OneBeacon
                 White Mountains Re
                 Esurance
                 Other Operations
                 Total
                Year ended December 31, 2007:               
                Earned insurance and reinsurance premiums $1,873.6 $1,146.8 $763.3 $ $3,783.7
                Net investment income  208.5  210.5  29.6  84.4  533.0
                Net realized investment gains  173.7  63.7  4.5  21.3  263.2
                Other revenue  17.2  5.0  13.6  118.1  153.9
                  
                 
                 
                 
                 
                Total revenues  2,273.0  1,426.0  811.0  223.8  4,733.8
                  
                 
                 
                 
                 
                Losses and LAE  1,089.8  701.0  622.4  (6.8) 2,406.4
                Insurance and reinsurance acquisition expenses  318.9  255.0  202.7    776.6
                Other underwriting expenses  329.4  118.5  58.4  2.7  509.0
                General and administrative expenses  9.8  26.2  .2  164.3  200.5
                Accretion of fair value adjustment to loss and LAE reserves  16.0  5.4      21.4
                Interest expense on debt  45.2  23.2    4.6  73.0
                Interest expense—dividends and accretion on preferred stock  65.4        65.4
                  
                 
                 
                 
                 
                Total expenses  1,874.5  1,129.3  883.7  164.8  4,052.3
                  
                 
                 
                 
                 
                Pretax income (loss) $398.5 $296.7 $(72.7)$59.0 $681.5
                  
                 
                 
                 
                 
                Year ended December 31, 2006:               
                Earned insurance and reinsurance premiums $1,944.0 $1,241.2 $527.5 $ $3,712.7
                Net investment income  187.6  182.7  18.4  46.8  435.5
                Net realized investment gains  156.4  59.0  6.9  50.4  272.7
                Gain on sale of shares through initial public offering of OneBeacon Ltd.         171.3  171.3
                Other revenue  38.8  47.8  7.4  108.0  202.0
                  
                 
                 
                 
                 
                Total revenues  2,326.8  1,530.7  560.2  376.5  4,794.2
                  
                 
                 
                 
                 
                Losses and LAE  1,180.3  884.6  383.9  3.9  2,452.7
                Insurance and reinsurance acquisition expenses  332.3  287.2  135.3    754.8
                Other underwriting expenses  360.1  94.7  48.8  1.8  505.4
                General and administrative expenses  15.3  24.2  .2  178.6  218.3
                Accretion of fair value adjustment to loss and LAE reserves  23.0  1.5      24.5
                Interest expense on debt  45.6  1.5    3.0  50.1
                Interest expense—dividends and accretion on preferred stock  58.6        58.6
                  
                 
                 
                 
                 
                Total expenses  2,015.2  1,293.7  568.2  187.3  4,064.4
                  
                 
                 
                 
                 
                Pretax income (loss) $311.6 $237.0 $(8.0)$189.2 $729.8
                  
                 
                 
                 
                 

                Millions

                 OneBeacon
                 White Mountains Re
                 Esurance
                 Other Operations
                 Total
                Year ended December 31, 2005:               
                Earned insurance and reinsurance premiums $2,118.4 $1,371.6 $306.8 $1.8 $3,798.6
                Net investment income  242.4  148.9  9.8  90.4  491.5
                Net realized investment gains (losses)  122.8  76.8  2.1  (89.1) 112.6
                Other revenue  50.3  33.5  3.0  142.4  229.2
                  
                 
                 
                 
                 
                Total revenues  2,533.9  1,630.8  321.7  145.5  4,631.9
                  
                 
                 
                 
                 
                Losses and LAE  1,401.5  1,237.9  206.2  12.6  2,858.2
                Insurance and reinsurance acquisition expenses  390.7  279.6  90.8  .1  761.2
                Other underwriting expenses  278.9  107.0  37.2  1.6  424.7
                General and administrative expenses  8.4  12.4    128.0  148.8
                Accretion of fair value adjustment to loss and LAE reserves  26.0  10.9      36.9
                Interest expense on debt  44.1  .4      44.5
                Interest expense—dividends and accretion on preferred stock  52.4        52.4
                  
                 
                 
                 
                 
                Total expenses  2,202.0  1,648.2  334.2  142.3  4,326.7
                  
                 
                 
                 
                 
                Pretax income (loss) $331.9 $(17.4)$(12.5)$3.2 $305.2
                  
                 
                 
                 
                 
                Selected Balance Sheet Data

                  
                  
                  
                  
                  
                Millions

                 OneBeacon
                 White
                Mountains Re

                 Esurance
                 Other
                Operations

                 Total
                December 31, 2007:               
                Total investments $5,169.5 $5,170.2 $754.9 $554.4 $11,649.0
                Reinsurance recoverable on paid and unpaid losses  2,651.4  842.2  2.2  31.6  3,527.4
                Total assets  9,533.9  7,361.6  1,013.0  1,197.1  19,105.6
                Loss and LAE reserves  4,480.3  3,252.1  285.2  44.5  8,062.1
                Total liabilities  7,627.4  5,132.2  568.0  197.2  13,524.8
                Minority interest    324.4    543.0  867.4
                Total common shareholders' equity  1,906.5  1,905.0  445.0  456.9  4,713.4
                  
                 
                 
                 
                 
                December 31, 2006:               
                Total investments $5,212.2 $4,568.7 $518.8 $1,033.0 $11,332.7
                Reinsurance recoverable on paid and unpaid losses  2,875.0  1,269.1  .7  30.3  4,175.1
                Total assets  9,866.8  7,344.9  723.6  1,508.4  19,443.7
                Loss and LAE reserves  4,837.7  3,708.8  167.4  63.3  8,777.2
                Total liabilities  8,089.6  5,239.6  415.1  640.9  14,385.2
                Minority interest        603.2  603.2
                Total common shareholders' equity  1,777.2  2,105.3  308.5  264.3  4,455.3
                  
                 
                 
                 
                 

                        

                 

                 

                 

                 

                White

                 

                 

                 

                Other

                 

                 

                 

                Millions

                 

                 

                OneBeacon

                 

                Mountains Re

                 

                Esurance

                 

                Operations

                 

                Total

                 

                Year ended December 31, 2006

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Earned insurance and reinsurance premiums

                 

                $

                1,944.0

                 

                $

                1,241.2

                 

                $

                527.5

                 

                $

                 

                $

                3,712.7

                 

                Net investment income

                 

                187.6

                 

                182.7

                 

                18.4

                 

                46.8

                 

                435.5

                 

                Net realized investment gains

                 

                156.4

                 

                59.0

                 

                6.9

                 

                50.4

                 

                272.7

                 

                Gain on sale of shares of OneBeacon Insurance Group, Ltd.

                 

                 

                 

                 

                171.3

                 

                171.3

                 

                Other revenue

                 

                38.8

                 

                47.8

                 

                7.4

                 

                108.0

                 

                202.0

                 

                Total revenues

                 

                2,326.8

                 

                1,530.7

                 

                560.2

                 

                376.5

                 

                4,794.2

                 

                Losses and LAE

                 

                1,180.3

                 

                884.6

                 

                383.9

                 

                3.9

                 

                2,452.7

                 

                Insurance and reinsurance acquisition expenses

                 

                332.3

                 

                287.2

                 

                135.3

                 

                 

                754.8

                 

                Other underwriting expenses

                 

                360.1

                 

                94.7

                 

                48.8

                 

                1.8

                 

                505.4

                 

                General and administrative expenses

                 

                15.3

                 

                24.2

                 

                .2

                 

                178.6

                 

                218.3

                 

                Accretion of fair value adjustment to loss and LAE reserves

                 

                23.0

                 

                1.5

                 

                 

                 

                24.5

                 

                Interest expense on debt

                 

                45.6

                 

                1.5

                 

                 

                3.0

                 

                50.1

                 

                Interest expense - dividends and accretion on preferred stock

                 

                58.6

                 

                 

                 

                 

                58.6

                 

                Total expenses

                 

                2,015.2

                 

                1,293.7

                 

                568.2

                 

                187.3

                 

                4,064.4

                 

                Pretax income (loss)

                 

                $

                311.6

                 

                $

                237.0

                 

                $

                (8.0

                )

                $

                189.2

                 

                $

                729.8

                 

                Year ended December 31, 2005

                Earned insurance and reinsurance premiums

                 

                $

                2,118.4

                 

                $

                1,371.6

                 

                $

                306.8

                 

                $

                1.8

                 

                $

                3,798.6

                 

                Net investment income

                 

                242.4

                 

                148.9

                 

                9.8

                 

                90.4

                 

                491.5

                 

                Net realized investment gains (losses)

                 

                122.8

                 

                76.8

                 

                2.1

                 

                (89.1

                )

                112.6

                 

                Other revenue

                 

                50.3

                 

                33.5

                 

                3.0

                 

                142.4

                 

                229.2

                 

                Total revenues

                 

                2,533.9

                 

                1,630.8

                 

                321.7

                 

                145.5

                 

                4,631.9

                 

                Losses and LAE

                 

                1,401.5

                 

                1,237.9

                 

                206.2

                 

                12.6

                 

                2,858.2

                 

                Insurance and reinsurance acquisition expenses

                 

                390.7

                 

                279.6

                 

                90.8

                 

                0.1

                 

                761.2

                 

                Other underwriting expenses

                 

                278.9

                 

                107.0

                 

                37.2

                 

                1.6

                 

                424.7

                 

                General and administrative expenses

                 

                8.4

                 

                12.4

                 

                 

                128.0

                 

                148.8

                 

                Accretion of fair value adjustment to loss and LAE reserves

                 

                26.0

                 

                10.9

                 

                 

                 

                36.9

                 

                Interest expense on debt

                 

                44.1

                 

                0.4

                 

                 

                 

                44.5

                 

                Interest expense - dividends and accretion on preferred stock

                 

                52.4

                 

                 

                 

                 

                52.4

                 

                Total expenses

                 

                2,202.0

                 

                1,648.2

                 

                334.2

                 

                142.3

                 

                4,326.7

                 

                Pretax income (loss)

                 

                $

                331.9

                 

                $

                (17.4

                )

                $

                (12.5

                )

                $

                3.2

                 

                $

                305.2

                 


                 

                 

                 

                 

                White 

                 

                 

                 

                Other

                 

                 

                 

                Millions

                 

                 

                OneBeacon

                 

                Mountains Re

                 

                Esurance

                 

                Operations

                 

                Total

                 

                Year ended December 31, 2004

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Earned insurance and reinsurance premiums

                 

                $

                2,378.5

                 

                $

                1,265.5

                 

                $

                176.5

                 

                $

                 

                $

                3,820.5

                 

                Net investment income

                 

                219.9

                 

                98.5

                 

                3.5

                 

                39.0

                 

                360.9

                 

                Net realized investment gains

                 

                129.4

                 

                29.6

                 

                1.1

                 

                21.0

                 

                181.1

                 

                Other revenue

                 

                59.5

                 

                36.1

                 

                2.2

                 

                95.0

                 

                192.8

                 

                Total revenues

                 

                2,787.3

                 

                1,429.7

                 

                183.3

                 

                155.0

                 

                4,555.3

                 

                Losses and LAE

                 

                1,545.2

                 

                918.9

                 

                122.4

                 

                4.6

                 

                2,591.1

                 

                Insurance and reinsurance acquisition expenses

                 

                442.3

                 

                271.8

                 

                30.3

                 

                 

                744.4

                 

                Other underwriting expenses

                 

                369.2

                 

                122.9

                 

                26.8

                 

                1.5

                 

                520.4

                 

                General and administrative expenses

                 

                81.9

                 

                15.1

                 

                 

                204.0

                 

                301.0

                 

                Accretion of fair value adjustment to loss and LAE reserves

                 

                33.2

                 

                10.1

                 

                 

                 

                43.3

                 

                Interest expense on debt

                 

                45.0

                 

                3.8

                 

                 

                .3

                 

                49.1

                 

                Interest expense - dividends and accretion on preferred stock

                 

                47.6

                 

                 

                 

                 

                47.6

                 

                Total expenses

                 

                2,564.4

                 

                1,342.6

                 

                179.5

                 

                210.4

                 

                4,296.9

                 

                Pretax income (loss)

                 

                $

                222.9

                 

                $

                87.1

                 

                $

                3.8

                 

                $

                (55.4

                )

                $

                258.4

                 

                Millions

                 

                 

                 

                White

                 

                 

                 

                Other

                 

                 

                 

                Selected Balance Sheet Data

                 

                OneBeacon

                 

                Mountains Re

                 

                Esurance

                 

                Operations

                 

                Total

                 

                December 31, 2006

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Total investments

                 

                $

                5,212.2

                 

                $

                4,568.7

                 

                $

                518.8

                 

                $

                1,033.0

                 

                $

                11,332.7

                 

                Reinsurance recoverable on paid and unpaid losses

                 

                2,875.0

                 

                1,269.1

                 

                .7

                 

                30.3

                 

                4,175.1

                 

                Total assets

                 

                9,866.8

                 

                7,344.9

                 

                723.6

                 

                1,508.4

                 

                19,443.7

                 

                Loss and LAE reserves

                 

                4,837.7

                 

                3,708.8

                 

                167.4

                 

                63.3

                 

                8,777.2

                 

                Total liabilities

                 

                8,089.6

                 

                5,239.6

                 

                415.1

                 

                640.9

                 

                14,385.2

                 

                Minority interest

                 

                 

                 

                 

                603.2

                 

                603.2

                 

                Total common shareholders’ equity

                 

                1,777.2

                 

                2,105.3

                 

                308.5

                 

                264.3

                 

                4,455.3

                 

                December 31, 2005

                Total investments

                 

                $

                4,793.0

                 

                $

                4,231.0

                 

                $

                289.7

                 

                $

                552.7

                 

                $

                9,866.4

                 

                Reinsurance recoverable on paid and unpaid losses

                 

                3,145.2

                 

                1,931.0

                 

                .2

                 

                26.3

                 

                5,102.7

                 

                Total assets

                 

                9,768.0

                 

                8,458.2

                 

                414.2

                 

                777.7

                 

                19,418.1

                 

                Loss and LAE reserves

                 

                5,395.9

                 

                4,680.3

                 

                94.1

                 

                60.9

                 

                10,231.2

                 

                Total liabilities

                 

                8,423.3

                 

                6,519.7

                 

                237.5

                 

                308.0

                 

                15,488.5

                 

                Minority interest

                 

                 

                 

                 

                96.4

                 

                96.4

                 

                Total common shareholders’ equity

                 

                1,344.7

                 

                1,938.5

                 

                176.7

                 

                373.3

                 

                3,833.2

                 


                The following tables provide net written premiums and earned insurance premiums for OneBeacon’sOneBeacon's ongoing businesses and in total for the years ended December 31, 2007, 2006 2005 and 2004:2005:

                Millions

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Twelve Months Ended December 31, 2006

                 

                 

                Specialty

                 

                Personal (1)

                 

                Commercial

                 

                Total (2)

                 

                Net written premiums

                 

                $

                437.6

                 

                $

                800.6

                 

                $

                718.3

                 

                $

                1,957.6

                 

                Earned insurance premiums

                 

                $

                432.3

                 

                $

                822.3

                 

                $

                689.3

                 

                $

                1,944.0

                 

                Twelve Months Ended December 31, 2005

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Net written premiums

                 

                $

                548.8

                 

                $

                910.2

                 

                $

                654.4

                 

                $

                2,121.1

                 

                Earned insurance premiums

                 

                $

                521.9

                 

                $

                933.7

                 

                $

                654.7

                 

                $

                2,118.4

                 

                Twelve Months Ended December 31, 2004

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Net written premiums

                 

                $

                565.7

                 

                $

                1,063.3

                 

                $

                826.8

                 

                $

                2,459.1

                 

                Earned insurance premiums

                 

                $

                539.0

                 

                $

                1,070.9

                 

                $

                710.3

                 

                $

                2,378.5

                 

                Millions

                 Specialty
                 Personal
                 Commercial
                 Total(1)
                Twelve Months Ended December 31, 2007:            
                 Net written premiums $446.2 $690.4 $727.7 $1,864.4
                 Earned insurance premiums $436.4 $725.0 $712.0 $1,873.6

                Twelve Months Ended December 31, 2006:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 Net written premiums $437.6 $800.6 $718.3 $1,957.6
                 Earned insurance premiums $432.3 $822.3 $689.3 $1,944.0

                Twelve Months Ended December 31, 2005:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 Net written premiums $548.8 $910.2 $654.4 $2,121.1
                 Earned insurance premiums $521.9 $933.7 $654.7 $2,118.4

                (1)  Includes results of consolidated reciprocals.

                (2) 

                Includes results from runoff operations and eliminations between underwriting units.


                NOTE 14.17. Investments in Unconsolidated Insurance Affiliates

                White Mountains’Mountains' investments in unconsolidated insurance affiliates represent operating investments in other insurerscompanies in which White Mountains has a significant voting and economic interest but does not control the entity.

                Symetra

                Symetra

                On August 2, 2004, White Mountains invested $194.7 million in Symetra in exchange for 2.0 million common shares and 1.1 million warrants to purchase common shares of Symetra (See Note 2).        As of December 31, 2006,2007, White Mountains owned 19% of Symetra’s common shares outstanding andowns 24% of Symetra’sSymetra's common shares on a fully converted basis.basis, consisting of 17.4 million common shares and warrants to acquire an additional 9.5 million common shares. White Mountains accounts for its investment in common shares of Symetra using the equity method of accounting and accounts for its Symetra warrants under SFASFAS 133, recording themthe warrants at fair value and recognizing thewith changes in fair value recognized through the income statement as a realized investment gain or loss.

                        

                The following table summarizes amounts recorded by White Mountains relating to its investment in Symetra:

                Millions

                 

                 

                Common
                shares

                 

                Warrants

                 

                Total

                 

                Initial value of investment in Symetra at closing, August 2, 2004

                 

                $

                159.3

                 

                $

                35.4

                 

                $

                194.7

                 

                Extraordinary gain - excess of fair value of acquired net assets over cost

                 

                40.7

                 

                 

                40.7

                 

                Equity in earnings of Symetra (1)

                 

                10.2

                 

                 

                10.2

                 

                Net unrealized gains from Symetra’s equity portfolio

                 

                .9

                 

                 

                .9

                 

                Increase in value of warrants

                 

                 

                1.9

                 

                1.9

                 

                Net unrealized gains from Symetra’s fixed maturity portfolio

                 

                56.6

                 

                 

                56.6

                 

                Carrying value of investment in Symetra as of December 31, 2004 (2)

                 

                $

                267.7

                 

                $

                37.3

                 

                $

                305.0

                 

                Equity in earnings of Symetra (1)

                 

                28.0

                 

                 

                28.0

                 

                Net unrealized gains from Symetra’s equity portfolio

                 

                .6

                 

                 

                .6

                 

                Increase in value of warrants

                 

                 

                10.5

                 

                10.5

                 

                Net unrealized gains (losses) from Symetra’s fixed maturity portfolio

                 

                (32.4

                )

                 

                (32.4

                )

                Carrying value of investment in Symetra as of December 31, 2005 (2)

                 

                $

                263.9

                 

                $

                47.8

                 

                $

                311.7

                 

                Equity in earnings of Symetra (1)

                 

                26.6

                 

                 

                26.6

                 

                Net unrealized gains from Symetra’s equity portfolio

                 

                2.7

                 

                 

                2.7

                 

                Dividends

                 

                (15.6

                )

                 

                (15.6

                )

                Increase in value of warrants

                 

                 

                6.2

                 

                6.2

                 

                Net unrealized gains (losses) from Symetra’s fixed maturity portfolio

                 

                (28.3

                )

                 

                (28.3

                )

                Carrying value of investment in Symetra as of December 31, 2006 (2)

                 

                $

                249.3

                 

                $

                54.0

                 

                $

                303.3

                 

                Millions

                 Common
                shares

                 Warrants
                 Total
                 
                Carrying value of investment in Symetra as of January 1, 2005 $267.7 $37.3 $305.0 
                Equity in earnings of Symetra(1)  28.0    28.0 
                Net unrealized gains from Symetra's equity portfolio  .6    .6 
                Net unrealized gains (losses) from Symetra's fixed maturity portfolio  (32.4)   (32.4)
                Increase in value of warrants    10.5  10.5 
                  
                 
                 
                 
                Carrying value of investment in Symetra as of December 31, 2005(2) $263.9 $47.8 $311.7 
                Equity in earnings of Symetra(1)  26.6    26.6 
                Net unrealized gains from Symetra's equity portfolio  2.7    2.7 
                Dividends  (15.6)   (15.6)
                Net unrealized gains (losses) from Symetra's fixed maturity portfolio  (28.3)   (28.3)
                Increase in value of warrants    6.2  6.2 
                  
                 
                 
                 
                Carrying value of investment in Symetra as of December 31, 2006(2) $249.3 $54.0 $303.3 
                Equity in earnings of Symetra(1)  31.6    31.6 
                Net unrealized gains from Symetra's equity portfolio and other  (6.9)   (6.9)
                Dividends  (31.2)   (31.2)
                Net unrealized gains (losses) from Symetra's fixed maturity portfolio  (1.5)   (1.5)
                Increase in value of warrants    23.3  23.3 
                  
                 
                 
                 
                Carrying value of investment in Symetra as of December 31, 2007(2) $241.3 $77.3 $318.6 
                  
                 
                 
                 

                (1)
                Equity in earnings is net of tax of $0.



                (2)
                Includes equity in net unrealized gains (losses) from Symetra’sSymetra's fixed maturity portfolio at December 31, 2007, 2006 and 2005 and 2004 of $(5.6) million, $(4.1) million and $24.2 millionmillion.

                        During 2007 and $56.6 million.


                During 2006, White Mountains received cash dividends from Symetra of $31.2 million and $15.6 million on its common share investment which is accounted for as a reduction of White Mountains’Mountains' investment in Symetra in accordance with equity accounting. During 2007 and 2006, White Mountains also received cash dividends from Symetra of $17.0 million and $8.5 million on its investment in Symetra warrants that was recorded as net investment income.


                        

                The following table summarizes financial information for Symetra as of December 31, 20062007 and 2005:2006:

                Millions

                 2007
                 2006
                Symetra balance sheet data:      
                Total cash and investments $17,161.6 $17,558.6
                Separate account assets  1,181.9  1,233.9
                Total assets  19,562.9  20,114.6
                Funds held under deposit contracts  15,562.0  15,986.2
                Long-term debt  448.6  298.7
                Separate account liabilities  1,181.9  1,233.9
                Total liabilities  18,277.4  18,787.3
                Common shareholders' equity  1,285.1  1,327.3
                  
                 

                        

                Millions

                 

                 

                2006

                 

                2005

                 

                Symetra balance sheet data:

                 

                 

                 

                 

                 

                Total cash and investments

                 

                $

                17,558.6

                 

                $

                18,443.8

                 

                Separate account assets

                 

                1,233.9

                 

                1,188.8

                 

                Total assets

                 

                20,115.3

                 

                20,980.1

                 

                Funds held under deposit contracts

                 

                15,986.2

                 

                16,697.9

                 

                Long-term debt

                 

                298.7

                 

                300.0

                 

                Separate account liabilities

                 

                1,233.9

                 

                1,188.8

                 

                Total liabilities

                 

                18,787.9

                 

                19,575.2

                 

                Common shareholders’ equity

                 

                1,327.4

                 

                1,404.9

                 

                The following table summarizes financial information for Symetra for the years ended December 31, 2007, 2006 2005 and 2004:2005:

                Millions

                 2007
                 2006
                 2005
                 
                Symetra income statement data:          
                Net premiums earned $530.6 $525.7 $575.5 
                Net investment income  973.6  984.9  994.2 
                Total revenues  1,589.7  1,568.4  1,628.2 
                Policy benefits  1,019.4  1,030.1  1,138.4 
                Total expenses  1,340.8  1,324.4  1,436.7 
                Net income  167.3  159.5  145.5 
                Comprehensive net income (loss)  155.3  22.4  (30.9)
                  
                 
                 
                 

                Pentelia

                        In April 2007 White Mountains invested $50 million into Pentelia Limited ("PIL") in exchange for 5.0 million common shares. White Mountains has determined that its investment in PIL is a variable interest entity (see Note 18) but it has determined that it is not the primary beneficiary. The investment is accounted for as an equity method investment. As of December 31, 2007 White Mountains investment in PIL totalled $52.4 million.

                Millions

                 

                 

                2006

                 

                2005

                 

                2004

                 

                Symetra income statement data:

                 

                 

                 

                 

                 

                 

                 

                Net premiums earned

                 

                $

                525.7

                 

                $

                575.5

                 

                $

                263.2

                 

                Net investment income

                 

                983.5

                 

                994.2

                 

                411.5

                 

                Total revenues

                 

                1,564.4

                 

                1,628.2

                 

                702.2

                 

                Policy benefits

                 

                1,030.1

                 

                1,138.4

                 

                484.4

                 

                Total expenses

                 

                1,323.3

                 

                1,436.7

                 

                618.7

                 

                Net income

                 

                158.7

                 

                145.5

                 

                57.9

                 

                Comprehensive net income (loss)

                 

                22.5

                 

                (30.9

                )

                269.3

                 

                        White Mountains also obtained an equity interest of 33% in Pentelia Capital Management ("PCM") for $1.6 million in April 2007. This investment is also accounted for under the equity method. For the year ended December 31, 2007 White Mountains recorded $(.1) million of equity in earnings in PCM. As of December 31, 2007 White Mountains investment in PCM was $1.5 million.

                        The following tables summarizes financial information for PIL as of December 31, 2007:

                Millions

                 2007
                Pentelia Limited balance sheet data:   
                Financial assets, at fair value $274.0
                Cash and cash equivalents  118.8
                Total assets  495.3
                Subscriptions received in advance  92.7
                Loan payable  75.0
                Total liabilities  188.1
                Common shareholders' equity  307.2
                  

                MSA

                On October 31, 2006, White Mountains’Mountains' investment in MSA was restructured. White Mountains received a $70 million cash dividend from MSA, following which White Mountains sold its 50% common stock investment in MSA to the MSA Group for (i) $70.0 million in 9.0% non-voting cumulative perpetual preferred stock of the MSA Group, and (ii) 4.9%, of the common stock of the MSA Group, which was recorded at an initial carrying value of $24.5 million. These transactions resulted in a net after tax realized gain of $8.5 million.

                        

                Effective October 31, 2006, White Mountains accounts for its remaining investment in the MSA Group in accordance with FAS 115. Prior to the sale, White Mountains owned 50% of the total common shares outstanding of MSA and accounted for this investment using the equity method of accounting. The following table provides summary financial amounts recorded by White Mountains under the equity method relating to its investment in MSA common stock:

                Millions

                 

                 

                2006

                 

                2005

                 

                2004

                 

                Amounts recorded by White Mountains under the equity method:

                Investment in MSA common stock

                 

                $

                 

                $

                168.0

                 

                $

                161.6

                 

                Equity in earnings from MSA common stock (1)

                 

                10.3

                 

                5.6

                 

                16.4

                 

                Equity in net unrealized investment gains (losses) from MSA’s investment portfolio (2)

                 

                .3

                 

                (4.0

                )

                1.3

                 

                Millions

                 2007
                 2006
                 2005
                 
                Amounts recorded by White Mountains under the equity method:          
                Investment in MSA common stock $ $ $168.0 
                Equity in earnings from MSA common stock(1)    10.3  5.6 
                Equity in net unrealized investment gains (losses) from MSA's investment portfolio(2)    .3  (4.0)
                  
                 
                 
                 

                (1)
                Equity in earnings amounts are net of taxes of $5.6 million $3.0 million and $1.2$3.0 million for the ten months ended October 31, 2006 and the yearsyear ended December 31, 2005 and 2004, respectively.

                2005.

                (2)
                Recorded directly to shareholders’shareholders' equity (after-tax) as a component of other comprehensive income.

                Delos

                        

                At December 31, 2005 and 2004, White Mountains’ consolidated retained earnings included $59.7 million and $51.0 million of accumulated undistributed earnings of MSA. No dividends were declared or paid by MSA during 2005 and 2004.


                Delos

                On August 3, 2006, White Mountains Re sold its wholly-owned subsidiary, Sirius America, to an investor group led by Lightyear Capital for $138.8 million in cash (See Note 2). As part of the transaction, White Mountains acquired an equity interest of approximately 18% in the acquiring entity, Delos. White Mountains accounts for its investment in Delos under the equity method. For the yearyears ended December 31, 2007 and 2006, White Mountains recorded $1.3 million and $.2 million of equity in earnings from its investment in Delos. White Mountains’Mountains' investment in Delos at December 31, 2007 and 2006 totalled $33.8 million and $32.2 million.

                Montpelier Re

                During the first quarter of 2004, White Mountains sold a portion of its investment in Montpelier Re common shares to third parties. As a result of this sale, as well as changes to the composition of the Board of Directors of both Montpelier Re and White Mountains, White Mountains changed the method of accounting for its remaining common share investment in Montpelier Re as of March 31, 2004 from an equity method investment in an unconsolidated affiliate to a common equity security classified as available for sale and carried at fair value. White Mountains accounts for its warrants in Montpelier Re as derivative instruments and recognizes changes in the fair value of the warrants during a given period in its income statement as a realized gain or loss. (See Note 5 for details of White Mountains’ investment in Montpelier Re as of December 31, 2005).

                White Mountains’ equity in earnings of Montpelier Re was $10.8 million (net of $6.1 million tax) for the year ended December 31, 2004.

                NOTE 15.18. Variable Interest Entities

                Reciprocals

                Reciprocals

                Reciprocals are not-for-profit, policyholder owned insurance carriers organized as unincorporated associations. Each policyholder insured by the reciprocal shares risk with the other policyholders. Policyholders share profits and losses in the same proportion as the amount of insurance purchased but are not subject to additional assessments for losses of the reciprocal.

                        

                OneBeacon has capitalized three reciprocals by loaning money to them in exchange for surplus notes. Principal and interest on the surplus notes are repayable to OneBeacon only with regulatory approval. The obligation to repay principal on the notes is subordinated to all other liabilities including obligations to policyholders and claimants for benefits under insurance policies.

                        

                OneBeacon has no ownership interest in the three reciprocals. However, under the provisions of FIN 46(R), OneBeacon has determined that each of the reciprocals qualify as a VIE. Further, OneBeacon has determined that it is the primary beneficiary and is required to consolidate all three reciprocals.

                        

                In 2002, OneBeacon formed New Jersey Skylands Management LLC to provide management services for a fee to New Jersey Skylands Insurance Association, a reciprocal, and its wholly owned subsidiary New Jersey Skylands Insurance Company (together, “New"New Jersey Skylands Insurance”Insurance"). New Jersey Skylands Insurance was capitalized with a $31.3 million surplus note issued to OneBeacon in 2002. At December 31, 20062007 and 2005,2006, consolidated amounts related to New Jersey Skylands Insurance included total assets of $89.2$106.0 million and $105.6$89.2 million and total liabilities of $113.7$124.4 million and $119.6$113.7 million. At December 31, 2006,2007, the net amount of capital at risk is equal to the surplus note of $31.3 million less the accumulated losses to date of $24.5$18.4 million.


                        

                In 2004, OneBeacon formed Houston General Management Company to provide management services for a fee to another reciprocal, Houston General Insurance Exchange. During 2004, OneBeacon contributed $2.0 million of capital to Houston General Insurance Exchange. In 2005, OneBeacon contributed one of its subsidiaries, Houston General Insurance Company, with assets of $149.4 million and liabilities of $127.6 million, to Houston General Insurance Exchange (together “Houston"Houston General Insurance”Insurance"). Subsequent to the contribution of Houston General Insurance Company, Houston General Insurance Exchange issued a surplus note of $23.7 million to OneBeacon. At December 31, 20062007 and 2005,2006, consolidated amounts related to Houston General Insurance included total assets of $167.2$163.3 million and $187.3$143.5 million and total liabilities of $148.8$174.0 million and $165.3$148.8 million. At December 31, 20062007 the net amount of capital at risk is equal to the surplus note of $23.7 million.


                In 2006, Adirondack AIF, LLC, a wholly owned subsidiary of OneBeacon, entered into an agreement to provide management services for a fee to Adirondack Insurance Exchange (“("Adirondack Insurance”Insurance"), a reciprocal. Adirondack Insurance was capitalized with a $70.7 million surplus note issued to OneBeacon in May 2006. At December 31, 2007 and 2006, consolidated amounts related to Adirondack Insurance included total assets of $241.4 million and $124.8 million and total liabilities of $252.9 million and $130.3 million. At December 31, 2006,2007, the net amount of capital at risk is equal to the surplus note of $70.7 million less the accumulated losses to date of $5.5$11.5 million.

                Pentelia

                        In 2007, White Mountains has made an investment in Pentelia Investment Ltd. ("PIL"), a corporation that invests in insurance-related investment assets. White Mountains has determined that its investment in PIL is a variable interest entity. However, White Mountains is not the primary beneficiary. White Mountains accounts for its interests in PIL as an equity method investment. White Mountains' exposure to loss is limited to the carrying value of its investment in PIL which was $52.4 million at December 31, 2007.

                Prospector Offshore Fund

                        

                White Mountains has determined that the Prospector Offshore Fund, Ltd. (“("the Prospector Fund”Fund") is a VIE for which White Mountains is the primary beneficiary and is required to consolidate the Prospector Fund. At December 31, 20062007 and 2005,2006, White Mountains consolidated total assets of $211.1$207.0 million and $177.3$211.1 million and total liabilities of $70.0$68.8 million and $38.8$70.0 million of the Prospector Fund. In addition, at December 31, 20062007 and 2005,2006, White Mountains recorded a minority interest liability of $82.4$74.4 million and $83.5$82.4 million representing the noncontrolling interests in the Prospector Fund. For the years ended December 31, 20062007 and 2005,2006, White Mountains recorded $5.6$7.1 million and $4.2$5.6 million of minority interest expense related to the Fund. At December 31, 2006, the net amount of capital at risk is equal to White Mountains’Mountains' investment in the Fund of $58.7$63.7 million, which represents White Mountains’Mountains' ownership interest of 41.6%46.1% in the Prospector Fund.

                Tuckerman LP, I

                        

                White Mountains has determined that Tuckerman Limited Partnership, I (“("Tuckerman I”I") is a VIE for which White Mountains is the primary beneficiary and is required to consolidate Tuckerman I. At December 31, 20062007 and 2005,2006, White Mountains consolidated total assets of $35.6$30.7 million and $38.5$35.6 million and total liabilities of $15.1$19.1 million and $12.6$15.1 million of Tuckerman I. In addition, at December 31, 20062007 and 2005,2006, White Mountains recorded a minority interest liability of $3.5$(.4) million and $2.4$3.5 million representing the noncontrolling interests in Tuckerman I. For the years ended December 31, 20062007 and 2005,2006, White Mountains recorded $1.9$.9 million and $1.3$1.9 million of minority interest expense related to Tuckerman I. At December 31, 2006,2007, the net amount of capital at risk is equal to White Mountains’Mountains' investment in Tuckerman I of $17.0$11.1 million, which represents White Mountains’Mountains' ownership interest of 95.9%96.0% in Tuckerman I.

                Tuckerman LP, II

                White Mountains has determined that Tuckerman Limited Partnership, II (“("Tuckerman II”II") is a VIE for which White Mountains is the primary beneficiary and is required to consolidate Tuckerman II. At December 31, 20062007 and 2005,2006, White Mountains consolidated total assets of $65.4$60.6 million and $25.2$65.4 million and total liabilities of $17.4$18.9 million and $4.8$17.4 million. In addition, at December 31, 20062007 and 2005,2006, White Mountains recorded a minority interest liability of $26.7$26.2 million and $10.4$26.7 million representing the noncontrolling interest in Tuckerman II. For the years ended December 31, 20062007 and 2005,2006, White Mountains recorded $3.6 million and $6.7$3.6 million of minority interest expense related to Tuckerman II. At December 31, 2006,2007, the net amount of capital at risk is equal to White Mountains’Mountains' investment in Tuckerman II of $21.3$20.7 million, which represents White Mountains’Mountains' ownership interest of 49.6%49.7% in Tuckerman II.


                NOTE 16.19. Fair Value of Financial Instruments

                        

                SFAS No. 107, “Disclosure"Disclosure about Fair Value of Financial Instruments” (“Instruments" ("SFAS 107”107"), requires disclosure of fair value information of financial instruments. For certain financial instruments where quoted market prices are not available, the fair values of these financial instruments were estimated by discounting future cash flows using current market rates for similar obligations or using quoted market prices. Because considerable judgment is used, these estimates are not necessarily indicative of amounts that could be realized in a current market exchange. SFAS 107 excludes certain financial instruments from disclosure, including insurance contracts, other than financial guarantees and investment contracts. White Mountains carries its financial instruments on its balance sheet at fair value with the exception of its fixed-rate, long-term indebtedness and its mandatorily redeemable preferred stock.


                At December 31, 2006 and 2005, White Mountains’ fixed-rate, long-term indebtedness consisted of its Senior Notes.        The following table summarizes the fair value of White Mountains’ Senior Notes was $692.7 million and $705.4 million, which compared to a carrying value of $698.7 million and $698.5 million, respectively.

                Atfinancial instruments as of December 31, 2006, the fair values of the Berkshire Preferred Stock2007 and the Zenith Preferred Stock were $319.5 million and $20.6 million, respectively, which compared to carrying values of $242.3 million and $20.0 million, respectively. At December 31, 2005, the fair values of the Berkshire Preferred Stock and the Zenith Preferred Stock were $331.5 million and $21.6 million, respectively, which compared to carrying values of $214.0 million and $20.0 million, respectively.2006:

                 
                 December 31, 2007
                 December 31, 2006
                Millions

                 Fair
                Value

                 Carrying
                Value

                 Fair
                Value

                 Carrying
                Value

                Fund American Senior Notes $703.2 $698.9 $692.7 $698.7
                WMRe Senior Notes  398.3  398.9    
                WMRe Preference Shares(1)  219.4  250.0    
                Berkshire Preferred Stock  307.0  278.3  319.5  242.3
                Zenith Preferred Stock      20.6  20.0
                  
                 
                 
                 

                (1)
                WMRe Preference Shares are recorded as minority interest.

                NOTE 17.20. Transactions with Related Persons

                Prospector

                        

                Prospector

                Mr. John Gillespie, a director of the Company, is the founder and Managing Member of Prospector. Prospector serves as a discretionary adviser with respect to specified assets, primarily equity securities, managed by WM Advisors on behalf of White Mountains (including, prior to its IPO, OneBeacon) and other clients of WM Advisors, including the defined benefit and defined contribution plans of OneBeacon.Advisors. Pursuant to an investment management agreement with WM Advisors (the “WMA Agreement”"WMA Agreement"), through March 1, 2006, Prospector charged WM Advisors fees based on the following schedule: 100 basis points on the first $200 million of assets under management; 50 basis points on the next $200 million; and 15 basis points on amounts over $400 million. Effective March 1, 2006, pursuant to an amendment to the WMA Agreement, Prospector charged WM Advisors fees based on the following schedule: 100 basis points on the first $200 million; 50 basis points on the next $200 million; and 25 basis points on amounts over $400 million. At December 31, 2006,2007, Prospector managed approximately $1.2$.9 billion of assets for WM Advisors under this arrangement.

                        

                Effective November 14, 2006, in connection with the OneBeacon Offering, OneBeacon entered into a separate investment management agreement with Prospector pursuant to which Prospector supervises and directs specified assets, primarily equity securities. Pursuant to this investment management agreement (the “OneBeacon Agreement”"OneBeacon Agreement"), Prospector charged OneBeacon fees based on the following schedule: 100 basis points on the first $200 million; 50 basis points on the next $200 million; and 25 basis points on amounts over $400 million. At December 31, 2006,2007, Prospector managed approximately $1.1$1.6 billion of assets for OneBeacon, including the defined benefit and defined contribution plans, under this arrangement.

                        

                During 2006,2007, Prospector earned $9.0$6.7 million in fees pursuant to the WMA Agreement and $.5$5.9 million in fees pursuant to the OneBeacon Agreement.

                        

                Prospector also advises White Mountains on matters including capital management, asset allocation, private equity investments and mergers and acquisitions. Pursuant to a Consulting Agreement for those services, Prospector was granted 9,600 performance shares for the 2008-2010 performance cycle, 8,000 performance shares for the 2007-2009 performance cycle and 8,400 performance shares for the 2006-2008 performance cycle and 7,000 performance shares for the 2005-2007 performance cycle. In accordance with the terms of the Incentive Plan, performance against target governing the performance shares will be confirmed by the Compensation Committee of the Board following the end of each performance cycle and the number of performance shares actually awarded at that time will range from 0% to 200% of the target number granted. Unless and until the Consulting Agreement has been terminated, and subject to the approval of the Compensation Committee, at the beginning of each performance cycle Prospector is to be granted performance shares with a value of approximately $4.5 million. The Compensation Committee establishes the performance target for such performance shares.


                        

                Pursuant to a revenue sharing agreement, Prospector has agreed to pay White Mountains 6% of the revenues in excess of $500,000 of certain of Prospector’sProspector's funds in return for White Mountains having made a founding investment in 1997. White Mountains earned $.7$.8 million during 20062007 under this arrangement.

                        

                At December 31, 2006,2007, White Mountains had $133.1$146.8 million invested in limited partnership investment interests managed by Prospector. This total includes $40.2 million of OneBeacon assets. In addition, Messrs. Barrette and Waters, executive officers and directors of the Company, George Gillespie and John Gillespie, each directors of the Company, and Mr. Campbell an executive officer of the Company, owned limited partnership investment interests managed by Prospector as of such date.

                FSAKeep-Well

                        

                In May 2006,On November 30, 2004, White Mountains completed a significant corporate reorganization, through which ownership of Folksamerica was requiredtransferred to sell its 1% economic interest in Financial Security Assurance Holdings Ltd. (“FSA”) backWhite Mountains Re from Fund American. In order to FSA’s parent, Dexia S.A.effect the reorganization, White Mountains and Fund American entered into or amended certain agreements with respect to the Berkshire Preferred Stock. Under the terms of a Keep-Well Agreement dated November 30, 2004 between White Mountains and Fund American (the "Keep-Well"), at its fair valueWhite Mountains has agreed to return to Fund American up to approximately $1.1 billion, which equals the amount of $56.6 million. Mr. Robert Cochran,net assets transferred out of Fund American as a directorresult of the Company,reorganization, if some or all of that amount is Chairman and CEOrequired by Fund American to meet its obligations to Berkshire under the Berkshire Preferred Stock. Additionally, the Keep-Well limits the aggregate amount of FSA.distributions that White Mountains may make to its shareholders. This distribution limit, which as of December 31, 2007 was $2.4 billion, will increase or decrease by an amount equal to White Mountains' consolidated net income or loss over the remaining life of the agreement. The Keep-Well will expire upon the earlier of when all obligations of the Berkshire Preferred Stock, which is redeemable in May 2008, have been satisfied or when approximately $1.1 billion has been returned to Fund American.


                Other relationships and transactions

                        Mr. Berkowitz is the Managing Member of East Lane LLC, Managing Member of the investment adviser to The Fairholme Fund, and Managing Member of Fairholme Ventures II, LLC. On November 21, 2007, the Company repurchased 7,000 of its common shares owned by the Fairholme Fund and 1,500 of its common shares owned by Fairholme Ventures II, LLC, at the price of $500 per share for a total of $4.3 million. This purchase was made in connection with the Company's share repurchase authorization announced in November, 2006. On November 20, 2007, the closing sales price of the Company's common shares was $505.50.

                Mr. Howard Clark, a director of the Company, is Vice Chairman of Lehman Brothers, Inc. (“Lehman”("Lehman"). Lehman has, from time to time, provided various services to White Mountains including investment banking services, brokerage services, underwriting of debt and equity securities and financial consulting services. During 2006, Lehman served as sole book-running manager for the OneBeacon Offering. Also during 2006, Lehman served as a joint book-running manager for two new revolving credit facilities for White Mountains.

                        

                Mr. George Gillespie, a director of the Company, serves as Special Counsel to Cravath, Swaine & Moore LLP (“("CS&M”&M"). CS&M has been retained by White Mountains from time to time to perform legal services. During 2006, among other services rendered, CS&M acted as White Mountains’Mountains' counsel for the OneBeacon Offering.

                        

                Mr. John Gillespie indirectly through general and limited partnership interests holds a 44% interest in Fund III. Two of the Company’s indirect subsidiaries, OBPP and FSUI, had previously borrowed approximately $8 million and $7 million, respectively, from Fund III in connection with an incentive program sponsored by the State of Connecticut known as the CIR Act. The CIR Act provides for Connecticut income tax credits to be granted for qualifying investments made by approved fund managers. Both loans were repaid in full during 2006. The loans were qualifying investments which generated tax credits to be shared equally between Fund III on the one hand and OBPP and FSUI on the other. As a result of his interest in Fund III, during 2006 Mr. Gillespie generated approximately $.3 million in such tax credits.

                WM Advisors currently leases a building partially owned by Mr. John Gillespie and trusts for the benefit of members of his family (the “Gillespie Trusts”"Gillespie Trusts"). For 2006,2007, the rental payments attributable to Mr. Gillespie’sGillespie's ownership in the building totalled approximately $26,000$17,000 and the rental payments attributable to the Gillespie Trusts’Trusts' ownership in the building totalled approximately $208,000.$137,000. In addition, WM Advisors currently subletssublet a portion of the building it leases from the Gillespie Trusts to Prospector and, for 2006,2007, Prospector paid WM Advisors $102,000.$52,000.

                NOTE 18.21. Commitments and Contingencies

                White Mountains leases certain office space under noncancellable operating leases that expire on various dates through 2010. Rental expense for all of White Mountains’Mountains' locations was approximately $49.1$54.8 million, $49.1 million and $46.5$49.1 million for the years ended December 31, 2007, 2006 2005 and 2004.2005. White Mountains also has various other lease obligations that are immaterial in the aggregate.

                        

                White Mountains’Mountains' future annual minimum rental payments required under noncancellable leases, which are primarily for office space, are $43.1$31.8 million, $37.5$25.1 million, $21.4 million, $13.7$20.0 million and $33.0$49.4 million for 2007, 2008, 2009, 2010 and 2011 and thereafter, respectively.


                Assigned Risks

                        

                As a condition of its license to do business in certain states, White Mountains’Mountains' insurance operations are required to participate in mandatory shared market mechanisms. Each state dictates the types of insurance and the level of coverage that must be provided. The total amount of business an insurer is required to accept is based on its market share of voluntary business in the state. In certain cases, White Mountains is obligated to write business from mandatory shared market mechanisms at some time in the future based on the market share of voluntary policies it is currently writing. Underwriting results related to assigned risk plans are typically adverse and are not subject to the predictability associated with White Mountains’Mountains' voluntarily written business.

                        

                Under existing guaranty fund laws in all states, insurers licensed to do business in those states can be assessed for certain obligations of insolvent insurance companies to policyholders and claimants. White Mountains accrues any significant insolvencies when the loss is probable and the assessment amount can be reasonably estimated. The actual amount of such assessments will depend upon the final outcome of rehabilitation proceedings and will be paid over several years. At December 31, 2006,2007, the reserve for such assessments totalled $17.3$16.6 million.

                Legal Contingencies

                        

                White Mountains, and the insurance and reinsurance industry in general, are subject to litigation and arbitration in the normal course of business. Other than those items listed below, White Mountains was not a party to any material litigation or arbitration other than as routinely encountered in claims activity, none of which is expected by management to have a material adverse effect on its financial condition and/or cash flows.


                On November 1, 2001,OneBeacon

                        In August 2004, OneBeacon transferredasserted claims against Liberty Mutual in the Court of Common Pleas in Philadelphia, Pennsylvania (the "Court") for breach of contract and negligence with respect to agreements with Liberty Mutual (the "Liberty Agreements"). The portion of the contract claim relating to OBIC was submitted to arbitration and the Court stayed the remaining claims, including OneBeacon's claims on behalf of its regional agency business, agents and operationsother insurance subsidiaries that were signatories to the Liberty Agreements, pending resolution of the arbitration. In August 2007, the arbitration panel issued an award in 42 states andfavor of OneBeacon on the portion of the breach of contract claim submitted to it finding that Liberty Mutual breached the Liberty Agreements. The panel awarded OneBeacon $4.5 million plus interest.

                        Subsequent to the award, in September 2007, Liberty Mutual filed petitions in the U.S. District Court for the District of ColumbiaMassachusetts ("USDC") and the Court to vacate the arbitral award and dismiss or arbitrate the remaining Court claims. In October 2007, OneBeacon (on behalf of its other insurance subsidiaries that were signatories to the Liberty Agreements) filed suit against Liberty Mutual Insurance Group (“in Suffolk County Superior Court in Massachusetts to recover damages caused by Liberty Mutual”) pursuant toMutual's claims conduct. Concurrently, a renewal rights agreement (the “Liberty Agreement”), which expireddemand for arbitration was served on October 31, 2003. OneBeacon is in a dispute with Liberty Mutual over certain coststo preserve the rights and interests of OneBeacon (on behalf of the same subsidiaries). In December 2007, the Court confirmed the arbitral award. Liberty Mutual claims it incurredhas appealed the Court's confirmation of the award to the Pennsylvania Superior Court. Liberty Mutual's motion to vacate the award is still pending in connection withUSDC. Resolution of the Liberty Agreement.outstanding motions is expected in the near future.

                        In January 2005, Liberty Mutual asserts that these costs are partinitiated arbitration against OneBeacon (the "ULAE Arbitration") seeking payment of unallocated loss adjustment expenses (“ULAE”) due Liberty Mutualapproximately $67 million relating to claims-related services under the Liberty Agreement. Liberty Mutual further asserts that ULAE on charges previously billed to and settled by OneBeacon since the inception of the Liberty Agreement should be retroactively recast in addition to changing the calculation of ULAE charges for the period not yet settled. OneBeacon believes that the recast charges, which are significantly higher than prior ULAE calculations, and the calculation of ULAE charges for the period not yet settled are inconsistent with the terms of the Liberty Agreement and with standard industry definitions of ULAE. The amount of additional ULAE Liberty Mutual claims that it incurred under the Liberty Agreement totals approximately $68.4 million. Liberty Mutual has netted amounts billed under the ULAE dispute against amounts otherwise payable to OneBeacon. As of December 31, 2006, OneBeacon has recorded in its loss and LAE reserves an estimate of ULAE expenses due Liberty Mutual on a basis that it believes is consistent with the terms of the Liberty Agreement and with standard industry definitions of ULAE. In January 2006, Liberty Mutual initiated an arbitration proceeding against OneBeacon with respect to this dispute (“the ULAE Arbitration”). The initial organizational meeting on the ULAE Arbitration was held in February 2007 and the final hearing is scheduled for April 2008.

                Agreements. In September 2006, OneBeacon initiated an arbitration against Liberty Mutual (and Peerless Insurance Company)(the "Reinsurance Arbitration") seeking payment of approximately $57 million relating to reinsurance premiums, ceding commissions, recoveries and commutations due to OneBeacon fromarrangements under the Liberty Mutual pursuant to the terms and conditions of the rewritten indemnity reinsurance agreement. To date, Liberty Mutual has refused to pay, asserting that it is entitled to an offset against the ULAE amounts disputed by OneBeacon and subject to the ULAE Arbitration. The parties are in the process of selecting an arbitration panel and the dates for the arbitration hearing have not yet been scheduled.Agreements. In January 2007, this arbitrationthe Reinsurance Arbitration was consolidated into the ULAE arbitration.

                OneBeacon Insurance Group LLC and OBIC also have asserted claims against Liberty Mutual (and Peerless Insurance Company)Arbitration. In July 2007, the reinsurance payment issues in the CourtReinsurance Arbitration were favorably resolved. Arbitration hearings regarding ULAE issues and damages related thereto are scheduled to occur in the second and third quarters of Common Pleas for Philadelphia County, Pennsylvania, or the Court, in which they assert that Liberty Mutual (and Peerless Insurance Company) breached the Pre-Closing Administrative Services Agreement, handled claims files negligently, breached fiduciary duties and were unjustly enriched. The Court has stayed those claims pending the resolution2008, respectively.

                        As of the arbitration between OBIC and Liberty Mutual for breach of contract. The arbitration hearing commenced in November 2006 and will continue in May 2007.

                December 31, 2007, OneBeacon believes that its loss and LAE reserves are sufficient to cover reasonably anticipated outcomes of all related disputes with Liberty Mutual.

                Esurance

                        On November 29, 2007, Dennis J. Czerwinski filed a lawsuit against Esurance Property and Casualty Insurance Company and Esurance Insurance Company in the U.S. District Court, Eastern District of Wisconsin, Milwaukee Division alleging violations of the Fair Credit Reporting Act ("FCRA") and seeking class certification. Czerwinski alleged that Esurance's accessing of consumer credit reports in connection with prescreened offers of insurance violated the FCRA because the offers allegedly did not qualify as firm offers of insurance. The proposed class consists of all persons in the United States to whom Esurance sent a solicitation in the form of the one mailed to Czerwinski after February 1, 2006 through the date a class is certified. Esurance is disputing the allegations and intends to vigorously defend this action.


                NOTE 22. Subsequent Events

                Purchase of Helicon

                        On January 7, 2008, White Mountains Re acquired Helicon Re Holdings, Ltd. for approximately $150.2 million. Helicon Re Holdings Ltd., parent of Helicon Reinsurance Company Ltd., had GAAP shareholders' equity of approximately $154.7 million as of December 31, 2007. In 2006 and 2007, Helicon Re provided quota share retrocessional coverage to White Mountains Re. White Mountains Re did not renew the quota share agreement for 2008 and Helicon was put into runoff.

                Investment in Answer Financial

                        On January 22, 2008, White Mountains acquired 42% of Answer Financial Inc.'s outstanding debt and equity for $30.2 million. Answer Financial is an online personal insurance agency, offering consumers the ability to compare quotes for automobile and homeowners insurance and to purchase coverage from multiple insurance carriers. In conjunction with this transaction, Answer Financial will be completing a restructuring.

                OneBeacon Special Dividend

                        On January 31, 2008, OneBeacon Ltd. declared a $200.0 million special dividend, of which White Mountains will receive a portion based on its ownership percentage on March 17, 2008. As of December 31, 2007, White Mountains owned 72.9% of OneBeacon Ltd.'s outstanding shares.



                MANAGEMENT’SMANAGEMENT'S RESPONSIBILITY FOR FINANCIAL STATEMENTS

                        

                Management is responsible for the preparation and fair presentation of the financial statements included in this report. The financial statements have been prepared in conformity with GAAP in the United States. The preparation of financial statements in conformity with GAAP requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates.

                        

                The Audit Committee of the Board, which is comprised entirely of independent, qualified directors, is responsible for the oversight of our accounting policies, financial reporting and internal control including the appointment and compensation of our independent registered public accounting firm. The Audit Committee meets periodically with management, our independent registered public accounting firm and our internal auditors to ensure they are carrying out their responsibilities. The Audit Committee is also responsible for performing an oversight role by reviewing our financial reports. Our independent registered public accounting firm and internal auditors have full and unlimited access to the Audit Committee, with or without management present, to discuss the adequacy of internal control over financial reporting and any other matters which they believe should be brought to their attention.


                MANAGEMENT’SMANAGEMENT'S ANNUAL REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING

                        

                Management is responsible for establishing and maintaining adequate internal control over financial reporting as defined in Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934. There are inherent limitations in the effectiveness of any internal control over financial reporting, including the possibility of human error and the circumvention or overriding of internal control. Accordingly, even effective internal control over financial reporting can provide only reasonable assurance with respect to financial statement preparation. Further, an effective internal control environment as of a point in time may become inadequate in the future because of changes in conditions, or deterioration in the degree of compliance with the policies and procedures.

                        

                We assessed the effectiveness of White Mountains’Mountains' internal control over financial reporting as of December 31, 2006. Our assessment did not include an assessment of the internal control over financial reporting for Mutual Service Casualty Insurance Company which was acquired on December 22, 2006. This acquisition represents less than 1% of White Mountains’ total assets as of December 31, 2006 and less than 1% of White Mountains’ total revenue for the year ended December 31, 2006.2007. In making our assessment, we used the criteria set forth by the Committee of Sponsoring Organizations of the Treadway Commission (COSO) in Internal Control-Integrated Framework. Based on this assessment, we have concluded that White Mountains maintained effective internal control over financial reporting as of December 31, 2006.2007.

                        

                PricewaterhouseCoopers LLP, the Company’sCompany's independent registered public accounting firm, has audited management’s assessment of the effectiveness of White Mountains’Mountains' internal control over financial reporting as of December 31, 20062007 as stated in their report which appears on pages F-65 through F-66.

                February 28, 2007

                page F-67.

                /s/ Raymond Barrette

                February 28, 2008

                /s/ David T. Foy


                /s/  
                RAYMOND BARRETTE      


                Chairman and CEO


                (Principal Executive Officer)





                /s/  
                DAVID T. FOY      
                Executive Vice President and CFO

                (Principal Executive Officer)


                (Principal Financial Officer)



                Report of Independent Registered Public Accounting Firm

                To the Board of Directors and Shareholders of White Mountains Insurance Group, Ltd.:

                We have completed integrated audits of White Mountains Insurance Group, Ltd.’s consolidated financial statements and of its internal control over financial reporting as of December 31, 2006 in accordance with the standards of the Public Company Accounting Oversight Board (United States). Our opinions, based on our audits, are presented below.

                Consolidated financial statements and financial statement schedules

                In our opinion, the consolidated financial statements listed in the accompanying index present fairly, in all material respects, the financial position of White Mountains Insurance Group, Ltd. and its subsidiaries at December 31, 20062007 and 2005,2006, and the results of their operations and their cash flows for each of the three years in the period ended December 31, 20062007 in conformity with accounting principles generally accepted in the United States of America. In addition, in our opinion, the financial statement schedules listed in the accompanying index presentpresents fairly, in all material respects, the information set forth therein when read in conjunction with the related consolidated financial statements. TheseAlso in our opinion, the Company maintained, in all material respects, effective internal control over financial statements and financial statement schedules arereporting as of December 31, 2007, based on criteria established in Internal Control—Integrated Framework issued by the responsibilityCommittee of Sponsoring Organizations of the Company’s management. Our responsibilityTreadway Commission (COSO). The Company's management is to express an opinion onresponsible for these financial statements and financial statement schedules, for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting, included in the accompanying Management's Annual Report on Internal Control Over Financial Reporting. Our responsibility is to express opinions on these financial statements, on the financial statement schedules, and on the Company's internal control over financial reporting based on our integrated audits. We conducted our audits of these statements in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the auditaudits to obtain reasonable assurance about whether the financial statements are free of material misstatement. An auditmisstatement and whether effective internal control over financial reporting was maintained in all material respects. Our audits of the financial statements includesincluded examining, on a test basis, evidence supporting the amounts and disclosures in the financial statements, assessing the accounting principles used and significant estimates made by management, and evaluating the overall financial statement presentation. Our audit of internal control over financial reporting included obtaining an understanding of internal control over financial reporting, assessing the risk that a material weakness exists, and testing and evaluating the design and operating effectiveness of internal control based on the assessed risk. Our audits also included performing such other procedures as we considered necessary in the circumstances. We believe that our audits provide a reasonable basis for our opinion.opinions.

                Internal control over financial reporting

                Also, in our opinion, management’s assessment, included in Management’s Annual Report on Internal Control Over Financial Reporting appearing under item 9A which appears on page F-64, that the Company maintained effective internal control over financial reporting as of December 31, 2006 based on criteria established in Internal Control - Integrated Framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (COSO), is fairly stated, in all material respects, based on those criteria. Furthermore, in our opinion, the Company maintained, in all material respects, effective internal control over financial reporting as of December 31, 2006, based on criteria established in Internal Control - Integrated Framework issued by the COSO. The Company’s management is responsible for maintaining effective internal control over financial reporting and for its assessment of the effectiveness of internal control over financial reporting. Our responsibility is to express opinions on management’s assessment and on the effectiveness of the Company’s internal control over financial reporting based on our audit. We conducted our audit of internal control over financial reporting in accordance with the standards of the Public Company Accounting Oversight Board (United States). Those standards require that we plan and perform the audit to obtain reasonable assurance about whether effective internal control over financial reporting was maintained in all material respects. An audit of internal control over financial reporting includes obtaining an understanding of internal control over financial reporting, evaluating management’s assessment, testing and evaluating the design and operating effectiveness of internal control, and performing such otherprocedures as we consider necessary in the circumstances. We believe that our audit provides a reasonable basis for our opinions.


                A company’scompany's internal control over financial reporting is a process designed to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with generally accepted accounting principles. A company’scompany's internal control over financial reporting includes those policies and procedures that (i) pertain to the maintenance of records that, in reasonable detail, accurately and fairly reflect the transactions and dispositions of the assets of the company; (ii) provide reasonable assurance that transactions are recorded as necessary to permit preparation of financial statements in accordance with generally accepted accounting principles, and that receipts and expenditures of the company are being made only in accordance with authorizations of management and directors of the company; and (iii) provide reasonable assurance regarding prevention or timely detection of unauthorized acquisition, use, or disposition of the company’scompany's assets that could have a material effect on the financial statements.

                Because of its inherent limitations, internal control over financial reporting may not prevent or detect misstatements.Also, projections of any evaluation of effectiveness to future periods are subject to the risk that controls may becomeinadequate because of changes in conditions, or that the degree of compliance with the policies or procedures may deteriorate.

                As described in Management’s Annual Report on Internal Control Over Financial Reporting, management has excluded Mutual Service Casualty Insurance Company from its assessment of internal control over financial reporting as of December 31, 2006 because it was acquired by the Company in purchase business combinations during 2006. As a result, we have also excluded Mutual Service Casualty Insurance Company from our audit of internal control over financial reporting. Mutual Service Casualty Insurance Company is a wholly-owned subsidiary whose total assets and total revenues represent less than 1% of the related consolidated financial statement amounts as of and for the year ended December 31, 2006.

                /s/ PricewaterhouseCoopers LLP

                Boston, Massachusetts
                February 28, 2007


                /s/ PricewaterhouseCoopers
                New York, New York
                February 29, 2008


                SELECTED QUARTERLY FINANCIAL DATA

                (Unaudited)

                        Selected quarterly financial data for 20062007 and 20052006 is shown in the following table. The quarterly financial data includes, in the opinion of management, all recurring adjustments necessary for a fair presentation of the results of operations for the interim periods.

                 

                2006 Three Months Ended

                 

                2005 Three Months Ended

                 


                 2007 Three Months Ended
                 2006 Three Months Ended
                 
                Millions, except per share amounts

                Millions, except per share amounts

                 

                 

                Dec. 31

                 

                Sept. 30

                 

                June 30

                 

                Mar. 31

                 

                Dec. 31

                 

                Sept. 30

                 

                June 30

                 

                Mar. 31

                 

                Dec. 31
                 Sept. 30
                 June 30
                 Mar. 31
                 Dec. 31
                 Sept. 30
                 June 30
                 Mar. 31
                 

                Revenues

                 

                $

                1,349.3

                 

                $

                1,186.2

                 

                $

                1,200.9

                 

                $

                1,057.8

                 

                $

                1,058.1

                 

                $

                1,177.6

                 

                $

                1,170.9

                 

                $

                1,225.3

                 

                Revenues $1,201.7 $1,155.4 $1,210.6 $1,166.1 $1,349.3 $1,186.2 $1,200.9 $1,057.8 

                Expenses

                 

                1,036.4

                 

                957.7

                 

                1,129.3

                 

                941.0

                 

                1,044.4

                 

                1,306.4

                 

                974.9

                 

                1,001.0

                 

                Expenses 1,019.8 963.9 1,034.4 1,034.2 1,036.4 957.7 1,129.3 941.0 
                 
                 
                 
                 
                 
                 
                 
                 
                 

                Pre-tax earnings (loss)

                 

                312.9

                 

                228.5

                 

                71.6

                 

                116.8

                 

                13.7

                 

                (128.8

                )

                196.0

                 

                224.3

                 

                Pre-tax earnings (loss) 181.9 191.5 176.2 131.9 312.9 228.5 71.6 116.8 

                Tax benefit (provision)

                 

                (32.0

                )

                (69.3

                )

                29.3

                 

                (26.9

                )

                19.6

                 

                55.6

                 

                (55.4

                )

                (56.3

                )

                Tax benefit (provision) (59.2) (64.3) (55.8) (31.2) (32.0) (69.3) 29.3 (26.9)

                Minority interest in consolidated subsidiaries

                 

                (10.5

                )

                (2.7

                )

                0.1

                 

                (2.9

                )

                (5.9

                )

                (2.0

                )

                (2.9

                )

                (1.4

                )

                Minority interest in consolidated subsidiaries (23.6) (24.0) (26.4) (19.0) (10.5) (2.7) .1 (2.9)

                Equity in earnings of unconsolidated affiliates

                 

                7.5

                 

                5.6

                 

                14.8

                 

                9.0

                 

                5.9

                 

                8.9

                 

                9.1

                 

                9.7

                 

                Equity in earnings of unconsolidated affiliates 2.1 8.2 8.6 10.5 7.5 5.6 14.8 9.0 
                 
                 
                 
                 
                 
                 
                 
                 
                 

                Income (loss) before extraordinary items

                 

                $

                277.9

                 

                $

                162.1

                 

                $

                115.8

                 

                $

                96.0

                 

                $

                33.3

                 

                $

                (66.3

                )

                $

                146.8

                 

                $

                176.3

                 

                Income (loss) before extraordinary items $101.2 $111.4 $102.6 $92.2 $277.9 $162.1 $115.8 $96.0 
                 
                 
                 
                 
                 
                 
                 
                 
                 

                Income (loss) before extraordinary items
                per share:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 


                Income (loss) before extraordinary items per share:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Basic

                 

                $

                60.52

                 

                $

                15.05

                 

                $

                10.75

                 

                $

                8.92

                 

                $

                3.10

                 

                $

                (6.16

                )

                $

                13.64

                 

                $

                16.38

                 

                Diluted

                 

                60.33

                 

                15.01

                 

                10.72

                 

                8.89

                 

                2.82

                 

                (6.16

                )

                13.64

                 

                16.24

                 

                Fully converted tangible book value per share

                 

                $

                406.00

                 

                $

                373.33

                 

                $

                355.16

                 

                $

                352.01

                 

                $

                342.51

                 

                $

                345.02

                 

                $

                359.11

                 

                $

                347.89

                 

                Basic $9.56 $10.33 $9.51 $8.56 $60.52 $15.05 $10.75 $8.92 
                Diluted 9.55 10.32 9.49 8.54 60.33 15.01 10.72 8.89 
                 
                 
                 
                 
                 
                 
                 
                 
                 
                Fully diluted tangible book value per share $444.47 $435.45 $421.83 $414.61 $406.0 $373.33 $355.16 $352.01 
                 
                 
                 
                 
                 
                 
                 
                 
                 

                F-67




                SCHEDULE I


                WHITE MOUNTAINS INSURANCE GROUP, LTD.



                SUMMARY OF INVESTMENTS — INVESTMENTS—OTHER THAN
                INVESTMENTS IN RELATED PARTIES

                At December 31, 20062007

                 

                 

                 

                 

                Carrying

                 

                Fair

                 

                Millions

                 

                Cost

                 

                Value

                 

                Value

                 

                Fixed maturities (1):

                 

                 

                 

                 

                 

                 

                 

                Bonds:

                 

                 

                 

                 

                 

                 

                 

                U.S. Government and government agencies and authorities (2)

                 

                $

                1,956.3

                 

                $

                1,949.4

                 

                $

                1,948.4

                 

                Corporate bonds and asset-backed securities

                 

                4,947.9

                 

                4,977.1

                 

                4,977.1

                 

                States, municipalities and political subdivisions

                 

                15.5

                 

                16.0

                 

                16.0

                 

                Convertibles and bonds with warrants attached

                 

                429.5

                 

                429.5

                 

                429.5

                 

                Foreign governments

                 

                657.2

                 

                708.4

                 

                708.4

                 

                Redeemable preferred stocks

                 

                111.5

                 

                136.1

                 

                136.1

                 

                Total fixed maturities

                 

                8,117.9

                 

                8,216.5

                 

                8,215.5

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Short-term investments

                 

                1,378.8

                 

                1,378.8

                 

                1,378.8

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Common equity securities:

                 

                 

                 

                 

                 

                 

                 

                Banks, trust and insurance companies

                 

                197.5

                 

                232.2

                 

                232.2

                 

                Public utilities

                 

                34.2

                 

                64.4

                 

                64.4

                 

                Industrial, miscellaneous and other

                 

                740.3

                 

                916.0

                 

                916.0

                 

                Total common equity securities

                 

                972.0

                 

                1,212.6

                 

                1,212.6

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Other investments

                 

                467.1

                 

                524.8

                 

                524.8

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Total investments

                 

                $

                10,935.8

                 

                $

                11,332.7

                 

                $

                11,331.7

                 

                Millions

                 Cost
                 Carrying
                Value

                 Fair
                Value

                Fixed maturities(1):         
                 Bonds:         
                  U.S. Government and government agencies and authorities $1,556.5 $1,585.3 $1,586.7
                  Corporate bonds and asset-backed securities(2)  4,978.4  5,029.3  5,029.3
                  States, municipalities and political subdivisions  11.9  12.4  12.4
                  Convertibles and bonds with warrants attached  484.3  490.6  490.6
                  Foreign governments  792.3  876.3  876.3
                  Redeemable preferred stocks  159.5  173.8  173.8
                  
                 
                 
                 Total fixed maturities  7,982.9  8,167.7  8,169.1
                  
                 
                 
                Short-term investments  1,327.3  1,327.3  1,327.3

                Common equity securities:

                 

                 

                 

                 

                 

                 

                 

                 

                 
                  Banks, trust and insurance companies  228.6  238.0  238.0
                  Public utilities  44.0  61.3  61.3
                  Industrial, miscellaneous and other  1,061.3  1,251.4  1,251.4
                  
                 
                 
                 Total common equity securities  1,333.9  1,550.7  1,550.7

                Other investments

                 

                 

                539.2

                 

                 

                603.3

                 

                 

                603.3
                  
                 
                 
                  Total investments $11,183.3 $11,649.0 $11,650.4
                  
                 
                 

                (1)
                White Mountains’Mountains' portfolio of fixed maturity investments held for general investment purposes are classified as available for sale and are reported at fair value at December 31, 2006.2007. White Mountains’Mountains' portfolio of fixed maturity investments held in the segregated trust accountsaccount are classified at held to maturity and are reported at amortized cost

                cost.

                (2)
                Includes mortgage-backed securities issued by GNMA, FNMA and FHLMC.

                FS-1





                SCHEDULE II

                WHITE MOUNTAINS INSURANCE GROUP, LTD.
                (Registrant Only)

                CONDENSED FINANCIAL INFORMATION OF THE REGISTRANT

                CONDENSED BALANCE SHEETS

                 
                 December 31,
                Millions

                 2007
                 2006
                Assets:      
                 Fixed maturity investments, at fair value $19.0 $194.3
                 Short-term investments, at amortized cost  5.2  85.6
                 Other assets  17.5  81.1
                 Investments in consolidated and unconsolidated affiliates  4,974.5  4,486.2
                  
                 
                  Total assets $5,016.2 $4,847.2
                  
                 

                Liabilities:

                 

                 

                 

                 

                 

                 
                 Long-term debt $ $320.0
                 Accounts payable and other liabilities  302.8  71.9
                  
                 
                  Total liabilities  302.8  391.9
                Common shareholders' equity  4,713.4  4,455.3
                  
                 
                  Total liabilities and common shareholders' equity $5,016.2 $4,847.2
                  
                 

                 

                 

                December 31,

                 

                Millions

                 

                2006

                 

                2005

                 

                Assets:

                 

                 

                 

                 

                 

                Fixed maturity investments, at fair value

                 

                $

                194.3

                 

                $

                193.5

                 

                Short-term investments, at amortized cost

                 

                85.6

                 

                .4

                 

                Other assets

                 

                81.1

                 

                4.6

                 

                Investments in consolidated and unconsolidated affiliates

                 

                4,486.2

                 

                3,669.7

                 

                Total assets

                 

                $

                4,847.2

                 

                $

                3,868.2

                 

                Liabilities:

                 

                 

                 

                 

                 

                Long-term debt

                 

                $

                320.0

                 

                $

                 

                Accounts payable and other liabilities

                 

                71.9

                 

                35.0

                 

                Total liabilities

                 

                391.9

                 

                35.0

                 

                Common shareholders’ equity

                 

                4,455.3

                 

                3,833.2

                 

                Total liabilities, convertible preference shares and common shareholders’ equity

                 

                $

                4,847.2

                 

                $

                3,868.2

                 


                CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME

                 

                 

                Year Ended December 31,

                 

                Millions

                 

                2006

                 

                2005

                 

                2004

                 

                Revenues (including realized gains and losses)

                 

                $

                22.9

                 

                $

                47.1

                 

                $

                3.7

                 

                Expenses

                 

                41.1

                 

                1.1

                 

                65.3

                 

                Pre-tax income (loss)

                 

                (18.2

                )

                46.0

                 

                (61.6

                )

                Income tax benefit (provision)

                 

                (2.6

                )

                (.6

                )

                9.3

                 

                Net income (loss)

                 

                (20.8

                )

                45.4

                 

                (52.3

                )

                Earnings from consolidated affiliates

                 

                694.0

                 

                244.7

                 

                430.3

                 

                Excess of fair value of acquired net assets over cost

                 

                 

                 

                40.7

                 

                Consolidated net income

                 

                673.2

                 

                290.1

                 

                418.7

                 

                Other comprehensive net income items, after-tax

                 

                32.9

                 

                (254.1

                )

                176.5

                 

                Consolidated comprehensive net income

                 

                $

                706.1

                 

                $

                36.0

                 

                $

                595.2

                 

                Computation of net income available to common shareholders:

                 

                 

                 

                 

                 

                 

                 

                Consolidated net income

                 

                $

                673.2

                 

                $

                290.1

                 

                $

                418.7

                 

                Redemption value adjustment — Convertible Preference Shares

                 

                 

                 

                 

                Net income available to common shareholders

                 

                $

                673.2

                 

                $

                290.1

                 

                $

                418.7

                 

                 
                 Year Ended December 31,
                 
                Millions

                 
                 2007
                 2006
                 2005
                 
                Revenues (including realized gains and losses) $.2 $22.9 $47.1 
                Expenses  41.7  41.1  1.1 
                  
                 
                 
                 
                Pre-tax income (loss)  (41.5) (18.2) 46.0 
                Income tax benefit (provision)  1.6  (2.6) (.6)
                  
                 
                 
                 
                Net income (loss)  (39.9) (20.8) 45.4 
                Earnings from consolidated affiliates  447.3  694.0  244.7 
                  
                 
                 
                 
                Consolidated net income  407.4  673.2  290.1 
                Other comprehensive net income items, after-tax  71.9  32.9  (254.1)
                  
                 
                 
                 
                Consolidated comprehensive net income $479.3 $706.1 $36.0 
                  
                 
                 
                 
                Computation of net income available to common shareholders:          
                Net income available to common shareholders $407.4 $673.2 $290.1 
                  
                 
                 
                 

                FS-2




                WHITE MOUNTAINS INSURANCE GROUP, LTD.
                (Registrant Only)

                CONDENSED STATEMENTS OF CASH FLOWS

                 

                 

                Year Ended December 31,

                 

                Millions

                 

                2006

                 

                2005

                 

                2004

                 

                Net income

                 

                $

                673.2

                 

                $

                290.1

                 

                $

                418.7

                 

                Charges (credits) to reconcile net income to net cash from operations:

                 

                 

                 

                 

                 

                 

                 

                Excess of fair value of acquired net assets over cost

                 

                 

                 

                (40.7

                )

                Net realized gains on sales of investments

                 

                (8.6

                )

                (8.8

                )

                (1.9

                )

                Undistributed current earnings from consolidated subsidiaries

                 

                (694.0

                )

                (209.7

                )

                (420.1

                )

                Net Federal income tax receipts

                 

                 

                11.1

                 

                 

                Net change in other assets and other liabilities

                 

                15.4

                 

                (64.0

                )

                (7.8

                )

                Net cash (used for) provided from operations

                 

                (14.0

                )

                18.7

                 

                (51.8

                )

                Cash flows from investing activities:

                 

                 

                 

                 

                 

                 

                 

                Net (increase) decrease in short-term investments

                 

                (85.2

                )

                15.8

                 

                (5.1

                )

                Purchases of investment securities

                 

                (243.2

                )

                (99.3

                )

                (242.1

                )

                Sales and maturities of investment securities

                 

                158.8

                 

                149.9

                 

                 

                Net change in unsettled investment purchases and sales

                 

                8.1

                 

                 

                 

                Net cash (used for) provided from investing activities

                 

                (161.5

                )

                66.4

                 

                (247.2

                )

                Cash flows from financing activities:

                 

                 

                 

                 

                 

                 

                 

                Issuance of debt

                 

                460.0

                 

                 

                 

                Repayment of debt

                 

                (140.0

                )

                 

                 

                Issuance of debt to affiliates

                 

                (448.7

                )

                 

                 

                Repayment of debt from affiliates

                 

                477.3

                 

                 

                 

                Contributions to affiliates

                 

                (87.5

                )

                 

                 

                Proceeds from issuances of common shares

                 

                .6

                 

                1.1

                 

                307.8

                 

                Dividends paid on common shares

                 

                (86.2

                )

                (86.2

                )

                (9.1

                )

                Net cash provided from (used for) financing activities

                 

                175.5

                 

                (85.1

                )

                298.7

                 

                Net decrease in cash during the year

                 

                 

                 

                (.3

                )

                Cash balance at beginning of year

                 

                 

                 

                .3

                 

                Cash balance at end of year

                 

                $

                 

                $

                 

                $

                 

                 
                 Year Ended December 31,
                 
                Millions

                 
                 2007
                 2006
                 2005
                 
                Net income $407.4 $673.2 $290.1 
                Charges (credits) to reconcile net income to net cash from operations:          
                 Net realized gains on sales of investments  (8.0) (8.6) (8.8)
                 Undistributed current earnings from subsidiaries  (447.2) (694.0) (209.7)
                 Dividends received from subsidiaries  2.7     
                 Net Federal income tax receipts  6.8    11.1 
                 Net change in other assets and other liabilities  (5.0) 15.4  (64.0)
                  
                 
                 
                 
                Net cash (used for) provided from operations  (43.3) (14.0) 18.7 
                  
                 
                 
                 

                Cash flows from investing activities:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 Net decrease (increase) in short-term investments  80.4  (85.2) 15.8 
                 Purchases of investment securities  (54.9) (243.2) (99.3)
                 Sales and maturities of investment securities  312.9  158.8  149.9 
                 Issuance of debt from (to) subsidiaries(1)  315.0  (448.7)  
                 Repayment of debt (to) from subsidiaries(1)  (50.0) 477.3   
                 Contributions to subsidiaries(1)    (87.5)  
                 Net change in unsettled investment purchases and sales  (8.1) 8.1   
                  
                 
                 
                 
                Net cash provided from (used for) investing activities  595.3  (220.4) 66.4 
                  
                 
                 
                 

                Cash flows from financing activities:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 Issuance of debt    460.0   
                 Repayment of debt  (320.0) (140.0)  
                 Proceeds from issuances of common shares  2.2  .6  1.1 
                 Repurchases and retirement of common shares  (148.0)    
                 Dividends paid on common shares  (86.2) (86.2) (86.2)
                  
                 
                 
                 
                Net cash (used for) provided from financing activities  (552.0) 234.4  (85.1)
                  
                 
                 
                 
                Net decrease in cash during the year       
                Cash balance at beginning of year       
                  
                 
                 
                 
                Cash balance at end of year $ $ $ 
                  
                 
                 
                 

                (1)
                Contributions and loans to/from subsidiaries, which were previously reported as a financing activity, have been classified as an investing activity beginning in 2007, with conforming changes to 2006.

                FS-3





                SCHEDULE III


                WHITE MOUNTAINS INSURANCE GROUP, LTD.

                SUPPLEMENTARY INSURANCE INFORMATION

                (Millions)
                (Millions)

                Column A

                 

                Column B

                 

                Column C

                 

                Column D

                 

                Column E

                 

                Column F

                 

                Column G

                 

                Column H

                 

                Column I

                 

                Column J

                 

                Column K

                 

                 

                 

                 

                 

                Future policy

                 

                 

                 

                Other

                 

                 

                 

                 

                 

                Benefits,

                 

                Amortization

                 

                 

                 

                 

                 

                 

                 

                 

                 

                benefits,

                 

                 

                 

                policy

                 

                 

                 

                 

                 

                claims,

                 

                of deferred

                 

                 

                 

                 

                 

                 

                 

                Deferred

                 

                losses, claims

                 

                 

                 

                claims and

                 

                 

                 

                Net

                 

                losses, and

                 

                policy

                 

                Other

                 

                 

                 

                 

                 

                acquisition

                 

                and loss

                 

                Unearned

                 

                benefits

                 

                Premiums

                 

                investment

                 

                settlement

                 

                acquisition

                 

                operating

                 

                Premiums

                 

                Segment

                 

                costs

                 

                expenses

                 

                premiums

                 

                payable

                 

                earned

                 

                income (1)

                 

                expenses

                 

                costs

                 

                expenses

                 

                written

                 

                Years ended:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                December 31, 2006:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                OneBeacon

                 

                $

                183.8

                 

                $

                4,837.7

                 

                $

                985.2

                 

                $

                 

                $

                1,944.0

                 

                $

                176.1

                 

                $

                1,180.4

                 

                $

                332.2

                 

                $

                360.1

                 

                $

                1,957.6

                 

                WM Re

                 

                99.8

                 

                3,708.8

                 

                431.6

                 

                 

                1,241.2

                 

                182.7

                 

                884.6

                 

                287.3

                 

                94.7

                 

                1,290.0

                 

                Esurance

                 

                36.6

                 

                167.5

                 

                168.1

                 

                 

                527.5

                 

                18.4

                 

                383.9

                 

                135.3

                 

                48.8

                 

                595.9

                 

                Other insurance operations

                 

                 

                63.2

                 

                 

                 

                 

                1.0

                 

                3.9

                 

                 

                1.8

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                December 31, 2005:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                OneBeacon

                 

                $

                180.1

                 

                $

                5,395.9

                 

                $

                960.3

                 

                $

                 

                $

                2,118.4

                 

                $

                238.1

                 

                $

                1,401.5

                 

                $

                390.7

                 

                $

                278.9

                 

                $

                2,121.1

                 

                WM Re

                 

                87.2

                 

                4,680.3

                 

                521.9

                 

                 

                1,371.6

                 

                148.9

                 

                1,237.9

                 

                279.6

                 

                107.0

                 

                1,304.1

                 

                Esurance

                 

                21.1

                 

                94.0

                 

                99.8

                 

                 

                306.8

                 

                9.8

                 

                206.2

                 

                90.8

                 

                37.2

                 

                349.1

                 

                Other insurance operations

                 

                 

                61.0

                 

                 

                 

                1.8

                 

                29.4

                 

                12.6

                 

                0.1

                 

                1.6

                 

                1.8

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                December 31, 2004:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                OneBeacon

                 

                $

                200.2

                 

                $

                5,114.0

                 

                $

                1,066.8

                 

                $

                 

                $

                2,378.5

                 

                $

                222.9

                 

                $

                1,545.2

                 

                $

                442.3

                 

                $

                369.2

                 

                $

                2,459.1

                 

                WM Re

                 

                99.1

                 

                4,170.3

                 

                615.5

                 

                 

                1,265.5

                 

                98.5

                 

                918.9

                 

                271.8

                 

                122.9

                 

                1,246.3

                 

                Esurance

                 

                8.9

                 

                63.0

                 

                57.2

                 

                 

                176.5

                 

                3.5

                 

                122.4

                 

                30.3

                 

                26.8

                 

                199.4

                 

                Other insurance operations

                 

                 

                51.2

                 

                 

                 

                 

                6.4

                 

                4.6

                 

                 

                1.5

                 

                 

                Column A

                 Column B
                 Column C
                 Column D
                 Column E
                 Column F
                 Column G
                 Column H
                 Column I
                 Column J
                 Column K
                Segment

                 Deferred
                acquisition
                costs

                 Future policy
                benefits,
                losses, claims
                and loss
                expenses

                 Unearned
                premiums

                 Other policy
                claims and
                benefits
                payable

                 Premiums
                earned

                 Net
                investment
                income(1)

                 Benefits,
                claims,
                losses, and
                settlement
                expenses

                 Amortization
                of deferred
                policy
                acquisition
                costs

                 Other
                operating
                expenses

                 Premiums
                written

                Years ended:                              

                December 31, 2007:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 OneBeacon $200.0 $4,480.3 $1,005.9 $ $1,873.6 $203.3 $1,089.8 $318.9 $329.4 $1,864.4
                 WM Re  86.5  3,252.1  396.0    1,146.8  198.1  701.0  255.0  118.5  1,095.7
                 Esurance  39.5  285.2  203.3    763.3  29.0  622.4  202.7  58.4  798.5
                 Other insurance operations    44.5        3.5  (6.8)   2.7  

                December 31, 2006:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 OneBeacon $183.8 $4,837.7 $985.2 $ $1,944.0 $176.1 $1,180.4 $332.2 $360.1 $1,957.6
                 WM Re  99.8  3,708.8  431.6    1,241.2  182.7  884.6  287.3  94.7  1,290.0
                 Esurance  36.6  167.5  168.1    527.5  18.4  383.9  135.3  48.8  595.9
                 Other insurance operations    63.2        1.0  3.9    1.8  

                December 31, 2005:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 OneBeacon $180.1 $5,395.9 $960.3 $ $2,118.4 $238.1 $1,401.5 $390.7 $278.9 $2,121.1
                 WM Re  87.2  4,680.3  521.9    1,371.6  148.9  1,237.9  279.6  107.0  1,304.1
                 Esurance  21.1  94.0  99.8    306.8  9.8  206.2  90.8  37.2  349.1
                 Other insurance operations    61.0      1.8  29.4  12.6  .1  1.6  1.8

                (1)
                The amounts shown exclude net investment income (expense) relating to non-insurance operations of $99.1 million, $48.0 million $65.3 million and $29.6$65.3 million for the twelve months ended December 31, 2007, 2006 and 2005, and 2004, respectively.

                FS-4


                FS-4




                SCHEDULE IV

                WHITE MOUNTAINS INSURANCE GROUP, LTD.


                REINSURANCE
                ($ in millions)(Millions)

                Column A

                 

                Column B

                 

                Column C

                 

                Column D

                 

                Column E

                 

                Column F

                 

                 

                 

                 

                 

                Ceded to

                 

                Assumed

                 

                 

                 

                Percentage

                 

                 

                 

                Gross

                 

                other

                 

                from other

                 

                Net

                 

                of amount

                 

                Premiums earned

                 

                amount

                 

                companies

                 

                companies

                 

                amount

                 

                assumed to net

                 

                Years ended:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                December 31, 2006:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                OneBeacon

                 

                $

                2,007.6

                 

                $

                (129.0

                )

                $

                65.4

                 

                $

                1,944.0

                 

                3.4

                %

                WM Re

                 

                240.2

                 

                (447.8

                )

                1,448.8

                 

                1,241.2

                 

                116.7

                %

                Esurance

                 

                495.3

                 

                (3.5

                )

                35.7

                 

                527.5

                 

                6.8

                %

                Other insurance operations

                 

                 

                 

                 

                 

                %

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                December 31, 2005:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                OneBeacon

                 

                $

                2,175.8

                 

                $

                (160.1

                )

                $

                102.7

                 

                $

                2,118.4

                 

                4.8

                %

                WM Re

                 

                347.6

                 

                (760.6

                )

                1,784.6

                 

                1,371.6

                 

                130.1

                %

                Esurance

                 

                280.1

                 

                (2.4

                )

                29.1

                 

                306.8

                 

                9.5

                %

                Other insurance operations

                 

                 

                (.1

                )

                1.9

                 

                1.8

                 

                105.6

                %

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                December 31, 2004:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                OneBeacon

                 

                $

                2,253.9

                 

                $

                (206.5

                )

                $

                331.1

                 

                $

                2,378.5

                 

                13.9

                %

                WM Re

                 

                310.4

                 

                (670.3

                )

                1,625.4

                 

                1,265.5

                 

                128.4

                %

                Esurance

                 

                153.6

                 

                (1.5

                )

                24.4

                 

                176.5

                 

                13.8

                %

                Other insurance operations

                 

                 

                 

                 

                 

                %

                Column A

                  
                  
                  
                  
                 Column F
                 
                 Column B
                 Column C
                 Column D
                  
                 
                 Column E
                 Percentage of amount assumed to net
                 
                Premiums earned

                 Gross amount
                 Ceded to other companies
                 Assumed from other companies
                 
                 Net amount
                 
                Years ended:               

                December 31, 2007:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 OneBeacon $2,016.6 $(198.7)$55.7 $1,873.6 3.0%
                 WM Re  108.2  (196.6) 1,235.2  1,146.8 107.7%
                 Esurance  736.8  (4.0) 30.5  763.3 4.0%
                 Other insurance operations         %

                December 31, 2006:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 OneBeacon $2,007.6 $(129.0)$65.4 $1,944.0 3.4%
                 WM Re  240.2  (447.8) 1,448.8  1,241.2 116.7%
                 Esurance  495.3  (3.5) 35.7  527.5 6.8%
                 Other insurance operations         %

                December 31, 2005:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                 OneBeacon $2,175.8 $(160.1)$102.7 $2,118.4 4.8%
                 WM Re  347.6  (760.6) 1,784.6  1,371.6 130.1%
                 Esurance  280.1  (2.4) 29.1  306.8 9.5%
                 Other insurance operations    (.1) 1.9  1.8 105.6%

                FS-5





                SCHEDULE V

                WHITE MOUNTAINS INSURANCE GROUP, LTD.


                VALUATION AND QUALIFYING ACCOUNTS

                Column A

                 

                Column B

                 

                Column C

                 

                Column D

                 

                Column E

                 

                Column A

                 Column B
                 Column C
                 Column D
                 Column E

                 

                 

                 

                Additions (subtractions)

                 

                 

                 

                 

                 

                 

                Balance at

                 

                Charged to

                 

                Charged

                 

                 

                 

                Balance at

                 

                 

                beginning

                 

                costs and

                 

                to other

                 

                Deductions

                 

                end

                 


                  
                 Additions (subtractions)
                  
                  

                Millions

                 

                of period

                 

                expenses

                 

                accounts

                 

                described (1)

                 

                of period

                 

                Millions

                 Balance at beginning of period
                 Charged to costs and expenses
                 Charged to other accounts
                 Deductions described(1)
                 Balance at end of period

                Years ended:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Years ended:          

                December 31, 2007:

                December 31, 2007:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 
                Reinsurance recoverable on paid losses:Reinsurance recoverable on paid losses:          
                Allowance for reinsurance balances $37.0 $(1.9)$ $.3 $35.4
                Property and casualty insurance and reinsurance premiums receivable:Property and casualty insurance and reinsurance premiums receivable:          

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Allowance for uncollectible accounts 22.9 (1.6)  3.2 24.5

                December 31, 2006:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 


                December 31, 2006:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Reinsurance recoverable on paid losses:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Reinsurance recoverable on paid losses:          

                Allowance for reinsurance balances

                 

                $

                41.6

                 

                $

                (16.9

                )

                $

                 

                $

                4.3

                 

                $

                29.0

                 

                Allowance for reinsurance balances $41.6 $(16.9)$ $12.3 $37.0

                Property and casualty insurance and reinsurance premiums receivable:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Property and casualty insurance and reinsurance premiums receivable:          

                Allowance for uncollectible accounts

                 

                20.7

                 

                (4.3

                )

                 

                6.5

                 

                22.9

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Allowance for uncollectible accounts 20.7 (4.3)  6.5 22.9

                December 31, 2005:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 


                December 31, 2005:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Reinsurance recoverable on paid losses:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Reinsurance recoverable on paid losses:          

                Allowance for reinsurance balances

                 

                $

                36.9

                 

                $

                5.0

                 

                $

                (4.6

                )

                $

                4.3

                 

                $

                41.6

                 

                Allowance for reinsurance balances $36.9 $5.0 $(4.6)$4.3 $41.6

                Property and casualty insurance and reinsurance premiums receivable:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Property and casualty insurance and reinsurance premiums receivable:          

                Allowance for uncollectible accounts

                 

                27.0

                 

                1.9

                 

                (8.8

                )

                .6

                 

                20.7

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Allowance for uncollectible accounts 27.0 1.9 (8.8) .6 20.7

                December 31, 2004:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Reinsurance recoverable on paid losses:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Allowance for reinsurance balances

                 

                $

                15.9

                 

                $

                5.7

                 

                $

                 

                $

                15.3

                (2)

                $

                36.9

                 

                Property and casualty insurance and reinsurance premiums receivable:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Allowance for uncollectible accounts

                 

                23.0

                 

                (12.1

                )

                3.2

                 

                12.9

                (2)

                27.0

                 


                (1)
                Represents net reinstatements (charge-offs) of balances receivables.

                FS-6


                (2)          Includes $17.8 million and $2.2 million of reinsurance recoverable on unpaid losses and property and casualty insurance and reinsurance premiums receivable, respectively, acquired from Sirius.

                FS-6




                SCHEDULE VI

                WHITE MOUNTAINS INSURANCE GROUP, LTD.


                SUPPLEMENTAL INFORMATION FOR PROPERTY AND CASUALTY INSURANCE UNDERWRITERS (Millions)

                Column A

                 

                Column B

                 

                Column C

                 

                Column D

                 

                Column E

                 

                Column F

                 

                Column G

                 

                Column H

                 

                Column I

                 

                Column J

                 

                Column K

                 

                 Column B
                 Column C
                 Column D
                 Column E
                 Column F
                 Column G
                 Column H
                 Column I
                 Column J
                 Column K

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Claims and 
                Claims

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Adjustment
                Expenses

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                Reserves for
                Unpaid Claims

                 

                Discount, if

                 

                 

                 

                 

                 

                 

                 

                Incurred
                Related to

                 

                Amortization
                of deferred

                 

                Paid Claims

                 

                 

                 

                 

                Deferred

                 

                and Claims

                 

                any,

                 

                 

                 

                 

                 

                Net

                 

                (1)

                 

                (2)

                 

                policy

                 

                and Claims

                 

                 

                 

                 

                acquisition

                 

                Adjustment

                 

                deducted in

                 

                Unearned

                 

                Earned

                 

                investment

                 

                Current

                 

                Prior

                 

                acquisition

                 

                Adjustment

                 

                Premiums

                 

                  
                  
                  
                  
                  
                  
                 Claims and Claims Adjustment Expenses Incurred Related to
                  
                  
                  

                Affiliation with registrant

                 

                costs

                 

                Expenses

                 

                Column C

                 

                Premiums

                 

                Premiums

                 

                income

                 

                Year

                 

                Year

                 

                costs

                 

                Expenses

                 

                written

                 

                 Deferred acquisition costs
                 Reserves for Unpaid Claims and Claims Adjustment Expenses
                 Discount,
                if any, deducted in Column C

                 Unearned Premiums
                 Earned Premiums
                 Net investment income
                 (1) Current Year
                 (2) Prior Year
                 Amortization of deferred policy acquisition costs
                 Paid Claims and Claims Adjustment Expenses
                 Premiums written

                OneBeacon:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                                      
                2007 $200.0 $4,480.3 $395.4(2)$1,005.9 $1,873.6 $203.3 $1,138.1 $(48.3)$318.9 $1,250.1 $1,864.4

                2006

                 

                $

                183.8

                 

                $

                4,837.7

                 

                $

                461.2

                (2)

                $

                985.2

                 

                $

                1,944.0

                 

                $

                176.1

                 

                $

                1,169.0

                 

                $

                11.3

                 

                $

                332.2

                 

                $

                1,553.0

                 

                $

                1,957.6

                 

                 183.8 4,837.7 461.2(2) 985.2 1,944.0 176.1 1,169.0 11.3 332.2 1,553.0 1,957.6

                2005

                 

                180.1

                 

                5,395.9

                 

                531.8

                (2)

                960.3

                 

                2,118.4

                 

                238.1

                 

                1,306.5

                 

                95.0

                 

                390.7

                 

                1,839.8

                 

                2,121.1

                 

                 180.1 5,395.9 531.8(2) 960.3 2,118.4 238.1 1,306.5 95.0 390.7 1,839.8 2,121.1

                2004

                 

                200.2

                 

                5,114.0

                 

                620.9

                (2)

                1,066.8

                 

                2,378.5

                 

                222.9

                 

                1,444.9

                 

                100.3

                 

                442.3

                 

                2,085.9

                 

                2,459.1

                 

                WM Re:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                                      
                2007 $86.5 $3,252.1 $34.7(3)$396.0 $1,146.8 $198.1 $692.0 $9.1 $255.0 $870.2 $1,095.7

                2006

                 

                $

                99.8

                 

                $

                3,708.8

                 

                $

                39.1

                (3)

                $

                431.6

                 

                $

                1,241.2

                 

                $

                182.7

                 

                $

                666.6

                 

                $

                218.0

                 

                $

                287.2

                 

                $

                1,070.9

                 

                $

                1,290.0

                 

                 99.8 3,708.8 39.1(3) 431.6 1,241.2 182.7 666.6 218.0 287.2 1,070.9 1,290.0

                2005

                 

                87.2

                 

                4,680.3

                 

                39.5

                (3)

                521.9

                 

                1,371.6

                 

                148.9

                 

                1,186.8

                 

                51.0

                 

                279.6

                 

                1,229.7

                 

                1,304.1

                 

                 87.2 4,680.3 39.5(3) 521.9 1,371.6 148.9 1,186.8 51.0 279.6 1,229.7 1,304.1

                2004

                 

                99.1

                 

                4,170.3

                 

                48.0

                (3)

                615.5

                 

                1,265.5

                 

                98.5

                 

                903.8

                 

                15.1

                 

                271.8

                 

                910.6

                 

                1,246.3

                 

                Esurance:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                                      
                2007 $39.5 $285.2 $ $203.3 $763.3 $29.0 $592.9 $29.6 $202.7 $506.1 $798.5

                2006

                 

                $

                36.6

                 

                $

                167.5

                 

                $

                 

                $

                168.1

                 

                $

                527.5

                 

                $

                18.4

                 

                $

                380.9

                 

                $

                3.0

                 

                $

                135.3

                 

                $

                309.6

                 

                $

                595.9

                 

                 36.6 167.5  168.1 527.5 18.4 380.9 3.0 135.3 309.6 595.9

                2005

                 

                21.1

                 

                94.0

                 

                 

                99.8

                 

                306.8

                 

                9.8

                 

                213.9

                 

                (7.7

                )

                90.8

                 

                175.0

                 

                349.1

                 

                 21.1 94.0  99.8 306.8 9.8 213.9 (7.7) 90.8 175.0 349.1

                2004

                 

                8.9

                 

                63.0

                 

                 

                57.2

                 

                176.5

                 

                3.5

                 

                127.5

                 

                (5.1

                )

                30.3

                 

                96.6

                 

                199.4

                 

                Other insurance operations:

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                                      
                2007 $ $44.5 $ $ $ $3.5 $(.2)$(6.8)$ $11.7 $

                2006

                 

                $

                 

                $

                63.2

                 

                $

                 

                $

                 

                $

                 

                $

                1.0

                 

                $

                3.9

                 

                $

                 

                $

                 

                $

                4.1

                 

                $

                 

                  63.2    1.0 3.9   4.1 

                2005

                 

                 

                61.1

                 

                 

                 

                1.8

                 

                29.4

                 

                 

                12.6

                 

                0.1

                 

                6.5

                 

                1.8

                 

                  61.1   1.8 29.4  12.6 .1 6.5 1.8

                2004

                 

                 

                51.2

                 

                 

                 

                 

                6.4

                 

                 

                4.6

                 

                 

                (2.2

                )

                 

                50%-or-less owned property and casualty investees(1):

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                50%-or-less owned property and casualty investees:(1)                      

                Delos(4):

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                                      
                2007 $3.6 $66.0 $ $19.5 $15.7 $2.2 $9.9 $ $.7 $5.8 $25.8

                2006

                 

                $

                0.2

                 

                $

                68.2

                 

                $

                 

                $

                8.8

                 

                $

                2.1

                 

                $

                0.4

                 

                $

                1.3

                 

                $

                 

                $

                 

                $

                2.1

                 

                $

                0.7

                 

                 .2 68.2  8.8 2.1 .4 1.3   2.1 .7

                MSA(5):

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                 

                                      

                2005

                 

                31.2

                 

                190.2

                 

                 

                154.5

                 

                233.8

                 

                13.6

                 

                149.3

                 

                18.0

                 

                62.8

                 

                143.9

                 

                240.8

                 

                 31.2 190.2  154.5 233.8 13.6 149.3 18.0 62.8 143.9 240.8

                2004

                 

                30.8

                 

                162.8

                 

                 

                144.2

                 

                217.8

                 

                13.2

                 

                144.7

                 

                4.7

                 

                60.0

                 

                132.7

                 

                227.3

                 


                (1)
                The amounts shown represent White Mountains’Mountains' share of its 50% owned unconsolidated property and casualty insurance affiliates.



                (2)
                The amounts shown represent OneBeacon’sOneBeacon's discount on its long-term workers compensation loss and LAE reserves, as such liabilities constitute unpaid but settled claims under which the payment pattern and ultimate costs are fixed and determinable on an individual basis. OneBeacon discounts these reserves using a discount rate which is determined based on the facts and circumstances applicable at the time the claims are settled (5.3%,(5.5%,5.3% and 5.0% and 4.7% at December 31, 2007, 2006 2005 and 2004)2005). Also the amounts shown exclude unamortized fair value adjustments to reserves for unpaid claims and claims adjustment expenses made in purchase accounting as a result of White Mountains’Mountains' purchase of OneBeacon for the years ended December 31, 2007, 2006 and 2005, and 2004, respectively

                respectively.

                (3)
                The amount shown represents unamortized fair value adjustments to reserves for unpaid claims and claims adjustment expenses made in purchase accounting as a result of White Mountains’Mountains' purchase of Sirius during 2004.



                (4)
                On August 3, 2006 White Mountains acquired an equity interest of approximately 18% in Delos. See Note 2

                2.

                (5)
                On October 31, 2006 White Mountains restructured its investment in MSA. See Note 2.

                FS-7





                QuickLinks

                SIGNATURES
                WHITE MOUNTAINS INSURANCE GROUP, LTD. Index to Consolidated Financial Statements and Financial Statement Schedules
                CONSOLIDATED BALANCE SHEETS
                CONSOLIDATED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME
                CONSOLIDATED STATEMENTS OF COMMON SHAREHOLDERS' EQUITY
                CONSOLIDATED STATEMENTS OF CASH FLOWS
                NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
                MANAGEMENT'S RESPONSIBILITY FOR FINANCIAL STATEMENTS
                MANAGEMENT'S ANNUAL REPORT ON INTERNAL CONTROL OVER FINANCIAL REPORTING
                Report of Independent Registered Public Accounting Firm
                SELECTED QUARTERLY FINANCIAL DATA (Unaudited)
                SCHEDULE I
                WHITE MOUNTAINS INSURANCE GROUP, LTD. SUMMARY OF INVESTMENTS—OTHER THAN INVESTMENTS IN RELATED PARTIES At December 31, 2007
                SCHEDULE II
                CONDENSED FINANCIAL INFORMATION OF THE REGISTRANT CONDENSED BALANCE SHEETS
                CONDENSED STATEMENTS OF INCOME AND COMPREHENSIVE INCOME
                CONDENSED STATEMENTS OF CASH FLOWS
                SCHEDULE III
                WHITE MOUNTAINS INSURANCE GROUP, LTD. SUPPLEMENTARY INSURANCE INFORMATION (Millions)