UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q

(Mark One)
þQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
  For the quarterly period ended March 31,September 30, 2017
¨TRANSITION REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
 For the transition period from             to  

Commission file number: 001-31343

Associated Banc-Corp
(Exact name of registrant as specified in its charter)


Wisconsin  39-1098068
(State or other jurisdiction of
incorporation or organization)
  
(I.R.S. Employer
Identification No.)
   
433 Main Street
Green Bay, Wisconsin
  54301
(Address of principal executive offices)  (Zip Code)


(920) 491-7500
(Registrant’s telephone number, including area code)


(Former name, former address and former fiscal year, if changed since last report)


Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
Yes  þ        No  ¨
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Website, if any, every Interactive Data File required to be submitted and posted pursuant to Rule 405 of Regulation S-T (§ 232.405 of this chapter) during the preceding 12 months (or for such shorter period that the registrant was required to submit and post such files).
Yes  þ        No  ¨


Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer, a non-accelerated filer, or a smaller reporting company, or an emerging growth company. See the definitions of “large accelerated filer,” “accelerated filer”filer,” “smaller reporting company” and “smaller reporting“emerging growth company” in Rule 12b-2 of the Exchange Act.
Large accelerated filer  þ
Accelerated filer  ¨
  
Non-accelerated filer  ¨
Smaller reporting company ¨
(Do not check if a smaller reporting company) 
Emerging growth company ¨

Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).

Yes  ¨        No  þ


Indicate by check mark whether the registrant is an emerging growth company as defined in Rule 405 of the Securities Act of 1933 (§230.405 of this chapter) or Rule 12b-2 of the Securities Exchange Act of 1934 (§240.12b-2 of this chapter).
Emerging growth company  ¨
If an emerging growth company, indicate by check mark if the registrant has elected not to use the extended transition period for complying with any new or revised financial accounting standards provided pursuant to Section 13(a) of the Exchange Act. ¨


APPLICABLE ONLY TO CORPORATE ISSUERS:


The number of shares outstanding of registrant’s common stock, par value $0.01 per share, at April 26,October 25, 2017, was 152,319,854.151,164,803.


1







ASSOCIATED BANC-CORP
TABLE OF CONTENTS
  Page
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 
   
 


2







PART I - FINANCIAL INFORMATION
ITEM 1.Financial Statements:
ASSOCIATED BANC-CORP
Consolidated Balance Sheets
 September 30, 2017 December 31, 2016
 (Unaudited) (Audited)
 (In Thousands, except share and per share data)
Assets   
Cash and due from banks$354,331
 $446,558
Interest-bearing deposits in other financial institutions109,596
 149,175
Federal funds sold and securities purchased under agreements to resell27,700
 46,500
Investment securities held to maturity, at amortized cost2,233,579
 1,273,536
Investment securities available for sale, at fair value3,801,699
 4,680,226
Federal Home Loan Bank and Federal Reserve Bank stocks, at cost172,446
 140,001
Residential loans held for sale(1)
113,064
 108,010
Commercial loans held for sale9,718
 12,474
Loans20,931,460
 20,054,716
Allowance for loan losses(276,551) (278,335)
Loans, net20,654,909
 19,776,381
Premises and equipment, net330,065
 330,315
Bank and corporate owned life insurance589,093
 585,290
Goodwill972,006
 971,951
Mortgage servicing rights, net58,377
 61,476
Other intangible assets, net14,080
 15,377
Trading assets48,429
 52,398
Other assets575,455
 489,647
Total assets$30,064,547
 $29,139,315
Liabilities and Stockholders' Equity   
Noninterest-bearing demand deposits$5,177,734
 $5,392,208
Interest-bearing deposits17,155,717
 16,496,240
Total deposits22,333,451
 21,888,448
Federal funds purchased and securities sold under agreements to repurchase476,550
 508,347
Other short-term funding588,067
 583,688
Long-term funding3,147,285
 2,761,795
Trading liabilities46,812
 51,103
Accrued expenses and other liabilities268,781
 254,622
Total liabilities26,860,946
 26,048,003
Stockholders’ Equity   
Preferred equity159,929
 159,929
Common equity   
Common stock1,615
 1,630
Surplus1,442,328
 1,459,498
Retained earnings1,792,184
 1,695,764
Accumulated other comprehensive income (loss)(54,288) (54,679)
Treasury stock, at cost(138,167) (170,830)
Total common equity3,043,672
 2,931,383
Total stockholders’ equity3,203,601
 3,091,312
Total liabilities and stockholders’ equity$30,064,547
 $29,139,315
Preferred shares issued165,000
 165,000
Preferred shares authorized (par value $1.00 per share)750,000
 750,000
Common shares issued161,460,708
 163,030,209
Common shares authorized (par value $0.01 per share)250,000,000
 250,000,000
Treasury shares of common stock9,143,102
 10,909,362
 March 31, 2017 December 31, 2016
  (Unaudited)  (Audited)
 (In Thousands, except share and per share data)
ASSETS   
Cash and due from banks$332,601
 $446,558
Interest-bearing deposits in other financial institutions337,167
 149,175
Federal funds sold and securities purchased under agreements to resell19,700
 46,500
Investment securities held to maturity, at amortized cost1,554,843
 1,273,536
Investment securities available for sale, at fair value4,300,490
 4,680,226
Federal Home Loan Bank and Federal Reserve Bank stocks, at cost139,273
 140,001
Residential loans held for sale(1)
34,051
 108,010
Commercial loans held for sale2,901
 12,474
Loans20,147,683
 20,054,716
Allowance for loan losses(282,672) (278,335)
Loans, net19,865,011
 19,776,381
Premises and equipment, net332,884
 330,315
Goodwill972,006
 971,951
Mortgage servicing rights, net60,702
 61,476
Other intangible assets15,026
 15,377
Trading assets49,306
 52,398
Other assets1,093,896
 1,074,937
Total assets$29,109,857
 $29,139,315
LIABILITIES AND STOCKHOLDERS’ EQUITY   
Noninterest-bearing demand deposits$5,338,212
 $5,392,208
Interest-bearing deposits16,489,823
 16,496,240
Total deposits21,828,035
 21,888,448
Federal funds purchased and securities sold under agreements to repurchase650,188
 508,347
Other short-term funding430,679
 583,688
Long-term funding2,761,955
 2,761,795
Trading liabilities47,561
 51,103
Accrued expenses and other liabilities246,645
 254,622
Total liabilities25,965,063
 26,048,003
Stockholders’ equity   
Preferred equity159,929
 159,929
Common equity:   
Common stock1,630
 1,630
Surplus1,469,744
 1,459,498
Retained earnings1,709,514
 1,695,764
Accumulated other comprehensive income (loss)(56,344) (54,679)
Treasury stock, at cost(139,679) (170,830)
Total common equity2,984,865
 2,931,383
Total stockholders’ equity3,144,794
 3,091,312
Total liabilities and stockholders’ equity$29,109,857
 $29,139,315
Preferred shares issued165,000
 165,000
Preferred shares authorized (par value $1.00 per share)750,000
 750,000
Common shares issued163,030,209
 163,030,209
Common shares authorized (par value $0.01 per share)250,000,000
 250,000,000
Treasury shares of common stock9,296,566
 10,909,362
(1)Effective January 1, 2017, residential loans originated for sale are accounted for under the fair value option. Prior periods have not been restated. For more information on this accounting policy change, please refer to Note 3 to the Notes to the Consolidated Financial Statements.


See accompanying notes to consolidated financial statements.




Item 1. Financial Statements Continued:
ASSOCIATED BANC-CORP
Consolidated Statements of Income (Unaudited)
Three months ended March 31,Three Months Ended September 30, Nine Months Ended September 30,
2017 20162017 2016 2017 2016
(In Thousands, except per share data)(In Thousands, except per share data)
INTEREST INCOME 
Interest Income 
Interest and fees on loans$173,649
 $159,656
$196,972
 $167,350
 $554,867
 $490,065
Interest and dividends on investment securities:          
Taxable23,475
 25,516
24,162
 22,948
 71,295
 72,734
Tax-exempt8,129
 7,830
8,268
 8,141
 24,540
 23,865
Other interest1,536
 1,067
2,492
 1,064
 5,581
 3,449
Total interest income206,789
 194,069
231,894
 199,503
 656,283
 590,113
INTEREST EXPENSE   
Interest Expense       
Interest on deposits16,924
 11,766
27,778
 13,118
 65,882
 36,562
Interest on Federal funds purchased and securities sold under agreements to repurchase515
 296
768
 326
 2,107
 1,000
Interest on other short-term funding1,080
 515
1,039
 296
 3,946
 1,656
Interest on long-term funding7,996
 9,505
12,187
 7,229
 30,133
 23,657
Total interest expense26,515
 22,082
41,772
 20,969
 102,068
 62,875
NET INTEREST INCOME180,274
 171,987
Net Interest Income190,122
 178,534
 554,215
 527,238
Provision for credit losses9,000
 20,000
5,000
 21,000
 26,000
 55,000
Net interest income after provision for credit losses171,274
 151,987
185,122
 157,534
 528,215
 472,238
NONINTEREST INCOME   
Noninterest Income       
Trust service fees11,935
 11,447
12,785
 11,700
 37,066
 34,656
Service charges on deposit accounts16,356
 16,273
16,268
 17,445
 48,654
 50,162
Card-based and other nondeposit fees12,465
 11,991
12,619
 12,777
 38,848
 37,485
Insurance commissions21,620
 21,382
19,815
 19,431
 62,288
 62,818
Brokerage and annuity commissions4,333
 3,794
4,392
 4,155
 13,071
 12,047
Mortgage banking, net4,579
 4,204
6,585
 18,291
 16,191
 26,562
Capital market fees, net3,883
 3,538
4,610
 7,012
 12,535
 14,343
Bank owned life insurance income2,615
 4,770
Bank and corporate owned life insurance income6,580
 3,290
 13,094
 11,033
Asset gains (losses), net
(234) 524
(16) (1,034) (716) (853)
Investment securities gains, net
 3,098
Investment securities gains (losses), net3
 (13) 359
 6,201
Other2,279
 2,171
2,254
 2,180
 6,746
 6,140
Total noninterest income79,831
 83,192
85,895
 95,234
 248,136
 260,594
NONINTEREST EXPENSE   
Noninterest Expense       
Personnel expense104,419
 101,398
105,852
 103,819
 314,954
 307,346
Occupancy15,219
 13,802
12,294
 15,362
 40,345
 42,379
Equipment5,485
 5,446
5,232
 5,319
 15,951
 16,161
Technology14,420
 14,264
15,233
 14,173
 45,126
 42,887
Business development and advertising5,835
 8,211
7,764
 5,251
 20,751
 20,053
Other intangible amortization513
 504
450
 525
 1,459
 1,568
Loan expense2,620
 3,221
3,330
 3,535
 8,924
 10,198
Legal and professional fees4,166
 5,025
6,248
 4,804
 16,125
 14,685
Foreclosure / OREO expense, net
1,505
 1,877
906
 960
 3,593
 4,167
FDIC expense8,000
 7,750
7,800
 9,000
 23,800
 25,500
Other11,509
 12,473
12,318
 12,566
 36,406
 38,701
Total noninterest expense173,691
 173,971
177,427
 175,314
 527,434
 523,645
Income before income taxes77,414
 61,208
93,590
 77,454
 248,917
 209,187
Income tax expense21,144
 18,674
28,589
 23,638
 69,663
 63,746
Net income56,270
 42,534
Net Income65,001
 53,816
 179,254
 145,441
Preferred stock dividends2,330
 2,198
2,339
 2,188
 7,008
 6,555
Net income available to common equity$53,940
 $40,336
$62,662
 $51,628
 $172,246
 $138,886
Earnings per common share:          
Basic$0.36
 $0.27
$0.41
 $0.34
 $1.13
 $0.92
Diluted$0.35
 $0.27
$0.41
 $0.34
 $1.11
 $0.92
Average common shares outstanding:          
Basic150,815
 148,601
150,565
 148,708
 150,983
 148,607
Diluted153,869
 149,454
152,968
 149,973
 153,782
 149,645

See accompanying notes to consolidated financial statements.




Item 1. Financial Statements Continued:
ASSOCIATED BANC-CORP
Consolidated Statements of Comprehensive Income (Unaudited)
 Three Months Ended March 31,
 2017 2016
 ($ in Thousands)
Net income$56,270
 $42,534
Other comprehensive income, net of tax:   
Investment securities available for sale:   
Net unrealized gains3,152
 60,422
Net unrealized losses on available for sale securities transferred to held to maturity securities(5,264) 
Amortization of net unrealized gains on available for sale securities transferred to held to maturity securities(1,027) (1,572)
Reclassification adjustment for net gains realized in net income
 (3,098)
Income tax (expense) benefit1,195
 (21,275)
Other comprehensive income (loss) on investment securities available for sale(1,944) 34,477
Defined benefit pension and postretirement obligations:   
Amortization of prior service cost(38) 13
Amortization of actuarial losses488
 482
Income tax expense(171) (189)
Other comprehensive income on pension and postretirement obligations279
 306
Total other comprehensive income (loss)(1,665) 34,783
Comprehensive income$54,605
 $77,317
 Three Months Ended September 30, Nine Months Ended September 30,
 20172016 20172016
 ($ in Thousands)
Net income$65,001
$53,816
 $179,254
$145,441
Other comprehensive income, net of tax     
Investment securities available for sale     
Net unrealized gains (losses)(1,986)(22,894) 16,384
59,849
Net unrealized gain (loss) on available for sale securities transferred to held to maturity securities

 (14,738)
Amortization of net unrealized gain (loss) on available for sale securities transferred to held to maturity securities76
(1,441) (2,499)(4,465)
Reclassification adjustment for net gains (losses) realized in net income(1)

13
 
(6,201)
Income tax (expense) benefit734
9,280
 328
(18,768)
Other comprehensive income (loss) on investment securities available for sale(1,176)(15,042) (525)30,415
Defined benefit pension and postretirement obligations     
Amortization of prior service cost(38)(80) (113)(55)
Amortization of actuarial loss (gains)621
621
 1,596
1,586
Income tax (expense) benefit(225)(206) (567)(584)
Other comprehensive income (loss) on pension and postretirement obligations358
335
 916
947
Total other comprehensive income (loss)(818)(14,707) 391
31,362
Comprehensive income$64,183
$39,109
 $179,645
$176,803
(1)Includes only available for sale securities.


See accompanying notes to consolidated financial statements.






Item 1. Financial Statements Continued:
ASSOCIATED BANC-CORP
Consolidated Statements of Changes in Stockholders’ Equity (Unaudited)
Preferred Equity Common Stock Surplus 
Retained
Earnings
 
Accumulated
Other
Comprehensive
Income (Loss)
 Treasury Stock TotalPreferred Equity Common Stock Surplus 
Retained
Earnings
 
Accumulated
Other
Comprehensive
Income (Loss)
 Treasury Stock Total
(In Thousands, except per share data)(In Thousands, except per share data)
Balance, December 31, 2015$121,379
 $1,642
 $1,458,522
 $1,593,239
 $(32,616) $(204,920) $2,937,246
$121,379
 $1,642
 $1,458,522
 $1,593,239
 $(32,616) $(204,920) $2,937,246
Comprehensive income:             
Comprehensive income             
Net income
 
 
 42,534
 
 
 42,534

 
 
 145,441
 
 
 145,441
Other comprehensive income
 
 
 
 34,783
 
 34,783

 
 
 
 31,362
 
 31,362
Comprehensive income            77,317
            176,803
Common stock issued:             
Common stock issued             
Stock-based compensation plans, net
 
 613
 (17,271) 
 18,863
 2,205

 
 1,785
 (18,070) 
 24,034
 7,749
Purchase of common stock returned to authorized but unissued
 (12) (19,995) 
 
 
 (20,007)
 (12) (19,995) 
 
 
 (20,007)
Purchase of treasury stock
 
 
 
 
 (2,792) (2,792)
 
 
 
 
 (4,243) (4,243)
Cash dividends:             
Common stock, $0.11 per share
 
 
 (16,409) 
 
 (16,409)
Cash dividends             
Common stock, $0.33 per share
 
 
 (49,642) 
 
 (49,642)
Preferred stock
 
 
 (2,198) 
 
 (2,198)
 
 
 (6,555) 
 
 (6,555)
Issuance of preferred stock97,066
 
 
 
 
 
 97,066
Redemption of preferred stock(57,338) 
 
 (1,565) 
 
 (58,903)
Purchase of preferred stock(1,032) 
 
 (60) 
 
 (1,092)(1,178) 
 
 (70) 
 
 (1,248)
Stock-based compensation expense, net
 
 8,066
 
 
 
 8,066

 
 18,047
 
 
 
 18,047
Tax impact of stock-based compensation
 
 162
 
 
 
 162
Balance, March 31, 2016$120,347
 $1,630
 $1,447,368
 $1,599,835
 $2,167
 $(188,849) $2,982,498
Other
 
 802
 
 
 
 802
Balance, September 30, 2016$159,929
 $1,630
 $1,459,161
 $1,662,778
 $(1,254) $(185,129) $3,097,115
             
Balance, December 31, 2016$159,929
 $1,630
 $1,459,498
 $1,695,764
 $(54,679) $(170,830) $3,091,312
$159,929
 $1,630
 $1,459,498
 $1,695,764
 $(54,679) $(170,830) $3,091,312
Comprehensive income:             
Comprehensive income             
Net income
 
 
 56,270
 
 
 56,270

 
 
 179,254
 
 
 179,254
Other comprehensive income
 
 
 
 (1,665) 
 (1,665)
 
 
 
 391
 
 391
Comprehensive income            54,605
            179,645
Common stock issued:             
Common stock issued             
Stock-based compensation plans, net
 
 868
 (21,822) 
 38,894
 17,940

 
 1,952
 (20,768) 
 41,276
 22,460
Purchase of common stock returned to authorized but unissued


 (15) (37,016) 
 
 
 (37,031)
Purchase of treasury stock
 
 
 
 
 (7,743) (7,743)
 
 
 
 
 (8,613) (8,613)
Cash dividends:             
Common stock, $0.12 per share
 
 
 (18,368) 
 
 (18,368)
Cash dividends             
Common stock, $0.36 per share
 
 
 (55,058) 
 
 (55,058)
Preferred stock
 
 
 (2,330) 
 
 (2,330)
 
 
 (7,008) 
 
 (7,008)
Stock-based compensation expense, net
 
 8,344
 
 
 
 8,344

 
 16,860
 
 
 
 16,860
Other
 
 1,034
 
 
 
 1,034

 
 1,034
 
 
 
 1,034
Balance, March 31, 2017$159,929
 $1,630
 $1,469,744
 $1,709,514
 $(56,344) $(139,679) $3,144,794
Balance, September 30, 2017$159,929
 $1,615
 $1,442,328
 $1,792,184
 $(54,288) $(138,167) $3,203,601

See accompanying notes to consolidated financial statements.




Item 1. Financial Statements Continued:
ASSOCIATED BANC-CORP
Consolidated Statements of Cash Flows (Unaudited)
Three Months Ended March 31,Nine Months Ended September 30,
2017 20162017 2016
($ in Thousands)($ in Thousands)
CASH FLOWS FROM OPERATING ACTIVITIES   
Cash Flow From Operating Activities   
Net income$56,270
 $42,534
$179,254
 $145,441
Adjustments to reconcile net income to net cash provided by operating activities:   
Adjustments to reconcile net income to net cash provided by operating activities   
Provision for credit losses9,000
 20,000
26,000
 55,000
Depreciation and amortization11,505
 11,060
35,054
 34,121
Addition to valuation allowance on mortgage servicing rights, net217
 909
286
 2,486
Amortization of mortgage servicing rights2,477
 2,874
7,635
 9,142
Amortization of other intangible assets513
 504
1,459
 1,568
Amortization and accretion on earning assets, funding, and other, net8,215
 10,692
27,230
 34,077
Tax impact of stock based compensation3,486
 162
Net amortization of tax credit investments14,685
 4,437
Gain on sales of investment securities, net
 (3,098)(359) (6,201)
Asset (gains) losses, net234
 (524)716
 853
(Gain) loss on mortgage banking activities, net5,171
 (3,106)(3,762) (21,741)
Mortgage loans originated and acquired for sale(101,280) (193,849)(466,135) (983,930)
Proceeds from sales of mortgage loans held for sale196,578
 221,764
551,697
 1,147,278
Increase in interest receivable(761) (5,180)
Decrease in interest payable(185) (6,121)
Commercial loans held for sale(2,155) (30,089)
Deferred pension cost - contributions(6,242) 
(Increase) decrease in interest receivable(9,765) (5,809)
Increase (decrease) in interest payable3,410
 (5,994)
Net change in other assets and other liabilities(19,532) (46,160)(44,882) 5,451
Net cash provided by operating activities169,753
 22,372
316,281
 416,179
CASH FLOWS FROM INVESTING ACTIVITIES   
Cash Flow From Investing Activities   
Net increase in loans(113,051) (531,891)(991,334) (1,461,884)
Purchases of:   
Purchases of   
Available for sale securities(163,442) (182,895)(701,080) (849,466)
Held to maturity securities(2,655) (28,570)(121,596) (151,556)
Federal Home Loan Bank and Federal Reserve Bank stocks(58,362) (34,613)(195,356) (72,975)
Premises, equipment, and software, net of disposals(13,586) (70,685)(32,925) (90,691)
Other assets(5,433) (1,226)
Proceeds from:   
Proceeds from   
Sales of available for sale securities
 119,379

 359,591
Sales of held to maturity securities16,059
 
Sale of Federal Home Loan Bank and Federal Reserve Bank stocks59,090
 
162,911
 80,000
Prepayments, calls, and maturities of available for sale investment securities231,019
 180,458
551,962
 651,403
Prepayments, calls, and maturities of held to maturity investment securities22,916
 15,029
151,565
 55,579
Sales, prepayments, calls, and maturities of other assets3,293
 9,566
10,833
 19,351
Net change in tax credit investments(35,027) (13,138)
Net cash paid in acquisition(217) (685)(217) (685)
Net cash used in investing activities(40,428) (526,133)(1,184,205) (1,474,471)
CASH FLOWS FROM FINANCING ACTIVITIES   
Net decrease in deposits(60,413) (322,205)
Cash Flow From Financing Activities   
Net increase (decrease) in deposits445,003
 740,047
Net increase (decrease) in short-term funding(11,168) 582,992
(27,418) 405,677
Repayment of long-term funding(8) (430,010)(115,017) (1,180,027)
Proceeds from issuance of long-term funding
 615,000
500,000
 1,265,000
Proceeds from issuance of preferred shares
 97,066
Proceeds from issuance of common stock for stock-based compensation plans17,940
 2,205
22,460
 7,749
Redemption of preferred shares
 (58,903)
Purchase of preferred stock
 (1,092)
 (1,248)
Purchase of common stock returned to authorized but unissued
 (20,007)(37,031) (20,007)
Purchase of treasury stock for tax withholding(7,743) (2,792)(8,613) (4,243)
Cash dividends on common stock(18,368) (16,409)(55,058) (49,642)
Cash dividends on preferred stock(2,330) (2,198)(7,008) (6,555)
Net cash provided (used) by financing activities(82,090) 405,484
Net cash provided by financing activities717,318
 1,194,914
Net increase (decrease) in cash and cash equivalents47,235
 (98,277)(150,606) 136,622
Cash and cash equivalents at beginning of period642,233
 473,685
642,233
 473,685
Cash and cash equivalents at end of period$689,468
 $375,408
$491,627
 $610,307
Supplemental disclosures of cash flow information:   
Supplemental disclosures of cash flow information   
Cash paid for interest$26,531
 $28,041
$98,151
 $68,371
Cash paid for income taxes1,052
 1,167
61,959
 53,126
Loans and bank premises transferred to other real estate owned921
 3,160
5,872
 8,834
Capitalized mortgage servicing rights1,920
 1,856
4,822
 8,701
Loans transferred into held for sale from portfolio, net13,905
 
75,289
 256,188
Acquisition:   
Acquisition   
Fair value of assets acquired, including cash and cash equivalents
 522

 522
Fair value ascribed to goodwill and intangible assets217
 4,119
217
 4,119
Fair value of liabilities assumed
 1,423

 1,423

See accompanying notes to consolidated financial statements.




Item 1. Financial Statements Continued:
ASSOCIATED BANC-CORP
Notes to Consolidated Financial Statements


These interim consolidated financial statements have been prepared according to the rules and regulations of the Securities and Exchange Commission and, therefore, certain information and footnote disclosures normally presented in accordance with U.S. generally accepted accounting principles have been omitted or abbreviated. The information contained in the consolidated financial statements and footnotes in the Corporation's 2016 Annual Report on Form 10-K, should be referred to in connection with the reading of these unaudited interim financial statements.
Note 1 Basis of Presentation
In the opinion of management, the accompanying unaudited consolidated financial statements contain all adjustments necessary to present fairly the financial position, results of operations and comprehensive income, changes in stockholders’ equity, and cash flows of Associated Banc-Corp (individually referred to herein as the “Parent Company,” and together with all of its subsidiaries and affiliates, collectively referred to herein as the “Corporation”) for the periods presented, and all such adjustments are of a normal recurring nature. The consolidated financial statements include the accounts of all subsidiaries. All significant intercompany transactions and balances have been eliminated in consolidation. The results of operations for the interim periods are not necessarily indicative of the results to be expected for the full year.
In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenues and expenses for the period. Actual results could differ significantly from those estimates. Estimates that are particularly susceptible to significant change include the determination of the allowance for loan losses, goodwill impairment assessment, mortgage servicing rights valuation, and income taxes. Management has evaluated subsequent events for potential recognition or disclosure.
Note 2 Acquisitions
Completed Acquisitions
During the first quarter of 2017, the Corporation completed a small insurance acquisition to complement its existing insurance and benefits related products and services provided by Associated Benefits and Risk Consulting ("ABRC"). The Corporation recorded goodwill of $55,000 and other intangibles of $162,000 related to the insurance acquisition.
During the first quarter of 2016, the Corporation completed two small insurance acquisitions to complement its existing insurance and benefits related products and services provided by ABRC. The Corporation recorded goodwill of $3 million and other intangibles of $1 million related to these insurance acquisitions.
See Note 8 for additional information on goodwill and other intangible assets.

Acquisitions Update
On October 2, 2017, the Corporation completed its previously announced acquisition of Whitnell & Co., a wealth management family services firm based in Oak Brook, IL.
On July 20, 2017, the Corporation and Bank Mutual Corporation ("Bank Mutual") jointly announced that they had entered into an Agreement and Plan of Merger, dated as of July 20, 2017 (the "Merger Agreement") under which Bank Mutual will merge with and into the Corporation. Under the terms of the Merger Agreement, Bank Mutual's shareholders will receive 0.422 shares of Corporation common stock for each share of Bank Mutual's common stock. Subject to customary closing conditions, including regulatory approvals and approval by the Bank Mutual shareholders, the transaction is expected to close in the first quarter of 2018.





Note 3 Summary of Significant Accounting Policies
Accounting Policy Elections
Effective January 1, 2017, residential mortgage loans that are classified as held for sale are accounted using the fair value option method of accounting. The Corporation has elected the fair value option to mitigate accounting mismatches between held for sale loan valuations and corresponding derivative commitments. Prior to January 1, 2017,residential mortgage loans that were classified as held for sale were accounted for at the lower of cost or market method (“LOCOM”) of accounting.


New Accounting Pronouncements Adopted
Standard Description Date of adoption Effect on financial statements
ASU 2017-08 Receivables - Nonrefundable Fees and Other Costs (Subtopic 310-20), Premium Amortization on Purchased Callable Debt Securities The FASB issued amendments of the new standardto require that certain purchased callable debt securities held at a premium be amortized to the earliest call date. The amendments do not require an accounting change for securities held at a discount, which continue to be amortized to maturity. 1st Quarter 2017 The Corporation early adopted the accounting standard with no material impact on results of operations, financial position, or liquidity.
ASU 2017-03 Accounting Changes and Error Corrections (Topic 250) and Investments - Equity Method and Joint Ventures (Topic 323) The standard states that for ASUs which have not been adopted yet, the registrant needs to determine the potential effects (if material) of those ASUs on the financial statements when adopted and include the appropriate disclosures in the financial statements. If the impact of adoption is unknown or cannot be estimated, the registrant should include a statement noting this and consider adding qualitative disclosures to the financial statements to assist the reader in evaluating the impact of the ASUs, when adopted, on the financial statements. 1st Quarter 2017 No material impact on results of operations, financial position, or liquidity.
ASU 2016-17 Consolidation (Topic 810): Interests Held through Related Parties That Are underUnder Common Control The FASB issued an amendment to address how a reporting entity that is a single decision maker of a variable interest entity treats indirect interests in the entity held through related parties that are under common control with the reporting entity. 1st Quarter 2017 No material impact on results of operations, financial position, or liquidity.
ASU 2016-09 Compensation - Stock Compensation (Topic 718): Improvements to Employee Share-Based Payment Accounting 
The FASB issued an amendment involving several aspects of the accounting for 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. Entities should apply the amendment related to the timing of when excess tax benefits are recognized, minimum statutory withholding requirements, forfeitures, and intrinsic value using a modified retrospective transition method by means of a cumulative-effect adjustment to equity as of the beginning of the period in which the guidance is adopted. Entities should apply the amendment related to the presentation of employee taxes paid on the statement of cash flows when an employer withholds shares to meet the minimum statutory withholding requirement retrospectively. The amendment requiring recognition of excess tax benefits and tax deficiencies in the income statement and the practical expedient for estimating expected term should be applied prospectively.


 4th Quarter 2016 The Corporation early adopted the accounting standard and recognized a $1 million reduction in income taxes for the excess tax benefits on stock-based compensation. The remaining provisions of this accounting standard did not have a material impact.impact on the results of operations, financial position, or liquidity.
ASU 2016-07 Investments - Equity Method and Joint Ventures (Topic 323): Simplifying the Transition to the Equity Method of Accounting The FASB issued an amendment to eliminate the requirement that when an investment qualifies for use of the equity method as a result of an increase in the level of ownership interest or degree of influence, an investor must adjust the investment, results of operations, and retained earnings retroactively on a step-by-step basis as if the equity method had been in effect during all previous periods that the investment had been held. The amendments requireamendment requires that the equity method investor add the cost of acquiring the additional interestinterests in the investee to the current basis of the investor’s previously held interest and adopt the equity method of accounting as of the date the investment becomes qualified for equity method accounting. Therefore, upon qualifying for the equity method of accounting, no retroactive adjustment of the investment is required. The amendments requireamendment requires that an entity that has an available-for-sale equity security that becomes qualified for the equity method of accounting recognize through earnings the unrealized holding gain or loss in accumulated other comprehensive income at the date the investment becomes qualified for use of the equity method. Entities should apply the amendment prospectively to increases in the level of ownership interest or degree of influence that result in the adoption of the equity method. 1st Quarter 2017 No material impact on results of operations, financial position, or liquidity.




Note 4 Earnings Per Common Share
Earnings per common share are calculated utilizing the two-class method. Basic earnings per common share are calculated by dividing the sum of distributed earnings to common shareholders and undistributed earnings allocated to common shareholders by the weighted average number of common shares outstanding. Diluted earnings per common share are calculated by dividing the sum of distributed earnings to common shareholders and undistributed earnings allocated to common shareholders by the weighted average number of common shares outstanding adjusted for the dilutive effect of common stock awards (outstanding stock options and unvested restricted stock awards,awards) and outstanding common stock warrants).warrants. Presented below are the calculations for basic and diluted earnings per common share.
 For the Three Months Ended September 30, For the Nine Months Ended September 30,
 2017 2016 2017 2016
 (In thousands, except per share data)
Net income$65,001
 $53,816
 $179,254
 $145,441
Preferred stock dividends(2,339) (2,188) (7,008) (6,555)
Net income available to common equity$62,662
 $51,628
 $172,246
 $138,886
Common shareholder dividends(18,149) (16,431) (54,726) (49,077)
Unvested share-based payment awards(105) (177) (332) (565)
Undistributed earnings$44,408
 $35,020
 $117,188
 $89,244
Undistributed earnings allocated to common shareholders44,150
 34,645
 116,418
 88,294
Undistributed earnings allocated to unvested share-based payment awards258
 375
 770
 950
Undistributed earnings$44,408
 $35,020
 $117,188
 $89,244
Basic       
Distributed earnings to common shareholders$18,149
 $16,431
 $54,726
 $49,077
Undistributed earnings allocated to common shareholders44,150
 34,645
 116,418
 88,294
Total common shareholders earnings, basic$62,299
 $51,076
 $171,144
 $137,371
Diluted       
Distributed earnings to common shareholders$18,149
 $16,431
 $54,726
 $49,077
Undistributed earnings allocated to common shareholders44,150
 34,645
 116,418
 88,294
Total common shareholders earnings, diluted$62,299
 $51,076
 $171,144
 $137,371
Weighted average common shares outstanding150,565
 148,708
 150,983
 148,607
Effect of dilutive common stock awards1,815
 1,265
 2,081
 1,038
Effect of dilutive common stock warrants588
 
 718
 
Diluted weighted average common shares outstanding152,968
 149,973
 153,782
 149,645
Basic earnings per common share$0.41
 $0.34
 $1.13
 $0.92
Diluted earnings per common share$0.41
 $0.34
 $1.11
 $0.92
 For the Three Months Ended March 31,
 2017 2016
 (In thousands, except per share data)
Net income$56,270
 $42,534
Preferred stock dividends(2,330) (2,198)
Net income available to common equity$53,940
 $40,336
Common shareholder dividends(18,251) (16,203)
Unvested share-based payment awards(117) (206)
Undistributed earnings$35,572
 $23,927
Undistributed earnings allocated to common shareholders35,294
 23,686
Undistributed earnings allocated to unvested share-based payment awards278
 241
Undistributed earnings$35,572
 $23,927
Basic   
Distributed earnings to common shareholders$18,251
 $16,203
Undistributed earnings allocated to common shareholders35,294
 23,686
Total common shareholders earnings, basic$53,545
 $39,889
Diluted   
Distributed earnings to common shareholders$18,251
 $16,203
Undistributed earnings allocated to common shareholders35,294
 23,686
Total common shareholders earnings, diluted$53,545
 $39,889
Weighted average common shares outstanding150,815
 148,601
Effect of dilutive common stock awards3,054
 853
Diluted weighted average common shares outstanding153,869
 149,454
Basic earnings per common share$0.36
 $0.27
Diluted earnings per common share$0.35
 $0.27

Anti-dilutive common stock options of approximately 500,0001 million and 34 million for the three months ended March 31,September 30, 2017 and 2016, respectively, and approximately 1 million and 4 million for the nine months ended September 30, 2017 and 2016, respectively, were excluded from the earnings per common share calculation. Warrants to purchase approximately 4 million shares were outstanding for the three and nine months ended March 31,September 30, 2016, but excluded from the calculation of diluted earnings per common shares as the effect would have been anti-dilutive.
Note 5 Stock-Based Compensation
The fair value of stock options granted is estimated on the date of grant using a Black-Scholes option pricing model, while the fair value of restricted stock awards is their fair market value on the date of grant. The fair values of stock options and restricted stock awards are amortized as compensation expense on a straight-line basis over the vesting period of the grants. For retirement eligible colleagues, expenses related to stock options and restricted stock awards are fully recognized on the date the colleague meets the definition of normal or early retirement. Compensation expense recognized is included in personnel expense in the consolidated statements of income.
Assumptions are used in estimating the fair value of stock options granted. The weighted average expected life of the stock option represents the period of time that stock options are expected to be outstanding and is estimated using historical data of stock option exercises and forfeitures. The risk-free interest rate is based on the U.S. Treasury yield curve in effect at the time of grant. The expected volatility is based on the implied volatility of the Corporation’s stock.



The following assumptions were used in estimating the fair value for options granted in the first threenine months of 2017 and full year 2016.
 2017 2016
Dividend yield2.00% 2.50%
Risk-free interest rate2.00% 2.00%
Weighted average expected volatility25.00% 25.00%
Weighted average expected life5.5 years
 5.5 years
Weighted average per share fair value of options$5.30 $3.36
 2017 2016
Dividend yield2.00% 2.50%
Risk-free interest rate2.00% 2.00%
Weighted average expected volatility25.00% 25.00%
Weighted average expected life5.5 years
 5.5 years
Weighted average per share fair value of options$5.30 $3.36

A summary of the Corporation’s stock option activity for the threenine months ended March 31,September 30, 2017 is presented below.
Stock OptionsShares 
Weighted Average
Exercise Price
 Weighted Average Remaining Contractual Term 
Aggregate Intrinsic Value(a)
Outstanding at December 31, 20166,357,843
 $17.67
 6.10 $47,902
Granted799,558
 25.61
    
Exercised(1,291,244) 16.32
    
Forfeited or expired(506,395) 31.90
    
Outstanding at September 30, 20175,359,762
 $18.07
 6.55 $34,334
Options Exercisable at September 30, 20173,072,811
 $16.54
 5.25 $23,911

(a)$ in Thousands

Stock OptionsShares 
Weighted Average
Exercise Price
 Weighted Average Remaining Contractual Term Aggregate Intrinsic Value (000s)
Outstanding at December 31, 20166,357,843
 $17.67
 6.10 $47,902
Granted799,558
 $25.61
    
Exercised(1,038,549) 16.28
    
Forfeited or expired(432,001) 33.74
    
Outstanding at March 31, 20175,686,851
 $18.07
 7.00 $37,180
Options Exercisable at March 31, 20173,153,070
 $16.47
 5.59 $25,258
Intrinsic value represents the amount by which the fair market value of the underlying stock exceeds the exercise price of the stock option. For the threenine months ended March 31,September 30, 2017, the intrinsic value of stock options exercised was approximately $10$12 million. For the threenine months ended March 31,September 30, 2016, the intrinsic value of the stock options exercised was $420,000.$2 million. The total fair value of stock options vested was $4 million and $3 million for both the threenine months ended March 31,September 30, 2017 and March 31, 2016.September 30, 2016, respectively. The Corporation recognized compensation expense for the vesting of stock options of $1$3 million for both the threenine months ended March 31,September 30, 2017 and March 31,September 30, 2016. Included in compensation expense for 2017 was approximately $450,000$570,000 of expense for the accelerated vesting of stock options granted to retirement eligible colleagues. At March 31,September 30, 2017, the Corporation had $7approximately $5 million of unrecognized compensation expense related to stock options that is expected to be recognized over the remaining requisite service periods that extend predominantly through the fourthfirst quarter 2020.2021.
The following table summarizes information about the Corporation’s restricted stock activity for the threenine months ended March 31,September 30, 2017.
Restricted StockShares 
Weighted Average
Grant Date Fair Value
Outstanding at December 31, 20162,377,380
 $17.40
Granted748,024
 25.55
Vested(872,020) 17.92
Forfeited(101,703) 20.02
Outstanding at September 30, 20172,151,681
 $19.94
Restricted StockShares 
Weighted Average
Grant Date Fair Value
Outstanding at December 31, 20162,377,380
 $17.40
Granted729,135
 25.59
Vested(788,033) 17.87
Forfeited(52,838) 17.92
Outstanding at March 31, 20172,265,644
 $19.86

The Corporation amortizes the expense related to restricted stock awards as compensation expense over the vesting period specified in the grant.grant's award agreement. Performance-based restricted stock awards granted during 2016 and 2017 will vest ratably over a three year period, while service-based restricted stock awards granted during 2016 and 2017 will vest ratably over a four year period. Expense for restricted stock awards of approximately $7$14 million werewas recorded for both the threenine months ended March 31,September 30, 2017 and March 31,approximately $15 million for the nine months ended September 30, 2016. Included in compensation expense for 2017 was approximately $2 million of expense for the accelerated vesting of restricted stock awards granted to retirement eligible colleagues. The Corporation had $30$22 million of unrecognized compensation costs related to restricted stock awards at March 31,September 30, 2017, that is expected to be recognized over the remaining requisite service periods that extend predominantly through the fourthfirst quarter 2020.2021.
The Corporation has the ability to issue shares from treasury or new shares upon the exercise of stock options or the granting of restricted stock awards. The Board of Directors has authorized management to repurchase shares of the Corporation’s common stock in the market, to be made available for issuance in connection with the Corporation’s employee incentive plans and for other corporate purposes. The repurchase of shares will be based on market and investment opportunities, capital levels, growth prospects,


and regulatory constraints. Such repurchases may occur from time to time in open market purchases, block transactions, private transactions, accelerated share repurchase programs, or similar facilities.


Note 6 Investment Securities
Investment securities are generally classified as available for sale or held to maturity at the time of purchase. The majority of the Corporation's investment securities are mortgage-related securities issued by the Government National Mortgage Association (“GNMA”) or government-sponsored enterprises ("GSE") such as the Federal National Mortgage Association (“FNMA”) and the Federal Home Loan Mortgage Corporation (“FHLMC”). The amortized cost and fair values of securities available for sale and held to maturity were as follows.
 September 30, 2017
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 Fair Value
 
 
  ($ in Thousands)
 Investment securities available for sale       
 U. S. Treasury securities$1,003
 $
 $(2) $1,001
 Residential mortgage-related securities       
 FNMA / FHLMC494,041
 12,780
 (1,560) 505,261
 GNMA1,681,380
 2,504
 (16,048) 1,667,836
 Private-label1,083
 
 (11) 1,072
 GNMA commercial mortgage-related securities1,539,169
 73
 (26,165) 1,513,077
 Asset backed securities108,590
 63
 (25) 108,628
 Other securities (debt and equity)4,718
 132
 (26) 4,824
 Total investment securities available for sale$3,829,984
 $15,552
 $(43,837) $3,801,699
 Investment securities held to maturity       
 Obligations of state and political subdivisions (municipal securities)$1,192,290
 $14,525
 $(3,858) $1,202,957
 Residential mortgage-related securities       
 FNMA / FHLMC42,386
 464
 (404) 42,446
 GNMA444,196
 3,712
 (2,615) 445,293
 GNMA commercial mortgage-related securities554,707
 10,250
 (11,808) 553,149
 Total investment securities held to maturity$2,233,579
 $28,951
 $(18,685) $2,243,845
 March 31, 2017
Amortized
Cost
 
Gross
Unrealized
Gains
 
Gross
Unrealized
Losses
 Fair Value
 
 
  ($ in Thousands)
 Investment securities available for sale:       
 U. S. Treasury securities$1,004
 $1
 $
 $1,005
 Residential mortgage-related securities:       
 FNMA / FHLMC575,826
 15,710
 (1,117) 590,419
 GNMA2,063,054
 1,837
 (25,065) 2,039,826
 Private-label1,118
 
 (16) 1,102
 GNMA commercial mortgage-related securities1,696,287
 145
 (33,095) 1,663,337
 Other securities (debt and equity)4,718
 94
 (11) 4,801
 Total investment securities available for sale$4,342,007
 $17,787
 $(59,304) $4,300,490
 Investment securities held to maturity:       
 Obligations of state and political subdivisions (municipal securities)$1,131,526
 $7,150
 $(9,479) $1,129,197
 Residential mortgage-related securities:       
 FNMA / FHLMC38,829
 403
 (727) 38,505
 GNMA88,256
 146
 (762) 87,640
 GNMA commercial mortgage-related securities296,232
 5,005
 (6,257) 294,980
 Total investment securities held to maturity$1,554,843
 $12,704
 $(17,225) $1,550,322

 December 31, 2016Amortized
Cost
 Gross
Unrealized
Gains
 Gross
Unrealized
Losses
 Fair Value
 
 
  ($ in Thousands)
 Investment securities available for sale       
 U. S. Treasury securities$1,000
 $
 $
 $1,000
 Residential mortgage-related securities       
 FNMA / FHLMC625,234
 17,298
 (2,602) 639,930
 GNMA2,028,301
 1,372
 (25,198) 2,004,475
 Private-label1,134
 1
 (14) 1,121
 GNMA commercial mortgage-related securities2,064,508
 356
 (35,966) 2,028,898
 Other securities (debt and equity)4,718
 105
 (21) 4,802
 Total investment securities available for sale$4,724,895
 $19,132
 $(63,801) $4,680,226
 Investment securities held to maturity       
 
Obligations of state and political subdivisions (municipal securities)

$1,145,843
 $3,868
 $(12,036) $1,137,675
 Residential mortgage-related securities       
 FNMA / FHLMC37,697
 439
 (693) 37,443
 GNMA89,996
 216
 (656) 89,556
 Total investment securities held to maturity$1,273,536
 $4,523
 $(13,385) $1,264,674
 December 31, 2016Amortized
Cost
 Gross
Unrealized
Gains
 Gross
Unrealized
Losses
 Fair Value
 
 
  ($ in Thousands)
 Investment securities available for sale:       
 U. S. Treasury securities$1,000
 $
 $
 $1,000
 Residential mortgage-related securities:       
 FNMA / FHLMC625,234
 17,298
 (2,602) 639,930
 GNMA2,028,301
 1,372
 (25,198) 2,004,475
 Private-label1,134
 1
 (14) 1,121
 GNMA commercial mortgage-related securities2,064,508
 356
 (35,966) 2,028,898
 Other securities (debt and equity)4,718
 105
 (21) 4,802
 Total investment securities available for sale$4,724,895
 $19,132
 $(63,801) $4,680,226
 Investment securities held to maturity:       
 Municipal securities$1,145,843
 $3,868
 $(12,036) $1,137,675
 Residential mortgage-related securities:       
 FNMA / FHLMC37,697
 439
 (693) 37,443
 GNMA89,996
 216
 (656) 89,556
 Total investment securities held to maturity$1,273,536
 $4,523
 $(13,385) $1,264,674



The amortized cost and fair values of investment securities available for sale and held to maturity at March 31,September 30, 2017, are shown below. Expected maturities will differ from contractual maturities because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.
 Available for Sale Held to Maturity
 
Amortized
Cost
 
Fair
Value
 
Amortized
Cost
 
Fair
Value
 ($ in Thousands)
Due in one year or less$1,000
 $1,000
 $54,259
 $48,123
Due after one year through five years4,703
 4,675
 222,037
 227,978
Due after five years through ten years
 
 281,559
 284,789
Due after ten years
 
 634,435
 642,067
Total debt securities5,703
 5,675
 1,192,290
 1,202,957
Residential mortgage-related securities       
FNMA / FHLMC494,041
 505,261
 42,386
 42,446
GNMA1,681,380
 1,667,836
 444,196
 445,293
Private-label1,083
 1,072
 
 
GNMA commercial mortgage-related securities1,539,169
 1,513,077
 554,707
 553,149
Asset backed securities108,590
 108,628
 
 
Equity securities18
 150
 
 
Total investment securities$3,829,984
 $3,801,699
 $2,233,579
 $2,243,845
Ratio of Fair Value to Amortized Cost  99.3%   100.5%
 Available for Sale Held to Maturity
($ in Thousands)
Amortized
Cost
 
Fair
Value
 
Amortized
Cost
 
Fair
Value
Due in one year or less$3,500
 $3,489
 $41,148
 $32,101
Due after one year through five years2,204
 2,205
 252,007
 259,468
Due after five years through ten years
 
 248,861
 250,081
Due after ten years
 
 589,510
 587,547
Total debt securities5,704
 5,694
 1,131,526
 1,129,197
Residential mortgage-related securities:       
FNMA / FHLMC575,826
 590,419
 38,829
 38,505
GNMA2,063,054
 2,039,826
 88,256
 87,640
Private-label1,118
 1,102
 
 
GNMA commercial mortgage-related securities1,696,287
 1,663,337
 296,232
 294,980
Equity securities18
 112
 
 
Total investment securities$4,342,007
 $4,300,490
 $1,554,843
 $1,550,322
Ratio of Fair Value to Amortized Cost  99.0%   99.7%

During the first quarter ofnine months ended September 30, 2017, the Corporation reclassified approximately $300 million$1 billion of GNMA residential mortgage-related securities and GNMA commercial mortgage-related securities from available for sale to held to maturity. The GNMA residential and commercial mortgage-related securities are principally securities with a CRA component in the underlying collateral. The reclassification of these investment securities was accounted for at fair value. Management elected to transfer these investment securities as the Corporation has the positive intent and ability to hold these investment securities to maturity. Management expects to continue transferring
In the third quarter of 2017, the Corporation purchased approximately $109 million of asset backed securities collateralized with government guaranteed student loans.
The proceeds from the sale of investment securities from available for sale tothe first nine months ended September 30, 2017 and 2016 are shown below.
 Nine Months Ended September 30,
 2017 2016
 ($ in Thousands)
Gross gains on available for sale securities$
 $6,403
Gross gains on held to maturity securities364
 
Total gains364
 6,403
Gross losses on available for sale securities
 (202)
Gross losses on held to maturity securities(5) 
Total losses(5) (202)
Investment securities gains, net$359
 $6,201
Proceeds from sales of investment securities$16,059
 $359,591

During the first nine months of 2017, the Corporation sold approximately $16 million of municipal securities classified as held to maturity throughout 2017.
 Three Months Ended March 31,
 2017 2016
 ($ in Thousands)
Gross gains$
 $3,287
Gross losses
 (189)
Investment securities gains, net$
 $3,098
Proceeds from sales of investment securities$
 $119,379
due to significant credit concerns and negative actions taken by credit rating agencies, primarily as a result of budgetary pressures in the State of Illinois. These sales resulted in a net gain of approximately $359,000.
Investment securities with a carrying value of approximately $2.1$2.9 billion and $1.8 billion at March 31,September 30, 2017, and December 31, 2016, respectively, were pledged to secure certain deposits or for other purposes as required or permitted by law.



The following represents gross unrealized losses and the related fair value of investment securities available for sale and held to maturity, aggregated by investment category and length of time individual securities have been in a continuous unrealized loss position, at March 31,September 30, 2017.
 Less than 12 months 12 months or more Total
September 30, 2017
Number
of
Securities
 
Unrealized
Losses
 
Fair
Value
 
Number
of
Securities
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 ($ in Thousands)
Investment securities available for sale               
U.S. Treasury securities1
 $(2) $1,001
 
 $
 $
 $(2) $1,001
Residential mortgage-related securities               
FNMA / FHLMC16
 (1,254) 177,782
 2
 (306) 33,842
 (1,560) 211,624
GNMA22
 (9,455) 687,814
 14
 (6,593) 378,457
 (16,048) 1,066,271
Private-label
 
 
 1
 (11) 1,072
 (11) 1,072
GNMA commercial mortgage-related securities42
 (4,962) 551,833
 56
 (21,203) 891,178
 (26,165) 1,443,011
Asset backed securities5
 (25) 52,851
 
 
 
 (25) 52,851
Other securities (debt and equity)1
 (26) 174
 
 
 
 (26) 174
Total87
 $(15,724) $1,471,455
 73
 $(28,113) $1,304,549
 $(43,837) $2,776,004
Investment securities held to maturity               
Obligations of state and political subdivisions (municipal securities)

195
 $(1,195) $138,178
 108
 $(2,663) $94,432
 $(3,858) $232,610
Residential mortgage-related securities               
FNMA / FHLMC12
 (124) 17,816
 4
 (280) 9,910
 (404) 27,726
GNMA29
 (1,628) 223,379
 7
 (987) 67,981
 (2,615) 291,360
GNMA commercial mortgage-related securities5
 (841) 94,758
 19
 (10,967) 427,161
 (11,808) 521,919
Total241
 $(3,788) $474,131
 138
 $(14,897) $599,484
 $(18,685) $1,073,615
 Less than 12 months 12 months or more Total
March 31, 2017
Number
of
Securities
 
Unrealized
Losses
 
Fair
Value
 
Number
of
Securities
 
Unrealized
Losses
 
Fair
Value
 
Unrealized
Losses
 
Fair
Value
 ($ in Thousands)
Investment securities available for sale:               
Residential mortgage-related securities:               
FNMA / FHLMC13
 $(1,117) $216,103
 
 $
 $
 $(1,117) $216,103
GNMA56
 (25,065) 1,638,688
 
 
 
 (25,065) 1,638,688
Private-label
 
 
 1
 (16) 1,100
 (16) 1,100
GNMA commercial mortgage-related securities73
 (15,538) 1,214,494
 19
 (17,557) 368,724
 (33,095) 1,583,218
Other securities (debt and equity)3
 (11) 1,489
 
 
 
 (11) 1,489
Total145
 $(41,731) $3,070,774
 20
 $(17,573) $369,824
 $(59,304) $3,440,598
Investment securities held to maturity:               
Municipal securities538
 $(9,407) $342,534
 4
 $(72) $1,778
 $(9,479) $344,312
Residential mortgage-related securities:               
FNMA / FHLMC16
 (480) 19,969
 1
 (247) 5,785
 (727) 25,754
GNMA38
 (762) 62,494
 
 
 
 (762) 62,494
GNMA commercial mortgage-related securities9
 (4,369) 255,424
 2
 (1,888) 39,556
 (6,257) 294,980
Total601
 $(15,018) $680,421
 7
 $(2,207) $47,119
 $(17,225) $727,540

For comparative purposes, the following represents gross unrealized losses and the related fair value of investment securities available for sale and held to maturity, aggregated by investment category and length of time that individual securities have been in a continuous unrealized loss position, at December 31, 2016.
 Less than 12 months 12 months or more Total
December 31, 2016Number
of
Securities
 Unrealized
Losses
 Fair
Value
 Number
of
Securities
 Unrealized
Losses
 Fair
Value
 Unrealized
Losses
 Fair
Value
 ($ in Thousands)
Investment securities available for sale               
Residential mortgage-related securities               
FNMA / FHLMC14
 $(2,602) $244,252
 
 $
 $
 $(2,602) $244,252
GNMA54
 (25,198) 1,723,523
 
 
 
 (25,198) 1,723,523
Private-label
 
 
 1
 (14) 1,119
 (14) 1,119
GNMA commercial mortgage-related securities74
 (16,445) 1,427,889
 21
 (19,521) 429,258
 (35,966) 1,857,147
Other securities (debt and equity)3
 (21) 1,479
 
 
 
 (21) 1,479
Total145
 $(44,266) $3,397,143
 22
 $(19,535) $430,377
 $(63,801) $3,827,520
Investment securities held to maturity               
Obligations of state and political subdivisions (municipal securities)

700
 $(11,937) $414,186
 4
 $(99) $1,752
 $(12,036) $415,938
Residential mortgage-related securities               
FNMA / FHLMC14
 (441) 17,477
 1
 (252) 6,031
 (693) 23,508
GNMA39
 (656) 64,633
 
 
 
 (656) 64,633
Total753
 $(13,034) $496,296
 5
 $(351) $7,783
 $(13,385) $504,079
 Less than 12 months 12 months or more Total
December 31, 2016Number
of
Securities
 Unrealized
Losses
 Fair
Value
 Number
of
Securities
 Unrealized
Losses
 Fair
Value
 Unrealized
Losses
 Fair
Value
 ($ in Thousands)
Investment securities available for sale:               
Residential mortgage-related securities:               
FNMA / FHLMC14
 $(2,602) $244,252
 
 $
 $
 $(2,602) $244,252
GNMA54
 (25,198) 1,723,523
 
 
 
 (25,198) 1,723,523
Private-label
 
 
 1
 (14) 1,119
 (14) 1,119
GNMA commercial mortgage-related securities74
 (16,445) 1,427,889
 21
 (19,521) 429,258
 (35,966) 1,857,147
Other securities (debt and equity)3
 (21) 1,479
 
 
 
 (21) 1,479
Total145
 $(44,266) $3,397,143
 22
 $(19,535) $430,377
 $(63,801) $3,827,520
Investment securities held to maturity:               
Municipal securities700
 $(11,937) $414,186
 4
 $(99) $1,752
 $(12,036) $415,938
Residential mortgage-related securities:               
FNMA / FHLMC14
 (441) 17,477
 1
 (252) 6,031
 (693) 23,508
GNMA39
 (656) 64,633
 
 
 
 (656) 64,633
Total753
 $(13,034) $496,296
 5
 $(351) $7,783
 $(13,385) $504,079

The Corporation reviews the investment securities portfolio on a quarterly basis to monitor its exposure to other-than-temporary impairment. A determination as to whether a security’s decline in fair value is other-than-temporary takes into consideration numerous factors and the relative significance of any single factor can vary by security. Some factors the Corporation may consider


in the other-than-temporary impairment analysis include, the length of time and extent to which the security has been in an unrealized loss position, changes in security ratings, financial condition and near-term prospects of the issuer, as well as security and industry specific economic conditions.


Based on the Corporation’s evaluation, management does not believe any unrealized loss at March 31,September 30, 2017, represents an other-than-temporary impairment as these unrealized losses are primarily attributable to changes in interest rates and the current market conditions, and not credit deterioration. The unrealized losses reported for municipal securities relate to various state and local political subdivisions and school districts. The Corporation currently does not intend to sell nor does it believe that it will be required to sell the securities contained in the above unrealized losses table before recovery of their amortized cost basis.
Federal Home Loan Bank (“FHLB”) and Federal Reserve Bank stocks: The Corporation is required to maintain Federal Reserve stock and FHLB stock as a member of both the Federal Reserve System and the FHLB, and in amounts as required by these institutions. These equity securities are “restricted” in that they can only be sold back to the respective institutions or another member institution at par. Therefore, they are less liquid than other marketable equity securities and their fair value is equal to amortized cost. At March 31,September 30, 2017, and December 31, 2016, the Corporation had FHLB stock of $64$97 million and $65 million, respectively. The Corporation had Federal Reserve Bank stock of $76 million and $75 million at both March 31,September 30, 2017 and December 31, 2016, respectively.
Note 7 Loans
The period end loan composition was as follows.
 September 30,
2017
 December 31,
2016
 ($ in Thousands)
Commercial and industrial$6,534,660
 $6,489,014
Commercial real estate — owner occupied827,064
 897,724
Commercial and business lending7,361,724
 7,386,738
Commercial real estate — investor3,345,536
 3,574,732
Real estate construction1,552,135
 1,432,497
Commercial real estate lending4,897,671
 5,007,229
Total commercial12,259,395
 12,393,967
Residential mortgage7,408,471
 6,332,327
Home equity890,130
 934,443
Other consumer373,464
 393,979
Total consumer8,672,065
 7,660,749
Total loans$20,931,460
 $20,054,716

 March 31,
2017
 December 31,
2016
 ($ in Thousands)
Commercial and industrial$6,300,646
 $6,489,014
Commercial real estate — owner occupied878,391
 897,724
Commercial and business lending7,179,037
 7,386,738
Commercial real estate — investor3,415,355
 3,574,732
Real estate construction1,553,205
 1,432,497
Commercial real estate lending4,968,560
 5,007,229
Total commercial12,147,597
 12,393,967
Residential mortgage6,715,282
 6,332,327
Home equity911,969
 934,443
Other consumer372,835
 393,979
Total consumer8,000,086
 7,660,749
Total loans$20,147,683
 $20,054,716
The following table presents commercial and consumer loans by credit quality indicator at March 31,September 30, 2017.
Pass Special Mention Potential Problem Nonaccrual TotalPass Special Mention Potential Problem Nonaccrual Total
($ in Thousands)($ in Thousands)
Commercial and industrial$5,816,591
 $100,234
 $218,930
 $164,891
 $6,300,646
$6,101,491
 $157,106
 $153,779
 $122,284
 $6,534,660
Commercial real estate - owner occupied793,177
 8,295
 58,994
 17,925
 878,391
742,257
 11,741
 57,468
 15,598
 827,064
Commercial and business lending6,609,768
 108,529
 277,924
 182,816
 7,179,037
6,843,748
 168,847
 211,247
 137,882
 7,361,724
Commercial real estate - investor3,336,105
 21,760
 49,217
 8,273
 3,415,355
3,284,497
 10,726
 46,770
 3,543
 3,345,536
Real estate construction1,541,779
 38
 10,141
 1,247
 1,553,205
1,550,462
 15
 118
 1,540
 1,552,135
Commercial real estate lending4,877,884
 21,798
 59,358
 9,520
 4,968,560
4,834,959
 10,741
 46,888
 5,083
 4,897,671
Total commercial11,487,652
 130,327
 337,282
 192,336
 12,147,597
11,678,707
 179,588
 258,135
 142,965
 12,259,395
Residential mortgage6,658,070
 874
 2,155
 54,183
 6,715,282
7,352,286
 881
 650
 54,654
 7,408,471
Home equity897,452
 1,085
 220
 13,212
 911,969
876,003
 1,364
 124
 12,639
 890,130
Other consumer372,064
 511
 
 260
 372,835
372,638
 567
 
 259
 373,464
Total consumer7,927,586
 2,470
 2,375
 67,655
 8,000,086
8,600,927
 2,812
 774
 67,552
 8,672,065
Total$19,415,238
 $132,797
 $339,657
 $259,991
 $20,147,683
$20,279,634
 $182,400
 $258,909
 $210,517
 $20,931,460



The following table presents commercial and consumer loans by credit quality indicator at December 31, 2016.
 Pass Special Mention Potential Problem Nonaccrual Total
 ($ in Thousands)
Commercial and industrial$5,937,119
 $141,328
 $227,196
 $183,371
 $6,489,014
Commercial real estate - owner occupied805,871
 17,785
 64,524
 9,544
 897,724
Commercial and business lending6,742,990
 159,113
 291,720
 192,915
 7,386,738
Commercial real estate - investor3,491,217
 14,236
 51,228
 18,051
 3,574,732
Real estate construction1,429,083
 105
 2,465
 844
 1,432,497
Commercial real estate lending4,920,300
 14,341
 53,693
 18,895
 5,007,229
Total commercial11,663,290
 173,454
 345,413
 211,810
 12,393,967
Residential mortgage6,275,162
 1,314
 5,615
 50,236
 6,332,327
Home equity919,740
 1,588
 114
 13,001
 934,443
Other consumer393,161
 562
 
 256
 393,979
Total consumer7,588,063
 3,464
 5,729
 63,493
 7,660,749
Total$19,251,353
 $176,918
 $351,142
 $275,303
 $20,054,716

Factors that are important to managing overall credit quality are sound loan underwriting and administration, systematic monitoring of existing loans and commitments, effective loan review on an ongoing basis, early identification of potential problems, and appropriate allowance for loan losses, allowance for unfunded commitments, nonaccrual, and charge off policies.
For commercial loans, management has determined the pass credit quality indicator to include credits that exhibit acceptable financial statements, cash flow, and leverage. If any risk exists, it is mitigated by the loan structure, collateral, monitoring, or control. For consumer loans, performing loans include credits that are performing in accordance with the original contractual terms. Loans are considered past due if the required principal and interest payments have not been received as of the date such payments were due. Special mention credits have potential weaknesses that deserve management’s attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the credit. Potential problem loans are considered inadequately protected by the current net worth and paying capacity of the obligor or the collateral pledged. These loans generally have a well-defined weakness, or weaknesses, that may jeopardize liquidation of the debt and are characterized by the distinct possibility that the Corporation will sustain some loss if the deficiencies are not corrected. Lastly, management considers a loan to be impaired when it is probable that the Corporation will be unable to collect all amounts due according to the original contractual terms of the note agreement, including both principal and interest. Management has determined that commercial and consumer loan relationships that have nonaccrual status or have had their terms restructured in a troubled debt restructuring meet this impaired loan definition. Commercial loans classified as special mention, potential problem, and nonaccrual are reviewed at a minimum on a quarterly basis, while pass and performing rated credits are reviewed on an annual basis or more frequently if the loan renewal is less than one year or if otherwise warranted.
The following table presents loans by past due status at March 31,September 30, 2017.
Current 
30-59 Days
Past Due
 
60-89 Days
Past Due
 
90 Days or
More
Past Due (a)
 
Nonaccrual (b)
 TotalCurrent 
30-59 Days
Past Due
 
60-89 Days
Past Due
 
90 Days or
More
Past Due(a)
 
Nonaccrual(b)
 Total
($ in Thousands)($ in Thousands)
Commercial and industrial$6,133,822
 $752
 $923
 $258
 $164,891
 $6,300,646
$6,410,690
 $1,254
 $124
 $308
 $122,284
 $6,534,660
Commercial real estate - owner occupied859,496
 500
 470
 
 17,925
 878,391
809,944
 1,522
 
 
 15,598
 827,064
Commercial and business lending6,993,318
 1,252
 1,393
 258
 182,816
 7,179,037
7,220,634
 2,776
 124
 308
 137,882
 7,361,724
Commercial real estate - investor3,405,960
 920
 202
 
 8,273
 3,415,355
3,340,884
 1,109
 
 
 3,543
 3,345,536
Real estate construction1,551,527
 393
 38
 
 1,247
 1,553,205
1,549,895
 685
 15
 
 1,540
 1,552,135
Commercial real estate lending4,957,487
 1,313
 240
 
 9,520
 4,968,560
4,890,779
 1,794
 15
 
 5,083
 4,897,671
Total commercial11,950,805
 2,565
 1,633
 258
 192,336
 12,147,597
12,111,413
 4,570
 139
 308
 142,965
 12,259,395
Residential mortgage6,653,856
 4,238
 3,005
 
 54,183
 6,715,282
7,344,947
 8,327
 543
 
 54,654
 7,408,471
Home equity894,245
 3,406
 1,106
 
 13,212
 911,969
870,300
 5,852
 1,339
 
 12,639
 890,130
Other consumer369,455
 1,013
 645
 1,462
 260
 372,835
370,216
 987
 699
 1,303
 259
 373,464
Total consumer7,917,556
 8,657
 4,756
 1,462
 67,655
 8,000,086
8,585,463
 15,166
 2,581
 1,303
 67,552
 8,672,065
Total$19,868,361
 $11,222
 $6,389
 $1,720
 $259,991
 $20,147,683
$20,696,876
 $19,736
 $2,720
 $1,611
 $210,517
 $20,931,460
(a)The recorded investment in loans past due 90 days or more and still accruing totaled $2 million at March 31,September 30, 2017 (the same as the reported balances for the accruing loans noted above).
(b)
Of the total nonaccrual loans, $194156 million or 75%74% were current with respect to payment at March 31,September 30, 2017.



The following table presents loans by past due status at December 31, 2016.
Current 
30-59 Days
Past Due
 
60-89 Days
Past Due
 
90 Days or
More
Past Due (a)
 
Nonaccrual (b)
 TotalCurrent 
30-59 Days
Past Due
 
60-89 Days
Past Due
 
90 Days or
More
Past Due(a)
 
Nonaccrual(b)
 Total
($ in Thousands)($ in Thousands)
Commercial and industrial$6,303,994
 $965
 $448
 $236
 $183,371
 $6,489,014
$6,303,994
 $965
 $448
 $236
 $183,371
 $6,489,014
Commercial real estate - owner occupied886,796
 968
 416
 
 9,544
 897,724
886,796
 968
 416
 
 9,544
 897,724
Commercial and business lending7,190,790
 1,933
 864
 236
 192,915
 7,386,738
7,190,790
 1,933
 864
 236
 192,915
 7,386,738
Commercial real estate - investor3,555,750
 431
 500
 
 18,051
 3,574,732
3,555,750
 431
 500
 
 18,051
 3,574,732
Real estate construction1,431,284
 264
 105
 
 844
 1,432,497
1,431,284
 264
 105
 
 844
 1,432,497
Commercial real estate lending4,987,034
 695
 605
 
 18,895
 5,007,229
4,987,034
 695
 605
 
 18,895
 5,007,229
Total commercial12,177,824
 2,628
 1,469
 236
 211,810
 12,393,967
12,177,824
 2,628
 1,469
 236
 211,810
 12,393,967
Residential mortgage6,273,949
 7,298
 844
 
 50,236
 6,332,327
6,273,949
 7,298
 844
 
 50,236
 6,332,327
Home equity915,593
 4,265
 1,584
 
 13,001
 934,443
915,593
 4,265
 1,584
 
 13,001
 934,443
Other consumer389,157
 2,471
 718
 1,377
 256
 393,979
389,157
 2,471
 718
 1,377
 256
 393,979
Total consumer7,578,699
 14,034
 3,146
 1,377
 63,493
 7,660,749
7,578,699
 14,034
 3,146
 1,377
 63,493
 7,660,749
Total$19,756,523
 $16,662
 $4,615
 $1,613
 $275,303
 $20,054,716
$19,756,523
 $16,662
 $4,615
 $1,613
 $275,303
 $20,054,716
(a)The recorded investment in loans past due 90 days or more and still accruing totaled $2 million at December 31, 2016 (the same as the reported balances for the accruing loans noted above).
(b)
Of the total nonaccrual loans, $224 million or 81% were current with respect to payment at December 31, 2016.



The following table presents impaired loans individually evaluated under ASC Topic 310 at March 31,September 30, 2017.
Recorded
Investment
 Unpaid
Principal
Balance
 Related
Allowance
 Average
Recorded
Investment
 Interest
Income
Recognized
Recorded
Investment
 Unpaid
Principal
Balance
 Related
Allowance
 Average
Recorded
Investment
 Interest
Income
Recognized
($ in Thousands)($ in Thousands)
Loans with a related allowance                  
Commercial and industrial$124,408
 $135,061
 $26,686
 $130,361
 $305
$67,226
 $72,343
 $11,540
 $76,082
 $1,050
Commercial real estate — owner occupied14,918
 16,833
 1,766
 15,045
 113
12,255
 12,374
 1,549
 12,032
 192
Commercial and business lending139,326
 151,894
 28,452
 145,406
 418
79,481
 84,717
 13,089
 88,114
 1,242
Commercial real estate — investor16,018
 16,497
 319
 16,060
 371
16,974
 16,988
 1,812
 16,992
 1,224
Real estate construction1,349
 1,663
 533
 1,369
 32
476
 586
 75
 489
 22
Commercial real estate lending17,367
 18,160
 852
 17,429
 403
17,450
 17,574
 1,887
 17,481
 1,246
Total commercial156,693
 170,054
 29,304
 162,835
 821
96,931
 102,291
 14,976
 105,595
 2,488
Residential mortgage66,221
 71,013
 11,860
 66,495
 588
42,684
 45,028
 6,893
 43,090
 1,258
Home equity20,775
 22,958
 9,528
 20,964
 250
10,351
 11,283
 3,684
 10,537
 411
Other consumer1,301
 1,327
 192
 1,309
 6
1,092
 1,093
 118
 1,095
 1
Total consumer88,297
 95,298
 21,580
 88,768
 844
54,127
 57,404
 10,695
 54,722
 1,670
Total loans(a)
$244,990
 $265,352
 $50,884
 $251,603
 $1,665
$151,058
 $159,695
 $25,671
 $160,317
 $4,158
Loans with no related allowance                  
Commercial and industrial$71,335
 $75,212
 $
 $73,314
 $93
$86,802
 $99,480
 $
 $100,398
 $927
Commercial real estate — owner occupied8,539
 9,409
 
 8,582
 
6,871
 7,716
 
 7,016
 
Commercial and business lending79,874
 84,621
 
 81,896
 93
93,673
 107,196
 
 107,414
 927
Commercial real estate — investor6,818
 7,219
 
 6,853
 
589
 732
 
 606
 
Real estate construction225
 225
 
 225
 
213
 218
 
 220
 
Commercial real estate lending7,043
 7,444
 
 7,078
 
802
 950
 
 826
 
Total commercial86,917
 92,065
 
 88,974
 93
94,475
 108,146
 
 108,240
 927
Residential mortgage6,497
 7,521
 
 6,507
 68
6,469
 7,074
 
 6,492
 105
Home equity646
 650
 
 647
 
540
 543
 
 540
 
Other consumer
 
 
 
 

 
 
 
 
Total consumer7,143
 8,171
 
 7,154
 68
7,009
 7,617
 
 7,032
 105
Total loans(a)
$94,060
 $100,236
 $
 $96,128
 $161
$101,484
 $115,763
 $
 $115,272
 $1,032
Total                  
Commercial and industrial$195,743
 $210,273
 $26,686
 $203,675
 $398
$154,028
 $171,823
 $11,540
 $176,480
 $1,977
Commercial real estate — owner occupied23,457
 26,242
 1,766
 23,627
 113
19,126
 20,090
 1,549
 19,048
 192
Commercial and business lending219,200
 236,515
 28,452
 227,302
 511
173,154
 191,913
 13,089
 195,528
 2,169
Commercial real estate — investor22,836
 23,716
 319
 22,913
 371
17,563
 17,720
 1,812
 17,598
 1,224
Real estate construction1,574
 1,888
 533
 1,594
 32
689
 804
 75
 709
 22
Commercial real estate lending24,410
 25,604
 852
 24,507
 403
18,252
 18,524
 1,887
 18,307
 1,246
Total commercial243,610
 262,119
 29,304
 251,809
 914
191,406
 210,437
 14,976
 213,835
 3,415
Residential mortgage72,718
 78,534
 11,860
 73,002
 656
49,153
 52,102
 6,893
 49,582
 1,363
Home equity21,421
 23,608
 9,528
 21,611
 250
10,891
 11,826
 3,684
 11,077
 411
Other consumer1,301
 1,327
 192
 1,309
 6
1,092
 1,093
 118
 1,095
 1
Total consumer95,440
 103,469
 21,580
 95,922
 912
61,136
 65,021
 10,695
 61,754
 1,775
Total loans(a)
$339,050
 $365,588
 $50,884
 $347,731
 $1,826
$252,542
 $275,458
 $25,671
 $275,589
 $5,190
(a)The net recorded investment (defined as recorded investment, net of the related allowance) of the impaired loans represented 79%82% of the unpaid principal balance at March 31,September 30, 2017.



The following table presents impaired loans individually evaluated under ASC Topic 310 at December 31, 2016
Recorded
Investment
 
Unpaid
Principal
Balance
 
Related
Allowance
 
Average
Recorded
Investment
 
Interest
Income
Recognized
Recorded
Investment
 
Unpaid
Principal
Balance
 
Related
Allowance
 
Average
Recorded
Investment
 
Interest
Income
Recognized
($ in Thousands)($ in Thousands)
Loans with a related allowance                  
Commercial and industrial$101,770
 $107,813
 $21,617
 $111,211
 $2,512
$99,786
 $105,175
 $21,047
 $104,808
 $2,345
Commercial real estate — owner occupied6,595
 8,641
 295
 7,111
 274
5,544
 5,568
 23
 5,840
 263
Commercial and business lending108,365
 116,454
 21,912
 118,322
 2,786
105,330
 110,743
 21,070
 110,648
 2,608
Commercial real estate — investor27,196
 27,677
 3,541
 31,142
 2,124
26,764
 27,031
 3,410
 30,665
 2,120
Real estate construction1,203
 1,566
 441
 1,321
 67
509
 648
 84
 529
 31
Commercial real estate lending28,399
 29,243
 3,982
 32,463
 2,191
27,273
 27,679
 3,494
 31,194
 2,151
Total commercial136,764
 145,697
 25,894
 150,785
 4,977
132,603
 138,422
 24,564
 141,842
 4,759
Residential mortgage62,362
 67,090
 11,091
 63,825
 2,263
37,902
 39,979
 6,438
 38,608
 1,551
Home equity20,651
 22,805
 9,312
 21,825
 1,114
11,070
 11,909
 3,943
 11,420
 627
Other consumer1,235
 1,284
 186
 1,294
 29
1,012
 1,023
 109
 1,021
 2
Total consumer84,248
 91,179
 20,589
 86,944
 3,406
49,984
 52,911
 10,490
 51,049
 2,180
Total loans(a)
$221,012
 $236,876
 $46,483
 $237,729
 $8,383
$182,587
 $191,333
 $35,054
 $192,891
 $6,939
Loans with no related allowance                  
Commercial and industrial$113,485
 $134,863
 $
 $117,980
 $1,519
$113,485
 $134,863
 $
 $117,980
 $1,519
Commercial real estate — owner occupied8,439
 9,266
 
 8,759
 138
8,439
 9,266
 
 8,759
 138
Commercial and business lending121,924
 144,129
 
 126,739
 1,657
121,924
 144,129
 
 126,739
 1,657
Commercial real estate — investor6,144
 6,478
 
 7,092
 
6,144
 6,478
 
 7,092
 
Real estate construction
 
 
 
 

 
 
 
 
Commercial real estate lending6,144
 6,478
 
 7,092
 
6,144
 6,478
 
 7,092
 
Total commercial128,068
 150,607
 
 133,831
 1,657
128,068
 150,607
 
 133,831
 1,657
Residential mortgage5,974
 6,998
 
 6,610
 184
5,974
 6,998
 
 6,610
 184
Home equity106
 107
 
 107
 4
106
 107
 
 107
 4
Other consumer
 
 
 
 

 
 
 
 
Total consumer6,080
 7,105
 
 6,717
 188
6,080
 7,105
 
 6,717
 188
Total loans(a)
$134,148
 $157,712
 $
 $140,548
 $1,845
$134,148
 $157,712
 $
 $140,548
 $1,845
Total                  
Commercial and industrial$215,255
 $242,676
 $21,617
 $229,191
 $4,031
$213,271
 $240,038
 $21,047
 $222,788
 $3,864
Commercial real estate — owner occupied15,034
 17,907
 295
 15,870
 412
13,983
 14,834
 23
 14,599
 401
Commercial and business lending230,289
 260,583
 21,912
 245,061
 4,443
227,254
 254,872
 21,070
 237,387
 4,265
Commercial real estate — investor33,340
 34,155
 3,541
 38,234
 2,124
32,908
 33,509
 3,410
 37,757
 2,120
Real estate construction1,203
 1,566
 441
 1,321
 67
509
 648
 84
 529
 31
Commercial real estate lending34,543
 35,721
 3,982
 39,555
 2,191
33,417
 34,157
 3,494
 38,286
 2,151
Total commercial264,832
 296,304
 25,894
 284,616
 6,634
260,671
 289,029
 24,564
 275,673
 6,416
Residential mortgage68,336
 74,088
 11,091
 70,435
 2,447
43,876
 46,977
 6,438
 45,218
 1,735
Home equity20,757
 22,912
 9,312
 21,932
 1,118
11,176
 12,016
 3,943
 11,527
 631
Other consumer1,235
 1,284
 186
 1,294
 29
1,012
 1,023
 109
 1,021
 2
Total consumer90,328
 98,284
 20,589
 93,661
 3,594
56,064
 60,016
 10,490
 57,766
 2,368
Total loans(a)
$355,160
 $394,588
 $46,483
 $378,277
 $10,228
$316,735
 $349,045
 $35,054
 $333,439
 $8,784
(a)The net recorded investment (defined as recorded investment, net of the related allowance) of the impaired loans represented 78%81% of the unpaid principal balance at December 31, 2016.



Troubled Debt Restructurings (“Restructured Loans”)
Loans are considered restructured loans if concessions have been granted to borrowers that are experiencing financial difficulty. The Corporation had a recorded investment of approximately $55$17 million in loans modified in troubled debt restructurings for the threenine months ended March 31,September 30, 2017, of which approximately $1$6 million waswere in accrual status and $54$11 million waswere in nonaccrual pending a sustained period of repayment. At March 31, 2017 the commercial and industrial nonaccrual restructured loans increased primarily due to the restructuring of several large oil and gas loans. These loans were included in nonaccrual loans at both March 31, 2017 and December 31, 2016. The following table presents nonaccrual and performing restructured loans by loan portfolio.
 September 30, 2017 December 31, 2016
 
Performing
Restructured
Loans
 
Nonaccrual
Restructured
Loans(a)
 
Performing
Restructured
Loans
 
Nonaccrual
Restructured
Loans(a)
 ($ in Thousands)
Commercial and industrial$32,572
 $7,994
 $31,884
 $1,276
Commercial real estate — owner occupied4,077
 2,145
 5,490
 2,220
Commercial real estate — investor14,294
 589
 15,289
 924
Real estate construction316
 160
 359
 150
Residential mortgage16,859
 20,248
 18,100
 21,906
Home equity7,987
 2,364
 7,756
 2,877
Other consumer1,073
 20
 979
 32
   Total$77,178
 $33,520
 $79,857
 $29,385
 March 31, 2017 December 31, 2016
 
Performing
Restructured
Loans
 
Nonaccrual
Restructured
Loans(a)
 
Performing
Restructured
Loans
 
Nonaccrual
Restructured
Loans(a)
 ($ in Thousands)
Commercial and industrial$30,852
 $52,079
 $31,884
 $1,276
Commercial real estate — owner occupied5,532
 2,148
 5,490
 2,220
Commercial real estate — investor14,563
 1,643
 15,289
 924
Real estate construction327
 170
 359
 150
Residential mortgage18,535
 20,457
 18,100
 21,906
Home equity8,209
 2,379
 7,756
 2,877
Other consumer1,041
 26
 979
 32
   Total$79,059
 $78,902
 $79,857
 $29,385

(a)Nonaccrual restructured loans have been included within nonaccrual loans.

The following table provides the number of loans modified in a troubled debt restructuring by loan portfolio during the threenine months ended March 31,September 30, 2017 and 2016, respectively, and the recorded investment and unpaid principal balance as of March 31,September 30, 2017 and 2016, respectively.
 Nine Months Ended September 30, 2017 Nine Months Ended September 30, 2016
 
Number
of
Loans
 
Recorded
Investment(a)
 
Unpaid
Principal
Balance(b)
 
Number
of
Loans
 
Recorded
Investment(a)
 
Unpaid
Principal
Balance(b)
 ($ in Thousands)
Commercial and industrial19
 $11,387
 $15,898
 10
 $2,455
 $2,517
Commercial real estate — owner occupied2
 710
 710
 1
 117
 124
Real estate construction
 
 
 1
 66
 91
Residential mortgage48
 4,445
 4,638
 56
 4,676
 4,922
Home equity35
 934
 1,182
 47
 1,709
 1,793
Other consumer
 
 
 1
 15
 16
   Total104
 $17,476
 $22,428
 116
 $9,038
 $9,463
 Three Months Ended March 31, 2017 Three Months Ended March 31, 2016
 
Number
of
Loans
 
Recorded
Investment(a)
 
Unpaid
Principal
Balance(b)
 
Number
of
Loans
 
Recorded
Investment(a)
 
Unpaid
Principal
Balance(b)
 ($ in Thousands)
Commercial and industrial20
 $52,326
 $60,546
 7
 $1,483
 $1,522
Commercial real estate — owner occupied1
 204
 204
 1
 125
 130
Commercial real estate — investor1
 733
 744
 
 
 
Real estate construction
 
 
 1
 10
 55
Residential mortgage16
 1,301
 1,322
 30
 2,062
 2,124
Home equity15
 347
 347
 20
 818
 879
   Total53
 $54,911
 $63,163
 59
 $4,498
 $4,710

(a)Represents post-modification outstanding recorded investment.
(b)Represents pre-modification outstanding recorded investment.


Restructured loan modifications may include payment schedule modifications, interest rate concessions, maturity date extensions, modification of note structure (A/B Note), non-reaffirmed Chapter 7 bankruptcies, principal reduction, or some combination of these concessions. During the threenine months ended March 31,September 30, 2017, restructured loan modifications of commercial and industrial, commercial real estate, and real estate construction loans primarily included maturity date extensions and payment schedule modifications. Restructured loan modifications of home equity and residential mortgage loans primarily included maturity date extensions, interest rate concessions, non-reaffirmed Chapter 7 bankruptcies, or a combination of these concessions for the threenine months ended March 31,September 30, 2017.




The following table provides the number of loans modified in a troubled debt restructuring during the previous twelve months which subsequently defaulted during the threenine months ended March 31,September 30, 2017 and 2016, respectively, as well as the recorded investment in these restructured loans as of March 31,September 30, 2017 and 2016, respectively.
 Nine Months Ended September 30, 2017 Nine Months Ended September 30, 2016
 
Number of
Loans
 
Recorded
Investment
 
Number of
Loans
 
Recorded
Investment
 ($ in Thousands)
Commercial and industrial1
 $1
 
 $
Residential mortgage21
 1,335
 36
 3,310
Home equity14
 371
 12
 182
Other consumer
 
 1
 15
   Total36
 $1,707
 49
 $3,507
 Three Months Ended March 31, 2017 Three Month Ended March 31, 2016
 
Number of
Loans
 
Recorded
Investment
 
Number of
Loans
 
Recorded
Investment
 ($ in Thousands)
Real estate construction
 $
 1
 $10
Residential mortgage6
 383
 7
 1,151
Home equity2
 26
 8
 153
   Total8
 $409
 16
 $1,314

All loans modified in a troubled debt restructuring are evaluated for impairment. The nature and extent of the impairment of restructured loans, including those which have experienced a subsequent payment default, is considered in the determination of an appropriate level of the allowance for loan losses.
Allowance for Credit Losses
A summary of the changes in the allowance for loan losses by portfolio segment for the three months ended March 31, 2017, was as follows.
$ in Thousands
Commercial
and
industrial
 
Commercial
real estate
- owner
occupied
 
Commercial
real estate
- investor
 
Real estate
construction
 
Residential
mortgage
 
Home
equity
 
Other
consumer
 Total
December 31, 2016$140,126
 $14,034
 $45,285
 $26,932
 $27,046
 $20,364
 $4,548
 $278,335
Charge offs(9,359) (5) (633) (23) (297) (509) (1,028) (11,854)
Recoveries4,991
 24
 119
 34
 169
 682
 172
 6,191
Net charge offs(4,368) 19
 (514) 11
 (128) 173
 (856) (5,663)
Provision for loan losses10,509
 (2,841) (3,406) 1,825
 3,370
 (223) 766
 10,000
March 31, 2017$146,267
 $11,212
 $41,365
 $28,768
 $30,288
 $20,314
 $4,458
 $282,672
Allowance for loan losses:               
Individually evaluated for impairment$25,915
 $1,541
 $99
 $
 $810
 $
 $
 $28,365
Collectively evaluated for impairment120,352
 9,671
 41,266
 28,768
 29,478
 20,314
 4,458
 254,307
Total allowance for loan losses$146,267
 $11,212
 $41,365
 $28,768
 $30,288
 $20,314
 $4,458
 $282,672
Loans:               
Individually evaluated for impairment$162,788
 $17,098
 $7,615
 $225
 $11,086
 $647
 $
 $199,459
Collectively evaluated for impairment6,137,858
 861,293
 3,407,740
 1,552,980
 6,704,196
 911,322
 372,835
 19,948,224
Total loans$6,300,646
 $878,391
 $3,415,355
 $1,553,205
 $6,715,282
 $911,969
 $372,835
 $20,147,683
The allowance for credit losses is comprised of the allowance for loan losses and the allowance for unfunded commitments. The level of the allowance for loan losses represents management’s estimate of an amount appropriate to provide for probable credit losses in the loan portfolio at the balance sheet date. The allowance for unfunded commitments is maintained at a level believed by management to be sufficient to absorb estimated probable losses related to unfunded credit facilities (including unfunded loan commitments and letters of credit) and is included in accrued expenses and other liabilities on the consolidated balance sheets. See Note 12 for additional information on the allowance for unfunded commitments.
The following table presents a summary of the changes in the allowance for loan losses by portfolio segment for the nine months ended September 30, 2017.
($ in Thousands)Commercial and
industrial
Commercial real estate
- owner
occupied
Commercial real estate - 
investor
Real estate
construction
Residential
mortgage
Home
equity
Other
consumer
Total
December 31, 2016$140,126
$14,034
$45,285
$26,932
$27,046
$20,364
$4,548
$278,335
Charge offs(33,928)(83)(803)(225)(1,472)(2,208)(3,238)(41,957)
Recoveries9,072
158
218
60
754
2,348
563
13,173
Net Charge offs(24,856)75
(585)(165)(718)140
(2,675)(28,784)
Provision for loan losses23,587
(4,352)1,798
(1,340)4,632
(479)3,154
27,000
September 30, 2017$138,857
$9,757
$46,498
$25,427
$30,960
$20,025
$5,027
$276,551
Allowance for loan losses        
Individually evaluated for impairment$11,540
$1,549
$1,812
$75
$6,893
$3,684
$118
$25,671
Collectively evaluated for impairment127,317
8,208
44,686
25,352
24,067
16,341
4,909
250,880
Total allowance for loan losses$138,857
$9,757
$46,498
$25,427
$30,960
$20,025
$5,027
$276,551
Loans        
Individually evaluated for impairment$154,028
$19,126
$17,563
$689
$49,153
$10,891
$1,092
$252,542
Collectively evaluated for impairment6,380,632
807,938
3,327,973
1,551,446
7,359,318
879,239
372,372
20,678,918
Total loans$6,534,660
$827,064
$3,345,536
$1,552,135
$7,408,471
$890,130
$373,464
$20,931,460




For comparison purposes, a summary of the changes in the allowance for loan losses by portfolio segment for the year ended December 31, 2016, was as follows.
($ in Thousands)Commercial and
industrial
Commercial real estate
- owner
occupied
Commercial real estate - 
investor
Real estate
construction
Residential
mortgage
Home
equity
Other
consumer
Total
December 31, 2015$129,959
$18,680
$43,018
$25,266
$28,261
$23,555
$5,525
$274,264
Charge offs(71,016)(512)(1,504)(558)(4,332)(4,686)(3,831)(86,439)
Recoveries14,543
74
1,624
203
755
3,491
820
21,510
Net Charge offs(56,473)(438)120
(355)(3,577)(1,195)(3,011)(64,929)
Provision for loan losses66,640
(4,208)2,147
2,021
2,362
(1,996)2,034
69,000
December 31, 2016$140,126
$14,034
$45,285
$26,932
$27,046
$20,364
$4,548
$278,335
Allowance for loan losses        
Individually evaluated for impairment$21,047
$23
$3,410
$84
$6,438
$3,943
$109
$35,054
Collectively evaluated for impairment119,079
14,011
41,875
26,848
20,608
16,421
4,439
243,281
Total allowance for loan losses$140,126
$14,034
$45,285
$26,932
$27,046
$20,364
$4,548
$278,335
Loans        
Individually evaluated for impairment$213,271
$13,983
$32,908
$509
$43,876
$11,176
$1,012
$316,735
Collectively evaluated for impairment6,275,743
883,741
3,541,824
1,431,988
6,288,451
923,267
392,967
19,737,981
Total loans$6,489,014
$897,724
$3,574,732
$1,432,497
$6,332,327
$934,443
$393,979
$20,054,716

$ in Thousands
Commercial
and
industrial
 
Commercial
real estate
- owner
occupied
 
Commercial
real estate
- investor
 
Real estate
construction
 
Residential
mortgage
 
Home
equity
 
Other
consumer
 Total
December 31, 2015$129,959
 $18,680
 $43,018
 $25,266
 $28,261
 $23,555
 $5,525
 $274,264
Charge offs(71,016) (512) (1,504) (558) (4,332) (4,686) (3,831) (86,439)
Recoveries14,543
 74
 1,624
 203
 755
 3,491
 820
 21,510
Net charge offs(56,473) (438) 120
 (355) (3,577) (1,195) (3,011) (64,929)
Provision for loan losses66,640
 (4,208) 2,147
 2,021
 2,362
 (1,996) 2,034
 69,000
December 31, 2016$140,126
 $14,034
 $45,285
 $26,932
 $27,046
 $20,364
 $4,548
 $278,335
Allowance for loan losses:               
Individually evaluated for impairment$20,836
 $
 $3,117
 $
 $147
 $3
 $
 $24,103
Collectively evaluated for impairment119,290
 14,034
 42,168
 26,932
 26,899
 20,361
 4,548
 254,232
Total allowance for loan losses$140,126
 $14,034
 $45,285
 $26,932
 $27,046
 $20,364
 $4,548
 $278,335
Loans:               
Individually evaluated for impairment$180,965
 $8,439
 $17,322
 $
 $7,033
 $650
 $
 $214,409
Collectively evaluated for impairment6,308,049
 889,285
 3,557,410
 1,432,497
 6,325,294
 933,793
 393,979
 19,840,307
Total loans$6,489,014
 $897,724
 $3,574,732
 $1,432,497
 $6,332,327
 $934,443
 $393,979
 $20,054,716

AAt September 30, 2017, the oil and gas portfolio was comprised of 56 credits, totaling $577 million of outstanding balances. The allowance related to the oil and gas portfolio was $30 million at September 30, 2017 and represented 5.2% of total oil and gas loans.

($ in Millions)Nine Months Ended September 30, 2017 Year Ended December 31, 2016
Balance at beginning of period$38
 $42
Charge offs(26) (59)
Recoveries
 
Net Charge offs(26) (59)
Provision for loan losses18
 55
Balance at end of period$30
 $38
Allowance for loan losses   
Individually evaluated for impairment$2
 $14
Collectively evaluated for impairment28
 24
Total allowance for loan losses$30
 $38
Loans   
Individually evaluated for impairment$92
 $147
Collectively evaluated for impairment485
 521
Total loans$577
 $668

The following table presents a summary of the changes in the allowance for unfunded commitments was as follows.commitments.
 Nine Months Ended September 30, 2017 Year Ended December 31, 2016
 ($ in Thousands)
Allowance for Unfunded Commitments   
Balance at beginning of period$25,400
 $24,400
Provision for unfunded commitments(1,000) 1,000
Balance at end of period$24,400
 $25,400
 Three Months Ended March 31, 2017 Year Ended December 31, 2016
 ($ in Thousands)
Allowance for Unfunded Commitments:   
Balance at beginning of period$25,400
 $24,400
Provision for unfunded commitments(1,000) 1,000
Balance at end of period$24,400
 $25,400



Note 8 Goodwill and Other Intangible Assets
Goodwill
Goodwill is not amortized but, instead, is subject to impairment tests on at least an annual basis, and more frequently if an event occurs or circumstances change that would more likely than not reduce the fair value of a reporting unit below its carrying amount.
The Corporation conducted its most recent annual impairment testing in May 2016,2017, utilizing a qualitative assessment. Factors that management considered in this assessment included macroeconomic conditions, industry and market considerations, overall financial performance of the Corporation and each reporting unit (both current and projected), changes in management strategy, and changes in the composition or carrying amount of net assets. In addition, management considered the changes in both the Corporation’s common stock price and in the overall bank common stock index (based on the S&P 400 Regional Bank Sub-Industry Index), as well as the Corporation’s earnings per common share trend over the past year. Based on these assessments, management concluded that the 20162017 annual qualitative impairment assessment indicated that it is more likely than not that the estimated fair value exceeded the carrying value (including goodwill) for each reporting unit. Therefore, a step one quantitative analysis was not required. There werehave been no events since the May 20162017 impairment testing that have changed the Corporation's impairment assessment conclusion. There were no impairment charges recorded in 2016 or the first threenine months of 2017.
At both March 31,September 30, 2017 and December 31, 2016, the Corporation had goodwill of $972 million. Goodwill increased minimally by approximately $55,000 during the first quarter of 2017 as a result of a small insurance acquisition. See Note 2 for additional information on the Corporation's acquisitions.


Other Intangible Assets
The Corporation has other intangible assets that are amortized, consisting of core deposit intangibles, other intangibles (primarily related to customer relationships acquired in connection with the Corporation’s insurance agency acquisitions), and mortgage servicing rights. During the first quarter of 2017, the Corporation added approximately $162,000 of other intangibles relating to customer relationships associated with one small insurance acquisition. See Note 2 for additional information on the Corporation's acquisitions. During the fist nine months of 2017, core deposit intangibles fully amortized. For core deposit intangibles and other intangibles, changes in the gross carrying amount, accumulated amortization, and net book value were as follows.
 Nine Months Ended September 30, 2017 Year Ended December 31, 2016
 ($ in Thousands)
Core deposit intangibles   
Gross carrying amount$4,385
 $4,385
Accumulated amortization(4,385) (4,273)
Net book value$
 $112
Amortization during the year$112
 $281
Other intangibles   
Gross carrying amount$32,572
 $32,410
Accumulated amortization(18,492) (17,145)
Net book value$14,080
 $15,265
Additions during the period$162
 $1,012
Amortization during the year$1,347
 $1,812
 Three Months Ended March 31, 2017 Year Ended December 31, 2016
 ($ in Thousands)
Core deposit intangibles:   
Gross carrying amount$4,385
 $4,385
Accumulated amortization(4,340) (4,273)
Net book value$45
 $112
Amortization during the year$67
 $281
Other intangibles:   
Gross carrying amount$32,572
 $32,410
Accumulated amortization(17,591) (17,145)
Net book value$14,981
 $15,265
Additions during the period$162
 $1,012
Amortization during the year$446
 $1,812

The Corporation sells residential mortgage loans in the secondary market and typically retains the right to service the loans sold. Mortgage servicing rights are amortized in proportion to and over the period of estimated net servicing income and assessed for impairment at each reporting date.
The Corporation periodically evaluates its mortgage servicing rights asset for impairment.impairment at minimum on a quarterly basis. Impairment is assessed based on fair value at each reporting date using estimated prepayment speeds of the underlying mortgage loans serviced and stratifications based on the risk characteristics of the underlying loans (predominantly loan type and note interest rate). As mortgage interest rates fall, prepayment speeds are usually faster and the value of the mortgage servicing rights asset generally decreases, requiring additional valuation reserve. Conversely, as mortgage interest rates rise, prepayment speeds are usually slower and the value of the mortgage servicing rights asset generally increases, requiring less valuation reserve. A valuation allowance is established, through a charge to earnings, to the extent the amortized cost of the mortgage servicing rights exceeds the estimated fair value by stratification. If it is later determined that all or a portion of the temporary impairment no longer exists for a stratification, the valuation is reduced through a recovery to earnings. An other-than-temporary impairment (i.e., recoverability is considered


remote when considering interest rates and loan pay off activity) is recognized as a write-down of the mortgage servicing rights asset and the related valuation allowance (to the extent a valuation allowance is available) and then against earnings. A direct write-down permanently reduces the carrying value of the mortgage servicing rights asset and valuation allowance, precluding subsequent recoveries. See Note 12 for a discussion of the recourse provisions on sold residential mortgage loans. See Note 13 which further discusses fair value measurement relative to the mortgage servicing rights asset.


A summary of changes in the balance of the mortgage servicing rights asset and the mortgage servicing rights valuation allowance was as follows.
 Nine Months Ended September 30, 2017 Year Ended December 31, 2016
 ($ in Thousands)
Mortgage servicing rights
Mortgage servicing rights at beginning of period$62,085
 $62,150
Additions4,822
 12,262
Amortization(7,635) (12,327)
Mortgage servicing rights at end of period$59,272
 $62,085
Valuation allowance at beginning of period(609) (809)
(Additions) recoveries, net(286) 200
Valuation allowance at end of period(895) (609)
Mortgage servicing rights, net$58,377
 $61,476
Fair value of mortgage servicing rights$62,625
 $73,149
Portfolio of residential mortgage loans serviced for others (“servicing portfolio”)$7,653,458
 $7,974,742
Mortgage servicing rights, net to servicing portfolio0.76% 0.77%
Mortgage servicing rights expense (a)
$7,921
 $12,127
 Three Months Ended March 31, 2017 Year Ended December 31, 2016
 ($ in Thousands)
Mortgage servicing rights
Mortgage servicing rights at beginning of period$62,085
 $62,150
Additions1,920
 12,262
Amortization(2,477) (12,327)
Mortgage servicing rights at end of period$61,528
 $62,085
Valuation allowance at beginning of period(609) (809)
(Additions) recoveries, net(217) 200
Valuation allowance at end of period(826) (609)
Mortgage servicing rights, net$60,702
 $61,476
Fair value of mortgage servicing rights$68,037
 $73,149
Portfolio of residential mortgage loans serviced for others (“servicing portfolio”)$7,908,799
 $7,974,742
Mortgage servicing rights, net to servicing portfolio0.77% 0.77%
Mortgage servicing rights expense (a)
$2,694
 $12,127

(a)Includes the amortization of mortgage servicing rights and additions / recoveries to the valuation allowance of mortgage servicing rights, and is a component of mortgage banking, net in the consolidated statements of income.
The following table shows the estimated future amortization expense for amortizing intangible assets. The projections of amortization expense are based on existing asset balances, the current interest rate environment, and prepayment speeds as of March 31,September 30, 2017. The actual amortization expense the Corporation recognizes in any given period may be significantly different depending upon acquisition or sale activities, changes in interest rates, prepayment speeds, market conditions, regulatory requirements, and events or circumstances that indicate the carrying amount of an asset may not be recoverable.
Estimated Amortization ExpenseOther Intangibles Mortgage Servicing Rights
 ($ in Thousands)
Three Months Ended December 31, 2017$451
 $2,593
20181,771
 9,337
20191,472
 7,792
20201,355
 6,522
20211,331
 5,484
20221,308
 4,641
Beyond 20226,392
 22,903
Total Estimated Amortization Expense$14,080
 $59,272


Estimated Amortization ExpenseCore Deposit Intangibles Other Intangibles Mortgage Servicing Rights
 ($ in Thousands)
Nine months ending December 31, 2017$45
 $1,351
 $7,275
2018
 1,771
 8,389
2019
 1,472
 7,100
2020
 1,355
 6,025
2021
 1,331
 5,128
2022
 1,308
 4,385
Beyond 2022
 6,393
 23,226
Total Estimated Amortization Expense$45
 $14,981
 $61,528



Note 9 Short and Long-Term Funding
The following table presents the components of short-term funding (funding with original contractual maturities of one year or less) and long-term funding (funding with original contractual maturities greater than one year) were as follows..
 September 30, 2017 December 31, 2016
 ($ in Thousands)
Short-Term Funding   
Federal funds purchased$220,575
 $208,150
Securities sold under agreements to repurchase255,975
 300,197
Federal funds purchased and securities sold under agreements to repurchase$476,550
 $508,347
FHLB advances520,000
 482,000
Commercial paper68,067
 101,688
Other short-term funding588,067
 583,688
Total short-term funding$1,064,617
 $1,092,035
Long-Term Funding   
FHLB advances$2,650,172
 $2,265,188
Senior notes, at par250,000
 250,000
Subordinated notes, at par250,000
 250,000
Other long-term funding and capitalized costs(2,887) (3,393)
Total long-term funding3,147,285
 2,761,795
Total short and long-term funding$4,211,902
 $3,853,830
 March 31, 2017 December 31, 2016
 ($ in Thousands)
Short-Term Funding   
Federal funds purchased$323,365
 $208,150
Securities sold under agreements to repurchase326,823
 300,197
Federal funds purchased and securities sold under agreements to repurchase$650,188
 $508,347
FHLB advances309,000
 482,000
Commercial paper121,679
 101,688
Other short-term funding430,679
 583,688
Total short-term funding$1,080,867
 $1,092,035
Long-Term Funding   
FHLB advances$2,265,180
 $2,265,188
Senior notes, at par250,000
 250,000
Subordinated notes, at par250,000
 250,000
Other long-term funding and capitalized costs(3,225) (3,393)
Total long-term funding2,761,955
 2,761,795
Total short and long-term funding$3,842,822
 $3,853,830

Securities Sold Under Agreements to Repurchase ("Repurchase Agreements")
The Corporation enters into agreements under which it sells securities subject to an obligation to repurchase the same or similar securities. Under these arrangements, the Corporation may transfer legal control over the assets but still retain effective control through an agreement that both entitles and obligates the Corporation to repurchase the assets. The obligation to repurchase the securities is reflected as a liability on the Corporation’s consolidated balance sheets, while the securities underlying the repurchase agreements remain in the respective investment securities asset accounts (i.e., there is no offsetting or netting of the investment securities assets with the repurchase agreement liabilities). See Note 11 for additional disclosures on balance sheet offsetting.
The Corporation utilizes securities sold under agreements to repurchase to facilitate the needs of its customers. As of March 31,September 30, 2017, the Corporation pledged agency mortgage-related securities with a fair value of $481$391 million as collateral for the repurchase agreements. Securities pledged as collateral under repurchase agreements are maintained with the Corporation's safekeeping agents and are monitored on a daily basis due to the market risk of fair value changes in the underlying securities. The Corporation generally pledges excess securities to ensure there is sufficient collateral to satisfy short-term fluctuations in both the repurchase agreement balances and the fair value of the underlying securities.


The remaining contractual maturity of the securities sold under agreements to repurchase in the consolidated balance sheets as of March 31,September 30, 2017 and December 31, 2016 are presented in the following table.
 Remaining Contractual Maturity of the Agreements
 Overnight and Continuous Up to 30 days 30-90 days Greater than 90 days Total
September 30, 2017    ($ in Thousands)    
Repurchase agreements         
     Agency mortgage-related securities$255,975
 $
 $
 $
 $255,975
Total$255,975
 $
 $
 $
 $255,975
December 31, 2016         
Repurchase agreements         
     Agency mortgage-related securities$300,197
 $
 $
 $
 $300,197
Total$300,197
 $
 $
 $
 $300,197

 Remaining Contractual Maturity of the Agreements
March 31, 2017Overnight and ContinuousUp to 30 days30-90 daysGreater than 90 daysTotal
   ($ in Thousands)  
Repurchase agreements     
     Agency mortgage-related securities$326,823
$
$
$
$326,823
Total$326,823
$
$
$
$326,823
December 31, 2016     
Repurchase agreements     
     Agency mortgage-related securities$300,197
$
$
$
$300,197
Total$300,197
$
$
$
$300,197





Long-Term Funding


FHLB advances: At March 31,September 30, 2017, the long-term FHLB advances had a weighted average interest rate of 0.68%1.02%, compared to 0.50% at December 31, 2016. The majority of FHLB advances are indexed to the FHLB discount note and re-price at varying intervals. The advances offer flexible, low cost, long-term funding that improves the Corporation’s liquidity profile.
Senior notes: In November 2014, the Corporation issued $250 million of senior notes, due November 2019, and callable October 2019. The senior notes have a fixed coupon interest rate of 2.75% and were issued at a discount.
Subordinated notes: In November 2014, the Corporation issued $250 million of 10-year subordinated notes, due January 2025, and callable October 2024. The subordinated notes have a fixed coupon interest rate of 4.25% and were issued at a discount.
Note 10 Derivative and Hedging Activities
The Corporation facilitates customer borrowing activity by providing various interest rate risk management, commodity hedging, and foreign currency exchange solutions through its capital markets area. To date, all of the notional amounts of customer transactions have been matched with a mirror hedge with another counterparty. The Corporation has used, and may use again in the future, derivative instruments to hedge the variability in interest payments or protect the value of certain assets and liabilities recorded on its consolidated balance sheets from changes in interest rates. The predominant derivative and hedging activities include interest rate-related instruments (swaps and caps), foreign currency exchange forwards, commodity contracts, written options, purchased options, and certain mortgage banking activities.
The contract or notional amount of a derivative is used to determine, along with the other terms of the derivative, the amounts to be exchanged between the counterparties. The Corporation is exposed to credit risk in the event of nonperformance by counterparties to financial instruments. To mitigate the counterparty risk, interest rate and commodity-related instruments generally contain language outlining collateral pledging requirements for each counterparty. Collateral must be posted when the market value exceeds certain mutually agreed upon threshold limits. The Corporation was required to pledge $25pledged $26 million of investment securities as collateral at March 31,September 30, 2017, and pledged $40 million of investment securities as collateral at December 31, 2016. Federal regulations require the Corporation to clear all LIBOR interest rate swaps through a clearing house if it can be cleared. As such, the Corporation is required to pledge cash collateral for the margin. At March 31,September 30, 2017 and December 31, 2016 the Corporation posted no$3 million of cash collateral for the margin.margin compared to none at December 31, 2016.
Derivatives to Accommodate Customer Needs
The Corporation enters into various derivative contracts which are designated as free standing derivative contracts. Free standing derivative products are entered into primarily for the benefit of commercial customers seeking to manage their exposures to interest rate risk, foreign currency, and commodity prices. These derivative contracts are not designated against specific assets and liabilities on the balance sheet or forecasted transactions and, therefore, do not qualify for hedge accounting treatment. Such derivative contracts are carried at fair value on the consolidated balance sheets with changes in the fair value recorded as a component of Capital market fees, net, and typically include interest rate-related instruments (swaps and caps), foreign currency exchange forwards, and commodity contracts. See Note 11 for additional information and disclosures on balance sheet offsetting.
Interest rate-related instruments: The Corporation provides interest rate risk management services to commercial customers, primarily forward interest rate swaps and caps. The Corporation’s market risk from unfavorable movements in interest rates related to these derivative contracts is generally economically hedged by concurrently entering into offsetting derivative contracts. The offsetting derivative contracts have identical notional values, terms and indices.
Foreign currency exchange forwards: The Corporation provides foreign currency exchange services to customers, primarily forward contracts. Our customers enter into a foreign currency exchange forward with the Corporation as a means for them to mitigate exchange rate risk. The Corporation mitigates its risk by then entering into an offsetting foreign currency exchange derivative contract.
Commodity contracts: Commodity contracts are entered into primarily for the benefit of commercial customers seeking to manage their exposure to fluctuating commodity prices. The Corporation mitigates its risk by then entering into an offsetting commodity derivative contract.



The table below identifies the balance sheet category and fair values of the Corporation’s free standing derivative instruments, which are not designated as hedging instruments.
 September 30, 2017 December 31, 2016
($ in Thousands)Notional Amount 
Fair
Value
 
Balance Sheet
Category
 Notional Amount Fair
Value
 Balance Sheet
Category
Interest rate-related instruments — customer and mirror$2,198,794
 $26,837
 Trading assets $2,039,323
 $33,671
 Trading assets
Interest rate-related instruments — customer and mirror2,198,794
 (26,469) Trading liabilities 2,039,323
 (33,188) Trading liabilities
Foreign currency exchange forwards130,191
 3,053
 Trading assets 109,675
 2,002
 Trading assets
Foreign currency exchange forwards122,307
 (3,033) Trading liabilities 106,251
 (1,943) Trading liabilities
Commodity contracts424,996
 18,539
 Trading assets 127,582
 16,725
 Trading assets
Commodity contracts396,754
 (17,310) Trading liabilities 128,368
 (15,972) Trading liabilities

 March 31, 2017 December 31, 2016
($ in Thousands)Notional Amount 
Fair
Value
 
Balance Sheet
Category
 Notional Amount Fair
Value
 Balance Sheet
Category
Interest rate-related instruments — customer and mirror$2,098,658
 $31,841
 Trading assets $2,039,323
 $33,671
 Trading assets
Interest rate-related instruments — customer and mirror2,098,658
 (31,113) Trading liabilities 2,039,323
 (33,188) Trading liabilities
Foreign currency exchange forwards83,012
 812
 Trading assets 109,675
 2,002
 Trading assets
Foreign currency exchange forwards80,227
 (774) Trading liabilities 106,251
 (1,943) Trading liabilities
Commodity contracts301,425
 16,653
 Trading assets 127,582
 16,725
 Trading assets
Commodity contracts300,011
 (15,674) Trading liabilities 128,368
 (15,972) Trading liabilities


Mortgage Derivatives
Interest rate lock commitments to originate residential mortgage loans held for sale and forward commitments to sell residential mortgage loans are considered derivative instruments, and the fair value of these commitments is recorded on the consolidated balance sheets with the changes in fair value recorded as a component of mortgage banking, net.
Written and Purchased Options (Time Deposit)
Historically, the Corporation had entered into written and purchased option derivative instruments to facilitate an equity linked time deposit product (the “Power CD”), which the Corporation ceased offering in September 2013. The Power CD was a time deposit that provided the purchaser a guaranteed return of principal at maturity plus a potential equity return (a written option), while the Corporation received a known stream of funds based on the equity return (a purchased option). The written and purchased options are mirror derivative instruments, which are carried at fair value on the consolidated balance sheets.
The table below identifies the balance sheet category and fair values of the Corporation’s derivative instruments, which are not designated as hedging instruments.
 September 30, 2017 December 31, 2016
($ in Thousands)Notional Amount Fair
Value
 Balance Sheet
Category
 Notional Amount Fair
Value
 Balance Sheet
Category
Interest rate lock commitments (mortgage)$354,075
 $2,729
 Other assets $285,345
 $206
 Other assets
Forward commitments (mortgage)243,500
 234
 Other assets 179,600
 2,908
 Other assets
Purchased options (time deposit)53,074
 1,434
 Other assets 80,554
 2,576
 Other assets
Written options (time deposit)53,074
 (1,434) Other liabilities 80,554
 (2,576) Other liabilities

 March 31, 2017 December 31, 2016
($ in Thousands)Notional Amount Fair
Value

 Balance Sheet
Category
 Notional Amount Fair
Value

 Balance Sheet
Category
Interest rate lock commitments (mortgage)291,674
 1,803
 Other assets 285,345
 206
 Other assets
Forward commitments (mortgage)100,750
 (373) Other liabilities 179,600
 2,908
 Other assets
Purchased options (time deposit)80,116
 2,290
 Other assets 80,554
 2,576
 Other assets
Written options (time deposit)80,116
 (2,290) Other liabilities 80,554
 (2,576) Other liabilities


The table below identifies the income statement category of the gains and losses recognized in income on the Corporation’s derivative instruments not designated as hedging instruments.
 
Income Statement Category of
Gain / (Loss) Recognized in Income
Nine Months Ended September 30,
($ in Thousands) 2017 2016
Derivative Instruments    
Interest rate-related instruments — customer and mirror, netCapital market fees, net$(115) $(888)
Interest rate lock commitments (mortgage)Mortgage banking, net2,523
 2,768
Forward commitments (mortgage)Mortgage banking, net(2,674) (2,271)
Foreign currency exchange forwardsCapital market fees, net(39) (85)
Commodity contractsCapital market fees, net476
 690



 
Income Statement Category of
Gain / (Loss) Recognized in Income
For the Three Months Ended March 31,
($ in Thousands) 2017 2016
Derivative Instruments:    
Interest rate-related instruments — customer and mirror, netCapital market fees, net$245
 $(870)
Interest rate lock commitments (mortgage)Mortgage banking, net1,597
 1,731
Forward commitments (mortgage)Mortgage banking, net(3,281) (2,135)
Foreign currency exchange forwardsCapital market fees, net(21) (28)
Commodity contractsCapital market fees, net226
 




Note 11 Balance Sheet Offsetting
Interest Rate-Related Instruments and Commodity Contracts (“Interest and Commodity Agreements”)
The Corporation enters into interest rate-related instruments to facilitate the interest rate risk management strategies of commercial customers. The Corporation also enters into commodity contracts to manage commercial customers' exposure to fluctuating commodity prices. The Corporation mitigates these risks by entering into equal and offsetting interest and commodity agreements with highly rated third party financial institutions. The Corporation is party to master netting arrangements with its financial institution counterparties that creates a single net settlement of all legal claims or obligations to pay or receive the net amount of settlement of the individual interest and commodity agreements. Collateral, usually in the form of investment securities and cash, is posted by the counterparty with net liability positions in accordance with contract thresholds. The Corporation does not offset assets and liabilities under these arrangements for financial statement presentation purposes. See Note 10 for additional information on the Corporation’s derivative and hedging activities.
Securities Sold Under Agreements to Repurchase (“Repurchase Agreements”)
The Corporation enters into agreements under which it sells securities subject to an obligation to repurchase the same or similar securities. These repurchase agreements are accounted for as collateralized financing arrangements (i.e., secured borrowings) and not as a sale and subsequent repurchase of securities (i.e., there is no offsetting or netting of the investment securities assets with the repurchase agreement liabilities). The right of set-off for a repurchase agreement resembles a secured borrowing, whereby the collateral would be used to settle the fair value of the repurchase agreement should the Corporation be in default (e.g., fails to make an interest payment to the counterparty). In addition, the Corporation does not enter into reverse repurchase agreements; therefore, there is no such offsetting to be done with the repurchase agreements. See Note 9 for additional disclosures on repurchase agreements.
The following table presents the assets and liabilities subject to an enforceable master netting arrangement. The interest and commodity agreements we have with our commercial customers are not subject to an enforceable master netting arrangement, and therefore, are excluded from this table.
 
Gross
amounts
recognized
   
Gross amounts not offset
in the balance sheet
  
 
Gross amounts
offset in the
balance sheet
 
Net amounts
presented in
the balance sheet
 
Financial
instruments
 Collateral Net amount
 ($ in Thousands)  
September 30, 2017           
Derivative assets           
Interest and commodity agreements$23,224
 $
 $23,224
 $(21,783) $(1,441) $
Derivative liabilities           
Interest and commodity agreements$21,783
 $
 $21,783
 $(21,783) $
 $
December 31, 2016           
Derivative assets           
Interest and commodity agreements$18,031
 $
 $18,031
 $(18,031) $
 $
Derivative liabilities           
Interest and commodity agreements$31,075
 $
 $31,075
 $(18,031) $(11,148) $1,896


 
Gross
amounts
recognized
   
Gross amounts not offset
in the balance sheet
  
 
Gross amounts
offset in the
balance sheet
 
Net amounts
presented in
the balance sheet
 
Financial
instruments
 Collateral Net amount
 ($ in Thousands)  
March 31, 2017           
Derivative assets:           
Interest and commodity agreements$23,374
 $
 $23,374
 $(19,022) $(4,352) $
Derivative liabilities:           
Interest and commodity agreements$19,022
 $
 $19,022
 $(19,022) $
 $
December 31, 2016           
Derivative assets:           
Interest and commodity agreements$18,031
 $
 $18,031
 $(18,031) $
 $
Derivative liabilities:           
Interest and commodity agreements$31,075
 $
 $31,075
 $(18,031) $(11,148) $1,896



Note 12 Commitments, Off-Balance Sheet Arrangements, and Legal Proceedings and Regulatory Matters
The Corporation utilizes a variety of financial instruments in the normal course of business to meet the financial needs of its customers and to manage its own exposure to fluctuations in interest rates. These financial instruments include lending-related and other commitments (see below) as well as derivative instruments (see Note 10). The following is a summary of lending-related commitments.
 September 30, 2017 December 31, 2016
 ($ in Thousands)
Commitments to extend credit, excluding commitments to originate residential mortgage loans held for sale(a)(b)
$8,002,766
 $8,131,131
Commercial letters of credit(a)
8,961
 7,923
Standby letters of credit(c)
233,783
 259,632
 March 31, 2017 December 31, 2016
 ($ in Thousands)
Commitments to extend credit, excluding commitments to originate residential mortgage loans held for sale(a)(b)
$8,041,839
 $8,131,131
Commercial letters of credit(a)
7,490
 7,923
Standby letters of credit(c)
268,612
 259,632


(a)These off-balance sheet financial instruments are exercisable at the market rate prevailing at the date the underlying transaction will be completed and, thus, are deemed to have no current fair value, or the fair value is based on fees currently charged to enter into similar agreements and is not material at March 31,September 30, 2017 or December 31, 2016.
(b)Interest rate lock commitments to originate residential mortgage loans held for sale are considered derivative instruments and are disclosed in Note 10.
(c)The Corporation has established a liability of $2 million at September 30, 2017 and $3 million at both March 31, 2017 and December 31, 2016, as an estimate of the fair value of these financial instruments.
Lending-related Commitments
As a financial services provider, the Corporation routinely enters into commitments to extend credit. Such commitments are subject to the same credit policies and approval process accorded to loans made by the Corporation, with each customer’s creditworthiness evaluated on a case-by-case basis. The commitments generally have fixed expiration dates or other termination clauses and may require the payment of a fee. The Corporation’s exposure to credit loss in the event of nonperformance by the other party to these financial instruments is represented by the contractual amount of those instruments. The amount of collateral obtained, if deemed necessary by the Corporation upon extension of credit, is based on management’s credit evaluation of the customer. Since a significant portion of commitments to extend credit are subject to specific restrictive loan covenants or may expire without being drawn upon, the total commitment amounts do not necessarily represent future cash flow requirements. An allowance for unfunded commitments is maintained at a level believed by management to be sufficient to absorb estimated probable losses related to unfunded commitments (including unfunded loan commitments and letters of credit). The allowance for unfunded commitments totaled $24 million at March 31,September 30, 2017 compared toand $25 million at December 31, 2016, and is included in accrued expenses and other liabilities on the consolidated balance sheets.
Lending-related commitments include commitments to extend credit, commitments to originate residential mortgage loans held for sale, commercial letters of credit, and standby letters of credit. Commitments to extend credit are legally binding agreements to lend to customers at predetermined interest rates, as long as there is no violation of any condition established in the contracts. Interest rate lock commitments to originate residential mortgage loans held for sale and forward commitments to sell residential mortgage loans are considered derivative instruments, and the fair value of these commitments is recorded on the consolidated balance sheets. The Corporation’s derivative and hedging activity is further described in Note 10. Commercial and standby letters of credit are conditional commitments issued to guarantee the performance of a customer to a third party. Commercial letters of credit are issued specifically to facilitate commerce and typically result in the commitment being drawn on when the underlying transaction is consummated between the customer and the third party, while standby letters of credit generally are contingent upon the failure of the customer to perform according to the terms of the underlying contract with the third party.
Other Commitments
The Corporation has principal investment commitments to provide capital-based financing to private and public companies through either direct investments in specific companies or through investment funds and partnerships. The timing of future cash requirements to fund such commitments is generally dependent on the investment cycle, whereby privately held companies are funded by private equity investors and ultimately sold, merged, or taken public through an initial offering, which can vary based on overall market conditions, as well as the nature and type of industry in which the companies operate. The Corporation also invests in unconsolidated projects including low-income housing, new market tax credit projects, and historic tax credit projects to promote the revitalization of primarily low-to-moderate-income neighborhoods throughout the local communities of its bank subsidiary. As a limited partner in these unconsolidated projects, the Corporation is allocated tax credits and deductions associated with the underlying projects. The aggregate carrying value of these investments at March 31,September 30, 2017, was $111$142 million, compared to $85 million at December 31, 2016, included in other assets on the consolidated balance sheets. Related to these investments, the Corporation had remaining commitments to fund of $80$101 million at March 31,September 30, 2017, and $69 million at December 31, 2016.



Legal Proceedings
The Corporation is party to various pending and threatened claims and legal proceedings arising in the normal course of business activities, some of which involve claims for substantial amounts. Although there can be no assurance as to the ultimate outcomes, the Corporation believes it has meritorious defenses to the claims asserted against it in its currently outstanding matters, including the matters described below, and with respect to such legal proceedings, intends to continue to defend itself vigorously. The Corporation will consider settlement of cases when, in management’s judgment, it is in the best interests of both the Corporation and its shareholders.
On at least a quarterly basis, the Corporation assesses its liabilities and contingencies in connection with all pending or threatened claims and litigation, utilizing the most recent information available. On a matter by matter basis, an accrual for loss is established for those matters which the Corporation believes it is probable that a loss may be incurred and that the amount of such loss can be reasonably estimated. Once established, each accrual is adjusted as appropriate to reflect any subsequent developments. Accordingly, management’s estimate will change from time to time, and actual losses may be more or less than the current estimate. For matters where a loss is not probable, or the amount of the loss cannot be estimated, no accrual is established.
Resolution of legal claims is inherently unpredictable, and in many legal proceedings various factors exacerbate this inherent unpredictability, including where the damages sought are unsubstantiated or indeterminate, it is unclear whether a case brought as a class action will be allowed to proceed on that basis, discovery is not complete, the proceeding is not yet in its final stages, the matters present legal uncertainties, there are significant facts in dispute, there are a large number of parties (including where it is uncertain how liability, if any, will be shared among multiple defendants), or there is a wide range of potential results.


A lawsuit, R.J. ZAYED v. Associated Bank, N.A., was filed in the United States District Court for the District of Minnesota on January 29, 2013. The lawsuit relates to a Ponzi scheme perpetrated by Oxford Global Partners and related entities (“Oxford”) and individuals and was brought by the receiver for Oxford. Oxford was a depository customer of Associated Bank (the "Bank"). The lawsuit claims that the Bank is liable for failing to uncover the Oxford Ponzi scheme, and specifically alleges the Bank aided and abetted (1) the fraudulent scheme; (2) a breach of fiduciary duty; (3) conversion; and (4) false representations and omissions. The lawsuit seeks unspecified consequential and punitive damages. The District Court granted the Bank’s motion to dismiss the complaint on September 30, 2013. On March 2, 2015, the U.S. Court of Appeals for the Eighth Circuit reversed the District Court and remanded the case back to the District Court for further proceedings. On January 31, 2017, the District Court granted the Bank’s motion for summary judgment. The receiver has appealed the District Court’s summary judgment decision to the Eighth Circuit Court of Appeals. It is not possible for management to assess the probability of a material adverse outcome or reasonably estimate the amount of any potential loss at this time. A lawsuit by investors in the same Ponzi scheme, Herman Grad, et al v. Associated Bank, N.A., brought in Brown County, Wisconsin in October 2009 was dismissed by the circuit court, and the dismissal was affirmed by the Wisconsin Court of Appeals in June 2011 in an unpublished opinion.

Two complaints were filed against the Bank on January 11, 2016 in the United States Bankruptcy Court for the Northern District of Illinois, Eastern Division in connection with the In re: World Marketing Chicago, LLC, et al Chapter 11 bankruptcy proceeding. In the first complaint, The Official Committee of Unsecured Creditors of World Marketing Chicago, LLC, et al v. Associated Bank, N.A., the plaintiff seeks to avoid guarantees and pledges of collateral given by the debtors to secure a revolving financing commitment of $6 million to the debtors’ parent company from the Bank. The plaintiff alleges a variety of legal theories under federal and state law, including fraudulent conveyance, preferential transfer and conversion, in support of its position. The plaintiff seeks return of approximately $4 million paid to the Bank and the avoidance of the security interest in the collateral securing the remaining indebtedness to the Bank. The Bank intends to vigorously defend this lawsuit. In the second complaint, American Funds Service Company v. Associated Bank, N.A., the plaintiff alleges that approximately $600,000 of funds it had advanced to the World Marketing entities to apply towards future postage fees was swept by the Bank from World Marketing’s bank accounts. Plaintiff seeks the return of such funds from the Bank under several theories, including Sec. 541(d) of the Bankruptcy Code, the creation of a resulting trust, and unjust enrichment. The Bank intends to vigorously defend this lawsuit. It is not possible for management to assess the probability of a material adverse outcome or reasonably estimate the amount of any potential loss at this time with respect to these two lawsuits.

Subsequent to the announcement on July 20, 2017, of the Merger Agreement between the Corporation and Bank Mutual, several lawsuits were filed in connection with the proposed merger. On July 28, 2017, two substantially identical purported class action complaints, each by various individual plaintiffs, were filed with the Wisconsin Circuit Court for Milwaukee County on behalf of the respective named plaintiffs and other Bank Mutual shareholders against Bank Mutual, the members of the Bank Mutual board, and the Corporation. The lawsuits are captioned Schumel et al v. Bank Mutual Corporation et al. and Paquin et al. v. Bank Mutual Corporation et al. Both complaints allege state law breach of fiduciary duty claims against the Bank Mutual board for, among other things, seeking to sell Bank Mutual through an allegedly defective process, for an allegedly unfair price and on allegedly unfair terms. On August 30, 2017, a third purported class action complaint, captioned Wollenburg et al. v. Bank Mutual Corporation


et al., was filed in the Wisconsin Circuit Court for Milwaukee County, on behalf of the same class of shareholders and against the same defendants as the prior two complaints. The Wollenburg complaint asserts similar allegations as the prior two complaints, and further alleges that the preliminary proxy statement/prospectus filed with the SEC contains various alleged misstatements or omissions under federal securities law. The Paquin, Schumel and Wollenburg complaints allege that the Corporation aided and abetted Bank Mutual's directors' alleged breaches of fiduciary duty. The parties have entered into a stipulation seeking to consolidate the three actions. On September 13, 2017, the Corporation filed a notice of removal of the Paquin, Schumel and Wollenburg actions to the United States District Court for the Eastern District of Wisconsin.  On September 15, 2017, the plaintiffs in the Paquin, Schumel and Wollenburg actions filed identical motions to remand the three cases back to state court, and on September 27, 2017, the defendants filed oppositions to the motions to remand.  On October 3, 2017, the defendants filed motions to dismiss the three actions. On September 6, 2017, a fourth purported class action complaint, captioned Parshall et al., v. Bank Mutual Corporation et al., was filed in the U.S. District Court for the Eastern District of Wisconsin, on behalf of the same class of shareholders and against the same defendants as the prior complaints. The Parshall complaint criticizes the adequacy of the merger consideration and alleges that Bank Mutual, the members of the Bank Mutual board and the Corporation allegedly omitted and/or misrepresented certain information in the registration statement on Form S-4 filed in connection with the proposed merger in violation of the federal securities laws. The lawsuits seek, among other things, to enjoin the consummation of the transaction and damages. The Corporation believes the allegations are without merit. On October 13, 2017, Bank Mutual and the Corporation reached agreement with the plaintiffs in each of the four cases whereby Bank Mutual issued certain additional disclosures in a Form 8-K, and each of the plaintiffs have agreed to dismiss their actions with prejudice as to the named plaintiffs and without prejudice as to the rest of the purported class members.
Regulatory Matters
On May 22, 2015, the Bank entered into a Conciliation Agreement ("Conciliation Agreement") with the U.S. Department of Housing and Urban Development ("HUD") which resolved the HUD investigation into the Bank's lending practices during the years 2008-2010. The Bank's commitments under the Conciliation Agreement are spread over a three-year period and include commitments to do the following in minority communities: make mortgage loans of approximately $196 million; open one branch and four loan production offices; establish special financing programs; make affordable home repair grants; engage in affirmative marketing outreach; provide financial education programs; and make grants to support community reinvestment training and education. The cost of these commitments will be spread over four calendar years and is not expected to have a material impact on the Corporation's financial condition or results of operation.

Beginning in late 2013, the Corporation began reviewing a variety of legacy products provided by third parties, including debt protection and identity protection products. In connection with this review, the Corporation has made and plans to make, remediation payments to affected customers and former customers, and has reserved accordingly.

A variety of consumer products, including the legacy debt protection and identity protection products referred to above, and mortgage and deposit products, and certain fees and charges related to such products, have come under increased regulatory scrutiny. It is possible that regulatory authorities could bring enforcement actions, including civil money penalties, or take other actions against the Corporation and the Bank in regard to these consumer products. The Bank could also determine of its own accord, or be required by regulators, to refund or otherwise make remediation payments to customers in connection with these products. It is not possible at this time for management to assess the probability of a material adverse outcome or reasonably estimate the amount of any potential loss related to such matters.

Two complaints were filed againstOn March 27, 2017, the Bank on January 11, 2016 inreceived a Community Reinvestment Act ("CRA") rating from the United States Bankruptcy CourtOffice of the Comptroller of the Currency of "Satisfactory" for the Northern Districtperiod from January 1, 2011 through July 27, 2015. As a result of Illinois, Eastern Division in connection withthis rating, the In re: World Marketing Chicago, LLC, et al Chapter 11 bankruptcy proceeding. In the first complaint, The Official Committee of Unsecured Creditors of World Marketing Chicago, LLC, et al v. Associated Bank,


N.A., the plaintiff seeks to avoid guarantees and pledges of collateral given by the debtors to secure a revolving financing commitment of $6 million to the debtors’ parent company from the Bank. The plaintiff alleges a variety of legal theories under federal and state law, including fraudulent conveyance, preferential transfer and conversion, in support of its position. The plaintiff seeks return of approximately $4 million paid to the Bank and the avoidancerestrictions on certain of the security interest inBank's activities that had been imposed under the collateral securing the remaining indebtednessprevious "Needs to the Bank. The Bank intends to vigorously defend this lawsuit. In the second complaint, American Funds Service Company v. Associated Bank, N.A., the plaintiff alleges that approximately $600,000 of funds it had advanced to the World Marketing entities to apply towards future postage fees was swept by the Bank from World Marketing’s bank accounts. Plaintiff seeks the return of such funds from the Bank under several theories, including Sec. 541(d) of the Bankruptcy Code, the creation of a resulting trust, and unjust enrichment. The Bank intends to vigorously defend this lawsuit. It is not possible for management to assess the probability of a material adverse outcome or reasonably estimate the amount of any potential loss at this time with respect to these two lawsuits.Improve" CRA rating are no longer applicable.
Mortgage Repurchase Reserve
The Corporation sells residential mortgage loans to investors in the normal course of business. Residential mortgage loans sold to others are predominantly conventional residential first lien mortgages originated under our usual underwriting procedures, and are most often sold on a nonrecourse basis, primarily to the GSEs. The Corporation’s agreements to sell residential mortgage loans in the normal course of business usually require certain representations and warranties on the underlying loans sold, related to credit information, loan documentation, collateral, and insurability. Subsequent to being sold, if a material underwriting deficiency or documentation defect is discovered, the Corporation may be obligated to repurchase the loan or reimburse the GSEs for losses incurred (collectively, “make whole requests”). The make whole requests and any related risk of loss under the representations and warranties are largely driven by borrower performance.
As a result of make whole requests, the Corporation has repurchased loans with principal balances of approximately $112,000$1 million and $2 million during the threenine months ended March 31,September 30, 2017 and the year ended December 31, 2016, respectively. The loss reimbursement and settlement claims paid for both the threenine months ended March 31,September 30, 2017 and the year ended December 31,


2016 respectively were negligible. Make whole requests during 2016 and the first threenine months of 2017 generally arose from loans sold during the period of January 1, 2012 to March 31,September 30, 2017, which total $9.4totaled $9.7 billion at the time of sale, and consisted primarily of loans sold to GSEs. As of March 31,September 30, 2017, approximately $6.1 billion of these sold loans remain outstanding.


The balance in the mortgage repurchase reserve at the balance sheet date reflects the estimated amount of potential loss the Corporation could incur from repurchasing a loan, as well as loss reimbursements, indemnifications, and other settlement resolutions. The following summarizes the changes in the mortgage repurchase reserve.
 Nine Months Ended September 30, 2017 Year Ended December 31, 2016
 ($ in Thousands)
Balance at beginning of period$900
 $1,197
Repurchase provision expense165
 456
Adjustments to provision expense
 (750)
Charge offs, net(148) (3)
Balance at end of period$917
 $900
 Three Months Ended March 31, 2017 Year Ended December 31, 2016
 ($ in Thousands)
Balance at beginning of period$900
 $1,197
Repurchase provision expense59
 456
Adjustments to provision expense
 (750)
Charge offs, net
 (3)
Balance at end of period$959
 $900

The Corporation may also sell residential mortgage loans with limited recourse (limited in that the recourse period ends prior to the loan’s maturity, usually after certain time and / or loan paydown criteria have been met), whereby repurchase could be required if the loan had defined delinquency issues during the limited recourse periods. At March 31,September 30, 2017, and December 31, 2016, there were approximately $45$77 million and $62 million, respectively, of residential mortgage loans sold with such recourse risk. There have been limited instances and immaterial historical losses on repurchases for recourse under the limited recourse criteria.
The Corporation has a subordinate position to the FHLB in the credit risk on residential mortgage loans it sold to the FHLB in exchange for a monthly credit enhancement fee. The Corporation has not sold loans to the FHLB with such credit risk retention since February 2005. At March 31,September 30, 2017 and December 31, 2016, there were $92$79 million and $98 million, respectively, of such residential mortgage loans with credit risk recourse, upon which there have been negligible historical losses to the Corporation.


Note 13 Fair Value Measurements
Fair value represents the estimated price at which an orderly transaction to sell an asset or to transfer a liability would take place between market participants at the measurement date under current market conditions (i.e., an exit price concept).
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Following is a description of the valuation methodologies used for the Corporation’s more significant instruments measured on a recurring basis at fair value, including the general classification of such instruments pursuant to the valuation hierarchy.
Assets and Liabilities Measured at Fair Value on a Recurring Basis
Investment securities available for sale: Where quoted prices are available in an active market, investment securities are classified in Level 1 of the fair value hierarchy. If quoted market prices are not available for the specific security, then fair values are estimated by using pricing models, quoted prices of securities with similar characteristics or discounted cash flows, with consideration given to the nature of the quote and the relationship of recently evidenced market activity to the fair value estimate, and are classified in Level 2 of the fair value hierarchy. Lastly, in certain cases where there is limited activity or less transparency around inputs to the estimated fair value, securities are classified within Level 3 of the fair value hierarchy. To validate the fair value estimates, assumptions, and controls, the Corporation looks to transactions for similar instruments and utilizes independent pricing provided by third party vendors or brokers and relevant market indices. While none of these sources are solely indicative of fair value, they serve as directional indicators for the appropriateness of the Corporation’s fair value estimates. The Corporation has determined that the fair value measures of its investment securities are classified predominantly within Level 1 or 2 of the fair value hierarchy. See Note 6 for additional disclosure regarding the Corporation’s investment securities.
Residential loans held for sale: Loans held for sale, which consist generally of current production of certain fixed-rate, first-lien residential mortgage loans, are now carried at estimated fair value. Effective January 1, 2017, management elected the fair value option to account for all newly originated mortgage loans held for sale which results in the financial impact of changing market conditions being reflected currently in earnings as opposed to being dependent upon the timing of sales. Therefore, the continually adjusted values going forward will better reflect the price the Corporation expects to receive from the sale of such loans. The estimated fair value was based on what secondary markets are currently offering for portfolios with similar characteristics, which the Corporation classifies as a Level 2 fair value measurement.
Derivative financial instruments (interest rate-related instruments): The Corporation has used, and may use again in the future, interest rate swaps to manage its interest rate risk. In addition, the Corporation offers interest rate-related instruments (swaps and caps) to service our customers’ needs, for which the Corporation simultaneously enters into offsetting derivative financial


instruments (i.e., mirror interest rate-related instruments) with third parties to manage its interest rate risk associated with these financial instruments. The valuation of the Corporation’s derivative financial instruments is determined using discounted cash flow analysis on the expected cash flows of each derivative and, also includes a nonperformance / credit risk component (credit valuation adjustment). See Note 10 for additional disclosure regarding the Corporation’s interest rate-related instruments.
The discounted cash flow analysis component in the fair value measurements reflects the contractual terms of the derivative financial instruments, including the period to maturity, and uses observable market-based inputs, including interest rate curves and implied volatilities. More specifically, the fair values of interest rate swaps are determined using the market standard methodology of netting the discounted future fixed cash receipts (or payments), with the variable cash payments (or receipts) based on an expectation of future interest rates (forward curves) derived from observable market interest rate curves. Likewise, the fair values of interest rate options (i.e., interest rate caps) are determined using the market standard methodology of discounting the future expected cash receipts that would occur if variable interest rates fall below (or rise above) the strike rate of the floors (or caps), with the variable interest rates used in the calculation of projected receipts on the floor (or cap) based on an expectation of future interest rates derived from observable market interest rate curves and volatilities.
The Corporation also 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 financial instruments for the effect of nonperformance risk, the Corporation has considered the impact of netting and any applicable credit enhancements, such as collateral postings, thresholds, mutual puts, and guarantees.
While the Corporation has determined that the majority of the inputs used to value its derivative financial instruments fall within Level 2 of the fair value hierarchy, the credit valuation adjustments utilize Level 3 inputs, such as estimates of current credit spreads to evaluate the likelihood of default by itself and its counterparties. The Corporation has assessed the significance of the impact of the credit valuation adjustments on the overall valuation of its derivative positions as of March 31,September 30, 2017, and December 31, 2016, and has determined that the credit valuation adjustments are not significant to the overall valuation of its derivative financial instruments. Therefore, the Corporation has determined that the fair value measures of its derivative financial instruments in their entirety are classified within Level 2 of the fair value hierarchy.


Derivative financial instruments (foreign currency exchange forwards): The Corporation provides foreign currency exchange services to customers. In addition, the Corporation may enter into a foreign currency exchange forward to mitigate the exchange rate risk attached to the cash flows of a loan or as an offsetting contract to a forward entered into as a service to our customer. The valuation of the Corporation’s foreign currency exchange forwards is determined using quoted prices of foreign currency exchange forwards with similar characteristics, with consideration given to the nature of the quote and the relationship of recently evidenced market activity to the fair value estimate, and are classified in Level 2 of the fair value hierarchy. See Note 10 for additional disclosures regarding the Corporation’s foreign currency exchange forwards.
Derivative financial instruments (commodity contracts): The Corporation enters into commodity contracts to manage commercial customers' exposure to fluctuating commodity prices, for which the Corporation simultaneously enters into offsetting derivative financial instruments (i.e., mirror commodity contracts) with third parties to manage its risk associated with these financial instruments. The valuation of the Corporation’s commodity contracts is determined using quoted prices of the underlying instrument,instruments, and are classified in Level 2 of the fair value hierarchy. See Note 10 for additional disclosures regarding the Corporation’s commodity contracts.



The table below presents the Corporation’s financial instruments measured at fair value on a recurring basis as of March 31,September 30, 2017 and December 31, 2016, aggregated by the level in the fair value hierarchy within which those measurements fall.
 Fair Value Hierarchy September 30, 2017 December 31, 2016
   ($ in Thousands)
Assets     
Investment securities available for sale:     
U.S. Treasury securities Level 1 $1,001
 $1,000
Residential mortgage-related securities:     
FNMA / FHLMC Level 2 505,261
 639,930
GNMA Level 2 1,667,836
 2,004,475
Private-label Level 2 1,072
 1,121
GNMA commercial mortgage-related securities Level 2 1,513,077
 2,028,898
Asset backed securities Level 2 108,628
 
Other securities (debt and equity) Level 1 1,650
 1,602
Other securities (debt and equity) Level 2 3,174
 3,000
Other securities (debt and equity) 
 Level 3 
 200
Total investment securities available for sale Level 1 2,651
 2,602
Total investment securities available for sale Level 2 3,799,048
 4,677,424
Total investment securities available for sale Level 3 
 200
Residential loans held for sale (a)
 Level 2 113,064
 
Interest rate-related instruments Level 2 26,837
 33,671
Foreign currency exchange forwards Level 2 3,053
 2,002
Interest rate lock commitments to originate residential mortgage loans held for sale Level 3 2,729
 206
Forward commitments to sell residential mortgage loans Level 3 234
 2,908
Commodity contracts Level 2 18,539
 16,725
Purchased options (time deposit) Level 2 1,434
 2,576
Liabilities     
Interest rate-related instruments Level 2 $26,469
 $33,188
Foreign currency exchange forwards Level 2 3,033
 1,943
Commodity contracts Level 2 17,310
 15,972
Written options (time deposit) Level 2 1,434
 2,576
 Fair Value Hierarchy March 31, 2017 December 31, 2016
   ($ in Thousands)
Assets:     
Investment securities available for sale:     
U.S. Treasury securities Level 1 $1,005
 $1,000
Residential mortgage-related securities:     
FNMA / FHLMC Level 2 590,419
 639,930
GNMA Level 2 2,039,826
 2,004,475
Private-label Level 2 1,102
 1,121
GNMA commercial mortgage-related securities Level 2 1,663,337
 2,028,898
Other securities (debt and equity) Level 1 1,601
 1,602
Other securities (debt and equity) Level 2 3,200
 3,000
Other securities (debt and equity) 
 Level 3 
 200
Total investment securities available for sale Level 1 2,606
 2,602
Total investment securities available for sale Level 2 4,297,884
 4,677,424
Total investment securities available for sale Level 3 
 200
Residential loans held for sale (a)
 Level 2 34,051
 
Interest rate-related instruments Level 2 31,841
 33,671
Foreign currency exchange forwards Level 2 812
 2,002
Interest rate lock commitments to originate residential mortgage loans held for sale Level 3 1,803
 206
Forward commitments to sell residential mortgage loans Level 3 
 2,908
Commodity contracts Level 2 16,653
 16,725
Purchased options (time deposit) Level 2 2,290
 2,576
Liabilities:     
Interest rate-related instruments Level 2 $31,113
 $33,188
Foreign currency exchange forwards Level 2 774
 1,943
Forward commitments to sell residential mortgage loans Level 3 373
 
Commodity contracts Level 2 15,674
 15,972
Written options (time deposit) Level 2 2,290
 2,576

(a)Effective January 1, 2017, residential loans originated for sale are accounted for under the fair value option. Prior periods have not been restated. For more information on this accounting policy change, please refer to Note 3 to the Notes to the Consolidated Financial Statements.3.


The table below presents a rollforward of the balance sheet amounts for the threenine months ended March 31,September 30, 2017 and the year ended December 31, 2016, for financial instruments measured on a recurring basis and classified within Level 3 of the fair value hierarchy.
 
Investment Securities
Available for Sale
 
Derivative Financial
Instruments
 ($ in Thousands)
Balance December 31, 2015$200
 $1,361
Total net gains included in income   
Mortgage derivative gain
 1,753
Balance December 31, 2016$200
 $3,114
Total net losses included in income   
Mortgage derivative loss
 (151)
Transfer out of level 3 securities(a)
(200) 
Balance September 30, 2017$
 $2,963
 
Investment Securities
Available for Sale
 
Derivative Financial
Instruments
 ($ in Thousands)
Balance December 31, 2015$200
 $1,361
Total net gains included in income:   
Mortgage derivative gain
 1,753
Balance December 31, 2016$200
 $3,114
Total net losses included in income:   
Mortgage derivative loss
 (1,684)
Transfer out of level 3 securities(a)
(200) 
Balance March 31, 2017$
 $1,430

(a) During the first quarter of 2017, the $200,000 level 3 investment security was transferred to level 2 based upon new pricing information.




For Level 3 assets and liabilities measured at fair value on a recurring or nonrecurring basis as of March 31,September 30, 2017, the Corporation utilized the following valuation techniques and significant unobservable inputs.
Derivative financial instruments (mortgage derivative — interest rate lock commitments to originate residential mortgage loans held for sale): The fair value is determined by the change in value from each loan’s rate lock date to the expected rate lock expiration date based on the underlying loan attributes, estimated closing ratios, and investor price matrix determined to be reasonably applicable to each loan commitment. The closing ratio calculation takes into consideration historical experience and loan-level attributes, particularly the change in the current interest rates from the time of initial rate lock. The closing ratio is periodically reviewed for reasonableness and reported to the Associated Mortgage Risk Management Committee. At March 31,September 30, 2017, the closing ratio was 90%87%.
Derivative financial instruments (mortgage derivative—forward commitments to sell mortgage loans): Mortgage derivatives include forward commitments doto deliver closed end residential mortgage loans into conforming Agency Mortgage Backed Securities (To be Announced, "TBA") or conforming Cash Forward sales. The fair value of such instruments is determined by the difference of current market prices for such traded instruments or available from forward cash delivery commitments and the original traded price for such commitments.  


The Corporation also relies on an internal valuation model to estimate the fair value of its forward commitments to sell residential mortgage loans (i.e., an estimate of what the Corporation would receive or pay to terminate the forward delivery contract based on market prices for similar financial instruments), which includes matching specific terms and maturities of the forward commitments against applicable investor pricing available. While there are Level 2 and 3 inputs used in the valuation models, the Corporation has determined that the majority of the inputs significant in the valuation of both of the mortgage derivatives fall within Level 3 of the fair value hierarchy. See Note 10 for additional disclosure regarding the Corporation’s mortgage derivatives.
Assets and Liabilities Measured at Fair Value on a Nonrecurring Basis
Following is a description of the valuation methodologies used for the Corporation’s more significant instruments measured on a nonrecurring basis at the lower of amortized cost or estimated fair value, including the general classification of such instruments pursuant to the valuation hierarchy.

Commercial loans held for sale: Loans held for sale are carried at the lower of cost or estimated fair value. The estimated fair value wasis based on what secondary markets are currently offering for portfolios with similar characteristics,a discounted cash flow analysis, which the Corporation classifies as a Level 2 nonrecurring fair value measurement.

Other real estate owned: Certain other real estate owned, upon initial recognition, was re-measured and reported at fair value through a charge off to the allowance for loan losses based upon the estimated fair value of the other real estate owned, less estimated selling costs. The fair value of other real estate owned, upon initial recognition or subsequent impairment, was estimated using appraised values, which the Corporation classifies as a Level 2 nonrecurring fair value measurement.


For Level 3, assets and liabilities measured at fair value on a nonrecurring basis as of March 31,September 30, 2017, the Corporation utilized the following valuation techniques and significant unobservable inputs.
Impaired loans: The Corporation considers a loan impaired when it is probable that the Corporation will be unable to collect all amounts due according to the original contractual terms of the note agreement, including both principal and interest. Management has determined that commercial and consumer loan relationships that have nonaccrual status or have had their terms restructured in a troubled debt restructuring meet this impaired loan definition. For individually evaluated impaired loans, the amount of impairment is based upon the present value of expected future cash flows discounted at the loan’s effective interest rate, the estimated fair value of the underlying collateral for collateral-dependent loans, or the estimated liquidity of the note. For individually evaluated impaired loans, the amount of impairment is based upon the present value of expected future cash flows discounted at the loan’s effective interest rate, the estimated fair value of the underlying collateral for collateral-dependent loans, or the estimated liquidity of the note, resulting in an average discount of approximately 20% or less. See Note 7 Loans for additional information regarding the Corporation’s impaired loans.
Mortgage servicing rights: Mortgage servicing rights do not trade in an active, open market with readily observable prices. While sales of mortgage servicing rights do occur, the precise terms and conditions typically are not readily available to allow for a “quoted price for similar assets” comparison. Accordingly, the Corporation utilizes an independent valuation from a third party which uses a discounted cash flow model to estimate the fair value of its mortgage servicing rights. The valuation model incorporates prepayment assumptions to project mortgage servicing rights cash flows based on the current interest rate scenario, which is then discounted to estimate an expected fair value of the mortgage servicing rights. The valuation model considers portfolio characteristics of the underlying mortgages, contractually specified servicing fees, prepayment assumptions, discount rate assumptions, delinquency rates, late charges, other ancillary revenue, costs to service, and other economic factors. The Corporation periodically reviews and assesses the underlying inputs and assumptions used in the model. In addition, the Corporation compares


its fair value estimates and assumptions to observable market data for mortgage servicing rights, where available, and to recent market activity and actual portfolio experience. Due to the nature of the valuation inputs, mortgage servicing rights are classified within Level 3 of the fair value hierarchy. The Corporation uses the amortization method (i.e., lower of amortized cost or estimated fair value measured on a nonrecurring basis), not fair value measurement accounting, for its mortgage servicing rights assets.
The discounted cash flow analyses that generate expected market prices utilize the observable characteristics of the mortgage servicing rights portfolio, as well as certain unobservable valuation parameters. The significant unobservable inputs used in the fair value measurement of the Corporation’s mortgage servicing rights are the weighted average constant prepayment rate and weighted average discount rate, which were 10.9% and 10.6% at March 31, 2017, respectively.rate. Significant increases (decreases) in any of those inputs in isolation could result in a significantly lower (higher) fair value measurement.
These parameter assumptions fall within a range that the Corporation, in consultation with an independent third party, believes purchasers of servicing would apply to such portfolios sold into the current secondary servicing market. Discussions are held with members from Treasury and the Community, Consumer, and Business segment to reconcile the fair value estimates and the key assumptions used by the respective parties in arriving at those estimates. The Associated Mortgage Risk Management Committee is responsible for providing control over the valuation methodology and key assumptions. To assess the reasonableness of the fair value measurement, the Corporation also compares the fair value and constant prepayment rate to a value calculated by an independent third party on an annual basis. See Note 8 for additional disclosure regarding the Corporation’s mortgage servicing rights.


The table below presents the Corporation’s loans held for sale, impaired loans, and mortgage servicing rightsassets measured at fair value on a nonrecurring basis, aggregated by the level in the fair value hierarchy within which those measurements fall.
  Income Statement Category of
Adjustment Recognized in Income
 Adjustment Recognized in Income
($ in Thousands)Fair Value Hierarchy Fair Value
September 30, 2017      
Assets    
Commercial loans held for sale(a)
Level 2 $9,718
Provision for credit losses $
Impaired loans(c)
Level 3 54,762
Provision for credit losses(d)
 (22,703)
Other real estate ownedLevel 2 3,291
Foreclosure / OREO expense, net (939)
Mortgage servicing rightsLevel 3 62,625
Mortgage banking, net (286)
       
December 31, 2016      
Assets      
Commercial loans held for saleLevel 2 $12,474
Provision for credit losses $(559)
Residential loans held for sale(b)
Level 2 108,010
Mortgage banking, net (3,760)
Impaired loans(c)
Level 3 79,270
Provision for credit losses(d)
 (75,194)
Other real estate ownedLevel 2 9,752
Foreclosure / OREO expense, net (1,091)
Mortgage servicing rightsLevel 3 73,149
Mortgage banking, net 200
  Income Statement Category of
Adjustment Recognized in Income
Adjustment Recognized in Income
($ in Thousands)Fair Value Hierarchy Fair Value
March 31, 2017     
Assets:   
Commercial loans held for sale (a)
Level 2 $2,901
Provision for credit losses$
Impaired loans (c)
Level 3 93,552
Provision for credit losses(25,785)
Other real estate ownedLevel 2 921
Foreclosure / OREO expense, net(583)
Mortgage servicing rightsLevel 3 68,037
Mortgage banking, net(217)
      
December 31, 2016     
Assets:     
Commercial loans held for saleLevel 2 $12,474
Provision for credit losses$(559)
Residential loans held for sale (b)
Level 2 108,010
Mortgage banking, net(3,760)
Impaired loans (c)
Level 3 79,270
Provision for credit losses(75,194)
Other real estate ownedLevel 2 9,752
Foreclosure / OREO expense, net(1,091)
Mortgage servicing rightsLevel 3 73,149
Mortgage banking, net200

(a)Commercial loans held for sale are carried at the lower of cost or estimated fair value. At March 31,September 30, 2017, the estimated fair value exceeded the cost and therefore there was no adjustment recognized in Income.income.
(b)Effective January 1, 2017, residential loans originated for sale are accounted for under the fair value option. Prior periods have not been restated. For more information on this accounting policy change, please refer to Note 3 to the Notes to the Consolidated Financial Statements.3.
(c)Represents individually evaluated impaired loans, net of the related allowance for loan losses.
(d)Represents provision for credit losses on individually evaluated impaired loans.

The change in provision for credit loss is primarily due to the oil and gas portfolio. For more information on the oil and gas portfolio, see Note 7.

Certain nonfinancial assets and nonfinancial liabilities measured at fair value on a nonrecurring basis include the fair value analysis in the second step of a goodwill impairment test, and intangible assets and other nonfinancial long-lived assets measured at fair value for impairment assessment.


The Corporations's significant Level 3 measurements which employ unobservable inputs that are readily quantifiable pertain to mortgage servicing rights and impaired loans. The table below presents information about these inputs and further discussion is found above.
Valuation TechniqueSignificant Unobservable InputWeighted Average Input Applied
September 30, 2017
Mortgage servicing rightsDiscounted cash flowDiscount rate11%
Mortgage servicing rightsDiscounted cash flowConstant prepayment rate12%
Impaired LoansAppraisals / Discounted cash flowCollateral / Discount factor16%




Fair Value of Financial Instruments
The Corporation is required to disclose estimated fair values for its financial instruments. Fair value estimates, methods, and assumptions are set forth below for the Corporation’s financial instruments.
 March 31, 2017 December 31, 2016 September 30, 2017 December 31, 2016
Fair Value Hierarchy Level Carrying Amount Fair Value Carrying Amount Fair ValueFair Value Hierarchy Level Carrying Amount Fair Value Carrying Amount Fair Value
  
 ($ in Thousands) ($ in Thousands)
Financial assets:        
Financial assets        
Cash and due from banks Level 1 $332,601
 $332,601
 $446,558
 $446,558
 Level 1 $354,331
 $354,331
 $446,558
 $446,558
Interest-bearing deposits in other financial institutions Level 1 337,167
 337,167
 149,175
 149,175
 Level 1 109,596
 109,596
 149,175
 149,175
Federal funds sold and securities purchased under agreements to resell Level 1 19,700
 19,700
 46,500
 46,500
 Level 1 27,700
 27,700
 46,500
 46,500
Investment securities held to maturityLevel 2 1,554,843
 1,550,322
 1,273,536
 1,264,674
Level 2 2,233,579
 2,243,845
 1,273,536
 1,264,674
Investment securities available for sale Level 1 2,606
 2,606
 2,602
 2,602
 Level 1 2,651
 2,651
 2,602
 2,602
Investment securities available for saleLevel 2 4,297,884
 4,297,884
 4,677,424
 4,677,424
Level 2 3,799,048
 3,799,048
 4,677,424
 4,677,424
Investment securities available for saleLevel 3 
 
 200
 200
Level 3 
 
 200
 200
FHLB and Federal Reserve Bank stocksLevel 2 139,273
 139,273
 140,001
 140,001
Level 2 172,446
 172,446
 140,001
 140,001
Commercial loans held for saleLevel 2 2,901
 2,901
 12,474
 12,474
Level 2 9,718
 9,718
 12,474
 12,474
Residential loans held for saleLevel 2 34,051
 34,051
 108,010
 108,010
Level 2 113,064
 113,064
 108,010
 108,010
Loans, netLevel 3 19,865,011
 19,752,810
 19,776,381
 19,680,317
Level 3 20,654,909
 20,504,971
 19,776,381
 19,680,317
Bank owned life insuranceLevel 2 587,600
 587,600
 585,290
 585,290
Bank and corporate owned life insuranceLevel 2 589,093
 589,093
 585,290
 585,290
Derivatives (trading and other assets)Level 2 51,596
 51,596
 54,974
 54,974
Level 2 49,863
 49,863
 54,974
 54,974
Derivatives (trading and other assets)Level 3 1,803
 1,803
 3,114
 3,114
Level 3 2,963
 2,963
 3,114
 3,114
Financial liabilities:        
Financial liabilities        
Noninterest-bearing demand, savings, interest-bearing demand, and money market accountsLevel 3 $20,213,126
 $20,213,126
 $20,282,321
 $20,282,321
Level 3 $20,012,174
 $20,012,174
 $20,282,321
 $20,282,321
Brokered CDs and other time depositsLevel 2 1,614,909
 1,614,909
 1,606,127
 1,606,127
Level 2 2,321,277
 2,321,277
 1,606,127
 1,606,127
Short-term fundingLevel 2 1,080,867
 1,080,867
 1,092,035
 1,092,035
Level 2 1,064,617
 1,064,617
 1,092,035
 1,092,035
Long-term fundingLevel 2 2,761,955
 2,790,093
 2,761,795
 2,791,841
Level 2 3,147,285
 3,171,059
 2,761,795
 2,791,841
Standby letters of credit (a)
Level 2 2,648
 2,648
 2,566
 2,566
Level 2 2,346
 2,346
 2,566
 2,566
Derivatives (trading and other liabilities)Level 2 49,851
 49,851
 53,679
 53,679
Level 2 48,246
 48,246
 53,679
 53,679
Derivatives (trading and other liabilities) Level 3 373
 373
 
 
(a)The commitment on standby letters of credit was $269$234 million and $260 million at March 31,September 30, 2017 and December 31, 2016, respectively. See Note 12 for additional information on the standby letters of credit and for information on the fair value of lending-related commitments.


Cash and due from banks, interest-bearing deposits in other financial institutions, and federal funds sold and securities purchased under agreements to resell: For these short-term instruments, the carrying amount is a reasonable estimate of fair value.
Investment securities (held to maturity and available for sale): The fair value of investment securities is based on quoted prices in active markets, or if quoted prices are not available for a specific security, then fair values are estimated by using pricing models, quoted prices of securities with similar characteristics, or discounted cash flows.
FHLB and Federal Reserve Bank stocks: The carrying amount is a reasonable fair value estimate for the Federal Reserve Bank and Federal Home Loan BankFHLB stocks given their “restricted” nature (i.e., the stock can only be sold back to the respective institutions (Federal Home Loan Bank(FHLB or Federal Reserve Bank) or another member institution at par).
Loans held for sale: The fair value estimation process for the loans held for sale portfolio is segregated by loan type. The estimated fair value for residential loans held for sale was based on what secondary markets are currently offering for portfolios with similar characteristics. The estimated fair value for commercial loans held for sale was based on a discounted cash flow analysis.
Loans, net: The fair value estimation process for the loan portfolio uses an exit price concept and reflects discounts the Corporation believes are consistent with liquidity discounts in the market place. Fair values are estimated for portfolios of loans with similar financial characteristics. Loans are segregated by type such as commercial and industrial, real estate construction, commercial real estate (owner occupied and investor), residential mortgage, home equity, and other consumer. The fair value of loans is estimated by discounting the future cash flows using the current rates at which similar loans would be made to borrowers with


similar credit ratings and for similar maturities. The fair value analysis also included other assumptions to estimate fair value,


intended to approximate those a market participant would use in an orderly transaction, with adjustments for discount rates, interest rates, liquidity, and credit spreads, as appropriate.
Bank and corporate owned life insurance ("BOLI" and "COLI"): The fair value of BOLI and COLI approximates the carrying amount, because upon liquidation of these investments, the Corporation would receive the cash surrender value which equals the carrying amount. The Corporation has not purchased any new BOLI or COLI policies since 2008.
Deposits: The fair value of deposits with no stated maturity such as noninterest-bearing demand, savings, interest-bearing demand, and money market accounts, is equal to the amount payable on demand as of the balance sheet date. The fair value of Brokered CDs and other time deposits is based on the discounted value of contractual cash flows. The discount rate is estimated using the rates currently offered for deposits of similar remaining maturities. However, if the estimated fair value of Brokered CDs and other time deposits is less than the carrying value, the carrying value is reported as the fair value.
Short-term funding: The carrying amount is a reasonable estimate of fair value for existing short-term funding.
Long-term funding: Rates currently available to the Corporation for debt with similar terms and remaining maturities are used to estimate the fair value of existing long-term funding.
Standby letters of credit: The fair value of standby letters of credit represents deferred fees arising from the related off-balance sheet financial instruments. These deferred fees approximate the fair value of these instruments and are based on several factors, including the remaining terms of the agreement and the credit standing of the customer.
Derivatives (trading and other): A detailed description of the Corporation's derivative instruments can be found under the "Assets and Liabilities Measured at Fair Value on a Recurring Basis" section of this footnote.
Limitations: Fair value estimates are made at a specific point in time, based on relevant market information and information about the financial instrument. These estimates do not reflect any premium or discount that could result from offering for sale at one time the Corporation’s entire holdings of a particular financial instrument. Because no market exists for a significant portion of the Corporation’s financial instruments, fair value estimates are based on judgments regarding future expected loss experience, current economic conditions, risk characteristics of various financial instruments, and other factors. These estimates are subjective in nature and involve uncertainties and matters of significant judgment and, therefore, cannot be determined with precision. Changes in assumptions could significantly affect the estimates.




Note 14 Retirement Plans
The Corporation has a noncontributory defined benefit retirement plan (the Retirement Account Plan (“RAP”)) covering substantially all full-time employees.employees who meet participation requirements. The benefits are based primarily on years of service and the employee’s compensation paid. Employees of acquired entities generally participate in the RAP after consummation of the business combinations. Any retirement plans of acquired entities are typically merged into the RAP after completion of the mergers, and credit is usually given to employees for years of service at the acquired institution for vesting and eligibility purposes.
The Corporation also provides legacy healthcare access to a limited group of retired employees from a previous acquisition in the Postretirement Plan.  There are no other active retiree healthcare plans.
The components of net periodic benefit cost for the RAP and Postretirement PlansPlan for three and nine months ended March 31,September 30, 2017 and 2016 were as follows.
 Three Months Ended September 30, Nine Months Ended September 30,
 2017 2016 2017 2016
 ($ in Thousands)
Components of Net Periodic Benefit Cost       
RAP       
Service cost$1,713
 $1,636
 $5,276
 $5,086
Interest cost1,795
 1,781
 5,307
 5,341
Expected return on plan assets(4,929) (5,085) (14,692) (15,215)
Amortization of prior service cost(19) (80) (56) (55)
Amortization of actuarial loss619
 621
 1,594
 1,586
Total net pension cost$(821) $(1,127) $(2,571) $(3,257)
Postretirement Plan       
Interest cost$26
 $35
 $74
 $107
Amortization of prior service cost(19) 
 (57) 
Amortization of actuarial loss2
 
 2
 
Total net periodic benefit cost$9
 $35
 $19
 $107

 Three Months Ended March 31,
 2017 2016
 ($ in Thousands)
Components of Net Periodic Benefit Cost   
Pension Plan:   
Service cost$1,781
 $1,725
Interest cost1,756
 1,780
Expected return on plan assets(4,881) (5,065)
Amortization of prior service cost(19) 13
Amortization of actuarial loss488
 482
Total net pension cost$(875) $(1,065)
Postretirement Plan:   
Interest cost$24
 $36
Amortization of prior service cost(19) 
Total net periodic benefit cost$5
 $36
The Corporation’s funding policy is to pay at least the minimum amount required by federal law and regulations, with consideration given to the maximum funding amounts allowed. The Corporation regularly reviews the funding of its RAP. The Corporation made contributions of $6 million to its RAP in the first nine months of 2017. No contribution was made during the first nine months of 2016.

Note 15 Segment Reporting
The Corporation utilizes a risk-based internal profitability measurement system to provide strategic business unit reporting. The profitability measurement system is based on internal management methodologies designed to produce consistent results and reflect the underlying economics of the units. Certain strategic business units have been combined for segment information reporting purposes where the nature of the products and services, the type of customer and the distribution of those products and services are similar. The three reportable segments are Corporate and Commercial Specialty; Community, Consumer, and Business; and Risk Management and Shared Services. The financial information of the Corporation’s segments has been compiled utilizing the accounting policies described in the Corporation’s 2016 Annual Report on Form 10-K, with certain exceptions. The more significant of these exceptions are described herein.
The Corporation allocates net interest income using an internal funds transfer pricing ("FTP") methodology that charges users of funds (assets) and credits providers of funds (liabilities, primarily deposits) based on the maturity, prepayment and / or repricing characteristics of the assets and liabilities. The net effect of this allocation is recorded in the Risk Management and Shared Services segment.
A credit provision is allocated to segments based on the expected long-term annual net charge off rates attributable to the credit risk of loans managed by the segment during the period. In contrast, the level of the consolidated provision for credit losses is determined based on an incurred loss model using the methodologies described in the Corporation’s 2016 Annual Report on Form 10-K to assess the overall appropriateness of the allowance for loan losses. The net effect of the credit provision is recorded in Risk Management and Shared Services. Indirect expenses incurred by certain centralized support areas are allocated to segments based on actual usage (for example, volume measurements) and other criteria. Certain types of administrative expense and bank-widebank-


wide expense accruals (including amortization of core deposit and other intangible assets associated with acquisitions) are generally not allocated to segments. Income taxes are allocated to segments based on the Corporation’s estimated effective tax rate, with certain segments adjusted for any tax-exempt income or non-deductible expenses. Equity is allocated to the segments based on regulatory capital requirements and in proportion to an assessment of the inherent risks associated with the business of the segment (including interest, credit and operating risk).


The management accounting policies and processes utilized in compiling segment financial information are highly subjective and, unlike financial accounting, are not based on authoritative guidance similar to U.S. generally accepted accounting principles. As a result, reported segments and the financial information of the reported segments are not necessarily comparable with similar information reported by other financial institutions. Furthermore, changes in management structure or allocation methodologies and procedures may result in changes in previously reported segment financial data.
A brief description of each business segment is presented below. A more in-depth discussion of these segments can be found in the Segment Reporting footnote in the Corporation’s 2016 Annual Report on Form 10-K.
The Corporate and Commercial Specialty segment serves a wide range of customers including larger businesses, developers, not-for-profits, municipalities, and financial institutions. The Community, Consumer, and Business segment serves individuals, as well as small and mid-sized businesses. The Risk Management and Shared Services segment includes key shared operational functions and also includes residual revenue and expenses, representing the difference between actual amounts incurred and the amounts allocated to operating segments, including interest rate risk residuals (FTP mismatches) and credit risk and provision residuals (long-term credit charge mismatches).
Information about the Corporation’s segments is presented below.
Segment Income Statement Data       
($ in Thousands)
Corporate and
Commercial
Specialty
 
Community,
Consumer, and
Business
 
Risk Management
and Shared Services
 
Consolidated
Total
Three Months Ended March 31, 2017       
Net interest income$89,388
 $88,928
 $1,958
 $180,274
Noninterest income11,993
 64,870
 2,968
 79,831
Total revenue101,381
 153,798
 4,926
 260,105
Credit provision*11,580
 4,507
 (7,087) 9,000
Noninterest expense37,479
 116,097
 20,115
 173,691
Income (loss) before income taxes52,322
 33,194
 (8,102) 77,414
Income tax expense (benefit)17,649
 11,618
 (8,123) 21,144
Net income$34,673
 $21,576
 $21
 $56,270
Return on average allocated capital (ROCET1)**12.6% 15.2% (2.5)% 10.6%
Three Months Ended March 31, 2016       
Net interest income$79,164
 $85,605
 $7,218
 $171,987
Noninterest income11,613
 63,748
 7,831
 83,192
Total revenue90,777
 149,353
 15,049
 255,179
Credit provision*12,739
 6,142
 1,119
 20,000
Noninterest expense34,403
 121,295
 18,273
 173,971
Income (loss) before income taxes43,635
 21,916
 (4,343) 61,208
Income tax expense (benefit)14,579
 7,670
 (3,575) 18,674
Net income (loss)$29,056
 $14,246
 $(768) $42,534
Return on average allocated capital (ROCET1)**11.3% 9.1% (5.0)% 8.6%


Segment Balance Sheet Data       
($ in Thousands)
Corporate and
Commercial
Specialty
 
Community,
Consumer, and
Business
 
Risk Management
and Shared Services
 
Consolidated
Total
Three Months Ended March 31, 2017       
Average earning assets$10,759,811
 $9,130,457
 $6,449,046
 $26,339,314
Average loans10,753,314
 9,128,656
 190,755
 20,072,725
Average deposits6,420,401
 11,337,064
 3,708,257
 21,465,722
Average allocated capital (CET1)**$1,114,610
 $576,464
 $370,675
 $2,061,749
Three Months Ended March 31, 2016       
Average earning assets$9,720,028
 $9,120,319
 $6,432,026
 $25,272,373
Average loans9,711,221
 9,119,020
 92,589
 18,922,830
Average deposits5,918,341
 11,100,195
 3,556,638
 20,575,174
Average allocated capital (CET1)**$1,031,659
 $627,211
 $237,611
 $1,896,481
* The consolidated credit provision is equal to the actual reported provision for credit losses.
** The Federal Reserve establishes capital adequacy requirements for the Corporation, including common equity Tier 1. For segment reporting purposes, the ROCET1 reflects return on average allocated common equity Tier 1. The ROCET1 for the Risk Management and Shared Services segment and the Consolidated Total is inclusive of the annualized effect of the preferred stock dividends.

Segment Income Statement Data       
($ in Thousands)Corporate and
Commercial
Specialty
 Community,
Consumer, and
Business
 Risk Management
and Shared Services
 Consolidated
Total
Nine Months Ended September 30, 2017       
Net interest income$271,615
 $270,011
 $12,589
 $554,215
Noninterest income36,768
 198,546
 12,822
 248,136
Total revenue308,383
 468,557
 25,411
 802,351
Credit provision(a)
32,549
 15,317
 (21,866) 26,000
Noninterest expense116,578
 361,580
 49,276
 527,434
Income (loss) before income taxes159,256
 91,660
 (1,999) 248,917
Income tax expense (benefit)53,082
 32,081
 (15,500) 69,663
Net income$106,174
 $59,579
 $13,501
 $179,254
Return on average allocated capital (ROCET1)(b)
12.7% 13.6% 2.2% 11.0%
Nine Months Ended September 30, 2016       
Net interest income$242,800
 $257,848
 $26,590
 $527,238
Noninterest income35,172
 207,460
 17,962
 260,594
Total revenue277,972
 465,308
 44,552
 787,832
Credit provision(a)
38,933
 18,357
 (2,290) 55,000
Noninterest expense109,511
 370,714
 43,420
 523,645
Income (loss) before income taxes129,528
 76,237
 3,422
 209,187
Income tax expense (benefit)42,623
 26,683
 (5,560) 63,746
Net income$86,905
 $49,554
 $8,982
 $145,441
Return on average allocated capital (ROCET1)(b)
10.9% 10.5% 1.4% 9.7%




Segment Balance Sheet Data       
($ in Thousands)Corporate and
Commercial
Specialty
 Community,
Consumer, and
Business
 Risk Management
and Shared Services
 Consolidated
Total
Average balances for YTD September 2017       
Average earning assets$10,846,418
 $9,418,173
 $6,587,401
 $26,851,992
Average loans10,837,933
 9,414,880
 248,165
 20,500,978
Average deposits6,759,105
 11,568,220
 3,486,354
 21,813,679
Average allocated capital (CET1)(b)
$1,121,800
 $584,774
 $387,388
 $2,093,962
Average balances for YTD September 2016       
Average earning assets$10,097,995
 $9,287,158
 $6,508,356
 $25,893,509
Average loans10,088,777
 9,285,848
 166,447
 19,541,072
Average deposits5,906,695
 11,320,106
 3,531,614
 20,758,415
Average allocated capital (CET1)(b)
$1,063,598
 $631,484
 $225,813
 $1,920,895
(a)The consolidated credit provision is equal to the actual reported provision for credit losses.
(b)The Federal Reserve establishes capital adequacy requirements for the Corporation, including common equity Tier 1. For segment reporting purposes, the return on common equity Tier 1 ("ROCET1") reflects return on average allocated common equity Tier 1. The ROCET1 for the Risk Management and Shared Services segment and the Consolidated Total is inclusive of the annualized effect of the preferred stock dividends.
Segment Income Statement Data       
($ in Thousands)
Corporate and
Commercial
Specialty
 
Community,
Consumer, and
Business
 
Risk Management
and Shared Services
 
Consolidated
Total
Three Months Ended September 30, 2017       
Net interest income$92,356
 $90,952
 $6,814
 $190,122
Noninterest income12,278
 67,867
 5,750
 85,895
Total revenue104,634
 158,819
 12,564
 276,017
Credit provision(a)
9,499
 5,046
 (9,545) 5,000
Noninterest expense39,681
 120,241
 17,505
 177,427
Income (loss) before income taxes55,454
 33,532
 4,604
 93,590
Income tax expense (benefit)19,070
 11,736
 (2,217) 28,589
Net income$36,384
 $21,796
 $6,821
 $65,001
Return on average allocated capital (ROCET1)(b)
12.8% 14.7% 4.4 % 11.7%
Three Months Ended September 30, 2016       
Net interest income$83,567
 $87,274
 $7,693
 $178,534
Noninterest income12,623
 78,580
 4,031
 95,234
Total revenue96,190
 165,854
 11,724
 273,768
Credit provision(a)
11,080
 5,969
 3,951
 21,000
Noninterest expense37,968
 127,454
 9,892
 175,314
Income (loss) before income taxes47,142
 32,431
 (2,119) 77,454
Income tax expense (benefit)14,907
 11,351
 (2,620) 23,638
Net income$32,235
 $21,080
 $501
 $53,816
Return on average allocated capital (ROCET1)(b)
11.7% 13.2% (2.9)% 10.5%
Segment Balance Sheet Data       
($ in Thousands)
Corporate and
Commercial
Specialty
 
Community,
Consumer, and
Business
 
Risk Management
and Shared Services
 
Consolidated
Total
Three Months Ended September 30, 2017       
Average earning assets$10,923,762
 $9,608,242
 $6,927,791
 $27,459,795
Average loans10,916,829
 9,602,098
 380,210
 20,899,137
Average deposits7,398,970
 11,788,606
 3,253,869
 22,441,445
Average allocated capital (CET1)(b)
$1,125,181
 $588,841
 $405,653
 $2,119,675
Three Months Ended September 30, 2016       
Average earning assets$10,441,454
 $9,414,718
 $6,577,991
 $26,434,163
Average loans10,435,341
 9,413,401
 204,034
 20,052,776
Average deposits6,227,305
 11,526,639
 3,650,081
 21,404,025
Average allocated capital (CET1)(b)
$1,091,624
 $633,392
 $227,600
 $1,952,616


(a)The consolidated credit provision is equal to the actual reported provision for credit losses.
(b)The Federal Reserve establishes capital adequacy requirements for the Corporation, including common equity Tier 1. For segment reporting purposes, the ROCET1 reflects return on average allocated common equity Tier 1. The ROCET1 for the Risk Management and Shared Services segment and the Consolidated Total is inclusive of the annualized effect of the preferred stock dividends.

Note 16 Accumulated Other Comprehensive Income (Loss)
The following table summarizestables summarize the components, ofchanges, and reclassifications from accumulated other comprehensive income (loss) at March 31, 2017for the nine months and 2016, changes during the three month periods thenmonths ended and reclassifications out of accumulated other comprehensive income (loss) during the three month periods ended March 31,September 30, 2017 and 2016, respectively.
($ in Thousands)
Investment
Securities
Available
For Sale
 
Defined Benefit
Pension and
Post Retirement
Obligations
 
Accumulated
Other
Comprehensive
Income (Loss)
Balance January 1, 2017$(20,079) $(34,600) $(54,679)
Other comprehensive income (loss) before reclassifications1,646
 
 1,646
Amounts reclassified from accumulated other comprehensive income (loss)     
Personnel expense
 1,483
 1,483
Interest income (amortization of net unrealized losses (gains) on available for sale securities transferred to held to maturity securities)(2,499) 
 (2,499)
Income tax (expense) benefit328
 (567) (239)
Net other comprehensive income (loss) during period(525) 916
 391
Balance September 30, 2017$(20,604) $(33,684) $(54,288)
      
Balance January 1, 2016$459
 $(33,075) $(32,616)
Other comprehensive income (loss) before reclassifications59,849
 
 59,849
Amounts reclassified from accumulated other comprehensive income (loss)     
Investment securities gain (loss), net(6,201) 
 (6,201)
Personnel expense
 1,531
 1,531
Interest income (amortization of net unrealized losses (gains) on available for sale securities transferred to held to maturity securities)(4,465) 
 (4,465)
Income tax (expense) benefit(18,768) (584) (19,352)
Net other comprehensive income (loss) during period30,415
 947
 31,362
Balance September 30, 2016$30,874
 $(32,128) $(1,254)
      
 Investment
Securities
Available
For Sale
 Defined Benefit
Pension and
Post Retirement
Obligations
 Accumulated
Other
Comprehensive
Income (Loss)
Balance July 1, 2017$(19,428) $(34,042) $(53,470)
Other comprehensive income (loss) before reclassifications(1,986) 
 (1,986)
Amounts reclassified from accumulated other comprehensive income (loss)     
Personnel expense
 583
 583
Interest income (amortization of net unrealized losses (gains) on available for sale securities transferred to held to maturity securities)76
 
 76
Income tax (expense) benefit734
 (225) 509
Net other comprehensive income (loss) during period(1,176) 358
 (818)
Balance September 30, 2017$(20,604) $(33,684) $(54,288)
      
Balance July 1, 2016$45,916
 $(32,463) $13,453
Other comprehensive income (loss) before reclassifications(22,894) 
 (22,894)
Amounts reclassified from accumulated other comprehensive income (loss)     
Investment securities gain (loss), net13
 
 13
Personnel expense
 541
 541
Interest income (amortization of net unrealized losses (gains) on available for sale securities transferred to held to maturity securities)(1,441) 
 (1,441)
Income tax (expense) benefit9,280
 (206) 9,074
Net other comprehensive income (loss) during period(15,042) 335
 (14,707)
Balance September 30, 2016$30,874
 $(32,128) $(1,254)


($ in Thousands)
Investments
Securities
Available
For Sale
 
Defined Benefit
Pension and
Post Retirement
Obligations
 
Accumulated
Other
Comprehensive
Income (Loss)
Balance January 1, 2017$(20,079) $(34,600) $(54,679)
Other comprehensive loss before reclassifications(2,112) 
 (2,112)
Amounts reclassified from accumulated other comprehensive income (loss):     
Personnel expense
 450
 450
Interest income (Amortization of net unrealized gains (losses) on available for sale securities transferred to held to maturity securities)(1,027) 
 (1,027)
Income tax (expense) benefit1,195
 (171) 1,024
Net other comprehensive income during period(1,944) 279
 (1,665)
Balance March 31, 2017$(22,023) $(34,321) $(56,344)
Balance January 1, 2016$459
 $(33,075) $(32,616)
Other comprehensive income before reclassifications60,422
 
 60,422
Amounts reclassified from accumulated other comprehensive income (loss):     
Investment securities gain, net(3,098) 
 (3,098)
Personnel expense
 495
 495
Interest income (Amortization of net unrealized gains on available for sale securities transferred to held to maturity securities)(1,572) 
 (1,572)
Income tax expense(21,275) (189) (21,464)
Net other comprehensive income during period34,477
 306
 34,783
Balance March 31, 2016$34,936
 $(32,769) $2,167



ITEM 2.Management's Discussion and Analysis of Financial Condition and Results of Operations
Special Note Regarding Forward-Looking Statements
This report contains statements that may constitute forward-looking statements within the meaning of the safe-harbor provisions for forward-looking statements contained in the Private Securities Litigation Reform Act of 1995, such as statements other than historical facts contained or incorporated by reference into this report. These forward-looking statements include statements with respect to the Corporation’s financial condition, results of operations, plans, objectives, future performance and business, including statements preceded by, followed by or that include the words “believes,” “expects,” or “anticipates,” references to estimates or similar expressions. Future filings by the Corporation with the Securities and Exchange Commission ("SEC"), and future statements other than historical facts contained in written material, press releases and oral statements issued by, or on behalf of the Corporation may also constitute forward-looking statements.
All forward-looking statements contained in this report or which may be contained in future statements made for or on behalf of the Corporation are based upon information available at the time the statement is made and the Corporation assumes no obligation to update any forward-looking statements, except as required by federal securities law. Forward-looking statements are subject to significant risks and uncertainties, and the Corporation’s actual results may differ materially from the expected results discussed in such forward-looking statements. Factors that might cause actual results to differ from the results discussed in forward-looking statements include, but are not limited to, the risk factors in Item 1A, Risk Factors, in the Corporation’s Annual Report on Form 10-K for the year ended December 31, 2016, and as may be described from time to time in the Corporation’s subsequent SEC filings.
Overview
The following discussion and analysis is presented to assist in the understanding and evaluation of the Corporation’s financial condition and results of operations. It is intended to complement the unaudited consolidated financial statements, footnotes, and supplemental financial data appearing elsewhere in this Quarterly Report on Form 10-Q and should be read in conjunction therewith. Management continually evaluates strategic acquisition opportunities and other various strategic alternatives that could involve the sale or acquisition of branches or other assets, or the consolidation or creation of subsidiaries.
Beginning in the third quarter of 2017, we have removed bank and corporate owned life insurance from other assets and included it as a separate line in the balance sheet. The Corporation has not purchased any new BOLI or COLI policies since 2008. Given the increasing age of the BOLI and COLI insureds, the Corporation expects the cash surrender value to decrease over time as more policy payouts occur. All prior periods have been restated to reflect the change in presentation.




Performance Summary
Average loans of $20.1$20.5 billion increased $1.1$1.0 billion, or 6%5%, from the first quarter nine months of the prior year,2016, and commercialresidential mortgage lending accounted for 53%89% of average loan growth. Average deposits of $21.5$21.8 billion increased $891 million,$1.1 billion, or 4%5%, from the first quarter nine months of the prior year. For the remainder of 2017, the Corporation expects mid-to-high single digit annual average loan growth and to maintain the loan to deposit ratio under 100%.
2016.
Net interest income of $180$554 million increased $8$27 million, or 5%, from the first quarternine months of the prior year.2016. Net interest margin was 2.84%2.83% compared to 2.81%2.80% in the first quarternine months of the prior year. For the remainder of 2017, the Corporation expects an improving net interest margin trend.2016.
Provision for credit losses of $9$26 million decreased $11$29 million, or 55%53%, from the first quarternine months of the prior year. For the remainder of 2017, the Corporation expects the provision for loan losses will change based on changes in risk grade or other indicators of credit quality, and loan volume.2016.
Noninterest income of $80$248 million was down 4%5% from the first quarternine months of 2016, and reflected less investment securities gains . For the remainder of 2017, the Corporation expects improving fee-based revenues, increasing tax credit investment activity, and decliningreflecting lower mortgage banking revenue.income, net, driven by portfolio loans sales during the first nine months of 2016.
Noninterest expense of $174$527 million was essentially flat fromfor the first quarter of the prior year. For the remaindernine months of 2017 was up 1% compared to the Corporation expects noninterest expense to be approximately 1% higher than the prior year; however, the Corporation also expects continued improvement in the efficiency ratio due to increasing revenue.first nine months 2016.
Table 1 Summary Results of Operations: Trends
 
($ in thousands, except per share data) 1Q17 4Q16 3Q16 2Q16 1Q16
YTD Sep 2017 YTD Sep 2016 3Q17 2Q17 1Q17 4Q16 3Q16
($ in Thousands, except per share data)
Net income $56,270
 $54,833
 $53,816
 $49,091
 $42,534
$179,254
 $145,441
 $65,001
 $57,983
 $56,270
 $54,833
 $53,816
Net income available to common equity 53,940
 52,485
 51,628
 46,922
 40,336
172,246
 138,886
 62,662
 55,644
 53,940
 52,485
 51,628
Earnings per common share - basic 0.36
 0.35
 0.34
 0.31
 0.27
1.13
 0.92
 0.41
 0.36
 0.36
 0.35
 0.34
Earnings per common share - diluted 0.35
 0.34
 0.34
 0.31
 0.27
1.11
 0.92
 0.41
 0.36
 0.35
 0.34
 0.34
Effective tax rate 27.31% 30.07% 30.52% 30.39% 30.51%27.99% 30.47% 30.55% 25.58% 27.31% 30.07% 30.52%






Income Statement Analysis


Net Interest Income


Table 2 Net Interest Income Analysis
Quarter endedNine Months Ended September 30,
March 31, 2017 December 31, 2016 March 31, 20162017 2016
Average
Balance
 
Interest
Income /
Expense
 
Average
Yield /
Rate
 Average
Balance
 Interest
Income /
Expense
 Average
Yield /
Rate
 
Average
Balance
 
Interest
Income /
Expense
 
Average
Yield /
Rate
Average
Balance
Interest
Income /
Expense
Average
Yield /
Rate
 Average
Balance
Interest
Income /
Expense
Average
Yield /
Rate
($ in Thousands)($ in Thousands)
ASSETS                 
Earning assets:                 
Loans:(1)(2)(3)
                 
Assets     
Earning assets     
Loans(1)(2)(3)
     
Commercial and business lending$7,199,481
 $60,680
 3.42% $7,406,810
 $61,501
 3.30% $7,121,061
 $57,291
 3.23%$7,280,302
$197,356
3.62% $7,391,735
$177,563
3.21%
Commercial real estate lending4,999,994
 45,135
 3.66% 4,914,643
 42,663
 3.45% 4,469,531
 38,989
 3.51%4,979,132
143,093
3.84% 4,660,538
120,758
3.46%
Total commercial12,199,475
 105,815
 3.52% 12,321,453
 104,164
 3.36% 11,590,592
 96,280
 3.34%12,259,434
340,449
3.71% 12,052,273
298,321
3.31%
Residential mortgage6,564,600
 53,306
 3.25% 6,317,769
 49,557
 3.14% 5,920,280
 47,748
 3.23%6,956,937
169,231
3.24% 6,102,383
145,384
3.18%
Retail1,308,650
 15,450
 4.74% 1,337,848
 16,679
 4.98% 1,411,958
 16,607
 4.71%1,284,607
48,039
4.99% 1,386,416
49,231
4.74%
Total loans20,072,725
 174,571
 3.51% 19,977,070
 170,400
 3.40% 18,922,830
 160,635
 3.41%20,500,978
557,719
3.63% 19,541,072
492,936
3.37%
Investment securities:                 
Investment securities     
Taxable4,830,421
 23,475
 1.94% 4,963,633
 22,418
 1.81% 5,034,072
 25,516
 2.03%4,819,580
71,295
1.97% 4,953,410
72,734
1.96%
Tax-exempt(1)
1,138,010
 12,438
 4.37% 1,140,175
 12,523
 4.39% 1,045,210
 11,980
 4.58%1,153,382
37,546
4.34% 1,076,603
36,513
4.52%
Other short-term investments298,158
 1,536
 2.08% 342,344
 1,380
 1.61% 270,261
 1,067
 1.59%378,052
5,581
1.97% 322,424
3,449
1.43%
Investments and other6,266,589
 37,449
 2.39% 6,446,152
 36,321
 2.25% 6,349,543
 38,563
 2.43%6,351,014
114,422
2.40% 6,352,437
112,696
2.37%
Total earning assets26,339,314
 $212,020
 3.24% 26,423,222
 $206,721
 3.12% 25,272,373
 $199,198
 3.16%26,851,992
$672,141
3.34% 25,893,509
$605,632
3.12%
Other assets, net2,441,013
     2,482,062
     2,426,475
    2,466,764
   2,478,574
  
Total assets$28,780,327
     $28,905,284
     $27,698,848
    $29,318,756
   $28,372,083
  
LIABILITIES AND STOCKHOLDERS’ EQUITY                 
Interest-bearing liabilities:                 
Interest-bearing deposits:                 
Liabilities and Stockholders' Equity     
Interest-bearing liabilities     
Interest-bearing deposits     
Savings$1,465,811
 $188
 0.05% $1,451,803
 $198
 0.05% $1,367,646
 $236
 0.07%$1,517,901
$671
0.05% $1,420,398
$662
0.06%
Interest-bearing demand4,251,357
 4,210
 0.40% 4,140,072
 3,248
 0.31% 3,220,409
 2,032
 0.25%4,290,862
16,483
0.51% 3,672,705
7,113
0.26%
Money market9,169,141
 9,388
 0.42% 9,296,364
 7,269
 0.31% 9,432,245
 6,444
 0.27%9,201,369
36,507
0.53% 9,071,388
19,709
0.29%
Time1,613,331
 3,138
 0.79% 1,560,145
 3,058
 0.78% 1,558,278
 3,054
 0.79%1,853,295
12,221
0.88% 1,550,693
9,078
0.78%
Total interest-bearing deposits16,499,640
 16,924
 0.42% 16,448,384
 13,773
 0.33% 15,578,578
 11,766
 0.30%16,863,427
65,882
0.52% 15,715,184
36,562
0.31%
Federal funds purchased and securities sold under agreements to repurchase495,311
 515
 0.42% 549,738
 314
 0.23% 559,459
 296
 0.21%460,672
2,107
0.61% 629,976
1,000
0.21%
Other short-term funding683,306
 1,080
 0.64% 491,800
 458
 0.37% 777,898
 515
 0.27%646,266
3,946
0.82% 769,049
1,656
0.29%
Total short-term funding1,178,617
 1,595
 0.55% 1,041,538
 772
 0.29% 1,337,357
 811
 0.24%1,106,938
6,053
0.73% 1,399,025
2,656
0.25%
Long-term funding2,761,850
 7,996
 1.17% 2,761,695
 6,875
 0.99% 2,582,538
 9,505
 1.47%2,979,712
30,133
1.35% 2,964,807
23,657
1.06%
Total short and long-term funding3,940,467
 9,591
 0.98% 3,803,233
 7,647
 0.80% 3,919,895
 10,316
 1.05%4,086,650
36,186
1.18% 4,363,832
26,313
0.80%
Total interest-bearing liabilities20,440,107
 $26,515
 0.52% 20,251,617
 $21,420
 0.42% 19,498,473
 $22,082
 0.45%20,950,077
$102,068
0.65% 20,079,016
$62,875
0.42%
Noninterest-bearing demand deposits4,966,082
     5,294,078
     4,996,596
    4,950,252
   5,043,231
  
Other liabilities250,747
     274,829
     233,029
    260,409
   247,624
  
Stockholders’ equity3,123,391
     3,084,760
     2,970,750
    3,158,018
   3,002,212
  
Total liabilities and stockholders’ equity$28,780,327
     $28,905,284
     $27,698,848
    $29,318,756
   $28,372,083
  
Interest rate spread    2.72%     2.70%     2.71% 2.69%  2.70%
Net free funds    0.12%     0.10%     0.10% 0.14%  0.10%
Fully tax-equivalent net interest income and net interest margin  $185,505
 2.84%   $185,301
 2.80%   $177,116
 2.81% $570,073
2.83%  $542,757
2.80%
Fully tax-equivalent adjustment  5,231
     5,266
     5,129
   15,858
   15,519
 
Net interest income  $180,274
     $180,035
     $171,987
   $554,215
   $527,238
 
(1)The yield on tax-exempt loans and securities is computed on a fully tax-equivalent basis using a tax rate of 35% for all periods presented and is net of the effects of certain disallowed interest deductions.
(2)Nonaccrual loans and loans held for sale have been included in the average balances.
(3)Interest income includes net loan fees.





Table 2 Net Interest Income Analysis Continued
 Three Months Ended
 September 30, 2017 June 30, 2017 September 30, 2016
 
Average
Balance
Interest
Income /
Expense
Average
Yield /
Rate
 Average
Balance
Interest
Income /
Expense
Average
Yield /
Rate
 
Average
Balance
Interest
Income /
Expense
Average
Yield /
Rate
 ($ in Thousands)
Assets           
Earning assets           
Loans(1)(2)(3)
           
Commercial and business lending$7,318,594
$71,169
3.86% $7,321,523
$65,507
3.59% $7,577,470
$61,184
3.21%
Commercial real estate lending4,973,436
50,396
4.02% 4,964,257
47,562
3.84% 4,855,827
41,600
3.41%
Total commercial12,292,030
121,565
3.93% 12,285,780
113,069
3.69% 12,433,297
102,784
3.29%
Residential mortgage7,339,827
59,828
3.26% 6,957,865
56,097
3.23% 6,255,264
49,254
3.15%
Retail1,267,280
16,541
5.21% 1,278,345
16,048
5.03% 1,364,215
16,246
4.76%
Total loans20,899,137
197,934
3.77% 20,521,990
185,214
3.62% 20,052,776
168,284
3.35%
Investment securities           
Taxable4,846,653
24,162
1.97% 4,781,488
23,658
1.98% 4,859,750
22,948
1.89%
Tax-exempt(1)
1,177,962
12,650
4.30% 1,143,736
12,459
4.36% 1,119,873
12,456
4.45%
Other short-term investments536,043
2,492
1.85% 297,341
1,553
2.09% 401,764
1,064
1.06%
Investments and other6,560,658
39,304
2.40% 6,222,565
37,670
2.42% 6,381,387
36,468
2.29%
Total earning assets27,459,795
$237,238
3.44% 26,744,555
$222,884
3.34% 26,434,163
$204,752
3.09%
Other assets, net2,504,232
   2,454,351
   2,534,209
  
Total assets$29,964,027
   $29,198,906
   $28,968,372
  
Liabilities and Stockholders' Equity           
Interest-bearing liabilities           
Interest-bearing deposits           
Savings$1,545,884
$282
0.06% $1,541,129
$201
0.05% $1,448,223
$198
0.05%
Interest-bearing demand4,347,550
6,767
0.62% 4,272,620
5,506
0.52% 4,151,708
2,937
0.28%
Money market9,367,907
15,357
0.65% 9,064,874
11,763
0.52% 9,088,943
6,956
0.30%
Time2,187,986
5,372
0.97% 1,752,255
3,710
0.85% 1,553,349
3,027
0.78%
Total interest-bearing deposits17,449,327
27,778
0.63% 16,630,878
21,180
0.51% 16,242,223
13,118
0.32%
Federal funds purchased and securities sold under agreements to repurchase398,200
768
0.76% 489,571
824
0.67% 655,825
326
0.20%
Other short-term funding416,124
1,039
0.99% 842,305
1,827
0.87% 324,623
296
0.36%
Total short-term funding814,324
1,807
0.88% 1,331,876
2,651
0.80% 980,448
622
0.25%
Long-term funding3,239,687
12,187
1.50% 2,932,348
9,950
1.36% 3,256,099
7,229
0.89%
Total short and long-term funding4,054,011
13,994
1.37% 4,264,224
12,601
1.18% 4,236,547
7,851
0.74%
Total interest-bearing liabilities21,503,338
$41,772
0.77% 20,895,102
$33,781
0.65% 20,478,770
$20,969
0.41%
Noninterest-bearing demand deposits4,992,118
   4,892,271
   5,161,802
  
Other liabilities283,724
   246,395
   281,442
  
Stockholders’ equity3,184,847
   3,165,138
   3,046,358
  
Total liabilities and stockholders’ equity$29,964,027
   $29,198,906
   $28,968,372
  
Interest rate spread  2.67%   2.69%   2.68%
Net free funds  0.17%   0.14%   0.09%
Fully tax-equivalent net interest income and net interest margin $195,466
2.84%  $189,103
2.83%  $183,783
2.77%
Fully tax-equivalent adjustment 5,344
   5,284
   5,249
 
Net interest income $190,122
   $183,819
   $178,534
 
(1)The yield on tax-exempt loans and securities is computed on a fully tax-equivalent basis using a tax rate of 35% for all periods presented and is net of the effects of certain disallowed interest deductions.
(2)Nonaccrual loans and loans held for sale have been included in the average balances.
(3)Interest income includes net loan fees.






Notable Contributions to the Change in Net Interest Income


Net interest income in the consolidated statements of income (which excludes the fully tax-equivalent adjustment) was $180$554 million for the first quarternine months of 2017 compared to $172$527 million for the first quarternine months of 2016. See sections “InterestInterest Rate Risk”Risk and “QuantitativeQuantitative and Qualitative Disclosures about Market Risk, for a discussion of interest rate risk and market risk.


Fully tax-equivalent net interest income of $186$570 million for the first quarternine months of 2017 was $8$27 million higher than the first quarternine months of 2016.


Average earning assets of $26.3$26.9 billion for the first quarternine months of 2017 were $1.1 billion,$958 million, or 4%, higher than the first quarternine months of 2016. Average loans increased $1.1 billion,$960 million, or 6%5%, primarily due to a $644an $855 million increase in residential mortgage loans and a $530$319 million increase in commercial real estate lending. Average securitieslending, partially offset by decreases in other retail loans and short-term investments declined $83 million, or 1% from the first quarter of 2016.commercial and business lending.


Average interest-bearing liabilities of $20.4$21.0 billion for the first quarternine months of 2017 were up $942$871 million, or 5%4%, versus the first quarternine months of 2016. On average, interest-bearing deposits increased $921$1.1 billion and short-term funding decreased $292 million and noninterest-bearing demand deposits (a principal componentto $1.1 billion from the first nine months of net free funds) decreased by $31 million. On average, short and long-term funding increased $21 million from first quarter of 2016, including a $179 million increase in long-term funding, partially offset by a $159 million decrease in short-term funding.2016.


The net interest margin for the first quarternine months of 2017 was 2.84%2.83%, compared to 2.81%2.80% for the first quarternine months of 2016. The 3 basis pointsincrease was primarily driven by a 4 basis-point ("bp") increase in net interest margin was attributable to a 1 bp increase in interest rate spread (the net of a 8 bp increaseexpansion in the yield on earning assets and a 7 bp increase in the cost of interest-bearing liabilities), and a 2 bp increase in net free funds.funds benefit as the value of noninterest-bearing deposits increases as a result of Federal Funds rate increases.


For the first quarternine months of 2017, loan yields increased 10 bp26 bps to 3.51% from3.63% compared to the first quarternine months of 2016. The yield on investment securities and other short-term investments decreased 4increased 3 bp to 2.39%, and was impacted by the reinvestment of cash flows in a low interest rate environment.2.40%.


The cost of interest-bearing liabilities was 0.52%0.65% for the first quarternine months of 2017, 7 bpwhich was 23 bps higher than the first quarternine months of 2016. The increase was primarily due to a 1221 bp increase in the cost of average interest-bearing deposits (to 0.42%0.52%) and a 3148 bp increase in the cost of short-term funding (to 0.55%0.73%), both primarily due to increases in the December 2016 Federal Reserve interest rate increase; partially offset by a 30 bp decrease in the cost of long-term funding (to 1.17%), primarily due to the early redemption of $430 million of senior notes in February 2016.rate.
The Federal Reserve increased the targeted federal funds rate on March 15,June 14, 2017, to a range of 0.75%-1.00%1.00% to 1.25% from 0.50%-0.75%0.75% to 1.00%. The Federal Reserve has indicated that it expects gradual increases in the federal funds rate, however,Federal Funds rate. However, the timing and magnitude of any such increases are uncertain and will depend on domestic and global economic conditions.
Provision for Credit Losses
The provision for credit losses (which includes the provision for loan losses and the provision for unfunded commitments) for the threenine months ended March 31,September 30, 2017 was $9$26 million, compared to $20$55 million for the threenine months ended March 31,September 30, 2016. Net charge offs were $6$29 million (representing 0.11%0.19% of average loans) for the threenine months ended March 31,September 30, 2017, compared to $17$56 million (representing 0.36%0.38% of average loans) for the threenine months ended March 31,September 30, 2016. The ratio of the allowance for loan losses to total loans was 1.40% and 1.44% at March 31,1.32% for September 30, 2017 and 2016, respectively.1.36% for September 30, 2016.
The provision for credit losses is predominantly a function of the Corporation’s reserving methodology and judgments as to other qualitative and quantitative factors used to determine the appropriate level of the allowance for loan losses and the allowance for unfunded commitments, which focuses on changes in the size and character of the loan portfolio, changes in levels of impaired and other nonaccrual loans, historical losses and delinquencies in each portfolio category, the level of loans sold or transferred to held for sale, the risk inherent in specific loans, concentrations of loans to specific borrowers or industries, existing economic conditions, the fair value of underlying collateral, and other factors which could affect potential credit losses. See additional discussion under sections, “Loans,” “CreditLoans, Credit Risk,” “Nonperforming Nonperforming Assets, and “AllowanceAllowance for Credit Losses."




Noninterest Income
Table 3 Noninterest Income
 1Q17 Change vs YTD % Change 3Q17 Change vs
($ in Thousands)1Q174Q163Q162Q161Q164Q161Q16
($ in Thousands, except AUM)YTD Sep 2017YTD Sep 2016YTD % Change3Q172Q171Q174Q163Q162Q173Q16
Trust service fees$11,935
$12,211
$11,700
$11,509
$11,447
(2)%4 %$37,066
$34,656
$12,785
$12,346
$11,935
$12,211
$11,700
4 %9 %
Service charges on deposit accounts16,356
16,447
17,445
16,444
16,273
(1)%1 %48,654
50,162
(3)%16,268
16,030
16,356
16,447
17,445
1 %(7)%
Card-based and other nondeposit fees12,465
12,592
12,777
12,717
11,991
(1)%4 %38,848
37,485
4 %12,619
13,764
12,465
12,592
12,777
(8)%(1)%
Insurance commissions21,620
17,977
19,431
22,005
21,382
20 %1 %62,288
62,818
(1)%19,815
20,853
21,620
17,977
19,431
(5)%2 %
Brokerage and annuity commissions4,333
4,188
4,155
4,098
3,794
3 %14 %13,071
12,047
9 %4,392
4,346
4,333
4,188
4,155
1 %6 %
Subtotal ("fee-based revenue")66,709
63,415
65,508
66,773
64,887
5 %3 %199,927
197,168
1 %65,879
67,339
66,709
63,415
65,508
(2)%1 %
Mortgage banking income7,273
12,058
21,903
8,300
7,987
(40)%(9)%24,112
38,190
(37)%9,147
7,692
7,273
12,058
21,903
19 %(58)%
Mortgage servicing rights expense2,694
499
3,612
4,233
3,783
N/M
(29)%7,921
11,628
(32)%2,562
2,665
2,694
499
3,612
(4)%(29)%
Mortgage banking, net4,579
11,559
18,291
4,067
4,204
(60)%9 %16,191
26,562
(39)%6,585
5,027
4,579
11,559
18,291
31 %(64)%
Capital market fees, net3,883
7,716
7,012
3,793
3,538
(50)%10 %12,535
14,343
(13)%4,610
4,042
3,883
7,716
7,012
14 %(34)%
Bank owned life insurance income2,615
3,338
3,290
2,973
4,770
(22)%(45)%
Bank and corporate owned life insurance income13,094
11,033
19 %6,580
3,899
2,615
3,338
3,290
69 %100 %
Other2,279
2,379
2,180
1,789
2,171
(4)%5 %6,746
6,140
10 %2,254
2,213
2,279
2,379
2,180
2 %3 %
Subtotal (“fee income”)80,065
88,407
96,281
79,395
79,570
(9)%1 %
Subtotal248,493
255,246
(3)%85,908
82,520
80,065
88,407
96,281
4 %(11)%
Asset gains (losses), net(234)767
(1,034)(343)524
(131)%(145)%(716)(853)(16)%(16)(466)(234)767
(1,034)(97)%(98)%
Investment securities gains (losses), net
3,115
(13)3,116
3,098
(100)%(100)%359
6,201
(94)%3
356

3,115
(13)(99)%(123)%
Total noninterest income$79,831
$92,289
$95,234
$82,168
$83,192
(13)%(4)%$248,136
$260,594
(5)%$85,895
$82,410
$79,831
$92,289
$95,234
4 %(10)%
Mortgage loans originated for sale during period$101,280
$287,194
$466,092
$323,989
$193,849
(65)%(48)%$466,135
$983,930
(53)%$245,851
$119,004
$101,280
$287,194
$466,092
107 %(47)%
Mortgage loan settlements during period$196,578
$395,382
$655,298
$270,216
$221,764
(50)%(11)%$551,696
$1,147,278
(52)%$187,568
$167,550
$196,578
$395,382
$655,298
12 %(71)%
Trust assets under management, at market value$8,715,965
$8,301,564
$8,178,839
$7,944,187
$7,843,512
5 %11 %
Fee income ratio*31%32%35%31%31% 
N/M = Not meaningful  
* Fee income ratio is fee income, per the above table, divided by total revenue (defined as net interest income plus noninterest income). 
Trust assets under management ("AUM"), at market value(a)
$9,243
$8,179
13 %$9,243
$8,997
$8,716
$8,302
$8,179
3 %13 %
(a)AUM $ in millions
Notable Contributions to the Change in Noninterest Income
Fee-based revenue was $67$200 million, an increase of $2$3 million (3%(1%) compared to the first quarternine months of 2016. AllWithin fee based revenue, itemstrust service fees increased slightly with the most notable in brokerage and annuity commissions which increased 14% from first quarter of 2016$2 million, primarily due to a stronger market backdrop.an increase in assets under management.
Net mortgage banking income for the first nine months of 2017 was $5$16 million, a slight increasedown $10 million (39%) from the first quarter of 2016. Gross mortgage banking income decreased for the first quarter of 2017 compared to the first quarternine months of 2016, primarily due to a $1portfolio loan sales during the third quarter of 2016.
Capital market fees, net, was $13 million reduction infor the fair valuefirst nine months of mortgage derivatives.2017, down $2 million (13%), driven primarily by decreased syndication fee revenue.
Bank and corporate owned life insurance income ("BOLI") was $3$13 million a decreasefor the first nine months of 2017, up $2 million (45%) compared tofrom the first quarternine months of 2016, primarily due to proceeds from BOLIdriven by increased policy claims during the first quarter of 2016.payouts.
Net investment securities gains were down $3$6 million for the first quarternine months of 2017, due to $6 million gain on the sale of FNMA and FHLMC securities and reinvestment into GNMA mortgage-related securities induring the first quarternine months of 2016.





Noninterest Expense
Table 4 Noninterest Expense
 1Q17 Change vs   3Q17 Change vs
($ in Thousands)1Q174Q163Q162Q161Q164Q161Q16YTD Sep 2017YTD Sep 2016YTD % Change3Q172Q171Q174Q163Q162Q173Q16
Personnel expense$104,419
$107,491
$103,819
$102,129
$101,398
(3)%3 %$314,954
$307,346
2 %$105,852
$104,683
$104,419
$107,491
$103,819
1 %2 %
Occupancy15,219
13,690
15,362
13,215
13,802
11 %10 %40,345
42,379
(5)%12,294
12,832
15,219
13,690
15,362
(4)%(20)%
Equipment5,485
5,328
5,319
5,396
5,446
3 %1 %15,951
16,161
(1)%5,232
5,234
5,485
5,328
5,319
 %(2)%
Technology14,420
14,413
14,173
14,450
14,264
 %1 %45,126
42,887
5 %15,233
15,473
14,420
14,413
14,173
(2)%7 %
Business development and advertising5,835
6,298
5,251
6,591
8,211
(7)%(29)%20,751
20,053
3 %7,764
7,152
5,835
6,298
5,251
9 %48 %
Other intangible amortization513
525
525
539
504
(2)%2 %1,459
1,568
(7)%450
496
513
525
525
(9)%(14)%
Loan expense2,620
3,443
3,535
3,442
3,221
(24)%(19)%8,924
10,198
(12)%3,330
2,974
2,620
3,443
3,535
12 %(6)%
Legal and professional fees4,166
5,184
4,804
4,856
5,025
(20)%(17)%16,125
14,685
10 %6,248
5,711
4,166
5,184
4,804
9 %30 %
Foreclosure / OREO expense1,505
677
960
1,330
1,877
122 %(20)%3,593
4,167
(14)%906
1,182
1,505
677
960
(23)%(6)%
FDIC expense8,000
9,250
9,000
8,750
7,750
(14)%3 %23,800
25,500
(7)%7,800
8,000
8,000
9,250
9,000
(3)%(13)%
Other11,509
12,616
12,566
13,662
12,473
(9)%(8)%
Other expense36,406
38,701
(6)%12,318
12,579
11,509
12,616
12,566
(2)%(2)%
Total noninterest expense$173,691
$178,915
$175,314
$174,360
$173,971
(3)% %$527,434
$523,645
1 %$177,427
$176,316
$173,691
$178,915
$175,314
1 %1 %
Personnel expense to total noninterest expense60%60%59%59%58% 60%59% 60%59%60%60%59% 
Average full-time equivalent employees4,3704,4394,4774,4154,374 4,3684,422 4,3844,3524,3704,4394,477 
Notable Contributions to the Change in Noninterest Expense
Personnel expense (which includes salary-related expenses and fringe benefit expenses) was $104$315 million for the first quarternine months of 2017, up $3$8 million (3%(2%) from the first quarternine months of 2016. The increase was2016, primarily due to a $1 million increase in social security tax resulting from increased activity in stock options exercised, along with a less than $1 million increase in health insurance costs.cost and incentive plan estimates.
Nonpersonnel noninterest expense on a combined basis were $69was $212 million, down $3$4 million (5%(2%) compared to the first quarternine months of 2016. Occupancy expense decreased $2 million (5%) in the first nine months of 2017, primarily driven by ongoing internal consolidation efforts. FDIC expense was up $1$24 million (10%for the first nine months of 2017, down $2 million (7%) from the first quarternine months of 2016, primarily due to higher lease terminations and adjustments incurred indriven by risk-weighted asset strategies deployed by the first quarter of 2017. Business development and advertising was down $2 million from the first quarter of 2016 due to a shift in our advertising strategy from television to digital advertising.Corporation.
Income Taxes


The Corporation recognized income tax expense of $21$70 million for the threenine months ended March 31,September 30, 2017, compared to income tax expense of $19$64 million for threethe nine months ended March 31,September 30, 2016. The increasechange in income tax expense was due primarily to thean increase in pretax income between the periods, partially offset by a $3 million tax benefit on stock-based compensation booked during the first quarter of 2017 under the new accounting standard adopted by the Corporation in the fourth quarter of 2016.pre-tax book income. The effective tax rate was 27.31%27.99% for the first threenine months of 2017, compared to an effective tax rate of 30.51%30.47% for the first threenine months of 2016.2016, reflecting a change in accounting standards related to stock compensation and a recent favorable tax court ruling.


Income tax expense recorded in the consolidated statements of income involves the interpretation and application of certain accounting pronouncements and federal and state tax laws and regulations, and is, therefore, considered a critical accounting policy. The Corporation is subject to examination by various taxing authorities. Examination by taxing authorities may impact the amount of tax expense and / or reserve for uncertainty in income taxes if their interpretations differ from those of management, based on their judgments about information available to them at the time of their examinations. See section “CriticalCritical Accounting Policies," in the Corporation’s 2016 Annual Report on Form 10-K for additional information on income taxes.


4750







Balance Sheet Analysis
At March 31,September 30, 2017, total assets were $29.1$30.1 billion, minimally changedup $925 million (3%) from December 31, 2016 and up $931$912 million (3%) from March 31,September 30, 2016.
Loans of $20.1$20.9 billion at March 31,September 30, 2017 were minimally changed from December 31, 2016 and were up $920 million (5%) from March 31, 2016. See section "Loans" for additional information on loans.
Investment securities were $5.9 billion at March 31, 2017, down slightly (2%) from year-end 2016 and down $227$877 million (4%) from March 31, 2016.
At March 31, 2017, total deposits of $21.8 billion were relatively unchanged from December 31, 2016 and were up $1.1 billion (6%(5%) from March 31,September 30, 2016. See section "DepositsLoans for additional information on loans.
At September 30, 2017, total deposits of $22.3 billion were up $445 million (2%) from December 31, 2016 and were up $586 million (3%) from September 30, 2016. See section Deposits and Customer Funding"Funding for additional information on deposits.
Short and long-term funding of $3.8$4.2 billion at March 31, 2017 were relatively unchanged from year-end 2016 and down $436increased $358 million (10%) from March 31, 2016.
Loans
Table 5 Period End Loan Composition
  
 March 31, 2017 December 31, 2016 September 30, 2016 June 30, 2016 March 31, 2016
 Amount 
% of
Total
 Amount 
% of
Total
 Amount 
% of
Total
 Amount 
% of
Total
 Amount 
% of
Total
 ($ in Thousands)
Commercial and industrial$6,300,646
 31% $6,489,014
 32% $6,721,557
 34% $6,701,986
 34% $6,511,648
 34%
Commercial real estate — owner occupied878,391
 4% 897,724
 5% 892,678
 4% 921,736
 5% 917,285
 5%
Commercial and business lending7,179,037
 35% 7,386,738
 37% 7,614,235
 38% 7,623,722
 39% 7,428,933
 39%
Commercial real estate — investor3,415,355
 17% 3,574,732
 18% 3,530,370
 18% 3,495,791
 18% 3,276,733
 17%
Real estate construction1,553,205
 8% 1,432,497
 7% 1,314,431
 7% 1,285,573
 6% 1,184,398
 6%
Commercial real estate lending4,968,560
 25% 5,007,229
 25% 4,844,801
 25% 4,781,364
 24% 4,461,131
 23%
Total commercial12,147,597
 60% 12,393,967
 62% 12,459,036
 63% 12,405,086
 63% 11,890,064
 62%
Residential mortgage6,715,282
 33% 6,332,327
 31% 6,034,166
 30% 6,035,720
 30% 5,944,457
 31%
Home equity revolving lines of credit823,594
 4% 840,872
 4% 851,382
 4% 861,311
 4% 867,860
 4%
Home equity loans junior liens88,375
 1% 93,571
 1% 100,212
 1% 107,460
 1% 115,134
 1%
Home equity911,969
 5% 934,443
 5% 951,594
 5% 968,771
 5% 982,994
 5%
Other consumer372,835
 2% 393,979
 2% 399,209
 2% 405,709
 2% 409,725
 2%
Total consumer8,000,086
 40% 7,660,749
 38% 7,384,969
 37% 7,410,200
 37% 7,337,176
 38%
Total loans$20,147,683
 100% $20,054,716
 100% $19,844,005
 100% $19,815,286
 100% $19,227,240
 100%
Commercial real estate - investor and Real estate construction loan detail:                   
Farmland$1,487
 % $1,613
 % $6,530
 % $6,181
 % $5,557
 %
Multi-family967,474
 28% 1,027,541
 29% 1,030,976
 29% 1,076,549
 31% 974,051
 30%
Non-owner occupied2,446,394
 72% 2,545,578
 71% 2,492,864
 71% 2,413,061
 69% 2,297,125
 70%
Commercial real estate — investor$3,415,355
 100% $3,574,732
 100% $3,530,370
 100% $3,495,791
 100% $3,276,733
 100%
1-4 family construction$389,902
 25% $358,398
 25% $330,250
 25% $353,244
 27% $320,984
 27%
All other construction1,163,303
 75% 1,074,099
 75% 984,181
 75% 932,329
 73% 863,414
 73%
Real estate construction$1,553,205
 100% $1,432,497
 100% $1,314,431
 100% $1,285,573
 100% $1,184,398
 100%
Commercial and business lending was $7.2 billion and represented 35% of total loans at March 31, 2017, a decrease of $208 million (3%(9%) from December 31, 2016 and a decrease of $250increased $210 million (3%(5%) from March 31,September 30, 2016.
Commercial real estate lending totaled $5.0 billion at March 31, 2017 and represented 25% of total loans, a decrease of $39 million (1%) from December 31, 2016 and an increase of $507 million (11%) from March 31, 2016.Loans

Table 5 Period End Loan Composition

Consumer loans were $8.0 billion and represented 40% of total loans at March 31, 2017, an increase of $339 million (4%) from December 31, 2016 and an increase of $663 million (9%) from March 31, 2016.
  
 September 30, 2017 June 30, 2017 March 31, 2017 December 31, 2016 September 30, 2016
 Amount 
% of
Total
 Amount 
% of
Total
 Amount 
% of
Total
 Amount 
% of
Total
 Amount 
% of
Total
 ($ in Thousands)
Commercial and industrial$6,534,660
 31% $6,571,000
 32% $6,300,646
 31% $6,489,014
 32% $6,721,557
 34%
Commercial real estate — owner occupied827,064
 4% 845,336
 4% 878,391
 4% 897,724
 5% 892,678
 4%
Commercial and business lending7,361,724
 35% 7,416,336
 36% 7,179,037
 35% 7,386,738
 37% 7,614,235
 38%
Commercial real estate — investor3,345,536
 16% 3,329,585
 16% 3,415,355
 17% 3,574,732
 18% 3,530,370
 18%
Real estate construction1,552,135
 8% 1,651,805
 8% 1,553,205
 8% 1,432,497
 7% 1,314,431
 7%
Commercial real estate lending4,897,671
 24% 4,981,390
 24% 4,968,560
 25% 5,007,229
 25% 4,844,801
 25%
Total commercial12,259,395
 59% 12,397,726
 60% 12,147,597
 60% 12,393,967
 62% 12,459,036
 63%
Residential mortgage7,408,471
 35% 7,115,457
 34% 6,715,282
 33% 6,332,327
 31% 6,034,166
 30%
Home equity890,130
 4% 897,111
 4% 911,969
 5% 934,443
 5% 951,594
 5%
Other consumer373,464
 2% 372,775
 2% 372,835
 2% 393,979
 2% 399,209
 2%
Total consumer8,672,065
 41% 8,385,343
 40% 8,000,086
 40% 7,660,749
 38% 7,384,969
 37%
Total loans$20,931,460
 100% $20,783,069
 100% $20,147,683
 100% $20,054,716
 100% $19,844,005
 100%


The Corporation has long-term guidelines relative to the proportion of Commercialcommercial and Business, Commercial Real Estate,business, commercial real estate, and Consumer loans within the overall loan portfolio, with each targeted to represent 30-40% of the overall loan portfolio. The targeted long-term guidelines were unchanged during 2016 and the first threenine months of 2017. Furthermore, certain sub-asset classes within the respective portfolios were further defined and dollar limitations were placed on these sub-portfolios. These guidelines and limits are reviewed quarterly and approved annually by the Enterprise Risk Committee of the Corporation’s Board of Directors. These guidelines and limits are designed to create balance and diversification within the loan portfolios.
Credit Risk
An active credit risk management process is used for commercial loans to ensure that sound and consistent credit decisions are made. Credit risk is controlled by detailed underwriting procedures, comprehensive loan administration, and periodic review of borrowers’ outstanding loans and commitments. Borrower relationships are formally reviewed and graded on an ongoing basis for early identification of potential problems. Further analysis by customer, industry, and geographic location are performed to monitor trends, financial performance, and concentrations. See Note 7 Loans, for additional information on managing overall credit quality.
The loan portfolio is widely diversified by types of borrowers, industry groups, and market areas within our branch footprint. Significant loan concentrations are considered to exist when there are amounts loaned to numerous borrowers engaged in similar activities that would cause them to be similarly impacted by economic or other conditions. At March 31,September 30, 2017, no significant concentrations existed in the Corporation’s portfolio in excess of 10% of total loans.


Commercial and business lending: The commercial and business lending classification primarily includes commercial loans to large corporations, middle market companies and small businesses and lease financing. At March 31,September 30, 2017, the largest industry group within the commercial and business lending category was the manufacturing sector, which represented 6% of total loans and 18%16% of the total commercial and business lending portfolio. The next largest industry groupsgroup within the commercial and business lending category included the power and utilities portfolio, which represented 5% of total loans and represented 14% of the total commercial and business lending portfolio at March 31,September 30, 2017. The remaining commercial and business lending portfolio is spread over a diverse range of industries, none of which exceed 5% of total loans. The credit risk related to commercial loans is largely influenced by general economic conditions and the resulting impact on a borrower’s operations or on the value of underlying collateral, if any. Currently, a higher risk segment of the commercial and business lending portfolio is loans to borrowers supporting oil and gas exploration and production, which are further discussed under “Oiloil and gas lending”lending below.
Oil and gas lending: The Corporation provides reserve based loans to oil and gas exploration and production firms. The Corporation's oil and gas lending team is based in Houston and focuses on serving the funding needs of small and mid-sized companies in the upstream oil and gas business. The oil and gas loans are generally first lien, reserve-based, and borrowing base dependent lines of credit. A small portion of the portfolio is in a second lien position to which the Corporation also holds the first lien position. The portfolio is diversified across all major U.S. geographic basins. The portfolio is diversediversified by product line with approximately 50%58% in oil and 50%42% in gas at March 31,September 30, 2017. Borrowing base re-determinations for the portfolio are completed at least twice a year and are based on detailed engineering reports and discounted cash flow analysis.

The following table summarizes information about the Corporation's oil and gas loan portfolio.
Table 6 Oil and Gas Loan Portfolio
March 31, 2017 December 31, 2016 September 30, 2016 June 30, 2016 March 31, 2016September 30, 2017 June 30, 2017 March 31, 2017 December 31, 2016 September 30, 2016
($ in Millions)($ in Millions)
Pass$405
 $426
 $351
 $387
 $402
$446
 $411
 $405
 $426
 $351
Special mention8
 20
 47
 64
 75

 39
 8
 20
 47
Potential problem78
 75
 171
 176
 150
39
 37
 78
 75
 171
Nonaccrual134
 147
 127
 129
 129
92
 114
 134
 147
 127
Total Oil and gas related loans$625
 $668
 $696
 $756
 $756
Total oil and gas related loans$577
 $601
 $625
 $668
 $696
Quarter net charge offs$6
 $6
 $22
 $19
 $13
$8
 $12
 $6
 $6
 $22
Oil and gas related allowance$42
 $38
 $38
 $42
 $49
$30
 $33
 $42
 $38
 $38
Oil and gas related allowance ratio6.7% 5.7% 5.5% 5.6% 6.5%5.2% 5.4% 6.7% 5.7% 5.5%


The Corporation proactively risk grades and reserves accordingly against the oil and gas loan portfolio. Lower market pricing and increased market volatility has led to downward migration within the portfolio. At March 31,September 30, 2017, nonaccrual oil and gas related loans totaled approximately $134$92 million, representing 21%16% of the oil and gas loan portfolio, a decrease of $13$55 million from December 31, 2016.
Commercial real estate - investor: Commercial real estate-investor is comprised of loans secured by various non-owner occupied or investor income producing property types. At March 31,September 30, 2017, the largest property type exposures within the commercial real estate-investor portfolio were loans secured by retailmulti-family properties, which represented 5% of total loans and 29% of the total commercial real estate-investor portfolio and loans secured by multi-familyretail properties which represented 5% of total loans and 28% of the total commercial real estate-investor portfolio. The remaining commercial real estate-investor portfolio is spread over various other property types, none of which exceed 5% of total loans. Of the exposure in the Corporation's commercial real estate retailer portfolio, our largest tenant exposure is approximately 5%, spread over six loans, to a national investment grade grocer. Credit risk is managed in a similar manner to commercial and business lending by employing sound underwriting guidelines, lending primarily to borrowers in local markets and businesses, periodically evaluating the underlying collateral, and formally reviewing the borrower’s financial soundness and relationship on an ongoing basis.
Real estate construction: Real estate construction loans are primarily short-term or interim loans that provide financing for the acquisition or development of commercial income properties, multi-family projects or residential development, both single family and condominium. Real estate construction loans are made to developers and project managers who are generally well known to the Corporation and have prior successful project experience. The credit risk associated with real estate construction loans is generally confined to specific geographic areas but is also influenced by general economic conditions. The Corporation controls the credit risk on these types of loans by making loans in familiar markets to developers, reviewing the merits of individual projects, controlling loan structure, and monitoring project progress and construction advances.
The Corporation’s current lending standards for commercial real estate and real estate construction lending are determined by property type and specifically address many criteria, including: maximum loan amounts, maximum loan-to-value (“LTV”), requirements for pre-leasing and / or presales, minimum borrower equity, and maximum loan to cost. Currently, the maximum


standard for LTV is 80%, with lower limits established for certain higher risk types, such as raw land whichthat has a 50% LTV maximum. The Corporation’s LTV guidelines are in compliance with regulatory supervisory limits. In most cases, for real estate construction loans, the loan amounts include interest reserves, which are built into the loans and sized to fund loan payments through construction and lease up and / or sell out.
Table 7 Commercial Loan Distribution and Interest Rate Sensitivity
  
March 31, 2017
Within 1 Year (a)
 1-5 Years After 5 Years Total % of Total
September 30, 2017
Within 1 Year(a)
 1-5 Years After 5 Years Total % of Total
($ in Thousands)($ in Thousands)
Commercial and industrial$5,456,570
 $596,005
 $248,071
 $6,300,646
 52%$5,860,886
 $469,480
 $204,294
 $6,534,660
 53%
Commercial real estate — investor2,286,974
 1,055,155
 73,226
 3,415,355
 28%2,457,622
 827,405
 60,509
 3,345,536
 27%
Commercial real estate — owner occupied408,034
 346,811
 123,546
 878,391
 7%409,936
 307,477
 109,651
 827,064
 7%
Real estate construction1,371,372
 175,279
 6,554
 1,553,205
 13%1,428,540
 94,874
 28,721
 1,552,135
 13%
Total$9,522,950
 $2,173,250
 $451,397
 $12,147,597
 100%$10,156,984
 $1,699,236
 $403,175
 $12,259,395
 100%
Fixed rate$4,293,252
 $817,117
 $296,386
 $5,406,755
 45%$4,357,609
 $743,284
 $310,221
 $5,411,114
 44%
Floating or adjustable rate5,229,698
 1,356,133
 155,011
 6,740,842
 55%5,799,375
 955,952
 92,954
 6,848,281
 56%
Total$9,522,950
 $2,173,250
 $451,397
 $12,147,597
 100%$10,156,984
 $1,699,236
 $403,175
 $12,259,395
 100%
Percent by maturity distribution78% 18% 4% 100%  83% 14% 3% 100%  
(a)Demand loans, past due loans, and overdrafts are reported in the “Within 1 Year” category.


The total commercial loans that were floating or adjustable rate was $6.7$6.8 billion (55%(56%) at March 31,September 30, 2017. Including the $4.3$4.4 billion of fixed rate loans due within one year, 91% of the commercial loan portfolio noted above matures, re-prices, or resets within one year.
Residential mortgages: Residential mortgage loans are primarily first lien home mortgages with a maximum loan to collateral value without credit enhancement (e.g. private mortgage insurance) of 80%. At March 31,September 30, 2017, the residential mortgage portfolio was comprised of $2.0$2.5 billion of fixed-rate residential real estate mortgages and $4.7$4.9 billion of variable-rate residential real estate mortgages, compared to $1.8 billion of fixed-rate mortgages and $4.5 billion variable-rate mortgages at December 31, 2016. The residential mortgage portfolio is focused primarily in our three-state branch footprint, with approximately 88% of the outstanding loan balances in our branch footprint at March 31,September 30, 2017. As part of management’s historical practice of originating and servicing residential mortgage loans, generally the Corporation’s 30-year,30 year, agency conforming, fixed-rate residential real estate mortgage loans are sold in the secondary market with servicing rights retained. During the first half of 2017, the Corporation retained substantially all of its 30 year production through May. Beginning in June, the Corporation resumed originating for sale. The majority of the on balance sheet residential mortgage portfolio consists of hybrid, adjustable rate mortgage loans with initial fixed rate terms of 3, 5, 7, or 10 years. The Corporation also generally retains certain fixed-rate residential real estate mortgages in its loan portfolio, including retail and private banking


jumbo mortgages and CRA-related mortgages. As part of management’s historical practice of originating and servicing residential mortgage loans, generally the Corporation’s 30-year,30 year, agency conforming, fixed-rate residential real estate mortgage loans were sold in the secondary market with servicing rights retained. Beginning inSubject to management’s analysis of the fourth quarter of 2016,current interest rate environment, among other market factors, the Corporation beganmay choose to hold some of these 30-yearretain 30 year mortgage loans to take advantage of rising rates.loan production on its balance sheet.
The Corporation’s underwriting and risk-based pricing guidelines for residential mortgage loans include minimum borrower FICO and maximum LTV of the property securing the loan. Residential mortgage products generally are underwritten using FHLMC and FNMA secondary marketing guidelines.
Home equity: Home equity consists of both home equity lines of credit and closed-end home equity loans, approximately 24% are first lien positions. Home equity loans and lines in a junior position at March 31,September 30, 2017 included approximately 40%35% for which the Corporation also owned or serviced the related first lien loan and approximately 60%65% where the Corporation did not own or service the related first lien loan.
The Corporation’s credit risk monitoring guidelines for home equity is based on an ongoing review of loan delinquency status, as well as a quarterly review of FICO score deterioration and property devaluation. The Corporation does not routinely obtain appraisals on performing loans to update LTV ratios after origination; however, the Corporation monitors the local housing markets by reviewing the various home price indices and incorporates the impact of the changing market conditions in its ongoing credit monitoring process. For junior lien home equity loans, the Corporation is unable to track the performance of the first lien loan if it does not own or service the first lien loan. However, the Corporation obtains a refreshed FICO score on a quarterly basis and monitors this as part of its assessment of the home equity portfolio.
The Corporation’s underwriting and risk-based pricing guidelines for home equity lines and loans consist of a combination of both borrower FICO and the original cumulative LTV against the property securing the loan.  Currently, our policy sets the maximum


acceptable LTV at 90% and the minimum acceptable FICO at 670.  The Corporation's current home equity line of credit offering is priced based on floating rate indices and generally allows 10 years of interest-only payments followed by a 20-year amortization of the outstanding balance.  The Corporation has significantly curtailed its offerings of fixed-rate, closed end home equity loans.  The loans in the Corporation's portfolio generally have an original term of 20 years with principal and interest payments required.


Based upon outstanding balances at March 31,September 30, 2017, the following table presents the periods when home equity lines of credit revolving periods are scheduled to end.
Table 8 Home Equity Line of Credit - Revolving Period End Dates
$ in Thousands % to Total$ in Thousands % of Total
Less than 5 years$50,345
 6%$56,613
 7%
5 — 10 years218,697
 27%
5 to 10 years214,719
 26%
Over 10 years554,552
 67%542,371
 67%
Total home equity revolving lines of credit$823,594
 100%$813,703
 100%


Other consumer: Other consumer consists of student loans, as well as short-term and other personal installment loans and credit cards. The Corporation had $206$190 million and $214 million of student loans at March 31,September 30, 2017, and December 31, 2016, respectively, the majority of which are government guaranteed. Credit risk for non-government guaranteed student, short-term and personal installment loans and credit cards is influenced by general economic conditions, the characteristics of individual borrowers, and the nature of the loan collateral. Risks of loss are generally on smaller average balances per loan spread over many borrowers. Once charged off, there is usually less opportunity for recovery of these smaller consumer loans. Credit risk is primarily controlled by reviewing the creditworthiness of the borrowers, monitoring payment histories, and taking appropriate collateral and guarantee positions. The student loan portfolio is in run-off and no new student loans are being originated.




Nonperforming Assets
Management is committed to a proactive nonaccrual and problem loan identification philosophy. This philosophy is implemented through the ongoing monitoring and review of all pools of risk in the loan portfolio to ensure that problem loans are identified quickly and the risk of loss is minimized. Table 9 provides detailed information regarding nonperforming assets, which include nonaccrual loans and other real estate owned.owned, and other nonperforming assets.
Table 9 Nonperforming Assets
 September 30,
2017
 June 30,
2017
 March 31,
2017
 December 31,
2016
 September 30,
2016
March 31,
2017
 December 31,
2016
 September 30,
2016
 June 30,
2016
 March 31,
2016
($ in Thousands)
($ in Thousands)
Nonperforming assets: 
Nonperforming assets 
Commercial and industrial$164,891
 $183,371
 $205,902
 $193,439
 $197,115
$122,284
 $141,475
 $164,891
 $183,371
 $205,902
Commercial real estate — owner occupied17,925
 9,544
 6,995
 9,635
 9,443
15,598
 15,800
 17,925
 9,544
 6,995
Commercial and business lending182,816
 192,915
 212,897
 203,074
 206,558
137,882
 157,275
 182,816
 192,915
 212,897
Commercial real estate — investor8,273
 18,051
 8,028
 11,528
 12,330
3,543
 7,206
 8,273
 18,051
 8,028
Real estate construction1,247
 844
 864
 957
 840
1,540
 1,717
 1,247
 844
 864
Commercial real estate lending9,520
 18,895
 8,892
 12,485
 13,170
5,083
 8,923
 9,520
 18,895
 8,892
Total commercial192,336
 211,810
 221,789
 215,559
 219,728
142,965
 166,198
 192,336
 211,810
 221,789
Residential mortgage54,183
 50,236
 53,475
 52,300
 52,212
54,654
 51,975
 54,183
 50,236
 53,475
Home equity revolving lines of credit8,817
 8,588
 9,462
 8,797
 8,822
Home equity loans junior liens4,395
 4,413
 4,885
 5,566
 5,250
Home equity13,212
 13,001
 14,347
 14,363
 14,072
12,639
 13,482
 13,212
 13,001
 14,347
Other consumer260
 256
 300
 380
 383
259
 233
 260
 256
 300
Total consumer67,655
 63,493
 68,122
 67,043
 66,667
67,552
 65,690
 67,655
 63,493
 68,122
Total nonaccrual loans259,991
 275,303
 289,911
 282,602
 286,395
210,517
 231,888
 259,991
 275,303
 289,911
Commercial real estate owned5,599
 7,176
 9,758
 7,473
 9,695
5,098
 4,825
 5,599
 7,176
 9,758
Residential real estate owned1,941
 3,098
 3,006
 4,391
 4,689
3,385
 2,957
 1,941
 3,098
 3,006
Bank properties real estate owned
 
 1,735
 1,805
 1,672

 
 
 
 1,735
Other real estate owned (“OREO”)7,540
 10,274
 14,499
 13,669
 16,056
8,483
 7,782
 7,540
 10,274
 14,499
Other nonperforming assets7,418
 7,418
 
 
 
7,418
 7,418
 7,418
 7,418
 
Total nonperforming assets (“NPAs”)$274,949
 $292,995
 $304,410
 $296,271
 $302,451
$226,418
 $247,088
 $274,949
 $292,995
 $304,410
Accruing loans past due 90 days or more:         
Accruing loans past due 90 days or more         
Commercial$258
 $236
 $254
 $248
 $217
$308
 $248
 $258
 $236
 $254
Consumer1,462
 1,377
 1,257
 1,246
 1,412
1,303
 1,287
 1,462
 1,377
 1,257
Total accruing loans past due 90 days or more$1,720
 $1,613
 $1,511
 $1,494
 $1,629
$1,611
 $1,535
 $1,720
 $1,613
 $1,511
Restructured loans (accruing):         
Restructured loans (accruing)         
Commercial$51,274
 $53,022
 $53,410
 $57,251
 $57,980
$51,259
 $50,634
 $51,274
 $53,022
 $53,410
Consumer27,785
 26,835
 26,660
 26,175
 27,617
25,919
 26,691
 27,785
 26,835
 26,660
Total restructured loans (accruing)$79,059
 $79,857
 $80,070
 $83,426
 $85,597
$77,178
 $77,325
 $79,059
 $79,857
 $80,070
Nonaccrual restructured loans (included in nonaccrual loans)$78,902
 $29,385
 $31,758
 $34,841
 $35,232
$33,520
 $51,715
 $78,902
 $29,385
 $31,758
Ratios:         
Ratios         
Nonaccrual loans to total loans1.29% 1.37% 1.46% 1.43% 1.49%1.01% 1.12% 1.29% 1.37% 1.46%
NPAs to total loans plus OREO1.36% 1.46% 1.53% 1.49% 1.57%1.08% 1.19% 1.36% 1.46% 1.53%
NPAs to total assets0.94% 1.01% 1.04% 1.02% 1.07%0.75% 0.83% 0.94% 1.01% 1.04%
Allowance for loan losses to nonaccrual loans109% 101% 93% 95% 97%131.37% 121.22% 108.72% 101.10% 92.97%



Table 9 Nonperforming Assets (continued)
 September 30,
2017
 June 30,
2017
 March 31,
2017
 December 31,
2016
 September 30,
2016
March 31,
2017
 December 31,
2016
 September 30,
2016
 June 30,
2016
 March 31,
2016
($ in Thousands)
($ in Thousands)
Accruing loans 30-89 days past due:   
Accruing loans 30-89 days past due   
Commercial and industrial$1,675
 $1,413
 $950
 $2,124
 $2,901
$1,378
 $1,255
 $1,675
 $1,413
 $950
Commercial real estate — owner occupied970
 1,384
 869
 193
 520
1,522
 1,284
 970
 1,384
 869
Commercial and business lending2,645
 2,797
 1,819
 2,317
 3,421
2,900
 2,539
 2,645
 2,797
 1,819
Commercial real estate — investor1,122
 931
 630
 2,715
 1,072
1,109
 899
 1,122
 931
 630
Real estate construction431
 369
 402
 524
 415
700
 135
 431
 369
 402
Commercial real estate lending1,553
 1,300
 1,032
 3,239
 1,487
1,809
 1,034
 1,553
 1,300
 1,032
Total commercial4,198
 4,097
 2,851
 5,556
 4,908
4,709
 3,573
 4,198
 4,097
 2,851
Residential mortgage7,243
 8,142
 6,697
 7,382
 3,594
8,870
 9,165
 7,243
 8,142
 6,697
Home equity revolving lines of credit3,332
 4,219
 4,137
 6,075
 3,582
Home equity loans junior liens1,180
 1,630
 1,336
 1,655
 2,222
Home equity4,512
 5,849
 5,473
 7,730
 5,804
7,191
 5,924
 4,512
 5,849
 5,473
Other consumer1,658
 3,189
 2,046
 1,895
 1,682
1,686
 1,746
 1,658
 3,189
 2,046
Total consumer13,413
 17,180
 14,216
 17,007
 11,080
17,747
 16,835
 13,413
 17,180
 14,216
Total accruing loans 30-89 days past due$17,611
 $21,277
 $17,067
 $22,563
 $15,988
$22,456
 $20,408
 $17,611
 $21,277
 $17,067
Potential problem loans:         
Potential problem loans         
Commercial and industrial$218,930
 $227,196
 $351,290
 $379,818
 $328,464
$153,779
 $142,607
 $218,930
 $227,196
 $351,290
Commercial real estate — owner occupied58,994
 64,524
 47,387
 45,671
 41,107
57,468
 60,724
 58,994
 64,524
 47,387
Commercial and business lending277,924
 291,720
 398,677
 425,489
 369,571
211,247
 203,331
 277,924
 291,720
 398,677
Commercial real estate — investor49,217
 51,228
 36,765
 25,081
 25,385
46,770
 48,569
 49,217
 51,228
 36,765
Real estate construction10,141
 2,465
 1,929
 2,117
 2,422
118
 8,901
 10,141
 2,465
 1,929
Commercial real estate lending59,358
 53,693
 38,694
 27,198
 27,807
46,888
 57,470
 59,358
 53,693
 38,694
Total commercial337,282
 345,413
 437,371
 452,687
 397,378
258,135
 260,801
 337,282
 345,413
 437,371
Residential mortgage2,155
 5,615
 3,226
 3,953
 3,488
650
 1,576
 2,155
 5,615
 3,226
Home equity revolving lines of credit46
 46
 46
 62
 48
Home equity loans junior liens174
 68
 32
 32
 161
Home equity220
 114
 78
 94
 209
124
 208
 220
 114
 78
Total consumer2,375
 5,729
 3,304
 4,047
 3,697
774
 1,784
 2,375
 5,729
 3,304
Total potential problem loans$339,657
 $351,142
 $440,675
 $456,734
 $401,075
$258,909
 $262,585
 $339,657
 $351,142
 $440,675
Nonaccrual loans: Nonaccrual loans are considered to be one indicator of potential future loan losses. See Note 7 Loans, of the notes to consolidated financial statements for additional nonaccrual loan disclosures. The ratio of nonaccrual loans to total loans at March 31,September 30, 2017 was 1.29%1.01%, as compared to 1.37% at December 31, 2016 and 1.49%1.46% at March 31,September 30, 2016. See also sections "Credit Risk"Credit Risk and "AllowanceAllowance for Credit Losses".Losses.
Accruing loans past due 90 days or more: Loans past due 90 days or more but still accruing interest are classified as such where the underlying loans are both well secured (the collateral value is sufficient to cover principal and accrued interest) and are in the process of collection. Accruing loans 90 days or more past due at March 31,September 30, 2017 were relatively unchanged from both December 31, 2016 and March 31,September 30, 2016.
Restructured loans: Loans are considered restructured loans if concessions have been granted to borrowers that are experiencing financial difficulty. See also Note 7 Loans, of the notes to consolidated financial statements for additional restructured loans disclosures.
Potential problem loans: The level of potential problem loans is another predominant factor in determining the relative level of risk in the loan portfolio and in determining the appropriate level of the allowance for loan losses. Potential problem loans are generally defined by management to include loans rated as substandard by management but that are not considered impaired (i.e., nonaccrual loans and accruing troubled debt restructurings); however, there are circumstances present to create doubt as to the ability of the borrower to comply with present repayment terms. The decision of management to include performing loans in potential problem loans does not necessarily mean that the Corporation expects losses to occur, but that management recognizes


a higher degree of risk associated with these loans. The decrease is primarily due to the improvement of general commercial related credits and oil and gas related credits.
Other real estate owned ("OREO"): OREO decreased to $8 million at March 31, 2017, compared to $10 million at December 31, 2016 and $16 million at March 31, 2016. OREO: Management actively seeks to ensure OREO properties held are monitored to minimize the Corporation’s risk of loss.
Other nonperforming assets: Other nonperforming assets were $7 million at both March 31, 2017 and December 31, 2016. The asset represents the Bank's ownership interest in a profit participation agreement in an entity created to own certain oil and gas assets obtained as a result of bankruptcy and liquidation of a borrower in partial satisfaction of their loan.


Allowance for Credit Losses
Credit risks within the loan portfolio are inherently different for each loan type. Credit risk is controlled and monitored through the use of lending standards, a thorough review of potential borrowers, and ongoing review of loan payment performance. Active asset quality administration, including early problem loan identification and timely resolution of problems, aids in the management of credit risk and minimization of loan losses. Credit risk management for each loan type is discussed in the section entitled Credit Risk. See Note 7 Loans, for additional disclosures on the allowance for credit losses.
To assess the appropriateness of the allowance for loan losses, an allocation methodology is applied by the Corporation which focuses on evaluation of many factors, including but not limited to: evaluation of facts and issues related to specific loans, management’s ongoing review and grading of the loan portfolio, consideration of historical loan loss and delinquency experience on each portfolio category, trends in past due and nonaccrual loans, the level of potential problem loans, the risk characteristics of the various classifications of loans, changes in the size and character of the loan portfolio, concentrations of loans to specific borrowers or industries, existing economic conditions, the fair value of underlying collateral, and other qualitative and quantitative factors which could affect potential credit losses. Assessing these factors involves significant judgment. Because each of the criteria used is subject to change, the allowance for loan losses is not necessarily indicative of the trend of future loan losses in any particular category. Therefore, management considers the allowance for loan losses a critical accounting policy—See section Critical Accounting Policies, in the Corporation’s 2016 Annual Report on Form 10-K for additional information on the allowance for creditloan losses. See section, "Nonperforming Assets",Nonperforming Assets, for a detailed discussion on asset quality. See also Note 7 Loans, of the notes to consolidated financial statements for additional allowance for loan losses disclosures. Table 5 provides information on loan growth and period end loan composition, Table 9 provides additional information regarding nonperforming assets, and Table 10 and Table 11 provide additional information regarding activity in the allowance for loan losses.
The methodology used for the allocation of the allowance for loan losses at March 31,September 30, 2017 and December 31, 2016 was generally comparable, whereby the Corporation segregated its loss factors (used for both criticized and non-criticized loans) into a component primarily based on historical loss rates and a component primarily based on other qualitative factors that are probable to affect loan collectability. The allocation methodology consists of the following components: First, a valuation allowance estimate is established for specifically identified commercial and consumer loans determined by the Corporation to be impaired, using discounted cash flows, estimated fair value of underlying collateral, and / or other data available. Second, management allocates the allowance for loan losses with loss factors, for criticized loan pools by loan type as well as for non-criticized loan pools by loan type, primarily based on historical loss rates after considering loan type, historical loss and delinquency experience, and industry statistics. Loans that have been criticized are considered to have a higher risk of default than non-criticized loans, as circumstances were present to support the lower loan grade, warranting higher loss factors. The loss factors applied in the methodology are periodically re-evaluated and adjusted to reflect changes in historical loss levels or other risks. Lastly, management allocates allowance for loan losses to absorb unrecognized losses that may not be provided for by the other components due to other factors evaluated by management, such as limitations within the credit risk grading process, known current economic or business conditions that may not yet show in trends, industry or other concentrations with current issues that impose higher inherent risks than are reflected in the loss factors, and other relevant considerations. The total allowance is available to absorb losses from any segment of the loan portfolio.





Table 10 Allowance for Credit Losses
 YTD 
March 31,
2017
December 31,
2016
September 30,
2016
June 30,
2016
March 31,
2016
Sep 2017Sep 2016September 30,
2017
June 30,
2017
March 31,
2017
December 31,
2016
September 30,
2016
($ in Thousands)($ in Thousands)
Allowance for Loan Losses: 
Allowance for Loan Losses 
Balance at beginning of period$278,335
$269,540
$267,780
$277,370
$274,264
$278,335
$274,264
$281,101
$282,672
$278,335
$269,540
$267,780
Provision for loan losses10,000
18,000
20,000
11,000
20,000
27,000
51,000
6,000
11,000
10,000
18,000
20,000
Charge offs(11,854)(11,609)(28,964)(24,621)(21,245)(41,957)(74,830)(14,727)(15,376)(11,854)(11,609)(28,964)
Recoveries6,191
2,404
10,724
4,031
4,351
13,173
19,106
4,177
2,805
6,191
2,404
10,724
Net charge offs(5,663)(9,205)(18,240)(20,590)(16,894)(28,784)(55,724)(10,550)(12,571)(5,663)(9,205)(18,240)
Balance at end of period$282,672
$278,335
$269,540
$267,780
$277,370
$276,551
$269,540
$276,551
$281,101
$282,672
$278,335
$269,540
Allowance for Unfunded Commitments: 
Allowance for Unfunded Commitments 
Balance at beginning of period$25,400
$28,400
$27,400
$24,400
$24,400
$25,400
$24,400
$25,400
$24,400
$25,400
$28,400
$27,400
Provision for unfunded commitments(1,000)(3,000)1,000
3,000

(1,000)4,000
(1,000)1,000
(1,000)(3,000)1,000
Balance at end of period$24,400
$25,400
$28,400
$27,400
$24,400
$24,400
$28,400
$24,400
$25,400
$24,400
$25,400
$28,400
Allowance for credit losses(a)
$307,072
$303,735
$297,940
$295,180
$301,770
$300,951
$297,940
$300,951
$306,501
$307,072
$303,735
$297,940
Provision for credit losses(b)
$9,000
$15,000
$21,000
$14,000
$20,000
$26,000
$55,000
$5,000
$12,000
$9,000
$15,000
$21,000
Net loan (charge offs) recoveries: 
Net loan (charge offs) recoveries 
Commercial and industrial$(4,368)$(6,566)$(16,407)$(18,564)$(14,936)$(24,856)$(49,907)$(9,442)$(11,046)$(4,368)$(6,566)$(16,407)
Commercial real estate — owner occupied19
(221)(154)(20)(43)75
(217)13
43
19
(221)(154)
Commercial and business lending(4,349)(6,787)(16,561)(18,584)(14,979)(24,781)(50,124)(9,429)(11,003)(4,349)(6,787)(16,561)
Commercial real estate — investor(514)5
(564)(560)1,239
(585)115
55
(126)(514)5
(564)
Real estate construction11
(86)(22)(219)(28)(165)(269)(150)(26)11
(86)(22)
Commercial real estate lending(503)(81)(586)(779)1,211
(750)(154)(95)(152)(503)(81)(586)
Total commercial(4,852)(6,868)(17,147)(19,363)(13,768)(25,531)(50,278)(9,524)(11,155)(4,852)(6,868)(17,147)
Residential mortgage(128)(1,048)(540)(757)(1,232)(718)(2,529)(26)(564)(128)(1,048)(540)
Home equity revolving lines of credit85
(611)36
275
(902)
Home equity loans junior liens88
120
89
42
(244)
Home equity173
(491)125
317
(1,146)140
(704)(87)54
173
(491)125
Other consumer(856)(798)(678)(787)(748)(2,675)(2,213)(913)(906)(856)(798)(678)
Total consumer(811)(2,337)(1,093)(1,227)(3,126)(3,253)(5,446)(1,026)(1,416)(811)(2,337)(1,093)
Total net charge offs$(5,663)$(9,205)$(18,240)$(20,590)$(16,894)$(28,784)$(55,724)$(10,550)$(12,571)$(5,663)$(9,205)$(18,240)
Ratios: 
Ratios 
Allowance for loan losses to total loans1.40%1.39%1.36%1.35%1.44%1.32%1.36%1.32%1.35%1.40%1.39%1.36%
Allowance for loan losses to net charge offs (Annualized)12.3x
7.6x
3.7x
3.2x
4.1x
Allowance for loan losses to net charge offs (annualized)7.2x
3.6x
6.6x
5.6x
12.3x
7.6x
3.7x
(a)Includes the allowance for loan losses and the allowance for unfunded commitments.
(b)Includes the provision for loan losses and the provision for unfunded commitments.




Table 11 Annualized net (charge offs) recoveries(a) 
 YTD 
(in basis points)March 31,
2017
December 31,
2016
September 30,
2016
June 30,
2016
March 31,
2016
Sep 2017Sep 2016September 30,
2017
June 30,
2017
March 31,
2017
December 31,
2016
September 30,
2016
  
Net loan (charge offs) recoveries: 
Net loan (charge offs) recoveries 
Commercial and industrial(28)(40)(98)(114)(97)(52)(103)(58)(69)(28)(40)(98)
Commercial real estate — owner occupied1
(10)(7)(1)(2)1
(3)1
2
1
(10)(7)
Commercial and business lending(24)(36)(87)(100)(85)(46)(91)(51)(60)(24)(36)(87)
Commercial real estate — investor(6) N/M
(6)(7)15
(2) N/M
1
(2)(6) N/M
(6)
Real estate construction N/M
(3)(1)(7)(1)(1)(3)(4)(1) N/M
(3)(1)
Commercial real estate lending(4)(1)(5)(7)11
(2) N/M
(1)(1)(4)(1)(5)
Total commercial(16)(22)(55)(64)(48)(28)(56)(31)(36)(16)(22)(55)
Residential mortgage(1)(7)(3)(5)(8)(1)(6) N/M
(3)(1)(7)(3)
Home equity revolving lines of credit4
(29)2
13
(41)
Home equity loans junior liens39
49
34
15
(83)
Home equity8
(21)5
13
(46)2
(10)(4)2
8
(21)5
Other consumer(90)(80)(67)(78)(72)(95)(72)(97)(98)(90)(80)(67)
Total consumer(4)(12)(6)(7)(17)(5)(10)(5)(7)(4)(12)(6)
Total net charge offs(11)(18)(36)(42)(36)(19)(38)(20)(25)(11)(18)(36)
(a)Annualized ratio of net charge offs to average loans by loan type.
N/M = Not Meaningful


At March 31,September 30, 2017, the allowance for credit losses was $307$301 million, compared to $304 million at December 31, 2016 and $302$298 million at March 31,September 30, 2016. At March 31,September 30, 2017, the allowance for loan losses to total loans was 1.40%1.32% and covered 109%131.37% of nonaccrual loans, compared to 1.39% and 101%101.10%, respectively, at December 31, 2016 and 1.44%1.36% and 97%92.97%, respectively, at March 31,September 30, 2016. Management believes the level of allowance for loan losses to be appropriate at March 31,September 30, 2017.
Notable Contributions to the Change in Allowance for Credit Loss
Total loans increased $93$877 million during(4%) for the first quarternine months of 2017, including a $339 million (4%$1.0 billion (13%) increase in total consumer which was partially offset by a $208 million (3%) decrease in commercial and business lending and a $39 million (1%) decrease in commercial real estate lending.consumer. Compared to March 31,September 30, 2016, total loans increased $920 million$1.1 billion (5%), including a $663 million (9%$1.3 billion (17%) increase in total consumer and a $507$53 million (11%(1%) increase in commercial real estate lending, which was partially offset by a $250$253 million (3%) decrease in commercial and business lending. See section “Loans”Loans for additional information on the changes in the loan portfolio and see section "Credit Risk"Credit Risk for discussion about credit risk management for each loan type.


Total nonaccrual loans decreased $15$65 million duringfor the first quarternine months of 2017 and decreased $79 million from September 30, 2016, primarily due to the improvementmigration in general commercial related credits and oil and gas related credits. Nonaccrual loans decreased $26 million from March 31, 2016, primarily due to improvements in general commercial loan portfolio.credits, respectively. See also Note 7 Loans, of the notes to consolidated financial statements and section "Nonperforming Assets"Nonperforming Assets for additional disclosures on the changes in asset quality.


Potential problem loans decreased $11$92 million from December 31, 2016 and decreased $61$182 million from March 31,September 30, 2016, primarily due to the improvement ofimprovements in general commercial related credits and migration in oil and gas related credits, respectively. See Table 9, for additional information on the changes in potential problem loans.


Net charge offs decreased $11$27 million from the first quarternine months of 2016, primarily due to decrease in the charge offoffs of oil and gas credits, and decreased $4 million from the fourth quarter of 2016, primarily due to the charge off of general commercial related credits. See Table 10 and Table 11 for additional information regarding the activity in the allowance for loan losses.


The allowance for loan losses attributable to oil and gas related credits (included within the commercial and industrial allowance for loan losses) was $42$30 million at March 31,September 30, 2017, compared to $38 million at both December 31, 2016 and $49 million at March 31,September 30, 2016. See also "OilOil and gas lending"lending within the "Credit Risk"Credit Risk section for additional disclosure.




Deposits and Customer Funding
Table 12 Period End Deposit and Customer Funding Composition
($ in Thousands)March 31, 2017 December 31, 2016 September 30, 2016 June 30, 2016 March 31, 2016September 30, 2017 June 30, 2017 March 31, 2017 December 31, 2016 September 30, 2016
Amount % of
Total
 Amount % of
Total
 Amount % of
Total
 Amount % of
Total
 Amount % of
Total
Amount % of
Total
 Amount % of
Total
 Amount % of
Total
 Amount % of
Total
 Amount % of
Total
Noninterest-bearing demand$5,338,212
 25% $5,392,208
 25% $5,337,677
 24% $5,039,336
 25% $5,272,685
 26%$5,177,734
 23% $5,038,162
 23% $5,338,212
 25% $5,392,208
 25% $5,337,677
 24%
Savings1,530,155
 7% 1,431,494
 7% 1,441,187
 7% 1,451,801
 7% 1,426,951
 7%1,544,037
 7% 1,552,820
 7% 1,530,155
 7% 1,431,494
 7% 1,441,187
 7%
Interest-bearing demand4,736,236
 22% 4,687,656
 21% 4,548,390
 21% 3,789,138
 19% 3,698,941
 18%4,990,891
 22% 3,858,739
 18% 4,736,236
 22% 4,687,656
 21% 4,548,390
 21%
Money market8,608,523
 39% 8,770,963
 40% 8,894,357
 41% 8,448,543
 42% 8,718,841
 42%8,299,512
 37% 9,228,129
 43% 8,608,523
 39% 8,770,963
 40% 8,894,357
 41%
Brokered CDs54,993
 % 52,725
 % 44,373
 % 46,268
 % 41,440
 %3,554
 % 131,184
 1% 54,993
 % 52,725
 % 44,373
 %
Other time1,559,916
 7% 1,553,402
 7% 1,481,728
 7% 1,517,764
 7% 1,526,602
 7%2,317,723
 11% 1,809,146
 8% 1,559,916
 7% 1,553,402
 7% 1,481,728
 7%
Total deposits$21,828,035
 100% $21,888,448
 100% $21,747,712
 100% $20,292,850
 100% $20,685,460
 100%$22,333,451
 100% $21,618,180
 100% $21,828,035
 100% $21,888,448
 100% $21,747,712
 100%
Customer funding(a)
326,823
   300,197
   477,607
   464,880
   508,262
  255,975
   262,318
   326,823
   300,197
   477,607
  
Total deposits and customer funding$22,154,858
   $22,188,645
   $22,225,319
   $20,757,730
   $21,193,722
  $22,589,426
   $21,880,498
   $22,154,858
   $22,188,645
   $22,225,319
  
Network transaction deposits(b)
$3,417,380
   $3,895,467
   $3,730,513
   $3,141,214
   $3,399,054
  $2,622,787
   $3,220,956
   $3,417,380
   $3,895,467
   $3,730,513
  
Total deposits and customer funding, excluding Brokered CDs and network transaction deposits$18,682,485
   $18,240,453
   $18,450,433
   $17,570,248
   $17,753,228
  
Net deposits and customer funding (total deposits and customer funding, excluding Brokered CDs and network transaction deposits)
$19,963,085
   $18,528,358
   $18,682,485
   $18,240,453
   $18,450,433
  
Time deposits of more than $250,000$244,641
   $234,537
   $149,214
   $151,133
   $144,294
  $1,009,097
   $477,043
   $244,641
   $234,537
   $149,214
  
(a) Repurchase sweep agreements with customers from deposit accounts.
(b) Included above in interest-bearing demand and money market.
(a) Repurchase sweep agreements with customers from deposit accounts.
(b) Included above in interest-bearing demand and money market.


Deposits are the Corporation’s largest source of funds.
Total deposits decreased $60increased $445 million (2%) from December 31, 2016, and increased $1.1 billion (6%$586 million (3%) from March 31, 2016, primarily in interest-bearing demand deposits.September 30, 2016.
Non-maturity deposit accounts, comprised of savings, money market, and demand (both interest and noninterest-bearing demand) accounts accounted for 93%90% of our total deposits at March 31,September 30, 2017.
Included in the above amounts were $3.4$2.6 billion of network deposits, primarily sourced from other financial institutions and intermediaries. These represented 16%12% of our total deposits at MarchSeptember 30, 2017.
Other time deposits increased $764 million (49%) from December 31, 2017.2016, primarily due to an increase to CDs issued to public entities.





Liquidity
The objective of liquidity risk management is to ensure that the Corporation has the ability to generate sufficient cash or cash equivalents in a timely and cost effective manner to satisfy the cash flow requirements of depositors and borrowers and to meet its other commitments as they become due. The Corporation’s liquidity risk management process is designed to identify, measure, and manage the Corporation’s funding and liquidity risk to meet its daily funding needs in the ordinary course of business, as well as to address expected and unexpected changes in its funding requirements. The Corporation engages in various activities to manage its liquidity risk, including diversifying its funding sources, stress testing, and holding readily-marketable assets which can be used as a source of liquidity, if needed.


The Corporation performs dynamic scenario analysis in accordance with industry best practices. Measures have been established to ensure the Corporation has sufficient high quality short-term liquidity to meet cash flow requirements under stressed scenarios. In addition the Corporation also reviews static measures such as deposit funding as a percent of total assets and liquid asset levels. Strong capital ratios, credit quality, and core earnings are also essential to maintaining cost effective access to wholesale funding markets. At March 31,September 30, 2017, the Corporation was in compliance with its internal liquidity objectives and has sufficient asset-based liquidity to meet its obligations under a stressed scenario.


The Corporation maintains diverse and readily available liquidity sources, including:


Investment securities are an important tool to the Corporation’s liquidity objective, and can be pledged or sold to enhance liquidity, if necessary. See also Note 6 Investment Securities of the notes to consolidated financial statements for additional information on the Corporation's investment securities portfolio, including investment securities pledged.
The Bank pledges eligible loans to both the Federal Reserve Bank and the FHLB as collateral to establish lines of credit and borrow from these entities. Based on the amount of collateral pledged, the FHLB established a collateral value from which the Bank may draw advances against the collateral. Also, the collateral is used to enable the FHLB to issue letters of credit in favor of public fund depositors of the Bank. As of March 31,September 30, 2017, the Bank had $2.9$2.6 billion available for future advances. The Federal Reserve Bank also establishes a collateral value of assets to support borrowings from the discount window. As of March 31,September 30, 2017, the Bank had $2.2 billion available for discount window borrowings.
The Parent Company has a $200 million commercial paper program, of which, $122$68 million was outstanding as of March 31,September 30, 2017.
Dividends and service fees from subsidiaries, as well as the proceeds from issuance of capital, are also funding sources for the Parent Company.
The Parent Company has filed a shelf registration statement with the SEC under which the Parent Company may, from time to time, offer shares of the Corporation’s common stock in connection with acquisitions of businesses, assets or securities of other companies.
The Parent Company also has filed a universal shelf registration statement with the SEC, under which the Parent Company may offer the following securities, either separately or in units: debt securities, preferred stock, depositary shares, common stock, and warrants.
The Bank may also issue institutional certificates of deposit, network transaction deposits, and brokered certificates of deposit.


Credit ratings relate to the Corporation’s ability to issue debt securities and the cost to borrow money, and should not be viewed as an indication of future stock performance or a recommendation to buy, sell, or hold securities. Adverse changes in these factors could result in a negative change in credit ratings and impact not only the ability to raise funds in the capital markets but also the cost of these funds. The credit ratings of the Parent Company and the Bank at March 31,September 30, 2017 are displayed below.
Table 13 Credit Ratings
 Moody’s 
S&P*&P(a)
Associated Bank short-term depositsP-1  -
Associated Bank long-termA1  BBB+
Corporation short-termP-2  -
Corporation long-termBaa1  BBB
OutlookNegative  Stable
* Standard and Poor's
(a) Standard and Poor's.




For the threenine months ended March 31,September 30, 2017, net cash provided by operating activities and financing activities was $170$316 million and $717 million, respectively, while financing and investing activities used net cash of $82$1.2 billion, for a net decrease in cash and cash equivalents of $151 million since year-end 2016. At September 30, 2017, assets of $30.1 billion increased $925 million compared to year-end 2016. On the funding side, deposits of $22.3 billion increased by $445 million when compared to year-end 2016.
For the nine months ended September 30, 2016, net cash provided by operating and financing activities was $416 million and $40 million,$1.2 billion, respectively, while investing activities used net cash of $1.5 billion, for a net increase in cash and cash equivalents of $47 million since year-end 2016. During the first quarter of 2017, assets of $29.1 billion were relatively unchanged compared to year-end 2016. On the funding side, deposits of $21.8 billion were minimally unchanged when compared to year-end 2016.
For the three months ended March 31, 2016, net cash provided by operating and financing activities was $22 million and $405 million, respectively, while investing activities used net cash of $526 million, for a net decrease in cash and cash equivalents of $98$137 million since year-end 2015. During the first threenine months of 2016, assets increased to $28.2$29.2 billion (up $467 million$1.4 billion or 2%5%)compared to year-end 2015, primarily due to $513 millionan increase in loans. On the funding side, deposits decreased $322 million whileand short-term and long-term funding increased $583$740 million and $185$406 million, respectively.




Quantitative and Qualitative Disclosures about Market Risk
Market risk and interest rate risk are managed centrally. Market risk is the potential for loss arising from adverse changes in the fair value of fixed income securities, equity securities, other earning assets and derivative financial instruments as a result of changes in interest rates or other factors. Interest rate risk is the potential for reduced net interest income resulting from adverse changes in the level of interest rates. As a financial institution that engages in transactions involving an array of financial products, the Corporation is exposed to both market risk and interest rate risk. In addition to market risk, interest rate risk is measured and managed through a number of methods. The Corporation uses financial modeling simulation techniques that measure the sensitivity of future earnings due to changing rate environments to measure interest rate risk.
Policies established by the Corporation’s Asset / Liability Committee (“ALCO”) and approved by the Board of Directors are intended to limit these risks. The Board has delegated day-to-day responsibility for managing market and interest rate risk to ALCO. The primary objectives of market risk management is to minimize any adverse effect that changes in market risk factors may have on net interest income and to offset the risk of price changes for certain assets recorded at fair value.
Interest Rate Risk
The primary goal of interest rate risk management is to control exposure to interest rate risk within policy limits approved by the Board of Directors. These limits and guidelines reflect our risk appetite for interest rate risk over both short-term and long-term horizons. No limit breaches occurred during the first threenine months of 2017.
The major sources of our non-trading interest rate risk are timing differences in the maturity and re-pricing characteristics of assets and liabilities, changes in the shape of the yield curve, and the potential exercise of explicit or embedded options. We measure these risks and their impact by identifying and quantifying exposures through the use of sophisticated simulation and valuation models which are employed by management to understand net interest income (NII) at risk, interest rate sensitive earnings at risk (EAR), and market value of equity (MVE) at risk. These measures show that our interest rate risk profile was slightly asset sensitive at March 31,September 30, 2017.
For further discussion of the Corporation's interest rate risk and corresponding key assumptions, see the Interest Rate Risk section of Management’s Discussion and Analysis of Financial Condition and Results of Operations included in the Corporation’s 2016 Annual Report on Form 10-K.
The sensitivity analysis included below is measured as a percentage change in NII and EAR due to instantaneous moves in benchmark interest rates from a baseline scenario. We evaluate the sensitivity using: 1) a dynamic forecast incorporating expected growth in the balance sheet, and 2) a static forecast where the current balance sheet is held constant.
Table 14 Estimated % Change in Net Interest Income Over 12 Months
Estimated % Change in Rate Sensitive Earnings at Risk (EAR) Over 12 MonthsEstimated % Change in Rate Sensitive Earnings at Risk (EAR) Over 12 Months
Dynamic Forecast
March 31, 2017
 Static Forecast
March 31, 2017
 Dynamic Forecast
December 31, 2016
 Static Forecast
December 31, 2016
Dynamic Forecast
September 30, 2017
 Static Forecast
September 30, 2017
 Dynamic Forecast
December 31, 2016
 Static Forecast
December 31, 2016
Instantaneous Rate Change              
100 bp increase in interest rates1.5% 1.9% 1.4% 1.5%2.3% 2.4% 1.4% 1.5%
200 bp increase in interest rates3.0% 3.6% 2.7% 2.9%4.2% 4.5% 2.7% 2.9%

At March 31,September 30, 2017, the MVE profile indicates a decline in net balance sheet value due to instantaneous upward changes in rates.


Table 15 Market Value of Equity Sensitivity
March 31, 2017 December 31, 2016September 30, 2017 December 31, 2016
Instantaneous Rate Change      
100 bp increase in interest rates(2.9)% (2.9)%(2.9)% (2.9)%
200 bp increase in interest rates(6.2)% (6.0)%(6.3)% (6.0)%

While an instantaneous and severe shift in interest rates was used in this analysis to provide an estimate of exposure under an extremely adverse scenario, the Corporation believes that a gradual shift in interest rates would have a much more modest impact. Since MVE measures the discounted present value of cash flows over the estimated lives of instruments, the change in MVE does


not directly correlate to the degree that earnings would be impacted over a shorter time horizon (i.e., the current year). Further,


MVE does not take into account factors such as future balance sheet growth, changes in product mix, changes in yield curve relationships, and changing product spreads that could mitigate the adverse impact of changes in interest rates.
The above NII, EAR, and MVE measures do not include all actions that management may undertake to manage this risk in response to anticipated changes in interest rates.
Contractual Obligations, Commitments, Off-Balance Sheet Arrangements, and Contingent Liabilities
Table 16 Contractual Obligations and Other Commitments
March 31, 2017
One Year
or Less
 
One to
Three Years
 
Three to
Five Years
 
Over
Five Years
 Total
September 30, 2017
One Year
or Less
 
One to
Three Years
 
Three to
Five Years
 
Over
Five Years
 Total
($ in Thousands)($ in Thousands)
Time deposits$945,107
 $481,279
 $184,858
 $3,665
 $1,614,909
$1,629,556
 $539,910
 $147,989
 $3,822
 $2,321,277
Short-term funding1,080,867
 
 
 
 1,080,867
1,064,617
 
 
 
 1,064,617
Long-term funding
 2,364,032
 150,162
 247,761
 2,761,955
250,000
 1,999,377
 150,000
 747,908
 3,147,285
Operating leases9,711
 18,780
 15,469
 20,940
 64,900
9,711
 18,780
 15,469
 20,940
 64,900
Commitments to extend credit4,057,372
 2,829,683
 1,314,321
 132,137
 8,333,513
4,089,838
 2,753,203
 1,344,723
 169,077
 8,356,841
Total$6,093,057
 $5,693,774
 $1,664,810
 $404,503
 $13,856,144
$7,043,722
 $5,311,270
 $1,658,181
 $941,747
 $14,954,920
The Corporation utilizes a variety of financial instruments in the normal course of business to meet the financial needs of its customers and to manage its own exposure to fluctuations in interest rates. These financial instruments include lending-related commitments and derivative instruments. A discussion of the Corporation’s derivative instruments at March 31,September 30, 2017, is included in Note 10, Derivative and Hedging Activities, of the notes to consolidated financial statements. A discussion of the Corporation��sCorporation’s lending-related commitments is included in Note 12, Commitments, Off-Balance Sheet Arrangements, and Legal Proceedings and Regulatory Matters, of the notes to consolidated financial statements. See also Note 9, Short and Long-Term Funding, of the notes to consolidated financial statements for additional information on the Corporation’s short-term and long-term funding.
Table 16 summarizes significant contractual obligations and other commitments at March 31,September 30, 2017, at those amounts contractually due to the recipient, including any premiums or discounts, hedge basis adjustments, or other similar carrying value adjustments.




Capital
Management actively reviews capital strategies for the Corporation and each of its subsidiaries in light of perceived business risks, future growth opportunities, industry standards, and compliance with regulatory requirements. The assessment of overall capital adequacy depends on a variety of factors, including asset quality, liquidity, stability of earnings, changing competitive forces, economic condition in markets served, and strength of management. At March 31,September 30, 2017, the capital ratios of the Corporation and its banking subsidiary were in excess of regulatory minimum requirements. The Corporation’s capital ratios are summarized in Table 17.


Table 17 Capital Ratios
 3Q17 2Q17 1Q17 4Q16 3Q16
 ($ in Thousands)
Risk-based Capital(a)
         
Common equity Tier 1$2,144,325
 $2,130,238
 $2,085,309
 $2,032,587
 $1,983,770
Tier 1 capital2,304,037
 2,289,831
 2,244,863
 2,191,798
 2,142,779
Total capital2,823,097
 2,808,049
 2,757,310
 2,706,760
 2,656,648
Total risk-weighted assets21,657,286
 21,590,134
 21,128,672
 21,340,951
 21,264,972
Common equity Tier 1 capital ratio9.90% 9.87% 9.87% 9.52% 9.33%
Tier 1 capital ratio10.64% 10.61% 10.62% 10.27% 10.08%
Total capital ratio13.04% 13.01% 13.05% 12.68% 12.49%
Tier 1 leverage ratio7.93% 8.09% 8.05% 7.83% 7.64%
Selected Equity and Performance Ratios         
Total stockholders’ equity / assets10.66% 10.72% 10.80% 10.61% 10.62%
Dividend payout ratio(b)
29.27% 33.33% 33.33% 34.29% 32.35%
 1Q17 4Q16 3Q16 2Q16 1Q16
 ($ in Thousands)
Risk-based Capital (1)
         
Common equity Tier 1$2,085,309
 $2,032,587
 $1,983,770
 $1,940,704
 $1,902,593
Tier 1 capital2,244,863
 2,191,798
 2,142,779
 2,059,661
 2,021,125
Total capital2,757,310
 2,706,760
 2,656,648
 2,573,941
 2,526,653
Total risk-weighted assets21,128,673
 21,340,951
 21,264,972
 21,168,161
 20,453,744
Common equity Tier 1 capital ratio9.87% 9.52% 9.33% 9.17% 9.30%
Tier 1 capital ratio10.62% 10.27% 10.08% 9.73% 9.88%
Total capital ratio13.05% 12.68% 12.49% 12.16% 12.35%
Tier 1 leverage ratio8.05% 7.83% 7.64% 7.43% 7.55%
Selected Equity and Performance Ratios         
Stockholders’ equity / assets10.80% 10.61% 10.62% 10.43% 10.58%
Dividend payout ratio (2)
33.33% 34.29% 32.35% 35.48% 40.74%
(1)(a)The Federal Reserve establishes regulatory capital requirements, including well-capitalized standards for the Corporation. The Corporation follows Basel III, subject to certain transition provisions. These regulatory capital measurements are used by management, regulators, investors, and analysts to assess, monitor and compare the quality and composition of our capital with the capital of other financial services companies. See Table 18 for a reconciliation of common equity Tier 1 and average common equity Tier 1.
(2)(b)Ratio is based upon basic earnings per common share.





Non-GAAP Measures
Table 18 Non-GAAP Measures
1Q174Q163Q162Q161Q16YTDQuarter Ended
($ in Thousands)Sep 2017Sep 2016September 30,
2017
June 30,
2017
March 31,
2017
December 31,
2016
September 30,
2016
Selected Equity and Performance Ratios (1) (2)
 
($ in Thousands)
Selected Equity and Performance Ratios(a)(b)
 
Tangible common equity / tangible assets7.10%6.91%6.92%6.85%6.89% 7.08 %7.11 %7.10 %6.91 %6.92 %
Return on average equity7.31%7.07%7.03%6.19%5.76%7.59 %6.47 %8.10 %7.35 %7.31 %7.07 %7.03 %
Return on average tangible common equity11.07%10.78%10.68%10.04%8.72%11.45 %9.83 %12.20 %11.06 %11.07 %10.78 %10.68 %
Return on average Common equity Tier 110.61%10.45%10.52%9.86%8.55%11.00 %9.66 %11.73 %10.63 %10.61 %10.45 %10.52 %
Return on average assets0.79%0.75%0.74%0.69%0.62%0.82 %0.68 %0.86 %0.80 %0.79 %0.75 %0.74 %
Average stockholders' equity / average assets10.85%10.67%10.52%11.13%10.73%10.77 %10.58 %10.63 %10.84 %10.85 %10.67 %10.52 %
Tangible Common Equity and Common Equity Tier 1 Reconciliation (1)(2)
 
Tangible Common Equity and Common Equity Tier 1 Reconciliation(a)(b)
 
Common equity$2,984,865
$2,931,383
$2,937,186
$2,909,946
$2,862,151
 $3,043,672
$3,031,573
$2,984,865
$2,931,383
$2,937,186
Goodwill and other intangible assets, net(987,032)(987,328)(987,853)(988,378)(988,917) (986,086)(986,536)(987,032)(987,328)(987,853)
Tangible common equity$1,997,833
$1,944,055
$1,949,333
$1,921,568
$1,873,234
 $2,057,586
$2,045,037
$1,997,833
$1,944,055
$1,949,333
Less: Accumulated other comprehensive income / loss56,344
54,679
1,254
(13,453)(2,167) 54,288
53,470
56,344
54,679
1,254
Less: Deferred tax assets/deferred tax liabilities, net31,132
33,853
33,183
32,589
31,526
 32,451
31,731
31,132
33,853
33,183
Common equity Tier 1$2,085,309
$2,032,587
$1,983,770
$1,940,704
$1,902,593
 $2,144,325
$2,130,238
$2,085,309
$2,032,587
$1,983,770
Tangible Assets Reconciliation (1)
 
Tangible Assets Reconciliation(a)
 
Total assets$29,109,857
$29,139,315
$29,152,764
$29,038,699
$28,178,867
 $30,064,547
$29,769,025
$29,109,857
$29,139,315
$29,152,764
Goodwill and other intangible assets, net(987,032)(987,328)(987,853)(988,378)(988,917) (986,086)(986,536)(987,032)(987,328)(987,853)
Tangible assets$28,122,825
$28,151,987
$28,164,911
$28,050,321
$27,189,950
 $29,078,461
$28,782,489
$28,122,825
$28,151,987
$28,164,911
Average Tangible Common Equity and Average Common Equity Tier 1 Reconciliation (1) (2)
 
Average Tangible Common Equity and Average Common Equity Tier 1 Reconciliation(a)(b)
 
Common equity$2,963,462
$2,924,831
$2,910,691
$2,868,772
$2,849,382
$2,998,088
$2,876,407
$3,024,918
$3,005,209
$2,963,462
$2,924,831
$2,910,691
Goodwill and other intangible assets, net(987,135)(987,640)(988,171)(988,699)(989,127)(986,765)(988,664)(986,342)(986,826)(987,135)(987,640)(988,171)
Tangible common equity1,976,327
1,937,191
1,922,520
1,880,073
1,860,255
2,011,323
1,887,743
2,038,576
2,018,383
1,976,327
1,937,191
1,922,520
Less: Accumulated other comprehensive income / loss54,234
27,922
(2,616)1,365
3,320
51,163
678
49,164
50,148
54,234
27,922
(2,616)
Less: Deferred tax assets/deferred tax liabilities, net31,188
33,340
32,712
31,803
32,906
31,476
32,474
31,935
31,294
31,188
33,340
32,712
Average common equity Tier 1$2,061,749
$1,998,453
$1,952,616
$1,913,241
$1,896,481
$2,093,962
$1,920,895
$2,119,675
$2,099,825
$2,061,749
$1,998,453
$1,952,616
Efficiency Ratio Reconciliation (3)
 
Efficiency Ratio Reconciliation(c)
 
Federal Reserve efficiency ratio66.39 %65.35 %64.40 %69.34 %69.01 %65.64 %67.51 %63.92 %66.69 %66.39 %65.35 %64.40 %
Fully tax-equivalent adjustment(1.30)%(1.25)%(1.21)%(1.36)%(1.37)%(1.27)%(1.32)%(1.21)%(1.30)%(1.30)%(1.25)%(1.21)%
Other intangible amortization(0.20)%(0.20)%(0.19)%(0.21)%(0.20)%(0.18)%(0.20)%(0.16)%(0.18)%(0.20)%(0.20)%(0.19)%
Fully tax-equivalent efficiency ratio64.89 %63.90 %63.00 %67.77 %67.44 %64.19 %65.99 %62.55 %65.21 %64.89 %63.90 %63.00 %
(1)(a)The ratio tangible common equity to tangible assets excludes goodwill and other intangible assets, net, which is a non-GAAP financial measure. This financial measure has been included as it is considered to be a critical metric with which to analyze and evaluate financial condition and capital strength.
(2)(b)The Federal Reserve establishes regulatory capital requirements, including well-capitalized standards for the Corporation. The Corporation follows Basel III, subject to certain transition provisions. These regulatory capital measurements are used by management, regulators, investors, and analysts to assess, monitor and compare the quality and composition of our capital with the capital of other financial services companies.
(3)(c)The efficiency ratio as defined by the Federal Reserve guidance is noninterest expense (which includes the provision for unfunded commitments) divided by the sum of net interest income plus noninterest income, excluding investment securities gains / losses, net. The fully tax-equivalent efficiency ratio is noninterest expense (which includes the provision for unfunded commitments), excluding other intangible amortization, divided by the sum of fully tax-equivalent net interest income plus noninterest income, excluding investment securities gains / losses, net. Management believes the fully tax-equivalent efficiency ratio, which adjusts net interest income for the tax-favored status of certain loans and investment securities, to be the preferred industry measurement as it enhances the comparability of net interest income arising from taxable and tax-exempt sources.


See Part II, Item 2, “UnregisteredUnregistered Sales of Equity Securities and Use of Proceeds, for additional information on the shares repurchased during the firstthird quarter of 2017.



Sequential Quarter Results

The Corporation reported net income of $56$65 million for the firstthird quarter of 2017, compared to net income of $55$58 million for the fourthsecond quarter of 2016.2017. Net income available to common equity was $54$63 million for the firstthird quarter of 2017 or net income of $0.36$0.41 for both basic and $0.35 for diluted earnings per common share, respectively.share. Comparatively, net income available to common equity for the fourthsecond quarter of 2016,2017, was $52$56 million, or net income of $0.35$0.36 for both basic and $0.34 for diluted earnings per common share, respectively (see Table 1).
Fully tax-equivalent net interest income for the firstthird quarter of 2017 was $186$195 million, minimally$6 million higher from the fourthsecond quarter of 2016. The Federal funds target rate increased to 0.75%, compared to 0.50% in fourth quarter of 2016.2017. The net interest margin in the firstthird quarter of 2017 was up 41 bp, to 2.84%. Average earning assets decreased $84increased $715 million to $26.3$27.5 billion in the firstthird quarter of 2017, with average loans up $96$377 million, while average investments and other short-term investments were down $180 million (primarily in mortgage related securities).up $338 million. On the funding side, average interest-bearing deposits were up $51$818 million, while noninterest-bearing demand deposits were down $328up $100 million. Average short and long-term funding increased $137decreased $210 million (primarily short-term FHLB advances) (see Table 2).


The provision for credit losses was $9$5 million for the firstthird quarter of 2017, down $6$7 million from the fourthsecond quarter of 20162017 (see Table 10). See discussion under sections,sections: Provision for Credit Losses, Nonperforming Assets, and Allowance for Credit Losses.
Noninterest income for the firstthird quarter of 2017 decreased $12increased $3 million (13%(4%) to $80$86 million versus the fourthsecond quarter of 2016.2017. Fee-based revenue increased $3decreased $1 million (5%(2%) from the fourthsecond quarter of 2016,2017, primarily due to seasonally higher propertycard-based and casualty insurance commissions. Net mortgageother nondeposit fees. Mortgage banking, incomenet, was $5up $2 million down $7 million(31%) from the fourth quarter of 2016, primarily driven by a $3 million unfavorable change in fair value of mortgage derivatives, an increase in mortgage servicing rights expense (primarily due to a $3 million recovery to the valuation reserve in the fourth quarter of 2016 versus none in the first quarter of 2017), and a $1 million decrease in gain on sale of loans. Capital market fees were $4 million for the firstsecond quarter of 2017 a decreaseas the Corporation resumed its historical practice of $4originating loans for sale in the secondary market. BOLI income was $7 million, compared to the fourth quarteran increase of 2016, due to fewer customer hedging transactions, lower valuation gains, and lower loan syndication activity. Investment securities gains decreased $3 million in first(69%) from the second quarter of 2017, primarily due to mortgage-related security sales inincreased policy payouts during the fourththird quarter of 20162017. (see Table 3).
Noninterest expense decreased $5increased $1 million (3%(1%) to $174$177 million. Personnel expense was $104$106 million for the firstthird quarter of 2017, down $3up $1 million (3%(1%) from the fourthsecond quarter of 2016, primarily attributable to $3 million of severance in the fourth quarter.2017. Occupancy expense increased $2decreased $1 million (4%) from the second quarter of 2017, primarily due to increased snow plowing and higher lease terminations and adjustments.driven by the benefits from ongoing internal consolidation efforts. Legal and professional fees were $4$6 million, downup $1 million (9%) from the fourthsecond quarter of 2016,2017, primarily driven by lowerhigher consulting fees. FDIC expense was $8 million, down $1 million fromfees related to the fourth quarterpending acquisition of 2016.Bank Mutual. All remaining noninterest expense categories on a combined basis were down $1 million (3%)virtually flat compared to fourththe second quarter of 20162017 (see Table 4).
For the firstthird quarter of 2017, the Corporation recognized income tax expense of $21$29 million, compared to income tax expense of $20 million for the second quarter of 2017. The effective tax rate was 30.55% and 25.58% for the third quarter of 2017 and the second quarter of 2017, respectively. See Income Taxes section for a detailed discussion on income taxes.
Comparable Quarter Results

The Corporation reported net income of $65 million for the third quarter of 2017, compared to $54 million for the third quarter of 2016. Net income available to common equity was $63 million for the third quarter of 2017, or net income of $0.41 for both basic and diluted earnings per common share. Comparatively, net income available to common equity for the third quarter of 2016, was $52 million, or net income of $0.34 for both basic and diluted earnings per common share (see Table 1).
Fully tax-equivalent net interest income for the third quarter of 2017 was $195 million, $12 million higher than the third quarter of 2016. The net interest margin between the comparable quarters was up 7 bp, to 2.84%, in the third quarter of 2017. Average earning assets increased $1.0 billion to $27.5 billion in the third quarter of 2017, with average loans up $846 million (predominantly due to increases in residential mortgage loans). On the funding side, average interest-bearing deposits increased $1.2 billion, while noninterest-bearing demand deposits decreased $170 million from the third quarter of 2016. Average short and long-term funding decreased $183 million (see Table 2).
The provision for credit losses was $5 million for the third quarter of 2017, down $16 million from the third quarter of 2016 (see Table 10). See discussion under sections: Provision for Credit Losses, Nonperforming Assets, and Allowance for Credit Losses.
Noninterest income for the third quarter of 2017 of $86 million was down $9 million (10%) compared to third quarter of 2016. Net mortgage banking income for the third quarter of 2017 was down $12 million (64%) compared to the third quarter of 2016, primarily driven by portfolio loan sales in the third quarter of 2016. Capital market fees, net, was down $2 million (34%), primarily driven by decreased syndication fees compared to the third quarter of 2016. BOLI income increased $3 million (100%) from the third quarter of 2016, primarily due to increased policy payouts during the third quarter of 2017 (see Table 3).
On a comparable quarter basis, noninterest expense increased $2 million (1%) to $177 million for the third quarter of 2017. Personnel expense was $106 million for the third quarter of 2017, up $2 million (2%) from the third quarter of 2016, primarily driven by an increase in health insurance costs and incentive plan estimates. Occupancy expense decreased $3 million (20%) compared to the third quarter of 2016, primarily driven by the benefits from ongoing internal consolidation efforts. Technology


expense increased $1 million (7%) to $15 million in the third quarter of 2017, driven by investments in technology solutions that meet evolving customer needs and improve operational efficiency. Business development and advertising expense was $8 million, an increase of $3 million (48%) from the third quarter of 2016, primarily driven by the Corporation's expanded fall advertising campaigns. Legal and professional fees increased $1 million (30%) from the third quarter of 2016, primarily due to the pending acquisition of Bank Mutual. All remaining noninterest expense categories on a combined were down $2 million (6%) compared to third quarter of 2016 (see Table 4).
The Corporation recognized income tax expense of $29 million for the third quarter of 2017, compared to income tax expense of $24 million for fourththird quarter of 2016. The effective tax rate was 27.31%30.55% and 30.07%30.52% for the firstthird quarter of 2017 and the fourth quarter of 2016, respectively. See Income Taxes section for a detailed discussion on income taxes.
Segment Review
As discussed in Note 15 Segment Reporting of the notes to consolidated financial statements, the Corporation’s reportable segments have been determined based upon its internal profitability reporting system, which is organized by strategic business unit. Certain strategic business units have been combined for segment information reporting purposes where the nature of the products and services, the type of customer, and the distribution of those products and services are similar. The reportable segments are Corporate and Commercial Specialty; Community, Consumer and Business; and Risk Management and Shared Services.
FTP is an important tool for managing the Corporation’s balance sheet structure and measuring risk-adjusted profitability. By appropriately allocating the cost of funding and contingent liquidity to business units, the FTP process improves product pricing, which influences the volume and terms of new business and helps to optimize the risk / reward profile of the balance sheet. This process helps align the Corporation’s funding and contingent liquidity risk with its risk appetite and complements broader liquidity and interest rate risk management programs. FTP methodologies are designed to promote more resilient, sustainable business models and centralize the management of funding and contingent liquidity risks. Through FTP, the Corporation transfers these risks to a central management function that can take advantage of natural off-sets, centralized hedging activities, and a broader view of these risks across business units.
Comparable Quarter
Year to Date Segment Review
The Corporate and Commercial Specialty segment consists of lending and deposit solutions to larger businesses, developers, not-for-profits, municipalities, and financial institutions, and the support to deliver, fund, and manage such banking solutions. The Corporate and Commercial Specialty segment had net income of $35$106 million for the first quarternine months of 2017, up $6$19 million, fromcompared to $87 million for the comparable quarter infirst nine months of 2016. Segment revenue increased $11$30 million to $308 million for the first nine months of 2017, compared to $278 million for the first quarternine months of 2016, primarily due to growth in average loan balances and an adjustment of FTPinterest rate assumptions made inincreases at the fourth quarterend of 2016 that increased FTPand in 2017. The credit provision decreased $6 million to $33 million during the first nine months of 2017 due to the business unitsmigration of general commercial related credits and decreased the FTP to the Risk Managementoil and Shared Services segment.gas related credits. Average loan balances were $10.8 billion for the first quarternine months of 2017, up $1.1 billion$749 million from an average balance of $9.7 billion for first quarter of 2016. The credit provision decreased $1 million to $12 million for the first quarternine months of 2017, due to improvement in loan credit quality, partially offset by higher provision for growth in the loan portfolio.2016. Average deposit balances were $6.4$6.8 billion for the first quarternine months of 2017, up $502$852 million from the comparable quarterfirst nine months of 2016. Average allocated capital increased $83$58 million to $1.1 billion for the first quarternine months of 2017.2017, reflecting the increase in the segment’s loan balances.
The Community, Consumer, and Business Bankingsegment consists of lending and deposit solutions to individuals and small to mid-sized businesses and also provides a variety of investment and fiduciary products and services. The Community, Consumer, and Business segment had net income of $22$60 million for the first quarternine months of 2017, up $7$10 million compared tofrom the first quarternine months of 2016. Segment revenue increased $4$3 million to $154$469 million for the first quarternine months of 2017, primarily due to adjustment of FTPgrowth in average loan balances and interest rate assumptions made in fourth quarter 2016 that increased FTPincreases. Noninterest expense decreased $9 million to $362 million for the business units and decreased the FTP to the Risk Management and Shared Services segment. Total noninterest expense for first quarternine months of 2017, was $116 million, down $5 million from the comparable quarter of 2016.primarily due to decreases in personnel related expenses. Average loan balances were $9.1$9.4 billion for the first quarternine months of 2017, relatively unchangedup $129 million from the comparable quarterfirst nine months of 2016. Average deposits were $11.3$11.6 billion for the first quarternine months of 2017, up $237$248 million from average deposits of $11.1 billion for the comparable quarterfirst nine months of 2016. Average allocated capital decreased approximately $51$47 million duringto $585 million for the first quarternine months of 2017 compared to the first quarter of 2016.


2017.
The Risk Management and Shared Services segment had revenuenet income of $14 million for the first nine months of 2017, up $5 million incompared to the first quarter of 2017, a decrease of $10 million from the comparable quarternine months of 2016. The decrease in netNet interest income wasdecreased $14 million, primarily due to recent increaseschanges in the rate environment, as well as an adjustment of FTP rate assumptions made in fourth quarter 2016 that increased the interest income allocated to the lines of business with an offsetting decrease in the interest income allocated to the Risk Management and Shared Services segment. Noninterest income decreased $5 million, primarily due to $6 million gain on the sales of FNMA and FHLMC securities in the nine months ended September 30, 2016. The credit provision improved $20 million. Average earning asset balances were $6.6 billion for the first nine months of 2017, up $79 million from the first nine months of 2016. Average deposits were $3.5 billion for the first nine months of 2017, down $45 million from the first nine months of 2016. Average allocated capital increased to $387 million for the first nine months of 2017.



Comparable Quarter Segment Review
The Corporate and Commercial Specialty segment had net income of $36 million for the third quarter of 2017, up $4 million from the comparable quarter in 2016. Segment revenue increased $8 million compared to achievethird quarter of 2016, primarily due to growth in average loan balances and interest rate increases at the end of 2016 and in 2017. The credit provision decreased $2 million to $9 million for the third quarter of 2017, due to the migration of general commercial related credits and oil and gas related credits. Average loan balances were $10.9 billion for the third quarter of 2017, up $481 million from an average balance of $10.4 billion for third quarter of 2016. Average deposit balances were $7.4 billion for the third quarter of 2017, up $1.2 billion from the comparable quarter of 2016. Average allocated capital increased $34 million to $1.1 billion for third quarter of 2017.
The Community, Consumer, and Business Banking segment had net income of $22 million for the third quarter of 2017, up $1 million compared to third quarter of 2016. Segment revenue decreased $7 million to $159 million for the third quarter of 2017, primarily due to a more neutral internal funding cost variance. decrease in net mortgage banking. Total noninterest expense for third quarter of 2017 was $120 million, down $7 million from the comparable quarter of 2016, primarily due to a decrease in personnel expense. Average loan balances were $9.6 billion for the third quarter of 2017, up $189 million from the comparable quarter of 2016. Average deposits were $11.8 billion for the third quarter of 2017, up $262 million from average deposits of $11.5 billion for the comparable quarter of 2016. Average allocated capital decreased $45 million compared to the third quarter of 2016.
The decreaseRisk Management and Shared Services segment had revenue of $13 million in the third quarter of 2017, an increase of $1 million from the comparable quarter of 2016. The increase in noninterest income was primarily due to $3 million less net investment securities gains, along with $2 million decreasedincreased proceeds from BOLIbank owned life insurance policy claimspayouts, which was partially offset by decreased capital market fees of $1 million and the loss on sale of assets of $1 million from the comparable quarter of 2016. The credit provision decreased $8 million due to improvements in loan credit quality.$13 million. Average deposits were $3.7$3.3 billion for firstthird quarter of 2017, up $152down $396 million versus the comparable quarter of 2016. Average allocated capital increased $133$178 million to $371$406 million for firstthird quarter of 2017.

Critical Accounting Policies
In preparing the consolidated financial statements, management is required to make estimates and assumptions that affect the reported amounts of assets and liabilities as of the date of the balance sheet and revenues and expenses for the period. Actual results could differ significantly from those estimates. Estimates that are particularly susceptible to significant change include the determination of the allowance for loan losses, goodwill impairment assessment, mortgage servicing rights valuation, and income taxes. A discussion of these policies can be found in the "Critical Accounting Policies" section in Management's Discussion and Analysis of Financial Condition and Results of Operations included in the Corporation’s 2016 Annual Report on Form 10-K. There have been no changes in the Corporation's application of critical accounting policies since December 31, 2016.
Future Accounting Pronouncements
New accounting policies adopted by the Corporation are discussed in Note 3 Summary of Significant Accounting Policies, of the notes to consolidated financial statements. The expected impact of accounting pronouncements recently issued or proposed but not yet required to be adopted are displayed in the table below.
Standard Description Date of adoption Effect on financial statements
ASU 2017-12 Derivatives and Hedging (Topic 815): Targeted Improvements to Accounting for Hedging ActivitiesThe FASB issued the amendment to better align a company’s financial reporting for hedging activities with the economic objectives of those activities for both financial (e.g., interest rate) and commodity risks. The provisions create more transparency around how economic results are presented, both on the face of the financial statements and in the footnotes. It also contains targeted improvements to simplify the application of hedge accounting guidance. This amendment is effective for fiscal years beginning after December 15, 2018, including interim periods within those fiscal years. Entities should apply the amendment on a modified retrospective transition method in which the cumulative effect of the change will be recognized within equity in the consolidated balance sheet as of the date of adoption. Early adoption is permitted, including in an interim period. If an entity early adopts in an interim period, any adjustments should be reflected as of the beginning of the fiscal year that includes the interim period.1st Quarter 2019For the Corporation to date, all notional amounts of customer derivative transactions have been matched with a mirror derivative transaction with another counterparty. The Corporation has used, and may use again in the future, derivative instruments to hedge the variability in interest payments or protect the value of certain assets and liabilities recorded on its consolidated balance sheets from changes in interest rates. Therefore, the new ASU is not currently applicable; however, there is the potential the standard could apply in the future if such arrangements begin to occur.


StandardDescriptionDate of adoptionEffect on financial statements
ASU 2017-07 Compensation — Retirement Benefits (Topic 715): Improving the Presentation of Net Periodic Pension Cost and Net Periodic Postretirement Benefit Cost The FASB issued the update to improve the presentation of net periodic pension cost and net periodic postretirement benefit cost, including a requirement that employers disaggregate the service cost component from the other components of net benefit cost. In addition, the amendments provide explicit guidance on how to present the service cost component and the other components of net benefit cost in the income statement and allow only the service cost component of net benefit cost to be eligible for capitalization. This amendment is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Entities should apply the amendment retrospectively to each period presented and prospectively only for the capitalization component. Early adoption is permitted, but should be within the first interim period if interim financial statements are issued. 1st Quarter 2018 TheUpon adoption, the Corporation is currently evaluating thewill have a slight change in presentation, and an immaterial impact onto its results of operations, financial position, and liquidity.
ASU 2017-04 Intangibles - Goodwill and Other (Topic 350): Simplifying the Test for Goodwill Impairment The FASB issued an amendment to simplify the subsequent quantitative measurement of goodwill by eliminating step two from the goodwill impairment test. Instead, an entity will perform only step one of its quantitative goodwill impairment test by comparing the fair value of a reporting unit with its carrying amount, and then recognizing an impairment charge for the amount by which the carrying amount exceeds the reporting unit's fair value; however, the loss recognized should not exceed the total amount of goodwill allocated to that reporting unit. An entity will still have the option to perform a qualitative assessment for a reporting unit to determine if the quantitative step one impairment test is necessary. This amendment is effective for annual or interim goodwill impairment tests in fiscal years beginning after December 15, 2019. Entities should apply the amendment prospectively. Early adoption is permitted, including in an interim period, for impairment tests performed after January 1, 2017. The Corporation has not had to perform a step one quantitative analysis since 2012, which concluded no impairment was necessary. 2nd Quarter 2020, consistent with the Corporation's annual impairment test in May of each year. The Corporation is currently evaluating the impact on its results of operations, financial position, and liquidity.
ASU 2017-01 Business Combinations (Topic 805): Clarifying the Definition of a Business 
The FASB issued amendments to clarify the definition of a business in order to assist entities with evaluating whether transactions should be accounted for as acquisitions (or disposals) of assets versus businesses. The new standard narrows the definition of a business by adding three principal clarifications:clarifications if: (1) If substantially all the fair value of the gross assets in the asset group is concentrated in either a single identifiable asset or group of similar identifiable assets the transaction does not involve a business (2) If the asset group does not include a minimum of an input and a substantive process, it does not represent a business, and (3) If the integrated set of activities (including its inputs and processes) does not create, or have the ability to create, goods or services to customers, investment income (e,g. dividends or interest) or other revenues, it is not a business. The overall intention is to provide consistency in applying the guidance, reduce the costs of application, and make the definition of a business more operable.


 1st Quarter 2018 
The Corporation is currently evaluatinghas evaluated adoption of the new guidance and determined it will not have a material impact on its results of operations, financial position, andor liquidity.


StandardDescriptionDate of adoptionEffect on financial statements
ASU 2016-18 Statement of Cash Flows (Topic 230): Restricted Cash The FASB issued an amendment to improve GAAP by providing guidance on the presentation of restricted cash or restricted cash equivalents in the statement of cash flows, in order to reduce diversity in practice. The amendment requires that a statement of cash flow explain the change during the period in the total 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 in cash and cash equivalents when reconciling the beginning and end of period total amounts shown on the statement of cash flow. This amendment is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Entities should apply the amendment retrospectively to each period presented. Early adoption is permitted, including in an interim period. 1st Quarter 2018 TheUpon adoption, the Corporation is currently evaluating thewill have a slight change in presentation, and an immaterial impact onto its results of operations, financial position, and liquidity.
ASU 2016-16 Income Taxes (Topic 740): Intra-Entity Transfers of Assets Other Than Inventory 
The FASB issued an amendment requiring an entity to recognize income tax consequences on an intra-entity transfer of an asset other than inventory at the time the transaction occurs. This amendment is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Entities should apply the amendment by means of a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. Early adoption is permitted for all entities in the first interim period if an entity issues interim financial statements.


 1st Quarter 2018 No
The Corporation has evaluated adoption of the new guidance and determined it will not have a material impact expected on ourits results of operations, financial position, andor liquidity.

ASU 2016-15 Statement of Cash Flows (Topic 230): Classification of Certain Cash Receipts and Cash Payments The FASB issued an amendment to provide clarification on where to classify cash flows involving certain cash receipts and cash payments. Under the new guidance, cash payments for debt prepayment or debt extinguishment costs should be classified as cash outflows for financing activities. The new guidance also details the specific classification of contingent consideration cash payments made after a business combination depending on the timing of payments. Lastly, cash proceeds received from corporate owned life insurance policies (including BOLI) should be classified as cash inflows from investing, while the cash payments for the premiums may be classified as cash outflows for investing, operating, or a combination of both. This amendment is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Entities should apply the amendment retrospectively to each period presented. Early adoption is permitted, including in an interim period; however, all of the amendments must be adopted in the same period. 1st Quarter 2018 The Corporation is currently evaluating the impact on its results of operations, financial position, and liquidity.


StandardDescriptionDate of adoptionEffect on financial statements
ASU 2016-13 Financial Instruments - Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments The FASB issued an amendment to replace the current incurred loss impairment methodology. Under the new guidance, entities will be required to measure expected credit losses by utilizing forward-looking information to assess an entity's allowance for credit losses. The guidance also requires consideration of a broader range of reasonable and supportable information to inform credit loss estimates. The measurement of expected credit losses is based on relevant information about past events, including historical experience, current conditions, and reasonable and supportable forecasts that affect the collectability of the reported amount. An entity must use judgment in determining the relevant information and estimation methods that are appropriate in its circumstances. This amendment is effective for fiscal years beginning after December 15, 2019, including interim periods within those fiscal years. Entities should apply the amendment by means of a cumulative-effect adjustment to retained earnings as of the beginning of the fiscal year of adoption. Early adoption is permitted. 1st Quarter 2020 The Corporation is currently evaluating the impact on its results of operations, financial position, and liquidity.
ASU 2016-02 Leases (Topic 842) The FASB issued an amendment to provide transparency and comparability among organizations by recognizing lease assets and lease liabilities on the balance sheet and disclosing key information about leasing arrangements. This amendment will require lessees to recognize the following for all leases (with the exception of short-term leases) at the commencement date: 1) a lease liability, which is a lessee's obligation to make lease payments arising from a lease, measured on a discounted basis; and 2) a right-of-use asset, which is an asset that represents the lessee's right to use, or control the use of, a specified asset for the lease term. Under the new guidance, lessor accounting is largely unchanged. This amendment is effective for annual periods, and interim periods within those annual periods, beginning after December 15, 2018. Entities are required to recognize and measure leases at the beginning of the earliest period presented using a modified retrospective approach. The modified retrospective approach includes a number of optional practical expedients that entities may elect to apply. These practical expedients relate to the identification and classification of leases that commenced before the effective date, initial direct costs for leases that commenced before the effective date, and the ability to use hindsight in evaluating lessee options to extend or terminate a lease or to purchase the underlying asset. Early adoption is permitted. 1st Quarter 2019 The Corporation is currently evaluating the impact on its results of operations, financial position, and liquidity.


StandardDescriptionDate of adoptionEffect on financial statements
ASU 2016-01 Financial Instruments - Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities The FASB issued an amendment to address certain aspects of recognition, measurement, presentation, and disclosure of financial instruments. This amendment supersedes the guidance to classify equity securities with readily determinable fair values into different categories, requires equity securities to be measured at fair value with changes in the fair value recognized through net income, and simplifies the impairment assessment of equity investments without readily determinable fair values. The amendment requires public business entities that are required to disclose the fair value of financial instruments measured at amortized cost on the balance sheet to measure that fair value using the exit price notion. The amendment requires an entity to present separately in other comprehensive income the portion of the total change in the fair value of a liability resulting from a change in the instrument-specific credit risk when the entity has elected to measure the liability at fair value in accordance with the fair value option. The amendment requires separate presentation of financial assets and financial liabilities by measurement category and form of financial asset on the balance sheet or in the accompanying notes to the financial statements. The amendment reduces diversity in current practice by clarifying that an entity should evaluate the need for a valuation allowance on a deferred tax asset related to available for sale securities in combination with the entity’s other deferred tax assets. This amendment is effective for fiscal years beginning after December 15, 2017, including interim periods within those fiscal years. Entities are required to apply the amendment by means of a cumulative-effect adjustment as of the beginning of the fiscal year of adoption, with the exception of the amendment related to equity securities without readily determinable fair values, which should be applied prospectively to equity investments that exist as of the date of adoption. 1st Quarter 2018 The Corporation is currently evaluatinghas evaluated adoption of the new guidance and determined it will not have a material impact on its results of operations, financial position, andor liquidity.


StandardDescriptionDate of adoptionEffect on financial statements
ASU 2014-09 Revenue from Contracts with Customers (Topic 606) The FASB issued an amendment to clarify the principles for recognizing revenue and to develop a common revenue standard. The standard outlines a single comprehensive model for entities to use in accounting for revenue arising from contracts with customers and supersedes most current revenue recognition guidance, including industry-specific guidance. The core principle of the revenue model is that “an entity recognizes revenue to depict the transfer of promised goods or services to customers in an amount that reflects the consideration to which the entity expects to be entitled in exchange for those goods or services.” In applying the revenue model to contracts within its scope, an entity should apply the following steps: (1) Identifyidentify the contract(s) with a customer, (2) Identifyidentify the performance obligations in the contract, (3) Determinedetermine the transaction price, (4) Allocateallocate the transaction price to the performance obligations in the contract, and (5) Recognizerecognize revenue when (or as) the entity satisfies a performance obligation. The standard applies to all contracts with customers except those that are within the scope of other topics in the FASB Codification. The standard also requires significantly expanded disclosures about revenue recognition. The FASB continues to release new accounting guidance related to the adoption of this standard, which could impact the Corporation's preliminary materiality analysis and may change the conclusions reached as to the application of this new guidance. The amendment was originally to be effective for annual reporting periods beginning after December 15, 2016 (including interim reporting periods within those periods); however, in July 2015, the FASB approved a one year deferral of the effective date to December 31, 2017. Early application is not permitted. 1st Quarter 2018 More than 69%70% of the Corporation’s revenue comes from net interest income and is explicitly out of scope of the guidance. The primary contracts in-scope ofsubject to the guidance is expected to beinclude service charges on deposit accounts, card-based and other nondeposit fees, trust service fees, brokerage and annuity commissions, and insurance commissions among others. The Corporation is currently in the process of reviewing the noninterest income contracts pertaining to the guidance by analyzing contracts and current accounting practices to determine if a change in accounting practices is appropriate. This comprehensive review is expected to be completed in the third quarter of 2017.commissions. The Corporation's preliminary analysis suggests thatindicates the adoption of this accounting standard is not expected to have a material impact on the Corporation's consolidatedresults of operations, financial statements.position, or liquidity. The new standard is largely consistent with the existing guidance and current practices applied by our businesses. The Corporation is in the process of evaluating the expanded disclosures. We plan to adopt this guidance using the modified retrospective approach and are extensively into our implementation plan.
Recent Developments
The Corporation completed its previously announced acquisition of Whitnell & Co., a wealth management family services firm based in Oak Brook, IL, on October 2, 2017. Whitnell has approximately $1.0 billion in assets under management. The acquisition is expected to increase both the Corporation’s assets under management and related run-rate revenue by more than 10%. The transaction is not expected to have a material impact on the Corporation’s 2017 earnings, but is expected to be accretive to 2018 earnings.

For recent developments on litigation related to the acquisition of Bank Mutual, see Note 12 Commitments, Off-Balance Sheet Arrangements, Legal Proceedings and Regulatory Matters.

On April 25,October 24, 2017, the Corporation’s Board of Directors declared a regular quarterly cash dividend of $0.12$0.14 per common share, payable on JuneDecember 15, 2017 to shareholders of record at the close of business on JuneDecember 1, 2017.  This is an increase of $0.02 from the previous quarterly dividend of $0.12 per common share. The Board of Directors also declared a regular quarterly cash dividend of $0.3828125 per depositary share on Associated Banc-Corp’sthe Corporation’s 6.125% Series C Perpetual Preferred Stock, and a regular quarterly cash dividend of $0.3359375 per depositary share on Associated Banc-Corp’s 5.375% Series D Perpetual Preferred Stock payable on JuneDecember 15, 2017 to shareholders of record at the close of business on JuneDecember 1, 2017. TheseThe Board of Directors also declared a regular quarterly cash dividends have not been reflected individend of $0.3359375 per depositary share on the accompanying consolidated financial statements.

On April 18,Corporation’s 5.375% Series D Perpetual Preferred Stock, payable on December 15, 2017 to shareholders of record at the Bank received a favorable ruling in Associated Bank, N.A, et al v. Commissionerclose of Revenue in the Minnesota Tax Court regarding a Minnesota franchise tax liability issue for tax years 2007 and 2008. The Bank has reserved approximately $2 million related to the Minnesota franchise tax issue for these years. Subject to a possible appeal by the Minnesota Commissioner of Revenue, other further appellate proceedings, or settlement of the case, some portion or all of this reserve may be released in the second quarter or subsequent periods.business on December 1, 2017.







ITEM 3.    Quantitative and Qualitative Disclosures About Market Risk
Information required by this item is set forth in Item 2 under the captions “QuantitativeQuantitative and Qualitative Disclosures about Market Risk”Risk and “InterestInterest Rate Risk.
ITEM 4.    Controls and Procedures
The Corporation maintains disclosure controls and procedures as required under Rule 13a-15 promulgated under the Securities Exchange Act of 1934, as amended (the “Exchange Act”), that are designed to ensure that information required to be disclosed in our Exchange Act reports is recorded, processed, summarized and reported within the time periods specified in the SEC’s rules and forms, and that such information is accumulated and communicated to the Corporation’s management, including its Chief Executive Officer and Chief Financial Officer, as appropriate, to allow timely decisions regarding required disclosure.
As of March 31,September 30, 2017 the Corporation’s management carried out an evaluation, under the supervision and with the participation of the Corporation’s Chief Executive Officer and Chief Financial Officer, of the effectiveness of its disclosure controls and procedures. Based on the foregoing, its Chief Executive Officer and Chief Financial Officer concluded that the Corporation’s disclosure controls and procedures were effective as of March 31,September 30, 2017.
No changes were made to the Corporation’s internal control over financial reporting (as defined in Rule 13a-15(f) of the Exchange Act of 1934) during the last fiscal quarter that have materially affected, or are reasonably likely to materially affect, the Corporation’s internal control over financial reporting.




PART II - OTHER INFORMATION
ITEM 1.Legal Proceedings


The information required by this item is set forth in Part I, Item 1 under Note 12 Commitments, Off-Balance Sheet Arrangements, Legal Proceedings and Legal Proceedings.Regulatory Matters.
ITEM 2.Unregistered Sales of Equity Securities and Use of Proceeds
Other than 308,499During the third quarter of 2017, the Corporation repurchased $37 million, or approximately 1.6 million shares, of common stock repurchased to satisfy minimum tax withholding on settlements of equity compensation awards,stock. The repurchase details are presented in the Corporation did not make any common stock or depositary share repurchases during the first quarter of 2017. On April 21, 2015, the Board of Directors authorized the repurchase of up to $125 million of the Corporation's common stock, of which approximately $88 million remained available to repurchase as of March 31,table below.
 
Total Number  of
Shares Purchased
(a)
 Average Price
Paid per Share
 Total Number of
Shares Purchased as
Part of Publicly
Announced Plans
or Programs
 
Maximum Number of
Shares that May Yet
Be Purchased Under
the Plans
or Programs
(b)
Period       
July 1, 2017 - July 31, 20171,556,473
 $23.59
 1,556,473
 
August 1, 2017 - August 31, 201713,028
 23.99
 13,028
 
September 1, 2017 - September 30, 2017
 
 
 
Total1,569,501
 $23.59
 1,569,501
 2,103,093
(a)During the third quarter of 2017, the Corporation repurchased approximately 7,200 common shares for minimum tax withholding settlements on equity compensation. These purchases do not count against the maximum number of shares that may yet be purchased under the Board of Directors’ authorization.
(b)On April 21, 2015, the Board of Directors authorized the repurchase of up to $125 million of the Corporation's common stock, of which approximately $51 million remained available to repurchase as of September 30, 2017. Using the closing stock price on September 30, 2017 of $24.25, a total of approximately 2.1 million shares of common stock remained available to be repurchased under the previously approved Board authorizations as of September 30, 2017.

On August 28, 2015, the Board of Directors authorized the repurchase of up to $10 million of depositary shares of the Series C Preferred Stock, of which all remained available to repurchase as of March 31,September 30, 2017. Additionally, on July 25, 2017, the Board of Directors authorized the repurchase of up to $15 million of depositary shares of the Series D Preferred Stock, of which all remained available to repurchase as of September 30, 2017. The repurchase of shares will beis based on market and investment opportunities, capital levels, growth prospects, and regulatory constraints. Such repurchases may occur from time to time in open market purchases, block transactions, private transactions, accelerated share repurchase programs, or similar facilities.

ITEM 6.Exhibits
(a)    Exhibits:
Exhibit (11), Statement regarding computation of per share earnings. See Note 4 of the notes to consolidated financial statements in Part I Item 1.
Exhibit (11), Statement regarding computation of per share earnings. The information required by this item is set forth in Part I, Item 1 under Note 4 Earnings Per Common Share.
Exhibit (101), Interactive data files pursuant to Rule 405 of Regulation S-T: (i) Unaudited Consolidated Balance Sheets, (ii) Unaudited Consolidated Statements of Income, (iii) Unaudited Consolidated Statements of Comprehensive Income, (iv) Unaudited Consolidated Statements of Changes in Stockholders’ Equity, (v) Unaudited Consolidated Statements of Cash Flows, and (vi) Notes to Consolidated Financial Statements.
Exhibit (31.2), Certification Under Section 302 of Sarbanes-Oxley by Christopher J. Del Moral-Niles, Chief Financial Officer.(a) Management contracts and arrangements.
Exhibit (32), Certification by the Chief Executive Officer and Chief Financial Officer Pursuant to 18 U.S.C. Section 1350, as Adopted Pursuant to Section 906 of Sarbanes-Oxley.
Exhibit (101), Interactive data files pursuant to Rule 405 of Regulation S-T: (i) Unaudited Consolidated Balance Sheets, (ii) Unaudited Consolidated Statements of Income, (iii) Unaudited Consolidated Statements of Comprehensive Income, (iv) Unaudited Consolidated Statements of Changes in Stockholders’ Equity, (v) Unaudited Consolidated Statements of Cash Flows, and (vi) Notes to Consolidated Financial Statements.




SIGNATURES
Pursuant to the requirements of the Securities Exchange Act of 1934, the registrant has duly caused this report to be signed on its behalf by the undersigned hereunto duly authorized.
   
  ASSOCIATED BANC-CORP
  (Registrant)
   
Date: April 27,October 26, 2017 /s/ Philip B. Flynn
  Philip B. Flynn
  President and Chief Executive Officer
   
Date: April 27,October 26, 2017 /s/ Christopher J. Del Moral-Niles
   Christopher J. Del Moral-Niles
  Chief Financial Officer
   
Date: April 27,October 26, 2017 /s/ Tammy C. Stadler
  Tammy C. Stadler
  Principal Accounting Officer


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