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, 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");

• statements preceded by, followed by or that include the words "may," "could," "should," "would," "believe," "anticipate," "estimate," "expect," "intend," "plan," "projects," or similar expressions.

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 the 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;

• 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 conditions and fiscal imbalances in the United States and other countries, potential or actual downgrades in rating 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 market conditions, either internationally, nationally or locally in areas in which the Company conducts its operations, including without limitation reduced rates of business formation and growth, commercial and residential real estate development and real estate prices;

• fluctuations in markets for equity, fixed-income, commercial paper and other securities, including availability, market liquidity levels, and pricing;

• 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, and the FDIC;

• the Company's participation in and exit from governmental programs implemented under the EESA and the ARRA, including the TARP and CPP, and the impact of such programs and related regulations on the Company;

• the impact of executive compensation rules under the Dodd-Frank Act, the EESA and the ARRA, 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 of new international standards known as Basel III, and rules and regulations thereunder, many of which have not yet been promulgated, on our required regulatory capital and liquidity levels, governmental assessments on us, 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;

ZIONS BANCORPORATION AND SUBSIDIARIES

• 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;

• the Company's ability to comply with applicable laws and regulations;

• changes in accounting policies or procedures as may be required by the Financial Accounting Standards Board or regulatory agencies; and

• increased 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.

 GLOSSARY OF ACRONYMS
ABS            Asset-Backed Security           HTM        Held-to-Maturity
ACL            Allowance for Credit Losses     IA         Indemnification Asset
                                                          International Financial
AFS            Available-for-Sale              IFRS       Reporting Standards
                                                          International Swap Dealer
ALCO           Asset/Liability Committee       ISDA       Association
               Allowance for Loan and Lease
ALLL           Losses                          LIBOR      London Interbank Offered Rate
Amegy          Amegy Corporation               Lockhart   Lockhart Funding LLC
               Accumulated Other Comprehensive
AOCI           Income                          NBA        National Bank of Arizona
               American Recovery and
ARRA           Reinvestment Act                NOW        Negotiable Order of Withdrawal
ASC            Accounting Standards            NRSRO      Nationally Recognized
               Codification                               Statistical Rating Organization
ASU            Accounting Standards Update     NSB        Nevada State Bank
                                                          Office of the Comptroller of
ATM            Automated Teller Machine        OCC        the Currency
bps            Basis Points                    OCI        Other Comprehensive Income
CB&T           California Bank & Trust         OREO       Other Real Estate Owned
CDO            Collateralized Debt Obligation  OTC        Over-the-Counter
CDR            Constant Default Rate           OTTI       Other-Than-Temporary Impairment
CLTV           Combined Loan-to-Value Ratio    Parent     Zions Bancorporation
CPP            Capital Purchase Program        PCI        Purchased Credit-Impaired
CPR            Constant Prepayment Rate        PD         Probability of Default
CRE            Commercial Real Estate          PIK        Payment in Kind
DB             Deutsche Bank AG                REIT       Real Estate Investment Trust
                                                          Reserve for Unfunded Lending
DBRS           Dominion Bond Rating Service    RULC       Commitments
               Dodd-Frank Wall Street Reform   SBA        Small Business Administration
Dodd-Frank Act and Consumer Protection Act
DTA                                            SBIC       Small Business Investment
               Deferred Tax Asset                         Company
                                                          Securities and Exchange
DTL            Deferred Tax Liability          SEC        Commission
               Emergency Economic
EESA           Stabilization Act               TARP       Troubled Asset Relief Program
FAMC           Federal Agricultural Mortgage   TCBO       The Commerce Bank of Oregon
               Corporation, or "Farmer Mac"
FASB           Financial Accounting Standards  TCBW       The Commerce Bank of Washington
               Board
               Federal Deposit Insurance
FDIC           Corporation                     TDR        Troubled Debt Restructuring
FHLB           Federal Home Loan Bank          TRS        Total Return Swap
FICO           Fair Isaac Corporation          Vectra     Vectra Bank Colorado
FRB            Federal Reserve Board           Zions Bank Zions First National Bank
               Generally Accepted Accounting              Zions Management Services
GAAP           Principles                      ZMSC       Company
HECL           Home Equity Credit Line

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 2011 Annual Report on Form 10-K.

RESULTS OF OPERATIONS

The Company reported net earnings applicable to common shareholders of $55.2 million, or $0.30 per diluted share for the second quarter of 2012, compared to net earnings applicable to common shareholders of $29.0 million, or $0.16 per diluted share for the same prior year period. The significant improvement in net earnings was mainly caused by the following favorable changes:

• $15.8 million increase in net interest income;

• $11.5 million decrease in other real estate expense;

• $7.9 million increase in fixed income securities gains;

• $7.3 million reduction in preferred stock dividends; and

• $5.3 million decline in other noninterest expense.

The impact of these items was partially offset by the following:

• $11.0 million decrease in fair value and nonhedge derivative income;

• $9.5 million increase in the provision for loan losses;

• $6.8 million increase in the provision for unfunded lending commitments; and

• $5.4 million decline in other service charges, commissions, and fees.

Net earnings applicable to common shareholders for the first six months of 2012 were $80.7 million, or $0.44 per diluted share, compared to net earnings applicable to common shareholders of $43.8 million, or $0.24 per diluted share in the corresponding prior year period. The improved result reflects the following:

• $34.8 million decrease in the provision for loan losses;

• $34.3 million increase in net interest income;

• $27.8 million reduction in other real estate expense;

• $18.0 million reduction in FDIC premiums; and

• $10.0 million increase in equity securities gains.

The impact of these items was partially offset by the following:

• $18.8 million increase in preferred stock dividends;

• $18.5 million decrease in other noninterest income;

• $16.6 million decline in fair value and nonhedge derivative income;

• $12.9 million reduction in other service charges, commissions, and fees;

• $12.6 million increase in the provision for unfunded lending commitments; and

• $11.5 million increase in income taxes.

During 2009, the Company executed a subordinated debt modification and exchange transaction. The original discount on the convertible subordinated debt was $679 million and the remaining discount at June 30, 2012 was $174 million. It included the following components:

• the fair value discount on the debt; and

• the value of the beneficial conversion feature which added the right of the debt holder to convert the debt into preferred stock.

The discount associated with the convertible subordinated debt is amortized to interest expense using the interest method over the remaining term of the subordinated debt (referred to herein as "discount amortization"). When holders of the convertible subordinated notes convert to preferred stock, the rate of amortization is accelerated by immediately expensing any unamortized discount associated with the converted debt (referred to herein as "accelerated discount amortization").

ZIONS BANCORPORATION AND SUBSIDIARIES




Excluding the impact of these noncash expenses, income before income taxes and
subordinated debt conversions for the second quarter of 2012 was $169.4 million
compared to $199.7 million for the second quarter of 2011.
                                                                      Three Months Ended
(In millions)                         June 30,       March 31,        December 31,         September 30,        June 30,
                                        2012           2012               2011                 2011               2011
Income before income taxes (GAAP)   $    142.5     $     141.3        $     136.6          $      168.1       $    126.9
Convertible subordinated debt
discount amortization                     10.7            11.1               10.8                  10.7             11.4
Accelerated convertible
subordinated debt discount
amortization                              16.2            12.2                5.8                   7.4             61.4
Income before income taxes and
subordinated debt conversions
(non-GAAP)                          $    169.4     $     164.6        $     153.2          $      186.2       $    199.7

The impact of the conversion of subordinated debt into preferred stock is further discussed in the "Capital Management" section. Net Interest Income, Margin and Interest Rate Spreads Net interest income is the difference between interest earned on interest-earning assets and interest incurred on interest-bearing liabilities. Taxable-equivalent net interest income is the largest portion of Zions' revenue. For the second quarter of 2012, taxable-equivalent net interest income was $436.6 million, compared to $447.2 million for the first quarter of 2012, and $421.2 million in the second quarter of 2011. The tax rate used for calculating all taxable-equivalent adjustments was 35% for all periods presented.

A gauge that we use to measure the Company's success in managing its net interest income is the level and stability of the net interest margin. The net interest margin was 3.62% and 3.73% for the second and first quarters of 2012, respectively, and 3.62% for the second quarter of 2011. The decreased net interest margin for the second quarter of 2012 compared to the first quarter of 2012 resulted primarily from:

• differences in the amount of amortization and accelerated amortization on convertible subordinated debt, see "Capital Management" for further discussion;

• issuances of long-term debt;

• changes in the composition of interest-earning assets;

• interest rate resets on older-vintage, longer-term adjustable rate loans;

• new loans originated at lower rates; and

• lower cost of interest-bearing deposits only partially offsetting the impact of the previous items.

Low-yielding money market investments increased to 16.0% of average interest-earning assets for the second quarter of 2012, compared to 15.1% and 10.3% for the first quarter of 2012 and second quarter of 2011, respectively. The average rate earned on money market investments remained stable when compared to the same prior year period. See "Interest Rate and Market Risk Management" for further discussion of how we manage the portfolios of interest-earning assets, interest-bearing liabilities, and associated risk. The average interest rate earned on net loans and leases, excluding FDIC-supported loans, declined 40 basis points to 5.07% in the second quarter of 2012 from 5.47% in the corresponding prior year period. The two factors that primarily caused this decrease are (1) adjustable rate loans originated in the past resetting to lower rates due to the current repricing index being lower than the rate when the loans were originated, and (2) maturing loans, many of which had rate floors, being replaced with new loans at lower original coupons and/or lower floors compared to the rates at which loans were originated when spreads were higher. Average total loans and leases were stable when compared to both the first quarter of 2012 and the second quarter of 2011.

Our total cost of funding remained stable in the second quarter of 2012 compared to the first quarter of 2012 and declined compared to second quarter of 2011, due to a favorable change in the mix of funding sources and a decline in rates on interest-bearing liabilities. Average noninterest-bearing deposits increased to $16.2 billion (35.0% of total average liabilities) in the second quarter of 2012, compared to $15.7 billion (34.4% of total average liabilities) in the prior quarter and $14.2 billion (32.1% of total average liabilities) in the second quarter of 2011. Average borrowed funds increased by 2.1% but the average rate paid decreased by 638 basis points from the corresponding prior year period, primarily due to decreased accelerated discount amortization expense resulting from the fact that fewer holders of convertible debt elected to convert their holdings to

ZIONS BANCORPORATION AND SUBSIDIARIES

preferred stock. Average interest-bearing deposits remained stable when compared to the second quarter of 2011.

The Company believes that its "core net interest margin" is more reflective of its operating performance than the reported net interest margin. We calculate the core net interest margin by excluding the impact of discount amortization on convertible subordinated debt, accelerated discount amortization on convertible subordinated debt, and additional accretion of interest income on acquired loans from the net interest margin. The core net interest margin was 3.72% for the second quarter of 2012 and 4.07% for the second quarter of 2011 due to the previously discussed changes in asset and funding mix and pricing. See "GAAP to non-GAAP Reconciliations" for a reconciliation between the GAAP net interest margin and the non-GAAP core net interest margin.

The spread on average interest-bearing funds was 3.16% and 3.29% for the second and first quarters of 2012, respectively, and 2.90% for the second quarter of 2011. The spread on average interest-bearing funds for the second quarter of 2012 was affected by most of the same factors that had an impact on the net interest margin.

The average interest rate earned on the securities portfolio increased by 99 bps to 3.82% for the second quarter of 2012 from 2.83% in the comparable prior year period. This increase in the rate earned on the securities portfolio is primarily attributable to the change in the mix of securities and one AFS single issuer trust preferred security, which came current with previously deferred interest. In November 2011, the Company sold $700 million of U.S. Treasury securities, which reduced the balance of lower-yielding securities and increased the yield on the overall securities portfolio. The proceeds were deposited in the Federal Reserve account of a subsidiary bank until the Company made a $700 million TARP preferred stock redemption in March 2012.

We believe the following factors may positively impact the net interest margin in the next several quarters: the decreased level of nonperforming assets, a smaller balance of low-yielding liquid assets, as we plan to use a portion of those assets to redeem the remaining TARP preferred stock in the second half of 2012, and modest loan growth. We believe the following factors may adversely affect the net interest margin: competitive loan pricing conditions, rate resets on loans originated in a higher interest rate environment, expiration of loans with interest rate floors that are "in the money," and the discount amortization related to the debt modification transactions, including the accelerated discount amortization to the extent that holders of the modified debt elect to convert their holdings to preferred stock. On balance, we expect continued modest compression of the net interest margin for several quarters.

The unamortized discount on the convertible subordinated debt was $174 million as of June 30, 2012, or 37.2% of the $467 million of remaining outstanding convertible subordinated notes, and will be amortized to interest expense over the remaining life of the debt using the interest method.

The Company expects to remain somewhat "asset-sensitive" with regard to interest rate risk. The current period of historically low interest rates has lasted for several years. During this time, the Company has maintained an interest rate risk position that is more asset sensitive than it was prior to the economic crisis, and it expects to maintain this more asset sensitive position for a prolonged period. With interest rates at historically low levels, there is a reduced need to protect against falling interest rates. Our estimates of the Company's actual rate risk position 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. Further detail on interest rate risk is discussed in "Interest Rate Risk" on page 80 of the Company's 2011 Annual Report on Form 10-K, and in this filing in "Interest Rate Risk."

ZIONS BANCORPORATION AND SUBSIDIARIES



CONSOLIDATED AVERAGE BALANCE SHEETS, YIELDS AND RATES
(Unaudited)
                                             Three Months Ended                            Three Months Ended
                                               June 30, 2012                                 June 30, 2011
(In thousands)                      Average         Amount of      Average       Average           Amount of      Average
                                    balance         interest 1       rate        balance           interest 1       rate
ASSETS
Money market investments         $  7,786,191     $      5,099       0.26 %   $  4,792,704       $      3,199       0.27 %
Securities:
Held-to-maturity                      797,843           11,339       5.72 %        821,768             11,289       5.51 %
Available-for-sale                  3,084,771           25,603       3.34 %      4,031,836             22,788       2.27 %
Trading account                        18,877              148       3.15 %         60,894                538       3.54 %
Total securities                    3,901,491           37,090       3.82 %      4,914,498             34,615       2.83 %
Loans held for sale                   157,308            1,561       3.99 %        144,048              1,525       4.25 %
Loans 2:
Loans and leases                   36,067,463          454,688       5.07 %     35,960,395            490,083       5.47 %
FDIC-supported loans                  661,597           24,416      14.84 %        879,290             34,298      15.65 %
Total loans                        36,729,060          479,104       5.25 %     36,839,685            524,381       5.71 %
Total interest-earning assets      48,574,050          522,854       4.33 %     46,690,935            563,720       4.84 %
Cash and due from banks             1,025,681                                    1,036,501
Allowance for loan losses          (1,004,879 )                                 (1,321,098 )
Goodwill                            1,015,129                                    1,015,161
Core deposit and other
intangibles                            61,511                                       79,950
Other assets                        3,218,519                                    3,490,867
Total assets                     $ 52,890,011                                 $ 50,992,316
LIABILITIES
Interest-bearing deposits:
Savings and NOW                  $  7,435,000            3,207       0.17 %   $  6,548,676              4,776       0.29 %
Money market                       14,522,941           10,259       0.28 %     14,827,231             17,904       0.48 %
Time                                3,264,853            6,053       0.75 %      3,854,641              9,411       0.98 %
Foreign                             1,490,695            1,304       0.35 %      1,490,636              2,166       0.58 %
Total interest-bearing deposits    26,713,489           20,823       0.31 %     26,721,184   -         34,257       0.51 %
Borrowed funds:
Securities sold, not yet
purchased                               6,128               29       1.90 %         37,989                394       4.16 %
Federal funds purchased and
security repurchase agreements        474,026              161       0.14 %        660,017                200       0.12 %
Other short-term borrowings            13,290               66       2.00 %        169,574              1,189       2.81 %
Long-term debt                      2,329,608           65,165      11.25 %      1,897,887            106,454      22.50 %
Total borrowed funds                2,823,052           65,421       9.32 %      2,765,467            108,237      15.70 %
Total interest-bearing
liabilities                        29,536,541           86,244       1.17 %     29,486,651            142,494       1.94 %
Noninterest-bearing deposits       16,228,973                                   14,163,514
Other liabilities                     582,743                                      499,072
Total liabilities                  46,348,257                                   44,149,237
Shareholders' equity:
Preferred equity                    1,830,845                                    2,246,088
Common equity                       4,713,318                                    4,598,336
Controlling interest
shareholders' equity                6,544,163                                    6,844,424
Noncontrolling interests               (2,409 )                                     (1,345 )
Total shareholders' equity          6,541,754                                    6,843,079
Total liabilities and
shareholders' equity             $ 52,890,011                                 $ 50,992,316
Spread on average
interest-bearing funds                                               3.16 %                                         2.90 %
Taxable-equivalent net interest
income and net yield on
interest-earning assets                           $    436,610       3.62 %                      $    421,226       3.62 %

1 Taxable-equivalent rates used where applicable.
2 Net of unearned income and fees, net of related costs. Loans include nonaccrual and restructured loans.

ZIONS BANCORPORATION AND SUBSIDIARIES



 CONSOLIDATED AVERAGE BALANCE SHEETS, YIELDS AND RATES
(Unaudited)
. . .