UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
FORM 10-Q
ýQUARTERLY REPORT PURSUANT TO SECTION 13 OR 15(d) OF THE SECURITIES EXCHANGE ACT OF 1934
For the quarterly period ended JuneSeptember 30, 2016
or
¨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 001-12307
ZIONS BANCORPORATION
(Exact name of registrant as specified in its charter)
UTAH87-0227400
(State or other jurisdiction of
incorporation or organization)
(I.R.S. Employer
Identification No.)
  
One South Main, 15th Floor
Salt Lake City, Utah
84133
(Address of principal executive offices)(Zip Code)
Registrant’s telephone number, including area code: (801) 844-7637
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  ý    No  ¨
Indicate by check mark whether the registrant has submitted electronically and posted on its corporate Web site, 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  ý    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. See the definitions of “large accelerated filer,” “accelerated filer” and “smaller reporting company” in Rule 12b-2 of the Exchange Act.
Large accelerated filerýAccelerated filer¨
    
Non-accelerated filer¨Smaller reporting company¨
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).    Yes  ¨    No  ý
Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.
Common Stock, without par value, outstanding at July 29,October 31, 2016205,110,866203,718,022 shares

ZIONS BANCORPORATION AND SUBSIDIARIES
Table of Contents


  Page
 
   
Item 1. 
   
 
 
 
 
 
 
   
Item 2.
   
Item 3.
   
Item 4.
  
 
   
Item 1.
   
Item 1A.
   
Item 2.
   
Item 6.
  

Table of Contents

PART I.FINANCIAL INFORMATION
ITEM 1.
FINANCIAL STATEMENTS (Unaudited)
ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED BALANCE SHEETS
(In thousands, except shares)
June 30,
2016
 December 31,
2015
September 30,
2016
 December 31,
2015
(Unaudited)  (Unaudited)  
ASSETS      
Cash and due from banks$560,262
 $798,319
$553,152
 $798,319
Money market investments:      
Interest-bearing deposits2,154,959
 6,108,124
1,489,134
 6,108,124
Federal funds sold and security resell agreements620,469
 619,758
1,675,645
 619,758
Investment securities:      
Held-to-maturity, at amortized cost (approximate fair value $720,991 and $552,088)713,392
 545,648
Held-to-maturity, at amortized cost (approximate fair value $717,822 and $552,088)715,279
 545,648
Available-for-sale, at fair value9,477,089
 7,643,116
10,358,083
 7,643,116
Trading account, at fair value118,775
 48,168
108,004
 48,168
10,309,256
 8,236,932
11,181,366
 8,236,932
Loans held for sale146,512
 149,880
160,287
 149,880
Loans and leases, net of unearned income and fees42,501,575
 40,649,542
42,539,720
 40,649,542
Less allowance for loan losses608,345
 606,048
597,185
 606,048
Loans held for investment, net of allowance41,893,230
 40,043,494
41,942,535
 40,043,494
Other noninterest-bearing investments850,578
 848,144
894,110
 848,144
Premises and equipment, net955,540
 905,462
Premises, equipment and software, net986,553
 905,462
Goodwill1,014,129
 1,014,129
1,014,129
 1,014,129
Core deposit and other intangibles12,281
 16,272
10,329
 16,272
Other real estate owned8,354
 7,092
8,358
 7,092
Other assets1,117,422
 916,937
1,123,262
 916,937
$59,642,992
 $59,664,543
$61,038,860
 $59,664,543
LIABILITIES AND SHAREHOLDERS’ EQUITY      
Deposits:      
Noninterest-bearing demand$22,276,600
 $22,276,664
$22,710,778
 $22,276,664
Interest-bearing:      
Savings and money market25,540,525
 25,672,356
25,502,628
 25,672,356
Time2,336,088
 2,130,680
2,516,493
 2,130,680
Foreign117,708
 294,391
118,762
 294,391
50,270,921
 50,374,091
50,848,661
 50,374,091
Federal funds and other short-term borrowings270,255
 346,987
1,115,561
 346,987
Long-term debt698,712
 812,366
570,385
 812,366
Reserve for unfunded lending commitments64,780
 74,838
61,615
 74,838
Other liabilities711,941
 548,742
763,331
 548,742
Total liabilities52,016,609
 52,157,024
53,359,553
 52,157,024
Shareholders’ equity:      
Preferred stock, without par value, authorized 4,400,000 shares709,601
 828,490
709,601
 828,490
Common stock, without par value; authorized 350,000,000 shares; issued and outstanding 205,103,566 and 204,417,093 shares4,783,061
 4,766,731
Common stock, without par value; authorized 350,000,000 shares; issued and outstanding 203,850,072 and 204,417,093 shares4,747,912
 4,766,731
Retained earnings2,110,069
 1,966,910
2,211,793
 1,966,910
Accumulated other comprehensive income (loss)23,652
 (54,612)10,001
 (54,612)
Total shareholders’ equity7,626,383
 7,507,519
7,679,307
 7,507,519
$59,642,992
 $59,664,543
$61,038,860
 $59,664,543
See accompanying notes to consolidated financial statements.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME
(Unaudited)
ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME
(Unaudited)
ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF INCOME
(Unaudited)
(In thousands, except per share amounts)Three Months Ended
June 30,
 Six Months Ended
June 30,
Three Months Ended
September 30,
 Nine Months Ended
September 30,
2016 2015 2016 20152016 2015 2016 2015
Interest income:              
Interest and fees on loans$433,743
 $420,642
 $854,251
 $836,397
$436,424
 $419,981
 $1,290,675
 $1,256,378
Interest on money market investments5,564
 5,785
 12,593
 11,003
4,934
 6,018
 17,527
 17,021
Interest on securities47,645
 28,809
 95,009
 56,282
49,337
 30,231
 144,346
 86,513
Total interest income486,952
 455,236
 961,853
 903,682
490,695
 456,230
 1,452,548
 1,359,912
Interest expense:              
Interest on deposits11,869
 12,321
 23,714
 24,425
12,549
 12,542
 36,263
 36,967
Interest on short- and long-term borrowings10,234
 19,211
 20,448
 38,207
8,959
 18,311
 29,407
 56,518
Total interest expense22,103
 31,532
 44,162
 62,632
21,508
 30,853
 65,670
 93,485
Net interest income464,849
 423,704
 917,691
 841,050
469,187
 425,377
 1,386,878
 1,266,427
Provision for loan losses34,492
 566
 76,637
 (928)18,825
 18,262
 95,462
 17,334
Net interest income after provision for loan losses430,357
 423,138
 841,054
 841,978
450,362
 407,115
 1,291,416
 1,249,093
Noninterest income:              
Service charges and fees on deposit accounts42,108
 41,616
 83,369
 82,810
44,490
 43,196
 127,859
 126,006
Other service charges, commissions and fees51,906
 46,602
 101,380
 89,604
54,141
 47,968
 155,521
 137,572
Wealth management income8,788
 8,160
 16,742
 15,775
9,973
 7,496
 26,715
 23,271
Loan sales and servicing income10,178
 8,382
 18,157
 16,088
11,301
 7,728
 29,458
 23,816
Capital markets and foreign exchange4,545
 7,275
 10,212
 12,776
5,726
 6,624
 15,938
 19,400
Dividends and other investment income6,226
 9,343
 10,865
 18,715
9,045
 8,449
 19,910
 27,164
Fair value and nonhedge derivative income (loss)(1,910) 1,844
 (4,495) 756
Fair value and nonhedge derivative loss(184) (1,555) (4,679) (799)
Equity securities gains, net2,709
 4,839
 2,159
 8,192
8,441
 3,630
 10,600
 11,822
Fixed income securities gains (losses), net25
 (138,436) 53
 (138,675)39
 (53) 92
 (138,728)
Other1,142
 5,693
 4,036
 6,615
1,915
 2,461
 5,951
 9,076
Total noninterest income125,717
 (4,682) 242,478
 112,656
144,887
 125,944
 387,365
 238,600
Noninterest expense:              
Salaries and employee benefits241,341
 251,133
 499,679
 494,652
242,251
 242,023
 741,930
 736,675
Occupancy, net29,621
 30,095
 59,400
 59,434
33,536
 29,477
 92,936
 88,911
Furniture, equipment and software30,550
 31,247
 62,565
 60,960
Furniture, equipment and software, net29,090
 30,416
 91,655
 91,376
Other real estate expense, net(527) (445) (1,856) (71)(137) (40) (1,993) (111)
Credit-related expense5,845
 8,106
 11,779
 14,045
6,825
 6,914
 18,604
 20,959
Provision for unfunded lending commitments(4,246) (2,326) (10,058) (1,115)(3,165) 1,428
 (13,223) 313
Professional and legal services12,229
 13,110
 23,700
 24,593
14,473
 12,699
 38,173
 37,292
Advertising5,268
 6,511
 10,896
 13,486
5,985
 6,136
 16,881
 19,622
FDIC premiums9,580
 8,609
 16,734
 16,728
11,673
 8,500
 28,407
 25,228
Amortization of core deposit and other intangibles1,979
 2,318
 3,993
 4,676
1,951
 2,298
 5,944
 6,974
Debt extinguishment cost106
 2,395
 353
 2,395

 
 353
 2,395
Other50,148
 48,244
 100,282
 102,191
60,810
 51,429
 161,092
 153,620
Total noninterest expense381,894
 398,997
 777,467
 791,974
403,292
 391,280
 1,180,759
 1,183,254
Income before income taxes174,180
 19,459
 306,065
 162,660
191,957
 141,779
 498,022
 304,439
Income taxes60,231
 5,499
 101,679
 56,675
64,694
 40,780
 166,373
 97,455
Net income113,949
 13,960
 204,386
 105,985
127,263
 100,999
 331,649
 206,984
Dividends on preferred stock(13,543) (15,060) (25,203) (31,806)(10,368) (16,761) (35,571) (48,567)
Preferred stock redemption(9,759) 
 (9,759) 

 
 (9,759) 
Net earnings applicable to common shareholders$90,647
 $(1,100) $169,424
 $74,179
$116,895
 $84,238
 $286,319
 $158,417
Weighted average common shares outstanding during the period:              
Basic shares204,236
 202,888
 204,113
 202,746
204,312
 203,668
 204,180
 203,057
Diluted shares204,536
 202,888
 204,317
 203,295
204,714
 204,155
 204,425
 203,511
Net earnings per common share:              
Basic$0.44
 $(0.01) $0.82
 $0.36
$0.57
 $0.41
 $1.39
 $0.77
Diluted0.44
 (0.01) 0.82
 0.36
0.57
 0.41
 1.39
 0.77
See accompanying notes to consolidated financial statements.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(Unaudited)

ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(Unaudited)

ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF COMPREHENSIVE INCOME
(Unaudited)

 Three Months Ended
June 30,
 Six Months Ended
June 30,
Three Months Ended
September 30,
 Nine Months Ended
September 30,
(In thousands) 2016 2015 2016 20152016 2015 2016 2015
               
Net income for the period $113,949
 $13,960
 $204,386
 $105,985
$127,263
 $100,999
 $331,649
 $206,984
Other comprehensive income, net of tax:        
Other comprehensive income (loss), net of tax:       
Net unrealized holding gains (losses) on investment securities 32,859
 (7,294) 65,027
 (6,808)(10,711) 11,268
 54,316
 4,460
Reclassification of HTM securities to AFS securities 
 
 
 10,938
Reclassification of held-to-maturity securities to available-for-sale securities
 
 
 10,938
Reclassification to earnings for realized net fixed income securities losses (gains) (16) 85,664
 (33) 85,812
(24) 33
 (57) 85,845
Net unrealized gains (losses) on other noninterest-bearing investments (566) 2,339
 (136) 1,975
2,158
 (1,881) 2,022
 94
Net unrealized holding gains (losses) on derivative instruments 4,850
 (219) 17,751
 2,334
(3,336) 10,607
 14,415
 12,941
Reclassification adjustment for increase in interest income recognized in earnings on derivative instruments (1,822) (753) (3,680) (1,382)(1,738) (1,830) (5,418) (3,212)
Pension and postretirement 
 
 (665) 

 
 (665) 
Other comprehensive income 35,305
 79,737
 78,264
 92,869
Other comprehensive income (loss)(13,651) 18,197
 64,613
 111,066
Comprehensive income $149,254
 $93,697
 $282,650
 $198,854
$113,612
 $119,196
 $396,262
 $318,050
See accompanying notes to consolidated financial statements.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY
(Unaudited)
ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY
(Unaudited)
ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CHANGES IN SHAREHOLDERS’ EQUITY
(Unaudited)
(In thousands, except shares
and per share amounts)
Preferred
stock
 Common stock Retained earnings 
Accumulated other
comprehensive income (loss)
 
Total
shareholders’ equity
Preferred
stock
 Common stock Retained earnings 
Accumulated other
comprehensive income (loss)
 
Total
shareholders’ equity
Shares Amount Shares Amount 
                          
Balance at December 31, 2015$828,490
 204,417,093
 $4,766,731
 $1,966,910
 $(54,612) $7,507,519
$828,490
 204,417,093
 $4,766,731
 $1,966,910
 $(54,612) $7,507,519
Net income for the period      204,386
   204,386
      331,649
   331,649
Other comprehensive income, net of tax        78,264
 78,264
        64,613
 64,613
Preferred stock redemption(118,889)   2,504
 (9,759)   (126,144)(118,889)   2,504
 (9,759)   (126,144)
Common stock redeemed and retired  (1,468,800) (45,029)     (45,029)
Net activity under employee plans and related tax benefits  686,473
 13,826
     13,826
  901,779
 23,706
     23,706
Dividends on preferred stock

     (25,203)   (25,203)

     (35,571)   (35,571)
Dividends on common stock, $0.12 per share      (24,753)   (24,753)
Dividends on common stock, $0.20 per share      (41,298)   (41,298)
Change in deferred compensation      (1,512)   (1,512)      (138)   (138)
Balance at June 30, 2016$709,601
 205,103,566
 $4,783,061
 $2,110,069
 $23,652
 $7,626,383
Balance at September 30, 2016$709,601
 203,850,072
 $4,747,912
 $2,211,793
 $10,001
 $7,679,307
                      
Balance at December 31, 2014$1,004,011
 203,014,903
 $4,723,855
 $1,769,705
 $(128,041) $7,369,530
$1,004,011
 203,014,903
 $4,723,855
 $1,769,705
 $(128,041) $7,369,530
Net income for the period      105,985
   105,985
      206,984
   206,984
Other comprehensive income, net of tax        92,869
 92,869
        111,066
 111,066
Subordinated debt converted to preferred stock21
   (6)     15
148
   (44)     104
Net activity under employee plans and related tax benefits  726,011
 14,423
     14,423
  1,263,691
 32,477
     32,477
Dividends on preferred stock

     (31,806)   (31,806)

     (48,567)   (48,567)
Dividends on common stock, $0.10 per share      (20,444)   (20,444)
Dividends on common stock, $0.16 per share      (32,785)   (32,785)
Change in deferred compensation      (397)   (397)      (714)   (714)
Balance at June 30, 2015$1,004,032
 203,740,914
 $4,738,272
 $1,823,043
 $(35,172) $7,530,175
Balance at September 30, 2015$1,004,159
 204,278,594
 $4,756,288
 $1,894,623
 $(16,975) $7,638,095
See accompanying notes to consolidated financial statements.

Table of Contents

ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(Unaudited)
ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(Unaudited)
ZIONS BANCORPORATION AND SUBSIDIARIES
CONSOLIDATED STATEMENTS OF CASH FLOWS
(Unaudited)
(In thousands)

Three Months Ended
June 30,
 Six Months Ended
June 30,
Three Months Ended
September 30,
 Nine Months Ended
September 30,
2016 2015 2016 20152016 2015 2016 2015
CASH FLOWS FROM OPERATING ACTIVITIES              
Net income for the period$113,949
 $13,960
 $204,386
 $105,985
$127,263
 $100,999
 $331,649
 $206,984
Adjustments to reconcile net income to net cash provided by operating activities:              
Provision for credit losses30,246
 (1,760) 66,579
 (2,043)15,660
 19,690
 82,239
 17,647
Depreciation and amortization45,297
 35,113
 86,033
 69,282
49,858
 40,281
 135,891
 109,563
Fixed income securities losses (gains), net(25) 138,436
 (53) 138,675
(39) 53
 (92) 138,728
Deferred income tax benefit(6,109) (44,431) (10,789) (41,029)
Net increase in trading securities(52,937) (2,899) (70,607) (3,920)
Deferred income tax expense (benefit)1,976
 (10,027) (8,813) (51,056)
Net decrease (increase) in trading securities10,771
 970
 (59,836) (2,950)
Net decrease (increase) in loans held for sale(35,309) (23,568) 3,257
 (20,051)(12,447) 23,314
 (9,190) 3,263
Change in other liabilities144,867
 (61,829) 162,637
 (36,263)53,051
 21,525
 215,688
 (14,738)
Change in other assets(225,202) 32,079
 (217,901) (33,169)(4,477) 31,178
 (222,378) (1,991)
Other, net(2,973) (70) 11,024
 (3,619)(13,337) (15,461) (2,313) (19,080)
Net cash provided by operating activities11,804
 85,031
 234,566
 173,848
228,279
 212,522
 462,845
 386,370
              
CASH FLOWS FROM INVESTING ACTIVITIES              
Net decrease (increase) in money market investments1,850,874
 (754,443) 3,952,454
 (501,169)(389,351) 1,181,378
 3,563,103
 680,209
Proceeds from maturities and paydowns of investment securities
held-to-maturity
10,415
 21,587
 32,451
 60,910
33,312
 26,875
 65,763
 87,785
Purchases of investment securities held-to-maturity(92,161) (1,485) (200,302) (24,061)(35,206) (142) (235,508) (24,203)
Proceeds from sales, maturities, and paydowns of investment securities available-for-sale475,056
 751,373
 2,573,582
 980,267
683,330
 385,584
 3,256,912
 1,365,851
Purchases of investment securities available-for-sale(1,243,709) (972,714) (4,366,953) (1,757,570)(1,606,852) (1,728,939) (5,973,805) (3,486,509)
Loans purchased(104,066) 
 (104,066) 

 
 (104,066) 
Other net change in loans held for investment(1,018,557) 148,336
 (1,826,915) 47,894
Purchases of premises and equipment(51,859) (33,835) (91,874) (67,368)
Net change in loans held for investment(73,217) (122,868) (1,900,132) (74,974)
Purchases of premises, equipment and software(51,307) (38,747) (143,181) (106,115)
Proceeds from sales of other real estate owned4,437
 5,172
 8,741
 8,573
6,405
 8,019
 15,146
 16,592
Other, net10,825
 25,974
 260
 29,325
(23,654) 17,610
 (23,394) 46,935
Net cash used in investing activities(158,745) (810,035) (22,622) (1,223,199)(1,456,540) (271,230) (1,479,162) (1,494,429)
              
CASH FLOWS FROM FINANCING ACTIVITIES              
Net increase (decrease) in deposits406,633
 813,764
 (79,601) 1,089,049
576,129
 (16,977) 496,528
 1,072,072
Net change in short-term funds borrowed38,067
 23,527
 (76,732) (17,099)845,306
 45,267
 768,574
 28,168
Cash paid for preferred stock redemption(126,144) 
 (126,144) 

 
 (126,144) 
Repayments of long-term debt(104,447) (44,420) (115,083) (52,605)(128,910) (111,477) (243,993) (164,082)
Proceeds from the issuance of common stock2,948
 5,070
 3,486
 6,032
4,661
 13,599
 8,147
 19,631
Dividends paid on common and preferred stock(22,795) (29,045) (50,216) (52,279)(30,891) (27,420) (81,107) (79,699)
Repurchases of company common stock through buyback program(45,029) 
 (45,029) 
Other, net(4,862) (6,512) (5,711) (7,451)(115) 172
 (5,826) (7,279)
Net cash provided by (used in) financing activities189,400
 762,384
 (450,001) 965,647
1,221,151
 (96,836) 771,150
 868,811
Net increase (decrease) in cash and due from banks42,459
 37,380
 (238,057) (83,704)
Net decrease in cash and due from banks(7,110) (155,544) (245,167) (239,248)
Cash and due from banks at beginning of period517,803
 720,858
 798,319
 841,942
560,262
 758,238
 798,319
 841,942
Cash and due from banks at end of period$560,262
 $758,238
 $560,262
 $758,238
$553,152
 $602,694
 $553,152
 $602,694
              
Cash paid for interest$24,622
 $28,938
 $43,052
 $51,057
$18,243
 $22,162
 $61,295
 $73,219
Net cash paid for income taxes101,512
 92,326
 101,428
 91,826
52,510
 8,679
 153,938
 100,505
See accompanying notes to consolidated financial statements.

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ZIONS BANCORPORATION AND SUBSIDIARIES
NOTES TO CONSOLIDATED FINANCIAL STATEMENTS
(Unaudited)
JuneSeptember 30, 2016
1.BASIS OF PRESENTATION
The accompanying unaudited consolidated financial statements of Zions Bancorporation (“the Parent”) and its majority-owned subsidiaries (collectively “the Company,” “Zions,” “we,” “our,” “us”) have been prepared in accordance with U.S. generally accepted accounting principles (“GAAP”) for interim financial information and with the instructions to Form 10-Q and Article 10 of Regulation S-X. Accordingly, they do not include all of the information and footnotes required by GAAP for complete financial statements. In the opinion of management, all adjustments (consisting of normal recurring accruals) considered necessary for a fair presentation have been included. References to GAAP, including standards promulgated by the Financial Accounting Standards Board (“FASB”), are made according to sections of the Accounting Standards Codification (“ASC”). Changes to the ASC are made with Accounting Standards Updates (“ASU”) that include consensus issues of the Emerging Issues Task Force (“EITF”). In certain cases, ASUs are issued jointly with International Financial Reporting Standards (“IFRS”).
Operating results for the three and sixnine months ended JuneSeptember 30, 2016 and 2015 are not necessarily indicative of the results that may be expected in future periods. In preparing the consolidated financial statements, we are required to make estimates and assumptions that affect the amounts reported in the financial statements and accompanying notes. Actual results could differ from those estimates. The consolidated balance sheet at December 31, 2015 is from the audited financial statements at that date, but does not include all of the information and footnotes required by GAAP for complete financial statements. For further information, refer to the consolidated financial statements and footnotes thereto included in the Company’s 2015 Annual Report on Form 10-K. Certain prior period amounts have been reclassified to conform with the current period presentation. These reclassifications did not affect net income or shareholders’ equity.
Zions Bancorporation is a financial holding company headquartered in Salt Lake City, Utah, and with its subsidiaries, provides a full range of banking and related services. Following the close of business on December 31, 2015, the Company completed the merger of its subsidiary banks and other subsidiaries into a single bank, ZB, N.A. The Company continues to manage its banking operations through seven separately managed and branded segments in 11 Western and Southwestern states as follows: Zions Bank, in Utah, Idaho and Wyoming; Amegy Bank (“Amegy”), in Texas; California Bank & Trust (“CB&T”); National Bank of Arizona (“NBAZ”); Nevada State Bank (“NSB”); Vectra Bank Colorado (“Vectra”), in Colorado and New Mexico; and The Commerce Bank of Washington (“TCBW”), in Washington and Oregon. Pursuant to a Board resolution adopted November 21, 2014, The Commerce Bank of Oregon merged into TCBW following the close of business on March 31, 2015.



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2.RECENT ACCOUNTING PRONOUNCEMENTS
Standard Description Date of adoption Effect on the financial statements or other significant matters
       
Standards not yet adopted by the Company
       
ASU 2016-09, Stock Compensation (Topic 718): Improvements to Share-Based Payment Accounting The standard requires entities to recognize the income tax effects of share-based payment awards in the income statement when the awards vest or are settled (i.e. the additional paid-in capital pools will be eliminated). The guidance on employers’ accounting for an employee’s use of shares to satisfy the employer’s statutory income tax withholding obligation and for forfeitures is changing. The standard also provides an entity the option to make an entity-wide accounting policy election to either estimate the number of awards that are expected to vest or account for forfeitures when they occur. January 1, 2017 We are currently evaluating the potentialdo not expect this guidance will have a material impact of this new guidance on the Company’s financial statements.
       
ASU 2016-01, Financial Instruments – Overall (Subtopic 825-10): Recognition and Measurement of Financial Assets and Financial Liabilities The standard provides revised accounting guidance related to the accounting for and reporting of financial instruments. Some of the main provisions include:
– Equity investments that do not result in consolidation and are not accounted for under the equity method would be measured at fair value through net income, unless they qualify for the proposed practicability exception for investments that do not have readily determinable fair values.
– Changes in instrument-specific credit risk for financial liabilities that are measured under the fair value option would be recognized in other comprehensive income.
– Elimination of the requirement to disclose the methods and significant assumptions used to estimate the fair value of financial instruments carried at amortized cost. However it will require the use of exit price when measuring the fair value of financial instruments measured at amortized cost for disclosure purposes.
 January 1, 2018 We do not currently expect this new guidance will have a material impact on the Company’s financial statements.
       
ASU 2014-09, Revenue from Contracts with Customers (Topic 606), and subsequent related ASUs


 The core principle of the new guidance is that a company will recognize revenue when it transfers promised goods or services to customers in an amount that reflects the consideration to which the company expects to be entitled in exchange for those goods or services. The banking industry does not expect significant changes because major sources of revenue are from financial instruments that have been excluded from the scope of the new standard, (including loans, derivatives, debt and equity securities, etc.). However, these new standards affect other fees charged by banks, such as asset management fees, credit card interchange fees, deposit account fees, etc. Adoption may be made on a full retrospective basis with practical expedients, or on a modified retrospective basis with a cumulative effect adjustment. Early adoption of the guidance is permitted as of January 1, 2017. January 1, 2018 While we currently do not expect these standards will have a material impact on the Company’s financial statements, we are still in process of conducting our evaluation.
       
ASU 2016-02, Leases (Topic 842) The standard requires that a lessee recognize assets and liabilities for leases with lease terms of more than 12 months. The recognition, measurement, and presentation of expenses and cash flows arising from a lease by a lessee primarily will depend on its classification as a finance or operating lease. However, the standard will require both types of leases to be recognized on the balance sheet. It also requires disclosures to better understand the amount, timing, and uncertainty of cash flows arising from leases. These disclosures include qualitative and quantitative requirements, providing additional information about the amounts recorded in the financial statements. January 1, 2019 We are currently evaluating the potential impact of this new guidance on the Company’s financial statements.

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Standard Description Date of adoption Effect on the financial statements or other significant matters
       
Standards not yet adopted by the Company (continued)
       
ASU 2016-13,
Credit Losses (Topic 326): Measurement of Credit Losses on Financial Instruments
 The standard significantly changes how entities will measure credit losses for most financial assets and certain other instruments that are not measured at fair value through net income. The standard replaces today’s “incurred loss” approach with an “expected loss” model for instruments such as loans and held-to-maturity securities that are measured at amortized cost. The standard requires credit losses relating to available-for-sale debt securities to be recorded through an allowance for credit losses rather than a reduction of the carrying amount. It also changes the accounting for purchased credit-impaired debt securities and loans. The standard retains many of the current disclosure requirements in current GAAP and expands certain disclosure requirements. Early adoption of the guidance is permitted as of January 1, 2019. January 1, 2020 
While we expect this standard will have a material impact on the Company’s financial statements, we are still in process of conducting our evaluation.

       
Standards adopted by the Company
       
ASU 2015-02, Consolidation (Topic 810): Amendments to the Consolidation Analysis The new standard changes certain criteria in the variable interest model and the voting model to determine whether certain legal entities are variable interest entities (“VIEs”) and whether they should be consolidated. Additional disclosures are required for entities not currently considered VIEs, but may become VIEs under the new guidance and may be subject to consolidation. Adoption may be retrospective or modified retrospective with a cumulative effect adjustment. January 1, 2016 We currently do not consolidate any VIEs and our adoption of this standard did not have a material impact on the Company’s financial statements.
       
ASU 2015-03, Interest – Imputation of Interest (Subtopic 835-30): Simplifying the Presentation of Debt Issuance Costs The standard requires that debt issuance costs be presented in the balance sheet as a direct deduction from the carrying amount of the associated debt liability, consistent with debt discounts. Adoption is retrospective. January 1, 2016 Our adoption of this standard did not have a material impact on the accompanying financial statements.
       
ASU 2015-05, Intangibles – Goodwill and Other – Internal-Use Software (Subtopic 350-40): Customer’s Accounting for Fees Paid in a Cloud Computing Arrangement The standard provides guidance to determine whether an arrangement includes a software license. If it does, the customer accounts for it the same way as for other software licenses. If no software license is included, the customer accounts for it as a service contract. Adoption may be retrospective or prospective. January 1, 2016 We adopted this standard on a prospective basis and it did not have a material impact on the accompanying financial statements.
       
ASU 2015-07, Fair Value Measurement (Topic 820): Disclosures for Investments in Certain Entities That Calculate Net Asset Value per Share (or its Equivalent) The guidance eliminates the current requirement to categorize within the fair value hierarchy investments whose fair values are measured at net asset value (“NAV”) using the practical expedient in ASC 820. Fair value disclosure of these investments will be made to facilitate reconciliation to amounts reported on the balance sheet. Other related disclosures will continue when the NAV practical expedient is used. Adoption is retrospective. January 1, 2016 Our adoption of this standard did not have a material impact on the accompanying financial statements.

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3.SUPPLEMENTAL CASH FLOW INFORMATION
Noncash activities are summarized as follows:
(In thousands)Three Months Ended
June 30,
 Six Months Ended
June 30,
Three Months Ended
September 30,
 Nine Months Ended
September 30,
2016 2015 2016 20152016 2015 2016 2015
              
Loans held for investment transferred to other real estate owned$1,318
 $3,084
 $7,316
 $6,652
$6,167
 $3,446
 $13,483
 $10,098
Loans held for sale reclassified to (from) loans held for investment1,912
 (2,395) 3,888
 10,743
Loans held for sale reclassified to (from) loans held for investment, net(40,017) 22,299
 (36,129) 33,042
Adjusted cost of HTM securities reclassified as AFS securities
 
 
 79,276

 
 
 79,276
4.OFFSETTING ASSETS AND LIABILITIES
Gross and net information for selected financial instruments in the balance sheet is as follows:
 June 30, 2016 September 30, 2016
(In thousands)       Gross amounts not offset in the balance sheet         Gross amounts not offset in the balance sheet  
Description Gross amounts recognized Gross amounts offset in the balance sheet Net amounts presented in the balance sheet Financial instruments Cash collateral received/pledged Net amount Gross amounts recognized Gross amounts offset in the balance sheet Net amounts presented in the balance sheet Financial instruments Cash collateral received/pledged Net amount
                        
Assets:                        
Federal funds sold and security resell agreements $620,469
 $
 $620,469
 $
 $
 $620,469
 $1,675,645
 $
 $1,675,645
 $
 $
 $1,675,645
Derivatives (included in other assets) 152,466
 
 152,466
 (28,496) 
 123,970
 129,065
 
 129,065
 (20,419) (83) 108,563
 $772,935
 $
 $772,935
 $(28,496) $
 $744,439
 $1,804,710
 $
 $1,804,710
 $(20,419) $(83) $1,784,208
Liabilities:                        
Federal funds and other short-term borrowings $270,255
 $
 $270,255
 $
 $
 $270,255
 $1,115,561
 $
 $1,115,561
 $
 $
 $1,115,561
Derivatives (included in other liabilities) 127,757
 
 127,757
 (28,496) (89,151) 10,110
 111,929
 
 111,929
 (20,419) (86,478) 5,032
 $398,012
 $
 $398,012
 $(28,496) $(89,151) $280,365
 $1,227,490
 $
 $1,227,490
 $(20,419) $(86,478) $1,120,593
 December 31, 2015 December 31, 2015
(In thousands)       Gross amounts not offset in the balance sheet         Gross amounts not offset in the balance sheet  
Description Gross amounts recognized Gross amounts offset in the balance sheet Net amounts presented in the balance sheet Financial instruments Cash collateral received/pledged Net amount Gross amounts recognized Gross amounts offset in the balance sheet Net amounts presented in the balance sheet Financial instruments Cash collateral received/pledged Net amount
                        
Assets:                        
Federal funds sold and security resell agreements $619,758
 $
 $619,758
 $
 $
 $619,758
 $619,758
 $
 $619,758
 $
 $
 $619,758
Derivatives (included in other assets) 77,638
 
 77,638
 (6,990) 
 70,648
 77,638
 
 77,638
 (6,990) 
 70,648
 $697,396
 $
 $697,396
 $(6,990) $
 $690,406
 $697,396
 $
 $697,396
 $(6,990) $
 $690,406
Liabilities:                        
Federal funds and other short-term borrowings $346,987
 $
 $346,987
 $
 $
 $346,987
 $346,987
 $
 $346,987
 $
 $
 $346,987
Derivatives (included in other liabilities) 72,568
 
 72,568
 (6,990) (60,923) 4,655
 72,568
 
 72,568
 (6,990) (60,923) 4,655
 $419,555
 $
 $419,555
 $(6,990) $(60,923) $351,642
 $419,555
 $
 $419,555
 $(6,990) $(60,923) $351,642
Security repurchase and reverse repurchase (“resell”) agreements are offset, when applicable, in the balance sheet according to master netting agreements. Security repurchase agreements are included with “Federal funds and other short-term borrowings.” Derivative instruments may be offset under their master netting agreements; however, for accounting purposes, we present these items on a gross basis in the Company’s balance sheet. See Note 7 for further information regarding derivative instruments.


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5.
INVESTMENTS
Investment Securities
Investment securities are summarized below. Note 10 discusses the process to estimate fair value for investment securities.
June 30, 2016September 30, 2016
(In thousands)

Amortized
cost
 Gross unrealized gains Gross unrealized losses 
Estimated
fair value
Amortized
cost
 Gross unrealized gains Gross unrealized losses 
Estimated
fair value
Held-to-maturity              
Municipal securities$713,392
 $12,522
 $4,923
 $720,991
$715,279
 $11,220
 $8,677
 $717,822
Available-for-sale              
U.S. Government agencies and corporations:              
Agency securities1,668,158
 28,570
 600
 1,696,128
1,834,034
 23,104
 687
 1,856,451
Agency guaranteed mortgage-backed securities4,869,173
 46,097
 4,827
 4,910,443
5,438,880
 42,437
 7,028
 5,474,289
Small Business Administration loan-backed securities2,092,969
 11,383
 14,930
 2,089,422
2,192,844
 9,674
 16,105
 2,186,413
Municipal securities659,432
 14,144
 309
 673,267
768,875
 10,575
 1,205
 778,245
Other debt securities25,402
 141
 3,987
 21,556
25,380
 135
 2,546
 22,969
9,315,134
 100,335
��24,653
 9,390,816
10,260,013
 85,925
 27,571
 10,318,367
Money market mutual funds and other86,156
 117
 
 86,273
39,607
 109
 
 39,716
9,401,290
 100,452
 24,653
 9,477,089
10,299,620
 86,034
 27,571
 10,358,083
Total$10,114,682
 $112,974
 $29,576
 $10,198,080
$11,014,899
 $97,254
 $36,248
 $11,075,905
 December 31, 2015
(In thousands) 

Amortized
cost
 Gross unrealized gains Gross unrealized losses Estimated
fair value
Held-to-maturity       
Municipal securities$545,648
 $11,218
 $4,778
 $552,088
Available-for-sale       
U.S. Government agencies and corporations:       
Agency securities1,231,740
 4,313
 2,658
 1,233,395
Agency guaranteed mortgage-backed securities3,964,593
 7,919
 36,037
 3,936,475
Small Business Administration loan-backed securities1,932,817
 12,602
 14,445
 1,930,974
Municipal securities417,374
 2,177
 856
 418,695
Other debt securities25,454
 152
 2,665
 22,941
 7,571,978
 27,163
 56,661
 7,542,480
Money market mutual funds and other100,612
 61
 37
 100,636
 7,672,590
 27,224
 56,698
 7,643,116
Total$8,218,238
 $38,442
 $61,476
 $8,195,204
CDO Sales and Paydowns
During the second quarter of 2015, we sold the remaining portfolio of our collateralized debt obligation (“CDO”) securities, or $574 million at amortized cost, and realized net losses of approximately $137 million. During the first quarter of 2015, we reclassified all of the remaining held-to-maturity (“HTM”) CDO securities, or approximately $79 million at amortized cost, to Available-for-Sale (“AFS”) securities. The reclassification resulted from increased risk weights for these securities under the new Basel III capital rules, and was made in accordance with applicable accounting guidance that allows for such reclassifications when increased risk weights of debt securities must be used for regulatory risk-based capital purposes. No gain or loss was recognized in the statement of income at the time of reclassification.
Maturities
The amortized cost and estimated fair value of investment debt securities are shown subsequently as of JuneSeptember 30, 2016 by expected timing of principal payments. Actual principal payments may differ from contractual or expected

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principal payments because borrowers may have the right to call or prepay obligations with or without call or prepayment penalties.

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 Held-to-maturity Available-for-sale
(In thousands)
Amortized
cost
 
Estimated
fair
value
 
Amortized
cost
 
Estimated
fair
value
        
Principal return in one year or less$72,693
 $72,938
 $1,295,398
 $1,305,827
Principal return after one year through five years247,119
 251,539
 3,773,685
 3,801,514
Principal return after five years through ten years234,328
 239,120
 2,720,386
 2,753,721
Principal return after ten years159,252
 157,394
 1,525,665
 1,529,754
 $713,392
 $720,991
 $9,315,134
 $9,390,816

 Held-to-maturity Available-for-sale
(In thousands)
Amortized
cost
 
Estimated
fair value
 
Amortized
cost
 
Estimated
fair value
        
Principal return in one year or less$71,532
 $71,842
 $1,379,980
 $1,388,748
Principal return after one year through five years266,665
 269,636
 4,161,930
 4,184,444
Principal return after five years through ten years219,770
 223,701
 3,010,430
 3,034,823
Principal return after ten years157,312
 152,643
 1,707,673
 1,710,352
 $715,279
 $717,822
 $10,260,013
 $10,318,367
The following is a summary of the amount of gross unrealized losses for investment securities and the estimated fair value by length of time the securities have been in an unrealized loss position:
June 30, 2016September 30, 2016
Less than 12 months 12 months or more TotalLess than 12 months 12 months or more Total
(In thousands)
Gross
unrealized
losses
 
Estimated
fair
value
 
Gross
unrealized
losses
 
Estimated
fair
value
 
Gross
unrealized
losses
 
Estimated
fair
value
Gross
unrealized
losses
 
Estimated
fair
value
 
Gross
unrealized
losses
 
Estimated
fair
value
 
Gross
unrealized
losses
 
Estimated
fair
value
Held-to-maturity                      
Municipal securities$4,280
 $145,639
 $643
 $12,387
 $4,923
 $158,026
$7,911
 $261,162
 $766
 $11,845
 $8,677
 $273,007
Available-for-sale                      
U.S. Government agencies and corporations:                      
Agency securities87
 23,856
 513
 125,850
 600
 149,706
215
 230,565
 472
 122,379
 687
 352,944
Agency guaranteed mortgage-backed securities1,004
 271,185
 3,823
 386,971
 4,827
 658,156
2,646
 695,513
 4,382
 358,066
 7,028
 1,053,579
Small Business Administration loan-backed securities4,256
 582,167
 10,674
 552,261
 14,930
 1,134,428
3,256
 510,834
 12,849
 678,139
 16,105
 1,188,973
Municipal securities45
 24,682
 264
 13,879
 309
 38,561
907
 180,804
 298
 12,585
 1,205
 193,389
Other
 
 3,987
 11,016
 3,987
 11,016

 
 2,546
 12,457
 2,546
 12,457
5,392
 901,890
 19,261
 1,089,977
 24,653
 1,991,867
7,024
 1,617,716
 20,547
 1,183,626
 27,571
 2,801,342
Mutual funds and other
 
 
 
 
 

 
 
 
 
 
5,392
 901,890
 19,261
 1,089,977
 24,653
 1,991,867
7,024
 1,617,716
 20,547
 1,183,626
 27,571
 2,801,342
Total$9,672
 $1,047,529
 $19,904
 $1,102,364
 $29,576
 $2,149,893
$14,935
 $1,878,878
 $21,313
 $1,195,471
 $36,248
 $3,074,349
 December 31, 2015
 Less than 12 months 12 months or more Total
(In thousands)
 
Gross
unrealized
losses
 
Estimated
 fair
 value
 
Gross
unrealized
losses
 
Estimated
 fair
 value
 
Gross
unrealized
losses
 
Estimated
 fair
 value
Held-to-maturity           
Municipal securities$4,521
 $122,197
 $257
 $13,812
 $4,778
 $136,009
Available-for-sale           
U.S. Government agencies and corporations:           
Agency securities2,176
 559,196
 482
 131,615
 2,658
 690,811
Agency guaranteed mortgage-backed securities34,583
 3,639,824
 1,454
 65,071
 36,037
 3,704,895
Small Business Administration loan-backed securities5,348
 567,365
 9,097
 535,376
 14,445
 1,102,741
Municipal securities735
 102,901
 121
 5,733
 856
 108,634
Other
 
 2,665
 12,337
 2,665
 12,337
 42,842
 4,869,286
 13,819
 750,132
 56,661
 5,619,418
Mutual funds and other37
 35,488
 
 
 37
 35,488
 42,879
 4,904,774
 13,819
 750,132
 56,698
 5,654,906
Total$47,400
 $5,026,971
 $14,076
 $763,944
 $61,476
 $5,790,915
At September 30, 2016 and December 31, 2015, respectively, 215 and 187 HTM and 814 and 709 AFS investment securities were in an unrealized loss position.

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At June 30, 2016 and December 31, 2015, respectively, 135 and 187 HTM and 470 and 709 AFS investment securities were in an unrealized loss position.
Other-Than-Temporary Impairment
Ongoing Policy
We review investment securities on a quarterly basis for the presence of other-than-temporary impairment (“OTTI”). We assess whether OTTI is present when the fair value of a debt security is less than its amortized cost basis at the balance sheet date (the majority of the investment portfolio are debt securities). Under these circumstances, OTTI is considered to have occurred if (1) we have formed a documented intent to sell identified securities or initiated such sales; (2) it is “more likely than not” we will be required to sell the security before recovery of its amortized cost basis; or (3) the present value of expected cash flows is not sufficient to recover the entire amortized cost basis.
Noncredit-related OTTI in securities we intend to sell is recognized in earnings as is any credit-related OTTI in securities, regardless of our intent. Noncredit-related OTTI on AFS securities not expected to be sold is recognized in other comprehensive income (“OCI”). The amount of noncredit-related OTTI in a security is quantified as the difference in a security’s amortized cost after adjustment for credit impairment, and its lower fair value. Presentation of OTTI is made in the statement of income on a gross basis with an offset for the amount of OTTI recognized in OCI.
OTTI Conclusions
Our 2015 Annual Report on Form 10-K describes in more detail our OTTI evaluation process. The following summarizes the conclusions from our OTTI evaluation by each security type that has significant gross unrealized losses at JuneSeptember 30, 2016:
Small Business Administration (“SBA”) Loan-Backed Securities: These securities were generally purchased at premiums with maturities from 5 to 25 years and have principal cash flows guaranteed by the SBA. Unrealized losses relate to changes in interest rates subsequent to purchase and are not attributable to credit. At JuneSeptember 30, 2016, we did not have an intent to sell identified SBA securities with unrealized losses or initiate such sales, and we believe it is morenot likely than notthat we would not be required to sell such securities before recovery of their amortized cost basis. Therefore, we did not record OTTI for these securities during the secondthird quarter of 2016.
The following is a tabular rollforward of the total amount of credit-related OTTI:OTTI in 2015. We did not record any credit-related OTTI in the three and nine months ended 2016.
(In thousands)

Three Months Ended
June 30, 2016
Six Months Ended
June 30, 2016
HTM
AFS
Total
HTMAFSTotal
Balance of credit-related OTTI at beginning
of period
$
$
$
$
$
$
Reductions for securities sold or paid off during the period





Reclassification of securities from HTM to AFS





Balance of credit-related OTTI at end of period$
$
$
$
$
$
(In thousands)

Three Months Ended
June 30, 2015
 Six Months Ended
June 30, 2015
Three Months Ended
September 30,
 2015
 Nine Months Ended
September 30, 2015
HTM AFS Total HTM AFS TotalHTM AFS Total HTM AFS Total
                      
Balance of credit-related OTTI at beginning
of period
$
 $(103,238) $(103,238) $(9,079) $(95,472) $(104,551)$
 $
 $
 $(9,079) $(95,472) $(104,551)
Reductions for securities sold or paid off during the period
 103,238
 103,238
 
 104,551
 104,551

 
 
 
 104,551
 104,551
Reclassification of securities from HTM to AFS
 
 
 9,079
 (9,079) 

 
 
 9,079
 (9,079) 
Balance of credit-related OTTI at end of period$
 $
 $
 $
 $
 $
$
 $
 $
 $
 $
 $

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The following summarizes gains and losses, including OTTI, that were recognized in the statement of income:
  Three Months Ended Six Months Ended
  June 30, 2016 June 30, 2015 June 30, 2016 June 30, 2015
 (In thousands)Gross gains 
Gross
losses
 Gross gains Gross losses Gross gains 
Gross
losses
 Gross gains Gross losses
 
 Investment securities:               
 Held-to-maturity$
 $
 $
 $
 $
 $
 $1
 $
 Available-for-sale30
 5
 7,402
 146,315
 60
 7
 8,360
 147,513
                 
 Other noninterest-bearing investments2,711
 2
 6,008
 692
 5,898
 3,739
 9,603
 934
  2,741
 7
 13,410
 147,007
 5,958
 3,746
 17,964
 148,447
 Net gains (losses)  $2,734
   $(133,597)   $2,212
   $(130,483)
                 
 Statement of income information:               
 Equity securities gains, net  $2,709
   $4,839
   $2,159
   $8,192
 Fixed income securities gains (losses), net  25
   (138,436)   53
   (138,675)
 Net gains (losses)  $2,734
   $(133,597)   $2,212
   $(130,483)
  Three Months Ended Nine Months Ended
  September 30, 2016 September 30, 2015 September 30, 2016 September 30, 2015
 (In thousands)Gross gains 
Gross
losses
 Gross gains Gross losses Gross gains 
Gross
losses
 Gross gains 
Gross
 losses
 
 Investment securities:               
 Held-to-maturity$12
 $
 $
 $
 $12
 $
 $1
 $
 Available-for-sale29
 2
 6
 59
 89
 9
 8,366
 147,572
 Other noninterest-bearing investments8,803
 362
 14,267
 10,637
 14,701
 4,101
 23,870
 11,571
  8,844
 364
 14,273
 10,696
 14,802
 4,110
 32,237
 159,143
 Net gains (losses)  $8,480
   $3,577
   $10,692
   $(126,906)
 Statement of income information:               
 Equity securities gains, net  $8,441
   $3,630
   $10,600
   $11,822
 Fixed income securities gains (losses), net  39
   (53)   92
   (138,728)
 Net gains (losses)  $8,480
   $3,577
   $10,692
   $(126,906)
Interest income by security type is as follows:
(In thousands)Three Months Ended
June 30, 2016
 Six Months Ended
June 30, 2016
Three Months Ended
September 30,
 2016
 Nine Months Ended
September 30, 2016
Taxable Nontaxable Total Taxable Nontaxable TotalTaxable Nontaxable Total Taxable Nontaxable Total
Investment securities:                      
Held-to-maturity$2,572
 $3,158
 $5,730
 $5,176
 $5,884
 $11,060
$2,572
 $3,318
 $5,890
 $7,748
 $9,202
 $16,950
Available-for-sale38,577
 2,581
 41,158
 78,184
 4,536
 82,720
39,784
 2,987
 42,771
 117,968
 7,523
 125,491
Trading757
 
 757
 1,229
 
 1,229
676
 
 676
 1,905
 
 1,905
$41,906
 $5,739
 $47,645
 $84,589
 $10,420
 $95,009
$43,032
 $6,305
 $49,337
 $127,621
 $16,725
 $144,346
(In thousands)Three Months Ended
June 30, 2015
 Six Months Ended
June 30, 2015
Three Months Ended
September 30,
 2015
 Nine Months Ended
September 30, 2015
Taxable Nontaxable Total Taxable Nontaxable TotalTaxable Nontaxable Total Taxable Nontaxable Total
Investment securities:                      
Held-to-maturity$3,093
 $2,774
 $5,867
 $6,685
 $5,636
 $12,321
$3,031
 $2,629
 $5,660
 $9,716
 $8,265
 $17,981
Available-for-sale21,637
 695
 22,332
 41,405
 1,348
 42,753
23,427
 699
 24,126
 64,832
 2,047
 66,879
Trading610
 
 610
 1,208
 
 1,208
445
 
 445
 1,653
 
 1,653
$25,340
 $3,469
 $28,809
 $49,298
 $6,984
 $56,282
$26,903
 $3,328
 $30,231
 $76,201
 $10,312
 $86,513

Investment securities with a carrying value of $1.7$1.5 billion at JuneSeptember 30, 2016 and $2.3 billion at December 31, 2015 were pledged to secure public and trust deposits, advances, and for other purposes as required by law. Securities are also pledged as collateral for security repurchase agreements.
Private Equity Investments
Effect of Volcker Rule
The Volcker Rule, as published pursuant to the Dodd-Frank Act in December 2013 and amended in January 2014, significantly restricted certain activities by covered bank holding companies, including restrictions on certain types of securities, proprietary trading, and private equity investing. The Company’s private equity investments (“PEIs”) consist of Small Business Investment Companies (“SBICs”) and non-SBICs. Following the sales of its CDO securities, the only prohibited investments under the Volcker Rule requiring divestiture by the Company were certain of its PEIs. Of the recorded PEIs of $133$143 million at JuneSeptember 30, 2016, approximately $7 million remain prohibited by the Volcker Rule.

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As of JuneSeptember 30, 2016 we have sold a total of $18 million of PEIs during 2016 and 2015 as follows: $9 million during 2016 and $9 million during 2015. All of these sales were related to prohibited PEIs and resulted in

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insignificant amounts of realized gains or losses. We will dispose of the remaining $7 million of prohibited PEIs before the required deadline, which has been extended to July 21, 2017. See other discussions in Notes 10 and 11.
As discussed in Note 11, we have $20$18 million at JuneSeptember 30, 2016 of unfunded commitments for PEIs, of which approximately $2$1 million relate to prohibited PEIs. Until we dispose of the prohibited PEIs, we expect to fund these commitments if and as the capital calls are made, as allowed under the Volcker Rule.
6.LOANS AND ALLOWANCE FOR CREDIT LOSSES
Loans and Loans Held for Sale
Loans are summarized as follows according to major portfolio segment and specific loan class:
(In thousands)June 30,
2016
 December 31,
2015
September 30,
2016
 December 31,
2015
      
Loans held for sale$146,512
 $149,880
$160,287
 $149,880
      
Commercial:      
Commercial and industrial$13,757,123
 $13,211,481
$13,542,752
 $13,211,481
Leasing426,449
 441,666
438,933
 441,666
Owner occupied6,988,647
 7,150,028
6,889,674
 7,150,028
Municipal756,145
 675,839
752,960
 675,839
Total commercial21,928,364
 21,479,014
21,624,319
 21,479,014
Commercial real estate:      
Construction and land development2,088,250
 1,841,502
2,147,212
 1,841,502
Term9,229,683
 8,514,401
9,302,712
 8,514,401
Total commercial real estate11,317,933
 10,355,903
11,449,924
 10,355,903
Consumer:      
Home equity credit line2,507,176
 2,416,357
2,581,068
 2,416,357
1-4 family residential5,680,050
 5,382,099
5,784,583
 5,382,099
Construction and other consumer real estate419,299
 385,240
453,235
 385,240
Bankcard and other revolving plans459,707
 443,780
457,910
 443,780
Other189,046
 187,149
188,681
 187,149
Total consumer9,255,278
 8,814,625
9,465,477
 8,814,625
Total loans$42,501,575
 $40,649,542
$42,539,720
 $40,649,542
Loan balances are presented net of unearned income and fees, which amounted to $149.7149.1 million at JuneSeptember 30, 2016 and $150.3 million at December 31, 2015.
Owner occupied and commercial real estate (“CRE”) loans include unamortized premiums of approximately $23.021.4 million at JuneSeptember 30, 2016 and $26.2 million at December 31, 2015.
Municipal loans generally include loans to municipalities with the debt service being repaid from general funds or pledged revenues of the municipal entity, or to private commercial entities or 501(c)(3) not-for-profit entities utilizing a pass-through municipal entity to achieve favorable tax treatment.
Land development loans included in the construction and land development loan class were $280.5295.1 million at JuneSeptember 30, 2016 and $288.0 million at December 31, 2015.
Loans with a carrying value of approximately $26.0$25.9 billion at JuneSeptember 30, 2016 have been pledged at the Federal Reserve and the Federal Home Loan Bank (“FHLB”) of Des Moines as collateral for current and potential borrowings compared to $19.4 billion at December 31, 2015 at the Federal Reserve and various FHLBs.
We sold loans totaling $317.5$413.2 million and $590.7$1,003.9 million for the three and sixnine months endedendeJuned September 30, 2016, and $335.8$434.1 million and $636.2$1,070.2 million for the three and sixnine months ended Juneended September 30, 2015, respectively, that were

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classified as loans held for sale. The sold loans were derecognized from the balance sheet. Loans classified as loans held for sale primarily consist of conforming residential mortgages and the guaranteed portion of SBA loans. Amounts added to loans held for sale during these periods were $356.9$386.7 million and $592.6 979.3

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million for the three and sixnine months endedendeJuned September 30, 2016, and $359.0$442.4 million and $668.71,111.0 million for the three and sixnine months ended Juneended September 30, 2015, respectively.
The principal balance of sold loans for which we retain servicing was approximately $1.2 billion at JuneSeptember 30, 2016 and $1.3 billion at December 31, 2015. Income from loans sold, excluding servicing, was $5.9$6.2 million and $8.9$15.1 million for the three and sixnine months endedendeJuned September 30, 2016, and $4.3$5.0 million and $8.9$13.9 million for the three and sixnine months ended Juneended September 30, 2015, respectively.
Allowance for Credit Losses
The allowance for credit losses (“ACL”) consists of the allowance for loan and lease losses (“ALLL”) (also referred to as the allowance for loan losses) and the reserve for unfunded lending commitments (“RULC”).
Allowance for Loan and Lease Losses
The ALLL represents our estimate of probable and estimable losses inherent in the loan and lease portfolio as of the balance sheet date. Losses are charged to the ALLL when recognized. Generally, commercial and CRE loans are charged off or charged down when they are determined to be uncollectible in whole or in part, or when 180 days past due unless the loan is well secured and in process of collection. Consumer loans are either charged off or charged down to net realizable value no later than the month in which they become 180 days past due. Closed-end consumer loans that are not secured by residential real estate are either charged off or charged down to net realizable value no later than the month in which they become 120 days past due. We establish the amount of the ALLL by analyzing the portfolio at least quarterly, and we adjust the provision for loan losses so the ALLL is at an appropriate level at the balance sheet date.
We determine our ALLL as the best estimate within a range of estimated losses. The methodologies we use to estimate the ALLL depend upon the impairment status and loan portfolio. The methodology for impaired loans is discussed subsequently. For commercial and CRE loans with commitments equal to or greater than $750,000, we assign internal risk grades using a comprehensive loan grading system based on financial and statistical models, individual credit analysis, and loan officer experience and judgment. The credit quality indicators discussed subsequently are based on this grading system. Estimated losses for these commercial and CRE loans are derived from a statistical analysis of our historical default and loss given default (“LGD”) experience over the period of January 2008 through the most recent full quarter.
For consumer and small commercial and CRE loans with commitments less than $750,000, we primarily use roll rate models to forecast probable inherent losses. Roll rate models measure the rate at which these loans migrate from one delinquency category to the next worse delinquency category, and eventually to loss. We estimate roll rates for these loans using recent delinquency and loss experience by segmenting our loan portfolios into separate pools based on common risk characteristics and separately calculating historical delinquency and loss experience for each pool. These roll rates are then applied to current delinquency levels to estimate probable inherent losses.
The current status and historical changes in qualitative and environmental factors may not be reflected in our quantitative models. Thus, after applying historical loss experience, as described above, we review the quantitatively derived level of ALLL for each segment using qualitative criteria and use those criteria to determine our estimate within the range. We track various risk factors that influence our judgment regarding the level of the ALLL across the portfolio segments. These factors primarily include:
Changes in lending policies and procedures, including changes in underwriting standards and collection, charge-off, and recovery practices
Changes in international, national, regional, and local economic and business conditions
Changes in the nature and volume of the portfolio and in the terms of loans
Changes in the experience, ability, and depth of lending management and other relevant staff

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Changes in the volume and severity of past due loans, the volume of nonaccrual loans, and the volume and severity of adversely classified or graded loans

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Changes in the quality of the loan review system
Changes in the value of underlying collateral for collateral-dependent loans

The existence and effect of any concentration of credit, and changes in the level of such concentrations
The effect of other external factors such as competition and legal and regulatory requirements
The magnitude of the impact of these factors on our qualitative assessment of the ALLL changes from quarter to quarter according to changes made by management in its assessment of these factors, the extent these factors are already reflected in historic loss rates, and the extent changes in these factors diverge from one to another. We also consider the uncertainty inherent in the estimation process when evaluating the ALLL.
Reserve for Unfunded Lending Commitments
We also estimate a reserve for potential losses associated with off-balance sheet commitments, including standby letters of credit. We determine the RULC using the same procedures and methodologies that we use for the ALLL. The loss factors used in the RULC are the same as the loss factors used in the ALLL, and the qualitative adjustments used in the RULC are the same as the qualitative adjustments used in the ALLL. We adjust the Company’s unfunded lending commitments that are not unconditionally cancelable to an outstanding amount equivalent using credit conversion factors, and we apply the loss factors to the outstanding equivalents.
Changes in ACL Assumptions
During the first quarter of 2016, due to the consolidation of our separate banking charters, we enhanced our methodology to estimate the ACL on a Company-wide basis. As described previously, for large commercial and CRE loans, we began estimating historic loss factors by separately calculating historic default and LGD rates, instead of directly calculating loss rates for groupings of probability of default and LGD grades using a loss migration approach. For small commercial and CRE loans, we began using roll rate models to forecastestimate probable inherent losses. For consumer loans, we began pooling loans by current loan-to-value, where applicable. The impact of these changes was largely neutral to the total ACL at implementation.


Changes in the allowance for credit losses are summarized as follows:

 Three Months Ended September 30, 2016
(In thousands)Commercial 
Commercial
real estate
 Consumer Total
Allowance for loan losses       
Balance at beginning of period$457,064
 $121,567
 $29,714
 $608,345
Additions:       
Provision for loan losses22,298
 (6,446) 2,973
 18,825
Deductions:       
Gross loan and lease charge-offs(48,032) (1,075) (4,656) (53,763)
Recoveries14,724
 6,952
 2,102
 23,778
Net loan and lease (charge-offs) recoveries(33,308) 5,877
 (2,554) (29,985)
Balance at end of period$446,054
 $120,998
 $30,133
 $597,185
        
Reserve for unfunded lending commitments       
Balance at beginning of period$53,523
 $11,257
 $
 $64,780
Provision credited to earnings(1,903) (1,262) 
 (3,165)
Balance at end of period$51,620
 $9,995
 $
 $61,615
        
Total allowance for credit losses at end of period       
Allowance for loan losses$446,054
 $120,998
 $30,133
 $597,185
Reserve for unfunded lending commitments51,620
 9,995
 
 61,615
Total allowance for credit losses$497,674
 $130,993
 $30,133
 $658,800

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Changes in the allowance for credit losses are summarized as follows:

 Three Months Ended June 30, 2016
(In thousands)Commercial 
Commercial
real estate
 Consumer Total
Allowance for loan losses       
Balance at beginning of period$463,987
 $117,712
 $30,195
 $611,894
Additions:       
Provision for loan losses25,186
 9,621
 (315) 34,492
Deductions:       
Gross loan and lease charge-offs(46,635) (7,839) (3,155) (57,629)
Recoveries14,526
 2,073
 2,989
 19,588
Net loan and lease charge-offs(32,109) (5,766) (166) (38,041)
Balance at end of period$457,064
 $121,567
 $29,714
 $608,345
        
Reserve for unfunded lending commitments       
Balance at beginning of period$56,267
 $12,759
 $
 $69,026
Provision credited to earnings(2,744) (1,502) 
 (4,246)
Balance at end of period$53,523
 $11,257
 $
 $64,780
        
Total allowance for credit losses at end of period       
Allowance for loan losses$457,064
 $121,567
 $29,714
 $608,345
Reserve for unfunded lending commitments53,523
 11,257
 
 64,780
Total allowance for credit losses$510,587
 $132,824
 $29,714
 $673,125
 Six Months Ended June 30, 2016
(In thousands)Commercial 
Commercial
real estate
 Consumer Total
Allowance for loan losses       
Balance at beginning of period$454,277
 $113,992
 $37,779
 $606,048
Additions:       
Provision for loan losses71,061
 11,322
 (5,746) 76,637
Deductions:       
Gross loan and lease charge-offs(89,865) (8,814) (7,060) (105,739)
Recoveries21,591
 5,067
 4,741
 31,399
Net loan and lease charge-offs(68,274) (3,747) (2,319) (74,340)
Balance at end of period$457,064
 $121,567
 $29,714
 $608,345
        
Reserve for unfunded lending commitments       
Balance at beginning of period$57,696
 $16,526
 $616
 $74,838
Provision credited to earnings(4,173) (5,269) (616) (10,058)
Balance at end of period$53,523
 $11,257
 $
 $64,780
        
Total allowance for credit losses at end of period       
Allowance for loan losses$457,064
 $121,567
 $29,714
 $608,345
Reserve for unfunded lending commitments53,523
 11,257
 
 64,780
Total allowance for credit losses$510,587
 $132,824
 $29,714
 $673,125

 Nine Months Ended September 30, 2016
(In thousands)Commercial 
Commercial
real estate
 Consumer Total
Allowance for loan losses       
Balance at beginning of period$454,277
 $113,992
 $37,779
 $606,048
Additions:       
Provision for loan losses93,359
 4,876
 (2,773) 95,462
Deductions:       
Gross loan and lease charge-offs(137,897) (9,889) (11,716) (159,502)
Recoveries36,315
 12,019
 6,843
 55,177
Net loan and lease (charge-offs) recoveries(101,582) 2,130
 (4,873) (104,325)
Balance at end of period$446,054
 $120,998
 $30,133
 $597,185
        
Reserve for unfunded lending commitments       
Balance at beginning of period$57,696
 $16,526
 $616
 $74,838
Provision credited to earnings(6,076) (6,531) (616) (13,223)
Balance at end of period$51,620
 $9,995
 $
 $61,615
        
Total allowance for credit losses at end of period       
Allowance for loan losses$446,054
 $120,998
 $30,133
 $597,185
Reserve for unfunded lending commitments51,620
 9,995
 
 61,615
Total allowance for credit losses$497,674
 $130,993
 $30,133
 $658,800
 Three Months Ended September 30, 2015
(In thousands)Commercial
Commercial
real estate

Consumer
Total
Allowance for loan losses       
Balance at beginning of period$437,770
 $125,796
 $45,809
 $609,375
Additions:       
Provision for loan losses22,417
 (6,621) 2,466
 18,262
Deductions:      
Gross loan and lease charge-offs(36,961) (1,068) (4,330) (42,359)
Recoveries4,471
 4,162
 2,529
 11,162
Net loan and lease (charge-offs) recoveries(32,490) 3,094
 (1,801) (31,197)
Balance at end of period$427,697
 $122,269
 $46,474
 $596,440

       
Reserve for unfunded lending commitments       
Balance at beginning of period$60,774
 $18,639
 $548
 $79,961
Provision charged (credited) to earnings2,808
 (1,467) 87
 1,428
Balance at end of period$63,582
 $17,172
 $635
 $81,389

       
Total allowance for credit losses at end of period       
Allowance for loan losses$427,697

$122,269

$46,474

$596,440
Reserve for unfunded lending commitments63,582
 17,172
 635
 81,389
Total allowance for credit losses$491,279
 $139,441
 $47,109
 $677,829

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 Three Months Ended June 30, 2015
(In thousands)Commercial
Commercial
real estate

Consumer
Total
Allowance for loan losses       
Balance at beginning of period$442,072
 $131,615
 $46,326
 $620,013
Additions:       
Provision for loan losses5,941
 (4,983) (392) 566
Adjustment for FDIC-supported/PCI loans(19) 57
 
 38
Deductions:      
Gross loan and lease charge-offs(23,822) (3,943) (3,283) (31,048)
Recoveries13,598
 3,050
 3,158
 19,806
Net loan and lease charge-offs(10,224) (893) (125) (11,242)
Balance at end of period$437,770
 $125,796
 $45,809
 $609,375

       
Reserve for unfunded lending commitments       
Balance at beginning of period$62,775
 $18,937
 $575
 $82,287
Provision credited to earnings(2,001) (298) (27) (2,326)
Balance at end of period$60,774
 $18,639
 $548
 $79,961

       
Total allowance for credit losses at end of period       
Allowance for loan losses$437,770

$125,796

$45,809

$609,375
Reserve for unfunded lending commitments60,774
 18,639
 548
 79,961
Total allowance for credit losses$498,544
 $144,435
 $46,357
 $689,336
 Six Months Ended June 30, 2015
(In thousands)Commercial 
Commercial
real estate
 Consumer Total
Allowance for loan losses       
Balance at beginning of period$412,514
 $145,009
 $47,140
 $604,663
Additions:       
Provision for loan losses30,875
 (31,870) 67
 (928)
Adjustment for FDIC-supported/PCI loans(57) 57
 
 
Deductions:       
Gross loan and lease charge-offs(39,773) (4,569) (6,894) (51,236)
Recoveries34,211
 17,169
 5,496
 56,876
Net loan and lease charge-offs(5,562) 12,600
 (1,398) 5,640
Balance at end of period$437,770
 $125,796
 $45,809
 $609,375
        
Reserve for unfunded lending commitments       
Balance at beginning of period$58,931
 $21,517
 $628
 $81,076
Provision charged (credited) to earnings1,843
 (2,878) (80) (1,115)
Balance at end of period$60,774
 $18,639
 $548
 $79,961
        
Total allowance for credit losses at end of period       
Allowance for loan losses$437,770

$125,796

$45,809

$609,375
Reserve for unfunded lending commitments60,774
 18,639
 548
 79,961
Total allowance for credit losses$498,544
 $144,435
 $46,357
 $689,336

 Nine Months Ended September 30, 2015
(In thousands)Commercial 
Commercial
real estate
 Consumer Total
Allowance for loan losses       
Balance at beginning of period$412,514
 $145,009
 $47,140
 $604,663
Additions:       
Provision for loan losses53,292
 (38,491) 2,533
 17,334
Deductions:       
Gross loan and lease charge-offs(76,734) (5,637) (11,224) (93,595)
Recoveries38,682
 21,331
 8,025
 68,038
Net loan and lease (charge-offs) recoveries(38,052) 15,694
 (3,199) (25,557)
Balance at end of period$427,697
 $122,269
 $46,474
 $596,440
        
Reserve for unfunded lending commitments       
Balance at beginning of period$58,931
 $21,517
 $628
 $81,076
Provision charged (credited) to earnings4,651
 (4,345) 7
 313
Balance at end of period$63,582
 $17,172
 $635
 $81,389
        
Total allowance for credit losses at end of period       
Allowance for loan losses$427,697

$122,269

$46,474

$596,440
Reserve for unfunded lending commitments63,582
 17,172
 635
 81,389
Total allowance for credit losses$491,279
 $139,441
 $47,109
 $677,829
The ALLL and outstanding loan balances according to the Company’s impairment method are summarized as follows:
 September 30, 2016
(In thousands)Commercial 
Commercial
real estate
 Consumer Total
Allowance for loan losses:       
Individually evaluated for impairment$68,159
 $3,029
 $6,755
 $77,943
Collectively evaluated for impairment377,197
 117,520
 22,900
 517,617
Purchased loans with evidence of credit deterioration698
 449
 478
 1,625
        
Outstanding loan balances:       
Individually evaluated for impairment$495,919
 $74,456
 $76,564
 $646,939
Collectively evaluated for impairment21,086,101
 11,336,574
 9,380,885
 41,803,560
Purchased loans with evidence of credit deterioration42,299
 38,894
 8,028
 89,221
Total$21,624,319
 $11,449,924
 $9,465,477
 $42,539,720
 December 31, 2015
(In thousands)Commercial 
Commercial
real estate
 Consumer Total
Allowance for loan losses:       
Individually evaluated for impairment$36,909
 $3,154
 $9,462
 $49,525
Collectively evaluated for impairment417,295
 110,417
 27,866
 555,578
Purchased loans with evidence of credit deterioration73
 421
 451
 945
        
Outstanding loan balances:       
Individually evaluated for impairment$289,629
 $107,341
 $92,605
 $489,575
Collectively evaluated for impairment21,129,125
 10,193,840
 8,712,079
 40,035,044
Purchased loans with evidence of credit deterioration60,260
 54,722
 9,941
 124,923
Total$21,479,014
 $10,355,903
 $8,814,625
 $40,649,542

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The ALLL and outstanding loan balances according to the Company’s impairment method are summarized as follows:
 June 30, 2016
(In thousands)Commercial 
Commercial
real estate
 Consumer Total
Allowance for loan losses:       
Individually evaluated for impairment$53,644
 $3,648
 $6,796
 $64,088
Collectively evaluated for impairment402,559
 117,288
 22,890
 542,737
Purchased loans with evidence of credit deterioration861
 631
 28
 1,520
Total$457,064
 $121,567
 $29,714
 $608,345
        
Outstanding loan balances:       
Individually evaluated for impairment$452,250
 $102,806
 $78,307
 $633,363
Collectively evaluated for impairment21,432,102
 11,170,511
 9,168,216
 41,770,829
Purchased loans with evidence of credit deterioration44,012
 44,616
 8,755
 97,383
Total$21,928,364
 $11,317,933
 $9,255,278
 $42,501,575
 December 31, 2015
(In thousands)Commercial 
Commercial
real estate
 Consumer Total
Allowance for loan losses:       
Individually evaluated for impairment$36,909
 $3,154
 $9,462
 $49,525
Collectively evaluated for impairment417,295
 110,417
 27,866
 555,578
Purchased loans with evidence of credit deterioration73
 421
 451
 945
Total$454,277
 $113,992
 $37,779
 $606,048
        
Outstanding loan balances:       
Individually evaluated for impairment$289,629
 $107,341
 $92,605
 $489,575
Collectively evaluated for impairment21,129,125
 10,193,840
 8,712,079
 40,035,044
Purchased loans with evidence of credit deterioration60,260
 54,722
 9,941
 124,923
Total$21,479,014
 $10,355,903
 $8,814,625
 $40,649,542
Nonaccrual and Past Due Loans
Loans are generally placed on nonaccrual status when payment in full of principal and interest is not expected, or the loan is 90 days or more past due as to principal or interest, unless the loan is both well secured and in the process of collection. Factors we consider in determining whether a loan is placed on nonaccrual include delinquency status, collateral value, borrower or guarantor financial statement information, bankruptcy status, and other information which would indicate that the full and timely collection of interest and principal is uncertain.
A nonaccrual loan may be returned to accrual status when all delinquent interest and principal become current in accordance with the terms of the loan agreement; the loan, if secured, is well secured; the borrower has paid according to the contractual terms for a minimum of six months; and analysis of the borrower indicates a reasonable assurance of the ability and willingness to maintain payments. Payments received on nonaccrual loans are applied as a reduction to the principal outstanding.
Closed-end loans with payments scheduled monthly are reported as past due when the borrower is in arrears for two or more monthly payments. Similarly, open-end credit such as charge-card plans and other revolving credit plans are reported as past due when the minimum payment has not been made for two or more billing cycles. Other multi-payment obligations (i.e., quarterly, semiannual, etc.), single payment, and demand notes are reported as past due when either principal or interest is due and unpaid for a period of 30 days or more.

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Nonaccrual loans are summarized as follows:
(In thousands)June 30,
2016
 December 31,
2015
Loans held for sale$13,570
 $
Commercial:   
Commercial and industrial$340,883
 $163,906
Leasing13,914
 3,829
Owner occupied69,646
 73,881
Municipal893
 951
Total commercial425,336
 242,567
Commercial real estate:   
Construction and land development4,610
 7,045
Term51,209
 40,253
Total commercial real estate55,819
 47,298
Consumer:   
Home equity credit line11,698
 8,270
1-4 family residential38,600
 50,254
Construction and other consumer real estate627
 748
Bankcard and other revolving plans1,667
 537
Other85
 186
Total consumer loans52,677
 59,995
Total$533,832
 $349,860
Past due loans (accruing and nonaccruing) are summarized as follows:
Nonaccrual loans are summarized as follows:Nonaccrual loans are summarized as follows:
June 30, 2016
(In thousands)Current 
30-89 days
past due
 
90+ days
past due
 
Total
past due
 
Total
loans
 
Accruing
loans
90+ days
past due
 
Nonaccrual
loans
that are
current 1
September 30,
2016
 December 31,
2015
Loans held for sale$132,942
 $
 $13,570
 $13,570
 $146,512
 $
 $
$29,448
 $
Commercial:                
Commercial and industrial$13,622,079
 $73,002
 $62,042
 $135,044
 $13,757,123
 $10,210
 $275,451
$387,339
 $163,906
Leasing424,112
 
 2,337
 2,337
 426,449
 1,826
 13,403
14,219
 3,829
Owner occupied6,937,243
 23,486
 27,918
 51,404
 6,988,647
 4,241
 39,773
65,873
 73,881
Municipal756,145
 
 
 
 756,145
 
 893
868
 951
Total commercial21,739,579
 96,488
 92,297
 188,785
 21,928,364
 16,277
 329,520
468,299
 242,567
Commercial real estate:                
Construction and land development2,062,760
 23,699
 1,791
 25,490
 2,088,250
 
 2,558
4,037
 7,045
Term9,193,382
 13,119
 23,182
 36,301
 9,229,683
 11,254
 36,774
27,420
 40,253
Total commercial real estate11,256,142
 36,818
 24,973
 61,791
 11,317,933
 11,254
 39,332
31,457
 47,298
Consumer:                
Home equity credit line2,495,556
 6,230
 5,390
 11,620
 2,507,176
 
 4,687
11,318
 8,270
1-4 family residential5,649,946
 10,936
 19,168
 30,104
 5,680,050
 288
 15,742
36,016
 50,254
Construction and other consumer real estate411,212
 7,504
 583
 8,087
 419,299
 314
 308
753
 748
Bankcard and other revolving plans456,443
 2,217
 1,047
 3,264
 459,707
 861
 1,332
1,415
 537
Other188,322
 715
 9
 724
 189,046
 
 52
126
 186
Total consumer loans9,201,479
 27,602
 26,197
 53,799
 9,255,278
 1,463
 22,121
49,628
 59,995
Total$42,197,200
 $160,908
 $143,467
 $304,375
 $42,501,575
 $28,994
 $390,973
$549,384
 $349,860

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Past due loans (accruing and nonaccruing) are summarized as follows:Past due loans (accruing and nonaccruing) are summarized as follows:
December 31, 2015September 30, 2016
(In thousands)Current 
30-89 days
past due
 
90+ days
past due
 
Total
past due
 
Total
loans
 
Accruing
loans
90+ days
past due
 
Nonaccrual
loans
that are
current 1
Current 
30-89 days
past due
 
90+ days
past due
 
Total
past due
 
Total
loans
 
Accruing
loans
90+ days
past due
 
Nonaccrual
loans
that are
current 1
Loans held for sale$160,287
 $
 $
 $
 $160,287
 $
 $29,448
Commercial:                          
Commercial and industrial$13,114,045
 $60,523
 $36,913
 $97,436
 $13,211,481
 $3,065
 $117,942
$13,404,163
 $87,689
 $50,900
 $138,589
 $13,542,752
 $5,452
 $320,959
Leasing440,963
 183
 520
 703
 441,666
 
 3,309
438,933
 
 
 
 438,933
 
 14,219
Owner occupied7,085,086
 37,776
 27,166
 64,942
 7,150,028
 3,626
 43,984
6,839,251
 30,313
 20,110
 50,423
 6,889,674
 5,472
 42,803
Municipal668,207
 7,586
 46
 7,632
 675,839
 46
 951
752,960
 
 
 
 752,960
 
 868
Total commercial21,308,301
 106,068
 64,645
 170,713
 21,479,014
 6,737
 166,186
21,435,307
 118,002
 71,010
 189,012
 21,624,319
 10,924
 378,849
Commercial real estate:                          
Construction and land development1,835,360
 842
 5,300
 6,142
 1,841,502
 
 1,745
2,113,363
 32,079
 1,770
 33,849
 2,147,212
 
 2,267
Term8,469,390
 10,424
 34,587
 45,011
 8,514,401
 21,697
 24,867
9,254,133
 25,362
 23,217
 48,579
 9,302,712
 15,231
 17,226
Total commercial real estate10,304,750
 11,266
 39,887
 51,153
 10,355,903
 21,697
 26,612
11,367,496
 57,441
 24,987
 82,428
 11,449,924
 15,231
 19,493
Consumer:                          
Home equity credit line2,407,972
 4,717
 3,668
 8,385
 2,416,357
 
 3,053
2,569,726
 4,380
 6,962
 11,342
 2,581,068
 1,500
 4,219
1-4 family residential5,340,549
 14,828
 26,722
 41,550
 5,382,099
 1,036
 20,939
5,751,412
 13,393
 19,778
 33,171
 5,784,583
 63
 11,248
Construction and other consumer real estate374,987
 8,593
 1,660
 10,253
 385,240
 1,337
 408
446,778
 5,896
 561
 6,457
 453,235
 107
 288
Bankcard and other revolving plans440,358
 1,861
 1,561
 3,422
 443,780
 1,217
 146
453,961
 2,794
 1,155
 3,949
 457,910
 1,010
 1,174
Other186,436
 647
 66
 713
 187,149
 
 83
188,147
 533
 1
 534
 188,681
 
 82
Total consumer loans8,750,302
 30,646
 33,677
 64,323
 8,814,625
 3,590
 24,629
9,410,024
 26,996
 28,457
 55,453
 9,465,477
 2,680
 17,011
Total$40,363,353
 $147,980
 $138,209
 $286,189
 $40,649,542
 $32,024
 $217,427
$42,212,827
 $202,439
 $124,454
 $326,893
 $42,539,720
 $28,835
 $415,353
 December 31, 2015
(In thousands)Current 
30-89 days
past due
 
90+ days
past due
 
Total
past due
 
Total
loans
 
Accruing
loans
90+ days
past due
 
Nonaccrual
loans
that are
current 1
Loans held for sale$149,880
 $
 $
 $
 $149,880
 $
 $
Commercial:             
Commercial and industrial$13,114,045
 $60,523
 $36,913
 $97,436
 $13,211,481
 $3,065
 $117,942
Leasing440,963
 183
 520
 703
 441,666
 
 3,309
Owner occupied7,085,086
 37,776
 27,166
 64,942
 7,150,028
 3,626
 43,984
Municipal668,207
 7,586
 46
 7,632
 675,839
 46
 951
Total commercial21,308,301
 106,068
 64,645
 170,713
 21,479,014
 6,737
 166,186
Commercial real estate:             
Construction and land development1,835,360
 842
 5,300
 6,142
 1,841,502
 
 1,745
Term8,469,390
 10,424
 34,587
 45,011
 8,514,401
 21,697
 24,867
Total commercial real estate10,304,750
 11,266
 39,887
 51,153
 10,355,903
 21,697
 26,612
Consumer:             
Home equity credit line2,407,972
 4,717
 3,668
 8,385
 2,416,357
 
 3,053
1-4 family residential5,340,549
 14,828
 26,722
 41,550
 5,382,099
 1,036
 20,939
Construction and other consumer real estate374,987
 8,593
 1,660
 10,253
 385,240
 1,337
 408
Bankcard and other revolving plans440,358
 1,861
 1,561
 3,422
 443,780
 1,217
 146
Other186,436
 647
 66
 713
 187,149
 
 83
Total consumer loans8,750,302
 30,646
 33,677
 64,323
 8,814,625
 3,590
 24,629
Total$40,363,353
 $147,980
 $138,209
 $286,189
 $40,649,542
 $32,024
 $217,427
1 
Represents nonaccrual loans that are not past due more than 30 days; however, full payment of principal and interest is still not expected.

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Credit Quality Indicators
In addition to the past due and nonaccrual criteria, we also analyze loans using loan risk grading systems, which vary based on the size and type of credit risk exposure. The internal risk grades assigned to loans follow our definitions of Pass, Special Mention, Substandard, and Doubtful, which are consistent with published definitions of regulatory risk classifications.
Definitions of Pass, Special Mention, Substandard, and Doubtful are summarized as follows:
Pass – A Pass asset is higher quality and does not fit any of the other categories described below. The likelihood of loss is considered low.
Special Mention A Special Mention asset has potential weaknesses that deserve management’s close attention. If left uncorrected, these potential weaknesses may result in deterioration of the repayment prospects for the asset or in the bank’s credit position at some future date.
Substandard – A Substandard asset is inadequately protected by the current sound worth and paying capacity of the obligor or of the collateral pledged, if any. Assets so classified have well-defined weaknesses and are characterized by the distinct possibility that the bank may sustain some loss if deficiencies are not corrected.
Doubtful – A Doubtful asset has all the weaknesses inherent in a Substandard asset with the added characteristics that the weaknesses make collection or liquidation in full highly questionable and improbable.
We generally assign internal risk grades to commercial and CRE loans with commitments equal to or greater than $750,000 based on financial and statistical models, individual credit analysis, and loan officer experience and judgment. For these larger loans, we assign one of multiple grades within the Pass classification or one of the following four grades: Special Mention, Substandard, Doubtful, and Loss. Loss indicates that the outstanding

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balance has been charged off. We confirm our internal risk grades quarterly, or as soon as we identify information that affects the credit risk of the loan.
For consumer loans and certain small commercial and CRE loans with commitments less than $750,000, we generally assign internal risk grades similar to those described previously based on automated rules that depend on refreshed credit scores, payment performance, and other risk indicators. These are generally assigned either a Pass or Substandard grade and are reviewed as we identify information that might warrant a grade change.

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Outstanding loan balances (accruing and nonaccruing) categorized by these credit quality indicators are summarized as follows:
June 30, 2016September 30, 2016
(In thousands)Pass 
Special
Mention
 
Sub-
standard
 Doubtful 
Total
loans
 
Total
allowance
Pass 
Special
Mention
 
Sub-
standard
 Doubtful 
Total
loans
 
Total
allowance
Commercial:                      
Commercial and industrial$12,393,067
 $316,850
 $1,047,206
 $
 $13,757,123
  $12,131,677
 $355,800
 $1,046,068
 $9,207
 $13,542,752
  
Leasing394,633
 1,601
 30,215
 
 426,449
  403,597
 6,155
 29,181
 
 438,933
  
Owner occupied6,549,125
 149,434
 290,088
 
 6,988,647
  6,450,754
 145,338
 293,582
 
 6,889,674
  
Municipal741,826
 
 14,319
 
 756,145
  738,808
 
 14,152
 
 752,960
  
Total commercial20,078,651
 467,885
 1,381,828
 
 21,928,364
 $457,064
19,724,836
 507,293
 1,382,983
 9,207
 21,624,319
 $446,054
Commercial real estate:                      
Construction and land development2,015,546
 64,383
 8,321
 
 2,088,250
  2,059,627
 61,936
 25,649
 
 2,147,212
  
Term9,020,963
 51,872
 156,848
 
 9,229,683
  9,065,467
 96,384
 140,861
 
 9,302,712
  
Total commercial real estate11,036,509
 116,255
 165,169
 
 11,317,933
 121,567
11,125,094
 158,320
 166,510
 
 11,449,924
 120,998
Consumer:                      
Home equity credit line2,493,134
 
 14,042
 
 2,507,176
  2,566,873
 
 14,195
 
 2,581,068
  
1-4 family residential5,636,600
 
 43,450
 
 5,680,050
  5,746,829
 
 37,754
 
 5,784,583
  
Construction and other consumer real estate417,723
 
 1,576
 
 419,299
  451,809
 
 1,426
 
 453,235
  
Bankcard and other revolving plans455,721
 
 3,986
 
 459,707
  454,850
 
 3,060
 
 457,910
  
Other188,834
 
 212
 
 189,046
  188,468
 
 213
 
 188,681
  
Total consumer loans9,192,012
 
 63,266
 
 9,255,278
 29,714
9,408,829
 
 56,648
 
 9,465,477
 30,133
Total$40,307,172
 $584,140
 $1,610,263
 $
 $42,501,575
 $608,345
$40,258,759
 $665,613
 $1,606,141
 $9,207
 $42,539,720
 $597,185
 December 31, 2015
(In thousands)Pass 
Special
Mention
 
Sub-
standard
 Doubtful 
Total
loans
 
Total
allowance
Commercial:           
Commercial and industrial$12,007,076
 $399,847
 $804,403
 $155
 $13,211,481
  
Leasing411,131
 5,166
 25,369
 
 441,666
  
Owner occupied6,720,052
 139,784
 290,192
 
 7,150,028
  
Municipal663,903
 
 11,936
 
 675,839
  
Total commercial19,802,162
 544,797
 1,131,900
 155
 21,479,014
 $454,277
Commercial real estate:           
Construction and land development1,786,610
 42,348
 12,544
 
 1,841,502
  
Term8,319,348
 47,245
 139,036
 8,772
 8,514,401
  
Total commercial real estate10,105,958
 89,593
 151,580
 8,772
 10,355,903
 113,992
Consumer:           
Home equity credit line2,404,635
 
 11,722
 
 2,416,357
  
1-4 family residential5,325,519
 
 56,580
 
 5,382,099
  
Construction and other consumer real estate381,738
 
 3,502
 
 385,240
  
Bankcard and other revolving plans440,282
 
 3,498
 
 443,780
  
Other186,836
 
 313
 
 187,149
  
Total consumer loans8,739,010
 
 75,615
 
 8,814,625
 37,779
Total$38,647,130
 $634,390
 $1,359,095
 $8,927
 $40,649,542
 $606,048

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ZIONS BANCORPORATION AND SUBSIDIARIES

Impaired Loans
Loans are considered impaired when, based on current information and events, it is probable that we will be unable to collect all amounts due in accordance with the contractual terms of the loan agreement, including scheduled interest payments. For our non-purchased credit-impaired loans, if a nonaccrual loan has a balance greater than $1 million, or if a loan is a troubled debt restructuring (“TDR”), including TDRs that subsequently default, or if the loan is no longer reported as a TDR, we individually evaluate the loan for impairment and estimate a specific

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ZIONS BANCORPORATION AND SUBSIDIARIES

reserve for the loan for all portfolio segments under applicable accounting guidance. Smaller nonaccrual loans are pooled for ALLL estimation purposes. Purchase credit-impaired (“PCI”) loans are included in impaired loans and are accounted for under separate accounting guidance. See subsequent discussion under Purchased Loans.
When a loan is impaired, we estimate a specific reserve for the loan based on the projected present value of the loan’s future cash flows discounted at the loan’s effective interest rate, the observable market price of the loan, or the fair value of the loan’s underlying collateral. The process of estimating future cash flows also incorporates the same determining factors discussed previously under nonaccrual loans. When we base the impairment amount on the fair value of the loan’s underlying collateral, we generally charge off the portion of the balance that is impaired, such that these loans do not have a specific reserve in the ALLL. Payments received on impaired loans that are accruing are recognized in interest income, according to the contractual loan agreement. Payments received on impaired loans that are on nonaccrual are not recognized in interest income, but are applied as a reduction to the principal outstanding. The amount of interest income recognized on a cash basis during the time the loans were impaired within the three and sixnine months endedendeJuned September 30, 2016 and 2015 was not significant.
Information on impaired loans individually evaluated is summarized as follows, including the average recorded investment and interest income recognized for the three and sixnine months ended Juneended September 30, 2016 and 2015:
June 30, 2016September 30, 2016
(In thousands)

Unpaid
principal
balance
 Recorded investment 
Total
recorded
investment
 
Related
allowance
Unpaid
principal
balance
 Recorded investment 
Total
recorded
investment
 
Related
allowance
with no
allowance
 
with
allowance
 
with no
allowance
 
with
allowance
 
         
Loans held for sale$18,935
 $15,996
 $
 $15,996
 $
         
Commercial:                  
Commercial and industrial$422,844
 $81,883
 $293,498
 $375,381
 $49,385
$476,275
 $86,904
 $338,754
 $425,658
 $64,381
Owner occupied117,779
 66,143
 41,654
 107,797
 4,166
108,694
 61,794
 38,163
 99,957
 3,612
Municipal1,372
 893
 
 893
 
1,347
 869
 
 869
 
Total commercial541,995
 148,919
 335,152
 484,071
 53,551
586,316
 149,567
 376,917
 526,484
 67,993
Commercial real estate:                  
Construction and land development18,714
 3,152
 8,155
 11,307
 746
18,432
 3,538
 7,323
 10,861
 256
Term125,446
 84,530
 22,277
 106,807
 1,545
86,540
 52,295
 22,290
 74,585
 1,322
Total commercial real estate144,160
 87,682
 30,432
 118,114
 2,291
104,972
 55,833
 29,613
 85,446
 1,578
Consumer:                  
Home equity credit line27,658
 20,796
 4,175
 24,971
 206
25,200
 15,891
 6,762
 22,653
 537
1-4 family residential58,960
 26,423
 29,691
 56,114
 6,393
59,306
 27,047
 29,250
 56,297
 6,488
Construction and other consumer real estate3,400
 963
 1,853
 2,816
 103
3,316
 917
 1,825
 2,742
 105
Other2,307
 160
 1,598
 1,758
 17
1,992
 1,484
 32
 1,516
 3
Total consumer loans92,325
 48,342
 37,317
 85,659
 6,719
89,814
 45,339
 37,869
 83,208
 7,133
Total$778,480
 $284,943
 $402,901
 $687,844
 $62,561
$781,102
 $250,739
 $444,399
 $695,138
 $76,704

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ZIONS BANCORPORATION AND SUBSIDIARIES

December 31, 2015December 31, 2015
(In thousands)

Unpaid
principal
balance
 Recorded investment 
Total
recorded
investment
 
Related
allowance
Unpaid
principal
balance
 Recorded investment 
Total
recorded
investment
 
Related
allowance
with no
allowance
 
with
allowance
 
with no
allowance
 
with
allowance
 
         
Loans held for sale$
 $
 $
 $
 $
         
Commercial:                  
Commercial and industrial$272,161
 $44,190
 $163,729
 $207,919
 $30,538
$272,161
 $44,190
 $163,729
 $207,919
 $30,538
Owner occupied141,526
 83,024
 43,243
 126,267
 5,486
141,526
 83,024
 43,243
 126,267
 5,486
Municipal1,430
 951
 
 951
 
1,430
 951
 
 951
 
Total commercial415,117
 128,165
 206,972
 335,137
 36,024
415,117
 128,165
 206,972
 335,137
 36,024
Commercial real estate:                  
Construction and land development22,791
 5,076
 9,558
 14,634
 618
22,791
 5,076
 9,558
 14,634
 618
Term142,239
 82,864
 34,361
 117,225
 2,604
142,239
 82,864
 34,361
 117,225
 2,604
Total commercial real estate165,030
 87,940
 43,919
 131,859
 3,222
165,030
 87,940
 43,919
 131,859
 3,222
Consumer:                  
Home equity credit line27,064
 18,980
 5,319
 24,299
 243
27,064
 18,980
 5,319
 24,299
 243
1-4 family residential74,009
 29,540
 41,155
 70,695
 8,736
74,009
 29,540
 41,155
 70,695
 8,736
Construction and other consumer real estate2,741
 989
 1,014
 2,003
 173
2,741
 989
 1,014
 2,003
 173
Other3,187
 36
 2,570
 2,606
 299
3,187
 36
 2,570
 2,606
 299
Total consumer loans107,001
 49,545
 50,058
 99,603
 9,451
107,001
 49,545
 50,058
 99,603
 9,451
Total$687,148
 $265,650
 $300,949
 $566,599
 $48,697
$687,148
 $265,650
 $300,949
 $566,599
 $48,697
Three Months Ended
June 30, 2016
 Six Months Ended
June 30, 2016
Three Months Ended
September 30, 2016
 Nine Months Ended
September 30, 2016
(In thousands)

Average
recorded
investment
 
Interest
income
recognized
 
Average
recorded
investment
 
Interest
income
recognized
Average
recorded
investment
 
Interest
income
recognized
 
Average
recorded
investment
 
Interest
income
recognized
       
Loans held for sale$18,561
 $
 $20,583
 $
       
Commercial:              
Commercial and industrial$429,681
 $1,176
 $317,211
 $2,505
$448,590
 $1,464
 $318,434
 $3,977
Owner occupied111,165
 3,131
 113,198
 5,557
100,386
 2,060
 103,439
 7,537
Municipal901
 
 916
 
877
 
 903
 
Total commercial541,747
 4,307
 431,325
 8,062
549,853
 3,524
 422,776
 11,514
Commercial real estate:              
Construction and land development11,658
 695
 11,922
 1,202
11,281
 863
 12,041
 2,065
Term98,234
 3,512
 96,925
 6,871
73,860
 2,689
 79,449
 9,378
Total commercial real estate109,892
 4,207
 108,847
 8,073
85,141
 3,552
 91,490
 11,443
Consumer:              
Home equity credit line24,609
 367
 24,227
 744
22,895
 323
 22,291
 1,029
1-4 family residential61,481
 455
 60,372
 901
61,149
 461
 57,815
 1,324
Construction and other consumer real estate2,829
 48
 2,814
 95
2,767
 43
 2,707
 134
Bankcard and other revolving plans
 1
 
 17

 1
 
 17
Other2,086
 92
 2,294
 200
1,912
 81
 2,166
 281
Total consumer loans91,005
 963
 89,707

1,957
88,723
 909
 84,979

2,785
Total$742,644
 $9,477
 $629,879
 $18,092
$723,717
 $7,985
 $599,245
 $25,742

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ZIONS BANCORPORATION AND SUBSIDIARIES

Three Months Ended
June 30, 2015
 Six Months Ended
June 30, 2015
Three Months Ended
September 30, 2015
 Nine Months Ended
September 30, 2015
(In thousands)

Average
recorded
investment
 
Interest
income
recognized
 
Average
recorded
investment
 
Interest
income
recognized
Average
recorded
investment
 
Interest
income
recognized
 
Average
recorded
investment
 
Interest
income
recognized
       
Loans held for sale$
 $
 $
 $
       
Commercial:              
Commercial and industrial$174,911
 $2,831
 $155,584
 $4,255
$191,642
 $1,314
 $158,825
 $5,525
Owner occupied144,613
 3,186
 142,817
 6,970
138,194
 2,752
 135,212
 9,706
Municipal1,008
 
 1,021
 
978
 
 1,007
 
Total commercial320,532
 6,017
 299,422
 11,225
330,814
 4,066
 295,044
 15,231
Commercial real estate:              
Construction and land development35,562
 1,628
 36,215
 2,177
31,506
 499
 31,920
 2,691
Term144,054
 5,063
 142,439
 10,038
119,694
 3,705
 124,446
 13,383
Total commercial real estate179,616
 6,691
 178,654
 12,215
151,200
 4,204
 156,366
 16,074
Consumer:              
Home equity credit line25,400
 416
 24,948
 821
25,095
 401
 24,329
 1,206
1-4 family residential69,874
 534
 68,464
 1,041
90,240
 398
 91,671
 1,803
Construction and other consumer real estate2,497
 22
 2,529
 64
5,540
 32
 2,342
 91
Bankcard and other revolving plans
 1
 1
 100

 1
 1
 101
Other4,176
 230
 4,463
 516
36
 177
 4,109
 692
Total consumer loans101,947
 1,203
 100,405
 2,542
120,911
 1,009
 122,452
 3,893
Total$602,095
 $13,911
 $578,481
 $25,982
$602,925
 $9,279
 $573,862
 $35,198
Modified and Restructured Loans
Loans may be modified in the normal course of business for competitive reasons or to strengthen the Company’s position. Loan modifications and restructurings may also occur when the borrower experiences financial difficulty and needs temporary or permanent relief from the original contractual terms of the loan. These modifications are structured on a loan-by-loan basis and, depending on the circumstances, may include extended payment terms, a modified interest rate, forgiveness of principal, or other concessions. Loans that have been modified to accommodate a borrower who is experiencing financial difficulties, and for which the Company has granted a concession that it would not otherwise consider, are considered TDRs.
We consider many factors in determining whether to agree to a loan modification involving concessions, and seek a solution that will both minimize potential loss to the Company and attempt to help the borrower. We evaluate borrowers’ current and forecasted future cash flows, their ability and willingness to make current contractual or proposed modified payments, the value of the underlying collateral (if applicable), the possibility of obtaining additional security or guarantees, and the potential costs related to a repossession or foreclosure and the subsequent sale of the collateral.
TDRs are classified as either accrual or nonaccrual loans. A loan on nonaccrual and restructured as a TDR will remain on nonaccrual status until the borrower has proven the ability to perform under the modified structure for a minimum of six months, and there is evidence that such payments can and are likely to continue as agreed. Performance prior to the restructuring, or significant events that coincide with the restructuring, are included in assessing whether the borrower can meet the new terms and may result in the loan being returned to accrual at the time of restructuring or after a shorter performance period. If the borrower’s ability to meet the revised payment schedule is uncertain, the loan remains classified as a nonaccrual loan. A TDR loan that specifies an interest rate that at the time of the restructuring is greater than or equal to the rate the bank is willing to accept for a new loan with comparable risk may not be reported as a TDR or an impaired loan in the calendar years subsequent to the restructuring if it is in compliance with its modified terms.

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ZIONS BANCORPORATION AND SUBSIDIARIES

Selected information on TDRs that includes the recorded investment on an accruing and nonaccruing basis by loan class and modification type is summarized in the following schedules:
June 30, 2016September 30, 2016
Recorded investment resulting from the following modification types:  Recorded investment resulting from the following modification types:  
(In thousands)

Interest
rate below
market
 
Maturity
or term
extension
 
Principal
forgiveness
 
Payment
deferral
 
Other1
 
Multiple
modification
types2
 Total
Interest
rate below
market
 
Maturity
or term
extension
 
Principal
forgiveness
 
Payment
deferral
 
Other1
 
Multiple
modification
types2
 Total
Accruing                          
Commercial:                          
Commercial and industrial$293
 $13,341
 $11
 $80
 $854
 $38,413
 $52,992
$255
 $17,606
 $9
 $71
 $11
 $40,104
 $58,056
Owner occupied2,181
 1,106
 909
 
 7,793
 16,919
 28,908
2,580
 109
 899
 
 7,703
 14,352
 25,643
Total commercial2,474
 14,447
 920
 80
 8,647
 55,332
 81,900
2,835
 17,715
 908
 71
 7,714
 54,456
 83,699
Commercial real estate:                          
Construction and land development42
 
 
 
 
 8,146
 8,188
41
 196
 
 
 
 7,358
 7,595
Term4,606
 467
 158
 978
 1,794
 13,591
 21,594
4,549
 444
 165
 979
 1,788
 10,327
 18,252
Total commercial real estate4,648
 467
 158
 978
 1,794
 21,737
 29,782
4,590
 640
 165
 979
 1,788
 17,685
 25,847
Consumer:                          
Home equity credit line197
 2,315
 9,955
 
 164
 2,702
 15,333
195
 1,358
 9,572
 4
 163
 2,677
 13,969
1-4 family residential2,009
 344
 5,727
 256
 3,180
 30,592
 42,108
2,326
 368
 6,416
 254
 3,209
 31,010
 43,583
Construction and other consumer real estate168
 350
 15
 1,142
 
 932
 2,607
165
 341
 14
 1,128
 
 915
 2,563
Other
 
 124
 
 
 
 124

 
 123
 
 
 
 123
Total consumer loans2,374
 3,009

15,821

1,398

3,344

34,226
 60,172
2,686
 2,067

16,125

1,386

3,372

34,602
 60,238
Total accruing9,496
 17,923
 16,899
 2,456
 13,785
 111,295
 171,854
10,111
 20,422
 17,198
 2,436
 12,874
 106,743
 169,784
Nonaccruing                          
Loans held for sale$
 $
 $
 $
 $
 $15,996
 $15,996
             
Commercial:                          
Commercial and industrial70
 308
 
 1,182
 17,879
 71,189
 90,628
$122
 $264
 $
 $1,130
 $33,902
 $32,280
 $67,698
Owner occupied1,090
 859
 
 2,968
 266
 16,761
 21,944
622
 788
 
 2,867
 253
 13,518
 18,048
Municipal
 893
 
 
 
 
 893

 869
 
 
 
 
 869
Total commercial1,160
 2,060
 
 4,150
 18,145
 87,950
 113,465
744
 1,921
 
 3,997
 34,155
 45,798
 86,615
Commercial real estate:                          
Construction and land development
 290
 
 
 1,726
 
 2,016

 45
 
 
 1,725
 410
 2,180
Term1,752
 1,128
 
 
 1,967
 9,531
 14,378
1,705
 1,093
 
 
 2,531
 3,052
 8,381
Total commercial real estate1,752
 1,418
 
 
 3,693
 9,531
 16,394
1,705
 1,138
 
 
 4,256
 3,462
 10,561
Consumer:                          
Home equity credit line
 601
 1,589
 46
 
 764
 3,000

 437
 1,357
 35
 
 682
 2,511
1-4 family residential
 280
 2,060
 292
 802
 6,904
 10,338

 243
 2,096
 284
 1,276
 5,583
 9,482
Construction and other consumer real estate
 92
 
 37
 
 53
 182

 90
 
 21
 
 47
 158
Total consumer loans
 973
 3,649
 375
 802
 7,721
 13,520

 770
 3,453
 340
 1,276
 6,312
 12,151
Total nonaccruing2,912
 4,451
 3,649
 4,525
 22,640
 105,202
 143,379
2,449
 3,829
 3,453
 4,337
 39,687
 55,572
 109,327
Total$12,408
 $22,374
 $20,548
 $6,981
 $36,425
 $216,497
 $315,233
$12,560
 $24,251
 $20,651
 $6,773
 $52,561
 $162,315
 $279,111

Table of Contents
ZIONS BANCORPORATION AND SUBSIDIARIES

December 31, 2015December 31, 2015
Recorded investment resulting from the following modification types:  Recorded investment resulting from the following modification types:  
(In thousands)

Interest
rate below
market
 
Maturity
or term
extension
 
Principal
forgiveness
 
Payment
deferral
 
Other1
 
Multiple
modification
types2
 Total
Interest
rate below
market
 
Maturity
or term
extension
 
Principal
forgiveness
 
Payment
deferral
 
Other1
 
Multiple
modification
types2
 Total
Accruing                          
Commercial:                          
Commercial and industrial$202
 $3,236
 $13
 $100
 $23,207
 $34,473
 $61,231
$202
 $3,236
 $13
 $100
 $23,207
 $34,473
 $61,231
Owner occupied1,999
 681
 929
 
 9,879
 16,339
 29,827
1,999
 681
 929
 
 9,879
 16,339
 29,827
Total commercial2,201
 3,917
 942
 100
 33,086
 50,812
 91,058
2,201
 3,917
 942
 100
 33,086
 50,812
 91,058
Commercial real estate:                          
Construction and land development94
 
 
 
 
 9,698
 9,792
94
 
 
 
 
 9,698
 9,792
Term4,696
 638
 166
 976
 2,249
 20,833
 29,558
4,696
 638
 166
 976
 2,249
 20,833
 29,558
Total commercial real estate4,790
 638
 166
 976
 2,249
 30,531
 39,350
4,790
 638
 166
 976
 2,249
 30,531
 39,350
Consumer:                          
Home equity credit line192
 2,147
 9,763
 
 164
 3,155
 15,421
192
 2,147
 9,763
 
 164
 3,155
 15,421
1-4 family residential2,669
 353
 6,747
 433
 3,440
 32,903
 46,545
2,669
 353
 6,747
 433
 3,440
 32,903
 46,545
Construction and other consumer real estate174
 384
 
 
 
 1,152
 1,710
174
 384
 
 
 
 1,152
 1,710
Other
 
 
 
 
 
 

 
 
 
 
 
 
Total consumer loans3,035
 2,884
 16,510
 433
 3,604
 37,210
 63,676
3,035
 2,884
 16,510
 433
 3,604
 37,210
 63,676
Total accruing10,026
 7,439
 17,618
 1,509
 38,939
 118,553
 194,084
10,026
 7,439
 17,618
 1,509
 38,939
 118,553
 194,084
Nonaccruing                          
Loans held for sale$
 $
 $
 $
 $
 $
 $
             
Commercial:                          
Commercial and industrial28
 455
 
 1,879
 3,577
 49,617
 55,556
$28
 $455
 $
 $1,879
 $3,577
 $49,617
 $55,556
Owner occupied685
 1,669
 
 724
 34
 16,335
 19,447
685
 1,669
 
 724
 34
 16,335
 19,447
Municipal
 951
 
 
 
 
 951

 951
 
 
 
 
 951
Total commercial713
 3,075
 
 2,603
 3,611
 65,952
 75,954
713
 3,075
 
 2,603
 3,611
 65,952
 75,954
Commercial real estate:                          
Construction and land development
 333
 
 
 3,156
 208
 3,697

 333
 
 
 3,156
 208
 3,697
Term1,844
 
 
 
 2,960
 5,203
 10,007
1,844
 
 
 
 2,960
 5,203
 10,007
Total commercial real estate1,844
 333
 
 
 6,116
 5,411
 13,704
1,844
 333
 
 
 6,116
 5,411
 13,704
Consumer:                          
Home equity credit line7
 500
 1,400
 54
 
 233
 2,194
7
 500
 1,400
 54
 
 233
 2,194
1-4 family residential
 275
 2,052
 136
 1,180
 7,299
 10,942

 275
 2,052
 136
 1,180
 7,299
 10,942
Construction and other consumer real estate
 101
 17
 48
 
 44
 210

 101
 17
 48
 
 44
��210
Total consumer loans7
 876
 3,469
 238
 1,180
 7,576
 13,346
7
 876
 3,469
 238
 1,180
 7,576
 13,346
Total nonaccruing2,564
 4,284
 3,469
 2,841
 10,907
 78,939
 103,004
2,564
 4,284
 3,469
 2,841
 10,907
 78,939
 103,004
Total$12,590
 $11,723
 $21,087
 $4,350
 $49,846
 $197,492
 $297,088
$12,590
 $11,723
 $21,087
 $4,350
 $49,846
 $197,492
 $297,088
1 
Includes TDRs that resulted from other modification types including, but not limited to, a legal judgment awarded on different terms, a bankruptcy plan confirmed on different terms, a settlement that includes the delivery of collateral in exchange for debt reduction, etc.
2 
Includes TDRs that resulted from a combination of any of the previous modification types.

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Unfunded lending commitments on TDRs amounted to approximately $2.311.8 million at JuneSeptember 30, 2016 and $7.5 million at December 31, 2015.
The total recorded investment of all TDRs in which interest rates were modified below market was $167.4$145.1 million at JuneSeptember 30, 2016 and $188.0 million at December 31, 2015. These loans are included in the previous schedule in the columns for interest rate below market and multiple modification types.

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The net financial impact on interest income due to interest rate modifications below market for accruing TDRs is summarized in the following schedule:
Three Months Ended
June 30,
 Six Months Ended
June 30,
Three Months Ended
September 30,
 Nine Months Ended
September 30,
(In thousands)2016 2015 2016 20152016 2015 2016 2015
Commercial:              
Commercial and industrial$(79) $(64) $(151) $(119)$(89) $(67) $(240) $(189)
Owner occupied(50) (72) (99) (184)(49) (46) (148) (230)
Total commercial(129) (136) (250) (303)(138) (113) (388) (419)
Commercial real estate:              
Construction and land development(1) (26) (2) (63)(1) (26) (3) (88)
Term(73) (103) (153) (212)(65) (84) (218) (295)
Total commercial real estate(74) (129) (155) (275)(66) (110) (221) (383)
Consumer:              
Home equity credit line
 
 (1) (1)
 
 (1) (1)
1-4 family residential(206) (267) (436) (538)(194) (260) (630) (800)
Construction and other consumer real estate(5) (7) (10) (14)(4) (7) (14) (21)
Total consumer loans(211) (274) (447) (553)(198) (267) (645) (822)
Total decrease to interest income1
$(414) $(539) $(852) $(1,131)$(402) $(490) $(1,254) $(1,624)
1 
Calculated based on the difference between the modified rate and the premodified rate applied to the recorded investment.
On an ongoing basis, we monitor the performance of all TDRs according to their restructured terms. Subsequent payment default is defined in terms of delinquency, when principal or interest payments are past due 90 days or more for commercial loans, or 60 days or more for consumer loans.

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The recorded investment of accruing and nonaccruing TDRs that had a payment default during the period listed below (and are still in default at period end) and are within 12 months or less of being modified as TDRs is as follows:
Three Months Ended
June 30, 2016
 Six Months Ended
June 30, 2016
Three Months Ended
September 30,
 2016
 Nine Months Ended
September 30, 2016
(In thousands)Accruing Nonaccruing Total Accruing Nonaccruing TotalAccruing Nonaccruing Total Accruing Nonaccruing Total
Commercial:                      
Commercial and industrial$
 $15,306
 $15,306
 $
 $17,433
 $17,433
$31
 $3,240
 $3,271
 $31
 $3,309
 $3,340
Owner occupied
 3,488
 3,488
 
 3,488
 3,488
3,360
 
 3,360
 3,360
 
 3,360
Total commercial
 18,794
 18,794
 
 20,921
 20,921
3,391
 3,240
 6,631
 3,391
 3,309
 6,700
Commercial real estate:                      
Construction and land development
 
 
 
 
 

 
 
 
 
 
Term
 
 
 
 
 

 45
 45
 
 45
 45
Total commercial real estate
 
 
 
 
 

 45
 45
 
 45
 45
Consumer:                      
Home equity credit line
 
 
 
 
 

 
 
 
 
 
1-4 family residential
 318
 318
 
 318
 318

 
 
 
 118
 118
Construction and other consumer real estate
 
 
 
 
 

 
 
 
 
 
Total consumer loans
 318
 318
 
 318
 318

 
 
 
 118
 118
Total$
 $19,112
 $19,112
 $
 $21,239
 $21,239
$3,391
 $3,285
 $6,676
 $3,391
 $3,472
 $6,863

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Three Months Ended
June 30, 2015
 Six Months Ended
June 30, 2015
Three Months Ended
September 30, 2015
 Nine Months Ended
September 30, 2015
(In thousands)Accruing Nonaccruing Total Accruing Nonaccruing TotalAccruing Nonaccruing Total Accruing Nonaccruing Total
Commercial:                      
Commercial and industrial$
 $135
 $135
 $
 $135
 $135
$
 $9
 $9
 $
 $104
 $104
Owner occupied
 1,098
 1,098
 
 2,057
 2,057

 
 
 
 943
 943
Total commercial
 1,233
 1,233
 
 2,192
 2,192

 9
 9
 
 1,047
 1,047
Commercial real estate:                      
Construction and land development
 
 
 
 
 

 
 
 
 
 
Term
 846
 846
 
 846
 846

 
 
 
 833
 833
Total commercial real estate
 846
 846
 
 846
 846

 
 
 
 833
 833
Consumer:                      
Home equity credit line
 
 
 
 
 

 
 
 
 
 
1-4 family residential
 107
 107
 
 107
 107

 595
 595
 
 595
 595
Construction and other consumer real estate
 
 
 
 
 

 
 
 
 
 
Total consumer loans
 107
 107
 
 107
 107

 595
 595
 
 595
 595
Total$
 $2,186
 $2,186
 $
 $3,145
 $3,145
$
 $604
 $604
 $
 $2,475
 $2,475
Note: Total loans modified as TDRs during the 12 months previous to JuneSeptember 30, 2016 and 2015 were $161.6$139.4 million and $88.7$93.4 million, respectively.
At JuneSeptember 30, 2016 and December 31, 2015, the amount of foreclosed residential real estate property held by the Company was approximately $2.8$3.0 million and $0.5 million, and the recorded investment in consumer mortgage loans collateralized by residential real estate property that are in the process of foreclosure was approximately $8.5$9.5 million and $12.5 million, respectively.
Concentrations of Credit Risk
Credit risk is the possibility of loss from the failure of a borrower, guarantor, or another obligor to fully perform under the terms of a credit-related contract. Credit risks (whether on- or off-balance sheet) may occur when individual borrowers, groups of borrowers, or counterparties have similar economic characteristics, including industries, geographies, collateral types, sponsors, etc., and are similarly affected by changes in economic or other conditions. Credit risk also includes the loss that would be recognized subsequent to the reporting date if

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counterparties failed to perform as contracted. See Note 7 for a discussion of counterparty risk associated with the Company’s derivative transactions.
We perform an ongoing analysis of our loan portfolio to evaluate whether there is any significant exposure to any concentrations of credit risk. Based on this analysis, we believe that the loan portfolio is generally well diversified; however, there are certain significant concentrations in CRE and oil and gas-related lending. Further, we cannot guarantee that we have fully understood or mitigated all risk concentrations or correlated risks. We have adopted and adhere to concentration limits on various types of CRE lending, particularly construction and land development lending, leveraged and enterprise value lending, municipal lending, and oil and gas-related lending. All of these limits are continually monitored and revised as necessary.
Purchased Loans
Background and Accounting
We purchase loans in the ordinary course of business and account for them and the related interest income based on their performing status at the time of acquisition. PCI loans have evidence of credit deterioration at the time of acquisition and it is probable that not all contractual payments will be collected. Interest income for PCI loans is accounted for on an expected cash flow basis. Certain other loans acquired by the Company that are not credit-impaired include loans with revolving privileges and are excluded from the PCI tabular disclosures following. Interest income for these loans is accounted for on a contractual cash flow basis. Upon acquisition, in accordance with applicable accounting guidance, the acquired loans were recorded at their fair value without a corresponding ALLL. Certain acquired loans with similar characteristics such as risk exposure, type, size, etc., are grouped and accounted for in loan pools.

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Outstanding Balances and Accretable Yield
The outstanding balances of all required payments and the related carrying amounts for PCI loans are as follows:
(In thousands)June 30, 2016 December 31, 2015September 30, 2016 December 31, 2015
              
Commercial $50,951
 $72,440
  $47,982
 $72,440
 
Commercial real estate 53,083
 65,167
  48,036
 65,167
 
Consumer 9,482
 11,082
  9,027
 11,082
 
Outstanding balance $113,516
 $148,689
  $105,045
 $148,689
 
          
Carrying amount $97,383
 $125,029
  $89,221
 $125,029
 
Less ALLL 1,520
 945
  1,625
 945
 
Carrying amount, net $95,863
 $124,084
  $87,596
 $124,084
 
At the time of acquisition of PCI loans, we determine the loan’s contractually required payments in excess of all cash flows expected to be collected as an amount that should not be accreted (nonaccretable difference). With respect to the cash flows expected to be collected, the portion representing the excess of the loan’s expected cash flows over our initial investment (accretable yield) is accreted into interest income on a level yield basis over the remaining expected life of the loan or pool of loans. The effects of estimated prepayments are considered in estimating the expected cash flows.
Certain PCI loans are not accounted for as previously described because the estimation of cash flows to be collected involves a high degree of uncertainty. Under these circumstances, the accounting guidance provides that interest income is recognized on a cash basis similar to the cost recovery methodology for nonaccrual loans. The net carrying amounts in the preceding schedule also include the amounts for these loans, which were $1.7$0.7 million at JuneSeptember 30, 2016. There were no amounts of these loans at December 31, 2015.

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Changes in the accretable yield for PCI loans were as follows:
(In thousands)Three Months Ended
June 30,
 Six Months Ended
June 30,
Three Months Ended
September 30,
 Nine Months Ended
September 30,
2016 2015 2016 20152016 2015 2016 2015
              
Balance at beginning of period$43,105
 $50,931
 $39,803
 $45,055
$38,033
 $46,702
 $39,803
 $45,055
Accretion(7,255) (11,674) (13,393) (21,257)(5,633) (7,535) (19,026) (28,792)
Reclassification from nonaccretable difference1,140
 4,579
 9,570
 17,860
127
 1,005
 9,697
 18,865
Disposals and other1,043
 2,866
 2,053
 5,044
1,629
 1,126
 3,682
 6,170
Balance at end of period$38,033
 $46,702
 $38,033
 $46,702
$34,156
 $41,298
 $34,156
 $41,298
Note: Amounts have been adjusted based on refinements to the original estimates of the accretable yield.
The primary drivers of reclassification to accretable yield from nonaccretable difference and increases in disposals and other resulted primarily from (1) changes in estimated cash flows, (2) unexpected payments on nonaccrual loans, and (3) recoveries on zero balance loans pools. See subsequent discussion under changes in cash flow estimates.
ALLL Determination
For all acquired loans, the ALLL is only established for credit deterioration subsequent to the date of acquisition and represents our estimate of the inherent losses in excess of the book value of acquired loans. The ALLL for acquired loans is included in the overall ALLL in the balance sheet.
During the three and sixnine months endedJune September 30, we adjusted the ALLL for acquired loans by recording a provision for loan losses of $1.3$1.1 million and $0.9$1.9 million in 2016, and $0.3$0.8 million and $(0.5)$0.3 million in 2015, respectively. The provision is net of the ALLL reversals resulting from changes in cash flow estimates, which are discussed subsequently.

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Changes in the provision for loan losses and related ALLL are driven in large part by the same factors that affect the changes in reclassification from nonaccretable difference to accretable yield, as discussed under changes in cash flow estimates.
Changes in Cash Flow Estimates
Over the life of the loan or loan pool, we continue to estimate cash flows expected to be collected. We evaluate quarterly at the balance sheet date whether the estimated present values of these loans using the effective interest rates have decreased below their carrying values. If so, we record a provision for loan losses.
For increases in carrying values that resulted from better-than-expected cash flows, we use such increases first to reverse any existing ALLL. During the three and sixnine months endedendeJuned September 30, total reversals to the ALLL, including the impact of increases in estimated cash flows, were $0.1$0.7 million and $0.51.2 million in 2016, and $1.1$0.6 million and $2.53.1 million in 2015, respectively. When there is no current ALLL, we increase the amount of accretable yield on a prospective basis over the remaining life of the loan and recognize this increase in interest income.
For the three and sixnine months endedendeJuned September 30, the impact of increased cash flow estimates recognized in the statement of income for acquired loans with no ALLL was approximately $5.6$4.3 million and $10.114.3 million in 2016, and $9.35.4 million and $16.722.1 million in 2015, respectively, of additional interest income.
7.DERIVATIVE INSTRUMENTS AND HEDGING ACTIVITIES
Objectives
Our objectives in using derivatives are to add stability to interest income or expense, to modify the duration of specific assets or liabilities as we consider advisable, to manage exposure to interest rate movements or other identified risks, and/or to directly offset derivatives sold to our customers. We apply hedge accounting to certain derivatives executed for risk management purposes as described in more detail subsequently. However, we do not apply hedge accounting to all of the derivatives involved in our risk management activities. Derivatives not

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designated as accounting hedges are not speculative and are used to economically manage our exposure to interest rate movements and other identified risks, but do not meet the strict hedge accounting requirements.
Accounting
We record all derivatives on the balance sheet at fair value. Note 10 discusses the process to estimate fair value for derivatives. The accounting for changes in the fair value of derivatives depends on the intended use of the derivative and the resulting accounting designation. Derivatives used to hedge the exposure to changes in the fair value of an asset, liability, or firm commitment attributable to a particular risk, such as interest rate risk, are considered fair value hedges. Derivatives used to hedge the exposure to variability in expected cash flows, or other types of forecasted transactions, are considered cash flow hedges.
For derivatives designated as fair value hedges, changes in the fair value of the derivative are recognized in earnings together with changes in the fair value of the related hedged item. The net amount, if any, representing hedge ineffectiveness, is reflected in earnings. In previous years, we used fair value hedges to manage interest rate exposure to certain long-term debt. These hedges have been terminated and their remaining balances were completely amortized into earnings during 2015.
For derivatives designated as cash flow hedges, the effective portion of changes in the fair value of the derivative are recorded in OCI and recognized in earnings when the hedged transaction affects earnings. The ineffective portion of changes in the fair value of cash flow hedges is recognized directly in earnings. We use interest rate swaps as part of our cash flow hedging strategy to hedge the variable cash flows associated with designated commercial loans. These interest rate swap agreements designated as cash flow hedges involve the receipt of fixed-rate amounts in exchange for variable-rate payments over the life of the agreements without exchange of the underlying notional amount. NoAlthough we have foreign operations as a result of our branch in Grand Cayman, Cayman Islands B.W.I., no derivatives have been designated as hedges of net investments in foreign operations.

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We assess the effectiveness of each hedging relationship by comparing the changes in fair value or cash flows on the derivative hedging instrument with the changes in fair value or cash flows on the designated hedged item or transaction. For derivatives not designated as accounting hedges, changes in fair value are recognized in earnings. The remaining balances of any derivative instruments terminated prior to maturity, including amounts in accumulated other comprehensive income (“AOCI”) for swap hedges, are accreted or amortized to interest income or expense over the period to their previously stated maturity dates.
Amounts in AOCI are reclassified to interest income as interest is earned on related variable-rate loans and as amounts for terminated hedges are accreted or amortized to earnings. For the 12 months following JuneSeptember 30, 2016, we estimate that an additional $8.75.2 million will be reclassified.
Collateral and Credit Risk
Exposure to credit risk arises from the possibility of nonperformance by counterparties. Financial institutions which are well capitalized and well established are the counterparties for those derivatives entered into for asset liability management and to offset derivatives sold to our customers. The Company reduces its counterparty exposure for derivative contracts by centrally clearing all eligible derivatives.
For those derivatives that are not centrally cleared, the counterparties are typically financial institutions or customers of the Company. For those that are financial institutions, we manage our credit exposure through the use of a Credit Support Annex (“CSA”) to International Swaps and Derivative Association (“ISDA”) master agreements. Eligible collateral types are documented by the CSA and controlled under the Company’s general credit policies. Collateral balances are typically monitored on a daily basis. A valuation haircut policy reflects the fact that collateral may fall in value between the date the collateral is called and the date of liquidation or enforcement. In practice, all of the Company’s collateral held as credit risk mitigation under a CSA is cash.
We offer interest rate swaps to our customers to assist them in managing their exposure to changing interest rates. Upon issuance, all of these customer swaps are immediately offset through matching derivative contracts, such that the Company minimizes its interest rate risk exposure resulting from such transactions. Most of these customers do

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not have the capability for centralized clearing. Therefore, we manage the credit risk through loan underwriting, which includes a credit risk exposure formula for the swap, the same collateral and guarantee protection applicable to the loan and credit approvals, limits, and monitoring procedures. Fee income from customer swaps is included in other service charges, commissions and fees. No significant losses on derivative instruments have occurred as a result of counterparty nonperformance. Nevertheless, the related credit risk is considered and measured when and where appropriate. See Note 6 for further discussion of our underwriting, collateral requirements, and other procedures used to address credit risk.
Our derivative contracts require us to pledge collateral for derivatives that are in a net liability position at a given balance sheet date. Certain of these derivative contracts contain credit-risk-related contingent features that include the requirement to maintain a minimum debt credit rating. We may be required to pledge additional collateral if a credit-risk-related feature were triggered, such as a downgrade of our credit rating. However, in past situations, not all counterparties have demanded that additional collateral be pledged when provided for under their contracts. At JuneSeptember 30, 2016, the fair value of our derivative liabilities was $127.8$111.9 million, for which we were required to pledge cash collateral of approximately $110.7113.1 million in the normal course of business. If our credit rating were downgraded one notch by either Standard & Poor’s or Moody’s at JuneSeptember 30, 2016, the additional amount of collateral we could be required to pledge is approximately $2.92.8 million. As a result of the Dodd-Frank Act, all newly eligible derivatives entered into are cleared through a central clearinghouse. Derivatives that are centrally cleared do not have credit-risk-related features that require additional collateral if our credit rating were downgraded.

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Derivative Amounts
Selected information with respect to notional amounts and recorded gross fair values at JuneSeptember 30, 2016 and December 31, 2015, and the related gain (loss) of derivative instruments for the sixnine months ended JuneSeptember 30, 2016 and 2015 is summarized as follows:
June 30, 2016 December 31, 2015September 30, 2016 December 31, 2015
Notional
amount
 Fair value 
Notional
amount
 Fair value
Notional
amount
 Fair value 
Notional
amount
 Fair value
(In thousands)
Other
assets
 
Other
liabilities
 
Other
assets
 
Other
liabilities
Other
assets
 
Other
liabilities
 
Other
assets
 
Other
liabilities
Derivatives designated as hedging instruments                      
Cash flow hedges:                      
Interest rate swaps$1,387,500
 $27,073
 $
 $1,387,500
 $5,461
 $956
$1,387,500
 $18,888
 $
 $1,387,500
 $5,461
 $956
Total derivatives designated as hedging instruments1,387,500
 27,073
 
 1,387,500
 5,461
 956
1,387,500
 18,888
 
 1,387,500
 5,461
 956
Derivatives not designated as hedging instruments                      
Interest rate swaps and forwards219,708
 2,678
 406
 40,314
 
 8
262,187
 3,582
 230
 40,314
 
 8
Interest rate swaps for customers 1
3,755,129
 104,996
 111,994
 3,256,190
 51,353
 53,843
3,994,275
 95,424
 102,605
 3,256,190
 51,353
 53,843
Foreign exchange503,426
 17,719
 15,357
 463,064
 20,824
 17,761
570,213
 11,171
 9,094
 463,064
 20,824
 17,761
Total derivatives not designated as hedging instruments4,478,263
 125,393
 127,757
 3,759,568
 72,177
 71,612
4,826,675
 110,177
 111,929
 3,759,568
 72,177
 71,612
Total derivatives$5,865,763
 $152,466
 $127,757
 $5,147,068
 $77,638
 $72,568
$6,214,175
 $129,065
 $111,929
 $5,147,068
 $77,638
 $72,568
1 Notional amounts include both the customer swaps and the offsetting derivative contracts.
 Three Months Ended September 30, 2016 Nine Months Ended September 30, 2016
 Amount of derivative gain (loss) recognized/reclassified
(In thousands)
 
OCI 
Reclassified from AOCI to interest income 2
 Noninterest income (expense) Offset to interest expense OCI 
Reclassified
from AOCI
to interest
income 2
 Noninterest
income
(expense)
 Offset to
interest
expense
Derivatives designated as hedging instruments               
Cash flow hedges 1:
               
Interest rate swaps$(5,381) $2,804
     $23,109
 $8,739
    

(5,381) 2,804
 

   23,109
 8,739
 

  
Fair value hedges:               
Terminated swaps on long-term debt      $
       $
Total derivatives designated as hedging instruments(5,381) 2,804
 

 
 23,109
 8,739
 

 
Derivatives not designated as hedging instruments               
Interest rate swaps and forward contracts    $904
       $3,060
  
Interest rate swaps for customers    3,815
       4,543
  
Foreign exchange    3,472
       8,140
  
Total derivatives not designated as hedging instruments    8,191
       15,743
  
Total derivatives$(5,381) $2,804
 $8,191
 $
 $23,109
 $8,739
 $15,743
 $

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 Three Months Ended June 30, 2016 Six Months Ended June 30, 2016
 Amount of derivative gain (loss) recognized/reclassified
(In thousands)
 
OCI 
Reclassified from AOCI to interest income 2
 Noninterest income (expense) Offset to interest expense OCI 
Reclassified
from AOCI
to interest
income 3
 
Noninterest
income
(expense)
 
Offset to
interest
expense
Derivatives designated as hedging instruments               
Cash flow hedges 1:
               
Interest rate swaps$7,794
 $2,938
     $28,490
 $5,935
    

7,794
 2,938
 

   28,490
 5,935
 

  
Fair value hedges:               
Terminated swaps on long-term debt      $
       $
Total derivatives designated as hedging instruments7,794
 2,938
 

 
 28,490
 5,935
 

 
Derivatives not designated as hedging instruments               
Interest rate swaps and forward contracts    $1,921
       $2,156
  
Interest rate swaps for customers    1,237
       728
  
Foreign exchange    2,432
       4,668
  
Total derivatives not designated as hedging instruments    5,590
       7,552
  
Total derivatives$7,794
 $2,938
 $5,590
 $
 $28,490
 $5,935
 $7,552
 $
Three Months Ended June 30, 2015 Six Months Ended June 30, 2015Three Months Ended September 30, 2015 Nine Months Ended September 30, 2015
Amount of derivative gain (loss) recognized/reclassifiedAmount of derivative gain (loss) recognized/reclassified
(In thousands)
OCI 
Reclassified from AOCI to interest income 2
 Noninterest income (expense) Offset to interest expense OCI 
Reclassified
from AOCI
to interest
income 3
 
Noninterest
income
(expense)
 
Offset to
interest
expense
OCI 
Reclassified from AOCI to interest income 2
 Noninterest income (expense) Offset to interest expense OCI 
Reclassified
from AOCI
to interest
income 2
 
Noninterest
income
(expense)
 
Offset to
interest
expense
Derivatives designated as hedging instruments                              
Cash flow hedges 1:
                              
Interest rate swaps$(424) $1,218
     $3,829
 $2,234
    $17,343
 $2,957
     $21,172
 $5,191
    
(424) 1,218
 

   3,829
 2,234
 

  17,343
 2,957
 

   21,172
 5,191
 

  
Fair value hedges:                              
Terminated swaps on long-term debt      $465
       $933
      $431
       $1,364
Total derivatives designated as hedging instruments(424) 1,218
 

 465
 3,829
 2,234
 

 933
17,343
 2,957
 

 431
 21,172
 5,191
 

 1,364
Derivatives not designated as hedging instruments                              
Interest rate swaps for customers    $3,873
       $4,390
      $939
       $5,329
  
Futures contracts    
       1
      1
       2
  
Foreign exchange    1,697
       4,432
      2,506
       6,938
  
Total derivatives not designated as hedging instruments    5,570
       8,823
      3,446
       12,269
  
Total derivatives$(424) $1,218
 $5,570
 $465
 $3,829
 $2,234
 $8,823
 $933
$17,343
 $2,957
 $3,446
 $431
 $21,172
 $5,191
 $12,269
 $1,364
Note: These schedules are not intended to present at any given time the Company’s long/short position with respect to its derivative contracts.
1 
Amounts recognized in OCI and reclassified from AOCI represent the effective portion of the change in fair value of the derivative.
2 
Amounts for the three and sixnine months ended JuneSeptember 30, of $2.9$2.8 million and $5.9$8.7 million in 2016, and $1.2$3.0 million and $2.2$5.2 million in 2015, respectively, are the amounts of reclassification to earnings from AOCI presented in Note 8.

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The fair value of derivative assets was reduced by a net credit valuation adjustment of $7.0$7.2 million and $1.7$3.0 million at JuneSeptember 30, 2016 and 2015, respectively. The adjustment for derivative liabilities was not significant at JuneSeptember 30, 2016 and 2015. These adjustments are required to reflect both our own nonperformance risk and the respective counterparty’s nonperformance risk.
8.DEBT AND SHAREHOLDERS’ EQUITY
Long-term debt is summarized as follows:
(In thousands)June 30,
2016
 December 31, 2015September 30,
2016
 December 31, 2015
      
Junior subordinated debentures related to trust preferred securities$164,950
 $164,950
$36,083
 $164,950
Subordinated notes246,357
 246,170
246,453
 246,170
Senior notes286,578
 400,334
287,065
 400,334
Capital lease obligations827
 912
784
 912
Total$698,712
 $812,366
$570,385
 $812,366
The preceding carrying values represent the par value of the debt adjusted for any unamortized premium or discount or unamortized debt issuance costs. The amount of long-term debt as of December 31, 2015 presented in the schedule differs from the amount in our 2015 10-K as a result of the reclassification of unamortized debt issuance costs to long-term debt in compliance with ASU 2015-03.
Debt Redemptions and Maturities
During the first sixnine months of 2016, $89 million of our 4.0% senior notes matured. In addition, we purchased $15 million of our 4.5% senior notes and redeemed $11 million of our 3.6% senior medium-term notes.

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We have elected to exercise our right to redeem the junior subordinated debentures related to trust preferred securities issued to the following trusts, or intend to make such election when notice provisions allow.trusts. Redemptions will occur atincluded a total of $129 million in the next payment date.third quarter of 2016, and $36 million in the fourth quarter of 2016. The following schedule presents the outstanding trust preferred securities balances as of September 30, 2016 and December 31, 2015.
(In thousands) Balance 
Coupon rate 1
 Next payment date September 30,
2016
 December 31,
2015
 
Coupon rate 1
 Redemption date
        
Amegy Statutory Trust I $51,547
 3mL+2.85% September 17, 2016 $
 $51,547
 3mL+2.85% September 17, 2016
Amegy Statutory Trust II 36,083
 3mL+1.90% October 7, 2016 36,083
 36,083
 3mL+1.90% October 7, 2016
Amegy Statutory Trust III 61,856
 3mL+1.78% September 15, 2016 
 61,856
 3mL+1.78% September 15, 2016
Stockmen’s Statutory Trust II 7,732
 3mL+3.15% September 26, 2016 
 7,732
 3mL+3.15% September 26, 2016
Stockmen’s Statutory Trust III 7,732
 3mL+2.89% September 17, 2016 
 7,732
 3mL+2.89% September 17, 2016
Total $164,950
  $36,083
 $164,950
 
1 
Designation of “3mL” is three-month London Interbank Offered Rate (“LIBOR”).
Shareholders’ Equity
On April 25, 2016, we launched a tender offer to purchase up to $120 million par amount of certain outstanding preferred stock. Our preferred stock decreased by $119 million in the second quarter of 2016 as a result of the tender offer, including the purchase of $27 million of itsour Series I preferred stock, $59 million
of itsour Series J preferred stock, and $33 million of itsour Series G preferred stock for an aggregate cash payment of 126$126 million. The total one-time reduction to net earnings applicable to common shareholders associated with the preferred stock redemption was $9.8 million.
Accumulated other comprehensive income (loss) increased to $24
During the third quarter of 2016, the Company commenced its common stock buyback program and repurchased 1.47 million at June 30, 2016 from $(12) million at March 31, 2016 and $(55) million at December 31, 2015, primarily asshares of common stock outstanding with a result of improvement in the fair value of $45 million at an average price of $30.64 per share. Since September 30, 2016, the Company’s AFS securities portfolio due largely to changesCompany has repurchased 1.42 million shares of our common stock outstanding with a fair value of $45 million at an average price of $31.69 per share, leaving $90 million of buyback capacity remaining in the interest rate environment.

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Basel III Capital Framework
Effective January 1, 2015, we adopted the new Basel III capital framework that was issued by the Federal Reserve for U.S. banking organizations. We adopted the new capital rules on a phase-in basis and will adopt the fully phased-in requirements effective January 1, 2019.
Accumulated Other Comprehensive Income
Accumulated other comprehensive income (loss) was $10 million at September 30, 2016 compared to $24 million at June 30, 2016 and $(55) million at December 31, 2015. The increase during the first nine months of 2016 was primarily due to an improvement in the fair value of the Company’s AFS securities portfolio due largely to changes in the interest rate environment.

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Changes in AOCI by component are as follows:
(In thousands)

Net unrealized gains (losses) on investment securities Net unrealized gains (losses) on derivatives and other Pension and post-retirement Total
Six Months Ended June 30, 2016           
Balance at December 31, 2015 $(18,369)   $1,546
  $(37,789) $(54,612)
Other comprehensive income (loss) before reclassifications, net of tax 65,027
   17,615
  (665) 81,977
Amounts reclassified from AOCI, net of tax (33)   (3,680)  
 (3,713)
Other comprehensive income (loss) 64,994
   13,935
  (665) 78,264
Balance at June 30, 2016 $46,625
   $15,481
  $(38,454) $23,652
Income tax expense included in other comprehensive income $40,322
   $8,407
  $665
 $49,394
Six Months Ended June 30, 2015           
Balance at December 31, 2014 $(91,921)   $2,226
  $(38,346) $(128,041)
Other comprehensive income before reclassifications, net of tax 4,131
   4,308
  
 8,439
Amounts reclassified from AOCI, net of tax 85,812
   (1,382)  
 84,430
Other comprehensive income 89,943
   2,926
  
 92,869
Balance at June 30, 2015 $(1,978)   $5,152
  $(38,346) $(35,172)
Income tax expense included in other comprehensive income $58,778
   $1,867
  $
 $60,645
(In thousands)

Net unrealized gains (losses) on investment securities Net unrealized gains (losses) on derivatives and other Pension and post-retirement Total
Nine Months Ended September 30, 2016           
Balance at December 31, 2015 $(18,369)   $1,546
  $(37,789) $(54,612)
OCI (loss) before reclassifications, net of tax 54,316
   16,437
  (665) 70,088
Amounts reclassified from AOCI, net of tax (57)   (5,418)  
 (5,475)
OCI (loss) 54,259
   11,019
  (665) 64,613
Balance at September 30, 2016 $35,890
   $12,565
  $(38,454) $10,001
Income tax expense included in OCI $33,742
   $6,619
  $665
 $41,026
Nine Months Ended September 30, 2015           
Balance at December 31, 2014 $(91,921)   $2,226
  $(38,346) $(128,041)
OCI before reclassifications, net of tax 15,398
   13,035
  
 28,433
Amounts reclassified from AOCI, net of tax 85,845
   (3,212)  
 82,633
OCI 101,243
   9,823
  
 111,066
Balance at September 30, 2015 $9,322
   $12,049
  $(38,346) $(16,975)
Income tax expense included in OCI $65,549
   $6,311
  $
 $71,860
 
Amounts reclassified
from AOCI 1
 
Statement of income (SI) Balance sheet
(BS)
  
Amounts reclassified
from AOCI 1
 
Statement of income (SI) Balance sheet
(BS)
 
(In thousands) Three Months Ended
June 30,
 Six Months Ended
June 30,
  Three Months Ended
September 30,
 Nine Months Ended
September 30,
 
Details about AOCI components 2016 2015 2016 2015 Affected line item 2016 2015 2016 2015 Affected line item
                  
Net realized gains (losses) on investment securities $25
 $(138,436) $53
 $(138,675) SI Fixed income securities gains (losses), net $39
 $(53) $92
 $(138,728) SI Fixed income securities gains (losses), net
Income tax expense (benefit) 9
 (52,772) 20
 (52,863)  15
 (20) 35
 (52,883) 
Amounts reclassified from AOCI $16
 $(85,664) $33
 $(85,812)  $24
 $(33) $57
 $(85,845) 
Net unrealized gains on derivative instruments $2,938
 $1,218
 $5,935
 $2,234
 SI Interest and fees on loans $2,804
 $2,957
 $8,739
 $5,191
 SI Interest and fees on loans
Income tax expense 1,116
 465
 2,255
 852
  1,066
 1,127
 3,321
 1,979
 
Amounts Reclassified from AOCI $1,822
 $753
 $3,680
 $1,382
  $1,738
 $1,830
 $5,418
 $3,212
 
1 
Negative reclassification amounts indicate decreases to earnings in the statement of income and increases to balance sheet assets. The opposite applies to positive reclassification amounts.
9.INCOME TAXES
The effective income tax rate of 34.6%33.7% for the secondthird quarter of 2016 was higher than the 2015 secondthird quarter rate of 28.3%28.8%. The tax rates for both the secondthird quarter of 2016 and 2015 were benefited primarily by the non-taxability of certain income items. The tax rate for the secondthird quarter of 2016 was higher compared to the same period in 2015 due to a decrease in the proportion of nontaxable items relativeinvestments in tax credit projects related to pretax income for that period.alternative energy and research and development initiatives. On a year-to-date basis, the 2016 tax rate of 33.2%33.4% was lowerhigher than the 2015 tax rate of 34.8%32.0%. The year-to-date tax rates for 2016 and 2015 were similarly impacted by the above-discussed permanent items. However, the 2016 effective tax rate was further benefited by the release of various state uncertain tax positions.


ZIONS BANCORPORATION AND SUBSIDIARIES

Net deferred tax assets were approximately $164$170 million at JuneSeptember 30, 2016 and $203 million at December 31, 2015.2015, which included a $4 million valuation allowance at each respective reporting date for certain acquired net operating loss carryforwards included in our acquisition of the remaining interests in a less significant subsidiary. We evaluate deferred tax assets on a regular basis to determine whether an additional valuation allowance is required. Based on this evaluation, and considering the weight of the positive evidence compared to the negative evidence, we have concluded that an additional valuation allowance is not required as of JuneSeptember 30, 2016.

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10.FAIR VALUE
Fair Value Measurement
Fair value is defined as the exchange price that would be received for an asset or paid to transfer a liability (an exit price) in the principal or most advantageous market for the asset or liability in an orderly transaction between market participants on the measurement date. To measure fair value, a hierarchy has been established that requires an entity to maximize the use of observable inputs and minimize the use of unobservable inputs. This hierarchy uses three levels of inputs to measure the fair value of assets and liabilities as follows:
Level 1 – Quoted prices in active markets for identical assets or liabilities in active markets that the Company has the ability to access;
Level 2 – Observable inputs other than Level 1 including quoted prices for similar assets or liabilities in active markets, quoted prices for identical or similar assets or liabilities in less active markets, observable inputs other than quoted prices that are used in the valuation of an asset or liability, and inputs that are derived principally from or corroborated by observable market data by correlation or other means; and
Level 3 – Unobservable inputs supported by little or no market activity for financial instruments whose value is determined by pricing models, discounted cash flow methodologies, or similar techniques, as well as instruments for which the determination of fair value requires significant management judgment or estimation.
The level in the fair value hierarchy within which the fair value measurement is classified is determined based on the lowest level input that is significant to the fair value measure in its entirety. Market activity is presumed to be orderly in the absence of evidence of forced or disorderly sales, although such sales may still be indicative of fair value. Applicable accounting guidance precludes the use of blockage factors or liquidity adjustments due to the quantity of securities held by an entity.
We use fair value to measure certain assets and liabilities on a recurring basis when fair value is the primary measure for accounting. Fair value is used on a nonrecurring basis to measure certain assets when adjusting carrying values, such as the application of lower of cost or fair value accounting, including recognition of impairment on assets. Fair value is also used when providing required disclosures for certain financial instruments.
Fair Value Policies and Procedures
We have various policies, processes and controls in place to ensure that fair values are reasonably developed, reviewed and approved for use. These include a Securities Valuation Committee (“SVC”) comprised of executive management appointed by the Board of Directors. The SVC reviews and approves on a quarterly basis the key components of fair value estimation, including critical valuation assumptions for Level 3 modeling. A Model Risk Management Group conducts model validations, including internal models, and sets policies and procedures for revalidation, including the timing of revalidation.
Third Party Service Providers
We use a third party pricing service to measure fair value measurements for approximately 89%88% of our AFS Level 2 securities. Fair value measurements for other AFS Level 2 securities generally use certain inputs corroborated by market data and include standard form discounted cash flow modeling.analysis.
For Level 2 securities, the third party pricing service provides documentation on an ongoing basis that presents market corroborative data, including detail pricing information and market reference data. The documentation includes benchmark yields, reported trades, broker-dealer quotes, issuer spreads, two-sided markets, benchmark securities, bids, offers, and reference data, including information from the vendor trading platform. We review, test

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and validate this information as appropriate. Absent observable trade data, we do not adjust prices from our third party sources.
The following describes the hierarchy designations, valuation methodologies, and key inputs to measure fair value on a recurring basis for designated financial instruments:

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Available-for-Sale
U.S. Treasury, Agencies and Corporations
U.S. Treasury securities are measured under Level 1 using quoted market prices when available. U.S. agencies and corporations are measured under Level 2 generally using the previously discussed third party pricing service.
Municipal Securities
Municipal securities are measured under Level 2 generally using the third party pricing service or an internal model. Valuation inputs include Baa municipal curves, as well as FHLB and LIBOR swap curves. Our valuation methodology for non-rated municipal securities changed at year-end to utilize more observable inputs, primarily municipal market yield curves, compared to our previous valuation method. The resulting values were determined to be Level 2.
Money Market Mutual Funds and Other
Money market mutual funds and other securities are measured under Level 1 or Level 2. For Level 1, quoted market prices are used which may include NAVs or their equivalents. Level 2 valuations generally use quoted prices for similar securities.
Trading Account
Securities in the trading account are generally measured under Level 2 using third party pricing service providers as described previously.
Bank-Owned Life Insurance
Bank-owned life insurance (“BOLI”) is measured under Level 2 according to cash surrender values (“CSVs”) of the insurance policies that are provided by a third party service. Nearly all policies are general account policies with CSVs based on the Company’s claims on the assets of the insurance companies. The insurance companies’ investments include predominantly fixed income securities consisting of investment-grade corporate bonds and various types of mortgage instruments. Management regularly reviews its BOLI investment performance, including concentrations among insurance providers.
Private Equity Investments
Private equity investments are measured under Level 3. The Equity Investments Committee, consisting of executives familiar with the investments, reviews periodic financial information, including audited financial statements when available. Certain analytics may be employed that include current and projected financial performance, recent financing activities, economic and market conditions, market comparables, market liquidity, sales restrictions, and other factors. The amount of unfunded commitments to invest is disclosed in Note 11. Certain restrictions apply for the redemption of these investments and certain investments are prohibited by the Volcker Rule. See discussions in Notes 5 and 11.
Agriculture Loan Servicing
This asset results from our servicing of agriculture loans approved and funded by Federal Agricultural Mortgage Corporation (“FAMC”). We provide this servicing under an agreement with FAMC for loans they own. The asset’s fair value represents our projection of the present value of future cash flows measured under Level 3 using discounted cash flow methodologies.

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Interest-Only Strips
Interest-only strips are created as a by-product of the securitization process. When the guaranteed portions of SBA 7(a) loans are pooled, interest-only strips may be created in the pooling process. The asset’s fair value represents our projection of the present value of future cash flows measured under Level 3 using discounted cash flow methodologies.

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Deferred Compensation Plan Assets and Obligations
Invested assets in the deferred compensation plan consist of shares of registered investment companies. These mutual funds are valued under Level 1 at quoted market prices, which represents the NAV of shares held by the plan at the end of the period.
Derivatives
Derivatives are measured according to their classification as either exchange-traded or over-the-counter (“OTC”). Exchange-traded derivatives consist of foreign currency exchange contracts measured under Level 1 because they are traded in active markets. OTC derivatives, including those for customers, consist of interest rate swaps and options. These derivatives are measured under Level 2 using third party services. Observable market inputs include yield curves (the LIBOR swap curve and relevant overnight index swap curves), foreign exchange rates, commodity prices, option volatilities, counterparty credit risk, and other related data. Credit valuation adjustments are required to reflect nonperformance risk for both the Company and the respective counterparty. These adjustments are determined generally by applying a credit spread to the total expected exposure of the derivative.
Securities Sold, Not Yet Purchased
Securities sold, not yet purchased, included in “Federal funds and other short-term borrowings” on the balance sheet, are measured under Level 1 using quoted market prices. If not available, quoted prices under Level 2 for similar securities are used.

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Quantitative Disclosure of Fair Value Measurements
Assets and liabilities measured at fair value by class on a recurring basis are summarized as follows:
(In thousands)June 30, 2016September 30, 2016
Level 1 Level 2 Level 3 TotalLevel 1 Level 2 Level 3 Total
ASSETS              
Investment securities:              
Available-for-sale:              
U.S. Treasury, agencies and corporations$
 $8,695,993
 $
 $8,695,993
$
 $9,517,153
 $
 $9,517,153
Municipal securities  673,267
 

 673,267
  778,245
 

 778,245
Other debt securities  21,556
   21,556
  22,969
   22,969
Money market mutual funds and other85,545
 728
   86,273
38,982
 734
   39,716
85,545
 9,391,544
 
 9,477,089
38,982
 10,319,101
 
 10,358,083
Trading account  118,775
   118,775
  108,004
   108,004
Other noninterest-bearing investments:              
Bank-owned life insurance  491,725
   491,725
  494,181
   494,181
Private equity investments  

 122,257
 122,257
  

 131,459
 131,459
Other assets:              
Agriculture loan servicing and interest-only strips
 

 18,228
 18,228

 

 19,928
 19,928
Deferred compensation plan assets83,706
 

 

 83,706
85,977
 

 

 85,977
Derivatives:              
Interest rate swaps and forwards  29,751
   29,751
  22,470
   22,470
Interest rate swaps for customers  104,996
   104,996
  95,424
   95,424
Foreign currency exchange contracts17,719
     17,719
11,171
     11,171
17,719
 134,747
 
 152,466
11,171
 117,894
 
 129,065
$186,970
 $10,136,791
 $140,485
 $10,464,246
$136,130
 $11,039,180
 $151,387
 $11,326,697
LIABILITIES              
Securities sold, not yet purchased$1,609
 $
 $
 $1,609
$56,635
 $
 $
 $56,635
Other liabilities:              
Deferred compensation plan obligations83,706
 
 
 83,706
85,977
 
 
 85,977
Derivatives:              
Interest rate swaps and forwards  406
   406
  230
   230
Interest rate swaps for customers  111,994
   111,994
  102,605
   102,605
Foreign currency exchange contracts15,357
     15,357
9,094
     9,094
15,357
 112,400
 
 127,757
9,094
 102,835
 
 111,929
$100,672
 $112,400
 $
 $213,072
$151,706
 $102,835
 $
 $254,541

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(In thousands)December 31, 2015
Level 1 Level 2 Level 3 Total
ASSETS       
Investment securities:       
Available-for-sale:       
U.S. Treasury, agencies and corporations$
 $7,100,844
 $
 $7,100,844
Municipal securities  418,695
 

 418,695
Other debt securities  22,941
 

 22,941
Money market mutual funds and other61,807
 38,829
   100,636
 61,807
 7,581,309
 
 7,643,116
Trading account  48,168
   48,168
Other noninterest-bearing investments:       
Bank-owned life insurance  485,978
   485,978
Private equity investments  

 120,027
 120,027
Other assets:       
Agriculture loan servicing and interest-only strips
 

 13,514
 13,514
Deferred compensation plan assets84,570
 

 

 84,570
Derivatives:       
Interest rate swaps and forwards  5,966
   5,966
Interest rate swaps for customers  51,353
   51,353
Foreign currency exchange contracts20,824
     20,824
 20,824
 57,319
 
 78,143
 $167,201
 $8,172,774
 $133,541
 $8,473,516
LIABILITIES       
Securities sold, not yet purchased$30,158
 $
 $
 $30,158
Other liabilities:       
Deferred compensation plan obligations84,570
 
 
 84,570
Derivatives:       
Interest rate swaps and forwards  835
   835
Interest rate swaps for customers  53,843
   53,843
Foreign currency exchange contracts17,761
     17,761
 17,761
 54,678
 
 72,439
 $132,489
 $54,678
 $
 $187,167

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Reconciliation of Level 3 Fair Value Measurements
The following reconciles the beginning and ending balances of assets and liabilities that are measured at fair value by class on a recurring basis using Level 3 inputs:
 Level 3 Instruments
 Three Months Ended June 30, 2016
(In thousands)
Municipal
securities

Trust 
preferred – banks and insurance

Other
Private
equity
investments

Ag loan svcg and int-only strips
Derivatives
and other
liabilities

           
Balance at March 31, 2016$
 $
 $
 $119,222
 $17,067
 $
Net gains (losses) included in:           
Statement of income:           
Dividends and other investment income      130
    
Equity securities gains, net      2,555
    
Other noninterest income        1,531
  
Purchases      4,515
 
  
Sales
 
 
 (3,378)    
Redemptions and paydowns

 

 

 (787) (370) 
Balance at June 30, 2016$
 $
 $
 $122,257
 $18,228
 $
 Level 3 Instruments
 Six Months Ended June 30, 2016
(In thousands)
Municipal
securities
 
Trust 
preferred – banks and insurance
 Other 
Private
equity
investments
 Ag loan svcg and int-only strips 
Derivatives
and other
liabilities
            
Balance at December 31, 2015$
 $
 $
 $120,027
 $13,514
 $
Net gains (losses) included in:           
Statement of income:           
Dividends and other investment losses      (1,354)    
Equity securities gains, net      546
    
Other noninterest income        4,991
  
Purchases      7,316
 368
  
Sales      (3,414)    
Redemptions and paydowns      (864) (645)  
Balance at June 30, 2016$
 $
 $
 $122,257
 $18,228
 $

 Level 3 Instruments
 Three Months Ended September 30, 2016
(In thousands)
Municipal
securities

Trust 
preferred – banks and insurance

Other
Private
equity
investments

Ag loan svcg and int-only strips
Derivatives
and other
liabilities

           
Balance at June 30, 2016$
 $
 $
 $122,257
 $18,228
 $
Net gains (losses) included in:           
Statement of income:          ��
Dividends and other investment income      2,601
    
Equity securities gains, net      8,363
    
Other noninterest income        2,035
  
Purchases      3,015
 
  
Sales
 
 
 (65)    
Redemptions and paydowns

 

 

 (4,712) (335) 
Balance at September 30, 2016$
 $
 $
 $131,459
 $19,928
 $
 Level 3 Instruments
 Nine Months Ended September 30, 2016
(In thousands)
Municipal
securities
 
Trust 
preferred – banks and insurance
 Other 
Private
equity
investments
 Ag loan svcg and int-only strips 
Derivatives
and other
liabilities
            
Balance at December 31, 2015$
 $
 $
 $120,027
 $13,514
 $
Net gains (losses) included in:           
Statement of income:           
Dividends and other investment income      1,247
    
Equity securities gains, net      8,909
    
Other noninterest income        7,026
  
Purchases      10,331
 368
  
Sales      (3,479)    
Redemptions and paydowns      (5,576) (980)  
Balance at September 30, 2016$
 $
 $
 $131,459
 $19,928
 $
 Level 3 Instruments
 Three Months Ended September 30, 2015
(In thousands)
Municipal
securities

Trust 
preferred – banks and insurance

Other
Private
equity
investments

Ag loan svcg and int-only strips
Derivatives
and other
liabilities

           
Balance at June 30, 2015$
 $
 $
 $110,115
 $13,502
 $
Net gains (losses) included in:           
Statement of income:           
Dividends and other investment losses      (620)    
Equity securities gains, net      3,587
    
Other noninterest income        (375)  
Purchases      8,184
 234
  
Sales

 
 
 (126)    
Redemptions and paydowns

 

 

 (945) (200) 

Balance at September 30, 2015$
 $
 $
 $120,195
 $13,161
 $

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ZIONS BANCORPORATION AND SUBSIDIARIES

 Level 3 Instruments
 Three Months Ended June 30, 2015
(In thousands)
Municipal
securities

Trust 
preferred – banks and insurance

Other
Private
equity
investments

Ag loan svcg and int-only strips
Derivatives
and other
liabilities

           
Balance at March 31, 2015$2,465
 $438,338
 $4,803
 $105,232
 $12,001
 $
Net gains (losses) included in:           
Statement of income:           
Accretion of purchase discount on securities available-for-sale1
 214
 

      
Dividends and other investment losses      (1,633)    
Equity securities gains, net      714
    
Fixed income securities losses, net(375) (136,368) (606)      
Other noninterest income        1,483
  
Other comprehensive income (loss)560
 148,496
 (116)      
Purchases      7,262
 210
  
Sales(2,651) (437,442) (4,081) (991)    
Redemptions and paydowns

 (13,238) 

 (469) (192) 

Balance at June 30, 2015$
 $
 $
 $110,115
 $13,502
 $
 Level 3 Instruments
 Six Months Ended June 30, 2015
(In thousands)
Municipal
securities
 
Trust 
preferred – banks and insurance
 Other 
Private
equity
investments
 Ag loan svcg and int-only strips 
Derivatives
and other
liabilities
            
Balance at December 31, 2014$4,164
 $393,007
 $4,761
 $97,649
 $12,227
 $(13)
Net gains (losses) included in:           
Statement of income:           
Accretion of purchase discount on securities available-for-sale3
 471
        
Dividends and other investment losses      (559)    
Equity securities gains, net      3,967
    
Fixed income securities losses, net(344) (136,691) (606)      
Other noninterest income        1,487
  
Other noninterest expense          13
Other comprehensive income (loss)687
 141,547
 (74)      
Fair value of HTM securities reclassified as AFS  57,308
        
Purchases      12,314
 381
  
Sales(2,651) (440,055) (4,081) (2,508)    
Redemptions and paydowns(1,859) (15,587)   (748) (593)  
Balance at June 30, 2015$
 $
 $
 $110,115
 $13,502
 $
 Level 3 Instruments
 Nine Months Ended September 30, 2015
(In thousands)
Municipal
securities
 
Trust 
preferred – banks and insurance
 Other 
Private
equity
investments
 Ag loan svcg and int-only strips 
Derivatives
and other
liabilities
            
Balance at December 31, 2014$4,164
 $393,007
 $4,761
 $97,649
 $12,227
 $(13)
Net gains (losses) included in:           
Statement of income:           
Accretion of purchase discount on AFS securities3
 471
        
Dividends and other investment losses      (1,179)    
Equity securities gains, net      7,554
    
Fixed income securities losses, net(344) (136,691) (606)      
Other noninterest income        1,112
  
Other noninterest expense          13
OCI (loss)687
 141,547
 (74)      
Fair value of HTM securities reclassified as AFS  57,308
        
Purchases      20,498
 615
  
Sales(2,651) (440,055) (4,081) (2,634)    
Redemptions and paydowns(1,859) (15,587)   (1,693) (793)  
Balance at September 30, 2015$
 $
 $
 $120,195
 $13,161
 $
No transfers of assets or liabilities occurred among Levels 1, 2 or 3 for the three and sixnine months ended Juneended September 30, 2016 and 2015.
The preceding reconciling amounts using Level 3 inputs include the following realized amounts in the statement of income:
(In thousands)Three Months Ended
June 30,
 Six Months Ended
June 30,
 
2016 2015 2016 2015
        
Dividends and other investment income$
 $4
 $
 $4
Fixed income securities losses, net
 (137,349) 
 (137,641)
Equity securities gains (losses), net93
 (674) 93
 (674)

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ZIONS BANCORPORATION AND SUBSIDIARIES

(In thousands)Three Months Ended
September 30,
 Nine Months Ended
September 30,
 
2016 2015 2016 2015
        
Dividends and other investment income$
 $(6) $
 $(2)
Fixed income securities losses, net
 
 
 (137,641)
Equity securities gains (losses), net3,505
 (10,637) 3,598
 (11,311)
Nonrecurring Fair Value Measurements
Included in the balance sheet amounts are the following amounts of assets that had fair value changes during the year-to-date period measured on a nonrecurring basis.
(In thousands)Fair value at June 30, 2016 Fair value at December 31, 2015Fair value at September 30, 2016 Fair value at December 31, 2015
Level 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 TotalLevel 1 Level 2 Level 3 Total Level 1 Level 2 Level 3 Total
ASSETS                              
Private equity investments, carried at cost$
 $
 $1,477
 $1,477
 $
 $
 $10,707
 $10,707
$
 $
 $1,326
 $1,326
 $
 $
 $10,707
 $10,707
Impaired loans
 51,033
 
 51,033
 
 10,991
 
 10,991

 50,873
 
 50,873
 
 10,991
 
 10,991
Other real estate owned
 3,660
 
 3,660
 
 2,388
 
 2,388

 2,501
 
 2,501
 
 2,388
 
 2,388
$
 $54,693
 $1,477
 $56,170
 $
 $13,379
 $10,707
 $24,086
$
 $53,374
 $1,326
 $54,700
 $
 $13,379
 $10,707
 $24,086

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The previous fair values may not be current as of the dates indicated, but rather as of the date the fair value change occurred, such as a charge for impairment. Accordingly, carrying values may not equal current fair value.
Gains (losses) from fair value changesGains (losses) from fair value changes
(In thousands)

Three Months Ended
June 30,
 Six Months Ended
June 30,
Three Months Ended
September 30,
 Nine Months Ended
September 30,
2016 2015 2016 20152016 2015 2016 2015
ASSETS              
Private equity investments, carried at cost$
 $(1,125) $(342) $(2,278)$(151) $(625) $(493) $(2,903)
Impaired loans(14,796) (2,808) (29,487) (5,357)(5,297) (7,666) (34,267) (12,682)
Other real estate owned(563) (310) (600) (1,318)(603) (565) (1,203) (1,883)
$(15,359) $(4,243) $(30,429) $(8,953)$(6,051) $(8,856) $(35,963) $(17,468)
During the three and sixnine months ended Juneended September 30, we recognized net gains of $1.0$0.4 million and $2.93.2 million in 2016 and $1.1$0.8 million and $1.92.7 million in 2015 from the sale of other real estate owned (“OREO”) properties that had a carrying value at the time of sale of approximately $4.7$8.4 million and $10.1$13.1 million during the sixnine months ended JuneSeptember 30, 2016 and 2015, respectively. Previous to their sale in these periods, we recognized impairment on these properties of an insignificant amount in 2016 and 2015.
Private equity investments carried at cost were measured at fair value for impairment purposes according to the methodology previously discussed for these investments. Amounts of PEIs carried at cost were $17.9$15.1 million at JuneSeptember 30, 2016 and $25.3 million at December 31, 2015. Amounts of other noninterest-bearing investments carried at cost were $191.2$221.3 million at JuneSeptember 30, 2016 and $191.5 million at December 31, 2015, which were comprised of Federal Reserve and FHLB stock.
Impaired (or nonperforming) loans that are collateral-dependent were measured at fair value based on the fair value of the collateral. OREO was measured initially at fair value based on propertycollateral appraisals at the time of transfer and subsequently at the lower of cost or fair value.
Measurement of fair value for collateral-dependent loans and OREO was based on third party appraisals that utilize one or more valuation techniques (income, market and/or cost approaches). Any adjustments to calculated fair value were made based on recently completed and validated third party appraisals, third party appraisal services, automated valuation services, or our informed judgment. Evaluations were made to determine that the appraisal process met the relevant concepts and requirements of applicable accounting guidance.
Automated valuation services may be used primarily for residential properties when values from any of the previous methods were not available within 90 days of the balance sheet date. These services use models based on market, economic, and demographic values. The use of these models has only occurred in a very few instances and the related property valuations have not been sufficiently significant to consider disclosure under Level 3 rather than Level 2.

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Impaired loans that are not collateral-dependent were measured based on the present value of future cash flows discounted at the expected coupon rates over the lives of the loans. Because the loans were not discounted at market interest rates, the valuations do not represent fair value and have been excluded from the nonrecurring fair value balance in the preceding schedules.

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Fair Value of Certain Financial Instruments
Following is a summary of the carrying values and estimated fair values of certain financial instruments:
June 30, 2016 December 31, 2015September 30, 2016 December 31, 2015
(In thousands)
Carrying
value
 
Estimated
fair value
 Level 
Carrying
value
 
Estimated
fair value
 Level
Carrying
value
 
Estimated
fair value
 Level 
Carrying
value
 
Estimated
fair value
 Level
Financial assets:                
HTM investment securities$713,392
 $720,991
 2 $545,648
 $552,088
 2$715,279
 $717,822
 2 $545,648
 $552,088
 2
Loans and leases (including loans held for sale), net of allowance42,039,742
 42,184,148
 3 40,193,374
 39,535,365
 342,102,822
 42,100,277
 3 40,193,374
 39,535,365
 3
Financial liabilities:                
Time deposits2,336,088
 2,343,427
 2 2,130,680
 2,129,742
 22,516,493
 2,517,487
 2 2,130,680
 2,129,742
 2
Foreign deposits117,708
 117,690
 2 294,391
 294,321
 2118,762
 118,772
 2 294,391
 294,321
 2
Long-term debt698,712
 738,760
 2 812,366
 838,796
 2570,385
 602,624
 2 812,366
 838,796
 2
This summary excludes financial assets and liabilities for which carrying value approximates fair value and financial instruments that are recorded at fair value on a recurring basis. Financial instruments for which carrying values approximate fair value include cash and due from banks, money market investments, demand, savings and money market deposits, federal funds purchased and other short-term borrowings, and security repurchase agreements. The estimated fair value of demand, savings and money market deposits is the amount payable on demand at the reporting date. Carrying value is used because the accounts have no stated maturity and the customer has the ability to withdraw funds immediately.
HTM investment securities primarily consist of municipal securities. They were measured at fair value according to the methodology previously discussed.
Loans are measured at fair value according to their status as nonimpaired or impaired. For nonimpaired loans, fair value is estimated by discounting future cash flows using the LIBOR yield curve adjusted by a factor which reflects the credit and interest rate risk inherent in the loan. These future cash flows are then reduced by the estimated “life-of-the-loan” aggregate credit losses in the loan portfolio. These adjustments for lifetime future credit losses are derived from the methods used to estimate the ALLL for our loan portfolio and are adjusted quarterly as necessary to reflect the most recent loss experience. Impaired loans that are collateral-dependent are already considered to be held at fair value. Impaired loans that are not collateral-dependent have future cash flows reduced by the estimated “life-of-the-loan” credit loss derived from methods used to estimate the ALLL for these loans. See Impaired Loans in Note 6 for details on the impairment measurement method for impaired loans. Loans, other than those held for sale, are not normally purchased and sold by the Company, and there are no active trading markets for most of this portfolio.
Time and foreign deposits, and any other short-term borrowings, are measured at fair value by discounting future cash flows using the LIBOR yield curve to the given maturity dates.
Long-term debt is measured at fair value based on actual market trades (i.e., an asset value) when available, or discounting cash flows to maturity using the LIBOR yield curve adjusted for credit spreads.
These fair value disclosures represent our best estimates based on relevant market information and information about the financial instruments. Fair value estimates are based on judgments regarding current economic conditions, future expected loss experience, risk characteristics of the various instruments, and other factors. These estimates are subjective in nature, involve uncertainties and matters of significant judgment, and cannot be determined with precision. Changes in these methodologies and assumptions could significantly affect the estimates.

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11.COMMITMENTS, GUARANTEES AND CONTINGENT LIABILITIES
Commitments and Guarantees
Contractual amounts of off-balance sheet financial instruments used to meet the financing needs of our customers are as follows:
(In thousands)June 30,
2016
 December 31,
2015
September 30,
2016
 December 31,
2015
      
Net unfunded commitments to extend credit 1
$17,524,020
 $17,169,785
$18,113,233
 $17,169,785
Standby letters of credit:      
Financial771,167
 661,554
798,476
 661,554
Performance204,922
 216,843
194,592
 216,843
Commercial letters of credit46,254
 18,447
38,964
 18,447
Total unfunded lending commitments$18,546,363
 $18,066,629
$19,145,265
 $18,066,629
1 
Net of participations
The Company’s 2015 Annual Report on Form 10-K contains further information about these commitments and guarantees including their terms and collateral requirements. At JuneSeptember 30, 2016, the Company had recorded approximately $4.7$5.0 million as a liability for the guarantees associated with the standby letters of credit, which consisted of $1.9$1.5 million attributable to the RULC and $2.8$3.5 million of deferred commitment fees.
At JuneAs of September 30, 2016,, the Parent has guaranteed $165$36 million of debt of affiliated trusts issuing trust preferred securities.securities, which was subsequently redeemed in the fourth quarter of 2016. See related information on the redemption of these trusts in Note 8.
At JuneSeptember 30, 2016, we had unfunded commitments for PEIs of approximately $20$18 million. These obligations have no stated maturity. Certain PEIs related to these commitments are prohibited by the Volcker Rule. See related discussions about these investments in Notes 5 and 10.
Legal Matters
We are subject to litigation in court and arbitral proceedings, as well as proceedings, investigations, examinations and other actions brought or considered by governmental and self-regulatory agencies. Litigation may relate to lending, deposit and other customer relationships, vendor and contractual issues, employee matters, intellectual property matters, personal injuries and torts, regulatory and legal compliance, and other matters. While most matters relate to individual claims, we are also subject to putative class action claims and similar broader claims. Proceedings, investigations, examinations and other actions brought or considered by governmental and self-regulatory agencies may relate to our banking, investment advisory, trust, securities, and other products and services; our customers’ involvement in money laundering, fraud, securities violations and other illicit activities or our policies and practices relating to such customer activities; and our compliance with the broad range of banking, securities and other laws and regulations applicable to us. At any given time, we may be in the process of responding to subpoenas, requests for documents, data and testimony relating to such matters and engaging in discussions to resolve the matters.
As of JuneSeptember 30, 2016, we were subject to the following material litigation and governmental inquiries:
a class action case, Reyes v. Zions First National Bank, et. al., which was brought in the United States District Court for the Eastern District of Pennsylvania in early 2010. This case relates to payment processing services provided by Modern Payments, a small subsidiary of Zions, to ten of its customers that allegedly engaged in wrongful telemarketing practices. The plaintiff has been seeking a trebled monetary award under the federal RICO Act. During the second quarter of 2016, the parties reached an agreement in principle to settle the case for $37.50 million to $37.75 million, (with the amount within that range dependent upon the outcome of certain contingencies). A definitive settlement agreement on those terms was executed by the parties and preliminarily approved by the District Court in July 2016. The settlement agreement is subject to further court process and final approval by the District Court. These further steps are likely to take place overbe finalized during the remainderfourth quarter of 2016. There can be no assurance that the settlement agreement will ultimately be approved by the District

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District Court or become effective. As of December 31, 2015, we hadWe have fully reserved for our obligations with respect to the settlement, so the settlement did not cause us to incur additional settlement expenses in the second quarter.settlement. A portion of the settlement amount is covered by our insurance policies and will behas been funded by our insurers.
a governmental inquiry into our payment processing practices relating primarily to the allegedly fraudulent telemarketers at issue in the Reyes case, discussed above, (conductedconducted by the Department of Justice).Justice. Our first contact with the Department of Justice relating to this matter occurred in early 2013. We understand thatcommenced substantive settlement discussion with the Department of Justice desires to pursue claims against us. We have engaged in preliminary settlement discussions with the Departmentthird quarter of Justice.2016. There can be no assurance, however, that the parties will be able to settle this matter.
a governmental inquiry into possible money laundering activities of one of our bank customers and our anti-money laundering practices relating to that customer, (conductedconducted by the United States Attorney’s Office for the Southern District of New York).York. Our first contact with the United States Attorney’s Office relating to this matter occurred in early 2012. We are unclear about the status of this inquiry.
a civil suit, Liu Aifang, et al. v. Velocity VIII, et al., (“Aifang”) brought against us in the United States District Court for the Central District of California in April 2015. The case relates to our banking relationships with customers who were approved promoters of an EB-5 Visa Immigrant Investment Program that allegedly misappropriated investors’ funds. On September 30, 2015, the Court granted in part and denied in part our motion to dismiss plaintiffs’ claims.  The plaintiffs’ remaining claims assert negligence, conversion and that the bank aided and abetted the promoter customers’ conversion of the investors’ funds deposited with us. Fact discovery has been completed and trial is scheduled for mid-September 2016. In early August 2016 we entered into a settlement agreement with the plaintiffs. The settlement is subject to additional court process and there can be no assurance that it will ultimately become effective. We do not believe the settlement will have a material effect on our financial results.
a civil suit, Shou-En Wang v. CB&T (“Wang”), brought against us in Superior Court for Los Angeles County, Central District in April 2016. The case relates to our depositor relationships with customers who were promoters of an investment program that allegedly misappropriated investors’ funds. This recently filed case makesis in an early phase, with initial motion practice having commenced.
In the third quarter of 2016 we resolved a civil suit, Liu Aifang, et al. v. Velocity VIII, et al. (“Aifang”), brought against us in the United States District of California in April 2015. This case made similar allegations to those in the AifangWang case, but iswas brought by otherdifferent plaintiffs.
At least quarterly, we review outstanding and new legal matters, utilizing then available information. In accordance with applicable accounting guidance, if we determine that a loss from a matter is probable and the amount of the loss can be reasonably estimated, we establish an accrual for the loss. In the absence of such a determination, no accrual is made. Once established, accruals are adjusted to reflect developments relating to the matters.
In our review, we also assess whether we can determine the range of reasonably possible losses for significant matters in which we are unable to determine that the likelihood of a loss is remote. Because of the difficulty of predicting the outcome of legal matters, discussed subsequently, we are able to meaningfully estimate such a range only for a limited number of matters. Based on information available as of JuneSeptember 30, 2016, we estimated that the aggregate range of reasonably possible losses for those matters to be from $0 million to roughly $20$10 million in excess of amounts accrued. The matters underlying the estimated range will change from time to time, and actual results may vary significantly from this estimate. Those matters for which a meaningful estimate is not possible are not included within this estimated range and, therefore, this estimated range does not represent our maximum loss exposure.
Based on our current knowledge, we believe that our current estimated liability for litigation and other legal actions and claims, reflected in our accruals and determined in accordance with applicable accounting guidance, is adequate and that liabilities in excess of the amounts currently accrued, if any, arising from litigation and other legal actions and claims for which an estimate as previously described is possible, will not have a material impact on our financial condition, results of operations, or cash flows. However, in light of the significant uncertainties involved in these matters, and the very large or indeterminate damages sought in some of these matters, an adverse outcome in one or more of these matters could be material to our financial condition, results of operations, or cash flows for any given reporting period.

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Any estimate or determination relating to the future resolution of litigation, arbitration, governmental or self-regulatory examinations, investigations or actions or similar matters is inherently uncertain and involves significant judgment. This is particularly true in the early stages of a legal matter, when legal issues and facts have not been well articulated, reviewed, analyzed, and vetted through discovery, preparation for trial or hearings, substantive and productive mediation or settlement discussions, or other actions. It is also particularly true with respect to class action and similar claims involving multiple defendants, matters with complex procedural requirements or substantive issues or novel legal theories, and examinations, investigations and other actions conducted or brought by governmental and self-regulatory agencies, in which the normal adjudicative process is not applicable. Accordingly, we usually are unable to determine whether a favorable or unfavorable outcome is remote, reasonably

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likely, or probable, or to estimate the amount or range of a probable or reasonably likely loss, until relatively late in the course of a legal matter, sometimes not until a number of years have elapsed. Accordingly, our judgments and estimates relating to claims will change from time to time in light of developments and actual outcomes will differ from our estimates. These differences may be material.
12.RETIREMENT PLANS
The following discloses the net periodic benefit cost (credit) and its components for the Company’s pension and postretirement plans:
 Pension benefits 
Supplemental
retirement
benefits
 
Postretirement
benefits
 Pension benefits 
Supplemental
retirement
benefits
 
Postretirement
benefits
Pension benefits 
Supplemental
retirement
benefits
 
Postretirement
benefits
 Pension benefits 
Supplemental
retirement
benefits
 
Postretirement
benefits
(In thousands) Three Months Ended June 30, Six Months Ended June 30,Three Months Ended September 30, Nine Months Ended September 30,
2016 2015 2016 2015 2016 2015 2016 2015 2016 2015 2016 20152016 2015 2016 2015 2016 2015 2016 2015 2016 2015 2016 2015
                                               
Service cost $

$
 $
 $
 $5
 $8
 $
 $
 $
 $
 $10
 $16
$

$
 $
 $
 $5
 $8
 $
 $
 $
 $
 $15
 $25
Interest cost 1,762

1,783
 101

101
 10
 10
 3,525
 3,566
 201
 201
 19
 20
1,721

1,755
 101

101
 10
 10
 5,246
 5,320
 302
 302
 29
 30
Expected return on plan assets (2,754)
(3,090) 
 
 
 
 (5,509) (6,180) 
 
 
 
(3,039)
(3,090) 
 
 
 
 (8,548) (9,270) 
 
 
 
Partial settlement loss2,625
 
 
 
 
 
 2,625
 
 
 
 
 
Amortization of net actuarial (gain) loss 1,659

1,574
 29

31
 (17) (13) 3,319
 3,147
 59
 62
 (33) (26)1,293

1,297
 29

31
 (17) (13) 4,612
 4,445
 87
 92
 (50) (40)
Net periodic benefit cost (credit) $667
 $267
 $130
 $132
 $(2) $5
 $1,335
 $533
 $260
 $263
 $(4) $10
$2,600
 $(38) $130
 $132
 $(2) $5
 $3,935
 $495
 $389
 $394
 $(6) $15
During the third quarter of 2016, we accrued a partial settlement loss of $2.6 million on our pension plan liability. Participants in the pension plan can elect lump sum distributions after retirement at their discretion. During the third quarter of 2016, the amount of expected lump sum distributions for all of 2016 exceeded the expected interest cost for the year, which triggered partial settlement accounting. As disclosed in the Company’sour 2015 Annual Report on Form 10-K, the Company has frozen its participation and benefit accruals for the pension plan and its contributions for individual benefit payments in the postretirement benefit plan.
13.OPERATING SEGMENT INFORMATION
We manage our operations and prepare management reports and other information with a primary focus on geographical area. Following the close of business on December 31, 2015, we completed the merger of our subsidiary banks and certain non-banking subsidiaries, including Zions Management Services Company (“ZMSC”), with and into a single bank, ZB, N.A. We continue to manage our banking operations under our existing brand names, including Zions Bank, Amegy Bank, California Bank & Trust, National Bank of Arizona, Nevada State Bank, Vectra Bank Colorado, and The Commerce Bank of Washington. Performance assessment and resource allocation are based upon this geographical structure. Due to the charter consolidation, we have moved to an internal funds transfer pricing allocation system to report results of operations for business segments. This process continues to be refined. Total average loans and deposits presented for the banking segments do not include intercompany amounts between banking segments, but may include deposits with the Other segment. Prior period amounts have been reclassified to reflect these changes.
As of JuneSeptember 30, 2016, Zions Bank operates 9998 branches in Utah, 24 branches in Idaho, and one branch in Wyoming. Amegy operates 7573 branches in Texas. CB&T operates 9493 branches in California. NBAZ operates 6558 branches in Arizona. NSB operates 49 branches in Nevada. Vectra operates 36 branches in Colorado and one branch in New Mexico. TCBW operates one branch in Washington and one branch in Oregon. Effective April 1, 2015, TCBO was merged into TCBW.

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The operating segment identified as “Other” includes the Parent, ZMSC, certain nonbank financial service subsidiaries, and eliminations of transactions between segments. The Parent’s operations are significant to the Other segment. The Company’s net interest income is substantially affected by the Parent’s interest expense on long-term

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debt. The condensed statement of income identifies the components of income and expense which affect the operating amounts presented in the Other segment.
The accounting policies of the individual operating segments are the same as those of the Company. Transactions between operating segments are primarily conducted at fair value, resulting in profits that are eliminated for reporting consolidated results of operations. Operating segments pay for centrally provided services based upon estimated or actual usage of those services.
The following schedule presents selected operating segment information for the three months ended JuneSeptember 30, 2016 and 2015:
(In millions)Zions Bank Amegy CB&T NBAZ NSBZions Bank Amegy CB&T NBAZ NSB
2016 2015 2016 2015 2016 2015 2016 2015 2016 2015
SELECTED INCOME STATEMENT DATASELECTED INCOME STATEMENT DATA              
Net interest income$159.1
 $153.2
 $119.4
 $119.8
 $114.1
 $103.9
 $49.9
 $45.8
 $31.9
 $30.9
Provision for loan losses(1.0) (5.7) 24.3
 31.8
 (2.3) 1.1
 0.2
 (2.5) (4.1) (3.7)
Net interest income after provision for loan losses160.1
 158.9
 95.1
 88.0
 116.4
 102.8
 49.7
 48.3
 36.0
 34.6
Noninterest income38.6
 33.6
 32.4
 30.6
 18.4
 16.3
 10.6
 9.5
 10.0
 9.3
Noninterest expense102.6
 108.3
 76.4
 88.9
 71.4
 70.2
 33.8
 36.1
 31.8
 32.8
Net Income (loss) before taxes$96.1
 $84.2
 $51.1
 $29.7
 $63.4
 $48.9
 $26.5
 $21.7
 $14.2
 $11.1
SELECTED AVERAGE BALANCE SHEET DATASELECTED AVERAGE BALANCE SHEET DATA              
Total loans$12,629
 $12,116
 $10,666
 $10,076
 $9,341
 $8,531
 $4,156
 $3,798
 $2,288
 $2,322
Total deposits15,960
 15,329
 11,068
 11,457
 10,929
 10,180
 4,632
 4,361
 4,223
 3,949
2016 2015 2016 2015 2016 2015 2016 2015 2016 2015Vectra TCBW Other 
Consolidated
Company
    
                   2016 2015 2016 2015 2016 2015 2016 2015    
SELECTED INCOME STATEMENT DATASELECTED INCOME STATEMENT DATA                SELECTED INCOME STATEMENT DATA              
Net interest income$158.8
 $154.1
 $122.0
 $115.5
 $114.0
 $107.1
 $48.3
 $45.5
 $30.6
 $31.3
$32.0
 $29.0
 $10.1
 $8.7
 $(47.3) $(65.9) $469.2
 $425.4
    
Provision for loan losses0.1
 (8.4) 30.7
 13.9
 4.1
 (3.5) 
 2.7
 0.8
 (3.0)1.7
 (1.6) 0.2
 (1.2) (0.2) 
 18.8
 18.2
    
Net interest income after provision for loan losses158.7
 162.5
 91.3
 101.6
 109.9
 110.6
 48.3
 42.8
 29.8
 34.3
30.3
 30.6
 9.9
 9.9
 (47.1) (65.9) 450.4
 407.2
    
Noninterest income36.7
 33.7
 28.1
 30.5
 16.4
 18.2
 10.0
 9.7
 9.7
 9.5
5.9
 5.7
 1.0
 1.0
 28.0
 19.9
 144.9
 125.9
    
Noninterest expense97.9
 109.3
 75.1
 93.3
 64.0
 79.0
 32.2
 37.1
 30.8
 34.1
23.6
 24.9
 4.5
 5.3
 59.2
 24.8
 403.3
 391.3
    
Net Income (loss) before taxes$97.5
 $86.9
 $44.3
 $38.8
 $62.3
 $49.8
 $26.1
 $15.4
 $8.7
 $9.7
$12.6
 $11.4
 $6.4
 $5.6
 $(78.3) $(70.8) $192.0
 $141.8
    
                   
SELECTED AVERAGE BALANCE SHEET DATASELECTED AVERAGE BALANCE SHEET DATA              SELECTED AVERAGE BALANCE SHEET DATA              
Total loans$12,600
 $12,091
 $10,761
 $10,159
 $9,260
 $8,472
 $4,008
 $3,846
 $2,274
 $2,357
$2,489
 $2,396
 $796
 $700
 $122
 $86
 $42,487
 $40,025
    
Total deposits15,977
 15,953
 10,959
 11,246
 10,882
 9,865
 4,582
 4,292
 4,103
 3,902
2,663
 2,832
 1,010
 906
 190
 (95) 50,675
 48,919
    
                   
Vectra TCBW Other 
Consolidated
Company
    
2016 2015 2016 2015 2016 2015 2016 2015    
                   
SELECTED INCOME STATEMENT DATA                
Net interest income$29.7
 $29.7
 $9.5
 $8.9
 $(48.1) $(68.4) $464.8
 $423.7
    
Provision for loan losses(2.7) (0.3) 1.4
 (0.8) 
 
 34.4
 0.6
    
Net interest income after provision for loan losses32.4
 30.0
 8.1
 9.7
 (48.1) (68.4) 430.4
 423.1
    
Noninterest income5.5
 5.3
 1.4
 1.0
 17.9
 (112.6) 125.7
 (4.7)    
Noninterest expense21.1
 24.4
 5.1
 (1.5) 55.7
 23.3
 381.9
 399.0
    
Net Income (loss) before taxes$16.8
 $10.9
 $4.4
 $12.2
 $(85.9) $(204.3) $174.2
 $19.4
    
                   
SELECTED AVERAGE BALANCE SHEET DATA              
Total loans$2,415
 $2,401
 $777
 $721
 $13
 $84
 $42,108
 $40,131
    
Total deposits2,667
 2,831
 947
 852
 (167) (816) 49,950
 48,125
    

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The following schedule presents selected operating segment information for the sixnine months ended JuneSeptember 30, 2016 and 2015:
(In millions)Zions Bank Amegy CB&T NBAZ NSBZions Bank Amegy CB&T NBAZ NSB
2016 2015 2016 2015 2016 2015 2016 2015 2016 2015
SELECTED INCOME STATEMENT DATASELECTED INCOME STATEMENT DATA              
Net interest income$469.3
 $460.4
 $359.4
 $352.6
 $334.6
 $314.6
 $144.7
 $135.4
 $93.1
 $93.0
Provision for loan losses(31.5) (18.8) 159.4
 56.9
 (1.3) (6.5) 2.0
 1.0
 (28.8) (15.4)
Net interest income after provision for loan losses500.8
 479.2
 200.0
 295.7
 335.9
 321.1
 142.7
 134.4
 121.9
 108.4
Noninterest income111.5
 98.3
 89.6
 90.3
 50.9
 48.6
 30.2
 27.3
 29.2
 27.6
Noninterest expense297.6
 325.3
 237.1
 275.2
 203.9
 223.2
 98.5
 110.4
 93.5
 99.2
Net Income (loss) before taxes$314.7
 $252.2
 $52.5
 $110.8
 $182.9
 $146.5
 $74.4
 $51.3
 $57.6
 $36.8
SELECTED AVERAGE BALANCE SHEET DATASELECTED AVERAGE BALANCE SHEET DATA              
Total loans$12,512
 $12,102
 $10,599
 $10,169
 $9,170
 $8,502
 $4,010
 $3,803
 $2,275
 $2,354
Total deposits15,879
 15,688
 11,100
 11,409
 10,764
 9,917
 4,553
 4,277
 4,113
 3,870
2016 2015 2016 2015 2016 2015 2016 2015 2016 2015Vectra TCBW Other 
Consolidated
Company
    
                   2016 2015 2016 2015 2016 2015 2016 2015    
SELECTED INCOME STATEMENT DATASELECTED INCOME STATEMENT DATA                SELECTED INCOME STATEMENT DATA              
Net interest income$313.4
 $307.1
 $240.1
 $232.8
 $220.5
 $210.7
 $94.8
 $89.6
 $61.2
 $62.2
$92.4
 $87.5
 $28.9
 $25.7
 $(135.5) $(202.8) $1,386.9
 $1,266.4
    
Provision for loan losses(30.5) (13.0) 135.2
 25.1
 1.0
 (7.6) 1.8
 3.4
 (24.7) (11.7)(4.3) 1.9
 (0.2) (1.8) 0.2
 
 95.5
 17.3
    
Net interest income after provision for loan losses343.9
 320.1
 104.9
 207.7
 219.5
 218.3
 93.0
 86.2
 85.9
 73.9
96.7
 85.6
 29.1
 27.5
 (135.7) (202.8) 1,291.4
 1,249.1
    
Noninterest income72.7
 64.7
 57.2
 59.7
 32.5
 32.3
 19.5
 17.9
 19.2
 18.3
17.2
 16.1
 3.3
 3.0
 55.5
 (72.6) 387.4
 238.6
    
Noninterest expense195.0
 216.9
 160.8
 186.3
 132.5
 153.0
 64.7
 74.2
 61.6
 66.5
66.2
 73.3
 14.6
 11.6
 169.4
 65.1
 1,180.8
 1,183.3
    
Net Income (loss) before taxes$221.6
 $167.9
 $1.3
 $81.1
 $119.5
 $97.6
 $47.8
 $29.9
 $43.5
 $25.7
$47.7
 $28.4
 $17.8
 $18.9
 $(249.6) $(340.5) $498.0
 $304.4
    
                   
SELECTED AVERAGE BALANCE SHEET DATASELECTED AVERAGE BALANCE SHEET DATA              SELECTED AVERAGE BALANCE SHEET DATA              
Total loans$12,453
 $12,096
 $10,566
 $10,217
 $9,083
 $8,487
 $3,936
 $3,805
 $2,269
 $2,371
$2,453
 $2,385
 $769
 $711
 $80
 $85
 $41,868
 $40,111
    
Total deposits15,839
 15,871
 11,116
 11,384
 10,681
 9,783
 4,513
 4,235
 4,057
 3,829
2,704
 2,745
 970
 863
 (21) (588) 50,062
 48,181
    
                   
Vectra TCBW Other 
Consolidated
Company
    
2016 2015 2016 2015 2016 2015 2016 2015    
                   
SELECTED INCOME STATEMENT DATA                
Net interest income$60.3
 $58.5
 $18.8
 $17.0
 $(91.4) $(136.8) $917.7
 $841.1
    
Provision for loan losses(5.9) 3.5
 (0.4) (0.6) 0.1
 
 76.6
 (0.9)    
Net interest income after provision for loan losses66.2
 55.0
 19.2
 17.6
 (91.5) (136.8) 841.1
 842.0
    
Noninterest income11.3
 10.4
 2.3
 2.0
 27.8
 (92.6) 242.5
 112.7
    
Noninterest expense42.6
 48.4
 10.1
 6.3
 110.2
 40.4
 777.5
 792.0
    
Net Income (loss) before taxes$34.9
 $17.0
 $11.4
 $13.3
 $(173.9) $(269.8) $306.1
 $162.7
    
                   
SELECTED AVERAGE BALANCE SHEET DATA              
Total loans$2,434
 $2,379
 $755
 $717
 $60
 $83
 $41,556
 $40,155
    
Total deposits2,725
 2,700
 950
 841
 (128) (837) 49,753
 47,806
    
ITEM 2.MANAGEMENT’S DISCUSSION AND ANALYSIS OF FINANCIAL CONDITION AND RESULTS OF OPERATIONS
FORWARD-LOOKING INFORMATION
Statements in this Quarterly Report on Form 10-Q that are based on other than historical data are forward-looking within the meaning of the Private Securities Litigation Reform Act of 1995. Forward-looking statements provide current expectations or forecasts of future events and include, among others:
statements with respect to the beliefs, plans, objectives, goals, targets, commitments, designs, guidelines, expectations, anticipations, and future financial condition, results of operations and performance of Zions Bancorporation (“the Parent”) and its subsidiaries (collectively “the Company,” “Zions,” “we,” “our,” “us”); and
statements preceded by, followed by, or that include the words “may,” “could,” “should,” “would,” “believe,” “anticipate,” “estimate,” “expect,” “intend,” “target,” “commit,” “design,” “plan,” “projects,” or similar expressions.

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These forward-looking statements are not guarantees of future performance, nor should they be relied upon as representing management’s views as of any subsequent date. Forward-looking statements involve significant risks and uncertainties and actual results may differ materially from those presented, either expressed or implied, including, but not limited to, those presented in Management’s Discussion and Analysis. Factors that might cause such differences include, but are not limited to:
the Company’s ability to successfully execute its business plans, manage its risks, and achieve its objectives, including its restructuring and efficiency initiatives and its tender offers for certain of its preferred stock;
changes in local, national and international political and economic conditions, including without limitation the political and economic effects of the recent economic crisis, delay of recovery from that crisis, economic and

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fiscal imbalances in the United States and other countries, potential or actual downgrades in ratings of sovereign debt issued by the United States and other countries, and other major developments, including wars, military actions, and terrorist attacks;
changes in financial and commodity market prices and conditions, either internationally, nationally or locally in areas in which the Company conducts its operations, including without limitation rates of business formation and growth, commercial and residential real estate development, real estate prices, and oil and gas-related commodity prices;
changes in markets for equity, fixed income, commercial paper and other securities, including availability, market liquidity levels, and pricing, including the actual amount and duration of declines in the price of oil and gas;
any impairment of our goodwill or other intangibles, or any adjustment of valuation allowances on our deferred tax assets due to adverse changes in the economic environment, declining operations of the reporting unit, or other factors;
changes in interest rates, the quality and composition of the loan and securities portfolios, demand for loan products, deposit flows and competition;
acquisitions and integration of acquired businesses;
increases in the levels of losses, customer bankruptcies, bank failures, claims, and assessments;
changes in fiscal, monetary, regulatory, trade and tax policies and laws, and regulatory assessments and fees, including policies of the U.S. Department of Treasury, the OCC, the Board of Governors of the Federal Reserve Board System, the FDIC, the SEC, and the CFPB; 
the impact of executive compensation rules under the Dodd-Frank Act and banking regulations which may impact the ability of the Company and other American financial institutions to retain and recruit executives and other personnel necessary for their businesses and competitiveness;
the impact of the Dodd-Frank Act and Basel III, and rules and regulations thereunder, on our required regulatory capital and liquidity levels, governmental assessments on us (including, but not limited to, the Federal Reserve reviews of our annual capital plan), the scope of business activities in which we may engage, the manner in which we engage in such activities, the fees we may charge for certain products and services, and other matters affected by the Dodd-Frank Act and these international standards;
continuing consolidation in the financial services industry;
new legal claims against the Company, including litigation, arbitration and proceedings brought by governmental or self-regulatory agencies, or changes in existing legal matters;
success in gaining regulatory approvals, when required;
changes in consumer spending and savings habits;
increased competitive challenges and expanding product and pricing pressures among financial institutions;
inflation and deflation;
technological changes and the Company’s implementation of new technologies;
the Company’s ability to develop and maintain secure and reliable information technology systems;
legislation or regulatory changes which adversely affect the Company’s operations or business;

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the Company’s ability to comply with applicable laws and regulations;
changes in accounting policies or procedures as may be required by the FASB or regulatory agencies; and
costs of deposit insurance and changes with respect to FDIC insurance coverage levels.
Except to the extent required by law, the Company specifically disclaims any obligation to update any factors or to publicly announce the result of revisions to any of the forward-looking statements included herein to reflect future events or developments.

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GLOSSARY OF ACRONYMS
ACLAllowance for Credit LossesHECLHQLAHome Equity Credit LineHigh-Quality Liquid Assets
AFSAvailable-for-SaleHQLAHTMHigh-Quality Liquid AssetsHeld-to-Maturity
ALCOAsset/Liability CommitteeHTMIFRSHeld-to-MaturityInternational Financial Reporting Standards
ALLLAllowance for Loan and Lease LossesIFRSISDAInternational Financial Reporting StandardsSwaps and Derivative Association
AmegyAmegy Bank, a division of ZB, N.A.ISDALCRInternational Swaps and Derivative AssociationLiquidity Coverage Ratio
AOCIAccumulated Other Comprehensive IncomeLCRLGDLiquidity Coverage RatioLoss Given Default
ASCAccounting Standards CodificationLGDLoss Given Default
ASUAccounting Standards UpdateLIBORLondon Interbank Offered Rate
ATMASUAutomated Teller MachineAccounting Standards UpdateNAVNet Asset Value
BOLIATMBank-Owned Life InsuranceAutomated Teller MachineNBAZNational Bank of Arizona, a division of ZB, N.A.
bpsBOLIbasis pointsBank-Owned Life InsuranceNIMNet Interest Margin
CACbpsCredit Administration Committeebasis pointsNSBNevada State Bank, a division of ZB, N.A.
CB&TCalifornia Bank & Trust, a division of ZB, N.A.NSFRNet Stable Funding Ratio
CCARComprehensive Capital Analysis and ReviewNYMEXNew York Mercantile Exchange
CDOCollateralized Debt ObligationOCCOffice of the Comptroller of the Currency
CET1Common Equity Tier 1 (Basel III)OCIOther Comprehensive Income
CFPBConsumer Financial Protection BureauOREOOther Real Estate Owned
CLTVCombined Loan-to-Value RatioOTCOver-the-Counter
COSOCommittee of Sponsoring Organizations of the Treadway CommissionOTTIOther-Than-Temporary Impairment
CRECommercial Real EstateParentZions Bancorporation
CSACredit Support AnnexPCIPurchase Credit-Impaired
CSVCash Surrender ValuePEIsPEIPrivate Equity InvestmentsInvestment
DFASTDodd-Frank Act Stress TestPPNRPre-provision Net Revenue
Dodd-Frank ActDodd-Frank Wall Street Reform and Consumer Protection ActROCRisk Oversight Committee
DTADeferred Tax AssetRULCReserve for Unfunded Lending Commitments
EITFEmerging Issues Task ForceSBASmall Business Administration
ERMEnterprise Risk ManagementSBICsSBICSmall Business Investment CompaniesCompany
ERMCEnterprise Risk Management CommitteeSECSecurities and Exchange Commission
EVEEconomic Value of Equity at RiskSNCsSNCShared National CreditsCredit
FAMCFederal Agricultural Mortgage Corporation, or “Farmer Mac”SVCSecurities Valuation Committee
FASBFinancial Accounting Standards BoardTCBOThe Commerce Bank of Oregon, a division of ZB, N.A.
FDICFederal Deposit Insurance CorporationTCBWThe Commerce Bank of Washington, a division of ZB, N.A.
FHLBFederal Home Loan BankTDRTroubled Debt Restructuring
FHLMCFederal Home Loan Mortgage Corporation, or “Freddie Mac”VectraVectra Bank Colorado, a division of ZB, N.A.
FNMAFederal National Mortgage Association, or “Fannie Mae”VIEVariable Interest Entity
FRBFederal Reserve BoardZB, N.A.ZB, National Association
GAAPGenerally Accepted Accounting PrinciplesZions BankZions Bank, a division of ZB, N.A.
GNMAHECLGovernment National Mortgage Association, or “Ginnie Mae”Home Equity Credit LineZMSCZions Management Services Company

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ZIONS BANCORPORATION AND SUBSIDIARIES

CRITICAL ACCOUNTING POLICIES AND SIGNIFICANT ESTIMATES
The Company has made no significant changes in its critical accounting policies and significant estimates from those disclosed in its 2015 Annual Report on Form 10-K.
RESULTS OF OPERATIONS
Executive Summary
Net earnings applicable to common shareholders for the secondthird quarter of 2016 was $90.6$116.9 million, or $0.44$0.57 per diluted common share, compared towith net earnings applicable to common shareholders of $78.8$90.6 million, or $0.38 per diluted common share for the first quarter of 2016, and $(1.1) million, or $(0.01)$0.44 per diluted common share for the second quarter of 2015. The Company’s second quarter 2015 results included a $1372016, and $84.2 million, pre-tax loss from the sale of remaining collateralized debt obligations (“CDOs”). Excluding this loss, net earnings applicable to common shareholders was $83.4 million,or $0.41 per diluted common share for the same quarter.third quarter of 2015.
Major Initiative Announced in 2015
In June 2015, we announced a series of initiatives designed to substantially improve customer experience (e.g., faster turnaround times), simplify our corporate structure and operations, and drive positive operating leverage. Key elements of the announcement included:
Consolidation of bank charters from seven to one while maintaining local leadership, local product pricing, and local brands. The consolidation of the bank charters occurred on December 31, 2015.
Creation of a Chief Banking Officer position, with responsibility for retail banking, wealth management, and residential mortgage lending.
Consolidation of risk functions and other non-customer facing operations, while emphasizing local credit decision making.
Investment in technology to modernize our loan, deposit, and customer information systems to meet the demands of a rapidly changing information technology environment.
The Company expects to continue to benefit from these initiatives to create efficiencies and improve customer experience.
Financial Performance Targets
Following are the targeted financial performance outcomes of these organizational changes, and associated operational and technological initiatives with some brief comments regarding current performance against these measures:
Maintain adjusted noninterest expense less than $1.58 billion in 2016, although increasing somewhat in 2017; this target excludes those same expense items excluded in arriving at the efficiency ratio (see “GAAP to Non-GAAP Reconciliations” on page 90 for more information regarding the calculation of the efficiency ratio). For the secondthird quarter of 2016 adjusted noninterest expense was $384.3 million and first quarter$403.8 million. Year-to-date adjusted noninterest expense was $396.0 million, leading to an annualized amount of $1.56$1.18 billion, which, when annualized, is consistent with our commitment to hold adjusted noninterest expense to less than $1.58 billion in 2016.
Achieve an efficiency ratio less than 66% in 2016, and in the low 60s by fiscal year-end 2017, driven by expense and revenue initiatives detailed below; the announced target assumes a slight increase in interest rates. Our efficiency ratio improved 399increased 144 bps to 66.0% for the third quarter of 2016 compared with 64.5% forduring the second quarter of 2016, compared with 68.5% during the first quarter of 2016, and improved 659313 bps compared with an efficiency ratio of 71.1%69.1% for the secondthird quarter of 2015. The ratio for the six months ending on September 30, 2016 year-to-date ratio is 66.5%65.2%, which is an improvement of 502485 bps compared with the efficiency ratio of 71.5%70.1% for the first six months of 2015.same prior year period. We show the efficiency ratio for six-month periods, in addition to the three-month periods, in order to illustrate the trend over longer periods as quarterly fluctuations may not be reflective of the prevailing trend, while yearly results may not accurately reflect the pace of change. We show a nine-month efficiency ratio to illustrate the progress towards our annual target. The year-to-date efficiency ratio was 66.3%. We are firmly committed to achieving an efficiency ratio of less than 66% in 2016. See “GAAP to Non-GAAP Reconciliations” on page 90 for more information regarding the calculation of the efficiency ratio.

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Achieve annual gross pretax cost savings of $120 million from operational expense initiatives by year-end 2017, which include overhauling technology, consolidating legal charters, and improving operating efficiency across the Company. We remain on track with this initiative, and expect to exceed 80%achieve cost savings in excess of ourthe initial target to reduce gross expenses by the end of 2016, which is assisting us in our ability to hold expenses flat.

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$120 million.
Our initiatives are designed to make the Company a more efficient organization that drives positive operating leverage, increases returns on tangible common equity over the long term to double digit levels, simplifies the corporate structure and operations, and improves customer experience. The increase in operating leverage is evident through increased revenue from growth in loans, deployment of cash to mortgage-backed securities, increasedcontinued use of interest rate swaps, improvement in core fee income, and disciplined expense management.
If successfully implemented, these initiatives should ultimately produce better revenue and expense trajectories, improve profitability, and drive stronger investor returns.
Areas Experiencing Strength in the SecondThird Quarter and First SixNine Months of 2016
Net interest income, which is more than three-quarters of our revenue, was $469.2 million in the third quarter of 2016 and $464.8 million and $425.4 million in the second quarter of 2016 and $452.8 million and $423.7 million in the first quarter of 2016 and secondthird quarter of 2015, respectively. Year-to-date net interest income is also up in 2016, increasing 9.1%9.5% to $917.7 million$1.4 billion in 2016 from $841.1$1.3 billion in 2015. The increase in net interest income was due to our effort to change the mix of interest-earning assets from lower-yielding money market securities into higher-yielding loans and investment securities and to reduce interest expense related to long-term debt. The average investment securities portfolio for the secondthird quarter of 2016 grew by $4.4$4.6 billion compared towith the same prior year period, which resulted in a $20.1$19.1 million increase in interest income on investment securities over the same quarters. As a result of tender offers, early calls and maturities, the average balance of long-term debt for the secondthird quarter of 2016 decreased by $286.1$348.5 million compared towith the same prior year period, which led to a $9.2$9.5 million decrease in interest expense for the secondthird quarter of 2016 compared towith the secondthird quarter of 2015. These actions should improve both the Company’s revenue stability under future stressful economic scenarios and current earnings as compared to the alternative of holding money market investments.
Some of the same factors that led to an increase in net interest income also helped improve net interest margin (“NIM”) between the secondthird quarter of 2016 and the firstthird quarter of 2016,2015, which was 3.39%3.36% and 3.35%3.11% respectively. AlthoughDeclines in the yields on average commercial (“CRE”) and consumer loans and average investment securities were partially offset by increases in the yield on securities fell slightly betweenaverage commercial loans, which represent over half of the quarters, it was stableCompany’s lending portfolio, and a shift of approximately $5 billion away from low-yielding money market investments into higher-yielding agency-backed securities. Further, rates dropped 14 bps on the Company’s funding base and rose slightly in the loan portfolio. Average loan yields increased 2 bps during the quarter due to changesthe aforementioned decline in the commercial real estate (“CRE”) portfolio. Net interest margin for the second quarter of 2015 was 3.18%. A major driver for the 21 bps increase year-over-year is our strategy to reduce higher cost debt and shift away from lower-yielding money market investments into higher-yielding investment and lending assets.long-term debt.
We continue to generate strong growth in adjustedAdjusted pre-provision net revenue (“PPNR”) of $208.5 million for the third quarter of 2016 was down $3.0 million, or 1.4%, reflectingfrom the prior quarter, but has increased by $37.3 million, or 21.8%, compared with the third quarter of 2015. The increase from the same prior year period reflects operating leverage improvement resulting from solid loan growth, a more profitable earning assets mix, and controlled core operating expenses. Adjusted PPNR was $211.5 million in the second quarter of 2016, compared with $182.1 million in the first quarter of 2016 and $160.4 million in the second quarter 2015, representing increases of 16.1% and 31.8%, respectively. These increases in PPNR were due to higher net interest income between the periods, driven by the previously detailed factors. The higher adjusted PPNR in the secondthird quarter of 2016 as well as lower adjusted noninterest expense compared with the second quarter of 2015, led todrove an improvement in the Company’s efficiency ratio from 71.1%69.1% in the third quarter of 2015 to 64.5% between66.0% in the second quarter 2015 and 2016, respectively.current quarter. Noninterest expense of $381.9$403.3 million for the secondthird quarter of 2016 was $17.1$12.0 million lowerhigher than it was in the secondthird quarter of 2015. The secondincrease in total noninterest expense from the third quarter of 2015 included approximately $6 millionwas primarily due to a legal accrual, the alignment of seasonal share-based compensation; however, even considering this,a single back-office operating environment, and other employee benefits-related items. The increase in noninterest expense improvedwas partially offset by a significant amount.lower accrual for senior management compensation. See “GAAP to Non-GAAP Reconciliations” on page 90 for more information regarding the calculation of adjusted PPNR.
Net loans and leases were $42.5 billion at June 30, 2016, increasing $1.1 billion and $2.5 billion compared to March 31, 2016 and June 30, 2015, respectively. The $1.1 billion loan growth during the second quarter represents a 2.6% (10.5% on an annualized basis based on second quarter growth) increase. This solid growth was widespread across product and geography with particular strength in 1-4 family residential consumer and term CRE loans.
Customer-related fees in the secondthird quarter of 2016 increased by 4.6%6.9% compared towith the prior quarter and 4.9%by 11.2% from the prior year period. MostIncreases were spread across most categories of customer-related fees, with the quarter-over-quarter increaselargest increases in interchange fees, trust income, and loan servicing income. In addition to the customer-related fees, noninterest income for the third quarter of 2016 was also higher due to increased securities gains primarily due to an increase of approximately $8 million in customer swap fees, credit card and interchange fees, and SBA and mortgage loan sales. In the second quartermarket value of 2016 there was a $1.7 million gain related toone of the increased valuation of mortgage loans held for sale at quarter end which was attributable to theCompany’s Small Business Investment Company (“SBIC”) investments.

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sharp decline of interest rates at the end of the month of June. As such, we do not expect that specific gain to be repeated, although we continue to experience strong growth in our mortgage business.
Asset quality for the non-oil and gas portfolio, representing approximately 95% of the Company’s lending assets, remained strong with net charge-offs of $1.0 million remaining relatively stablewhen compared with the prior quarter. TheExcluding oil and gas-related loans, the ratio of nonperforming assets to loans and leases and other real estate owned (“OREO”) decreased to 1.30%was 0.60% at September 30, 2016 compared with 0.67% at June 30, 2016. For the non-oil and gas-related loans, the allowance for credit losses (“ACL”) was 1.13% of loans and leases at September 30, 2016, from $1.33%compared with 1.15% at March 31,June 30, 2016. Due to weaknessesNet charge-offs for the total portfolio were $30 million in the third quarter of 2016, and $104 million for the first nine months of 2016. Excluding the oil and gas-related portfolio, classified loans, for the entire loan portfolio increased to $1.6 billionCompany had net recoveries of $11 million, or an annualized (0.11)% of average loans, in the secondthird quarter of 2016, from $1.5 billion inand $10 million of net recoveries for the first quarter; however,nine months of 2016.
Tangible return on average tangible common equity was 7.88%, up 157 bps from the percentage of classified loans that were current (performing) between these periods was 88.8%prior quarter and 87.7%, respectively. Although the amount of classified loans has increased, the performance of these loans has not deteriorated toup 183 bps from the same extent.prior year period, driven by steady growth in net interest and noninterest income and improvements in credit quality.
Areas Experiencing Challenges in the SecondThird Quarter and First SixNine Months of 2016
The overall credit quality of our loan portfolio remained strong, but the credit quality of our oil and gas-related portfolio experienced some deterioration. Criticized and classified oil and gas-related loan balances decreased $19$3 million and $44 million respectively in the secondthird quarter of 2016 relative to the first quarter, an improvement compared to the prior quarter’s deterioration of $197 million. We did experience some continued adverse grade migration insecond quarter; however, criticized and classified oil and gas-related classified loans whichas a percentage of net oil and gas-related loans increased $99 million from405 bps and 159 bps respectively for the first quarter of 2016.same period. Nonaccrual oil and gas-related loan balances were flatincreased $60 million relative to the prior quarter,quarter. The Company actively manages this portfolio and of those nonaccruing loans, 89.2% and 90.6% for the second and first quarter of 2016 respectively, were current on their payments of principal and interest. Asas part of our risk management efforts, we further reduced our total oil and gas-related credit exposure to $4.4$4.1 billion, a reduction of approximately $271$300 million. Outstanding net loan balances in the oil and gas-related portfolio decreased $256 million or 10.0% during the current quarter and $875 million betweenoutstanding net loan balances related to oilfield services and oil and gas service manufacturing decreased 14.7%, which are the highest risk areas for our oil and gas-related exposure.
Average yields in our lending and investments portfolios fell slightly compared with the second quarter of 2016 and with the same prior year period.third quarter of 2015. Factors include competitive pricing pressure, continued depressed interest rates, and premium amortization on agency securities due to prepayments. We expect continued growth from residential mortgage and commercial lending, with limited growth in our CRE portfolio.
Net Interest Income, Margin and Interest Rate Spreads
Net interest income is the difference between interest earned on interest-earning assets and interest paid on interest-bearing liabilities. Taxable-equivalent net interest income is the largest portion of our revenue. For the secondthird quarter of 2016, taxable-equivalent net interest income was $470.9$475.7 million, compared to $458.2with $470.9 million for the firstsecond quarter of 2016 and $428.0$429.8 million for the secondthird quarter of 2015.
Net interest margin in 2016 vs. 2015
The NIM was 3.39%3.36% and 3.18%3.11% for the secondthird quarter of 2016 and 2015, respectively, and 3.35%3.39% for the firstsecond quarter of 2016. The increased NIM for the secondthird quarter, compared towith the same prior year period, resulted primarily from lower rates on long-term debt as a result of tender offers, early calls and maturities of high-cost debt and the change in the mix of interest-earning assets by moving funds from lower-yielding money market investments into available-for-sale (“AFS”) investment securities and loans.loans, in addition to lower rates on long-term debt as a result of tender offers, early calls and maturities of high-cost debt. Due to market trends and competitive pricing, general yields on interest-earning assets have declined year-over-year; however, interest-earning asset balances continue to increase on variable-rate assets.year-over-year.
The average loan portfolio increased $2.0$2.5 billion between the secondthird quarter of 2016 and the secondthird quarter of 2015, the2015. The average yield fell by 67 bps over the same period due to a continuation of competitive pricing pressure and depressed interest rates as new loans were originated or existing loans reset or were modified. The yield increased 2decreased 5 bps between the firstsecond quarter of 2016 and the secondthird quarter of 2016 primarily as a result of changes in the yield in CRE term and consumer loans.
The average balance of AFS securities for the secondthird quarter of 2016 increased by $4.3$4.4 billion, or 93.0%84.5%, but the average yield was 63 bps lower compared towith the same prior year period.period, mainly due to accelerated premium

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amortization due to prepayments on agency-backed securities. The slight decrease in the average yield was more than offset by the increase in average balance which produced $19.8$19.9 million more oftaxable-equivalent interest income compared with the same prior year quarter.
Average noninterest-bearing demand deposits provided us with low cost funding and comprised 43.7%44.3% of average total deposits for the secondthird quarter of 2016, compared to 43.6%with 44.1% for the secondthird quarter of 2015. Average interest-bearing deposits increased by 3.6%3.1% in the secondthird quarter of 2016, compared towith the same prior year period, while the average rate paid declined by 1 bp to 17was flat at 18 bps. Although we consider a wide variety of sources when determining our funding needs, we benefit from access to borrower deposits, particularly noninterest-bearing deposits, that provide

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us with a low cost of funds and have a positive impact on our NIM. A significant decrease in the amount of noninterest-bearing deposits maywould likely have a negative impact on our NIM.
The average balance of long-term debt was $286.1$348.5 million lower for the secondthird quarter of 2016 compared towith the same prior year period. The reduced balance was a result of tender offers, early calls, and maturities. The average interest rate paid on long-term debt decreased by 208191 bps between the same periods. This is primarily due to higher cost long-term debt maturities in both the third and fourth quarterquarters of 2015. Additionally, $89 million par amount of long-term debt matured late in the second quarter of 2016. We continue2016 and the Company reduced its long-term debt by $128 million during the third quarter of 2016 by exercising its call options for junior subordinated debentures related to look for opportunities to manage down the cost of funds.trust preferred securities. Refer to the “Liquidity Risk Management” section beginning on page 83 for more information.
See “Interest Rate and Market Risk Management” on page 79 for further discussion of how we manage the portfolios of interest-earning assets, interest-bearing liabilities, and the associated risk.
Interest rate spreads
The spread on average interest-bearing funds was 3.25%3.23% and 2.98%2.91% for the second quarterthird quarters of 2016 and 2015, respectively. The spread on average interest-bearing funds for these periods was affected by the same factors that had an impact on the NIM.
The mix of interest-earning assets may change over time as we emphasize loan growth in 1-4 family residential and commercial and industrial loans. Although we have experienced strong growth in term CRE, we expect limited growth in future quarters, due in part to internal concentration limits and risk management practices may reduce the growth rate in future quarters.
practices. In addition, as discussed below, we are continuing to invest in short-to-medium duration U.S. agency pass-through securities that qualify as high-quality liquid assets (“HQLA”); over time we expect these investments to continue to reduce the proportion of earning assets in money market investments, and increase the proportion of AFS securities. Average yields on the loan portfolio may continue to experience modest downward pressure due to competitive pricing and growth in lower-yielding residential mortgages.
We believe that some of the downward pressure on the NIM will be mitigated by lower interest expense on reduced levels of long-term debt due to maturities that occurred towards the end of 2015 and have continued through the first half of 2016. We also believe we can offset some of the pressure on the NIM through loan growth, redeployment of cash held in money market investments to term investment securities, and employment of interest rate swaps designated as cash flow hedges.
We expect to remain “asset-sensitive” (which refers to net interest income increasing as a result of a rising interest rate environment) with regard to interest rate risk. In response to liquidity and liquidity stress-testing regulations, which elevate, relative to historic levels, the proportion of HQLA we will be required to hold, we decided in the second half of 2014 to begin deploying cash into short-to-medium duration U.S. agency pass-through securities. During the secondthird quarter of 2016, we purchased HQLA securities of $1.1$1.5 billion at amortized cost, increasing HQLA securities by $626$835 million after paydowns and payoffs during the quarter. WeIn the near term, we plan to continue these purchases. Over time these purchases, which are expected to somewhat reduce our asset sensitivity compared towith previous periods. periods, and better match the duration of our assets with our liabilities, while also improving current earnings.
Our estimates of the Company’s actual interest rate risk position are predicated on a static balance sheet size and are highly dependent upon a number of assumptions regarding the repricing behavior of various deposit and loan types in response to changes in both short-term and long-term interest rates, balance sheet composition, and other modeling assumptions, as well as the actions of competitors and customers in response to those changes. In addition, our modeled projections for noninterest-bearing demand deposits, which are a substantial portion of our deposit balances, are particularly reliant on assumptions for which there is little historical experience due to the prolonged period of very low interest rates. Further detail on interest rate risk is discussed in “Interest Rate and Market Risk Management” on page 79.

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The following schedule summarizes the average balances, the amount of interest earned or incurred, and the applicable yields for interest-earning assets and the costs of interest-bearing liabilities that generate taxable-equivalent net interest income.

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CONSOLIDATED AVERAGE BALANCE SHEETS, YIELDS AND RATES
(Unaudited)
Three Months Ended
June 30, 2016
 Three Months Ended
June 30, 2015
Three Months Ended
September 30,
 2016
 
Three Months Ended
September 30,
 2015
(In thousands)
Average
balance
 
Amount of
interest 1
 
Average
yield/rate
 
Average
balance
 
Amount of
interest 1
 
Average
yield/rate
Average
balance
 
Amount of
interest 1
 
Average
yield/rate
 
Average
balance
 
Amount of
interest 1
 
Average
yield/rate
ASSETS                      
Money market investments$4,045,333
 $5,564
 0.55% $8,414,602
 $5,785
 0.28%$3,139,771
 $4,934
 0.63% $8,775,823
 $6,018
 0.27%
Securities:                      
Held-to-maturity669,372
 7,430
 4.46
 583,349
 7,361
 5.06
706,012
 7,677
 4.33
 553,615
 7,075
 5.07
Available-for-sale8,852,688
 42,547
 1.93
 4,585,760
 22,706
 1.99
9,697,759
 44,380
 1.82
 5,254,986
 24,502
 1.85
Trading account78,479
 757
 3.88
 76,706
 610
 3.19
80,591
 676
 3.34
 47,235
 445
 3.74
Total securities9,600,539
 50,734
 2.13
 5,245,815
 30,677
 2.35
10,484,362
 52,733
 2.00
 5,855,836
 32,022
 2.17
Loans held for sale126,045
 1,104
 3.52
 115,377
 1,002
 3.48
132,602
 1,114
 3.34
 131,113
 1,222
 3.70
Loans and leases 2
                      
Commercial21,934,114
 229,098
 4.20
 21,527,723
 226,656
 4.22
21,815,443
 229,720
 4.19
 21,289,641
 222,478
 4.15
Commercial real estate11,169,157
 119,695
 4.31
 10,089,092
 112,472
 4.47
11,331,183
 119,242
 4.19
 10,170,539
 114,695
 4.47
Consumer9,004,845
 86,821
 3.88
 8,514,519
 82,955
 3.91
9,340,297
 89,464
 3.81
 8,565,075
 84,200
 3.90
Total loans and leases42,108,116
 435,614
 4.16
 40,131,334
 422,083
 4.22
42,486,923
 438,426
 4.11
 40,025,255
 421,373
 4.18
Total interest-earning assets55,880,033
 493,016
 3.55
 53,907,128
 459,547
 3.42
56,243,658
 497,207
 3.52
 54,788,027
 460,635
 3.34
Cash and due from banks520,769
     591,347
    555,945
     583,936
    
Allowance for loan losses(606,228)     (621,348)    (608,948)     (602,677)    
Goodwill1,014,129
     1,014,129
    1,014,129
     1,014,129
    
Core deposit and other intangibles13,527
     22,135
    11,576
     19,726
    
Other assets2,723,529
     2,558,514
    2,845,876
     2,597,278
    
Total assets$59,545,759
     $57,471,905
    $60,062,236
     $58,400,419
    
           
LIABILITIES AND SHAREHOLDERS’ EQUITY                      
Interest-bearing deposits:                      
Savings and money market$25,779,999
 $9,258
 0.14% $24,514,516
 $9,743
 0.16%$25,682,829
 $9,374
 0.15% $24,676,897
 $9,895
 0.16%
Time2,192,366
 2,515
 0.46
 2,300,593
 2,464
 0.43
2,409,092
 3,086
 0.51
 2,242,064
 2,445
 0.43
Foreign138,583
 96
 0.28
 325,640
 114
 0.14
116,678
 89
 0.30
 441,670
 202
 0.18
Total interest-bearing deposits28,110,948
 11,869
 0.17
 27,140,749
 12,321
 0.18
28,208,599
 12,549
 0.18
 27,360,631
 12,542
 0.18
Borrowed funds:                      
Federal funds and other short-term borrowings546,707
 321
 0.24
 214,287
 74
 0.14
343,358
 193
 0.22
 211,322
 76
 0.14
Long-term debt790,103
 9,913
 5.05
 1,076,178
 19,137
 7.13
679,990
 8,766
 5.13
 1,028,457
 18,235
 7.03
Total borrowed funds1,336,810
 10,234
 3.08
 1,290,465
 19,211
 5.97
1,023,348
 8,959
 3.48
 1,239,779
 18,311
 5.86
Total interest-bearing liabilities29,447,758
 22,103
 0.30
 28,431,214
 31,532
 0.44
29,231,947
 21,508
 0.29
 28,600,410
 30,853
 0.43
Noninterest-bearing deposits21,839,395
     20,984,073
    22,466,132
     21,558,557
    
Other liabilities596,697
     559,722
    668,180
     581,880
    
Total liabilities51,883,850
     49,975,009
    52,366,259
     50,740,847
    
Shareholders’ equity:                      
Preferred equity778,844
     1,004,031
    709,601
     1,004,059
    
Common equity6,883,065
     6,492,865
    6,986,376
     6,655,513
    
Total shareholders’ equity7,661,909
     7,496,896
    7,695,977
     7,659,572
    
Total liabilities and shareholders’ equity$59,545,759
     $57,471,905
    $60,062,236
     $58,400,419
    
Spread on average interest-bearing funds    3.25%
     2.98%
    3.23%
     2.91%
Taxable-equivalent net interest income and net yield on interest-earning assets  $470,913
 3.39%
   $428,015
 3.18%
  $475,699
 3.36%
   $429,782
 3.11%
1 
Taxable-equivalent rates used where applicable.
2 
Net of unearned income and fees, net of related costs. Loans include nonaccrual and restructured loans.

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Six Months Ended
June 30, 2016
 Six Months Ended
June 30, 2015
Nine Months Ended
September 30, 2016
 Nine Months Ended
September 30, 2015
(In thousands)
Average
balance
 
Amount of
interest 1
 
Average
yield/rate
 
Average
balance
 
Amount of
interest 1
 
Average
yield/rate
Average
balance
 
Amount of
interest 1
 
Average
yield/rate
 
Average
balance
 
Amount of
interest 1
 
Average
yield/rate
ASSETS                      
Money market investments$4,583,908
 $12,593
 0.55% $8,215,087
 $11,003
 0.27%$4,099,015
 $17,527
 0.57% $8,404,053
 $17,021
 0.27%
Securities:                      
Held-to-maturity615,706
 14,228
 4.65
 608,001
 15,356
 5.09
646,027
 21,905
 4.53
 589,673
 22,431
 5.09
Available-for-sale8,480,698
 85,162
 2.02
 4,334,279
 43,479
 2.02
8,889,346
 129,542
 1.95
 4,644,554
 67,981
 1.96
Trading account65,923
 1,229
 3.75
 73,327
 1,208
 3.32
70,848
 1,905
 3.59
 64,534
 1,653
 3.42
Total securities9,162,327
 100,619
 2.21
 5,015,607
 60,043
 2.41
9,606,221
 153,352
 2.13
 5,298,761
 92,065
 2.32
Loans held for sale133,234
 2,482
 3.75
 110,356
 1,916
 3.50
133,022
 3,596
 3.61
 117,351
 3,138
 3.58
Loans and leases 2
                      
Commercial21,779,124
 454,686
 4.20
 21,551,958
 449,990
 4.21
21,791,318
 684,406
 4.20
 21,463,558
 672,468
 4.19
Commercial real estate10,862,513
 230,617
 4.27
 10,086,995
 223,285
 4.46
11,019,877
 349,859
 4.24
 10,115,149
 337,980
 4.47
Consumer8,913,872
 172,320
 3.89
 8,516,086
 165,991
 3.93
9,057,052
 261,784
 3.86
 8,532,595
 250,191
 3.92
Total loans and leases41,555,509
 857,623
 4.15
 40,155,039
 839,266
 4.21
41,868,247
 1,296,049
 4.13
 40,111,302
 1,260,639
 4.20
Total interest-earning assets55,434,978
 973,317
 3.53
 53,496,089
 912,228
 3.44
55,706,505
 1,470,524
 3.53
 53,931,467
 1,372,863
 3.40
Cash and due from banks624,173
     667,062
    601,264
     639,049
    
Allowance for loan losses(603,222)     (615,324)    (605,145)     (611,062)    
Goodwill1,014,129
     1,014,129
    1,014,129
     1,014,129
    
Core deposit and other intangibles14,453
     23,239
    13,487
     22,055
    
Other assets2,701,527
     2,558,434
    2,749,993
     2,571,525
    
Total assets$59,186,038
     $57,143,629
    $59,480,233
     $57,567,163
    
           
LIABILITIES AND SHAREHOLDERS’ EQUITY                      
Interest-bearing deposits:                      
Savings and money market$25,565,018
 $18,646
 0.15% $24,365,220
 $19,188
 0.16%$25,604,575
 $28,020
 0.15% $24,470,254
 $29,083
 0.16%
Time2,140,032
 4,819
 0.45
 2,336,344
 5,002
 0.43
2,230,373
 7,905
 0.47
 2,304,572
 7,447
 0.43
Foreign186,957
 249
 0.27
 338,684
 235
 0.14
163,360
 338
 0.28
 373,390
 437
 0.16
Total interest-bearing deposits27,892,007
 23,714
 0.17
 27,040,248

24,425
 0.18
27,998,308
 36,263
 0.17
 27,148,216

36,967
 0.18
Borrowed funds:                      
Federal funds and other short-term borrowings407,069
 441
 0.22
 217,002
 152
 0.14
385,677
 634
 0.22
 215,088
 228
 0.14
Long-term debt799,613
 20,007
 5.03
 1,080,992
 38,055
 7.10
759,448
 28,773
 5.06
 1,063,288
 56,290
 7.08
Total borrowed funds1,206,682
 20,448
 3.41
 1,297,994
 38,207
 5.94
1,145,125
 29,407
 3.43
 1,278,376
 56,518
 5.91
Total interest-bearing liabilities29,098,689
 44,162
 0.31
 28,338,242
 62,632
 0.45
29,143,433
 65,670
 0.30
 28,426,592
 93,485
 0.44
Noninterest-bearing deposits21,860,586
     20,765,946
    22,063,908
     21,033,053
    
Other liabilities588,075
     586,091
    614,969
     584,672
    
Total liabilities51,547,350
     49,690,279
    51,822,310
     50,044,317
    
Shareholders’ equity:                      
Preferred equity803,667
     1,004,023
    772,083
     1,004,035
    
Common equity6,835,021
     6,449,327
    6,885,840
     6,518,811
    
Total shareholders’ equity7,638,688
     7,453,350
    7,657,923
     7,522,846
    
Total liabilities and shareholders’ equity$59,186,038
     $57,143,629
    $59,480,233
     $57,567,163
    
Spread on average interest-bearing funds    3.22%     2.99%    3.23%     2.96%
Taxable-equivalent net interest income and net yield on interest-earning assets  $929,155
 3.37%   $849,596
 3.20%  $1,404,854
 3.37%   $1,279,378
 3.17%
1 
Taxable-equivalent rates used where applicable.
2 
Net of unearned income and fees, net of related costs. Loans include nonaccrual and restructured loans.
Provisions for Credit Losses
The provision for loan losses is the amount of expense that, in our judgment, is required to maintain the allowance for loan losses at an adequate level based on the inherent risks in the loan portfolio. The provision for unfunded lending commitments is used to maintain the reserve for unfunded lending commitments (“RULC”) at an adequate

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level based on the inherent risks associated with such commitments. In determining adequate levels of the allowance and reserve, we perform periodic evaluations of our various loan portfolios, the levels of actual charge-offs,charge-

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offs, credit trends, and external factors. See Note 6 of the Notes to Consolidated Financial Statements and “Credit Risk Management” on page 69 for more information on how we determine the appropriate level for the allowance for loan and lease losses (“ALLL”) and the RULC.
During the past few years, we have experienced a significant improvement in credit quality metrics for loans outside the oil and gas-related portfolio; however, in recent quarters we have experienced deterioration in various credit quality metrics primarily associated with oil and gas-related loans. The year-to-date difference between 2016 and 2015 shows an increase in the provision of $77.6$78.1 million, which is mainly due to incurred losses in the oil and gas-related portfolio. For the second quarterfirst nine months of 2016, the Company had net charge-offs of $37$114 million in its oil and gas-related portfolio, compared with $36 million in the first quarter.portfolio. Non-oil and gasgas-related loans had net charge-offs were $1recoveries of $10 million for the first sixnine months of 2016 due to recoveries.2016. Overall, net charge-offs for the secondthird quarter 2016 were $38$30 million, updown slightly from $11$31 million for the secondthird quarter of 2015. The increase is predominantlyImprovement in the credit quality of the non-oil and gas-related portfolio, which represents 95% of all lending assets, has effectively compensated for any credit deterioration due to credit deterioration in the oil and gas-related portfolio. We expect the quarterly provision for credit losses, which includes the provision for both funded loans and unfunded loan commitments, to be stable relative to the second quarter, assuming no significant adverse change in market conditions.gas sector.
Nonperforming assets were $556$587 million at JuneSeptember 30, 2016, compared with $357 million at December 31, 2015. The ratio of nonperforming assets to loans and leases and OREO increased to 1.30%1.37% at JuneSeptember 30, 2016 from 0.87% at December 31, 2015; however, this figure declined2015, and increased slightly from 1.33%1.30% at March 31,June 30, 2016. Classified loans increased to $1.6 billion at JuneSeptember 30, 2016 from $1.4 billion at December 31, 2015. Classified loans current as to principal and interest payments, were 88.8%89.1% at JuneSeptember 30, 2016, compared towith 86.5% at December 31, 2015. Classified loans are loans with well-defined credit weaknesses that are risk graded substandard or doubtful.
The ALLL increaseddecreased by approximately $2$9 million since December 31, 2015. In addition toLoan growth, change in the loan growth,portfolio mix, the decline in credit quality and the increase of charge-offs in the oil and gas-related portfolio, offset by improvements in the rest of the funded loan portfolio, resulted in a provision of $18.8 million in the third quarter of 2016, compared with $34.5 million in the second quarter of 2016 compared with $42.1and $18.3 million in the first quarter of 2016 and $0.6 million in the secondthird quarter of 2015. We continueOver the next four quarters, we expect the quarterly provision for credit losses, which includes the provision for both funded loans and unfunded loan commitments, to exercise caution with regardbe generally stable relative to the appropriate levelfirst and second quarters of the allowance for loan losses, given the state of the economy and the current volatility2016, assuming no significant change in oil and gas prices and the potential for oil and gas prices to remain low for an extended period of time.market conditions. Refer to the “Oil and Gas-Related Exposure” section on page 70 for more information.
During the secondthird quarter of 2016, we recorded a $(4.2)$(3.2) million provision for unfunded lending commitments compared towith a $(5.8)$(4.2) million in the firstsecond quarter of 2016 and $(2.3)$1.4 million in the secondthird quarter of 2015. The negative provision recognized in the secondthird quarter of 2016 is primarily due to improvement, outside of the oil and gas-related portfolio, in portfolio-specificimproved credit quality metrics, sustained improvement in broader economy and credit quality indicators, and changes in the portfolio mix.assessments related to these obligations. From quarter to quarter, the provision for unfunded lending commitments may be subject to sizable fluctuations due to changes in the timing and volume of loan commitments, originations, funding, and changes in credit quality.
Noninterest Income
Noninterest income represents revenues we earn for products and services that have no associated interest rate or yield. For the secondthird quarter of 2016 noninterest income was $125.7increased to $144.9 million, compared to $(4.7)with $125.9 million for the secondthird quarter of 2015. Year-to-date noninterest income also increased to $242.5$387.4 million for the first sixnine months of 2016 from $112.7$238.6 million for the same prior year period. The major driver for the increase in noninterest income between 2016 and 2015for the year-to-date increase when compared with the same prior year period was the sale of our remaining CDOcollateralized debt obligation (“CDO”) portfolio during the second quarter of 2015, which resulted in a pre-tax loss of $136.8 million. Factors impacting changesNoninterest income improved across almost all categories in noninterest incomethe third quarter of 2016 when compared with the third quarter of 2015; however the largest contributing factors are described subsequently.
Other service charges, commissions, and fees, which are comprised of loan fees, ATM fees, insurance commissions, bankcard merchant fees, debit and credit card interchange fees, cash management fees, lending commitment fees, syndication and servicing fees, and other miscellaneous fees, increased by 11.4%12.9% to $51.9$54.1 million in the secondthird quarter of 2016

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from $46.6$48.0 million for the secondthird quarter of 2015. The main increases relate to higher credit card interchange fees, fees generated on sales of interest rate swaps to clients, and exchange and other fees.
Dividends

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Equity securities gains increased to $8.4 million in the third quarter of 2016 from $3.6 million in the third quarter of 2015. Gains or losses on equity securities may increase or decrease due to market factors or the performance of individual securities. During the current quarter, the gains were recognized due to fair value adjustments relating to one equity investment in the Company’s consolidated SBIC investments. We do not expect these gains to recur.
Significant items impacting noninterest income for the first nine months of 2016 not previously discussed include dividends and other investment income, which declined by $3.1$7.3 million, or 33.4%26.7%, to $6.2$19.9 million for the second quarter of 2016 from $9.3$27.2 million for the same prior year period. The majorityMuch of the change stemmed from consolidating seven banking charters into one. Consequently, our stock ownership with the Federal Home Loan Banking (“FHLB”) system has decreased $58 millionsignificantly since December 31, 2015. We expect our FHLB dividends to decline by approximately $7 million annually, but only $5 million in 2016 due to the timing of the FHLB stock redemptions. Due to the charter consolidation, where our state-chartered banks had not previously needed to hold stock in the Federal Reserve, our stock with the Federal Reserve remained stable between the firstsecond and secondthird quarters of 2016 but has increased by $58 million from December 31, 2015. However, due to the passage of the “Fixing of America’s Surface Transportation” Act, which reduced dividends on Federal Reserve stock, we expect income related to these dividends to decline by approximately $4 million in 2016 compared with 2015.
FixedYear-to-date fixed income securities gains increased to $25$92 thousand in the second quarter of 2016 from a loss of $138.4$138.8 million infor the second quarter ofsame period in 2015. The large increase was due to losses from the sale of the remaining securities in our CDO portfolio.portfolio during the second quarter of 2015.
Other noninterest income for the first nine months of 2016 decreased to $1.1by $3.1 million in second quarter 2016 from $5.7 million incompared with the prior year period. The decrease of $4.6 million was primarilycomparable period as a result of a gain on sale of a branch in California that occurred in the second quarter of 2015 and also a reduction of Small Business Administration (“SBA”) interest-only strip income.
The only other significant item impacting noninterest income for the first six months of 2016 not previously discussed is income from equity securities. Equity securities gains for the first six months of 2016 decreased by $6.0 million, compared to the first six months of 2015. The decrease is primarily related to a lower amounts of gains related to our SBIC equity investments.
During the first quarter of 2016 we reclassified bankcard rewards expense from non-interest expense into non-interest income in order to offset the associated revenue (interchange fees) to align with industry practice. This reclassification within other service charges, commission and fees lowered noninterest income (and also decreased other noninterest expense by the same amount). For comparative purposes we also reclassified prior period amounts. This reclassification had no impact on net income.
Noninterest Expense
Noninterest expense decreasedincreased by $17.1$12.0 million, or 4.3%3.1%, to $381.9$403.3 million in the secondthird quarter of 2016, compared towith the same prior year period. The decrease in noninterest expense was primarily caused by a decrease in seasonal salaries and employee benefits. Year-to-date noninterest expense also decreased to $777.5by $2.5 million forbetween the first sixnine months of 2016 from $792.0 million forand the same prior year period. The major driver forExpense increases were driven mainly by the higher cost of labor and several operating, but typically non-recurring items. Offsetting some of this decrease in the year-to-date variance, in additionpressure were reductions due to those mentioned for the current quarter, was a reductioncost cutting efforts and reductions in the provision for unfunded lending commitments, resulting from improvements inwhich were due to credit quality improvement outside the non-oiloil and gas-related portfolio as well as some other less impactful items.portfolio. We are committed to maintaining annual noninterest expense below $1.58 billion. The following are major components of noninterest expense line items impacting the secondthird quarter change.
Salaries and employee benefits were $241.3Occupancy expense increased $4.1 million or 13.8% in the secondthird quarter of 2016 compared with the third quarter of 2015. The major cause of the increase related to $251.1an adjustment relating to the alignment of a single back-office operating environment earlier in the year.
The provision for unfunded lending commitments decreased $4.6 million from $1.4 million to $(3.2) million for the same prior year period. This decrease of $9.8 million, or 3.9%, over the prior year period was mainly caused by the timing of approximately $6 million in annual share-based compensation awards, which have historically been granted in the second quarter, but were granted in the first quarter of 2016. Base salaries for the second quarter of 2016 decreased by $2.8 million from the same prior year period as a result of the reduced number of full-time equivalent employees and severance accrual. The number of full-time equivalent employees at June 30, 2016 was 10,064 compared to 10,265 as of June 30, 2015.
Other noninterest expense did not change significantly either between the secondthird quarters of 2015 and 2016 respectively. As discussed previously, credit quality improvements outside the oil and 2015 or between the first six months of the same years. Although there were severalgas-related portfolio have outpaced deterioration within that smaller offsetting balances within other noninterest expense, no significant changes were noted during the comparative periods. Other noninterest expense

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includes supplies, travel, ATM, telecommunications, certain bankcard expenses,portfolio. Commitments on oil and other general operating expenses.gas-related loans also decreased, resulting in an improved commitment base and a lower provision.
FDIC premium expense rose by $1.0increased $3.2 million inor 37.3% between the secondthird quarter of 2016 compared toand the same prior year period due to a higher deposit base and changes in credit quality metrics. We anticipate ourthe FDIC premium expense to rise further in the second half of 2016 due to changes in the premium calculation that is expected to become effective as of July 1, 2016.surcharge. The FDIC approved a change in deposit insurance assessments that implements a Dodd-Frank Act provision requiring banks with over $10 billion in assets to be responsible for recapitalizing the FDIC insurance fund to 1.35% of insured deposits by the end of 2018,over an eight quarter period, after it reaches a 1.15% reserve ratio. Any additional premiums required inThe 1.15% threshold was reached at the end of the second quarter and the premium has been effective for the entire third quarter of 2016, as a result ofthough this assessment will be partiallyis somewhat offset by a reduction in the Company’s overall rate resulting from the consolidation of the individual bank charters.
The only otherOther noninterest expense was $60.8 million in the third quarter of 2016, compared with $51.4 million for the same prior year period. This increase of $9.4 million, or 18.2%, between the periods was primarily due to the alignment

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of a single back-office operating environment, resolution of certain legal matters, and the release of a reserve in the third quarter of 2015 that did not recur in 2016.
One significant item impacting noninterest expense for the first sixnine months of 2016 not previously discussed is the provision for unfunded lending commitments, which decreased $8.9 million, betweenwas salaries and employee benefits expense. For the first six months of 2015 and the same period in 2016. Even though credit quality deteriorated in the oil and gas-related portfolio for the first sixnine months of 2016 our expense increased $5.3 million when compared towith the same prior year period, improvementperiod. In general, labor costs have risen slightly despite a reduction of 251 full-time equivalents over the past twelve months, partially due to the hiring of more skilled employees as part of our core transformation efforts and an increase in risk and compliance staff. Retirement expense also increased $2.6 million from a partial settlement loss due to increased lump sum distributions in the restCompany’s pension plan during the third quarter of 2016. Participants in the pension plan can elect lump sum distributions after retirement at their discretion. Because the Company has frozen its participation and benefit accruals for the pension plan, and the expected interest cost of the portfolio has more than offset this decline andplan is decreasing, future lump sum distributions may exceed the provision has decreased accordingly.expected interest cost which would result in partial settlement losses in future periods. The Company also reduced its incentive accrual for senior management compensation in the third quarter of 2016.
As discussed in the executive summary section of this document, our goal is to hold adjusted noninterest expense to less than $1.58 billion in 2016. For the first sixnine months of 2016 adjusted noninterest expense was $780.3 million,$1.18 billion, reflecting our commitment to achieve this goal. To arrive at adjusted noninterest expense, GAAP noninterest expense is adjusted to exclude certain expense items which are the same as those items excluded in arriving at the efficiency ratio (see “GAAP to Non-GAAP Reconciliations” on page 90 for more information regarding the calculation of the efficiency ratio).
Income Taxes
Income tax expense for the secondthird quarter of 2016 was $60.2$64.7 million compared to $5.5with $40.8 million for the same prior year period in 2015. The effective income tax rates were 34.6%33.7% and 28.3%28.8% for the secondthird quarter of 2016 and 2015, respectively. The tax rates for the secondthird quarter of 2016 and 2015 were benefited primarily by the non-taxability of certain income items. The tax rate for the secondthird quarter of 2016 was higher compared towith the same period in 2015 due to a decrease in the proportion of nontaxable items relativeinvestments in tax credit projects related to pretax income for that period.alternative energy and research and development initiatives. On a year-to-date basis, the 2016 tax rate of 33.2%33.4% was lowerhigher than the 2015 tax rate of 34.8%32.0%. The year-to-date tax rates for 2016 and 2015 were similarly impacted by the above-discussed permanent items. However, the 2016 effective tax rate was further benefited by the release of various state uncertain tax positions. We expect our effective tax rate to be in the range of 34% to 36%35% for the next sixthree months.
We had a net deferred tax asset (“DTA”) balance of $164$170 million at JuneSeptember 30, 2016, compared towith $203 million at December 31, 2015. The net decrease in the DTA resulted primarily from the payout of accrued compensation and the reduction of unrealized losses in OCI related to securities. The decrease in the deferred tax liabilities, which related to premises and equipment, FHLB stock dividends and the deferred gain on a prior period debt exchange, offset some of the overall decrease in DTA.
Preferred Dividends
Our preferred dividends decreased $1.5$6.4 million in the secondthird quarter of 2016 when compared with the secondthird quarter of 2015 and $6.6$13.0 million for the first sixnine months of 2016 when compared with the same prior year period. We completed a tender offer in the fourth quarter of 2015 to purchase $176 million of our Series I preferred stock. We also completed a tender offer in the second quarter of 2016 to purchase $119 million of preferred stock. The total one-time reduction to net earnings applicable to common shareholders associated with the preferred stock redemption in the second quarter of 2016 was $9.8 million. At JuneSeptember 30, 2016 the balance of preferred stock was $710 million compared towith $828 million at December 31, 2015. Preferred dividends are expected to be $10.4 million for the third quarter of 2016 and first quarter of 2017 and are expected to be $12.4 million for the fourth quarter of 2016 and the second quarter of 2017 and $10.4 million for the first quarter of 2017.
Our efficiency initiative announced on June 1, 2015 included a reduction of approximately $20 million of preferred stock dividends on an annual basis, which has now been achieved. On June

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29, 2016, the Board of Governors of the Federal Reserve System notified us that the Federal Reserve did not object to our board-approved 2016 capital plan, which included redemption of up to $144 million of our preferred stock overby the next four quarters.end of the second quarter of 2017.

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BALANCE SHEET ANALYSIS
Interest-Earning Assets
Interest-earning assets are those assets that have interest rates or yields associated with them. One of our goals is to maintain a high level of interest-earning assets relative to total assets while keeping nonearning assets at a minimum. Interest-earning assets consist of money market investments, securities, loans, and leases.
The schedulereferred to in our discussion of net interest income includes the average balances of our interest-earning assets, the amount of revenue generated by them, and their respective yields. Another goal is to maintain a higher-yielding mix of interest-earning assets, such as loans, relative to lower-yielding assets, such as money market investments or securities, while maintaining adequate levels of highly liquid assets. As a result of slower economic growth accompanied by moderate loan demand in previous periods, the Company’s initiative to maintain a higher-yielding mix of interest-earning assets caused us to deploy excess funds into highly liquid securities.
The schedulereferred to in our discussion of net interest income includes the average balances of our interest-earning assets, the amount of revenue generated by them, and their respective yields.
Average interest-earning assets were $55.4$55.7 billion for the first sixnine months of 2016, compared to $53.5with $53.9 billion for the first sixnine months of 2015. Average interest-earning assets as a percentage of total average assets for the first sixnine months of 2016 and 2015 were 93.7%, compared to 93.6% in the corresponding prior year period..
Average loans were $41.6$41.9 billion and $40.2$40.1 billion for the first sixnine months of 2016 and 2015, respectively. Average loans as a percentage of total average assets for the first sixnine months of 2016 were 70.2%70.4%, compared to 70.3%with 69.7% in the corresponding prior year period.
Average money market investments, consisting of interest-bearing deposits, federal funds sold, and security resell agreements, decreased by 44.2%51.2% to $4.6$4.1 billion for the first sixnine months of 2016, compared to $8.2with $8.4 billion for the first sixnine months of 2015. Average securities increased by 82.7%81.3% for the first sixnine months of 2016, compared towith the first sixnine months of 2015. Average total deposits increased by 4.1%3.9% resulting from an increase in noninterest-bearing deposits, interest-on-checking, savings deposits and money marketsavings deposits.
Investment Securities Portfolio
We invest in securities to actively manage liquidity and interest rate risk, in addition to generating revenues for the Company. Refer to the “Liquidity Risk Management” section on page 83 for additional information on management of liquidity and funding and compliance with Basel III and Liquidity Coverage Ratio (“LCR”) requirements. The following schedule presents a profile of our investment securities portfolio. The amortized cost amounts represent the original cost of the investments, adjusted for related accumulated amortization or accretion of any yield adjustments, and for impairment losses, including credit-related impairment. The estimated fair value measurement levels and methodology are discussed in Note 10 of the Notes to Consolidated Financial Statements.

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INVESTMENT SECURITIES PORTFOLIO
June 30, 2016 December 31, 2015September 30, 2016 December 31, 2015
(In millions)
Par value 
Amortized
cost
 
Estimated
fair
value
 Par value 
Amortized
cost
 
Estimated
fair
value
Par value 
Amortized
cost
 
Estimated
fair
value
 Par value 
Amortized
cost
 
Estimated
fair
value
Held-to-maturity                      
Municipal securities$714
 $713
 $721
 $546
 $546
 $552
$716
 $715
 $718
 $546
 $546
 $552
714
 713
 721
 546
 546
 552
716
 715
 718
 546
 546
 552
Available-for-sale                      
U.S. Government agencies and corporations:                      
Agency securities1,669
 1,668
 1,696
 1,233
 1,232
 1,233
1,835
 1,834
 1,857
 1,233
 1,232
 1,233
Agency guaranteed mortgage-backed securities4,686
 4,869
 4,911
 3,810
 3,965
 3,936
5,241
 5,439
 5,474
 3,810
 3,965
 3,936
Small Business Administration loan-backed securities1,884
 2,093
 2,089
 1,741
 1,933
 1,931
1,973
 2,193
 2,186
 1,741
 1,933
 1,931
Municipal securities597
 660
 673
 387
 417
 419
691
 769
 778
 387
 417
 419
Other debt securities25
 25
 22
 25
 25
 23
25
 25
 23
 25
 25
 23
8,861
 9,315
 9,391
 7,196
 7,572
 7,542
9,765
 10,260
 10,318
 7,196
 7,572
 7,542
Money market mutual funds and other86
 86
 86
 101
 101
 101
40
 40
 40
 101
 101
 101
8,947
 9,401
 9,477
 7,297
 7,673
 7,643
9,805
 10,300
 10,358
 7,297
 7,673
 7,643
Total$9,661
 $10,114
 $10,198
 $7,843
 $8,219
 $8,195
$10,521
 $11,015
 $11,076
 $7,843
 $8,219
 $8,195
The amortized cost of investment securities at JuneSeptember 30, 2016 increased by 23.1%34.0% from the balances at December 31, 2015, primarily due to purchases of agency guaranteed mortgage-backed securities. There were additional increases in agency securities, municipal securities, and Small Business Administration (“SBA”) loan-backed securities.
The investment securities portfolio includes $453$494 million of net premium almost exclusively from SBA loan-backed securities and agency guaranteed mortgage-backed securities.that is distributed across various asset classes as illustrated in the preceding schedule. Recent purchases of these securities have occurred at a premium to the respective par amount. The amortization of these premiums each quarter is dependent upon borrower prepayment behavior. Changes in actual prepayments and prepayment assumptions will result in changes to the amount of premium amortization recognized in net interest income. Premium amortization for the secondfirst nine months of 2016 was approximately $70 million compared with approximately $33 million for 2015. Premium amortization for the third quarter of 2016 was approximately $24$27 million, compared towith approximately $19$24 million in the firstsecond quarter of 2016, and is included in portfolio yields. The increased premium amortization is due to both an increased amount of agency guaranteed mortgage-backed securities and SBA loan-backed securities and changes in prepayment rates of the underlying loans.
As of JuneSeptember 30, 2016, under the GAAP fair value accounting hierarchy, 0.9%0.4% of the $9.5$10.4 billion fair value of the AFS securities portfolio was valued at Level 1, 99.1%99.6% was valued at Level 2, and there were no Level 3 AFS securities. At December 31, 2015, 0.8% of the $7.6 billion fair value of AFS securities portfolio was valued at Level 1, 99.2% was valued at Level 2, and there were no Level 3 AFS securities. See Note 10 of the Notes to Consolidated Financial Statements for further discussion of fair value accounting.
Exposure to State and Local Governments
We provide multiple products and services to state and local governments (referred together as “municipalities”), including deposit services, loans, and investment banking services, and we invest in securities issued by the municipalities.

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The following schedule summarizes our exposure to state and local municipalities:
MUNICIPALITIES
(In millions)June 30,
2016
 December 31,
2015
September 30,
2016
 December 31,
2015
          
Loans and leases $756
 $676
  $753
 $676
 
Held-to-maturity – municipal securities 713
 546
  715
 546
 
Available-for-sale – municipal securities 673
 419
  778
 419
 
Trading account – municipal securities 109
 33
  97
 33
 
Unfunded lending commitments 118
 119
  109
 119
 
Total direct exposure to municipalities $2,369
 $1,793
  $2,452
 $1,793
 
At JuneSeptember 30, 2016, one municipal loan with a balance of $0.9 million was on nonaccrual. A significant amount of the municipal loan and lease portfolio is secured by real estate and equipment, and 90%90.1% of the outstanding credits were originated by CB&T, Zions Bank, Vectra, and Amegy.NBAZ. Growth in municipal exposures came primarily from increases in the municipal AFS securities portfolio consistent with our initiative to move available funds to higher-yielding investments. AFS securities generally consist of securities with investment-grade ratings from one or more major credit rating agencies. HTM securities consist of unrated bonds issued by small local government entities. Prior to purchase, the issuers of municipal securities are evaluated by the Company for their creditworthiness, and some of the securities are guaranteed by third parties.
Foreign Exposure and Operations
Our credit exposure to foreign sovereign risks and total foreign credit exposure is not significant. We also do not have significant foreign exposure to derivative counterparties. We have foreign operations as a result of our branch in Grand Cayman, Grand Cayman Islands B.W.I. While deposits in this branch are not subject to Federal Reserve Board (“FRB”) reserve requirements, there are no federal or state income tax benefits to the Company or any customers as a result of these operations. Foreign deposits were $118$119 million at JuneSeptember 30, 2016 and $294 million at December 31, 2015.
Loan Portfolio
For the first sixnine months of 2016 and 2015, average loans accounted for 70.2%70.4% and 70.3%69.7%, respectively, of total average assets. As presented in the following schedule, commercial and industrial loans were the largest category and constituted 32.4%31.8% of our loan portfolio at JuneSeptember 30, 2016.

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LOAN PORTFOLIO
June 30, 2016 December 31, 2015September 30, 2016 December 31, 2015
(Amounts in millions)Amount 
% of
total loans
 Amount 
% of
total loans
Amount 
% of
total loans
 Amount 
% of
total loans
Commercial:              
Commercial and industrial$13,757
 32.4% $13,211
 32.5%$13,543
 31.8% $13,211
 32.5%
Leasing426
 1.0
 442
 1.1
439
 1.0
 442
 1.1
Owner occupied6,989
 16.4
 7,150
 17.6
6,889
 16.2
 7,150
 17.6
Municipal756
 1.8
 676
 1.7
753
 1.8
 676
 1.7
Total commercial21,928
 51.6
 21,479
 52.9
21,624
 50.8
 21,479
 52.9
Commercial real estate:              
Construction and land development2,088
 4.9
 1,842
 4.5
2,147
 5.0
 1,842
 4.5
Term9,230
 21.7
 8,514
 21.0
9,303
 21.9
 8,514
 21.0
Total commercial real estate11,318
 26.6
 10,356
 25.5
11,450
 26.9
 10,356
 25.5
Consumer:              
Home equity credit line2,507
 5.9
 2,417
 5.9
2,581
 6.1
 2,417
 5.9
1-4 family residential5,680
 13.4
 5,382
 13.2
5,785
 13.6
 5,382
 13.2
Construction and other consumer real estate419
 1.0
 385
 0.9
453
 1.1
 385
 0.9
Bankcard and other revolving plans460
 1.1
 444
 1.1
458
 1.1
 444
 1.1
Other189
 0.4
 187
 0.5
189
 0.4
 187
 0.5
Total consumer9,255
 21.8
 8,815
 21.6
9,466
 22.3
 8,815
 21.6
Total net loans$42,501
 100.0% $40,650
 100.0%$42,540
 100.0% $40,650
 100.0%
Loan portfolio growth during the first sixnine months of 2016 was widespread across loan products and geography with particular strength in CRE term, 1-4 family residential, and commercial and industrial loans. During the second quarter of 2016, the Company purchased $104 million of 1-4 family residential loans. The impact of these increases was partially offset by decreases in commercial owner occupied loans.
Commercial owner occupied loans declined primarily due to the continued runoff and attrition of the National Real Estate portfolio at Zions Bank. The National Real Estate business is a wholesale business that depends on loan referrals from other community banking institutions. Due to generally soft loan demand nationally, many community banking institutions are retaining, rather than selling, their loan production.
We continue to emphasize loan growth in 1-4 family residential and commercial and industrial loans. Although we have experienced strong growth in CRE term CRE,loans, internal concentration limits and risk management practices may reduce the growth rate in future quarters.
Other Noninterest-Bearing Investments
As part of the Company’s initiative to consolidate its charters into a single charter, the Company has shares in a single FHLB (Des Moines). Historically, each affiliate bank held shares in different FHLBs, but all stock in the other FHLBs has been redeemed. Our investment balance in Federal Reserve stock is expected to remain relatively stable from where it currently sits at JuneSeptember 30, 2016. The $58 million increase is because several state-chartered affiliate banks were not required to hold stock with the FRB. Following consolidation, the capital requirements for ZB, N.A. increased. The following schedule sets forth the Company’s other noninterest-bearing investments.

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OTHER NONINTEREST-BEARING INVESTMENTS
(In millions)June 30,
2016
 December 31,
2015
September 30,
2016
 December 31,
2015
          
Bank-owned life insurance $492
 $486
  $494
 $486
 
Federal Home Loan Bank stock 10
 68
  40
 68
 
Federal Reserve stock 181
 123
  181
 123
 
Farmer Mac stock 27
 25
  32
 25
 
SBIC investments 120
 113
  129
 113
 
Non-SBIC investment funds 13
 24
  14
 24
 
Others 8
 9
  4
 9
 
 $851
 $848
  $894
 $848
 
Premises and Equipment
Premises and equipment increased $50$81 million, or 5.5%9.0%, during the first sixnine months of 2016 primarily due to capitalized costs associated with the development of a new corporate facility for Amegy Bank in Texas, and additionally from the capitalization of eligible costs related to the development of new lending, deposit and reporting systems.
Deposits
Deposits, both interest-bearing and noninterest-bearing, are a primary source of funding for the Company. Average total deposits for the first sixnine months of 2016 increased by 4.1%3.9%, compared towith the first sixnine months of 2015, with average interest-bearing deposits increasing by 3.1% and average noninterest-bearing deposits increasing by 5.3%4.9%. The increaseincreases in interest and noninterest-bearing deposits were driven by increases in both personal and business customer balances. The average interest rate paid for interest-bearing deposits was 1 bp lower during the first sixnine months of 2016, compared towith the first sixnine months of 2015.
Deposits at JuneSeptember 30, 2016, excluding time deposits $100,000 and over and brokered deposits, decreased by 0.7%, or $361 million,increased slightly to $49.3 billion from $49.2 billion at December 31, 2015. The decreaseincrease was mainly due to an increase in noninterest-bearing deposits offset by a decrease in interest-bearing domestic savings and money market deposits and foreign deposits.
Demand and savings and money market deposits were 95.1%94.8% and 95.2% of total deposits at JuneSeptember 30, 2016 and December 31, 2015, respectively. In the normal course of business we utilizedutilize broker deposits for our deposit funding mix. At JuneSeptember 30, 2016 and December 31, 2015, total deposits included $451$681 million and $119 million, respectively, of brokered deposits.
See “Liquidity Risk Management” on page 83 for additional information on funding and borrowed funds.
RISK ELEMENTS
Since risk is inherent in substantially all of the Company’s operations, management of risk is an integral part of its operations and is also a key determinant of its overall performance. The Board of Directors has appointed a Risk Oversight Committee (“ROC”) that consists of appointed Board members who oversee the Company’s risk management processes. The ROC meets on a regular basis to monitor and review Enterprise Risk Management (“ERM”) activities. As required by its charter, the ROC performs oversight for various ERM activities and approves ERM policies and activities as detailed in the ROC charter.
Management applies various strategies to reduce the risks to which the Company’s operations are exposed, including credit, interest rate and market, liquidity, and operational risks. These risks are overseen by the various management committees of which the Enterprise Risk Management Committee (“ERMC”) is the focal point for the monitoring and review of enterprise risk.

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Credit Risk Management
Credit risk is the possibility of loss from the failure of a borrower, guarantor, or another obligor to fully perform under the terms of a credit-related contract. Credit risk arises primarily from our lending activities, as well as from off-balance sheet credit instruments.
The Board of Directors, through the ROC, is responsible for approving the overall credit policies relating to the management of the credit risk of the Company. In addition, the ROC oversees and monitors adherence to key credit policies and the credit risk appetite which isas defined in the Risk Appetite Framework. Additionally, the Board has established the Credit Administration Committee, (“CAC”), chaired by the Chief Credit Officer and consisting of members of management, to which it has delegated the responsibility for managing credit risk for the company.Company and approving changes to the Company’s credit policies.
Centralized oversight of credit risk is provided through credit policies, credit administration,risk management, and credit examination functions at the Parent.functions. We separate the lending function from the credit administrationrisk management function, which strengthens control over, and the independent evaluation of, credit activities. Formal loancredit policies and procedures provide the Company with a framework for consistent underwriting and a basis for sound credit decisions at the local banking affiliate level. In addition, we have a well-defined set of standards for evaluating our loan portfolio, and we utilize a comprehensive loan risk grading system to determine the risk potential in the portfolio. Furthermore, an independentthe internal credit examination department periodically conducts examinations of the Company’s lending departments.departments and credit activities. These examinations are designed to review credit quality, adequacy of documentation, appropriate loan risk grading administration, and compliance with lendingcredit policies. Credit examination reports are submitted to management and to the ROC on a regular basis. New, expanded, or modified products and services, as well as new lines of business, are approved by the New ProductInitiative Review Committee.
Both the credit policy and the credit examination functions are managed centrally. Emphasis is placed on strong underwriting standards and early detection of potential problem credits in order to develop and implement action plans on a timely basis to mitigate any potential losses.
Our credit risk management strategy includes diversification of our loan portfolio. We attempt to avoid the risk of an undue concentration of credits in a particular collateral type or with an individual customer or counterparty. Generally, our loan portfolio is well diversified; however, due to the nature of our geographical footprint, there are certain significant concentrations primarily in CRE and oil and gas-related lending. We have adopted and adhere to concentration limits on various types of CRE lending, particularly construction and land development lending, leveraged lending, municipal lending, and oil and gas-related lending. All of these limits are continually monitored and revised as necessary. The recent growth in construction and land development loan commitments is within the established concentration limits. Our business activity is primarily with customers located within the geographical footprint of our banking affiliates.
Of note, as we continue to monitor our concentration risk, the composition of our loan portfolio has changed. Oil and gas-related loans represent 5.4% of the total loan portfolio at September 30, 2016, compared with 6.5% at December 31, 2015, and total commercial loans are 50.8% of the total portfolio compared with 52.8% for the same periods. Consumer loans have grown to represent 22.3% of the total loan portfolio at September 30, 2016, compared with 21.7% at December 31, 2015.
Government Agency Guaranteed Loans
We participate in various guaranteed lending programs sponsored by U.S. government agencies, such as the SBA, FDIC, Federal Housing Authority, Veterans’ Administration, Export-Import Bank of the U.S., and the U.S. Department of Agriculture. At JuneSeptember 30, 2016, the guaranteed portion of these loans was $442$428 million. Most of these loans were guaranteed by the SBA.

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The following schedule presents the composition of government agency guaranteed loans.
GOVERNMENT GUARANTEES
(Amounts in millions)June 30, 2016 
Percent
guaranteed
 December 31, 2015 
Percent
guaranteed
                
Commercial $545
   75%   $536
   76% 
Commercial real estate 18
   77
   17
   77
 
Consumer 19
   91
   16
   90
 
Total loans $582
   76
   $569
   76
 

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(Amounts in millions)September 30, 2016 
Percent
guaranteed
 December 31, 2015 
Percent
guaranteed
                
Commercial $525
   76%   $536
   76% 
Commercial real estate 18
   76
   17
   77
 
Consumer 18
   91
   16
   90
 
Total loans $561
   76
   $569
   76
 
Commercial Lending
The following schedule provides selected information regarding lending concentrations to certain industries in our commercial lending portfolio.
COMMERCIAL LENDING BY INDUSTRY GROUP
June 30, 2016 December 31, 2015September 30, 2016 December 31, 2015
(Amounts in millions)Amount Percent Amount PercentAmount Percent Amount Percent
              
Real estate, rental and leasing$2,492
 11.4% $2,355
 11.0%$2,527
 11.7% $2,355
 11.0%
Manufacturing2,345
 10.7
 2,338
 10.9
2,213
 10.2
 2,338
 10.9
Retail trade2,090
 9.5
 2,025
 9.4
2,120
 9.8
 2,025
 9.4
Mining, quarrying and oil and gas extraction1,681
 7.7
 1,820
 8.5
1,505
 7.0
 1,820
 8.5
Healthcare and social assistance1,475
 6.8
 1,361
 6.3
Wholesale trade1,616
 7.4
 1,644
 7.6
1,464
 6.8
 1,644
 7.6
Healthcare and social assistance1,428
 6.5
 1,361
 6.3
Finance and insurance1,394
 6.4
 1,325
 6.2
1,443
 6.7
 1,325
 6.2
Transportation and warehousing1,239
 5.7
 1,219
 5.7
1,296
 6.0
 1,219
 5.7
Construction1,170
 5.3
 1,087
 5.1
1,084
 5.0
 1,087
 5.1
Professional, scientific and technical services967
 4.4
 860
 4.0
Accommodation and food services948
 4.3
 964
 4.5
942
 4.4
 964
 4.5
Other services (except Public Administration)880
 4.0
 862
 4.0
872
 4.0
 862
 4.0
Professional, scientific and technical services846
 3.9
 860
 4.0
Utilities 1
798
 3.6
 775
 3.6
813
 3.8
 775
 3.6
Other 2
2,880
 13.1
 2,844
 13.2
3,024
 13.9
 2,844
 13.2
Total$21,928
 100.0% $21,479
 100.0%$21,624
 100.0% $21,479
 100.0%
1 
Includes primarily utilities, power, and renewable energy.
2 
No other industry group exceeds 3%.
Oil and Gas-Related Exposure
Various industries represented in the previous schedule, including mining, quarrying and oil and gas extraction, manufacturing, and transportation and warehousing, contain certain loans we categorize as oil and gas-related. At JuneSeptember 30, 2016 and December 31, 2015, we had approximately $4.4$4.1 billion and $4.8 billion of total oil and gas-related credit exposure, respectively. The distribution of oil and gas-related loans by customer market segment is shown in the following schedule:

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OIL AND GAS-RELATED EXPOSURE 1 
(Amounts in millions) June 30,
2016
 March 31, 2016 December 31, 2015 September 30, 2015 June 30, 2015 September 30,
2016
 June 30, 2016 March 31, 2016 December 31, 2015 September 30, 2015
Loans and leases                    
Upstream – exploration and production $831
 $859
 $817
 $924
 $954
 $752
 $831
 $859
 $817
 $924
Midstream – marketing and transportation 658
 649
 621
 626
 589
 623
 658
 649
 621
 626
Downstream – refining 131
 129
 127
 124
 131
 123
 131
 129
 127
 124
Other non-services 45
 43
 44
 55
 75
 44
 45
 43
 44
 55
Oilfield services 712
 734
 784
 825
 879
 596
 712
 734
 784
 825
Oil and gas service manufacturing 193
 229
 229
 251
 255
 176
 193
 229
 229
 251
Total loan and lease balances 2
 2,570
 2,643
 2,622
 2,805
 2,883
 2,314
 2,570
 2,643
 2,622
 2,805
Unfunded lending commitments 1,823
 2,021
 2,151
 2,341
 2,385
 1,784
 1,823
 2,021
 2,151
 2,341
Total oil and gas credit exposure $4,393
 $4,664
 $4,773
 $5,146
 $5,268
 $4,098
 $4,393
 $4,664
 $4,773
 $5,146
Private equity investments $6
 $12
 $13
 $17
 $18
 $6
 $6
 $12
 $13
 $17
Credit quality measures 2
                    
Criticized loan ratio 37.8% 37.5% 30.3% 23.2% 20.3% 41.8% 37.8% 37.5% 30.3% 23.2%
Classified loan ratio 31.5% 26.9% 19.7% 15.7% 11.3% 33.1% 31.5% 26.9% 19.7% 15.7%
Nonaccrual loan ratio 11.1% 10.8% 2.5% 3.0% 2.3% 15.0% 11.1% 10.8% 2.5% 3.0%
Current nonaccrual loan ratio 89.2% 90.6% 71.2% 45.2% 87.9%
Ratio of nonaccrual loans that are current 87.3% 89.2% 90.6% 71.2% 45.2%
Net charge-off ratio, annualized 3
 5.8% 5.4% 3.7% 2.4% % 7.1% 5.8% 5.4% 3.7% 2.4%
1 
Because many borrowers operate in multiple businesses, judgment has been applied in characterizing a borrower as oil and gas-related, including a particular segment of oil and gas-related activity, e.g., upstream or downstream; typically, 50% of revenues coming from the oil and gas sector is used as a guide.
2 Total loan and lease balances and the credit quality measures at JuneSeptember 30, 2016 do not include $13$29 million of oil and gas-related loans held for sale.
3 
Calculated as the ratio of annualized net charge-offs, for each respective period, to loan balances at each period end.
During the secondthird quarter of 2016, our overall balance of oil and gas-related loans decreased by $52$308 million, or 2.0%11.7%, from year-end 2015, and decreased by $313$491 million, or 10.9%17.5%, from the secondthird quarter of 2015. Oil and gas-related loans represent 5.4% of the total loan portfolio at September 30, 2016, compared with 6.5% at December 31, 2015 and 7.0% at September 30, 2015. Unfunded oil and gas-related lending commitments declined by $328$367 million, or 15.2%17.1%, during the secondthird quarter of 2016, from year-end 2015, and declined by $562$557 million, or 23.6%23.8%, from the secondthird quarter of 2015. The decrease in unfunded oil and gas-related lending commitments was primarily in the oilfield services and oil and gas service manufacturing portfolios.
The majority of loan downgrades in the first sixnine months of 2016 reflected deterioration in the financial condition of companies in the oilfield services and the exploration and production portfolios. Oil and gas-related loan net charge-offs were $37$41 million in the secondthird quarter of 2016, and were predominantly in the oilfield services portfolio, compared to $36with $37 million in the firstsecond quarter of 2016. Nonaccruing oil and gas-related loans remained flat at $286increased by $60 million from the firstsecond quarter of 2016.2016, primarily in the exploration and production and oilfield services portfolios. Approximately 89%87% of oil and gas-related nonaccruing loans were current as to principal and interest payments at JuneSeptember 30, 2016, similar to 91%89% at March 31,June 30, 2016. Further deterioration in the portfolio is possible; however, we currently believe we have established an appropriate reserve of more than 8% for the funded portfolio.
Upstream
Upstream exploration and production loans comprised approximately 32% and 31% of the oil and gas-related loans at JuneSeptember 30, 2016 and December 31, 2015, respectively. Many upstream borrowers have relatively balanced production between oil and gas.
We use disciplined underwriting practices to mitigate the risk associated with upstream lending activities. Upstream loans are made to reserve-based borrowers where approximately 89%88% of those loans are collateralized by the value

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of the borrower’s oil and gas reserves. Our oil and gas price deck, the pricing applied to a borrower’s reserves for underwriting purposes, has generally been below the NYMEX strip, i.e., the average of the daily settlement prices

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of the next 12 months’ futures contracts. Through the use of independent and third party engineers and conservative underwriting, we apply multiple discounts. These discounts often range from 10-40% of the value of the collateral in determining the borrowing base (commitment), and help protect credit quality against significant commodity price declines. Further, reserve-based commitments are subject to a borrowing base redetermination based on then-current oil and gas prices, typically every six months. Generally, we have, at our option, the right to conduct additional redeterminations during the year. Borrowing bases for clients are usually set at 60-70% of available collateral after an adjustment for the discounts described above.
Upstream borrowers generally do not draw the maximum available funding on their lines, which provides the borrower additional liquidity and flexibility. The line utilization rate for upstream borrowers was approximately 61%60% and 57% at JuneSeptember 30, 2016 and December 31, 2015, respectively. This unused commitment gives us the ability in some cases to reduce the borrowing base commitment through the redetermination process without creating a borrowing base deficiency (where outstanding debt exceeds the new borrowing base). Nevertheless, our loan agreements generally require the borrowers to maintain a certain amount of equity. Therefore, if the loan to collateral value exceeds an acceptable limit, we work with the borrowers to reinstate an acceptable collateral-value threshold. As a result of our 2016 spring redetermination of exploration and production oil and gas-related loan borrowing bases, the borrowing base for total exploration and production commitments, excluding new commitments, declined approximately 20% since the fall 2015 redetermination.
An additional metric we consider in our underwriting is a borrower’s oil and gas price hedging practices. A considerable portion of our reserve-based borrowers are hedged. As of JuneSeptember 30, 2016, of the upstream borrower’s risk-based estimated oil production and gas production projected in 2016, approximately 43%40% and 76%82%, respectively, is hedged based on the latest data provided by the borrowers.
Midstream
Midstream marketing and transportation loans comprised approximately 26%27% and 23% of the oil and gas-related exposure at JuneSeptember 30, 2016 and December 31, 2015, respectively. Loans in this segment are made to companies that gather, transport, treat and blend oil and natural gas, or that provide services to similar companies. The assets owned by these borrowers, which make this activity possible, are field-level gathering systems (small diameter pipe), pipelines (medium/large diameter pipe), tanks, trucks, rail cars, various water-based vessels, and natural gas treatment plants. Our midstream loans are secured by these assets, unless the borrower is rated investment-grade. A significant portion of our midstream borrowers’ revenues are derived from fee-based contracts, giving them limited exposure to commodity price risk. Since lower oil and gas prices slow the drilling and development of new oil and natural gas, but do not normally result in significant numbers of producing wells being shut in, volumes of oil and gas flowing through midstream systems usually remain relatively stable throughout oil and natural gas price cycles.
Oil and Gas Services
Oil and gas services loans, which include oilfield services and oil and gas service manufacturing, comprised approximately 35%34% and 39% of the oil and gas-related exposure at JuneSeptember 30, 2016 and December 31, 2015, respectively. Oil and gas services loans include borrowers that have a concentration of revenues in the oil and gas industry. However, many of these borrowers provide a broad range of products and services to the oil and gas industry and are not subject to the same volatility as new drilling activities. Many of these borrowers are diversified geographically and service both oil and gas-related drilling and production.
For oil and gas services loans, underwriting criteria require lower leverage to compensate for the cyclical nature of the industry. During the underwriting process, we use sensitivity analysis to consider revenue and cash flow impacts resulting from oil and gas price cycles.
Risk Management of the Oil and Gas-Related Portfolio
We apply concentration limits and disciplined underwriting to the entire oil and gas-related loan portfolio to limit our risk exposure. Concentration limits on oil and gas-related lending, coupled with adherence to our underwriting

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ZIONS BANCORPORATION AND SUBSIDIARIES

standards, served to constrain loan growth during the past several quarters. As an indicator of the diversity in the size of our oil and gas-related portfolio, the average amount of our commitments is approximately $7$6 million, with approximately 66%69% of the commitments less than $30 million. Additionally, there are instances where we have commitments to companies with a common sponsor, which, whenif combined, would result in higher commitment levels than $30 million. The portfolio contains only senior loans – no junior or second lien positions; additionally, we cautiously approach making first-lien loans to borrowers

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ZIONS BANCORPORATION AND SUBSIDIARIES

that employ excessive leverage through the use of junior lien loans or unsecured layers of debt. Approximately 89%90% of the total oil and gas-related portfolio is secured by reserves, equipment, real estate, and other collateral, or a combination of collateral types.
We participate as a lender in loans and commitments designated as Shared National Credits (“SNCs”), which generally consist of larger and more diversified borrowers that have better access to capital markets. SNCs are loans or loan commitments of at least $20 million that are shared by three or more federally supervised institutions. The percentage of SNCs is approximately 78%80% of the upstream portfolio, 82%81% of the midstream portfolio, and 49%46% of the oil and gas services portfolio. Our bankers have direct access and contact with the management of these SNC borrowers, and as such, are active participants. In many cases, we provide ancillary banking services to these borrowers, further evidencing this direct relationship. Our grading methodology for SNCs has been, and continues to be, consistent with regulatory guidance.The results of the recent shared national credit exam are reflected in our financial statements.
As a secondary source of support, many of our oil and gas-related borrowers have access to capital markets and private equity sources. Private sponsors tend to be large funds, often with assets under management of more than $1 billion, managed by individuals with a great deal of oil and gas expertise and experience and who have successfully managed investments through previous oil and gas price cycles. The investors in the funds are primarily institutional investors, such as large pensions, foundations, trusts, and high net worth family offices.
We expect further deterioration in the oil and gas-related portfolio, primarily from the oil and gas services companies; we currently believe we have appropriately reserved for these downgrades. However; futurea continuation of low oil and gas price volatilityprices may result in further credit deterioration. When establishing the level of the allowance for credit losses (“ACL”),ACL, we consider multiple factors, including reduced drilling activity and additional capital raises by borrowers and their sponsors. Consistent with the firstsecond quarter of 2016, the ACL related to the oil and gas portfolio remained more thancontinued to exceed 8% for the secondthird quarter of 2016.


ZIONS BANCORPORATION AND SUBSIDIARIES

Commercial Real Estate Loans
Selected information indicative of credit quality regarding our CRE loan portfolio is presented in the following schedule.
COMMERCIAL REAL ESTATE PORTFOLIO BY LOAN TYPE AND COLLATERAL LOCATION
(Amounts in millions)(Amounts in millions) Collateral Location    (Amounts in millions) Collateral Location    
Loan type 
As of
date
 Arizona California Colorado Nevada Texas 
Utah/
Idaho
 Wash-ington 
Other 1
 Total 
% of 
total
CRE
As of
date
 Arizona California Colorado Nevada Texas 
Utah/
Idaho
 Wash-ington 
Other 1
 Total 
% of 
total
CRE
Commercial term                                        
Balance outstanding 6/30/2016 $1,241
 $3,267
 $409
 $577
 $1,579
 $1,258
 $299
 $600
 $9,230
 81.6%9/30/2016 $1,233
 $3,161
 $389
 $578
 $1,705
 $1,339
 $303
 $595
 $9,303
 81.2%
% of loan type 13.5% 35.4% 4.4% 6.3% 17.1% 13.6% 3.2% 6.5% 100.0%   13.3% 34.0% 4.2% 6.2% 18.3% 14.4% 3.2% 6.4% 100.0%  
Delinquency rates 2:
Delinquency rates 2:
                                        
30-89 days 6/30/2016 0.3% % 0.2% 0.5% 0.1% 0.1% % 0.2% 0.1%  9/30/2016 0.3% 0.5% 0.8% % % 0.1% 0.2% 0.2% 0.3%  
 12/31/2015 0.1% 0.1% 0.3% 0.1% 0.1% % 0.2% 0.2% 0.1%  12/31/2015 0.1% 0.1% 0.3% 0.1% 0.1% % 0.2% 0.2% 0.1%  
≥ 90 days 6/30/2016 % 0.3% 1.4% % % 0.3% % 0.7% 0.3%  9/30/2016 0.3% 0.3% 0.2% 0.1% % 0.2% % 0.7% 0.2%  
 12/31/2015 % 0.5% 1.6% 0.1% 0.1% 0.2% 1.0% 0.9% 0.4%  12/31/2015 % 0.5% 1.6% 0.1% 0.1% 0.2% 1.0% 0.9% 0.4%  
Accruing loans past due 90 days or more 6/30/2016 $
 $7
 $
 $
 $
 $4
 $
 $
 $11
  9/30/2016 $1
 $10
 $1
 $
 $
 $3
 $
 $
 $15
  
 12/31/2015 
 15
 
 
 
 3
 3
 1
 22
  12/31/2015 
 15
 
 
 
 3
 3
 1
 22
  
Nonaccrual loans 6/30/2016 $11
 $25
 $6
 $2
 $
 $1
 $
 $6
 $51
  9/30/2016 $9
 $10
 $
 $2
 $
 $1
 $
 $5
 $27
  
 12/31/2015 17
 4
 8
 3
 1
 1
 
 6
 40
  12/31/2015 17
 4
 8
 3
 1
 1
 
 6
 40
  
Residential construction and land developmentResidential construction and land development                Residential construction and land development                  
Balance outstanding 6/30/2016 $31
 $401
 $96
 $11
 $258
 $46
 $8
 $4
 $855
 7.5%9/30/2016 $35
 $375
 $89
 $11
 $255
 $47
 $8
 $3
 $823
 7.2%
% of loan type 3.6% 46.9% 11.2% 1.3% 30.2% 5.4% 0.9% 0.5% 100.0%   4.2% 45.6% 10.8% 1.3% 31.0% 5.7% 1.0% 0.4% 100.0%  
Delinquency rates 2:
Delinquency rates 2:
                    
Delinquency rates 2:
                    
30-89 days 6/30/2016 0.8% 2.5% % % 1.5% % % % 1.6%  9/30/2016 2.3% % 1.5% % 2.5% % % % 1.0%  
 12/31/2015 % % % % 0.3% % % % 0.1%  12/31/2015 % % % % 0.3% % % % 0.1%  
≥ 90 days 6/30/2016 % % % % % % % % %  9/30/2016 % % % % % % % % %  
 12/31/2015 % % % % 0.5% % % % 0.2%  12/31/2015 % % % % 0.5% % % % 0.2%  
Accruing loans past due 90 days or more 6/30/2016 $
 $
 $
 $
 $
 $
 $
 $
 $
  9/30/2016 $
 $
 $
 $
 $
 $
 $
 $
 $
  
 12/31/2015 
 
 
 
 
 
 
 
 
  12/31/2015 
 
 
 
 
 
 
 
 
  
Nonaccrual loans 6/30/2016 $
 $
 $
 $
 $3
 $
 $
 $
 $3
  9/30/2016 $
 $
 $
 $
 $2
 $
 $
 $
 $2
  
 12/31/2015 
 
 
 
 3
 
 
 
 3
  12/31/2015 
 
 
 
 3
 
 
 
 3
  
Commercial construction and land developmentCommercial construction and land development                Commercial construction and land development                  
Balance outstanding 6/30/2016 $86
 $254
 $67
 $56
 $467
 $215
 $42
 $46
 $1,233
 10.9%9/30/2016 $104
 $236
 $98
 $59
 $507
 $225
 $59
 $36
 $1,324
 11.6%
% of loan type 7.0% 20.6% 5.4% 4.5% 37.9% 17.5% 3.4% 3.7% 100.0%   7.8% 17.8% 7.4% 4.5% 38.3% 17.0% 4.5% 2.7% 100.0%  
Delinquency rates 2:
Delinquency rates 2:
                                        
30-89 days 6/30/2016 % % 0.1% % 2.2% % % % 0.8%  9/30/2016 % % 16.5% % 2.1% % % % 1.8%  
 12/31/2015 % % % % % 0.1% % % %  12/31/2015 % % % % % 0.1% % % %  
≥ 90 days 6/30/2016 % % % % 0.4% % % % 0.1%  9/30/2016 % % % % 0.4% % % % %  
 12/31/2015 % % % % 0.7% 0.4% % % 0.4%  12/31/2015 % % % % 0.7% 0.4% % % 0.4%  
Accruing loans past due 90 days or more 6/30/2016 $
 $
 $
 $
 $
 $
 $
 $
 $
  9/30/2016 $
 $
 $
 $
 $
 $
 $
 $
 $
  
 12/31/2015 
 
 
 
 
 
 
 
 
  12/31/2015 
 
 
 
 
 
 
 
 
  
Nonaccrual loans 6/30/2016 $
 $
 $
 $
 $2
 $
 $
 $
 $2
  9/30/2016 $
 $
 $
 $
 $2
 $
 $
 $
 $2
  
 12/31/2015 
 
 
 
 4
 
 
 
 4
  12/31/2015 
 
 
 
 4
 
 
 
 4
  
Total construction and land development 6/30/2016 $117

$655

$163

$67

$725

$261

$50

$50
 $2,088
  9/30/2016 $139

$611

$187

$70

$762

$272

$67

$39
 $2,147
  
Total commercial real estate 6/30/2016 $1,358

$3,922

$572

$644

$2,304

$1,519

$349

$650
 $11,318
 100.0%9/30/2016 $1,372

$3,772

$576

$648

$2,467

$1,611

$370

$634
 $11,450
 100.0%
1 
No other geography exceeds $96$89 million for all three loan types.
2 
Delinquency rates include nonaccrual loans.
Approximately 25%24% of the CRE term loans consist of mini-perm loans as of JuneSeptember 30, 2016. For such loans, construction has been completed and the project has stabilized to a level that supports the granting of a mini-perm loan in accordance with our underwriting standards. Mini-perm loans generally have initial maturities of three to seven years. The remaining 75%76% of CRE loans are term loans with initial maturities generally of 5 to 20 years. The stabilization criteria for a project to qualify for a term loan differ by product type and include criteria related to the cash flow generated by the project, loan-to-value ratio, and occupancy rates.

ZIONS BANCORPORATION AND SUBSIDIARIES

Approximately $131$161 million, or 11%12%, of the commercial construction and land development portfolio at JuneSeptember 30, 2016 consists of acquisition and development loans. Most of these acquisition and development loans are secured by specific retail, apartment, office, or other projects.
Underwriting on commercial properties is primarily based on the economic viability of the project with heavy consideration given to the creditworthiness and experience of the sponsor. We generally require that the owner’s equity be injected prior to bank advances. Remargining requirements (required equity infusions upon a decline in value of the collateral) are often included in the loan agreement along with guarantees of the sponsor. Recognizing that debt is paid via cash flow, the projected cash flows of the project are critical in the underwriting because these determine the ultimate value of the property and its ability to service debt. Therefore, in most projects (with the exception of multifamily projects) we look for substantial pre-leasing in our underwriting and we generally require a minimum projected stabilized debt service coverage ratio of 1.20 or higher, depending on the project asset class.
Within the residential construction and development sector, many of the requirements previously mentioned, such as creditworthiness and experience of the developer, up-front injection of the developer’s equity, principal curtailment requirements, and the viability of the project are also important in underwriting a residential development loan. Significant consideration is given to the likely market acceptance of the product, location, strength of the developer, and the ability of the developer to stay within budget. Progress inspections by qualified independent inspectors are routinely performed before disbursements are made.
Real estate appraisals are ordered and validated independent of the loan officer and the borrower, generally by each bank’s internal appraisal review function, which is staffed by licensed appraisers. In some cases, reports from automated valuation services are used. Appraisals are ordered from outside appraisers at the inception, renewal or, for CRE loans, upon the occurrence of any event causing a downgrade to an adverse grade (i.e., “criticized” or “classified”). We increase the frequency of obtaining updated appraisals for adversely graded credits when declining market conditions exist.
Advance rates (i.e., loan commitments) will vary based on the viability of the project and the creditworthiness of the sponsor, but our guidelines generally limit advances to 50% for raw land, 65% for land development, 65% for finished commercial lots, 75% for finished residential lots, 80% for pre-sold homes, 75% for models and homes not under contract, and 75%70-80% for commercial properties.properties, depending on the collateral type. Exceptions may be granted on a case-by-case basis.
Loan agreements require regular financial information on the project and the sponsor in addition to lease schedules, rent rolls and, on construction projects, independent progress inspection reports. The receipt of this financial information is monitored and calculations are made to determine adherence to the covenants set forth in the loan agreement. Additionally, loan-by-loan reviews of pass grade loans for all commercial and residential construction and land development loans are generally performed semiannually at all subsidiary banks except TCBW, which performs such reviews annually.semiannually.
CRE loans are sometimes modified to increase the likelihood of collecting the maximum possible amount of our investment in the loan. In general, theThe existence of a guarantee that improves the likelihood of repayment is generally taken into consideration when analyzing a loanCRE loans for impairment. If the support of the guarantor is quantifiable and documented, it is included in the potential cash flows and liquidity available for debt repayment and our impairment methodology takes into consideration this repayment source.
Additionally, whenWhen we modify or extend a loan, we also give consideration to whether the borrower is in financial difficulty, and whether we have granted a concession. In determining if an interest rate concession has been granted, we consider whether the interest rate on the modified loan is equivalent to current market rates for new debt with similar risk characteristics. If the rate in the modification is less than current market rates, it may indicate that a concession was granted and impairment exists. However, if additional collateral is obtained or if a strong guarantor exists who is believed to be able and willing to support the loan on an extended basis, we also consider the nature and amount of the additional collateral and guarantees in the ultimate determination of whether a concession has been granted.
In general, we obtain and consider updated financial information for the guarantor as part of our determination to

ZIONS BANCORPORATION AND SUBSIDIARIES

extend a loan. The quality and frequency of financial reporting collected and analyzed varies depending on the

ZIONS BANCORPORATION AND SUBSIDIARIES

contractual requirements for reporting, the size of the transaction, and the strength of the guarantor.
Complete underwriting of the guarantor includes, but is not limited to, an analysis of the guarantor’s current financial statements, leverage, liquidity, global cash flow, global debt service coverage, contingent liabilities, etc. The assessment also includes a qualitative analysis of the guarantor’s willingness to perform in the event of a problem and demonstrated history of performing in similar situations. Additional analysis may include personal financial statements, tax returns, liquidity (brokerage) confirmations, and other reports, as appropriate.
A qualitative assessment is performed on a case-by-case basis to evaluate the guarantor’s experience, performance track record, reputation, performance of other related projects with which we are familiar, and willingness to work with us. We also utilize market information sources, rating, and scoring services in our assessment. This qualitative analysis coupled with a documented quantitative ability to support the loan may result in a higher-quality internal loan grade, which may reduce the level of allowance we estimate. Previous documentation of the guarantor’s financial ability to support the loan is discounted if there is any indication of a lack of willingness by the guarantor to support the loan.
In the event of default, we evaluate the pursuit of any and all appropriate potential sources of repayment, which may come from multiple sources, including the guarantee. A number of factors are considered when deciding whether or not to pursue a guarantor, including, but not limited to, the value and liquidity of other sources of repayment (collateral), the financial strength and liquidity of the guarantor, possible statutory limitations (e.g., single action rule on real estate) and the overall cost of pursuing a guarantee compared towith the ultimate amount we may be able to recover. In other instances, the guarantor may voluntarily support a loan without any formal pursuit of remedies.
OilA continuation of low oil and gas price volatilityprices could potentially produce an adverse impact on our CRE loan portfolio within Texas. Our largest CRE credit exposures in Texas are to the multi-family, office, and retail sectors. However, compared towith 2008, our CRE exposure in Texas has significantly decreased. Approximately 60% of our CRE credit exposures in Texas are located in Houston. We have a centralizedstandardized review and approval process for all CRE transactions providing more consistency and discipline in underwriting standards compared towith 2008. The current CRE loan portfolio mix in Texas is 69%68% commercial term, 20%18% commercial construction, 10% residential construction, and 11% residential construction. 4% land development.
Consumer Loans
We have mainly been an originator of first and second mortgages, generally considered to be of prime quality. Historically, our practice has been to sell “conforming” fixed-rate loans to third parties, including Fannie Mae and Freddie Mac, for which we make representations and warranties that the loans meet certain underwriting and collateral documentation standards. It has also been our practice historically to hold variable-rate loans in our portfolio. We actively monitor loan “put-backs” (required repurchases of loans previously sold to Fannie Mae or Freddie Mac due to inadequate documentation or other reasons). Loan put-backs have been minimal over a multiple-year period. We estimate that we do not have any material risk as a result of either our foreclosure practices or loan put-backs and we have not established any reserves related to these items.
We are engaged in home equity credit line (“HECL”) lending. At JuneSeptember 30, 2016 and December 31, 2015, our HECL portfolio totaled $2.5$2.6 billion and $2.4 billion, respectively. The following schedule describes the composition of our HECL portfolio by lien status.
HECL PORTFOLIO BY LIEN STATUS
(In millions)June 30, 2016 December 31, 2015
    
Secured by first deeds of trust$1,319
 $1,268
Secured by second (or junior) liens1,188
 1,149
Total$2,507
 $2,417

ZIONS BANCORPORATION AND SUBSIDIARIES

(In millions)September 30, 2016 December 31, 2015
    
Secured by first deeds of trust$1,352
 $1,268
Secured by second (or junior) liens1,229
 1,149
Total$2,581
 $2,417
At JuneSeptember 30, 2016, loans representing approximately 1% of the outstanding balance in the HECL portfolio were estimated to have combined loan-to-value ratios (“CLTV”) above 100%. An estimated CLTV ratio is the ratio of our loan plus any prior lien amounts divided by the estimated current collateral value. At origination, underwriting standards for the HECL portfolio generally include a maximum 80% CLTV with high credit scores at origination.

ZIONS BANCORPORATION AND SUBSIDIARIES

Approximately 94% of our HECL portfolio is still in the draw period, and approximately 30%28% is scheduled to begin amortizing within the next five years. We regularly analyze the risk of borrower default in the event of a loan becoming fully amortizing and the risk of higher interest rates. The analysis indicates that the risk of loss from this factor is minimal in the current economic environment. The annualized net credit losses for the HECL portfolio were (1)2 bps and (2)(3) bps, for the first sixnine months of 2016 and 2015, respectively. See Note 6 of the Notes to Consolidated Financial Statements for additional information on the credit quality of this portfolio.
Nonperforming Assets
Nonperforming assets as a percentage of loans and leases and OREO increased to 1.30%1.37% at JuneSeptember 30, 2016, compared towith 0.87% at December 31, 2015.
Total nonaccrual loans at JuneSeptember 30, 2016 increased $198$229 million from December 31, 2015, primarily due to the deterioration in the oil and gas-related loan portfolio. However, nonaccrual loans declined in the 1-4 family residential, commercial owner occupied, and CRE construction and land development loan classes. The largest total decreases in nonaccrual loans occurred at Zions Bank.
The balance of nonaccrual loans decreasesdecreased due to paydowns, charge-offs, and the return of loans to accrual status under certain conditions. If a nonaccrual loan is refinanced or restructured, the new note is immediately placed on nonaccrual. If a restructured loan performs under the new terms for at least a period of six months, the loan can be considered for return to accrual status. See “Restructured Loans” following for more information. Company policy does not allow for the conversion of nonaccrual construction and land development loans to CRE term loans. See Note 6 of the Notes to Consolidated Financial Statements for more information.
The following schedule sets forth our nonperforming assets:
NONPERFORMING ASSETS
(Amounts in millions)June 30,
2016
 December 31,
2015
September 30,
2016
 December 31,
2015
      
Nonaccrual loans 1
$548
 $350
$579
 $350
Other real estate owned8
 7
8
 7
Total nonperforming assets$556
 $357
$587
 $357
Ratio of nonperforming assets to net loans and leases1 and other real estate owned
1.30% 0.87%1.37% 0.87%
Accruing loans past due 90 days or more$29
 $32
$29
 $32
Ratio of accruing loans past due 90 days or more to loans and leases1
0.07% 0.08%0.07% 0.08%
Nonaccrual loans and accruing loans past due 90 days or more$577
 $382
$608
 $382
Ratio of nonaccrual loans and accruing loans past due 90 days or more to loans and leases1
1.35% 0.94%1.42% 0.94%
Accruing loans past due 30-89 days$133
 $122
$164
 $122
Nonaccrual loans current as to principal and interest payments71.4% 62.1%76.8% 62.1%
1 Includes loans held for sale.
Restructured Loans
TDRsTroubled debt restructurings (“TDRs”) are loans that have been modified to accommodate a borrower who is experiencing financial difficulties, and for whom we have granted a concession that we would not otherwise consider. TDRs increased 6.1%decreased 0.7% during the first sixnine months of 2016, mainly due to the deterioration in the oil and gas-related loan portfolio.2016. Commercial loans may be modified to provide the borrower more time to complete the project, to achieve a higher lease-up percentage, to sell the property, or for other reasons. Consumer loan TDRs represent loan modifications in which a concession has been granted to the borrower who is unable to refinance the loan with another lender, or who is experiencing

ZIONS BANCORPORATION AND SUBSIDIARIES

economic hardship. Such consumer loan TDRs may include first-lien residential mortgage loans and home equity loans.
If the restructured loan performs for at least six months according to the modified terms, and an analysis of the customer’s financial condition indicates that we are reasonably assured of repayment of the modified principal and interest, the loan may be returned to accrual status. The borrower’s payment performance prior to and following the restructuring is taken into account to determine whether a loan should be returned to accrual status.

ZIONS BANCORPORATION AND SUBSIDIARIES

ACCRUING AND NONACCRUING TROUBLED DEBT RESTRUCTURED LOANS
 June 30,
2016
 December 31,
2015
(In millions)  September 30,
2016
 December 31,
2015
              
Restructured loans – accruing $172
 $194
  $170
 $194
 
Restructured loans – nonaccruing 143
 103
  125
 103
 
Total $315
 $297
  $295
 $297
 
In the periods following the calendar year in which a loan was restructured, a loan may no longer be reported as a TDR if it is on accrual, is in compliance with its modified terms, and yields a market rate (as determined and documented at the time of the modification or restructure). Company policy requires that the removal of TDR status be approved at the same management level that approved the upgrading of a loan’s classification. See Note 6 of the Notes to Consolidated Financial Statements for additional information regarding TDRs.
TROUBLED DEBT RESTRUCTURED LOANS ROLLFORWARD
Three Months Ended
June 30,
 Six Months Ended
June 30,
Three Months Ended
September 30,
 Nine Months Ended
September 30,
(In millions)2016 2015 2016 20152016 2015 2016 2015
              
Balance at beginning of period$328
 $309
 $297
 $343
$315
 $298
 $297
 $343
New identified TDRs and principal increases39
 39
 102
 52
40
 31
 142
 83
Payments and payoffs(41) (42) (72) (88)(35) (27) (107) (115)
Charge-offs(3) (4) (5) (5)(24) (6) (29) (11)
No longer reported as TDRs(7) (2) (7) (2)
 (10) (7) (12)
Sales and other(1) (2) 
 (2)(1) 
 (1) (2)
Balance at end of period$315
 $298
 $315
 $298
$295
 $286
 $295
 $286
Allowance for Credit Losses
The ACL consists of the ALLL (also referred to as the allowance for loan losses) and the RULC. In analyzing the adequacy of the allowance for loan losses, we utilize a comprehensive loan grading system to determine the risk potential in the portfolio and also consider the results of independent internal credit reviews. To determine the adequacy of the allowance, our loan and lease portfolio is broken into segments based on loan type.

ZIONS BANCORPORATION AND SUBSIDIARIES

The following schedule shows the changes in the allowance for loan losses and a summary of loan loss experience:
SUMMARY OF LOAN LOSS EXPERIENCE
(Amounts in millions)

Six Months Ended June 30, 2016 Twelve Months Ended December 31, 2015 Six Months Ended June 30, 2015Nine Months Ended September 30, 2016 Twelve Months Ended December 31, 2015 Nine Months Ended September 30, 2015
          
Loans and leases outstanding (net of unearned income)$42,501
 $40,650
 $40,024
$42,540
 $40,650
 $40,113
Average loans and leases outstanding (net of unearned income)$41,555
 $40,171
 $40,155
$41,868
 $40,171
 $40,111
Allowance for loan losses:          
Balance at beginning of period$606
 $605
 $605
$606
 $605
 $605
Provision charged (credited) to earnings77
 40
 (1)95
 40
 17
Adjustment for FDIC-supported/PCI loans
 
 

 
 
Charge-offs:          
Commercial(90) (111) (40)(138) (111) (77)
Commercial real estate(9) (14) (4)(10) (14) (6)
Consumer(7) (14) (7)(11) (14) (10)
Total(106) (139) (51)(159) (139) (93)
Recoveries:          
Commercial21
 55
 34
36
 55
 39
Commercial real estate5
 35
 17
12
 35
 21
Consumer5
 10
 5
7
 10
 8
Total31
 100
 56
55
 100
 68
Net loan and lease charge-offs(75) (39) 5
(104) (39) (25)
Balance at end of period$608
 $606
 $609
$597
 $606
 $597
          
Ratio of annualized net charge-offs to average loans and leases0.36% 0.10% (0.02)%0.33% 0.10% 0.08%
Ratio of allowance for loan losses to net loans and leases, at period end1.43% 1.49% 1.52 %1.40% 1.49% 1.49%
Ratio of allowance for loan losses to nonperforming loans, at period end111% 173% 163 %103% 173% 166%
Ratio of allowance for loan losses to nonaccrual loans and accruing loans past due 90 days or more, at period end106% 159% 152 %98% 159% 151%
The total ALLL increaseddecreased during the first sixnine months of 2016 by $2 million. We increased the ALLL due to continued weaknesses in the oil and gas industry. This increase was partially offset by a reduction in the ALLL elsewhere, which was$9 million due to improvements in credit quality metrics outside of the oil and gas industry. This decrease was partially offset by continued weaknesses in the oil and gas industry.
The RULC represents a reserve for potential losses associated with off-balance sheet commitments and standby letters of credit. The reserve is separately shown in the balance sheet and any related increases or decreases in the reserve are shown separately in the statement of income. At JuneSeptember 30, 2016, the reserve decreased by $10$13 million compared towith December 31, 2015, and decreased by $15$20 million from JuneSeptember 30, 2015.
See Note 6 of the Notes to Consolidated Financial Statements for additional information related to the ACL and credit trends experienced in each portfolio segment.
Interest Rate and Market Risk Management
Interest rate and market risk are managed centrally. Interest rate risk is the potential for reduced net interest income and other rate sensitive income resulting from adverse changes in the level of interest rates. 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. As a financial institution that engages in transactions involving an array of financial products, we are exposed to both interest rate risk and market risk.
The Company’s Board of Directors is responsible for approving the overall policies relating to the management of the financial risk of the Company, including interest rate and market risk management. In addition, the Board

ZIONS BANCORPORATION AND SUBSIDIARIES

establishes and periodically revises policy limits and reviews limit exceptions reported by management. The Board has established the Asset/Liability Committee (“ALCO”) consisting of members of management, to which it has

ZIONS BANCORPORATION AND SUBSIDIARIES

delegated the responsibility of managing interest rate and market risk for the Company. ALCO is primarily responsible for managing interest rate and market risk.
Interest Rate Risk
Interest rate risk is one of the most significant risks to which we are regularly exposed. In general, our goal in managing interest rate risk is to have net interest income increase in a rising interest rate environment. We refer to this goal as being “asset-sensitive.” This approach is based on our belief that in a rising interest rate environment, the market cost of equity, or implied rate at which future earnings are discounted, would also tend to rise.
Due to the low level of rates, there is limited sensitivity to falling rates at the current time, and we have tended to operate near interest rate risk “triggers” and appetites to be appropriately positioned in light of prevailing market conditions in order to maximize shareholder value. However, if interest rates remain at their current historically low levels, given our asset sensitivity, we would expect the NIM to be under continuing modest pressure assuming a balance sheet that is static in size. Additionally, market participants have recently contemplated the possibility of negative rates in the U.S. markets which would likely have a more negative impact on the NIM. In order to mitigate this pressure we have been deploying cash into short-to-medium duration agency pass-through securities. Additionally, we have increased the use of interest rate swaps designated as cash flow hedges to synthetically convert floating-rate assets to fixed-rate. Over time these actions are expected to somewhat reduce our asset sensitivity compared towith previous periods, and better match the duration of our assets with our liabilities, while also improving current earnings.
Interest Rate Risk Measurement
We monitor interest rate risk through the use of two complementary measurement methods: net interest income simulation and Economic Value of Equity at Risk (“EVE”). In the net interest income simulation method, we analyze the expected change in net interest income in response to changes in interest rates. In the EVE method, we measure the expected changes in the fair value of equity in response to changes in interest rates.
Net interest income simulation is an estimate of the total net interest income that would be recognized under different rate environments. Net interest income is measured under several parallel and nonparallel interest rate environments and deposit repricing assumptions, taking into account an estimate of the possible exercise of embedded options within the portfolio (e.g., a borrower’s ability to refinance a loan under a lower rate environment). Our policy contains a trigger for a 10% decline in rate sensitive income as well as a risk capacity of a 13% decline if rates were to immediately rise or fall in parallel by 200 bps. This trigger and risk capacity apply to both the fast and the slow deposit assumptions.
EVE is calculated as the fair value of all assets minus the fair value of liabilities. We measure changes in the dollar amount of EVE for parallel shifts in interest rates. Due to embedded optionality and asymmetric rate risk, changes in EVE can be useful in quantifying risks not apparent for small rate changes. Examples of such risks may include out-of-the-money interest rate caps (or limits) on loans, which have little effect under small rate movements but may become important if large rate changes were to occur, or substantial prepayment deceleration for low rate mortgages in a higher rate environment.
The following schedule presents the formal EVE limits we have adopted. Exceptions to the EVE limits are subject to notification and approval by the ROC. In the normal course of business, we evaluated our limits and made changes to reflect its current balance sheet management objectives. These changes are reflected in the following schedule.

ZIONS BANCORPORATION AND SUBSIDIARIES

ECONOMIC VALUE OF EQUITY DECLINE LIMITS
Parallel change in interest rates Trigger decline in EVE Risk capacity decline in EVE
     
+/- 200 bps 8% 10%
 +/- 400 bps 21% 25%
Estimating the impact on net interest income and EVE requires that we assess a number of variables and make various assumptions in managing our exposure to changes in interest rates. The assessments address deposit withdrawals and deposit product migration (e.g., customers moving money from checking accounts to certificates of

ZIONS BANCORPORATION AND SUBSIDIARIES

deposit), competitive pricing (e.g., existing loans and deposits are assumed to roll into new loans and deposits at similar spreads relative to benchmark interest rates), loan and security prepayments, and the effects of other similar embedded options. As a result of uncertainty about the maturity and repricing characteristics of both deposits and loans, we estimate ranges of possible net interest income and EVE results under a variety of assumptions and scenarios. The modeled results are highly sensitive to the assumptions used for deposits that do not have specific maturities, such as checking, savings and money market accounts, and also to prepayment assumptions used for loans with prepayment options. We use historical regression analysis as a guide to setting such assumptions; however, due to the current low interest rate environment, which has little historical precedent, estimated deposit durations may not reflect actual future results. Additionally, competition for funding in the marketplace has and may again result in changes ofto deposit pricing on interest-bearing accounts that isare greater or less than changes in benchmark interest rates such as LIBOR or the federal funds rate.
Under most rising interest rate environments, we would expect some customers to move balances in demand deposits to interest-bearing accounts such as money market, savings, or CDs. The models are particularly sensitive to the assumption about the rate of such migration. In order to capture the sensitivity of our models to this risk, we estimate a range of possible outcomes for interest sensitivity under “fast” and “slow” movements of client funds out of noninterest-bearing deposits and into interest-bearing sources of funds.
In addition, we assume certain correlation rates, often referred to as a “deposit beta,” of interest-bearing deposits, wherein the rates paid to customers change at a different pace when compared to changes in benchmark interest rates. Generally, certificates of deposit are assumed to have a high correlation rate, while interest-on-checking accounts are assumed to have a lower correlation rate. Actual results may differ materially due to factors including competitive pricing, money supply, credit worthiness of the Company, and so forth; however, we use our historical experience as well as industry data to inform our assumptions.
The aforementioned migration and correlation assumptions result in deposit durations presented in the following schedule:
DEPOSIT ASSUMPTIONS
 June 30, 2016 September 30, 2016
 Fast Slow Fast Slow
Product Effective duration (unchanged) Effective duration (+200 bps) Effective duration (unchanged) Effective duration (+200 bps) Effective duration (unchanged) Effective duration (+200 bps) Effective duration (unchanged) Effective duration (+200 bps)
                
Demand deposits 2.2% 1.5% 2.6% 2.2% 2.2% 1.4% 2.7% 2.2%
Money market 1.5% 1.2% 1.9% 1.6% 1.5% 1.2% 1.9% 1.6%
Savings and interest-on-checking 2.9% 2.1% 3.4% 2.8% 2.8% 2.0% 3.4% 2.7%
As of the dates indicated and incorporating the assumptions previously described, the following schedule shows our estimated percentage change in net interest income, based on a static balance sheet size, in the first year after the interest rate change if interest rates were to sustain immediate parallel changes ranging from -100 bps to +300 bps.

ZIONS BANCORPORATION AND SUBSIDIARIES

INCOME SIMULATION – CHANGE IN NET INTEREST INCOME
 June 30, 2016 September 30, 2016
 
Parallel shift in rates (in bps)1
 
Parallel shift in rates (in bps)1
Repricing scenario -100 0 +100 +200 -100 -100 0 +100 +200 +300
                    
Fast (4.7)% % 5.3% 8.9% (4.7)% (4.9)% % 4.6% 7.8% 9.5%
Slow (5.4)% % 8.0% 15.1% (5.4)% (5.8)% % 7.5% 14.2% 20.1%
1 
Assumes rates cannot go below zero in the negative rate shift.

ZIONS BANCORPORATION AND SUBSIDIARIES

For comparative purposes, the December 31, 2015 balancesmeasures are presented in the following schedule.
  December 31, 2015
  
Parallel shift in rates (in bps)1
Repricing scenario -100 0 +100 +200 +300
           
Fast (4.2)% % 5.0% 8.6% 11.1%
Slow (5.0)% % 8.0% 15.5% 22.2%
1 
Assumes rates cannot go below zero in the negative rate shift.
The asset sensitivity as measured by income simulation was largely unchanged.declined slightly due to deployment of cash into medium-term securities, partially offset by growth in noninterest-bearing deposits.
As of the dates indicated and incorporating the assumptions previously described, the following schedule shows our estimated percentage change in EVE under parallel interest rate changes ranging from -100 bps to +300 bps.
CHANGES IN ECONOMIC VALUE OF EQUITY
 June 30, 2016 September 30, 2016
Repricing scenario -100 bps 0 bps +100 bps +200 bps +300 bps -100 bps 0 bps +100 bps +200 bps +300 bps
                    
Fast 9.4% % 0.2% (1.4)% (4.7)% 8.3% % (0.2)% (2.3)% (6.0)%
Slow 8.9% % 3.2% 5.2 % 5.9 % 6.9% % 3.3 % 5.1 % 5.7 %
For comparative purposes, we applied the model to the December 31, 2015 balances; these resultsmeasures are presented in the following schedule. For positive rate shocks, the decline in EVE measures are driven by the same factors as those in our income simulation.
  December 31, 2015
Repricing scenario -100 bps 0 bps +100 bps +200 bps +300 bps
           
Fast (1.8)% % 0.4% (1.3)% (4.5)%
Slow (1.1)% % 3.9% 6.1 % 7.2 %
With respect to EVE estimates, certain of our nonspecific maturity deposit assumptions limit the estimated change in deposit value in downside interest rate shocks. While these deposit value assumptions have had limited impact on our EVE estimates in the past, the current interest rate yield curve, distinguished by very low rates across the curve, is causing these assumptions to have an overstated impact on our EVE estimates. As a result of the current interest rate environment, deposit value assumptions are under review and may change in future reporting periods.
Our focus on business banking also plays a significant role in determining the nature of the Company’s asset-liability management posture. At JuneSeptember 30, 2016, $19.3 billion of the Company’s commercial lending and CRE loan balances were scheduled to reprice in the next six months. Of these variable-rate loans approximately 96%95% are tied to either the prime rate or LIBOR. For these variable-rate loans we have executed $1.4 billion of cash flow hedges by receiving fixed-ratesfixed rates on interest rate swaps. Additionally, asset sensitivity is reduced due to $1.5$1.4 billion of variable-rate loans being priced at floored rates at JuneSeptember 30, 2016, which were above the “index plus spread” rate by an average of 5758 bps. At JuneSeptember 30, 2016, we also had $3.2$3.1 billion of variable-rate consumer loans scheduled to reprice in the next six months. Of these variable-rate consumer loans approximately $0.7$0.6 billion were priced at floored rates, which were above the “index plus spread” rate by an average of 68 bps.

ZIONS BANCORPORATION AND SUBSIDIARIES

See Notes 7 and 10 of the Notes to Consolidated Financial Statements for additional information regarding derivative instruments.
Market Risk – Fixed Income
We engage in the underwriting and trading of municipal securities. This trading activity exposes us to a risk of loss arising from adverse changes in the prices of these fixed income securities.
At JuneSeptember 30, 2016, we had a relatively small amount, $119$108 million, of trading assets and $2$57 million of securities sold, not yet purchased, compared with $48 million and $30 million, at December 31, 2015.

ZIONS BANCORPORATION AND SUBSIDIARIES

We are exposed to market risk through changes in fair value. We are also exposed to market risk for interest rate swaps used to hedge interest rate risk. Changes in the fair value of AFS securities and in interest rate swaps that qualify as cash flow hedges are included in accumulated other comprehensive income (“AOCI”) for each financial reporting period. During the secondthird quarter of 2016, the after-tax change in AOCI attributable to AFS and HTM securities improveddecreased by $33$11 million, due largely to changes in the interest rate environment, compared towith a $78$11 million improvement in the same prior year period.
Market Risk – Equity Investments
Through our equity investment activities, we own equity securities that are publicly traded. In addition, we own equity securities in companies and governmental entities, e.g., Federal Reserve Bank and FHLBs, that are not publicly traded. The accounting for equity investments may use the cost, fair value, equity, or full consolidation methods of accounting, depending on our ownership position and degree of involvement in influencing the investees’ affairs. Regardless of the accounting method, the value of our investment is subject to fluctuation. Because the fair value of these securities may fall below our investment costs, we are exposed to the possibility of loss. Equity investments in private and public companies are approved, monitored and evaluated by the Company’s Equity Investment Committee consisting of members of management.
We hold both direct and indirect investments in predominatelypredominantly pre-public companies through various SBIC venture capital funds. Our equity exposure to these investments was approximately $120$129 million and $113 million at JuneSeptember 30, 2016 and December 31, 2015, respectively. On occasion, some of the companies within our SBIC investments may issue an initial public offering. In this case, the fund is generally subject to a lockout period before liquidating the investment which can introduce additional market risk. As of JuneSeptember 30, 2016 we had direct SBIC investments of approximately $23$26 million of publicly traded stocks.
Additionally, Amegy has an alternative investments portfolio. These investments are primarily directed towards equity buyout and mezzanine funds with a key strategy of deriving ancillary commercial banking business from the portfolio companies. Early stage venture capital funds are generally not a part of the strategy because the underlying companies are typically not creditworthy. The carrying value of Amegys equity investments was $18$17 million at JuneSeptember 30, 2016 and $21 million at December 31, 2015.
These PEIs are subject to the provisions of the Dodd-Frank Act. The Volcker Rule of the Dodd-Frank Act prohibits banks and bank holding companies from holding PEIs beyond July 21, 2017, except for SBIC funds. As of JuneSeptember 30, 2016, such prohibited PEIs amounted to $7 million, with an additional $2$1 million of unfunded commitments (see Notes 5 and 11 of the Notes to Consolidated Financial Statements for more information). We currently do not believe that this divestiture requirement will have a material impact on our financial statements or earnings.
Our earnings from these investments, and the potential volatility of these earnings, are expected to decline as we ultimately plan to dispose of them in accordance with the Volcker Rule.
Liquidity Risk Management
Liquidity risk is the possibility that our cash flows may not be adequate to fund our ongoing operations and meet our commitments in a timely and cost-effective manner. Since liquidity risk is closely linked to both credit risk and market risk, many of the previously discussed risk control mechanisms also apply to the monitoring and management of liquidity risk. We manage our liquidity to provide adequate funds to meet our anticipated financial

ZIONS BANCORPORATION AND SUBSIDIARIES

and contractual obligations, including withdrawals by depositors, debt and capital service requirements, and lease obligations, as well as to fund customers’ needs for credit. The management of liquidity and funding is performed centrally for the Parent and jointly by the Parent and bank management for its subsidiary bank.
Consolidated cash, interest-bearing deposits held as investments, and security resell agreements at the Parent and its subsidiaries decreased towas $3.6 billion at September 30, 2016 compared with $3.2 billion at June 30, 2016 from $5.1 million at March 31, 2016, and $7.4 billion at December 31, 2015. The $4.2$3.8 billion decrease during the first sixnine months of 2016 resulted primarily from (1) an increase in investment securities, (2) net loan originations, (3) purchaserepurchase and redemption of our preferred stock and(4)and

ZIONS BANCORPORATION AND SUBSIDIARIES

common stock, and (4) repayment of long-term debt. These decreases were partially offset by (1) net cash provided by operating activities.activities and (2) short-term FHLB borrowings.
During the first sixnine months of 2016, our HTM and AFS investment securities increased by $2.0$2.8 billion. This increase was primarily due to purchases of short-to-medium duration agency guaranteed mortgage-backed securities. We have been adding to our investment portfolio during the past several quarters to increase our permanent HQLA position in light of the new LCR rules and more broadly, to manage balance sheet liquidity more effectively. We expect to continue to deploy cash and short-term investments into HQLA during the remainderfourth quarter of 2016.2016 and 2017.
During the first sixnine months of 2016 we made cash payments totaling $115$244 million for our long-term debt which matured or were redeemed and did not incur any new long-term debt during the same time period. See noteNote 8 for additional detail about debt redemptions and maturities during the first sixnine months of 2016.

During the third quarter of 2016, we incurred $750 million of short-term debt, which has since matured, with the FHLB to take advantage of a very short-term investment opportunity yielding a higher return than the debt charged. The investment resulted in an increase of $750 million to federal funds sold and security resell agreements.
The Company has adopted policy limits that govern liquidity risk. The policy requires the Company to maintain a buffer of highly liquid assets sufficient to cover cash outflows asin the resultevent of a severe liquidity crisis. The Company targets a buffer of highly liquid assets at the Parent to cover 18-24 months of cash outflows under a scenario with limited cash inflows, and maintains a minimum policy limit of not less than 12 months. Throughout the first sixnine months of 2016 and as of JuneSeptember 30, 2016, the Company complied with this policy.
Liquidity Regulation
In September 2014, U.S. banking regulators issued a final rule that implements a quantitative liquidity requirement in the U.S. generally consistent with the LCR minimum liquidity measure established under the Basel III liquidity framework. Under this rule, we are subject to a modified LCR standard, which requires a financial institution to hold an adequate amount of unencumbered HQLA that can be converted into cash easily and immediately in private markets to meet its liquidity needs for a short-term liquidity stress scenario. This rule became applicable to us on January 1, 2016. The Company exceeds the regulatory requirements of the Modified LCR that mandates a buffer of HQLA to cover 70% of 30-day cash outflows under the assumptions mandated in the Final Liquidity Rule. ZB, N.A. maintains a buffer of highly liquid assets consisting of cash, U.S. Agency, and U.S. Government Sponsored Entity securities to cover 30-day cash outflows under liquidity stress tests and maintains a contingency funding plan to identify funding sources that would be utilized over the extended 12-month horizon.
The Basel III liquidity framework includes a second minimum liquidity measure, the Net Stable Funding Ratio (“NSFR”), which requires a financial institution to maintain a stable funding profile over a one-year period in relation to the characteristics of its on- and off-balance sheet activities. On October 31, 2014, the Basel Committee on Banking Supervision issued its final standards for this ratio, entitled Basel III: The Net Stable Funding Ratio. On May 3, 2016, the FRB issued a proposal requiring bank holding companies with less than $250 billion of assets, but more than $50 billion of assets, to cover 70% of 1-year cash outflows under the assumptions required in the proposed NSFR Rule. Under the proposal, bank holding companies would be required to publicly disclose information about the NSFR levels each quarter. The proposal has an effective date of January 1, 2018. We continue to monitor this proposal and any other developments. Based on this Basel III publication and the FRB proposal, we believe we would meet the minimum NSFR if such requirement were currently effective.
We are required by the requirements of the Enhanced Prudent Standards for liquidity management (Reg. YY) to conduct monthly liquidity stress tests. These tests incorporate scenarios designed by us subject to review by the FRB. The Company’s internal liquidity stress-testing program as contained in its policy complies with these

ZIONS BANCORPORATION AND SUBSIDIARIES

requirements. Additionally, the Company performs monthly liquidity stress-testingstress testing using a set of internally generated scenarios representing severe liquidity constraints over a 12-month horizon.

ZIONS BANCORPORATION AND SUBSIDIARIES

Parent Company Liquidity
The Parent’s cash requirements consist primarily of debt service, investments in and advances to subsidiaries, operating expenses, income taxes, and dividends to preferred and common shareholders. The Parent’s cash needs are usually met through dividends from its subsidiaries, interest and investment income, subsidiaries’ proportionate shareshares of current income taxes, and long-term debt and equity issuances.
Cash, interest-bearing deposits held as investments, and security resell agreements at the Parent decreased to $0.4 billion at September 30, 2016 compared with $0.6 billion at June 30, 2016 compared with $0.8 billion at March 31, 2016 and $0.9 billion at December 31, 2015. This $0.3$0.5 billion decrease for the first sixnine months of 2016 resulted primarily from (1) purchase and redemption of our preferred stock and common stock, (2) repayment of long-term debt, (3) dividends on our common and preferred stock, and (4) interest payments. This decrease in cash was partially offset by common dividends and return of common equity received by the parent from its subsidiary bank.
At JuneSeptember 30, 2016, the Parent had no long-term debt maturities during the remainder of 2016. During 2017, the Parent’s long-term debt maturities consist of $152 million for a senior note due on March 27, 2017. At JuneSeptember 30, 2016, maturities of our long-term senior and subordinated debt ranged from March 2017 to September 2028.
See Note 8 of the Notes to Consolidated Financial Statements and “Capital Management” for a discussion regarding our election to redeem of total of $165 million of junior subordinated debentures related to trust preferred securities, the tender offer and purchase of $120 million for certain of the Company’s preferred stock in the second quarter of 2016, and the board of directors’ approval of certain capital actions contained in the Company’s 2016 capital plan.
During the first sixnine months of 2016, the Parent received $50our subsidiary bank accrued $125 million of common dividends and return of common equity that has since been paid to the Parent, compared with $125 million for the first nine months of 2015 from its subsidiary bank. Duringbanks. In addition, during the first sixnine months of 2015, the Parent received $90 million from its subsidiaries for dividends on common stock and return of common equity and $21$31 million from dividends on preferred stock.stock from its subsidiary banks. At JuneSeptember 30, 2016, ZB, N.A. had approximately $564$621 million available for the payment of dividends under current capital regulations. The dividends that ZB, N.A. can pay to the Parent are restricted by current and historical earning levels, retained earnings, and risk-based and other regulatory capital requirements and limitations.
General financial market and economic conditions impact our access to, and cost of, external financing. Access to funding markets for the Parent and its subsidiary banksbank is also directly affected by the credit ratings received from various rating agencies. The ratings not only influence the costs associated with the borrowings, but can also influence the sources of the borrowings. The debt ratings and outlooks issued by the various rating agencies for the Company and ZB, N.A. did not change during the first sixnine months of 2016, except Moody’s and Fitch upgraded the Company’s outlook to positive from stable. Standard & Poor’s, Fitch, Dominion Bond Rating Service, and Kroll all rate the Company’s senior debt at an investment-grade level, while Moody’s rates the Company’s senior debt as Ba1 (one notch below investment-grade). In addition, all of the previously mentioned rating agencies, except Kroll, rate the Company’s subordinated debt as noninvestment-grade.

ZIONS BANCORPORATION AND SUBSIDIARIES

The following schedule presents the Parent’s balance sheets as of JuneSeptember 30, 2016, December 31, 2015, and JuneSeptember 30, 2015.
PARENT ONLY CONDENSED BALANCE SHEETS
(In thousands)June 30,
2016
 December 31,
2015
 June 30,
2015
September 30,
2016
 December 31,
2015
 September 30,
2015
ASSETS          
Cash and due from banks$2,021
 $18,375
 $19,489
$39
 $18,375
 $19,105
Interest-bearing deposits562,169
 775,649
 643,001
415,162
 775,649
 478,136
Security resell agreements
 100,000
 500,000

 100,000
 650,000
Investment securities:          
Available-for-sale, at fair value41,333
 45,168
 46,838
40,756
 45,168
 45,889
Other noninterest-bearing investments29,246
 28,178
 34,310
29,066
 28,178
 31,998
Investments in subsidiaries:          
Commercial bank7,572,320
 7,312,654
 7,223,523
7,617,242
 7,312,654
 7,308,673
Other subsidiaries79,661
 84,010
 90,449
80,628
 84,010
 86,725
Receivables from subsidiaries:          
Commercial bank
 
 6,000

 
 6,000
Other subsidiaries60
 60
 60
60
 60
 60
Other assets161,894
 78,728
 88,609
152,806
 78,728
 72,844
$8,448,704
 $8,442,822
 $8,652,279
$8,335,759
 $8,442,822
 $8,699,430
LIABILITIES AND SHAREHOLDERS’ EQUITY          
Other liabilities$124,436
 $123,849
 $77,585
$86,851
 $123,849
 $122,691
Subordinated debt to affiliated trusts164,950
 164,950
 164,950
36,083
 164,950
 164,950
Long-term debt:          
Due to affiliates
 
 22

 
 50
Due to others532,935
 646,504
 879,547
533,518
 646,504
 773,644
Total liabilities822,321
 935,303
 1,122,104
656,452
 935,303
 1,061,335
Shareholders’ equity:          
Preferred stock709,601
 828,490
 1,004,032
709,601
 828,490
 1,004,159
Common stock4,783,061
 4,766,731
 4,738,272
4,747,912
 4,766,731
 4,756,288
Retained earnings2,110,069
 1,966,910
 1,823,043
2,211,793
 1,966,910
 1,894,623
Accumulated other comprehensive income (loss)23,652
 (54,612) (35,172)10,001
 (54,612) (16,975)
Total shareholders’ equity7,626,383
 7,507,519
 7,530,175
7,679,307
 7,507,519
 7,638,095
$8,448,704
 $8,442,822
 $8,652,279
$8,335,759
 $8,442,822
 $8,699,430
The Parent’s cash payments for interest, reflected in operating expenses, decreased to $19$25 million during the first sixnine months of 2016 from $24$33 million during the first sixnine months of 2015 due to the maturity and repayment of debt during 2016 and 2015. Additionally, the Parent paid approximately $50$81 million of total dividends on preferred stock and common stock for the first sixnine months of 2016 compared to $52 million for the first six months ofand 2015.
Subsidiary Bank Liquidity
ZB, N.A.’s primary source of funding is its core deposits, consisting of demand, savings and money market deposits, and time deposits under $250,000. On a consolidated basis, the Company’s loan to total deposit ratio increased towas 83.7% at September 30, 2016 compared with 84.5% at June 30, 2016 compared with 83.0% at March 31, 2016 and 80.7% at December 31, 2015.
Total deposits decreasedincreased by $103$475 million to $50.3$50.8 billion at JuneSeptember 30, 2016, compared towith $50.4 billion at December 31, 2015. This decreaseincrease was primarily as a result of a $177$463 million increase in time deposits $100 million and over and a $434 million increase in noninterest-bearing deposits. This increase was partially offset by a $176 million decrease in foreign deposits, and a $131$169 million decrease in savings and money market deposits, and a $53$77 million decrease in time deposits under $100 million. This decrease was partially offset by a $258 million increase in time deposits $100 million and over. Also, during the first sixnine months of 2016, ZB, N.A. redeployed approximately $2.3$3.9 billion of cash to short-to-medium duration agency guaranteed mortgage-backed securities. ZB, N.A.’s long-term senior debt ratings were the same as the Parent, except Standard & Poor’s was BBB and Kroll’s was BBB+, compared to BBB- for Standard & Poor’s and BBB for Kroll for the Company.

ZIONS BANCORPORATION AND SUBSIDIARIES

The FHLB system and Federal Reserve Banks have been and are a source of back-up liquidity, and from time to time, have been a significant source of funding. ZB, N.A. is a member of the FHLB of Des Moines. The FHLB allows member banks to borrow against their eligible loans to satisfy liquidity and funding requirements. The bank is required to invest in FHLB and Federal Reserve stock to maintain their borrowing capacity.
At JuneSeptember 30, 2016, the amount available for additional FHLB and Federal Reserve borrowings was approximately $17.0$16.5 billion, compared towith $13.4 billion at December 31, 2015. Loans with a carrying value of approximately $26.0$25.9 billion at JuneSeptember 30, 2016 have been pledged at the Federal Reserve and the FHLB of Des Moines as collateral for current and potential borrowings compared towith $19.4 billion at December 31, 2015 at the Federal Reserve and various FHLBs. WeAt September 30, 2016, we had $750 million of short-term FHLB borrowings outstanding and no longlong-term FHLB or short-termFederal Reserve borrowings outstanding, compared with no short or long-term FHLB or Federal Reserve borrowings outstanding at June 30, 2016 or December 31, 2015. The $750 million of short-term FHLB borrowings matured and was repaid during October 2016. At JuneSeptember 30, 2016, our total investment in FHLB and Federal Reserve stock was $10$40 million and $181 million, respectively, compared towith $68 million and $123 million at December 31, 2015.
Our investment activities can provide or use cash, depending on the asset liability management posture taken. During the first sixnine months of 2016, HTM and AFS investment securities’ activities resulted in a net increase in investment securities and a net $2.0$2.9 billion decrease in cash, compared with a net $740 million$2.1 billion decrease in cash for the first sixnine months of 2015, reflecting our continued purchase of HQLAs.
Maturing balances in ZB, N.A.’s loan portfolios also provide additional flexibility in managing cash flows. Lending and purchase activity for the first sixnine months of 2016 resulted in a net cash outflow of $1.9 billion compared towith a net cash inflowoutflow of $48$75 million for the first sixnine months of 2015.
A more comprehensive discussion of liquidity management is contained in our 2015 Annual Report on Form 10-K.
Operational Risk Management
Operational risk is the risk to current or anticipated earnings or capital arising from inadequate or failed internal processes or systems, human errors or misconduct, or adverse external events. In our ongoing efforts to identify and manage operational risk, we have an ERM department whose responsibility is to help employees, management and the Board of Directors to assess, understand, measure, and monitor risk in accordance with our Risk Appetite Framework. We have documented both controls and the Control Self-Assessment related to financial reporting under the 2013 framework issued by the Committee of Sponsoring Organizations of the Treadway Commission (“COSO”) and the Federal Deposit Insurance Corporation Improvement Act of 1991.
To manage and minimize our operational risk, we have in place transactional documentation requirements; systems and procedures to monitor transactions and positions; systems and procedures to detect and mitigate attempts to commit fraud, penetrate our systems or telecommunications, access customer data, and/or deny normal access to those systems to our legitimate customers; regulatory compliance reviews; and periodic reviews by the Company’s Internal Audit and Credit Examination departments. Reconciliation procedures have been established to ensure that data processing systems consistently and accurately capture critical data. Further, we undertake significant efforts to maintain contingency and business continuity plans for operational support in the event of natural or other disasters. We also mitigate operational risk through the purchase of insurance, including errors and omissions and professional liability insurance.
We are continually improving our oversight of operational risk, including enhancement of risk identification, risk and control self-assessments, and antifraud measures, which are reported on a regular basis to enterprise management committees. The Operational Risk Committee reports to the ERMC, which reports to the ROC. Additional measures have been taken to increase oversight by ERM and Operational Risk Management through the strengthening of new productinitiative reviews, enhancements to the Vendor Management and Vendor Risk Management framework, enhancements to the Business Continuity and Disaster Recovery program, and the establishment of Fraud Risk Oversight, Incident Response Oversight and Technology Project Oversight programs. Significant

ZIONS BANCORPORATION AND SUBSIDIARIES

enhancements have also been made to governance and reporting, including the establishment of Policy and Committee Governance programs and the creation of an Enterprise Risk Profile and Operational Risk Profile.

ZIONS BANCORPORATION AND SUBSIDIARIES

The number and sophistication of attempts to disrupt or penetrate our critical systems, sometimes referred to as hacking, cyberfraud, cyberattacks, cyberterrorism, or other similar names, also continue to grow. On a daily basis, the Company, its customers, and other financial institutions are subject to a large number of such attempts. We have established systems and procedures to monitor, thwart or mitigate damage from such attempts. However, in some instances we, or our customers, have been victimized by cyberfraud (our related losses have not been material), or some of our customers have been temporarily unable to routinely access our online systems as a result of, for example, distributed denial of service attacks. We continue to review this area of our operations to help ensure that we manage this risk in an effective manner
CAPITAL MANAGEMENT
We believe that a strong capital position is vital to continued profitability and to promoting depositor and investor confidence.
Capital Plan and Stress Tests
As a bank holding company with assets greater than $50 billion, we are required by the Dodd-Frank Act to participate in annual stress tests known as the Dodd-Frank Act Stress Test (“DFAST”) and Federal Reserve’s Comprehensive Capital Analysis and Review (“CCAR”). We timely submitted our stress test results and 2016 capital plan to the FRB on April 5, 2016. In our capital plan, we were required to forecast, under a variety of economic scenarios, for nine quarters ending the first quarter of 2018, our estimated regulatory capital ratios, including our Common Equity Tier 1 (“CET1”) ratio. Under the implementing regulations for CCAR, a bank holding company may generally raise and redeem capital, pay dividends, and repurchase stock and take similar capital-related actions only under a capital plan as to which the FRB has not objected.
On June 23, 2016 we filed ana Form 8-K presenting the results of the 2016 DFAST. The results of the stress test demonstrated that the Company has sufficient capital to withstand a severe economic downturn. Detailed disclosure of the stress test results can also be found on our website. In addition, we submitted our Dodd-Frank Act mid-cycle stress test, based upon the Company’s June 30, 2016 financial position, is due on October 5, 2016.
On June 29, 2016 we filed ana Form 8-K announcing that the Federal Reserve did not object to our 2016 capital plan. The plan included (1) the increase of the quarterly common dividend to $0.08 per share beginning in the third quarter of 2016, (2) up to $180 million in total repurchases of common equity and (3) up to $144 million in total repurchases of preferred equity. These capital actionactions are expected to reduce fixed chargespreferred dividends and improve the Company’s return on equity.
In July 2016, we announced that our board of directors approved (1) a quarterly dividend of $0.08 per common share in August 2016 and (2) the commencement of a stock buyback program, including $45 million in the third quarter of 2016. See subsequent discussion regarding the buyback of Company common stock during the fourth quarter of 2016. The ultimate determination of future reductions of common and/or preferred stock will depend on a number of factors, including actual earnings performance, market conditions, and the receptivity of investors to the terms of any preferred stock redemption offers, as well as the effect of other steps we may explore as we seek to manage our capital, any of which could result in a reduction or delay of preferred or reduction in the amount of common or preferred equity redemptions, repurchases, or dividend increases. Consistent with our capital plan we expect to manage any reduction of common or preferred equity such that total tier 1 capital does not decline materially.
On April 25, 2016, we launched tender offers for up to $120 million par amount of certain outstanding shares of preferred stock. This $120 million is the remaining amount of the $300 million total reduction of preferred stock that was included in our 2015 capital plan, to which the Federal Reserve did not object. On May 23, 2016, we announced the results of the preferred stock tender offers. Preferred stock was reduced by $119 million, including $27 million, $59 million, and $33 million for Series I, J, and G, respectively. As a result of the preferred stock redemption, preferred dividends are expected to be $10.4 million for the third quarter of 2016 and first quarter of 2017 and are expected to be $12.4 million for the fourth quarter of 2016 and the second quarter of 2017, and are expected to be $10.4 million for the first quarter of 2017.

ZIONS BANCORPORATION AND SUBSIDIARIES

Basel III
The Basel III capital rules, which effectively replaced the Basel I rules, became effective for the Company on January 1, 2015 (subject to phase-in periods for certain of their components). Basel III requirements established a new comprehensive capital framework for U.S. banking organizations. We met all capital adequacy requirements under the Basel III Capital Rules based upon phase-in rules as of JuneSeptember 30, 2016, and believe that we would meet all capital adequacy requirements on a fully phased-in basis if such requirements were currently effective.
A detailed discussion of Basel III requirements, including implications for the Company, is contained on page 9 in “Capital Standards – Basel Framework” under Part 1, Item 1 in our 2015 Annual Report on Form 10-K.
Capital Management Actions
Total shareholders’ equity increased by $0.1$0.2 billion to $7.6$7.7 billion at JuneSeptember 30, 2016 from $7.5 billion at December 31, 2015. The increase in total shareholders’ equity is primarily due to net income of $204$332 million and to an improvement of $78$54 million in the fair value of the Company’s AFS securities portfolio due largely to changes in the interest rate environment, partially offset by $126 million paid to purchase and redeem our preferred stock as a result of our tender offer, and $50$81 million of dividends recordedpaid on preferred and common stock.stock, and repurchases of our common stock totaling $45 million. Since September 30, 2016, the Company has repurchased $45 million of our common stock, leaving $90 million of buyback capacity remaining in the 2016 capital plan (which spans the timeframe of July 2016 to June 2017).
Our quarterly dividend on common stock remained at $0.06increased to $0.08 per share during the secondthird quarter of 2016. The quarterly dividend rate was increased tohad been $0.06 per share duringsince the second quarter of 2015 from $0.04 per share.2015. We paid $24.8$41.4 million in dividends on common stock during the first sixnine months of 2016 compared with $20.5$32.8 million during the first sixnine months of 2015. During its JulyOctober 2016 meeting, the Board of Directors declared a quarterly dividend of $0.08 per common share payable on August 25,November 23, 2016 to shareholders of record on August 18,November 16, 2016.
We recordedpaid dividends on preferred stock of $25.2$39.7 million and $31.8$46.9 million for the first sixnine months of 2016 and 2015, respectively. We also recorded a one-time $9.8 million reduction to net earnings applicable to common shareholders as a result of the preferred stock redemption.redemption during the second quarter of 2016.
See Note 8 for additional detail about capital management transactions during the first nine months of 2016.
Capital Ratios
Banking organizations are required by capital regulations to maintain adequate levels of capital as measured by several regulatory capital ratios.
The following schedule shows the Company’s capital and performance ratios as of JuneSeptember 30, 2016, December 31, 2015, and JuneSeptember 30, 2015.
CAPITAL RATIOS
June 30,
2016
 December 31,
2015
 June 30,
2015
September 30,
2016
 December 31,
2015
 September 30,
2015
          
Tangible common equity ratio10.05% 9.63% 9.58 %9.91% 9.63% 9.76%
Tangible equity ratio11.26% 11.05% 11.33 %11.09% 11.05% 11.51%
Average equity to average assets (three months ended)12.87% 12.93% 13.04 %12.81% 12.93% 13.11%
Basel III risk-based capital ratios1:
          
Common equity tier 1 capital11.98% 12.22% 12.00 %12.04% 12.22% 12.16%
Tier 1 leverage11.25% 11.26% 11.65 %11.27% 11.26% 11.63%
Tier 1 risk-based13.42% 14.08% 14.26 %13.48% 14.08% 11.41%
Total risk-based15.50% 16.12% 16.32 %15.31% 16.12% 16.46%
Return on average common equity (three months ended)5.30% 5.17% (0.07)%6.66% 5.17% 5.02%
Tangible return on average tangible common equity (three months ended)6.31% 6.20% 0.03 %7.88% 6.20% 6.05%
 
1 
Based on the applicable phase-in periods.

ZIONS BANCORPORATION AND SUBSIDIARIES

At Juneboth September 30, 2016 and December 31, 2015, Basel III regulatory tier 1 risk-based capital and total risk-based capital was $6.6 billion and $7.6 billion, respectively, compared to $6.6 billion and $7.5 billion, respectively as of December 31, 2015.respectively. A more comprehensive discussion of our capital management is contained in our 2015 Annual Report on
Form 10-K.

Table of Contents
ZIONS BANCORPORATION AND SUBSIDIARIES

GAAP to NON-GAAP RECONCILIATIONS
1. Tangible return on average tangible common equity
This Form 10-Q presents “tangible return on average tangible common equity” which excludes, net of tax, the amortization of core deposit and other intangibles from net earnings applicable to common shareholders, and average goodwill and core deposit and other intangibles from average common equity.
TANGIBLE RETURN ON AVERAGE TANGIBLE COMMON EQUITY (NON-GAAP)
 Three Months Ended Three Months Ended
(Amounts in thousands) June 30,
2016
 December 31,
2015
 June 30,
2015
 September 30,
2016
 December 31,
2015
 September 30,
2015
            
Net earnings (loss) applicable to common shareholders (GAAP) $90,647
 $88,197
 $(1,100)
Net earnings applicable to common shareholders (GAAP) $116,895
 $88,197
 $84,238
Adjustment, net of tax:            
Amortization of core deposit and other intangibles 1,227
 1,446
 1,472
 1,210
 1,446
 1,461
Net earnings applicable to common shareholders, excluding the effects of the adjustment, net of tax (non-GAAP)(a)$91,874
 $89,643

$372
(a)$118,105
 $89,643

$85,699
            
Average common equity (GAAP) $6,883,065
 $6,765,737
 $6,492,865
 $6,986,376
 $6,765,737
 $6,655,513
Average goodwill (1,014,129) (1,014,129) (1,014,129) (1,014,129) (1,014,129) (1,014,129)
Average core deposit and other intangibles (13,527) (17,453) (22,135) (11,576) (17,453) (19,726)
Average tangible common equity (non-GAAP)(b)$5,855,409
 $5,734,155
 $5,456,601
(b)$5,960,671
 $5,734,155
 $5,621,658
            
Number of days in quarter(c)91
 92
 91
(c)92
 92
 92
Number of days in year(d)366
 365
 365
(d)366
 365
 365
            
Tangible return on average tangible common equity (non-GAAP)(a/b/c)*d6.31% 6.20% 0.03%(a/b/c)*d7.88% 6.20% 6.05%
2. Total shareholders’ equity to tangible equity and tangible common equity
This Form 10-Q presents “tangible equity” and “tangible common equity” which excludes goodwill and core deposit and other intangibles for both measures and preferred stock for tangible common equity.
TANGIBLE EQUITY (NON-GAAP) AND TANGIBLE COMMON EQUITY (NON-GAAP)
(Amounts in thousands) June 30,
2016
 December 31,
2015
 June 30,
2015
 September 30,
2016
 December 31,
2015
 September 30,
2015
            
Total shareholders’ equity (GAAP) $7,626,383
 $7,507,519
 $7,530,175
 $7,679,307
 $7,507,519
 $7,638,095
Goodwill (1,014,129) (1,014,129) (1,014,129) (1,014,129) (1,014,129) (1,014,129)
Core deposit and other intangibles (12,281) (16,272) (20,843) (10,329) (16,272) (18,546)
Tangible equity (non-GAAP)(a)6,599,973
 6,477,118
 6,495,203
(a)6,654,849
 6,477,118
 6,605,420
Preferred stock (709,601) (828,490) (1,004,032) (709,601) (828,490) (1,004,159)
Tangible common equity (non-GAAP)(b)$5,890,372
 $5,648,628
 $5,491,171
(b)$5,945,248
 $5,648,628
 $5,601,261
            
Total assets (GAAP) $59,642,992
 $59,664,543
 $58,360,005
 $61,038,860
 $59,664,543
 $58,405,718
Goodwill (1,014,129) (1,014,129) (1,014,129) (1,014,129) (1,014,129) (1,014,129)
Core deposit and other intangibles (12,281) (16,272) (20,843) (10,329) (16,272) (18,546)
Tangible assets (non-GAAP)(c)$58,616,582
 $58,634,142
 $57,325,033
(c)$60,014,402
 $58,634,142
 $57,373,043
            
Common shares outstanding(d)205,104
 204,417
 203,741
(d)203,850
 204,417
 204,279
Tangible equity ratio(a/c)11.26% 11.05% 11.33%(a/c)11.09% 11.05% 11.51%
Tangible common equity ratio(b/c)10.05% 9.63% 9.58%(b/c)9.91% 9.63% 9.76%
Tangible book value per common share(b/d)$28.72
 $27.63
 $26.95
(b/d)$29.16
 $27.63
 $27.42

ZIONS BANCORPORATION AND SUBSIDIARIES

3. Efficiency ratio and adjusted pre-provision net revenue
This Form 10-Q presents calculations of “efficiency ratio” and adjusted PPNR that include adjustments for certain line items and amounts in noninterest expense and noninterest income. The following schedule provides a reconciliation of noninterest expense (GAAP), taxable-equivalent net interest income (GAAP) and noninterest income (GAAP) to the efficiency ratio (non-GAAP) and adjusted PPNR (non-GAAP). The schedule also shows the efficiency ratio and adjusted PPNR for six-month time periods, in addition to the three-month periods, in order to illustrate the trend over longer periods as quarterly fluctuations may not be reflective of the prevailing trend, while annual results may not accurately reflect the pace of change. We show a nine-month efficiency ratio to illustrate the progress towards our annual target.
EFFICIENCY RATIO AND ADJUSTED PRE-PROVISION NET REVENUE
(Amounts in thousands) Three Months Ended
 Six Months Ended Three Months Ended Six Months Ended Nine Months Ended
June 30,
2016
 March 31,
2016
 June 30,
2015
 June 30,
2016
 March 31,
2016
 June 30,
2015
September 30,
2016
 June 30,
2016
 September 30,
2015
 September 30,
2016
 September 30,
2015
 September 30,
2016
                        
Noninterest expense (GAAP)(a)$381,894
 $395,573
 $398,997
 $777,467
 $792,926
 $791,974
(a)$403,292
 $381,894
 $391,280
 $785,186
 $790,277
 $1,180,759
Adjustments:                        
Severance costs 201
 3,471
 1,707
 3,672
 7,052
 3,960
 481
 201
 3,464
 682
 5,171
 4,153
Other real estate expense, net (527) (1,329) (445) (1,856) (1,865) (71) (137) (527) (40) (664) (485) (1,993)
Provision for unfunded lending commitments (4,246) (5,812) (2,326) (10,058) (12,363) (1,115) (3,165) (4,246) 1,428
 (7,411) (898) (13,223)
Debt extinguishment cost 106
 247
 2,395
 353
 382
 2,395
 
 106
 
 106
 2,395
 353
Amortization of core deposit and other intangibles 1,979
 2,014
 2,318
 3,993
 4,287
 4,676
 1,951
 1,979
 2,298
 3,930
 4,616
 5,944
Restructuring costs 47
 996
 679
 1,043
 1,773
 1,445
 356
 47
 1,630
 403
 2,309
 1,399
Total adjustments(b)(2,440) (413) 4,328
 (2,853) (734) 11,290
(b)(514) (2,440) 8,780
 (2,954) 13,108
 (3,367)
Adjusted noninterest expense
(non-GAAP)
(a-b)=(c)$384,334
 $395,986
 $394,669
 $780,320
 $793,660
 $780,684
(a-b)=(c)$403,806
 $384,334
 $382,500
 $788,140
 $777,169
 $1,184,126
Taxable-equivalent net interest income (GAAP)(d)$470,913
 $458,242
 $428,015
 $929,155
 $912,022
 $849,596
(d)$475,699
 $470,913
 $429,782
 $946,612
 $857,797
 $1,404,854
Noninterest income (GAAP)(e)125,717
 116,761
 (4,682) 242,478
 235,402
 112,656
(e)144,887
 125,717
 125,944
 270,604
 121,262
 387,365
Combined income(d+e)=(f)596,630
 575,003
 423,333
 1,171,633
 1,147,424
 962,252
(d+e)=(f)620,586
 596,630
 555,726
 1,217,216
 979,059
 1,792,219
Adjustments:                        
Fair value and nonhedge derivative income (loss) (1,910) (2,585) 1,844
 (4,495) (1,897) 756
 (184) (1,910) (1,555) (2,094) 289
 (4,679)
Equity securities gains (loss), net 2,709
 (550) 4,839
 2,159
 (497) 8,192
Equity securities gains, net 8,441
 2,709
 3,630
 11,150
 8,469
 10,600
Fixed income securities gains (losses), net 25
 28
 (138,436) 53
 21
 (138,675) 39
 25
 (53) 64
 (138,489) 92
Total adjustments(g)824
 (3,107) (131,753) (2,283) (2,373) (129,727)(g)8,296
 824
 2,022
 9,120
 (129,731) 6,013
Adjusted taxable-equivalent revenue (non-GAAP)(f-g)=(h)$595,806
 $578,110
 $555,086
 $1,173,916
 $1,149,797
 $1,091,979
(f-g)=(h)$612,290
 $595,806
 $553,704
 $1,208,096
 $1,108,790
 $1,786,206
Adjusted pre-provision net revenue (PPNR)(h-c)$211,472
 $182,124
 $160,417
 $393,596
 $356,137
 $311,295
(h-c)$208,484
 $211,472
 $171,204
 $419,956
 $331,621
 $602,080
Efficiency ratio 1
(c/h)64.5% 68.5% 71.1% 66.5% 69.0% 71.5%(c/h)66.0% 64.5% 69.1% 65.2% 70.1% 66.3%
1During the first quarter of 2016, to be consistent with industry practice, we reclassified bankcard rewards expense from non-interestnoninterest expense into non-interestnoninterest income in order to offset the associated revenue (interchange fees) to align with industry practice. This reclassification within other service charges, commission and fees lowered noninterest income in the first quarter of 2016 (and also decreased other noninterest expense by the same amount). For comparative purposes we also adjusted prior period amounts. This reclassification had no impact on net income.
The identified adjustments to reconcile from the applicable GAAP financial measures to the non-GAAP financial measures are included where applicable in financial results or in the balance sheet presented in accordance with GAAP. We consider these adjustments to be relevant to ongoing operating results and financial position.
We believe that excluding the amounts associated with these adjustments to present the non-GAAP financial measures provides a meaningful base for period-to-period and company-to-company comparisons, which will assist

ZIONS BANCORPORATION AND SUBSIDIARIES

regulators, investors, and analysts in analyzing our operating results or financial position and in predicting future performance. These non-GAAP financial measures are used by management to assess the performance of the Company’s business or its financial position for evaluating bank reporting segment performance, for presentations of our performance to investors, and for other reasons as may be requested by investors and analysts. We further believe that presenting these non-GAAP financial measures will permit investors and analysts to assess our performance on the same basis as that applied by management.
Non-GAAP financial measures have inherent limitations, are not required to be uniformly applied, and are not audited. Although these non-GAAP financial measures are frequently used by stakeholders to evaluate a company, they have limitations as an analytical tool, and should not be considered in isolation or as a substitute for analysis of results reported under GAAP.
ITEM 3.QUANTITATIVE AND QUALITATIVE DISCLOSURES ABOUT MARKET RISK
Interest rate and market risks are among the most significant risks regularly undertaken by us, and they are closely monitored as previously discussed. A discussion regarding our management of interest rate and market risk is included in the section entitled “Interest Rate and Market Risk Management” in this Form 10-Q.
ITEM 4.CONTROLS AND PROCEDURES
The Company’s management, with the participation of the Company’s Chief Executive Officer and Chief Financial Officer, has evaluated the effectiveness of the Company’s disclosure controls and procedures as of JuneSeptember 30, 2016. Based on that evaluation, the Company’s Chief Executive Officer and Chief Financial Officer concluded that the Company’s disclosure controls and procedures were effective as of JuneSeptember 30, 2016. There were no changes in the Company’s internal control over financial reporting during the secondthird quarter of 2016 that have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.
PART II.OTHER INFORMATION
ITEM 1.LEGAL PROCEEDINGS
The information contained in Note 11 of the Notes to Consolidated Financial Statements is incorporated by reference herein.
ITEM 1A.RISK FACTORS
We believe there have been no material changes in the risk factors included in Zions Bancorporation’s 2015 Annual Report on Form 10-K.
ITEM 2.UNREGISTERED SALES OF EQUITY SECURITIES AND USE OF PROCEEDS
The following schedule summarizes the Company’s share repurchases for the secondthird quarter of 2016:
SHARE REPURCHASES
Period 
Total number
of shares
repurchased 1
 
Average
price paid
per share
 
Total number of shares
purchased as part of
publicly announced
plans or programs
 
Approximate dollar
value of shares that
may yet be purchased
under the plan
               
April  6,429
  $25.36
  
   $
 
May  179,938
  27.69
  
   
 
June  11,656
  27.89
  
   
 
Second quarter  198,023
  27.63
  
     
Period 
Total number
of shares
repurchased 1
 
Average
price paid
per share
 
Total number of shares
purchased as part of
publicly announced
plans or programs
 
Approximate dollar
value of shares that
may yet be purchased
under the plan
               
July  1,224
  $24.92
  
   $180,000,000
 
August  822
  28.34
  
   180,000,000
 
September  1,471,644
  30.64
  1,468,800
   135,000,000
 
Third quarter  1,473,690
  30.63
  1,468,800
     
1 
Represents common shares acquired from employees in connection with our stock compensation plan. Shares were acquired from employees to pay for their payroll taxes and stock option exercise cost upon the vesting of restricted stock and restricted stock units, and the exercise of stock options, under provisions of an employee share-based compensation plan.


ZIONS BANCORPORATION AND SUBSIDIARIES

ITEM 6.EXHIBITS
a)Exhibits
Exhibit
Number
 Description 
    
3.1 Restated Articles of Incorporation of Zions Bancorporation dated July 8, 2014, incorporated by reference to Exhibit 3.1 of Form 8-K/A filed on July 18, 2014.*
    
3.2 Restated Bylaws of Zions Bancorporation dated February 27, 2015, incorporated by reference to Exhibit 3.2 of Form 10-Q for the quarter ended March 31, 2015.*
    
10.1Zions Bancorporation 2016-2018 Value Sharing Plan (filed herewith).
31.1 Certification by Chief Executive Officer required by Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934 (filed herewith). 
    
31.2 Certification by Chief Financial Officer required by Rules 13a-15(f) and 15d-15(f) under the Securities Exchange Act of 1934 (filed herewith). 
    
32 Certification by Chief Executive Officer and Chief Financial Officer required by Sections 13(a) or 15(d), as applicable, of the Securities Exchange Act of 1934 (15 U.S.C. 78m) and 18 U.S.C. Section 1350 (furnished herewith). 
    
101 
Interactive data files pursuant to Rule 405 of Regulation S-T: (i) the Consolidated Balance Sheets as of JuneSeptember 30, 2016 and December 31, 2015, (ii) the Consolidated Statements of Income for the three months ended JuneSeptember 30, 2016 and JuneSeptember 30, 2015 and the sixnine months ended JuneSeptember 30, 2016 and JuneSeptember 30, 2015, (iii) the Consolidated Statements of Comprehensive Income for the three months ended JuneSeptember 30, 2016 and JuneSeptember 30, 2015 and the sixnine months ended JuneSeptember 30, 2016 and JuneSeptember 30, 2015, (iv) the Consolidated Statements of Changes in Shareholders’ Equity for the sixnine months ended JuneSeptember 30, 2016 and JuneSeptember 30, 2015, (v) the Consolidated Statements of Cash Flows for the three months ended JuneSeptember 30, 2016 and JuneSeptember 30, 2015 and the sixnine months ended JuneSeptember 30, 2016 and JuneSeptember 30, 2015, and (vi) the Notes to Consolidated Financial Statements (filed herewith).
 
* Incorporated by reference


ZIONS BANCORPORATION AND SUBSIDIARIES


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 thereunto duly authorized.

    
 
ZIONS BANCORPORATION
 
/s/ Harris H. Simmons
Harris H. Simmons, Chairman and
Chief Executive Officer
 
/s/ Paul E. Burdiss
Paul E. Burdiss, Executive Vice President and Chief Financial Officer
Date: August 5,November 7, 2016

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