SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

For the transition period from to .

(Exact name of registrant as specified in its charter)



Maryland		20-1076777
(State or other jurisdiction of incorporation or organization)		(I.R.S. Employer Identification No.)

Certain information presented in this report contains “forward-looking statements” within the meaning of the federal securities laws. Forward-looking statements include statements concerning our plans, objectives, goals, strategies, future events, future revenues or performance, capital expenditures, financing needs, plans or intentions relating to acquisitions and other information that is not historical information. In some cases, forward-looking statements can be identified by terminology such as “believes,” “expects,” “estimates,” “may,” “will,” “should,” “anticipates” or “intends,” or the negative of such terms or other comparable terminology, or by discussions of strategy. We may also make additional forward-looking statements from time to time. All such subsequent forward-looking statements, whether written or oral, by us or on our behalf, are also expressly qualified by these cautionary statements.

All forward-looking statements, including without limitation, management’s examination of historical operating trends and estimates of future earnings, are based upon our current expectations and various assumptions. Our expectations, beliefs and projections are expressed in good faith and we believe there is a reasonable basis for them, but there can be no assurance that management’s expectations, beliefs and projections will result or be achieved. All forward-looking statements apply only as of the date made. We undertake no obligation to publicly update or revise forward-looking statements which may be made to reflect events or circumstances after the date made or to reflect the occurrence of unanticipated events.

There are a number of risks and uncertainties that could cause our actual results to differ materially from the forward-looking statements contained in or contemplated by this report. Any forward-looking statements should be considered in light of the risks referenced in “Part II. Item 1A. Risk Factors” below and in “Part I. Item 1A. Risk Factors” included in our most recent Annual Report on Form 10-K. Such factors include, but are not limited to:

The forward-looking statements are based on our beliefs, assumptions and

We disclaim any duty or obligation to update or revise any forward-looking statements set forth in this report to reflect new information, future events or otherwise.

(amounts in thousands, except share data)

See accompanying notes to unaudited condensed consolidated financial statements.

(amounts in thousands, except share data)

See accompanying notes to unaudited condensed consolidated financial statements.

(amounts in thousands)

See accompanying notes to unaudited condensed consolidated financial statements.

(amounts in thousands, except share data)

See accompanying notes to unaudited condensed consolidated financial statements.

~~Extra Space Storage Inc.~~

~~Condensed Consolidated Statements of Cash Flows~~

~~(amounts in thousands)~~

~~(unaudited)~~

For the Nine Months Ended September 30,
2017 2016
Cash flows from operating activities:
Net income $ 284,907
$ 306,673
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization 144,139
133,402
Amortization of deferred financing costs 9,246
9,388
Non-cash interest expense related to amortization of discount on equity component of exchangeable senior notes 3,827
3,716
Non-cash interest expense related to amortization of premium on notes payable —
(828 )
Compensation expense related to stock-based awards 7,244
6,008
Gain on sale of real estate assets and purchase of joint venture partner's interest —
(64,432 )
(Gain) loss on real estate transactions, earnout from prior acquisition and impairment of real estate 6,019
(9,814 )
Distributions from unconsolidated real estate ventures in excess of earnings 3,498
3,071
Changes in operating assets and liabilities:
Receivables from related parties and affiliated real estate joint ventures 195
923
Other assets (15,498 ) (16,059 )
Accounts payable and accrued expenses 6,425
10,938
Other liabilities (373 ) 3,173
Net cash provided by operating activities 449,629
386,159
Cash flows from investing activities:
Acquisition of real estate assets (119,040 ) (763,246 )
Development and redevelopment of real estate assets (20,670 ) (18,492 )
Proceeds from sale of real estate assets, investments in real estate ventures and other assets 18,565
56,786
Change in restricted cash (3,393 ) 14,296
Investment in unconsolidated real estate ventures (3,021 ) (25,690 )
Return of investment in unconsolidated real estate ventures 581
11,991
Purchase/issuance of notes receivable —
(18,530 )
Principal payments received from notes receivable 44,869
41,393
Purchase of equipment and fixtures (5,635 ) (2,818 )
Net cash used in investing activities (87,744 ) (704,310 )
Cash flows from financing activities:
Proceeds from the sale of common stock, net of offering costs —
123,423
Repurchase of exchangeable senior notes (19,726 ) (22,192 )
Proceeds from notes payable and revolving lines of credit 1,023,170
1,026,975
Principal payments on notes payable and revolving lines of credit (1,020,144 ) (565,541 )
Deferred financing costs (5,172 ) (6,700 )
Net proceeds from exercise of stock options 1,266
312
Proceeds from termination of interest rate cap —
1,650
Payment of earnout from prior acquisition —
(4,600 )
Redemption of Operating Partnership units held by noncontrolling interests (2,510 ) —
Dividends paid on common stock (294,754 ) (269,630 )
Distributions to noncontrolling interests (24,141 ) (22,653 )
Net cash provided by (used in) financing activities (342,011 ) 261,044
Net increase in cash and cash equivalents 19,874
(57,107 )
Cash and cash equivalents, beginning of the period 43,858
75,799
Cash and cash equivalents, end of the period $ 63,732
$ 18,692

Extra Space Storage Inc.

Condensed Consolidated Statements of Cash Flows

(amounts in thousands)

(unaudited)

For the Nine Months Ended September 30,
2017 2016
Supplemental schedule of cash flow information
Interest paid $ 107,144
$ 94,585
Income taxes paid 8,086
10,813
Supplemental schedule of noncash investing and financing activities:
Redemption of Operating Partnership units held by noncontrolling interests for common stock:
Noncontrolling interests in Operating Partnership $ —
$ (839 )
Common stock and paid-in capital —
839
Tax effect from vesting of restricted stock grants and option exercises
Other assets $ —
$ 1,322
Additional paid-in capital —
(1,322 )
Acquisitions of real estate assets
Real estate assets, net $ 20,100
$ 65,960
Value of Operating Partnership units issued (8,810 ) (56,237 )
Notes payable assumed (9,463 ) (9,723 )
Other noncontrolling interests (1,827 ) —
Accrued construction costs and capital expenditures
Acquisition of real estate assets $ 4,874
$ 8,839
Development and redevelopment of real estate assets 1,558
—
Other liabilities (6,432 ) (8,839 )
Distribution of real estate from investments in unconsolidated real estate ventures
    Real estate assets, net $ —
$ 21,587
    Investments in unconsolidated real estate ventures —
(21,587 )
Disposition of real estate assets
    Real estate assets, net $ —
$ (7,689 )
Operating Partnership units redeemed —
7,689
Acquisition of noncontrolling interests
Operating Partnership units issued $ —
$ (800 )
Other noncontrolling interests —
162
Additional paid-in capital —
638



	For the Six Months Ended June 30,
	2018			2017
Cash flows from operating activities:
Net income	$	198,143		$	183,832
Adjustments to reconcile net income to net cash provided by operating activities:
Depreciation and amortization	103,641			96,064
Amortization of deferred financing costs	6,064			6,083
Non-cash interest expense related to amortization of discount on equity component of exchangeable senior notes	2,385			2,559
Compensation expense related to stock-based awards	5,842			4,955
Loss on real estate transactions and impairment of real estate	—			6,019
Distributions from unconsolidated real estate ventures in excess of earnings	3,615			2,365
Changes in operating assets and liabilities:
Other assets	7,269			15,203
Accounts payable and accrued expenses	7,888			(18,090		)
Other liabilities	4,895			(9,941		)
Net cash provided by operating activities	339,742			289,049
Cash flows from investing activities:
Acquisition of real estate assets	(238,153		)	(72,651		)
Development and redevelopment of real estate assets	(27,893		)	(12,274		)
Proceeds from sale of real estate assets, investments in real estate ventures and other assets	753			101
Investment in unconsolidated real estate ventures	(34,752		)	(2,670		)
Return of investment in unconsolidated real estate ventures	47,944			581
Principal payments received from notes receivable	25,226			44,869
Purchase of equipment and fixtures	(2,220		)	(4,110		)
Net cash used in investing activities	(229,095		)	(46,154		)
Cash flows from financing activities:
Proceeds from notes payable and revolving lines of credit	645,386			652,446
Principal payments on notes payable and revolving lines of credit	(487,016		)	(686,443		)
Deferred financing costs	(3,028		)	(2,925		)
Repurchase of exchangeable senior notes	(58,469		)	—
Net proceeds from exercise of stock options	1,170			—
Redemption of Operating Partnership units held by noncontrolling interests	(2,558		)	(2,510		)
Contributions from noncontrolling interests	120			—
Dividends paid on common stock	(206,813		)	(196,468		)
Distributions to noncontrolling interests	(16,377		)	(16,325		)
Net cash used in financing activities	(127,585		)	(252,225		)
Net decrease in cash, cash equivalents, and restricted cash	(16,938		)	(9,330		)
Cash, cash equivalents, and restricted cash, beginning of the period	86,044			57,742
Cash, cash equivalents, and restricted cash end of the period	$	69,106		$	48,412

Extra Space Storage Inc.

Condensed Consolidated Statements of Cash Flows

(amounts in thousands)

(unaudited)



	For the Six Months Ended June 30,
	2018			2017
Supplemental schedule of cash flow information
Interest paid	$	78,602		$	67,808
Income taxes paid	1,836			7,544
Supplemental schedule of noncash investing and financing activities:
Redemption of Operating Partnership units held by noncontrolling interests for common stock
Noncontrolling interests in Operating Partnership	$	(383	)	$	—
Common stock and paid-in capital	383			—
Acquisitions of real estate assets
Real estate assets, net	$	88,842		$	18,100
Value of Operating Partnership units issued	(1,877		)	(6,810		)
Notes payable assumed	(87,500		)	(9,463		)
Investment in unconsolidated real estate ventures	535			—
Other noncontrolling interests	—			(1,827		)
Accrued construction costs and capital expenditures
Acquisition of real estate assets	$	1,184		$	6,580
Development and redevelopment of real estate assets	1,558			2,798
Accounts payable and accrued expenses	(2,742		)	(9,378		)

See accompanying notes to unaudited condensed consolidated financial statements.

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited)

Amounts in thousands, except store and share data, unless otherwise stated

Extra Space Storage Inc. (the “Company”) is a ~~fully-integrated,~~fully integrated, self-administered and self-managed real estate investment trust (“REIT”), formed as a Maryland corporation on April 30, 2004, to own, operate, manage, acquire, develop and redevelop professionally managed self-storage properties ~~(“stores”~~("stores") located throughout the United States. The Company ~~continues~~was formed to continue the business of Extra Space Storage LLC and its subsidiaries, which had engaged in the self-storage business since 1977. The Company’s ~~interests~~interest in its stores is held through its operating partnership, Extra Space Storage LP (the “Operating Partnership”), which was formed on May 5, 2004. The Company’s primary assets are general partner and limited partner interests in the Operating Partnership. This structure is commonly referred to as an umbrella partnership REIT, or UPREIT. The Company has elected to be taxed as a REIT under the Internal Revenue Code of 1986, as amended. To the extent the Company continues to qualify as a REIT, it will not be subject to tax, with certain limited exceptions, on the taxable income that is distributed to its stockholders.

The Company invests in stores by acquiring wholly-owned stores or by acquiring an equity interest in real estate entities. At ~~September~~June 30, ~~2017,~~2018, the Company had direct and indirect equity interests in ~~1,028~~1,082 stores. In addition, the Company managed ~~485~~486 stores for third parties, bringing the total number of stores which it owns and/or manages to ~~1,513.~~1,568. These stores are located in 3839 states, Washington, D.C. and Puerto Rico.

The Company ~~operates in three distinct segments: (1) rental operations; (2)~~also offers tenant ~~reinsurance;~~reinsurance at its owned and ~~(3) property management, acquisition and development. The rental operations activities include rental operations of~~managed stores ~~in which we have an ownership interest. No single tenant accounts for more than 5.0% of rental income. Tenant reinsurance activities include~~that insures the ~~reinsurance of risks relating to the loss~~value of goods ~~stored by tenants~~ in the ~~Company’s stores. The Company’s property management, acquisition and development activities include managing, acquiring and developing stores.~~

The accompanying unaudited condensed consolidated financial statements of the Company are presented on the accrual basis of accounting in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information, and in accordance with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they may not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (including normal recurring accruals) considered necessary for a fair presentation have been included. Operating results for the three and ~~nine~~six months ended ~~September~~June 30, ~~2017~~2018 are not necessarily indicative of results that may be expected for the year ending December 31, ~~2017.~~2018. The condensed consolidated balance sheet as of December 31, ~~2016~~2017 has been derived from the Company’s audited financial statements as of that date, but does not include all of the information and footnotes required by GAAP for complete financial statements. For further information refer to the consolidated financial statements and footnotes thereto included in the Company’s Annual Report on Form 10-K for the year ended December 31, ~~2016,~~2017, as filed with the Securities and Exchange Commission.

Beginning January 1, 2018, the Company has elected to include amounts previously reported on the condensed consolidated balance sheets as "Receivables from related parties and affiliated joint ventures" in "Other assets, net," as these amounts are no longer material. Additionally, the Company has elected to include amounts previously reported on the condensed consolidated statements of operations as "Interest income on note receivable from Preferred Operating Partnership unit holder" in "Interest income" as these amounts are no longer material. Prior year amounts have been reclassified to conform to the current year's presentation.

Immaterial Correction to Consolidated Balance Sheets

In connection with the preparation of the financial statements for the quarter ended March 31, 2018, the Company determined that the negative balances in the "Investments in unconsolidated real estate ventures" line should be presented separately as liabilities. As a result, $5,816 should have been reported as "Cash distributions in unconsolidated real estate ventures" as of December 31, 2017. The Company concluded that the amount was not material to the consolidated balance sheet as of December 31, 2017 but has elected to present these amounts as liabilities in the accompanying financial statements for consistent presentation. The classification error had no effect on the previously reported consolidated statements of operations, comprehensive income, stockholders' equity or cash flows for the year ended December 31, 2017.

Recently Issued Accounting Standards

In May 2014, the Financial Accounting Standards Board (“FASB”) issued Accounting Standards Update (“ASU”) 2014-09, “Revenue from Contracts with Customers,” ("Topic 606") which amends the guidance for revenue recognition to replace numerous, industry-specific requirements and converges areas under this topic with those of the International Financial Reporting Standards. ~~ASU 2014-09~~Topic 606 outlines a five-step process for customer contract revenue recognition that focuses on transfer of control, as opposed to transfer of risk and rewards. The amendment also requires enhanced disclosures regarding the nature, amount, timing and uncertainty of revenues and cash flows from contracts with customers. ~~The new standard will become~~Topic 606 became effective for annual and interim periods beginning after December 15, 2017 with early adoption permitted. The Company has determined that its property rental revenue and tenant reinsurance revenue will not be subject to the guidance in ASU 2014-09, as they qualify as lease contracts and insurance contracts, which are excluded from its scope. The Company's management fee revenue will be included in the scope of the standard. However, based on the Company's initial assessment, it appears that revenue recognized under the standard will not differ materially from revenue recognized under existing guidance. The Company continues to assess the potential impacts of ASU 2014-09. The Company anticipates adopting the standard using the modified retrospective transition method as of January 1, 2018.

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

annual and interim periods beginning after December 15, 2017. The Company determined that its property rental revenue and tenant reinsurance revenue are not subject to the guidance in Topic 606, as they qualify as lease contracts and insurance contracts, which are excluded from its scope. The Company's management fee revenue was included in the scope of Topic 606 and revenue recognized under the standard does not differ materially from revenue recognized under previous guidance. The Company adopted the new guidance using the modified retrospective transition method for all contracts as of January 1, 2018. The Company's adoption of this guidance did not result in a cumulative catch-up adjustment or any significant changes to financial statement line items.

In February 2016, the FASB issued ASU 2016-02, “Leases (Topic 842),” which modifies the accounting for leases, intending to increase transparency and comparability of organizations by requiring balance sheet presentation of leased assets and increased financial statement disclosure of leasing arrangements. ASU 2016-02 will require entities to recognize a liability for their lease obligations and a corresponding asset representing the right to use the underlying asset over the lease term. Lease obligations are to be measured at their present value and accounted for using the effective interest method. The accounting for the leased asset will differ slightly depending on whether the agreement is deemed to be a financing or operating lease. For financing leases, the leased asset is depreciated on a straight-line basis and depreciation expense is recorded separately from the interest expense in the statements of operations, resulting in higher expense in the earlier part of the lease term. For operating leases, the depreciation and interest expense components are combined, recognized evenly over the term of the lease, and presented as a reduction to operating income. ASU 2016-02 requires that assets and liabilities be presented or disclosed separately, and requires additional disclosure of certain qualitative and quantitative information related to these lease agreements. ASU 2016-02 is effective for annual and interim periods beginning after December 15, 2018. The Company ~~is currently assessing~~plans to adopt the ~~impact~~standard using the modified retrospective approach beginning January 1, 2019. The Company expects to elect the package of practical expedients upon adoption, which allows for the application of the ~~adoption of ASU 2016-02 on~~standard solely to the transition period in 2019 but does not require application to prior fiscal comparative periods presented. The primary impact is expected to be related to the Company’s ~~consolidated financial statements.~~

~~In March 2016, the FASB issued ASU 2016-05,~~ ~~"Derivatives and Hedging (Topic 815): Effect of Derivative Contract Novations on Existing Hedge Accounting Relationships."~~ ~~ASU 2016-05 clarifies that a change~~24 ground leases in ~~the counterparty to a derivative instrument that has been designated~~which it serves as a hedging instrument does not, in and of itself, require re-designation of that hedging relationship provided that all other hedge accounting criteria continue to be met. The Company adopted this guidance on January 1, 2017. The adoption of ASU 2016-05 did not have a material impact on the Company's consolidated financial statements.

~~In March 2016, the FASB issued ASU 2016-09, “Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting~~.” ASU 2016-09 simplifies several aspects of the accounting for employee share-based payment transactions, including the income tax consequences, classification of awards as either equity or liabilities, and classification on the statement of cash flows. This ASU is effective for fiscal years beginning after December 15, 2016, including interim periods within those fiscal years. The Company adopted this guidance prospectively on January 1, 2017, and prior periods have not

been adjusted. As a result of the adoption of this guidance, the Company no longer presents the tax effects from vesting of restricted stock grants and stock option exercises on its condensed consolidated statement of noncontrolling interests and equity.

~~In August 2016, the FASB issued ASU 2016-15,~~ ~~"Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments."~~ ASU 2016-15 provides guidance on several specific cash flow issues, including the classification of debt prepayment or debt extinguishment costs, contingent consideration payments, and distributions received from equity method investees. This guidance is effective for fiscal years beginning after December 15, 2017. The Company is currently evaluating the new guidance to determine the impact it may have on its consolidated financial statements.lessee.

In October 2016, the FASB issued ASU 2016-18, "Statement of Cash Flows (Topic 230): Restricted Cash," which requires that a statement of cash flows explains the change during the period in the total of cash, cash equivalents, and amounts generally described as restricted cash or restricted cash equivalents. Therefore, amounts generally described as restricted cash and restricted cash equivalents should be included with cash and cash equivalents when reconciling the beginning-of-period and end-of-period total amounts shown on the statement of cash flows. This guidance is effective for fiscal years beginning after December 15, 2017, and interim periods within those fiscal years. ~~Early adoption is permitted. The Company is currently evaluating the new guidance to determine the impact it may have on its consolidated financial statements.~~

~~In January 2017, the FASB issued ASU 2017-01,~~ ~~"Business Combinations (Topic 805): Clarifying the Definition of a Business,"~~ which provides guidance on whether transactions should be accounted for as acquisitions or disposals of assets or businesses. Specifically, when substantially all of the fair value of the gross assets acquired (or disposed of) is concentrated in a single identifiable asset or group of similar identifiable assets, the set of assets is not a business. Additionally, ASU 2017-01 also provides other guidance providing a more robust framework to use in determining whether a set of assets and activities is a

business. This guidance is effective for annual periods beginning after December 15, 2017. Early adoption is permitted for transactions for which the acquisition or disposition date occurs before the issuance date or effective date of the amendments, only when the transaction has not been reported in financial statements that have been issued. The Company adopted ~~ASU 2017-01 for new acquisitions beginning on~~this guidance as of January 1, ~~2017. The costs related~~2018, and now presents restricted cash with cash and cash equivalents in the statements of cash flows. Prior period amounts have been reclassified to conform to the ~~acquisitions of stores that qualify as asset acquisitions will be capitalized as part of the purchase.~~current year's presentation.

In August 2017, the FASB issued ASU 2017-12, "Derivatives and Hedging (Topic 815): Targeted Improvements for Accounting for Hedging Activities," which amends and simplifies existing guidance for the financial reporting of hedging relationships to

~~EXTRA SPACE STORAGE INC.~~

~~NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS~~ ~~(unaudited) (continued)~~

~~Amounts in thousands, except store and share data, unless otherwise stated~~

allow companies to better portray the economic effects of risk management activities in their financial statements. ASU 2017-12 is effective for annual periods beginning after December 15, 2018, with early adoption permitted. The Company ~~is currently evaluating~~has chosen to early adopt this standard as of January 1, 2018. The adoption of this standard did not have a material impact on the ~~new guidance to determine the impact it may have on its consolidated~~ financial statements.

Derivative Financial Instruments

Currently, the Company uses interest rate swaps to manage its interest rate risk. The valuation of these instruments is determined using widely accepted valuation techniques, including discounted cash flow analysis on the expected cash flows of each derivative. This analysis reflects the contractual terms of the derivatives, including the period to maturity, and uses observable market-based inputs, including interest rate curves. The fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash payments and the discounted expected variable cash receipts. The variable cash receipts are based on an expectation of future interest rates (forward curves) derived from observable market interest rate forward curves.

The Company incorporates credit valuation adjustments to appropriately reflect both its own nonperformance risk and the respective counterparty’s nonperformance risk in the fair value measurements. In adjusting the fair value of its derivative contracts for the effect of nonperformance risk, the Company has considered the impact of netting and any applicable credit

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

enhancements, such as collateral postings, thresholds, mutual puts and guarantees. In conjunction with the FASB’s fair value measurement guidance, the Company made an accounting policy election to measure the credit risk of its derivative financial instruments that are subject to master netting agreements on a net basis by counterparty portfolio.

Although the Company has determined that the majority of the inputs used to value its derivatives fall within Level 2 of the fair value hierarchy, the credit valuation adjustments associated with its derivatives utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by the Company and its counterparties. However, as of ~~September~~June 30, ~~2017,~~2018, the Company had assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions and determined that the credit valuation adjustments were not significant to the overall valuation of its derivatives. As a result, the Company determined that its derivative valuations in their entirety were classified in Level 2 of the fair value hierarchy.

The table below presents the Company’s assets and liabilities measured at fair value on a recurring basis as of ~~September~~June 30, ~~2017,~~2018, aggregated by the level in the fair value hierarchy within which those measurements fall.

The Company did not have any significant assets or liabilities that are re-measured on a recurring basis using significant unobservable inputs as of ~~September~~June 30, ~~2017~~2018 or December 31, ~~2016.~~2017.

Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis

Long-lived assets held for use are evaluated for impairment when events or circumstances indicate there may be impairment. The Company reviews each store at least annually to determine if any such events or circumstances have occurred or exist. The Company focuses on stores where occupancy and/or rental income have decreased by a significant amount. For these stores, the Company determines whether the decrease is temporary or permanent, and whether the store will likely recover the lost occupancy and/or revenue in the short term. In addition, the Company carefully reviews stores in the lease-up stage and compares actual operating results to original projections.

When the Company determines that an event that may indicate impairment has occurred, the Company compares the carrying value of the related long-lived assets to the undiscounted future net operating cash flows attributable to the assets. An

~~EXTRA SPACE STORAGE INC.~~

~~NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS~~ ~~(unaudited) (continued)~~

~~Amounts in thousands, except store and share data, unless otherwise stated~~

impairment loss is recorded if the net carrying value of the assets exceeds the undiscounted future net operating cash flows attributable to the assets. The impairment loss recognized equals the excess of net carrying value over the related fair value of the assets.

When real estate assets are identified by management as held for sale, the Company discontinues depreciating the assets and estimates the fair value of the assets, net of selling costs. If the estimated fair value, net of selling costs, of the assets that have been identified as held for sale is less than the net carrying value of the assets, the Company would recognize an impairment loss on the assets held for sale. The operations of assets held for sale or sold during the period are presented as part of normal operations for all periods presented. As of ~~September~~June 30, ~~2017,~~2018, the Company had one ~~parcel of undeveloped land and 36~~ operating ~~stores~~store classified as held for sale. The estimated fair value less selling costs of ~~each of these~~this operating ~~stores~~store is greater than the carrying value of the assets, and therefore no loss has been recorded related to the operating ~~stores~~store held for sale. For the nine months ended September 30, 2017, the Company recorded an impairment loss of $6,100 relating to one parcel of land held for sale and an additional two parcels of undeveloped land where the carrying value was greater than the fair value.

The Company assesses whether there are any indicators that the value of the Company’s investments in unconsolidated real estate ventures may be impaired annually and when events or circumstances indicate that there may be impairment. An investment is impaired if management’s estimate of the fair value of the investment is less than its carrying value. To the extent impairment has occurred, and is considered to be other than temporary, the loss is measured as the excess of the carrying amount of the investment over the fair value of the investment.

In connection with the Company’s acquisition of stores, the purchase price is allocated to the tangible and intangible assets and liabilities acquired based on their relative fair values, which are estimated using significant unobservable inputs. The value of

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

the tangible assets, consisting of land and buildings, is determined as if vacant. Intangible assets, which represent the value of existing tenant relationships, are recorded at their fair values based on the avoided cost to replace the current leases. The Company measures the value of tenant relationships based on the rent lost due to the amount of time required to replace existing customers, which is based on the Company’s historical experience with turnover in its stores. Debt assumed as part of an acquisition is recorded at fair value based on current interest rates compared to contractual rates. Acquisition-related transaction costs ~~for those qualifying as asset acquisitions,~~ are capitalized as ~~a component~~part of the ~~cost of the assets acquired.~~purchase price.

Fair Value of Financial Instruments

The carrying values of cash and cash equivalents, restricted cash, receivables, other financial instruments included in other assets, accounts payable and accrued expenses, variable-rate notes payable, lines of credit and other liabilities reflected in the condensed consolidated balance sheets at ~~September~~June 30, ~~2017~~2018 and December 31, ~~2016~~2017 approximate fair value. Restricted cash is comprised of letters of credit and escrowed funds deposited with financial institutions located throughout the United States relating to earnest money deposits on potential acquisitions, real estate taxes, insurance and capital expenditures.

The fair values of the Company’s notes receivable from Preferred Operating Partnership unit holders and other fixed rate notes receivable were based on the discounted estimated future cash flows of the notes (categorized within Level 3 of the fair value hierarchy); the discount rate used approximated the current market rate for loans with similar maturities and credit quality. The fair values of the Company’s fixed-rate notes payable and notes payable to trusts were estimated using the discounted estimated future cash payments to be made on such debt (categorized within Level 3 of the fair value hierarchy); the discount rates used approximated current market rates for loans, or groups of loans, with similar maturities and credit quality. The fair value of the Company’s exchangeable senior notes was estimated using an average market price for similar securities obtained from a third party.

The fair values of the Company’s fixed-rate assets and liabilities were as follows for the periods indicated:

~~EXTRA SPACE STORAGE INC.~~

~~NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS~~ ~~(unaudited) (continued)~~

~~Amounts in thousands, except store and share data, unless otherwise stated~~

Basic earnings per common share is computed using the two-class method by dividing net income attributable to common stockholders by the weighted average number of common shares outstanding during the period. All outstanding unvested restricted stock awards contain rights to non-forfeitable dividends and participate in undistributed earnings with common stockholders; accordingly, they are considered participating securities that are included in the two-class method. Diluted earnings per common share measures the performance of the Company over the reporting period while giving effect to all potential common shares that were dilutive and outstanding during the period. The denominator includes the weighted average number of basic shares and the number of additional common shares that would have been outstanding if the potential common shares that were dilutive had been issued, and is calculated using either the two-class, treasury stock or as if-converted method, whichever is most dilutive. Potential common shares are securities (such as options, convertible debt, Series A Participating Redeemable Preferred Units (“Series A Units”), Series B Redeemable Preferred Units (“Series B Units”), Series C Convertible Redeemable Preferred Units (“Series C Units”), Series D Redeemable Preferred Units (“Series D Units”) and common Operating Partnership units (“OP Units”)) that do not have a current right to participate in earnings of the Company but could do so in the future by virtue of their option, redemption or conversion right.

In computing the dilutive effect of convertible securities, net income is adjusted to add back any changes in earnings in the period associated with the convertible security. The numerator also is adjusted for the effects of any other non-discretionary changes in income or loss that would result from the assumed conversion of those potential common shares. In computing diluted earnings per common share, only potential common shares that are dilutive ~~(those~~(i.e. those that reduce earnings per common share) are included. For the three months ended ~~September~~June 30, ~~2017~~2018 there were no anti-dilutive options. For the three months ended

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and ~~2016,~~share data, unless otherwise stated

June 30, 2017, options to purchase approximately ~~45,438 and 95,031~~97,701 shares of common stock, ~~respectively,~~ and for the ~~nine~~six months ended ~~September~~June 30, ~~2017~~2018 and ~~2016,~~2017, options to purchase approximately ~~97,697~~37,113 and ~~84,919~~98,966 shares of common stock, respectively, were excluded from the computation of earnings per share as their effect would have been anti-dilutive.

For the purposes of computing the diluted impact of the potential exchange of the Preferred Operating Partnership units for common shares upon redemption, where the Company has the option to redeem in cash or shares and where the Company has stated the intent and ability to settle the redemption in shares, the Company divided the total value of the Preferred Operating Partnership units by the average share price for the period presented. The average share price for the three months ended ~~September~~June 30, 2018 and 2017 was $93.10 and ~~2016 was $77.84 and $84.41,~~$76.68, respectively, and for the ~~nine~~six months ended ~~September~~June 30, ~~2017~~2018 and ~~2016,~~2017, the average share price was ~~$76.67~~$88.71 and ~~$87.22,~~$76.08, respectively.

The following table presents the number of Preferred Operating Partnership units, and the potential common shares, that were excluded from the computation of earnings per share as their effect would have been anti-dilutive.

The Operating Partnership had ~~$49,384~~$11,550 of its 2.375% Exchangeable Senior Notes due 2033 (the “2013 Notes”) issued and outstanding as of ~~September~~June 30, ~~2017.~~2018. The 2013 Notes could potentially have a dilutive impact on the Company’s earnings per share calculations. The 2013 Notes are exchangeable by holders into shares of the Company’s common stock under certain circumstances per the terms of the indenture governing the 2013 Notes. The exchange price of the 2013 Notes was ~~$53.28~~$52.57 per share as of ~~September~~June 30, ~~2017,~~2018, and could change over time as described in the indenture. The Company has irrevocably agreed to pay only cash for the accreted principal amount of the 2013 Notes relative to its exchange obligations, but retained the right to satisfy the exchange obligation in excess of the accreted principal amount in cash and/or common stock. On July 5, 2018, the remaining principal amount of 2013 Notes was redeemed for $21,801 in cash.

The Operating Partnership had $575,000 of its 3.125% Exchangeable Senior Notes due 2035 (the “2015 Notes”) issued and outstanding as of ~~September~~June 30, ~~2017.~~2018. The 2015 Notes could potentially have a dilutive impact on the Company’s earnings per share calculations. The 2015 Notes are exchangeable by holders into shares of the Company’s common stock under certain circumstances per the terms of the indenture governing the 2015 Notes. The exchange price of the 2015 Notes was ~~$94.01~~$93.34 per

~~EXTRA SPACE STORAGE INC.~~

~~NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS~~ ~~(unaudited) (continued)~~

~~Amounts in thousands, except store and share data, unless otherwise stated~~

share as of ~~September~~June 30, ~~2017,~~2018, and could change over time as described in the indenture. The Company has irrevocably agreed to pay only cash for the accreted principal amount of the 2015 Notes relative to its exchange obligations, but retained the right to satisfy the exchange obligation in excess of the accreted principal amount in cash and/or common stock.

Although the Company has retained the right to satisfy the exchange obligation in excess of the accreted principal amount of the 2013 Notes and 2015 Notes in cash and/or common stock, Accounting Standards Codification (“ASC”) 260, “Earnings per Share,” requires an assumption that shares would be used to pay ~~such~~the exchange obligation in excess of the accreted principal amount, and requires that those shares be included in the Company’s calculation of weighted average common shares outstanding for the diluted earnings per share computation. For the three and ~~nine~~six months ended ~~September~~June 30, 2018 and 2017, 95,690 and ~~2016, 292,439 and 413,498~~356,000 shares, respectively, related to the 2013 Notes were included in the computation for diluted earnings per share. For the three and ~~nine~~six months ended ~~September~~June 30, ~~2017~~2018 and ~~2016,~~2017, no shares related to the 2015 Notes were included in the computation for diluted earnings per share as the exchange price exceeded the average per share price of the Company’s common stock during these periods.

For the purposes of computing the diluted impact on earnings per share of the potential exchange of Series A Units for common shares upon redemption, where the Company has the option to redeem in cash or shares and where the Company has stated the positive intent and ability to settle at least ~~$115,000~~$101,700 of the instrument in cash (or net settle a portion of the Series A Units against the related outstanding note receivable), only the amount of the instrument in excess of ~~$115,000~~$101,700 is considered in the calculation of shares contingently issuable for the purposes of computing diluted earnings per share as allowed by ASC

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

260-10-45-46. Accordingly, the number of shares included in the computation for diluted earnings per share related to the Series A Units is equal to the number of Series A Units outstanding, with no additional shares included related to the fixed ~~$115,000~~$101,700 amount.

The computation of earnings per common share was as follows for the periods presented:



	For the Three Months Ended June 30,						For the Six Months Ended June 30,
	2018			2017			2018			2017
Net income attributable to common stockholders	$	95,153		$	87,006		$	183,409		$	169,288
Earnings and dividends allocated to participating securities	(193		)	(207		)	(371		)	(403		)
Earnings for basic computations	94,960			86,799			183,038			168,885
Earnings and dividends allocated to participating securities	—			—			371			—
Income allocated to noncontrolling interest - Preferred Operating Partnership Units and Operating Partnership Units	5,271			4,965			10,211			10,285
Fixed component of income allocated to noncontrolling interest - Preferred Operating Partnership (Series A Units)	(572		)	(704		)	(1,144		)	(1,975		)
Net income for diluted computations	$	99,659		$	91,060		$	192,476		$	177,195

Weighted average common shares outstanding:
Average number of common shares outstanding - basic	125,874,130			125,673,156			125,823,581			125,639,480
OP Units	5,651,878			5,574,364			5,657,592			5,585,218
Series A Units	875,480			875,480			875,480			875,480
Unvested restricted stock awards included for treasury stock method	—			—			256,733			—
Shares related to exchangeable senior notes and dilutive stock options	371,284			660,402			379,348			659,176
Average number of common shares outstanding - diluted	132,772,772			132,783,402			132,992,734			132,759,354
Earnings per common share
Basic	$	0.75		$	0.69		$	1.45		$	1.34
Diluted	$	0.75		$	0.69		$	1.45		$	1.33

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

5. STORE ACQUISITIONS AND DISPOSITIONS

The ~~computation~~following table shows the Company’s acquisitions of ~~earnings per common share was as follows~~stores for the ~~periods presented:~~three and six months ended June 30, 2018 and 2017. The table excludes purchases of raw land or improvements made to existing assets. All acquisitions are considered asset acquisitions under ASU 2017-01, "Business Combinations (Topic 805): Clarifying the Definition of a Business."

For the Three Months Ended September 30, For the Nine Months Ended September 30,
2017 2016 2017 2016
Net income attributable to common stockholders $ 93,764
$ 118,088
$ 263,052
$ 283,724
Earnings and dividends allocated to participating securities (191 ) (248 ) (595 ) (616 )
Earnings for basic computations 93,573
117,840
262,457
283,108
Earnings and dividends allocated to participating securities 191
—
595
—
Income allocated to noncontrolling interest - Preferred Operating Partnership (Series A Units) and Operating Partnership 5,163
7,776
15,448
17,926
Fixed component of income allocated to noncontrolling interest - Preferred Operating Partnership (Series A Units) (572 ) (1,271 ) (2,547 ) (3,814 )
Net income for diluted computations $ 98,355
$ 124,345
$ 275,953
$ 297,220

Weighted average common shares outstanding:
Average number of common shares outstanding - basic 125,717,517
125,752,291
125,665,787
125,244,761
OP Units 5,590,231
5,534,350
5,586,908
5,557,723
Series A Units 875,480
875,480
875,480
875,480
Series D Units —
814,435
—
—
Unvested restricted stock awards included for treasury stock method 280,484
—
288,831
—
Shares related to exchangeable senior notes and dilutive stock options 580,761
786,916
591,616
798,727
Average number of common shares outstanding - diluted 133,044,473
133,763,472
133,008,622
132,476,691
Earnings per common share
Basic $ 0.74
$ 0.94
$ 2.09
$ 2.26
Diluted $ 0.74
$ 0.93
$ 2.07
$ 2.24



		Consideration Paid																	Total
Quarter	Number of Stores	Total		Cash Paid		Loan Assumed		Non- controlling interests		Investments in Real Estate Ventures			Net Liabilities/ (Assets) Assumed			Value of OP Units Issued		Number of OP Units Issued	Real estate assets
Q2 2018⁽¹⁾	17	$	237,284	$	148,648	$	87,500	$	—	$	(1,024	)	$	283		$	1,877	21,768	$	237,284
Q1 2018	5	70,787		70,171		—		—		489			127			—		—	70,787
	22	$	308,071	$	218,819	$	87,500	$	—	$	(535	)	$	410		$	1,877	21,768	$	308,071

Q2 2017	3	$	34,641	$	16,608	$	9,463	$	1,827	$	—		$	(67	)	$	6,810	272,400	$	34,641
Q1 2017	2	25,556		25,541		—		—		—			15			—		—	25,556
	5	$	60,197	$	42,149	$	9,463	$	1,827	$	—		$	(52	)	$	6,810	272,400	$	60,197

⁽¹⁾ Store acquisitions during the three and six months ended June 30, 2018 include the acquisition of 15 stores that had been owned by joint ventures in which the Company held equity interests. No gain or loss was recognized as a result of these acquisitions.

Net Investments in unconsolidated real estate ventures and Cash distributions in unconsolidated real estate ventures consist of the following:



	Number of stores	Equity ownership %	Excess Profit Participation %	June 30,			December 31,
	Number of stores	Equity ownership %	Excess Profit Participation %	2018			2017
WICNN JV LLC	7	10%	25%	$	27,275		$	—
VRS Self Storage, LLC	16	45%	54%	18,613			19,467
PRISA Self Storage LLC	85	4%	4%	9,410			9,638
Extra Space West Two LLC	5	5%	40%	3,869			3,939
ESS Bristol Investments LLC	7	10%	28%	1,944			1,258
Extra Space West One LLC	7	5%	40%	(976		)	(900		)
WCOT Self Storage LLC	—	5%	20%	—			(357		)
Extra Space Northern Properties Six LLC	10	10%	35%	(1,477		)	(1,279		)
Storage Portfolio II JV LLC	36	10%	30%	(3,615		)	(3,140		)
Storage Portfolio I LLC	24	34%	49%	(37,517		)	11,495
Other minority owned stores	14	10-50%	19-50%	36,293			29,970
Net Investments in and Cash distributions in unconsolidated real estate ventures	211			$	53,819		$	70,091

Investments in unconsolidated real estate ventures represent the Company's noncontrolling interests in properties. The Company accounts for these investments using the equity method of accounting. The Company initially records these investments at cost and subsequently adjusts for net equity in income or loss, which it allocates in accordance with the provisions of the applicable partnership or joint venture agreement, cash contributions and distributions.

In these joint ventures, the Company and the joint venture partner generally receive a preferred return on their invested capital. To the extent that cash/profits in excess of these preferred returns are generated through operations or capital transactions, the Company would receive a higher percentage of the excess cash/profits than its equity interest.

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

The ~~following table shows~~Company separately reports investments with net equity less than zero in Cash distributions in unconsolidated real estate ventures in the ~~Company’s acquisitions~~condensed consolidated balance sheets. The net equity of certain joint ventures is less than zero because distributions have exceeded the Company's investment in and share of income from these joint ventures. This is generally the result of financing distributions or operating ~~stores~~distributions that are usually greater than net income, as net income includes non‑cash charges for ~~the nine months ended September 30, 2017. The table excludes purchases of raw land or improvements made to existing assets.~~

Consideration Paid Total
Property Location Number of Stores Date of Acquisition Total Cash Paid Loan Assumed Non- controlling interests Net Liabilities/(Assets) Assumed Value of OP Units Issued Number of OP Units Issued Real estate assets
Georgia 1 9/1/2017 $ 4,246
$ 4,220
$ —
$ —
$ 26
$ —
—
$ 4,246
Florida 1 8/4/2017 9,047
7,058
—
—
(11 ) 2,000
25,520
9,047
North Carolina 1 7/13/2017 8,422
8,426
—
—
(4 ) —
—
8,422
Virginia 1 7/13/2017 10,251
10,215
—
—
36
—
—
10,251
Florida 1 6/12/2017 11,100
4,270
—
—
20
6,810
272,400
11,100
Florida 1 4/25/2017 7,377
7,400
—
—
(23 ) —
—
7,377
Pennsylvania 1 4/11/2017 16,164
4,938
9,463
1,827
(64 ) —
—
16,164
Illinois 1 2/1/2017 9,028
9,020
—
—
8
—
—
9,028
Georgia 1 1/6/2017 16,528
16,521
—
—
7
—
—
16,528
2017 Totals 9
$ 92,163
$ 72,068
$ 9,463
$ 1,827
$ (5 ) $ 8,810
297,920
$ 92,163

~~Store Dispositions~~depreciation and amortization while distributions do not.

On ~~September 13, 2017,~~May 18, 2018, the Company ~~closed on the sale of~~entered into a ~~parcel of land~~new joint venture, WICNN JV LLC. On June 19, 2018, WICNN JV LLC purchased seven stores located in Connecticut, New ~~York that had been classified as held for sale for $19,000 in cash. This parcel of land had been written down to its fair value less selling costs during the six months ended June 30, 2017,~~Jersey and ~~therefore no additional gain or loss was recorded related to this sale at the time of closing.~~

~~On July 26, 2016,~~Wisconsin, and the Company ~~closed on~~made an initial contribution of $4,505 and received a 10% equity interest in the ~~sale of one operating store located in Indiana that had been classified as held for sale for $4,447 in cash.~~joint venture. The Company ~~recognized no gain or loss related to this disposition.~~also made a preferred equity contribution of $22,734. The Company receives an annual return of 8.0% on its preferred equity, which has a distribution preference over common equity.

On April ~~20, 2016,~~26, 2018, the Company ~~closed on~~purchased its joint venture partner's 95% interest in the ~~sale~~WCOT Self Storage LLC joint venture, which owned 14 stores. The partner's interest was purchased for $115,797 and the existing joint venture loan of ~~seven operating stores located in Ohio and Indiana that had been classified as held for sale for $17,555 in cash. The Company recognized a gain of $11,265 related~~$87,500. Subsequent to ~~this disposition.~~

On April 1, 2016, the Company disposed of a single store in Texas in exchange for 85,452 of our OP Units valued at $7,689. The Operating Partnership has canceled the OP Units received in this disposition. The Company recognized a gain of $93 related to this disposition.

~~Losses on Earnout from Prior Acquisition~~

~~In December 2014, the Company acquired a portfolio of five stores located in New Jersey and Virginia. As part of~~ this acquisition, the Company ~~agreed to make an additional cash payment to~~owned 100% of the ~~sellers if~~joint venture and the ~~acquired~~related stores, ~~exceeded a specified amount~~which were consolidated as of ~~net operating income for the years ending December 31, 2015 and 2016. At the acquisition date,~~June 30, 2018.

On February 2, 2018, the Company ~~recorded an estimated liability related~~and Teachers REA II LLC ("TIAA") entered into the "Third Amendment to ~~this earnout provision.~~Amended and Restated Limited Liability Company Agreement of Storage Portfolio I LLC" (the "Amendments"). The ~~operating income~~Amendments were deemed effective as of ~~these stores during~~January 1, 2018. Under the ~~earnout period was higher than expected, resulting~~Amendments, the Company's capital percentage in ~~an increase in~~Storage Portfolio I LLC ("SP I") increased from 25.0% to 34.0%, and its excess profit participation percentage increased from 40.0% to 49.0%, among other changes. Additionally, SPI refinanced its mortgage loan and the ~~estimate~~Company received a financing distribution of ~~the amount due to the sellers of $1,544,~~$47,944, which was recorded as a ~~loss and included in gain (loss) on real estate transactions, earnout from prior acquisition and impairment of real estate~~reduction in the ~~Company’s condensed consolidated statements~~Company's investment in SP I. The Company continues to account for its investment in SP I under the equity method of ~~operations for the nine months ended September 30, 2016.~~

The Operating Partnership has three wholly-owned unconsolidated subsidiaries (“Trust,” “Trust II” and “Trust III,” together, the “Trusts”) that have issued trust preferred securities to third parties and common securities to the Operating Partnership. The proceeds from the sale of the preferred and common securities were loaned in the form of notes to the Operating Partnership. The Trusts are ~~VIEs~~variable interest entities ("VIEs") because the holders of the equity investment at risk (the trust preferred securities) do not have the power to direct the activities of the entities that most significantly affect the entities’ economic performance because of their lack of voting or similar rights. Because the Operating Partnership’s investment in the Trusts’ common securities was financed directly

~~EXTRA SPACE STORAGE INC.~~

~~NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS~~ ~~(unaudited) (continued)~~

~~Amounts in thousands, except store and share data, unless otherwise stated~~

by the Trusts as a result of its loan of the proceeds to the Operating Partnership, that investment is not considered an equity investment at risk. The Operating Partnership’s investment in the Trusts is not a variable interest because equity interests are variable interests only to the extent that the investment is considered to be at risk, and therefore the Operating Partnership cannot be the primary beneficiary of the Trusts. Since the Company is not the primary beneficiary of the Trusts, they have not been consolidated. A debt obligation has been recorded in the form of notes for the proceeds as discussed above, which are owed to the Trusts. The Company has also included its investment in the Trusts’ common securities in other assets on the condensed consolidated balance sheets.

The Company has not provided financing or other support during the periods presented to the Trusts that it was not previously contractually obligated to provide. The Company’s maximum exposure to loss as a result of its involvement with the Trusts is equal to the total amount of the notes discussed above less the amounts of the Company’s investments in the Trusts’ common securities. The net amount is equal to the notes payable that the Trusts owe to third parties for their investments in the Trusts’ preferred securities.

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

Following is a tabular comparison of the assets and liabilities the Company has recorded as a result of its involvement with the Trusts to the maximum exposure to loss the Company is subject to as a result of such involvement as of ~~September~~June 30, ~~2017:~~2018:

The Company had no consolidated VIEs during the ~~nine~~three and six months ended ~~September~~June 30, ~~2017.~~

The Company is exposed to certain risks arising from both its business operations and economic conditions. The Company principally manages its exposures to a wide variety of business and operational risks through management of its core business activities. The Company manages economic risks, including interest rate, liquidity and credit risk, primarily by managing the amount, sources and duration of its debt funding and by using derivative financial instruments. Specifically, the Company enters into derivative financial instruments to manage exposure that arises from business activities that result in the receipt or payment of future known and uncertain cash amounts, the value of which are determined by interest rates. The Company’s derivative financial instruments are used to manage differences in the amount, timing and duration of the Company’s known or expected cash receipts and its known or expected cash payments principally related to the Company’s investments and borrowings.

The Company’s objectives in using interest rate derivatives are to add stability to interest expense and to manage its exposure to interest rate movements. To accomplish these objectives, the Company primarily uses interest rate swaps as part of its interest rate risk management strategy. Interest rate swaps designated as cash flow hedges involve the receipt of variable amounts from a counterparty in exchange for the Company making fixed-rate payments over the life of the agreements without exchange of the underlying notional amount.

The effective portion of changes in the fair value of derivatives designated and that qualify as cash flow hedges is recorded in accumulated other comprehensive income (“OCI”) and is subsequently reclassified into earnings in the period that the hedged forecasted transaction affects earnings. A portion of these changes is excluded from accumulated other comprehensive income as it is allocated to noncontrolling interests. During the three and ~~nine~~six months ended ~~September~~June 30, ~~2017~~2018 and ~~2016,~~2017, such derivatives were used to hedge the variable cash flows associated with existing variable-rate debt. In the coming 12 months, the Company estimates that ~~an additional $1,513~~$15,968 will be reclassified as ~~an increase~~a decrease to interest expense.

The Company held 29 derivative financial instruments which had a total combined notional amount of $2,165,973 as of June 30, 2018.

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

~~The Company held 30 derivative financial instruments which had a total combined notional amount of $2,255,018 as of September 30, 2017.~~

The table below presents the fair value of the Company’s derivative financial instruments as well as their classification on the condensed consolidated balance sheets:

The ~~tables~~table below ~~present~~presents the effect of the Company’s derivative financial instruments on the condensed consolidated statements of operations for the periods presented. No tax effect has been presented as the derivative instruments are held by the Company:

The Company has agreements with some of its derivative counterparties that contain provisions pursuant to which the Company could be declared in default of its derivative obligations if the Company defaults on any of its indebtedness, including default where repayment of the indebtedness has not been accelerated by the lender.

The Company also has an agreement with some of its derivative counterparties that incorporates the loan covenant provisions of the Company’s indebtedness with a lender affiliate of the derivative counterparty. Failure to comply with the loan covenant provisions would result in the Company being in default on any derivative instrument obligations covered by the agreement.

As of ~~September~~June 30, ~~2017,~~2018, the fair value of derivatives in a net liability position, which includes accrued interest but excludes any adjustment for nonperformance risk, related to these agreements was ~~$1,257.~~immaterial. As of ~~September~~June 30, ~~2017,~~2018, the Company had not posted any collateral related to these agreements. If the Company had breached any of these provisions as of ~~September~~June 30, ~~2017,~~2018, it could have been required to cash settle its obligations under the agreements at their termination ~~value of $1,620, including accrued interest.~~value.

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

In September 2015, the Operating Partnership issued $575,000 of its 3.125% Exchangeable Senior Notes due 2035. Costs incurred to issue the 2015 Notes were approximately $11,992, consisting primarily of a 2.0% underwriting fee. These costs are being amortized as an adjustment to interest expense over five years, which represents the estimated term based on the first available redemption date, and are included in exchangeable senior notes, net, in the condensed consolidated balance sheets. The 2015 Notes are general unsecured senior obligations of the Operating Partnership and are fully guaranteed by the Company. Interest is payable on April 1 and October 1 of each year beginning April 1, 2016, until the maturity date of October 1, 2035. The 2015 Notes bear interest at 3.125% per annum and contain an exchange settlement feature, which provides that the 2015 Notes may, under certain circumstances, be exchangeable for cash (for the principal amount of the 2015 Notes) and, with respect to any excess exchange value, for cash, shares of the Company’s common stock, or a combination of cash and shares of the Company’s common stock, at the Company’s option. The exchange rate of the 2015 Notes as of ~~September~~June 30, ~~2017~~2018 was approximately ~~10.64~~10.71 shares of the Company’s common stock per $1,000 principal amount of the 2015 Notes.

The Operating Partnership may redeem the 2015 Notes at any time to preserve the Company’s status as a REIT. In addition, on or after October 5, 2020, the Operating Partnership may redeem the 2015 Notes for cash, in whole or in part, at 100% of the principal amount plus accrued and unpaid interest, upon at least 30 days but not more than 60 days prior written notice to the holders of the 2015 Notes. The holders of the 2015 Notes have the right to require the Operating Partnership to repurchase the 2015 Notes for cash, in whole or in part, on October 1 of the years 2020, 2025 and 2030 (unless the Operating Partnership has called the 2015 Notes for redemption), and upon the occurrence of certain designated events, in each case for a repurchase price equal to 100% of the principal amount of the 2015 Notes plus accrued and unpaid interest. Certain events are considered “Events of Default,” as defined in the indenture governing the 2015 Notes, which may result in the accelerated maturity of the 2015 Notes.

On June 21, 2013, the Operating Partnership issued $250,000 of its 2.375% Exchangeable Senior Notes due 2033 at a 1.5% discount, or $3,750. Costs incurred to issue the 2013 Notes were approximately $1,672. These costs are being amortized as an adjustment to interest expense over five years, which represents the estimated term based on the first available redemption date, and are included in exchangeable senior notes, net, in the condensed consolidated balance sheets. The 2013 Notes are general unsecured senior obligations of the Operating Partnership and are fully guaranteed by the Company. Interest is payable on January 1 and July 1 of each year beginning January 1, 2014, until the maturity date of July 1, 2033. The 2013 Notes bear interest at 2.375% per annum and contain an exchange settlement feature, which provides that the 2013 Notes may, under certain circumstances, be exchangeable for cash (for the principal amount of the 2013 Notes) and, with respect to any excess exchange value, for cash, shares of the Company’s common stock, or a combination of cash and shares of the Company’s common stock, at the Company’s option. The exchange rate of the 2013 Notes as of ~~September~~June 30, ~~2017~~2018 was approximately ~~18.77~~19.02 shares of the Company’s common stock per $1,000 principal amount of the 2013 Notes.

The Operating Partnership may redeem the 2013 Notes at any time to preserve the Company’s status as a REIT. In addition, on or after July 5, 2018, the Operating Partnership may redeem the 2013 Notes for cash, in whole or in part, at 100% of the principal amount plus accrued and unpaid interest, upon at least 30 days but not more than 60 days prior written notice to the holders of the 2013 Notes. The holders of the 2013 Notes have the right to require the Operating Partnership to repurchase the 2013 Notes for cash, in whole or in part, on July 1 of the years 2018, 2023 and 2028, and upon the occurrence of certain designated events, in each case for a repurchase price equal to 100% of the principal amount of the 2013 Notes plus accrued and unpaid interest. Certain events are considered “Events of Default,” as defined in the indenture governing the 2013 Notes, which may result in the accelerated maturity of the 2013 Notes.

Additionally, the 2013 Notes and the 2015 Notes can be exchanged during any calendar quarter, if the last reported sale price of the common stock of the Company is greater than or equal to 130% of the exchange price for at least 20 trading days during a period of 30 consecutive trading days ending on the last trading day of the immediately preceding calendar quarter. The price of the Company’s common stock exceeded 130% of the exchange price for the required time period for the 2013 Notes during the quarter ended ~~September~~June 30, ~~2017.~~2018. Therefore, holders of the 2013 Notes may elect to exchange such notes during the quarter ending ~~December 31, 2017.~~September 30, 2018. The price of the Company’s common stock did not exceed 130% of the exchange price for the required time period for the 2015 Notes during the quarter ended ~~September~~June 30, ~~2017.~~2018.

GAAP requires entities with convertible debt instruments that may be settled entirely or partially in cash upon conversion to separately account for the liability and equity components of the instrument in a manner that reflects the issuer’s economic interest cost. The Company therefore accounts for the liability and equity components of the 2013 Notes and 2015 Notes

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

~~interest cost. The Company therefore accounts for the liability and equity components of the 2013 Notes and 2015 Notes~~ separately. The equity components are included in paid-in capital in stockholders’ equity in the condensed consolidated balance sheets, and the value of the equity components are treated as original issue discount for purposes of accounting for the debt components. The discounts are being amortized as interest expense over the remaining period of the debt through its first redemption date: July 1, 2018 for the 2013 Notes, and October 1, 2020 for the 2015 Notes. The effective interest rate on the liability components of both the 2013 Notes and the 2015 Notes is 4.0%, which approximated the market rate of interest of similar debt without exchange features (i.e. nonconvertible debt) at the time of issuance.

Information about the Company’s 2013 Notes and 2015 Notes, including the total carrying amounts of the equity components, the principal amounts of the liability components, the unamortized discounts and the net carrying amounts was as follows for the periods indicated:

The amount of interest cost recognized relating to the contractual interest rates and the amortization of the discounts on the liability components of the Notes were as follows for the periods indicated:

Repurchases of 2013 Notes

During ~~July and August 2017,~~the six months ended June 30, 2018, the Company repurchased a total principal amount of ~~$13,786~~$37,709 of the 2013 Notes. The Company paid cash of ~~$19,853~~$58,469 for the total of the principal amount and the exchange value in excess of the principal amount. On July 5, 2018, the Company redeemed all remaining outstanding 2013 Notes, including the principal amount and the exchange value in excess of the principal for $21,801 in cash.

The Company allocated the value of the consideration paid to repurchase the 2013 Notes (1) to the extinguishment of the liability component and (2) to the reacquisition of the equity component. The amount allocated to the extinguishment of the liability component is equal to the fair value of that component immediately prior to extinguishment. The difference between the consideration attributed to the extinguishment of the liability component and the sum of (a) the net carrying amount of the repurchased liability component, and (b) the related unamortized debt issuance costs, is recognized as a gain on debt extinguishment. The remaining settlement consideration is allocated to the reacquisition of the equity component of the repurchased 2013 Notes and recognized as a reduction of stockholders’ equity.

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

Information about the repurchases is as follows:

On May 6, 2016, the Company filed its current $400,000 "at the market" equity program with the Securities and Exchange Commission using a ~~new~~ shelf registration statement on Form S-3, and entered into separate equity distribution agreements with five sales agents. Under the terms of the current equity distribution agreements, the Company may from time to time offer and sell shares of common stock, up to the aggregate offering price of $400,000, through its sales agents.

During the three and ~~nine~~six months ended ~~September~~June 30, ~~2017,~~2018, the Company did not issue any shares and had $349,375 available for issuance under the existing equity distribution agreements.

Subsequent to quarter end, the Company sold 343,251 shares of common stock under its "at the market" equity program at an average price of $99.75 per share, resulting in net proceeds of $33,897.

Classification of Noncontrolling Interests

GAAP requires a company to present ownership interests in subsidiaries held by parties other than the company in the consolidated financial statements within the equity section, but separate from the company’s equity. It also requires the amount of consolidated net income attributable to the parent and to the noncontrolling interest to be clearly identified and presented on the face of the consolidated statement of operations and requires changes in ownership interest to be accounted for similarly as equity transactions. If noncontrolling interests are determined to be redeemable, they are to be carried at their redemption value as of the balance sheet date and reported as temporary equity.

The Company has evaluated the terms of the Operating Partnership’s preferred units and classifies the noncontrolling interest represented by such preferred units as stockholders’ equity in the accompanying condensed consolidated balance sheets. The Company will periodically evaluate individual noncontrolling interests for the ability to continue to recognize the noncontrolling interest as permanent equity in the condensed consolidated balance sheets. Any noncontrolling interests that fail to qualify as permanent equity will be reclassified as temporary equity and adjusted to the greater of (1) the carrying amount and (2) the redemption value as of the end of the period in which the determination is made.

~~Series A Participating Redeemable Preferred Units~~

On June 15, 2007, the Operating Partnership entered into a Contribution Agreement with various limited partnerships affiliated with AAAAA Rent-A-Space to acquire ten stores in exchange for 989,980 Series A Units of the Operating Partnership. The stores are located in California and Hawaii.

The partnership agreement of the Operating Partnership (as amended, the “Partnership Agreement”) provides for the designation and issuance of the Series A Units. The Series A Units will have priority over all other partnership interests of the Operating Partnership with respect to distributions and liquidation.

Under the Partnership Agreement, Series A Units in the amount of $115,000 bear a fixed priority return of 2.3% and have a fixed liquidation value of $115,000. The remaining balance participates in distributions with, and has a liquidation value equal

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

As of June 30, 2018, the noncontrolling interests represented by Operating Partnership preferred units consisted of the following:



Series A Units	875,480
Series B Units	1,676,087
Series C Units	704,016
Series D Units	3,682,521

At June 30, 2018 and December 31, 2017, the noncontrolling interests represented by the Preferred Operating Partnership Units qualified for classification as permanent equity on the Company's condensed consolidated balance sheets. The partnership agreement of the Operating Partnership (as amended, the "Partnership Agreement") provides for the designation and issuance of the OP Units.

Series A Participating Redeemable Preferred Units

The Series A Units were issued in June 2007. Series A Units in the amount of $101,700 bear a fixed priority return of 2.3% and originally had a fixed liquidation value of $115,000. The remaining balance participates in distributions with, and has a liquidation value equal to that of the OP Units. The Series A Units are redeemable at the option of the holder, which redemption obligation may be satisfied, at the Company’s option, in cash or shares of its common stock. As a result of the redemption of 114,500 Series A Units in October 2014, the remaining fixed liquidation value was reduced to $101,700. On April 18, 2017, the ~~holders~~holder of the Series A Units and the Operating Partnership agreed to reduce the fixed priority return on the Series A Units from 5.0% to 2.3% in exchange for a reduction in the interest rate of the related loan, as more fully described below.

The Partnership Agreement provides for the designation and issuance of the Series A Units. The Series A Units have priority over all other partnership interests of the Operating Partnership with respect to distributions and liquidation.

On June 25, 2007, the Operating Partnership loaned the ~~holders~~holder of the Series A Units $100,000. ~~The note receivable bears interest at 2.1%.~~ On April 18, 2017, a loan amendment was signed modifying the maturity date of the loan to the later of the death of the Series A Unit holder or his ~~spouse. The loan amendment~~spouse and also ~~lowered~~lowering the interest rate of the loan from 4.9% to 2.1%. The loan amendment was determined to be a loan modification under GAAP, and therefore no change in value was recognized. The loan is secured by the borrower’s Series A Units. The holders of the Series A Units could redeem up to 114,500 Series A Units prior to the maturity date of the loan. If any redemption in excess of 114,500 Series A Units occurs prior to the maturity date, the holder of the Series A Units is required to repay the loan as of the date of that redemption. On October 3, 2014, the holders of the Series A Units redeemed 114,500 Series A Units for $4,794 in cash and 280,331 shares of common stock. No ~~additional~~future redemption of Series A Units can be made ~~without repayment of~~unless the ~~loan.~~loan secured by the Series A Units is also repaid. The Series A Units are shown on the balance sheet net of the $100,000 loan because the borrower under the loan receivable is also the holder of the Series A Units.

Series B Redeemable Preferred Units

~~On April 3, 2014, the Operating Partnership completed the purchase of a store located in Georgia. This store was acquired in exchange for $15,158 of cash and 333,360 Series B Units valued at $8,334.~~

On August 29, 2013, the Operating Partnership completed the purchase of 19 out of 20 stores affiliated with All Aboard Mini Storage, all of which are located in California. On September 26, 2013, the Operating Partnership completed the purchase of the remaining store. These stores were acquired in exchange for $100,876 of cash (including $98,960 of debt assumed and immediately defeased at closing), 1,342,727 Series B Units valued at $33,568, and 1,448,108 OP Units valued at $62,341.

The Partnership Agreement provides for the designation and issuance of the Series B Units. The Series B Units rank junior to the Series A Units, on parity with the Series C Units and Series D Units, and senior to all other partnership interests of the Operating Partnership with respect to distributions and liquidation.

The ~~outstanding~~ Series B Units were issued in 2013 and 2014 and have a liquidation value of $25.00 per unit for a fixed liquidation value of $41,902. Holders of the Series B Units receive distributions at an annual rate of 6.0%. These distributions are cumulative. The Series B Units became redeemable at the option of the holder on the first anniversary of the date of issuance, which redemption obligation may be satisfied at the Company’s option in cash or shares of its common stock.

Series C Convertible Redeemable Preferred Units

The Company completed the purchase of twelve stores in California between December 2013 and May 2014. The Company previously held 35% interests in five of these stores and a 40% interest in one store through six separate joint ventures. These stores were acquired in exchange for a total of approximately $45,722 of cash, the assumption of $37,532 in existing debt, and the issuance of 704,016 Series C Units valued at $30,960.

The Partnership Agreement provides for the designation and issuance of the Series C Units. The Series C Units rank junior to the Series A Units, on parity with the Series B Units and Series D Units, and senior to all other partnership interests of the Operating Partnership with respect to distributions and liquidation.

The ~~outstanding~~ Series C Units were issued in 2013 and 2014 and have a liquidation value of $42.10 per unit for a fixed liquidation value of $29,639. From issuance to the fifth anniversary of issuance, each Series C Unit holder will receive quarterly distributions equal to the quarterly distribution per OP Unit plus $0.18. Beginning on the fifth anniversary of issuance, each Series C Unit holder will receive a fixed quarterly distribution equal to the aggregate quarterly distribution payable in respect of such Series C Unit

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

during the four quarters immediately preceding the fifth anniversary of issuance, divided by four. These distributions are cumulative. The Series C Units became redeemable at the option of the holder one year from the date of issuance, which redemption obligation may be satisfied at the Company’s option in cash or shares of its common stock. The Series C Units are convertible into OP Units at the option of the holder at a rate of 0.9145 OP Units per Series C Unit converted. This conversion option expires upon the fifth anniversary of the date of issuance.

~~EXTRA SPACE STORAGE INC.~~

~~NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS~~ ~~(unaudited) (continued)~~

~~Amounts in thousands, except store and share data, unless otherwise stated~~

In December 2014, the Operating Partnership loaned certain holders of the Series C Units $20,230. The notes receivable, which are collateralized by the Series C Units, bear interest at 5.0% per annum and mature on December 15, 2024. The Series C Units are shown on the balance sheet net of the loan balance of $19,735 as of June 30, 2018 and $20,230 ~~loan~~as of December 31, 2017, because the borrower under the loan receivable is also the holder of the Series C Units.

Series D Redeemable Preferred Units

On June 12, 2017, the Operating Partnership completed the acquisition of a store located in Florida. This store was acquired in exchange for $4,270 in cash and 272,400 Series D-5 Preferred Units ("D-5 Units") valued at $6,810.

On November 8, 2016, the Operating Partnership completed the acquisition of a store located in Illinois. This store was acquired in exchange for 486,244 Series D-4 Preferred Units ("D-4 Units") valued at $12,156.

On June 10, 2016, the Operating Partnership completed the acquisition of four stores located in Illinois. These stores were acquired in exchange for 2,201,467 Series D-3 Preferred Units ("D-3 Units") valued at $55,037.

In December 2014, the Operating Partnership completed the acquisition of a store located in Florida. This store was acquired in exchange for $5,621 in cash and 548,390 Series D-1 Preferred Units ("D-1 Units," and together with the D-3 Units, D-4 Units and D-5 Units, "Series D Units") valued at $13,710.

The Partnership Agreement provides for the designation and issuance of the Series D Units. The Series D Units rank junior to the Series A Units, on parity with the Series B Units and Series C Units, and senior to all other partnership interests of the Operating Partnership with respect to distributions and liquidation.

The Series D Units have been issued at various times from 2014 to 2017. The Series D Units have a liquidation value of $25.00per unit, for a fixed liquidation value of ~~$87,713.~~$92,064. Holders of the Series D Units receive distributions at an annual rate between ~~3.5% to~~3.0% and 5.0%. These distributions are cumulative. The Series D Units become redeemable at the option of the holder on the first anniversary of the date of issuance, which redemption obligation may be satisfied at the Company’s option in cash or shares of its common stock. In addition, certain of the ~~D-3~~Series D Units are ~~convertible into~~exchangeable for common OP Units at the option of the holder until the tenth anniversary of the date of issuance, with the number of OP Units to be issued equal to $25.00 per ~~D-3~~Series D Unit, divided by the value of a share of common stock as of the exchange date.


~~11.~~12.	NONCONTROLLING INTEREST IN OPERATING PARTNERSHIP

The Company’s interest in its stores is held through the Operating Partnership. ESS Holding Business Trust I, a wholly-owned subsidiary of the Company, is the sole general partner of the Operating Partnership. ESS Holding Business Trust II, also a wholly-owned subsidiary of the Company, is a limited partner of the Operating Partnership. Between its general partner and limited partner interests, the Company held a ~~91.1%~~90.9% ownership interest in the Operating Partnership as of ~~September~~June 30, ~~2017.~~2018. The remaining ownership interests in the Operating Partnership (including Preferred Operating Partnership units) of ~~8.9%~~9.1% are held by certain former owners of assets acquired by the Operating Partnership.

The noncontrolling interest in the Operating Partnership represents OP Units that are not owned by the Company. ~~In conjunction with~~OP Units are redeemable at the ~~formation~~option of the ~~Company, and as a result of subsequent acquisitions, certain persons and entities contributing interests~~holder, which redemption may be satisfied at the Company's option in stores to the Operating Partnership received limited partnership interests in the form of OP Units. Limited partners who received OP Units in the formation transactions or in exchange for contributions for interests in stores have the right to require the Operating Partnership to redeem part or all of their OP Units for cash, based upon the fair market value of an equivalent number of shares of the Company’s common stock (based on the ten-day average trading price) at the time of the ~~redemption. Alternatively, the Company may, in its sole discretion, elect to acquire those OP Units in exchange for~~redemption, or shares of ~~its~~the Company's common stock on a one-for-one basis, subject to anti-dilution adjustments provided in the Partnership Agreement. ~~The~~As of June 30, 2018, the ten-day average closing price of the Company's common stock ~~price at September 30, 2017~~ was ~~$79.26~~$99.22 and there were ~~5,599,662~~5,646,138 OP Units outstanding. Assuming that all of the OP Unit holders exercised their right to redeem all of their OP Units on ~~September~~June 30, ~~2017~~2018 and the Company elected to pay the OP Unit holders cash, the Company would have paid ~~$443,829~~$560,210 in cash consideration to redeem the units.

~~On August 4, 2017,~~OP Unit activity is summarized as follows for the ~~Company purchased one store located in Florida. As part of the consideration for this acquisition, 25,520 OP Units were issues with a total value of $2,000.~~

~~During the three months ended September 30, 2017, no OP Units were redeemed. During the nine months ended September 30, 2017, 33,896 OP Units were redeemed for $2,510 in cash.~~periods presented:

~~EXTRA SPACE STORAGE INC.~~

~~NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS~~ ~~(unaudited) (continued)~~

~~Amounts in thousands, except store and share data, unless otherwise stated~~



	For the Six Months Ended June 30,
	2018		2017
OP Units redeemed for common stock	10,000		—
OP Units redeemed for cash	30,000		33,896
Cash paid for OP Units redeemed	$	2,558	$	2,510
OP Units issued in conjunction with acquisitions	21,768		—
Value of OP Units issued in conjunction with acquisitions	$	1,877	$	—

GAAP requires a company to present ownership interests in subsidiaries held by parties other than the company in the consolidated financial statements within the equity section, but separate from the company’s equity. It also requires the amount of consolidated net income attributable to the parent and to the noncontrolling interest to be clearly identified and presented on the face of the consolidated statement of operations, and requires changes in ownership interest to be accounted for similarly as

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

equity transactions. If noncontrolling interests are determined to be redeemable, they are to be carried at their redemption value as of the balance sheet date and reported as temporary equity.

The Company has evaluated the terms of the OP Units and classifies the noncontrolling interest represented by the OP Units as stockholders’ equity in the accompanying condensed consolidated balance sheets. The Company will periodically evaluate individual noncontrolling interests for the ability to continue to recognize the noncontrolling amount as permanent equity in the condensed consolidated balance sheets. Any noncontrolling interests that fail to qualify as permanent equity will be reclassified as temporary equity and adjusted to the greater of (1) the carrying amount and (2) the redemption value as of the end of the period in which the determination is made.


~~12.~~13.	OTHER NONCONTROLLING INTERESTS

Other noncontrolling interests represent the ownership interests of a third ~~party~~parties in two consolidated joint ventures as of ~~September~~June 30, ~~2017.~~2018. One joint venture owns two operating stores in Texas and an operating store in ~~Texas,~~Colorado, and the other joint venture owns ~~a store~~two development properties in ~~Pennsylvania.~~Pennsylvania and New Jersey. The voting interests of the third-party owners are between ~~20.0%~~5.0% and ~~27.0%~~20.0%.


~~13.~~14.	~~EQUITY IN EARNINGS OF UNCONSOLIDATED REAL ESTATE VENTURES—GAIN ON PURCHASE OF JOINT VENTURE PARTNER'S INTEREST~~REVENUE RECOGNITION

O~~n September 16, 2016,~~Rental revenues are recognized as earned based upon amounts that are currently due from tenants. Leases are generally on month-to-month terms. Prepaid rents are recognized on a straight-line basis over the term of the leases. Promotional discounts are recognized as a reduction to rental income over the promotional period. Late charges, administrative fees, merchandise sales and truck rentals are recognized as income when earned. Tenant reinsurance premiums are recognized as revenue when received.

The Company's management fees are earned subject to the terms of the related management services agreements ("MSAs"). These MSAs provide that the Company ~~acquired 23~~will perform management services, which include leasing and operating the property and providing accounting, marketing, banking and maintenance services. These services are provided in exchange for monthly management fees, which are based on a percentage of revenues collected from stores owned by third parties and unconsolidated joint ventures. MSAs generally have original terms from ~~its ESS PRISA II LLC joint venture ("PRISA II")~~three to five years, after which management services are provided on a month-to-month basis unless terminated. Management fees are due on the last day of each calendar month that management services are provided.

The Company accounts for the management services provided to a customer as a single performance obligation which are rendered over time each month. The total amount of consideration from the contract is variable as it is based on monthly revenues each month. The variable amount of management fees earned is dependent on the revenue and cash collected at the managed stores. Revenue is influenced by multiple factors, including tenant behavior, economic conditions in ~~a step acquisition. These~~the markets in which the stores are located, ~~in Arizona, California, Connecticut, Florida, Indiana, Kentucky, Massachusetts, Maryland, Michigan, New Jersey, New Mexico, Ohio, Tennessee~~the effect of competition, and ~~Virginia. The Company owned 4.42% of PRISA II, with the~~ other 95.58% owned by affiliates of Prudential Global Investment Management ("Prudential"). PRISA II created a new subsidiary, Extra Space Properties 131 LLC ("ESP 131"), and transferred 23 stores into ESP 131. PRISA II then distributed ESP 131 to the Company and Prudential on a pro rata basis. This distribution was accounted for as a spinoff, and was therefore recorded at the net carrying amount of the properties of $4,326. Immediately after the distribution, the Company acquired Prudential's 95.58% interest in ESP 131 for $238,679, resulting in 100% ownership of ESP 131 and the related 23 stores. Based on the purchase price of Prudential's share of ESP 131, the Company determined that the fair value of its investment in ESP 131 immediately prior to the acquisition of Prudential's share was $10,988, and the Company recorded a gain of $6,662 as a result of re-measuring to fair value its existing equity interest in ESP 131. This gain is included in equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partners' interests on the Company's condensed consolidated statements of operations. The Company recorded fixed assets related to this acquisition of $248,530, which includes total cash paid, the investment in ESP 131, and the step acquisition gain, less net assets acquired. Subsequent to these transactions, PRISA II owned 42 stores. The Company sold its 4.42% interest in PRISA II to Prudential immediately following these transactions for $34,758 in cash. The carrying valuefactors outside of the Company's ~~investment prior~~control. Since the management fee is dependent on revenue levels, the MSAs have a large number and broad range of possible consideration amounts that are difficult to estimate.

The total consideration for each contract cannot be estimated as it is dependent on factors outside of the Company's control. The uncertainty about the amount of consideration to be received under each MSA cannot be resolved until the actual revenues and cash collected by the related managed stores is known. The total consideration for each MSA is not known until the end of that MSA's term. One month of uncertainty regarding the consideration amount is resolved as each month passes and the actual revenues for that month can be determined. Therefore, at the end of each month, the Company allocates the actual management fee earned to the ~~acquisition was $3,912,~~distinct services provided during that month and recognizes it as revenue as the uncertainty regarding the amount of revenues for that month has been resolved.

Due to the standardized terms of the MSAs, the Company ~~recorded~~accounts for all MSAs in a ~~gain on the sale of $30,846. This gain~~similar, consistent manner. Therefore, no disaggregated information relating to MSAs is included in equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partners' interests on the Company's condensed consolidated statements of operations.presented.

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated

On February 2, 2016, the Company acquired six stores from its VRS Self Storage LLC joint venture (“VRS”) in a step acquisition. These stores are located in Florida, Maryland, Nevada, New York, and Tennessee. The Company owns 45.0% of VRS, with the other 55.0% owned by affiliates of Prudential. VRS created a new subsidiary, Extra Space Properties 122 LLC (“ESP 122”) and transferred six stores into ESP 122. VRS then distributed ESP 122 to the Company and Prudential on a pro rata basis. This distribution was accounted for as a spinoff, and was therefore recorded at the net carrying amount of the stores of $17,261. Immediately after the distribution, the Company acquired Prudential’s 55.0% interest in ESP 122 for $53,940, resulting in 100% ownership of ESP 122 and the related six stores. Based on the purchase price of Prudential’s share of ESP 122, the Company determined that the fair value of its investment in ESP 122 immediately prior to the acquisition of Prudential’s share was $44,184, and the Company recorded a gain of $26,923 during the nine months ended September 30, 2016 as a result of remeasuring to fair value its existing equity interest in ESP 122. This gain is included in equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partners' interests on the Company’s condensed consolidated statements of operations. The Company recorded fixed assets related to this acquisition of $98,082, which includes total cash paid, the investment in ESP 122, and the step acquisition gain, less net assets acquired.

~~14.~~15. SEGMENT INFORMATION

The ~~Company operates in~~Company’s segment disclosures present the measure used by the chief operating decision makers ("CODMs") for purposes of assessing each segment’s performance. The Company’s CODMs are comprised of several members of its executive management team who use net operating income ("NOI") to assess the performance of the business for the Company’s reportable operating segments. NOI for our self-storage operations represents total property revenue less direct property operating expenses. NOI for our tenant reinsurance segment represents tenant reinsurance revenues less tenant reinsurance expense.

The Company’s segments were historically comprised of three ~~distinct~~reportable segments: (1) rental operations; (2) tenant reinsurance; and (3) property management, acquisition and development. ~~Management~~Based on how the CODMs review performance and make decisions, the Company realigned its segments as of December 31, 2017 into two reportable segments: (1) self-storage operations and (2) tenant reinsurance. The self-storage operations activities include rental operations of wholly-owned stores. The Company's consolidated revenues equal total segment revenues plus property management fees ~~collected for consolidated joint venture~~and other income. Tenant reinsurance activities include the reinsurance of risks relating to the loss of goods stored by tenants in the stores operated by the Company. Excluded from segment revenues and net operating income is property management fees and other income.

For all periods presented, substantially all of the Company's real estate assets, intangible assets, other assets, and accrued and other liabilities are ~~eliminated in consolidation.~~associated with the self-storage operations segment. The prior periods have been restated to conform to the current presentation. Financial information for the Company’s business segments is ~~presented~~set forth below:

September 30, 2017 December 31, 2016
Balance Sheet
Investment in unconsolidated real estate ventures
Rental operations $ 78,512
$ 79,570
Total assets
Rental operations $ 6,728,499
$ 6,731,292
Tenant reinsurance 42,786
44,524
Property management, acquisition and development 315,670
315,630
$ 7,086,955
$ 7,091,446

For the Three Months Ended September 30, For the Nine Months Ended September 30,
2017 2016 2017 2016
Statement of Operations
Total revenues
Rental operations $ 248,589
$ 224,451
$ 720,878
$ 635,730
Tenant reinsurance 25,882
22,727
73,050
64,936
Property management, acquisition and development 9,685
10,005
29,239
30,193
284,156
257,183
823,167
730,859
Operating expenses, including depreciation and amortization
Rental operations 115,162
106,530
341,191
312,389
Tenant reinsurance 6,272
4,093
13,996
12,345
Property management, acquisition and development 22,841
23,836
67,489
79,471
144,275
134,459
422,676
404,205
Income (loss) from operations
Rental operations 133,427
117,921
379,687
323,341
Tenant reinsurance 19,610
18,634
59,054
52,591
Property management, acquisition and development (13,156 ) (13,831 ) (38,250 ) (49,278 )
139,881
122,724
400,491
326,654
Gain (loss) on real estate transactions, earnout from prior acquisition and impairment of real estate
Property management, acquisition and development —
—
(6,019 ) 9,814
Interest expense
Rental operations (38,379 ) (32,619 ) (109,414 ) (95,125 )
Property management, acquisition and development (1,387 ) (875 ) (3,778 ) (2,530 )
(39,766 ) (33,494 ) (113,192 ) (97,655 )

Non-cash interest expense related to the amortization of discount on equity component of exchangeable senior notes
Property management, acquisition and development (1,268 ) (1,243 ) (3,827 ) (3,716 )
Interest income
Property management, acquisition and development 869
1,358
2,797
4,697

Interest income on note receivable from Preferred Operating Partnership unit holder
Property management, acquisition and development 532
1,213
2,404
3,638
Equity in earnings of unconsolidated real estate ventures
Rental operations 3,990
3,625
11,407
9,813
Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partners' interests
Property management, acquisition and development —
37,509
—
64,432
Income tax (expense) benefit
Rental operations (834 ) (550 ) (1,759 ) (1,840 )
Tenant reinsurance (3,572 ) (3,504 ) (10,701 ) (9,352 )
Property management, acquisition and development 1,243
(412 ) 3,306
188
(3,163 ) (4,466 ) (9,154 ) (11,004 )
Net income (loss)
Rental operations 98,204
88,377
279,921
236,189
Tenant reinsurance 16,038
15,130
48,353
43,239
Property management, acquisition and development (13,167 ) 23,719
(43,367 ) 27,245
$ 101,075
$ 127,226
$ 284,907
$ 306,673



	For the Three Months Ended June 30,						For the Six Months Ended June 30,
	2018			2017			2018			2017
Revenues:
Self-Storage Operations	$	258,128		$	240,796		$	506,014		$	472,289
Tenant Reinsurance	28,521			24,313			55,555			47,168
Total segment revenues	286,649			265,109			561,569			519,457

Operating expenses:
Self-Storage Operations	$	73,083		$	67,295		$	145,836		$	133,940
Tenant Reinsurance	5,471			3,804			11,078			7,724
Total segment operating expenses	$	78,554		$	71,099		$	156,914		$	141,664

Net operating income:
Self-Storage Operations	185,045			173,501			360,178			338,349
Tenant Reinsurance	23,050			20,509			44,477			39,444
Total segment net operating income:	$	208,095		$	194,010		$	404,655		$	377,793

Other components of net income (loss):
Property management fees and other income	10,164			10,894			20,729			19,554
General and administrative expense	(21,651		)	(21,865		)	(43,115		)	(40,673		)
Depreciation and amortization expense	(51,892		)	(46,632		)	(103,641		)	(96,064		)
Loss on real estate transactions and impairment of real estate	—			(6,019		)	—			(6,019		)
Interest expense	(43,347		)	(37,456		)	(84,313		)	(73,426		)
Non-cash interest expense related to the amortization of discount on equity component of exchangeable senior notes	(1,176		)	(1,290		)	(2,385		)	(2,559		)
Interest income	1,188			1,485			2,626			3,800
Equity in earnings of unconsolidated real estate ventures	3,429			3,838			7,026			7,417
Income tax expense	(2,097		)	(2,867		)	(3,439		)	(5,991		)
Net income	$	102,713		$	94,098		$	198,143		$	183,832

For the Three Months Ended September 30, For the Nine Months Ended September 30,
2017 2016 2017 2016
Depreciation and amortization expense
Rental operations $ 44,732
$ 44,189
$ 136,821
$ 126,506
Property management, acquisition and development 3,343
2,366
7,318
6,896
$ 48,075
$ 46,555
$ 144,139
$ 133,402
Statement of Cash Flows
Acquisition of real estate assets
Property management, acquisition and development

$ (119,040 ) $ (763,246 )
Development and redevelopment of real estate assets
Property management, acquisition and development

$ (20,670 ) $ (18,492 )

EXTRA SPACE STORAGE INC.

NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited) (continued)

Amounts in thousands, except store and share data, unless otherwise stated


~~15.~~16.	COMMITMENTS AND CONTINGENCIES

As of ~~September~~June 30, ~~2017,~~2018, the Company iswas involved in various legal proceedings and iswas subject to various claims and complaints arising in the ordinary course of business. Because litigation is inherently unpredictable, the outcome of these matters cannot presently be determined with any degree of certainty. In accordance with applicable accounting guidance, management establishes an accrued liability for litigation when those matters present loss contingencies that are both probable and reasonably estimable. In such cases, there may be an exposure to loss in excess of any amounts accrued. The estimated loss, if any, is based upon currently available information and is subject to significant judgment, a variety of assumptions, and known and unknown uncertainties. The Company could in the future incur judgments or enter into settlements of claims that could have a material adverse effect on its results of operations in any particular period, notwithstanding the fact that the Company is currently vigorously defending any legal proceedings against it.

As of ~~September~~June 30, ~~2017,~~2018, the Company was under agreement to acquire 3515 stores at a total purchase price of ~~$462,116.~~$194,486. Of these stores, ~~23 are scheduled to close in 2017 at a purchase price of $308,225, nine~~11 are scheduled to close in 2018 at a purchase price of ~~$118,463,~~$145,258, three are scheduled to close in 2019 at a purchase price of $38,700, and ~~three are~~one is scheduled to close thereafter at a purchase price of ~~$35,428.~~$10,528. Additionally, the Company is under agreement to acquire 1923 stores with joint venture partners, for a total investment of ~~$96,750. Six~~$77,610. Twenty of these stores are scheduled to close in ~~2017, while~~2018 and the remaining 13three stores are expected to close in ~~2018.~~

The Company owns and/or operates stores located in Texas, Florida, and Puerto Rico that were impacted by Hurricanes Harvey, Irma, and Maria during the three months ended September 30, 2017. Losses incurred to date by these hurricanes include property damage, net of insurance recoveries, of $2,110, and tenant reinsurance claims of $2,250, which are included in property operations and tenant reinsurance on the Company's condensed consolidated statements of operations.2019.

Although there can be no assurance, the Company is not aware of any material environmental liability, for which it believes it will be ultimately responsible, that could have a material adverse effect on its financial condition or results of operations. However, changes in applicable environmental laws and regulations, the uses and conditions of properties in the vicinity of the Company’s stores, the activities of its tenants and other environmental conditions of which the Company is unaware with respect to its stores could result in future material environmental liabilities.

~~16.~~17. SUBSEQUENT EVENTS

Subsequent to ~~September~~June 30, ~~2017,~~2018, the Company purchased ~~seven~~three stores located in ~~Georgia, Maryland, Oregon, Virginia~~Florida, Minnesota and ~~Washington~~North Carolina for a total purchase price of ~~$83,125.~~$47,125. These acquisitions are included in the amounts shown in the commitments and contingencies footnote.

On July 5, 2018, the remaining principal amount of 2013 Notes were redeemed for $21,801 in cash.

Subsequent to quarter end, the Company sold 343,251 shares of stock under its "at the market" equity program. The average price was $99.75 per share, resulting in net proceeds of $33,897.


ITEM 2.	MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS

Amounts in thousands, except store and share data

CAUTIONARY LANGUAGE

The following discussion and analysis should be read in conjunction with our unaudited “Condensed Consolidated Financial Statements” and the “Notes to Condensed Consolidated Financial Statements (unaudited)” appearing elsewhere in this report and the “Consolidated Financial Statements,” “Notes to Consolidated Financial Statements” and “Management’s Discussion and Analysis of Financial Condition and Results of Operations” contained in our Form 10-K for the year ended December 31, ~~2016.~~2017. We make statements in this section that are forward-looking statements within the meaning of the federal securities laws. For a complete discussion of forward-looking statements, see the section in this Form 10-Q entitled “Statement on Forward-Looking Information.”

CRITICAL ACCOUNTING POLICIES

Our discussion and analysis of our financial condition and results of operations are based on our unaudited condensed consolidated financial statements contained elsewhere in this report, which have been prepared in accordance with GAAP. Our notes to the unaudited condensed consolidated financial statements contained elsewhere in this report and the audited financial statements contained in our Form 10-K for the year ended December 31, ~~2016~~2017 describe the significant accounting policies essential to our unaudited condensed consolidated financial statements. Preparation of our financial statements requires estimates, judgments and assumptions. We believe that the estimates, judgments and assumptions that we have used are appropriate and correct based on information available at the time they were made. These estimates, judgments and assumptions can affect our reported assets and liabilities as of the date of the financial statements, as well as the reported revenues and expenses during the period presented. If there are material differences between these estimates, judgments and assumptions and actual facts, our financial statements may be affected.

In many cases, the accounting treatment of a particular transaction is specifically dictated by GAAP and does not require our judgment in its application. There are areas in which our judgment in selecting among available alternatives would not produce a materially different result, but there are some areas in which our judgment in selecting among available alternatives would produce a materially different result. See the notes to the unaudited condensed consolidated financial statements that contain additional information regarding our accounting policies and other disclosures.

OVERVIEW

We are a fully integrated, self-administered and self-managed ~~REIT,~~real estate investment trust (“REIT”), formed ~~to continue the business commenced in 1977 by Extra Space Storage LLC and its subsidiaries~~ to own, operate, manage, acquire, develop and redevelop ~~professionally managed~~ self-storage ~~stores.~~

properties (“stores”). We derive substantially all of our revenues from our two segments: storage operations and tenant reinsurance. Primary sources of revenue for our storage operations segment include rents received from tenants under leases at each of our wholly-owned ~~stores;~~stores. Our operating results depend materially on our ability to lease available self-storage units, to actively manage unit rental rates, and on the ability of our tenants to make required rental payments. Consequently, management spends a significant portion of their time maximizing cash flows from our diverse portfolio of stores. Revenue from our tenant reinsurance ~~program;~~segment consists of insurance revenues from the reinsurance of risks relating to the loss of goods stored by tenants in the Company's stores. Our segment presentation has changed from the prior year, and ~~from management fees on~~all applicable information has been reclassified to conform to the current year's segment presentation.

Our stores are generally situated in locations clustered around large population centers. These areas enjoy above average population growth and income levels. The clustering of our assets around these population centers enables us to reduce our operating costs through economies of scale. To maximize the performance of our stores, we use an internally developed revenue management system that enables us to analyze, set and adjust rental rates in real time across our portfolio in order to respond to changing market conditions. We believe our systems and processes allow us to more pro-actively manage ~~for joint venture partners and unaffiliated third parties. Our management fee is equal to approximately 6.0% of cash collected from the managed stores.~~

revenues.

We operate in competitive markets, often where consumers have multiple stores from which to choose. Competition has impacted, and will continue to impact, our store results. We experience seasonal fluctuations in occupancy levels, with occupancy levels generally higher in the summer months due to increased moving activity. ~~Our operating results depend materially on our ability to lease available self-storage units and actively manage rental rates, and on the ability of our tenants to make required rental payments.~~ We believe that we are able to respond quickly and effectively to changes in local, regional and national economic conditions by ~~centrally~~ adjusting rental rates through

the combination of our revenue management team and our ~~industry-leading technology~~proprietary pricing systems.

~~We continue to evaluate a range of new initiatives and opportunities in order to enable us to maximize stockholder value. Our strategies to maximize stockholder value include the following:~~

~~Maximize the performance of our stores through strategic, efficient and proactive management.~~ We pursue revenue-generating and expense-minimizing opportunities in our operations. Our revenue management team seeks to maximize revenue by responding to changing market conditions through our advanced technology system’s ability to provide real-time, interactive rental rate and discount management. Our size allows us greater ability than the majority of our competitors to implement more effective online marketing programs, which we believe will attract more customers to our stores at a lower net cost.

~~Acquire self-storage stores.~~ Our acquisitions team continues to pursue the acquisition of multi-store portfolios and single stores that we believe can provide stockholder value. We have established a reputation as a reliable, ethical buyer, which we believe enhances our ability to negotiate and close acquisitions. In addition, we believe our status as an UPREIT enables flexibility when structuring deals. We continue to review available acquisitions. We remain a disciplined buyer and only execute acquisitions that we believe will strengthen our portfolio and increase stockholder value.

~~Expand our management business~~. Our management business enables us to generate increased revenues through management fees and to expand our geographic footprint. We believe this expanded footprint enables us to reduce our operating costs through economies of scale. In addition, we see our management business as a future acquisition pipeline. We pursue strategic relationships with owners whose stores would enhance our portfolio in the event an opportunity arises to acquire such stores.

~~PROPERTIES~~

As of September 30, 2017, we owned, had ownership interests in, or managed 1,513 stores in 38 states, Washington, D.C. and Puerto Rico. Of these 1,513 stores, we owned 844 stores, we held joint venture interests in 184 stores, and our taxable REIT subsidiary, Extra Space Management, Inc., operated an additional 485 stores that are owned by third parties. These operating stores contain approximately 114.0 million square feet of rentable space in approximately 1.0 million units.

Our stores are generally situated in convenient, highly visible locations clustered around large population centers such as Atlanta, Baltimore/Washington, D.C., Boston, Chicago, Dallas, Houston, Las Vegas, Los Angeles, Miami, New York City, Orlando, Philadelphia, Phoenix, St. Petersburg/Tampa and San Francisco/Oakland. These markets contain above-average population growth and income demographics. The clustering of assets around these population centers enables us to reduce our operating costs through economies of scale. Our acquisitions and management business have given us an increased scale in many core markets as well as a foothold in many markets where we had no previous presence.

We consider a store to be in the lease-up stage after it has been issued a certificate of occupancy, but before it has achieved stabilization. We consider a store to be stabilized once it has achieved either an 80% ~~average~~ occupancy rate for a full year measured as of January 1 of the current year, or has been open for three years prior to January 1 of the current year.

PROPERTIES

As of ~~September~~June 30, ~~2017,~~2018, we owned or had ownership interests in 1,082 operating stores. Of these stores, 868 are wholly-owned, three are in consolidated joint ventures, and 211 are in unconsolidated joint ventures. In addition, we managed an additional 486 stores for third parties bringing the total number of stores which we own and/or manage to 1,568. These stores are located in 39 states, Washington, D.C. and Puerto Rico. The majority of our stores are clustered around large population centers. Our acquisitions have given us an increased scale in many core markets as well as a foothold in many markets where we had no previous presence.

As of June 30, 2018, approximately ~~920,000~~905,000 tenants were leasing storage units at the ~~1,513~~ operating stores that we own and/or manage, primarily on a month-to-month basis, providing the flexibility to increase rental rates over time as market conditions permit. Existing tenants generally receive rate increases at least annually, for which no direct correlation has been drawn to our vacancy trends. Although leases are short-term in duration, the typical tenant tends to remain at our stores for an extended period of time. For stores that were stabilized as of ~~September~~June 30, ~~2017,~~2018, the average length of stay was approximately ~~14.5 months for tenants who have vacated in the last 12~~15.1 months.

The average annual rent per square foot for our existing customers at stabilized stores, net of discounts and bad debt, was ~~$15.77~~$16.02 for the three months ended ~~September~~June 30, ~~2017,~~2018, compared to ~~$15.24~~$15.41 for the three months ended ~~September~~June 30, ~~2016.~~2017. Average annual rent per square foot for new leases was ~~$16.90~~$18.31 for the three months ended ~~September~~June 30, ~~2017,~~2018, compared to ~~$16.06~~$16.87 for the three months ended ~~September~~June 30, ~~2016.~~2017. The average discount, as a percentage of rental revenues, at all stabilized properties during these periods was ~~3.7%~~4.4% and ~~2.9%~~3.9%, respectively.

Our store portfolio is made up of different types of construction and building configurations depending on the site and the municipality where it is located. Most often sites are what we consider “hybrid” stores, a mix of drive-up and multi-floor buildings. We have a number of multi-floor buildings with elevator access only, and a number of stores featuring ground-floor access only.

~~Stabilized Store Data Based on Location~~

The following table presents additional information regarding net rentable square feet and the ~~occupancy~~number of ~~our stabilized~~ stores by state as of September 30, 2017 and 2016. The information as of September 30, 2016 is on a pro forma basis as though all the stores owned and/or managed at September 30, 2017 were under our control as of September 30, 2016.state.

Company Pro forma Company Pro forma Company Pro forma
Location Number of Stores
Number of Units as of
September 30, 2017 ⁽¹⁾
Number of Units as of
September 30, 2016
Net Rentable
Square Feet as of
September 30, 2017 ⁽²⁾
Net Rentable
Square Feet as of
September 30, 2016 Square Foot Occupancy % September 30, 2017 Square Foot Occupancy % September 30, 2016
Wholly-Owned Stores
Alabama 8
4,691
4,650
556,216
556,971
91.2 % 90.1 %
Arizona 22
13,773
13,640
1,530,770
1,531,922
93.6 % 91.3 %
California 143
110,726
108,965
11,395,369
11,369,700
95.3 % 94.4 %
Colorado 13
7,080
6,656
852,884
822,689
91.6 % 91.6 %
Connecticut 7
5,101
4,966
496,026
485,247
94.0 % 92.9 %
Florida 78
56,628
55,796
5,965,751
5,942,885
94.4 % 93.1 %
Georgia 49
30,130
29,401
3,811,743
3,765,111
94.1 % 91.7 %
Hawaii 9
8,550
8,523
603,411
603,349
93.8 % 93.2 %
Illinois 27
19,152
18,703
2,057,271
2,016,245
92.6 % 92.0 %
Indiana 15
7,924
7,802
943,029
940,348
93.3 % 93.2 %
Kansas 1
532
529
49,989
49,999
96.3 % 96.2 %
Kentucky 10
5,901
5,876
767,669
757,090
91.9 % 91.8 %
Louisiana 2
1,407
1,405
149,930
149,880
95.2 % 93.3 %
Maryland 29
22,487
22,337
2,294,086
2,291,567
92.6 % 92.5 %
Massachusetts 38
23,924
23,815
2,363,571
2,363,819
94.1 % 91.6 %
Michigan 4
2,401
2,388
324,276
323,976
94.8 % 94.4 %
Minnesota 1
740
740
74,550
74,550
94.0 % 76.7 %
Mississippi 3
1,510
1,511
217,442
218,282
92.5 % 89.7 %
Missouri 6
3,332
3,290
389,411
385,951
94.2 % 92.4 %
Nevada 15
9,191
9,111
1,313,933
1,313,545
95.3 % 92.6 %
New Hampshire 2
1,046
1,043
125,987
126,053
89.8 % 94.5 %
New Jersey 58
45,967
45,458
4,507,390
4,498,001
95.3 % 93.1 %
New Mexico 12
6,656
6,579
751,518
749,053
94.7 % 93.4 %
New York 21
19,310
19,241
1,553,309
1,549,618
93.5 % 92.9 %
North Carolina 12
7,937
7,845
848,649
847,269
92.5 % 90.8 %
Ohio 17
9,545
9,536
1,250,475
1,248,121
92.8 % 92.5 %
Oregon 4
2,792
2,738
327,487
326,977
93.7 % 91.6 %
Pennsylvania 14
9,832
9,625
1,053,644
1,046,635
91.8 % 91.2 %
Rhode Island 2
1,301
1,274
131,021
131,521
95.7 % 95.0 %
South Carolina 21
12,082
11,898
1,572,859
1,569,374
92.6 % 89.5 %
Tennessee 23
13,041
12,864
1,755,104
1,767,356
92.9 % 92.3 %
Texas 90
59,106
58,661
7,582,540
7,526,015
92.6 % 90.0 %
Utah 7
3,861
3,870
476,999
477,034
93.7 % 94.2 %

Company Pro forma Company Pro forma Company Pro forma
Location Number of Stores
Number of Units as of
September 30, 2017 ⁽¹⁾
Number of Units as of
September 30, 2016
Net Rentable
Square Feet as of
September 30, 2017 ⁽²⁾
Net Rentable
Square Feet as of
September 30, 2016 Square Foot Occupancy % September 30, 2017 Square Foot Occupancy % September 30, 2016
Virginia 41
31,025
30,804
3,288,449
3,283,976
93.0 % 91.2 %
Washington 7
4,330
4,301
509,638
509,358
96.5 % 94.8 %
Washington, DC 1
1,219
1,220
99,689
99,739
92.4 % 92.3 %
Total Wholly-Owned Stabilized 812
564,230
557,061
61,992,085
61,719,226
93.8 % 92.3 %

Joint-Venture Stores
Alabama 1
619
602
75,296
74,856
96.1 % 93.5 %
Arizona 6
3,747
3,725
429,273
428,883
93.6 % 92.2 %
California 47
34,171
33,887
3,279,318
3,283,061
94.5 % 94.5 %
Colorado 2
1,333
1,315
160,654
157,986
91.6 % 93.0 %
Connecticut 5
3,770
3,759
405,190
403,910
91.6 % 92.1 %
Delaware 1
561
603
76,765
71,910
88.5 % 82.7 %
Florida 12
10,047
9,988
1,006,891
1,002,212
96.0 % 93.2 %
Georgia 1
614
608
81,770
81,820
92.5 % 88.9 %
Illinois 4
2,685
2,692
288,399
288,115
90.7 % 92.0 %
Indiana 1
454
445
57,010
56,954
92.8 % 97.1 %
Kansas 2
848
845
109,170
109,375
96.7 % 92.2 %
Kentucky 3
1,399
1,374
158,980
153,825
90.5 % 94.9 %
Maryland 7
5,901
5,881
531,126
529,070
92.6 % 92.2 %
Massachusetts 9
5,132
5,114
534,378
534,877
91.6 % 92.5 %
Michigan 5
3,228
3,207
396,749
397,059
94.6 % 92.9 %
Missouri 1
544
542
61,375
61,075
93.0 % 92.1 %
Nevada 2
1,212
1,205
123,610
123,565
98.3 % 93.9 %
New Hampshire 2
805
794
85,061
83,845
91.4 % 91.9 %
New Jersey 13
10,403
10,328
1,029,694
1,029,588
94.3 % 92.4 %
New Mexico 2
1,051
1,047
134,403
134,371
93.3 % 91.5 %
New York 8
7,750
7,677
653,499
649,362
94.0 % 93.3 %
Ohio 5
2,896
2,877
382,178
381,432
93.6 % 92.7 %
Oregon 1
654
652
64,970
64,970
94.6 % 95.5 %
Pennsylvania 4
2,728
2,699
314,845
312,995
93.5 % 90.9 %
Tennessee 6
3,864
3,799
475,155
474,990
93.2 % 93.4 %
Texas 10
5,784
5,789
672,110
672,696
92.2 % 92.0 %
Virginia 7
5,093
5,090
514,117
514,172
80.2 % 90.9 %
Washington, DC 1
1,691
1,694
104,382
104,454
87.9 % 91.5 %
Total Joint-Venture Stabilized 168
118,984
118,238
12,206,368
12,181,428
93.1 % 93.0 %

Managed Stores
Alabama 9
4,202
4,232
595,551
602,341
92.0 % 90.7 %
Arizona 5
2,619
2,633
312,159
312,407
90.8 % 84.8 %
California 75
52,308
50,511
6,229,279
6,054,110
94.2 % 93.5 %
Colorado 16
8,853
8,596
1,039,790
1,044,988
89.7 % 88.3 %
Connecticut 2
1,423
1,414
182,380
182,149
94.8 % 90.9 %

Company Pro forma Company Pro forma Company Pro forma
Location Number of Stores
Number of Units as of
September 30, 2017 ⁽¹⁾
Number of Units as of
September 30, 2016
Net Rentable
Square Feet as of
September 30, 2017 ⁽²⁾
Net Rentable
Square Feet as of
September 30, 2016 Square Foot Occupancy % September 30, 2017 Square Foot Occupancy % September 30, 2016
Florida 49
33,975
33,489
4,026,357
4,015,636
94.6 % 92.8 %
Georgia 8
4,098
3,962
578,397
573,080
94.4 % 93.7 %
Hawaii 6
4,801
4,685
353,629
352,278
93.7 % 91.3 %
Illinois 12
7,144
7,159
743,634
744,437
91.0 % 90.7 %
Indiana 4
2,034
2,020
238,358
238,028
90.1 % 91.8 %
Kansas 1
570
572
70,480
70,480
97.2 % 94.4 %
Kentucky 2
1,328
1,332
218,334
218,887
93.9 % 92.2 %
Louisiana 1
987
987
133,360
133,325
97.6 % 92.2 %
Maryland 21
15,214
15,214
1,477,429
1,475,581
93.5 % 91.2 %
Massachusetts 3
1,543
1,540
182,945
182,945
90.2 % 92.1 %
Michigan 6
3,364
3,352
417,754
416,650
96.2 % 92.7 %
Mississippi 1
371
371
50,325
50,325
89.9 % 66.3 %
Missouri 3
1,663
1,582
186,319
182,910
93.2 % 92.8 %
Nevada 11
9,451
9,398
1,142,141
1,142,571
96.1 % 90.6 %
New Jersey 6
4,528
4,514
388,799
391,541
93.8 % 87.9 %
New Mexico 2
1,267
1,261
164,525
163,245
89.9 % 84.0 %
New York 13
11,028
11,012
676,752
676,510
89.4 % 80.6 %
North Carolina 20
8,599
8,440
1,176,243
1,181,578
91.5 % 85.4 %
Ohio 5
2,291
2,249
274,670
274,870
91.4 % 94.3 %
Oklahoma 11
5,864
5,823
970,694
953,385
88.8 % 80.6 %
Oregon 1
445
447
39,300
39,430
92.4 % 93.7 %
Pennsylvania 18
10,859
10,715
1,253,565
1,244,635
91.8 % 92.4 %
South Carolina 5
3,629
3,624
448,567
450,659
94.2 % 92.2 %
Tennessee 4
2,282
2,151
287,694
282,263
92.4 % 94.1 %
Texas 26
15,576
15,592
2,224,973
2,217,402
89.6 % 90.6 %
Utah 5
2,767
2,781
400,207
408,122
93.1 % 90.4 %
Virginia 7
4,209
4,209
425,899
426,299
90.6 % 90.7 %
Washington 3
1,557
1,564
194,327
181,897
93.2 % 94.3 %
Wisconsin 1
680
680
90,926
90,926
90.1 % 74.3 %
Puerto Rico 4
2,728
2,725
288,258
289,620
91.1 % 86.6 %
Total Managed Stabilized 366
234,257
230,836
27,484,020
27,265,510
92.8 % 90.8 %

Total Stabilized Stores 1,346
917,471
906,135
101,682,473
101,166,164
93.5 % 92.0 %


~~(1)~~	~~Represents unit count as of September 30, 2017, which may differ from unit count as of September 30, 2016 due to unit conversions or expansions.~~


~~(2)~~	~~Represents net rentable square feet as of September 30, 2017, which may differ from rentable square feet as of September 30, 2016 due to unit conversions or expansions.~~



	June 30, 2018
	REIT Owned		Joint Venture Owned		Managed		Total
Location	Property Count	Net Rentable Square Feet	Property Count	Net Rentable Square Feet	Property Count	Net Rentable Square Feet	Property Count	Net Rentable Square Feet
Alabama	8	557,008	1	75,286	10	581,626	19	1,213,920
Arizona	23	1,623,514	7	467,446	8	582,879	38	2,673,839
California	145	11,407,198	53	3,752,847	59	5,598,792	257	20,758,837
Colorado	15	1,003,470	2	186,253	23	1,599,416	40	2,789,139
Connecticut	7	526,098	7	596,341	2	110,679	16	1,233,118
Delaware	—	—	1	76,765	1	69,244	2	146,009
Florida	85	6,548,948	17	1,305,040	60	4,381,517	162	12,235,505
Georgia	56	4,318,347	3	274,775	15	1,091,254	74	5,684,376
Hawaii	9	603,305	—	—	7	403,433	16	1,006,738
Illinois	31	2,394,696	5	372,261	23	1,574,507	59	4,341,464
Indiana	15	947,083	1	56,926	10	648,594	26	1,652,603
Kansas	1	49,999	2	108,770	1	70,420	4	229,189
Kentucky	11	831,498	1	51,088	4	312,456	16	1,195,042
Louisiana	2	150,555	—	—	1	133,810	3	284,365
Maryland	32	2,560,542	7	530,453	22	1,543,185	61	4,634,180
Massachusetts	43	2,661,786	9	559,238	5	304,971	57	3,525,995
Michigan	7	562,399	4	313,149	—	—	11	875,548
Minnesota	2	137,621	—	—	5	279,349	7	416,970
Mississippi	3	216,362	—	—	4	255,280	7	471,642
Missouri	5	332,036	2	119,575	7	450,469	14	902,080
Nebraska	—	—	—	—	2	127,903	2	127,903
Nevada	14	1,042,051	4	472,731	6	773,337	24	2,288,119
New Hampshire	2	135,810	2	84,005	4	193,745	8	413,560
New Jersey	59	4,724,665	17	1,244,815	7	547,479	83	6,516,959
New Mexico	11	721,685	3	163,410	4	337,224	18	1,222,319
New York	23	1,733,168	11	857,293	14	735,533	48	3,325,994
North Carolina	17	1,228,676	1	68,265	17	1,323,602	35	2,620,543
Ohio	17	1,306,170	5	325,441	3	181,929	25	1,813,540
Oklahoma	—	—	—	—	18	1,494,672	18	1,494,672
Oregon	6	399,452	3	216,866	5	302,280	14	918,598
Pennsylvania	16	1,202,039	7	506,986	18	1,251,682	41	2,960,707
Rhode Island	2	130,846	—	—	1	84,665	3	215,511
South Carolina	23	1,751,485	1	81,926	13	981,616	37	2,815,027
Tennessee	17	1,416,761	12	801,950	10	771,801	39	2,990,512
Texas	99	8,540,647	10	705,326	60	4,798,267	169	14,044,240
Utah	10	707,456	—	—	9	670,200	19	1,377,656
Virginia	46	3,668,032	6	445,214	13	981,371	65	5,094,617
Washington	8	591,309	1	56,230	3	222,852	12	870,391
Washington, DC	1	99,614	1	104,382	1	73,237	3	277,233
Wisconsin	—	—	5	499,381	3	203,035	8	702,416
Puerto Rico	—	—	—	—	8	914,248	8	914,248
Totals	871	66,832,331	211	15,480,434	486	36,962,559	1,568	119,275,324

~~Lease-up Store Data Based on Location~~

The following table presents additional information regarding the occupancy of our lease-up stores by state as of September 30, 2017 and 2016. The information as of September 30, 2016 is on a pro forma basis as though all the stores owned and/or managed at September 30, 2017 were under our control as of September 30, 2016.

Company Pro forma Company Pro forma Company Pro forma
Location Number of Stores
Number of Units as of
September 30, 2017 ⁽¹⁾
Number of Units as of
September 30, 2016
Net Rentable
Square Feet as of
September 30, 2017 ⁽²⁾
Net Rentable
Square Feet as of
September 30, 2016 Square Foot Occupancy % September 30, 2017 Square Foot Occupancy % September 30, 2016
Wholly-Owned Stores
Arizona 1 606
609
63,395
63,395
98.5 % 88.1 %
California 4 2,662
2,606
258,633
253,638
87.9 % 60.0 %
Florida 4 2,889
1,056
287,310
113,163
62.2 % 92.3 %
Georgia 6 3,695
3,667
442,453
442,273
84.9 % 53.6 %
Illinois 3 2,724
2,659
252,854
238,754
69.9 % 19.4 %
Massachusetts 2 2,013
1,971
139,918
138,931
80.9 % 54.6 %
New York 1 822
820
100,470
100,480
58.3 % 58.3 %
North Carolina 3 2,277
1,797
204,254
163,919
79.3 % 73.0 %
South Carolina 1 695
695
78,680
78,680
86.2 % 77.9 %
Texas 5 2,989
2,981
411,226
411,396
90.0 % 81.8 %
Utah 2 1,211
998
143,244
110,875
84.7 % 39.1 %
Total Wholly-Owned in Lease-up 32 22,583
19,859
2,382,437
2,115,504
80.3 % 61.0 %

Joint-Venture Stores
Arizona 1 606
602
62,200
62,200
94.5 % 87.4 %
Colorado 1 816
815
84,855
84,640
82.2 % 32.5 %
Florida 3 1,951
—
202,718
—
55.4 % — %
Massachusetts 1 487
—
50,330
—
37.8 % — %
New Jersey 1 868
872
74,131
74,152
95.0 % 90.9 %
New York 3 3,856
3,855
209,157
209,387
75.0 % 40.6 %
Pennsylvania 1 780
—
76,666
—
32.4 % — %
Oregon 2 792
796
71,465
71,670
78.3 % 31.5 %
Texas 1 527
533
55,325
55,275
88.7 % 43.1 %
South Carolina 1 686
669
83,826
78,085
91.5 % 68.1 %
Washington 1 623
637
82,301
82,345
86.0 % 46.5 %
Total Joint-Venture in Lease-up 16 11,992
8,779
1,052,974
717,754
72.6 % 51.9 %

Managed Stores
Arizona 2 1,848
1,842
211,839
212,789
67.1 % 47.8 %
California 4 3,692
2,887
460,356
350,486
71.8 % 44.1 %
Colorado 5 3,375
1,232
418,254
147,604
45.6 % 81.1 %
Connecticut 2 861
—
112,282
—
35.0 % — %
Florida 13 8,667
595
842,555
70,870
36.3 % 85.1 %
Georgia 4 2,893
639
301,880
78,305
41.8 % — %
Hawaii 1 641
—
51,552
—
3.8 % — %


~~(1)~~	~~Represents unit count as of September 30, 2017, which may differ from unit count as of September 30, 2016 due to unit conversions or expansions.~~


~~(2)~~	~~Represents net rentable square feet as of September 30, 2017, which may differ from rentable square feet as of September 30, 2016 due to unit conversions or expansions.~~

RESULTS OF OPERATIONS

Comparison of the three and ~~nine~~six months ended ~~September~~June 30, ~~2017~~2018 and ~~2016~~2017

Overview

Results for the three and ~~nine~~six months ended ~~September~~June 30, ~~2017~~2018 included the operations of ~~1,028~~1,082 stores ~~(844~~(868 wholly-owned, ~~two~~three in consolidated joint ventures, and ~~182~~211 in joint ventures accounted for using the equity method) compared to the results for the three and ~~nine~~six months ended ~~September~~June 30, ~~2016,~~2017, which included the operations of ~~999~~1,023 stores ~~(810~~(840 wholly-owned, ~~one~~two in a consolidated joint venture, and ~~188~~181 in joint ventures accounted for using the equity method).

Revenues

The following table presents information on revenues earned for the periods indicated:


	For the Three Months Ended September 30,									For the Nine Months Ended September 30,									For the Three Months Ended June 30,									For the Six Months Ended June 30,
	2017		2016		$ Change			% Change		2017		2016		$ Change			% Change		2018		2017		$ Change			% Change		2018		2017		$ Change		% Change
Revenues:
Property rental	$	248,589	$	224,451	$	24,138		10.8	%	$	720,878	$	635,730	$	85,148		13.4	%	$	258,128	$	240,796	$	17,332		7.2	%	$	506,014	$	472,289	$	33,725	7.1	%
Tenant reinsurance	25,882		22,727		3,155			13.9	%	73,050		64,936		8,114			12.5	%	28,521		24,313		4,208			17.3	%	55,555		47,168		8,387		17.8	%
Management fees and other income	9,685		10,005		(320		)	(3.2	)%	29,239		30,193		(954		)	(3.2	)%	10,164		10,894		(730		)	(6.7	)%	20,729		19,554		1,175		6.0	%
Total revenues	$	284,156	$	257,183	$	26,973		10.5	%	$	823,167	$	730,859	$	92,308		12.6	%	$	296,813	$	276,003	$	20,810		7.5	%	$	582,298	$	539,011	$	43,287	8.0	%

Property Rental—The increase in property rental revenues for the three and ~~nine~~six months ended ~~September~~June 30, ~~2017~~2018 was primarily the result of ~~an increase~~increases in rental rates at our stabilized stores and revenues from newly-acquired stores. Increases of ~~$14,506~~$14,496 and ~~$52,487,~~$25,061, respectively, ~~associated with~~were attributable to store acquisitions completed in ~~2017~~2018 and ~~2016.~~2017. We acquired ~~nine~~22 stores during the ~~nine~~six months ended ~~September~~June 30, ~~2017~~2018 and 9946 stores during the year ended December 31, ~~2016. Property~~2017. Increases of $9,181 and $20,378 respectively, were due to rental ~~revenue also increased by $9,990 and $31,727, respectively, during the three and nine months ended September 30, 2017, as a result of~~rate increases ~~in occupancy and rental rates to~~for new and existing customers at our stabilized ~~stores. Occupancy at our wholly-owned stabilized~~ stores ~~increased to 93.8% at September 30, 2017, as compared to 92.3% at September 30, 2016. The rental rate to new tenants on wholly-owned stores for~~during the three and six months ended ~~September~~June 30, ~~2017 increased an average~~2018. These increases were partially offset by decreases of ~~approximately 4.8% over~~$7,038 and $13,713 respectively, due to property sales. Thirty-six stores were sold to a joint venture in which we hold a ten percent interest and is accounted for using the ~~same period in the prior year.~~equity method.

Tenant Reinsurance—The increase in our tenant reinsurance revenues was due primarily to the increase in the number of stores operated. We operated ~~1,513~~1,568 stores at ~~September~~June 30, ~~2017~~2018 compared to ~~1,421~~1,470 stores at ~~September~~June 30, ~~2016. Additionally, the average dollar per policy was higher during the three and nine months ended September 30, 2017 when compared to the same period in the prior year.~~2017.

Management Fees and Other Income—~~Our taxable REIT subsidiary (“TRS”), Extra Space~~ Management ~~Inc., manages~~fees and other income primarily represent the fee collected for our management of stores owned by ~~our~~third parties and unconsolidated joint ~~ventures and third parties. Management fees generally represent approximately 6.0% of cash collected from these stores.~~ventures.

The following table presents information on expenses for the periods indicated:

Property Operations—The ~~increase~~increases in property operations expense during the three and ~~nine~~six months ended ~~September~~June 30, ~~2017 was~~2018 were due primarily to an ~~increase~~increases of ~~$4,460~~$4,787 and ~~$16,943, respectively,~~$8,776 related to store acquisitions completed in ~~2017~~2018 and ~~2016.~~2017. We acquired ~~nine operating~~22 stores during the ~~nine~~six months ended ~~September~~June 30, ~~2017,~~2018 and ~~99 operating~~46 stores during the year ended December 31, ~~2016. In addition, a loss of $2,110,000, net of reinsurance proceeds, was recorded for the three and nine months ended September 30, 2017 related to the recent hurricanes.~~2017.

Tenant Reinsurance—Tenant reinsurance expense represents the costs that are incurred to provide tenant reinsurance. The ~~increase in tenant reinsurance expense~~change is due primarily ~~due~~ to the ~~additional claims from recent hurricanes Harvey, Irma and Maria as well as an~~ increase in the ~~total~~ number of ~~properties covered when compared to the prior year.~~

~~Acquisition Related Costs and Other—For the three and nine months ended September 30, 2016, these costs represented closing and other transaction costs incurred in connection with our acquisition of operating~~ stores ~~which were accounted for as business combinations. On January 1, 2017,~~ we ~~adopted the guidance in ASU 2017-01,~~ ~~"Business Combinations (Topic 805) - Clarifying the Definition of a Business,"~~ ~~which provides that when substantially all of the fair value of the gross assets acquired is concentrated in a single identifiable asset~~ owned and/or a group of similar identifiable assets, the set of assets is not a business. As a result of the adoption of this guidance, acquisitions of operating stores are now considered asset acquisitions, under which transaction costs are capitalized as a component of the cost of the assets acquired, rather than being expensed as incurred as required with business combinations.managed.

General and Administrative—General and administrative expenses primarily include all expenses not directly related to our stores, including corporate payroll, travel and professional fees. These expenses are recognized as incurred. General and administrative expenses for the nine months ended September 30, 2017 decreased when compared to the same period in the prior year primarily as a result of an expense of $4,000 that was recorded during the nine months ended September 30, 2016 related to the accrual of a legal settlement. There were no such expenses during the three and nine months ended September 30, 2017. During the three months ended June 30, 2017, this legal proceeding was settled and a payment was made against the related accrued liability. We did not observe any ~~other~~ material trends in specific payroll, travel or other expenses that contributed to the ~~decrease~~change in general and administrative expenses.

Depreciation and Amortization—Depreciation and amortization expense increased as a result of the acquisition of new stores. We acquired ~~nine operating~~22 stores during the ~~nine~~six months ended ~~September~~June 30, ~~2017~~2018 and ~~99 operating~~46 stores during the year ended December 31, ~~2016.~~2017.

Other Revenues and Expenses

The following table presents information about other revenues and expenses for the periods indicated:

~~Gain (Loss)~~Loss on Real Estate Transactions ~~Earnout from Prior Acquisition~~ and Impairment of Real ~~Estate —~~ Estate—During the ~~nine~~three and six months ended ~~September~~June 30, 2017, we recorded ~~an impairment loss of $6,019 relating~~$6,019 related to ~~one parcel of land held for sale~~impairments in land. There were no similar expenses during the three and ~~an additional two parcels of undeveloped land where the carrying value was greater than the fair value. During the nine~~six months ended ~~September~~June 30, 2016, we recorded a gain of $9,814. This amount was comprised of a gain of $11,358 on the disposition of seven stores in April 2016, and a loss of $1,544, related to an earnout provision from the acquisition of a small portfolio of stores that were acquired in 2014.2018.

Interest Expense—The increase in interest expense during the three and ~~nine~~six months ended ~~September~~June 30, ~~2017 was~~2018 were primarily the result of an overall increase in interest rate and debt ~~this~~during each period when compared to the same ~~period~~periods in the prior year. The average interest rate on our total fixed- and variable-rate debt at June 30, 2018 was 3.4%, compared to 3.2% as of June 30, 2017. Additionally, the total face value of our debt, including our lines of credit, was ~~$4,362,400~~$4,809,483 at ~~September~~June 30, ~~2017~~2018 compared to ~~$4,047,217~~$4,339,163 at ~~September~~June 30, ~~2016. Additionally, the average interest rate on the total of our fixed- and variable-rate debt at September 30, 2017 was 3.3%, compared to 3.1% as of September 30, 2016.~~2017.

Non-cash Interest Expense Related to Amortization of Discount on Equity Component of Exchangeable Senior Notes—Represents the amortization of the discounts related to the equity components of the exchangeable senior notes issued by our Operating Partnership. The 2013 Notes and 2015 Notes both ~~have~~had an effective interest rate of 4.0% relative to the carrying amount of the liability.

Interest Income—Interest income represents amounts earned on cash and cash equivalents deposited with financial institutions, ~~and~~ interest earned on notes ~~receivable. The decrease for the three~~receivable and ~~nine months ended September 30, 2017 related primarily to the decrease in notes~~income earned on note receivable when compared to the same period in the prior year. We had $28,005 of notes receivable included in assets on the condensed consolidated balance sheets as of September 30, 2017, compared to $67,098 as of September 30, 2016.

~~Interest Income on Note Receivable~~ from Preferred Operating Partnership ~~Unit Holders—~~unit holders.Represents interest on a $100,000 loan to the holders of the Series A Participating Redeemable Preferred Units of our Operating Partnership (“Series A Units”). The decreases for the three and nine months ended September 30, 2017 are a result of an amendment signed in April 2017 that decreased the interest rate of the note receivable from 4.9% to 2.1%.

Equity in Earnings of Unconsolidated Real Estate Ventures—Equity in earnings of unconsolidated real estate ventures represents the income earned through our ownership interests in unconsolidated joint ventures. In these joint ventures, we and our joint venture partners generally receive a preferred return on our invested capital. To the extent that cash/profits in excess of these preferred returns are generated, we receive a higher percentage of the excess cash/profits. The increase for the three and nine months ended September 30, 2017 compared to the same period in the prior year was primarily the result of three of our joint ventures generating cash in excess of the preferred returns, resulting in increased distributions and equity in earnings. This increase was slightly offset by a decrease in the number of stores owned by our joint ventures as a result of transactions, including the acquisition of 40 stores from joint ventures during the year ended December 31, 2016.

~~Equity in Earnings of Unconsolidated Real Estate Ventures—Gain on Sale of Real Estate Assets and Purchase of Joint Venture Partners' Interests—~~On February 2, 2016, we acquired six stores from our VRS Self Storage LLC joint venture (“VRS”) in a step acquisition. We recorded a gain of $26,923 as a result of re-measuring to fair value our existing equity interest.

On September 16, 2016, we acquired 23 stores from our ESS PRISA II LLC joint venture ("PRISA II") in a step acquisition. We recorded a gain of $6,662 as a result of re-measuring to fair value our existing equity interest. We then sold our remaining interest in PRISA II to Prudential for $34,758 in cash. As a result of this sale, we recognized a gain of $30,846.

~~There were no such gains during the three and nine months ended September 30, 2017.~~

Income Tax Expense—For the three and ~~nine~~six months ended ~~September~~June 30, ~~2017,~~2018, the decrease in income tax expense ~~was~~relates primarily ~~the result of solar~~to a lower tax ~~credits received during the quarter when compared~~rate from 35% to 21% due to the ~~same period in the prior year.~~

~~Net Income Allocated to Noncontrolling Interests~~

~~The following table presents information on net income allocated to noncontrolling interests for the periods indicated:~~

For the Three Months Ended September 30, For the Nine Months Ended September 30,

2017 2016 $ Change % Change 2017 2016 $ Change % Change
Net income allocated to noncontrolling interests:
Net income allocated to Preferred Operating Partnership noncontrolling interests $ (3,394 ) $ (4,144 ) $ 750
(18.1 )% $ (10,775 ) $ (10,758 ) $ (17 ) 0.2 %
Net income allocated to Operating Partnership and other noncontrolling interests (3,917 ) (4,994 ) 1,077
(21.6 )% (11,080 ) (12,191 ) 1,111
(9.1 )%
Total income allocated to noncontrolling interests: $ (7,311 ) $ (9,138 ) $ 1,827
(20.0 )% $ (21,855 ) $ (22,949 ) $ 1,094
(4.8 )%

~~Net Income Allocated to Preferred Operating Partnership Noncontrolling Interests—Income allocated to the Preferred Operating Partnership noncontrolling interests for the three~~Tax Cuts and ~~nine months ended September 30, 2017 and 2016 represents the fixed distributions paid to holders~~Jobs Act of ~~the Series A Units, Series B Units, Series C Units and Series D Units, plus approximately 0.6% of the remaining net income allocated to holders of the Series A Units.~~

~~Net Income Allocated to Operating Partnership and Other Noncontrolling Interests—~~Income allocated to the Operating Partnership represents approximately 4.0% of net income after the allocation of the fixed distribution paid to the Preferred Operating Partnership unit holders for each of the three and nine months ended September 30, 2017 and 2016.2017.

Funds from Operations (“FFO”) provides relevant and meaningful information about our operating performance that is necessary, along with net income and cash flows, for an understanding of our operating results. We believe FFO is a meaningful disclosure as a supplement to net earnings. Net earnings assume that the values of real estate assets diminish predictably over time as reflected through depreciation and amortization expenses. The values of real estate assets fluctuate due to market conditions and we believe FFO more accurately reflects the value of our real estate assets. FFO is defined by the National Association of Real Estate Investment Trusts, Inc. (“NAREIT”) as net income computed in accordance with GAAP, excluding gains or losses on sales of operating stores and impairment write downs of depreciable real estate assets, plus depreciation and amortization and after adjustments to record unconsolidated partnerships and joint ventures on the same basis. We believe that to further understand our performance, FFO should be considered along with the reported net income and cash flows in accordance with GAAP, as presented in our condensed consolidated financial statements. FFO should not be considered a replacement of net income computed in accordance with GAAP.

The computation of FFO may not be comparable to FFO reported by other REITs or real estate companies that do not define the term in accordance with the current NAREIT definition or that interpret the current NAREIT definition differently. FFO does not represent cash generated from operating activities determined in accordance with GAAP, and should not be considered as an alternative to net income as an indication of our performance, as an alternative to net cash flow from operating activities, as a measure of liquidity, or an indicator of our ability to make cash distributions.

The following table presents the calculation of FFO for the periods indicated:

Our same-store pool for the periods presented consists of ~~732~~787 stores that are wholly-owned and operated and that were stabilized by the first day of the earliest calendar year presented. We consider a store to be stabilized once it has been open for three years or has sustained average square foot occupancy of 80% or more for one calendar year. We believe that by providing same-store results from a stabilized pool of stores, with accompanying operating metrics including, but not limited to: occupancy, rental revenue growth, operating expense growth, net operating income growth, etc., stockholders and potential

investors are able to evaluate operating performance without the effects of non-stabilized occupancy levels, rent levels, expense levels, acquisitions or completed developments. Same-store results should not be used as a basis for future same-store performance or for the performance of our stores as a whole. The following table presents operating data for our same-store portfolio.

Same-store revenues for the three and ~~nine~~six months ended ~~September~~June 30, ~~2017~~2018 increased due to ~~gains in occupancy and~~ higher rental rates for both new and existing ~~customers.~~customers and were partially offset by increased discounts. Expenses were higher for the three months ended ~~September~~June 30, 2017, primarily due to increases in property taxes, ~~and~~ payroll and benefits ~~which~~and marketing. Expenses were ~~partially offset by decreases in repairs and maintenance and insurance. Expenses~~higher for the ~~nine~~six months ended ~~September~~June 30, ~~2017 were generally flat with~~2018, primarily due to increases in property taxes, payroll and ~~marketing expense offset by decreases in repairs~~benefits, snow removal and ~~maintenance and insurance.~~

The following table presents a reconciliation of same-store net operating income to net income as presented on our condensed consolidated statements of operations for the periods indicated:

For the Three Months Ended September 30, For the Nine Months Ended September 30,
2017 2016 2017 2016
Net income $ 101,075
$ 127,226
$ 284,907
$ 306,673
Adjusted to exclude:
Loss (gain) on real estate transactions, earnout from prior acquisition and impairment of real estate —
—
6,019
(9,814 )
Equity in earnings of unconsolidated real estate joint ventures (3,990 ) (3,625 ) (11,407 ) (9,813 )
Equity in earnings of unconsolidated real estate ventures - gain on sale of real estate assets and purchase of joint venture partners interests —
(37,509 ) —
(64,432 )
Acquisition related costs and other¹
—
1,933
—
9,124
Interest expense 41,034
34,737
117,019
101,371
Depreciation and amortization 48,075
46,555
144,139
133,402
Income tax expense 3,163
4,466
9,154
11,004
General and administrative (includes stock compensation) 19,498
19,537
60,171
63,451
Management fees, other income and interest income (11,086 ) (12,576 ) (34,440 ) (38,528 )
Net tenant reinsurance (19,610 ) (18,634 ) (59,054 ) (52,591 )
Non same-store revenue (28,466 ) (14,376 ) (80,556 ) (27,268 )
Non same-store expenses 11,247
4,834
29,709
11,063
Total same-store NOI $ 160,940
$ 152,568
$ 465,661
$ 433,642

Same-store rental revenues $ 220,123
$ 210,075
$ 640,322
$ 608,462
Same-store operating expenses 59,183
57,507
174,661
174,820
Total same-store NOI $ 160,940
$ 152,568
$ 465,661
$ 433,642



	For the Three Months Ended June 30,						For the Six Months Ended June 30,
	2018			2017			2018			2017
Net Income	$	102,713		$	94,098		$	198,143		$	183,832
Adjusted to exclude:
Loss (gain) on real estate transactions, earnout from prior acquisition and impairment of real estate	—			6,019			—			6,019
Equity in earnings of unconsolidated joint ventures	(3,429		)	(3,838		)	(7,026		)	(7,417		)
Interest expense	44,523			38,746			86,698			75,985
Depreciation and amortization	51,892			46,632			103,641			96,064
Income tax expense	2,097			2,867			3,439			5,991
General and administrative	21,651			21,865			43,115			40,673
Management fees, other income and interest income	(11,352		)	(12,379		)	(23,355		)	(23,354		)
Net Tenant Insurance	(23,050		)	(20,509		)	(44,477		)	(39,444		)
Non Same Store Revenue	(18,336		)	(10,464		)	(32,137		)	(19,390		)
Non Same Store Expense	7,062			4,331			12,942			8,429
Total Same Store NOI	$	173,771		$	167,368		$	340,983		$	327,388

Same-store rental revenues	$	239,792		$	230,332		$	473,877		$	452,899
Same-store operating expenses	66,021			62,964			132,894			125,511
Same-store net operating income	$	173,771		$	167,368		$	340,983		$	327,388

Cash flows provided by operating activities were ~~$449,629~~$339,742 and ~~$386,159,~~$289,049, respectively, for the ~~nine~~six months ended ~~September~~June 30, ~~2017~~2018 and ~~2016. The increase was~~2017. Cash flows from operating activities were higher primarily due to ~~a non-cash gain on~~an increase of $25,978 in the ~~purchase of joint venture partners’ interests of $64,432 recorded during~~change in accounts payable and accrued expenses when compared with the ~~nine~~six months ended September 30, 2016. This gain was related to the two step acquisitions of stores that were previously owned by our VRS and PRISA II joint ventures and the sale of our remaining interest in PRISA II. Additionally, there was a non-cash loss taken related to real estate and land impairments of $6,019 during the nine months ended SeptemberJune 30, 2017. There ~~was~~were also ~~an increase~~increases of $14,836 in ~~depreciation~~the change in other liabilities and ~~amortization expense of $10,737~~$14,311 in net income when compared ~~with~~to the same period in the prior year.

Cash used in investing activities was ~~$87,744~~$229,095 and ~~$704,310,~~$46,154, respectively, for the ~~nine~~six months ended ~~September~~June 30, ~~2017~~2018 and ~~2016.~~2017. The ~~decrease~~increase was primarily due to ~~a decrease~~an increase in cash paid for the acquisition of real estate assets of ~~$644,206.~~$165,502. We purchased ~~nine~~22 stores during the ~~nine~~six months ended ~~September~~June 30, ~~2017,~~2018, compared to 72five stores purchased during the ~~nine~~six months ended ~~September~~June 30, ~~2016.~~2017. An additional $32,082 of cash was paid for the investment in unconsolidated real estate ventures for the six months ended June 30, 2018 when compared with the six months ended June 30, 2017. Additionally, we received $19,643 more in principal payments on notes receivable during the six months ended June 30, 2017, than during the six months ended June 30, 2018. These increases in cash used in investing activities were offset by an increase of $47,363 in cash received as a return of investment in unconsolidated real estate ventures.

Cash used in financing activities was ~~$342,011~~$127,585 and 252,225 for the ~~nine~~six months ended ~~September~~June 30, 2018 and 2017, ~~compared to cash provided by financing activities of $261,044 for the nine months ended September 30, 2016.~~respectively. The change related primarily to ~~an increase~~cash paid for the repurchase of our 2013 exchangeable senior notes of $58,469. This was offset by a decrease in principal payments on notes payable and revolving lines of credit of ~~$454,603 as well as in increase in the dividend paid of $25,124~~$199,427 for the ~~nine~~six months ended ~~September~~June 30, ~~2017~~2018 when compared to the same period in the prior year. ~~For the nine months ended September 30, 2016 we received net proceeds from the sale of common stock of $123,423 and no similar proceeds were received during the nine months ended September 30, 2017.~~

As of ~~September~~June 30, ~~2017,~~2018, we had ~~$63,732~~$49,194 available in cash and cash equivalents. ~~We are required to distribute at least 90% of our net taxable income, excluding net capital gains, to our stockholders on an annual basis to maintain our qualification as a REIT.~~

Our cash and cash equivalents are held in accounts managed by third party financial institutions and consist of invested cash and cash in our operating accounts. During ~~2016~~2018 and ~~the first nine months of~~ 2017, we experienced no loss or lack of access to our cash or cash equivalents; however, there can be no assurance that access to our cash and cash equivalents will not be impacted by adverse conditions in the financial markets.

~~The following table presents information on our lines of credit for the period presented. All of our lines of credit are guaranteed by us.~~

As of September 30, 2017
Revolving Lines of Credit Amount Drawn Capacity Interest Rate Origination Date Maturity
Basis Rate ⁽¹⁾
Credit Line 1 ⁽²⁾
$ 25,000
$ 100,000
2.9 % 6/4/2010 6/30/2018 LIBOR plus 1.7%
Credit Line 2 ⁽³⁾⁽⁴⁾
—
500,000
2.6 % 10/14/2016 10/14/2020 LIBOR plus 1.4%
$ 25,000
$ 600,000

As of ~~September~~June 30, ~~2017,~~2018, we had ~~$4,362,400~~$4,809,483 face value of debt, resulting in a debt to total enterprise value ratio of ~~28.9%~~26.4%. As of ~~September~~June 30, ~~2017,~~2018, the ratio of total fixed-rate debt and other instruments to total debt was ~~80.8%~~72.8% (including ~~$2,382,873~~$2,385,098 on which we have interest rate swaps that have been included as fixed-rate debt). The weighted average interest rate of the total of fixed- and variable-rate debt at ~~September~~June 30, ~~2017~~2018 was ~~3.3%~~3.4%. Certain of our real estate assets are pledged as collateral for our debt. We are subject to certain restrictive covenants relating to our outstanding debt. We were in compliance with all financial covenants at ~~September~~June 30, ~~2017.~~2018.

We expect to fund our short-term liquidity requirements, including operating expenses, recurring capital expenditures, dividends to stockholders, distributions to holders of Operating Partnership units and interest on our outstanding indebtedness, out of our operating cash flow, cash on hand and borrowings under our revolving lines of credit, including undrawn portions of our unsecured facility. In addition, we are pursuing additional sources of financing based on anticipated funding needs.

~~On June 29, 2017 the Company's Operating Partnership entered an agreement for the private placement of $300 million of~~

~~10-year 3.95% senior notes. The notes were issued on August 24, 2017. The net proceeds have been used to refinance existing indebtedness and for general corporate purposes.~~

Our liquidity needs consist primarily of cash distributions to stockholders, store acquisitions, principal payments under our borrowings and non-recurring capital expenditures. We may from time to time seek to repurchase our outstanding debt, shares of common stock or other securities in open market purchases, privately negotiated transactions or otherwise. Such repurchases, if any, will depend on prevailing market conditions, our liquidity requirements, contractual restrictions and other factors. In addition, we evaluate, on an ongoing basis, the merits of strategic acquisitions and other relationships, which may require us to raise additional funds. We do not expect that our operating cash flow or cash balances will be sufficient to fund our liquidity needs and instead expect to fund such needs out of additional borrowings of secured or unsecured indebtedness, joint ventures with third parties, and from the proceeds of public and private offerings of equity and debt. Additional capital may not be available on terms favorable to us or at all. Any additional issuance of equity or equity-linked securities may result in dilution to our stockholders. In addition, any new securities we issue could have rights, preferences and privileges senior to holders of our

~~common stock. We~~ may also use Operating Partnership units as currency to fund acquisitions from self-storage ~~owners who desire tax-deferral in their exiting transactions.~~owners.

Except as disclosed in the notes to our consolidated financial statements of our most recently filed Annual Report on

Form 10-K, we do not currently have any relationships with unconsolidated entities or financial partnerships, such as entities often referred to as structured finance or special purposes entities, which typically are established for the purpose of facilitating off-balance sheet arrangements or other contractually narrow or limited purposes. Further, except as disclosed in the notes to our condensed consolidated financial statements, we have not guaranteed any obligations of unconsolidated entities, nor do we have any commitments or intent to provide funding to any such entities. Accordingly, we are not materially exposed to any financing, liquidity, market or credit risk that could arise if we had engaged in these relationships.



STATEMENT ON FORWARD-LOOKING INFORMATION	4

PART I. FINANCIAL INFORMATION	5
ITEM 1. FINANCIAL STATEMENTS	5
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS (unaudited)	11
ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS	2728
ITEM 3. QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK	4337
ITEM 4. CONTROLS AND PROCEDURES	4437

PART II. OTHER INFORMATION	4539
ITEM 1. LEGAL PROCEEDINGS	4539
ITEM 1A. RISK FACTORS	4539
ITEM 2. UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS	4539
ITEM 3. DEFAULTS UPON SENIOR SECURITIES	4539
ITEM 4. MINE SAFETY DISCLOSURES	4539
ITEM 5. OTHER INFORMATION	4539
ITEM 6. EXHIBITS	4640
SIGNATURES	4741


	September 30, 2017			December 31, 2016			June 30, 2018			December 31, 2017
	(Unaudited)						(Unaudited)
Assets:
Real estate assets, net	$	6,770,086		$	6,770,447		$	7,390,080		$	7,132,431
Investments in unconsolidated real estate ventures	78,512			79,570			97,556			75,907
Cash and cash equivalents	63,732			43,858			49,194			55,683
Restricted cash	17,277			13,884			19,912			30,361
Receivables from related parties and affiliated real estate joint ventures	4,618			16,611
Other assets, net	152,730			167,076			165,207			166,571
Total assets	$	7,086,955		$	7,091,446		$	7,721,949		$	7,460,953
Liabilities, Noncontrolling Interests and Equity:
Notes payable, net	$	3,568,113		$	3,213,588		$	3,829,564		$	3,738,497
Exchangeable senior notes, net	602,485			610,314			570,425			604,276
Notes payable to trusts, net	117,414			117,321			117,506			117,444
Revolving lines of credit	25,000			365,000			250,000			94,000
Cash distributions in unconsolidated real estate ventures							43,737			5,816
Accounts payable and accrued expenses	114,247			101,388			107,252			96,087
Other liabilities	85,971			87,669			87,663			81,026
Total liabilities	4,513,230			4,495,280			5,006,147			4,737,146
Commitments and contingencies
Noncontrolling Interests and Equity:
Extra Space Storage Inc. stockholders' equity:
Preferred stock, $0.01 par value, 50,000,000 shares authorized, no shares issued or outstanding	—			—			—			—
Common stock, $0.01 par value, 500,000,000 shares authorized, 126,007,207 and 125,881,460 shares issued and outstanding at September 30, 2017 and December 31, 2016, respectively	1,260			1,259
Common stock, $0.01 par value, 500,000,000 shares authorized, 126,146,055 and 126,007,091 shares issued and outstanding at June 30, 2018 and December 31, 2017, respectively							1,261			1,260
Additional paid-in capital	2,567,234			2,566,120			2,554,447			2,569,485
Accumulated other comprehensive income	17,731			16,770			62,930			33,290
Accumulated deficit	(370,959		)	(339,257		)	(276,688		)	(253,284		)
Total Extra Space Storage Inc. stockholders' equity	2,215,266			2,244,892			2,341,950			2,350,751
Noncontrolling interest represented by Preferred Operating Partnership units, net of $120,230 notes receivable	154,432			147,920
Noncontrolling interest represented by Preferred Operating Partnership units, net of $119,735 and $120,230 notes receivable as of June 30, 2018 and December 31, 2017, respectively							160,104			159,636
Noncontrolling interests in Operating Partnership	202,232			203,354			213,509			213,301
Other noncontrolling interests	1,795			—			239			119
Total noncontrolling interests and equity	2,573,725			2,596,166			2,715,802			2,723,807
Total liabilities, noncontrolling interests and equity	$	7,086,955		$	7,091,446		$	7,721,949		$	7,460,953


	For the Three Months Ended September 30,				For the Nine Months Ended September 30,					For the Three Months Ended June 30,					For the Six Months Ended June 30,
	2017		2016		2017		2016			2018		2017			2018		2017
Net income	$	101,075	$	127,226	$	284,907	$	306,673		$	102,713	$	94,098		$	198,143	$	183,832
Other comprehensive income (loss):
Change in fair value of interest rate swaps	759		13,374		992		(36,571		)	8,033		(6,101		)	31,096		233
Total comprehensive income	101,834		140,600		285,899		270,102			110,746		87,997			229,239		184,065
Less: comprehensive income attributable to noncontrolling interests	7,342		9,761		21,886		21,120			7,934		6,804			16,190		14,544
Comprehensive income attributable to common stockholders	$	94,492	$	130,839	$	264,013	$	248,982		$	102,812	$	81,193		$	213,049	$	169,521


				Fair Value Measurements at Reporting Date Using									Fair Value Measurements at Reporting Date Using
Description	September 30, 2017			Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)			Significant Unobservable Inputs (Level 3)		June 30, 2018		Quoted Prices in Active Markets for Identical Assets (Level 1)		Significant Other Observable Inputs (Level 2)		Significant Unobservable Inputs (Level 3)
Other assets - Cash Flow Hedge Swap Agreements	$	23,584		$	—	$	23,584		$	—	$	69,258	$	—	$	69,258	$	—
Other liabilities - Cash Flow Hedge Swap Agreements	$	(1,430	)	$	—	$	(1,430	)	$	—


	September 30, 2017				December 31, 2016				June 30, 2018				December 31, 2017
	Fair Value		Carrying Value		Fair Value		Carrying Value		Fair Value		Carrying Value		Fair Value		Carrying Value
Notes receivable from Preferred Operating Partnership unit holders	$	114,506	$	120,230	$	125,642	$	120,230	$	111,322	$	119,735	$	113,683	$	120,230
Fixed rate notes receivable	$	21,285	$	20,608	$	53,450	$	52,201	$	—	$	—	$	20,942	$	20,608
Fixed rate notes payable and notes payable to trusts	$	2,882,709	$	2,900,822	$	2,404,996	$	2,417,558	$	2,835,283	$	2,916,055	$	2,774,242	$	2,815,085
Exchangeable senior notes	$	702,118	$	624,384	$	706,827	$	638,170	$	674,567	$	586,550	$	719,056	$	624,259



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



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


	Noncontrolling Interests																		Extra Space Storage Inc. Stockholders' Equity															Noncontrolling Interests																	Extra Space Storage Inc. Stockholders' Equity
	Preferred Operating Partnership																																	Preferred Operating Partnership
	Series A			Series B			Series C			Series D			Operating Partnership			Other			Shares		Par Value		Additional Paid-in Capital			Accumulated Other Comprehensive Income		Accumulated Deficit			Total Noncontrolling Interests and Equity			Series A			Series B			Series C			Series D			Operating Partnership			Other		Shares		Par Value		Additional Paid-in Capital			Accumulated Other Comprehensive Income		Accumulated Deficit			Total Noncontrolling Interests and Equity
Balances at December 31, 2016	$	14,385		$	41,902		$	10,730		$	80,903		$	203,354		$	—		125,881,460		$	1,259	$	2,566,120		$	16,770	$	(339,257	)	$	2,596,166
Balances at December 31, 2017																																		$	14,940		$	41,902		$	10,730		$	92,064		$	213,301		$	119	126,007,091		$	1,260	$	2,569,485		$	33,290	$	(253,284	)	$	2,723,807
Issuance of common stock upon the exercise of options	—			—			—			—			—			—			38,418		—		1,266			—		—			1,266			—			—			—			—			—			—		54,575		1		1,169			—		—			1,170
Restricted stock grants issued	—			—			—			—			—			—			93,796		1		(1		)	—		—			—			—			—			—			—			—			—		81,470		—		—			—		—			—
Restricted stock grants cancelled	—			—			—			—			—			—			(6,467	)	—		—			—		—			—			—			—			—			—			—			—		(7,081	)	—		—			—		—			—
Compensation expense related to stock-based awards	—			—			—			—			—			—			—		—		7,244			—		—			7,244			—			—			—			—			—			—		—		—		5,842			—		—			5,842
Repayment of receivable for preferred operating units pledged as collateral on loan																																		—			—			495			—			—			—		—		—		—			—		—			495
Issuance of Operating Partnership units in conjunction with acquisitions	—			—			—			—			2,000			—			—		—		—			—		—			2,000			—			—			—			—			1,877			—		—		—		—			—		—			1,877
Redemption of Operating Partnership units for stock																																		—			—			—			—			(383		)	—		10,000		—		383			—		—			—
Redemption of Operating Partnership units for cash	—			—			—			—			(1,238		)	—			—		—		(1,272		)	—		—			(2,510		)	—			—			—			—			(1,126		)	—		—		—		(1,432		)	—		—			(2,558		)
Issuance of Preferred D Units in the Operating Partnership in conjunction with acquisitions	—			—			—			6,810			—			—			—		—		—			—		—			6,810
Noncontrolling Interest in consolidated joint venture	—			—			—			—			—			1,868			—		—		—			—		—			1,868
Noncontrolling interest in consolidated joint venture																																		—			—			—			—			—			120		—		—		—			—		—			120
Repurchase of equity portion of 2013 exchangeable senior notes	—			—			—			—			—			—			—		—		(6,123		)	—		—			(6,123		)	—			—			—			—			—			—		—		—		(21,000		)	—		—			(21,000		)
Net income (loss)	4,294			1,886			2,028			2,567			11,153			(73		)	—		—		—			—		263,052			284,907
Net income																																		2,359			1,257			1,408			1,858			7,852			—		—		—		—			—		183,409			198,143
Other comprehensive income	4			—			—			—			27			—			—		—		—			961		—			992			194			—			—			—			1,262			—		—		—		—			29,640		—			31,096
Distributions to Operating Partnership units held by noncontrolling interests	(4,596		)	(1,886		)	(2,028		)	(2,567		)	(13,064		)	—			—		—		—			—		—			(24,141		)	(2,580		)	(1,257		)	(1,408		)	(1,858		)	(9,274		)	—		—		—		—			—		—			(16,377		)
Dividends paid on common stock at $2.34 per share	—			—			—			—			—			—			—		—		—			—		(294,754		)	(294,754		)
Balances at September 30, 2017	$	14,087		$	41,902		$	10,730		$	87,713		$	202,232		$	1,795		126,007,207		$	1,260	$	2,567,234		$	17,731	$	(370,959	)	$	2,573,725
Dividends paid on common stock at $1.64 per share																																		—			—			—			—			—			—		—		—		—			—		(206,813		)	(206,813		)
Balances at June 30, 2018																																		$	14,913		$	41,902		$	11,225		$	92,064		$	213,509		$	239	126,146,055		$	1,261	$	2,554,447		$	62,930	$	(276,688	)	$	2,715,802



					Consideration Paid												Total
Property Location	Number of Stores	Date of Acquisition	Total		Cash Paid		Loan Assumed		Non- controlling interests		Net Liabilities/(Assets) Assumed			Value of OP Units Issued		Number of OP Units Issued	Real estate assets
Georgia	1	9/1/2017	$	4,246	$	4,220	$	—	$	—	$	26		$	—	—	$	4,246
Florida	1	8/4/2017	9,047		7,058		—		—		(11		)	2,000		25,520	9,047
North Carolina	1	7/13/2017	8,422		8,426		—		—		(4		)	—		—	8,422
Virginia	1	7/13/2017	10,251		10,215		—		—		36			—		—	10,251
Florida	1	6/12/2017	11,100		4,270		—		—		20			6,810		272,400	11,100
Florida	1	4/25/2017	7,377		7,400		—		—		(23		)	—		—	7,377
Pennsylvania	1	4/11/2017	16,164		4,938		9,463		1,827		(64		)	—		—	16,164
Illinois	1	2/1/2017	9,028		9,020		—		—		8			—		—	9,028
Georgia	1	1/6/2017	16,528		16,521		—		—		7			—		—	16,528
2017 Totals	9		$	92,163	$	72,068	$	9,463	$	1,827	$	(5	)	$	8,810	297,920	$	92,163


	Notes payable to Trusts			Investment Balance		Maximum exposure to loss		Difference		Notes payable to Trusts			Investment Balance		Maximum exposure to loss		Difference
Trust	$	36,083		$	1,083	$	35,000	$	—	$	36,083		$	1,083	$	35,000	$	—
Trust II	42,269			1,269		41,000		—		42,269			1,269		41,000		—
Trust III	41,238			1,238		40,000		—		41,238			1,238		40,000		—
	119,590			$	3,590	$	116,000	—		119,590			$	3,590	$	116,000	—
Unamortized debt issuance costs	(2,176		)							(2,084		)
	$	117,414								$	117,506


	Asset (Liability) Derivatives						Asset / Liability Derivatives
	September 30, 2017			December 31, 2016			June 30, 2018		December 31, 2017
Derivatives designated as hedging instruments:	Fair Value						Fair Value
Other assets	$	23,584		$	23,844		$	69,258	$	38,365
Other liabilities	$	(1,430	)	$	(2,447	)	$	—	$	9


	Gain (loss) recognized in OCI For the Three Months Ended September 30,					Location of amounts reclassified from OCI into income	Gain (loss) reclassified from OCI For the Three Months Ended September 30,						Gain (loss) recognized in OCI For the Three Months Ended June 30,					Location of amounts reclassified from OCI into income	Gain (loss) reclassified from OCI For the Three Months Ended June 30,
Type	2017			2016		Location of amounts reclassified from OCI into income	2017			2016			2018		2017			Location of amounts reclassified from OCI into income	2018		2017
Swap Agreements	$	(787	)	$	8,451	Interest expense	$	(1,572	)	$	(4,926	)	$	9,967	$	(8,693	)	Interest Expense	$	1,883	$	(2,594	)


	Gain (loss) recognized in OCI For the Nine Months Ended September 30,						Location of amounts reclassified from OCI into income	Gain (loss) reclassified from OCI For the Nine Months Ended September 30,						Gain (loss) recognized in OCI For the Six Months Ended June 30,					Location of amounts reclassified from OCI into income	Gain (loss) reclassified from OCI For the Six Months Ended June 30,
Type	2017			2016			Location of amounts reclassified from OCI into income	2017			2016			2018		2017			Location of amounts reclassified from OCI into income	2018		2017
Swap Agreements	$	(6,474	)	$	(50,165	)	Interest expense	$	(7,497	)	$	(14,240	)	$	33,285	$	(5,687	)	Interest expense	$	2,124	$	(5,924	)


				For the Six Months Ended June 30,
	July/August 2017			2018
Principal amount repurchased	$	13,786		$	37,709
Amount allocated to:
Extinguishment of liability component	$	13,568		$	37,469
Reacquisition of equity component	6,285			21,000
Total consideration paid for repurchase	$	19,853		$	58,469
Exchangeable senior notes repurchased	$	13,786		$	37,709
Extinguishment of liability component	(13,568		)	(37,469		)
Discount on exchangeable senior notes	(183		)	(230		)
Related debt issuance costs	(35		)	(10		)
Gain/(loss) on repurchase	$	—		$	—


~~10.~~11.	NONCONTROLLING INTEREST REPRESENTED BY PREFERRED OPERATING PARTNERSHIP UNITS


1.	ORGANIZATION


2.	BASIS OF PRESENTATION


3.	FAIR VALUE DISCLOSURES


4.	EARNINGS PER COMMON SHARE



	September 30, 2017		December 31, 2016
Balance Sheet
Investment in unconsolidated real estate ventures
Rental operations	$	78,512	$	79,570
Total assets
Rental operations	$	6,728,499	$	6,731,292
Tenant reinsurance	42,786		44,524
Property management, acquisition and development	315,670		315,630
	$	7,086,955	$	7,091,446



		Company	Pro forma	Company	Pro forma	Company		Pro forma
Location	Number of Stores	Number of Units as of September 30, 2017 ⁽¹⁾	Number of Units as of September 30, 2016	Net Rentable Square Feet as of September 30, 2017 ⁽²⁾	Net Rentable Square Feet as of September 30, 2016	Square Foot Occupancy % September 30, 2017		Square Foot Occupancy % September 30, 2016
Wholly-Owned Stores
Alabama	8	4,691	4,650	556,216	556,971	91.2	%	90.1	%
Arizona	22	13,773	13,640	1,530,770	1,531,922	93.6	%	91.3	%
California	143	110,726	108,965	11,395,369	11,369,700	95.3	%	94.4	%
Colorado	13	7,080	6,656	852,884	822,689	91.6	%	91.6	%
Connecticut	7	5,101	4,966	496,026	485,247	94.0	%	92.9	%
Florida	78	56,628	55,796	5,965,751	5,942,885	94.4	%	93.1	%
Georgia	49	30,130	29,401	3,811,743	3,765,111	94.1	%	91.7	%
Hawaii	9	8,550	8,523	603,411	603,349	93.8	%	93.2	%
Illinois	27	19,152	18,703	2,057,271	2,016,245	92.6	%	92.0	%
Indiana	15	7,924	7,802	943,029	940,348	93.3	%	93.2	%
Kansas	1	532	529	49,989	49,999	96.3	%	96.2	%
Kentucky	10	5,901	5,876	767,669	757,090	91.9	%	91.8	%
Louisiana	2	1,407	1,405	149,930	149,880	95.2	%	93.3	%
Maryland	29	22,487	22,337	2,294,086	2,291,567	92.6	%	92.5	%
Massachusetts	38	23,924	23,815	2,363,571	2,363,819	94.1	%	91.6	%
Michigan	4	2,401	2,388	324,276	323,976	94.8	%	94.4	%
Minnesota	1	740	740	74,550	74,550	94.0	%	76.7	%
Mississippi	3	1,510	1,511	217,442	218,282	92.5	%	89.7	%
Missouri	6	3,332	3,290	389,411	385,951	94.2	%	92.4	%
Nevada	15	9,191	9,111	1,313,933	1,313,545	95.3	%	92.6	%
New Hampshire	2	1,046	1,043	125,987	126,053	89.8	%	94.5	%
New Jersey	58	45,967	45,458	4,507,390	4,498,001	95.3	%	93.1	%
New Mexico	12	6,656	6,579	751,518	749,053	94.7	%	93.4	%
New York	21	19,310	19,241	1,553,309	1,549,618	93.5	%	92.9	%
North Carolina	12	7,937	7,845	848,649	847,269	92.5	%	90.8	%
Ohio	17	9,545	9,536	1,250,475	1,248,121	92.8	%	92.5	%
Oregon	4	2,792	2,738	327,487	326,977	93.7	%	91.6	%
Pennsylvania	14	9,832	9,625	1,053,644	1,046,635	91.8	%	91.2	%
Rhode Island	2	1,301	1,274	131,021	131,521	95.7	%	95.0	%
South Carolina	21	12,082	11,898	1,572,859	1,569,374	92.6	%	89.5	%
Tennessee	23	13,041	12,864	1,755,104	1,767,356	92.9	%	92.3	%
Texas	90	59,106	58,661	7,582,540	7,526,015	92.6	%	90.0	%
Utah	7	3,861	3,870	476,999	477,034	93.7	%	94.2	%


	For the Three Months Ended September 30,						Percent		For the Nine Months Ended September 30,						Percent		For the Three Months Ended June 30,						Percent		For the Six Months Ended June 30,						Percent
	2017			2016			Change		2017			2016			Change		2018			2017			Change		2018			2017			Change
Same-store rental revenues	$	220,123		$	210,075		4.8	%	$	640,322		$	608,462		5.2	%	$	239,792		$	230,332		4.1	%	$	473,877		$	452,899		4.6	%
Same-store operating expenses	59,183			57,507			2.9	%	174,661			174,820			(0.1	)%	66,021			62,964			4.9	%	132,894			125,511			5.9	%
Same-store net operating income	$	160,940		$	152,568		5.5	%	$	465,661		$	433,642		7.4	%	$	173,771		$	167,368		3.8	%	$	340,983		$	327,388		4.2	%
Same-store square foot occupancy as of quarter end	93.9		%	92.5		%			93.9		%	92.5		%			94.2		%	94.3		%			94.2		%	94.3		%
Properties included in same-store	732			732					732			732					787			787					787			787


~~(1)~~	~~Beginning January 1, 2017, acquisition related costs have been capitalized due to a change in accounting literature.~~



	As of September 30, 2017
Revolving Lines of Credit	Amount Drawn		Capacity		Interest Rate		Origination Date	Maturity	Basis Rate ⁽¹⁾
Credit Line 1 ⁽²⁾	$	25,000	$	100,000	2.9	%	6/4/2010	6/30/2018	LIBOR plus 1.7%
Credit Line 2 ⁽³⁾⁽⁴⁾	—		500,000		2.6	%	10/14/2016	10/14/2020	LIBOR plus 1.4%
	$	25,000	$	600,000


⁽²⁾	~~Secured by mortgages on certain real estate assets. One two-year extension available.~~


⁽⁴⁾	~~Basis rate as of September 30, 2017. Rate is subject to change based on a quarterly assessment of our consolidated leverage ratio.~~


ITEM 3.	QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK


ITEM 2.	UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS


10.1	Note Purchase Agreement, dated as of May 25, 2018, by and among Extra Space Storage Inc., Extra Space Storage LP and the purchasers named therein (incorporated by reference to Exhibit 10.1 to the Current Report on Form 8-K filed on May 31, 2018).


31.1	Certification of Chief Executive Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.


31.2	Certification of Chief Financial Officer pursuant to Section 302 of the Sarbanes-Oxley Act of 2002.


32.1	Certifications of the Chief Executive Officer and Chief Financial Officer pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.



		EXTRA SPACE STORAGE INC.
		Registrant

Date: ~~November 3, 2017~~August 9, 2018		/s/ Joseph D. Margolis
		Joseph D. Margolis
		Chief Executive Officer (Principal Executive Officer)

Date: ~~November 3, 2017~~August 9, 2018		/s/ P. Scott Stubbs
		P. Scott Stubbs
		Executive Vice President and Chief Financial Officer
		(Principal Financial Officer)

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