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UNITED STATES SECURITIES AND EXCHANGE COMMISSION
WASHINGTON, D.C. 20549
FORM 10-Q
(Mark One)
þ   Quarterly Report Under Section 13 or 15(d) of the Securities Exchange Act of 1934
For the Quarterly Period Ended June 30, 2006
or
     
o   Transition Report Pursuant to Section 13 or 15(d) of the Securities Exchange Act of 1934
For the Transition period from                      to                    
Commission File Number: 001-32550
WESTERN ALLIANCE BANCORPORATION
(Exact Name of Registrant as Specified in Its Charter)
     
Nevada   88-0365922
     
(State or Other Jurisdiction of Incorporation or   (I.R.S. Employer I.D. Number)
Organization)    
     
2700 W. Sahara Avenue, Las Vegas, NV   89102
     
(Address of Principal Executive Offices)   (Zip Code)
(702) 248-4200
(Registrant’s telephone number, including area code)
Indicate by check mark whether the registrant (1) has filed all reports required to be filed by Section 13 or 15(d) of the Securities Exchange Act of 1934 during the preceding 12 months (or for such shorter period that the registrant was required to file such reports), and (2) has been subject to such filing requirements for the past 90 days.
Yes þ      No o
Indicate by check mark whether the registrant is a large accelerated filer, an accelerated filer or a non-accelerated filer. See definition of “accelerated filer” and “large accelerated filer” in Rule 12b-2 of the Exchange Act.
Large accelerated filer o      Accelerated filer o      Non-accelerated filer þ
Indicate by check mark whether the registrant is a shell company (as defined in Rule 12b-2 of the Exchange Act).
Yes o      No þ
Indicate the number of shares outstanding of each of the issuer’s classes of common stock, as of the latest practicable date.
Common Stock Issued and Outstanding: 26,634,944 shares as of July 31, 2006.
 
 

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Signatures
  53
  54
 Exhibit 31.1
 Exhibit 31.2
 Exhibit 32

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Part I. Financial Information
ITEM I. FINANCIAL STATEMENTS
Western Alliance Bancorporation and Subsidiaries
Consolidated Balance Sheets
June 30, 2006 and December 31, 2005
                 
    June 30,   December 31,
($ in thousands, except per share amounts)   2006   2005
    (Unaudited)        
Assets
               
Cash and due from banks
  $ 137,495     $ 111,150  
Federal funds sold
    86,843       63,186  
     
Cash and cash equivalents
    224,338       174,336  
     
Securities held to maturity (approximate fair value $112,159 and $112,601, respectively)
    116,299       115,171  
Securities available for sale
    470,636       633,362  
Loans, net of allowance for loan losses of $32,158 and $21,192, respectively
    2,740,503       1,772,145  
Premises and equipment, net
    82,718       58,430  
Bank owned life insurance
    55,616       51,834  
Investment in Federal Home Loan Bank stock, at cost
    18,765       14,456  
Accrued interest receivable
    14,773       10,545  
Deferred tax assets, net
    7,644       10,807  
Goodwill
    130,633       3,946  
Other intangible assets, net of accumulated amortization of $662 and $405, respectively
    14,685       1,218  
Other assets
    13,011       11,021  
     
Total assets
  $ 3,889,621     $ 2,857,271  
     
 
               
Liabilities and Stockholders’ Equity
               
Liabilities
               
Non-interest bearing demand deposits
  $ 1,188,757     $ 980,009  
Interest bearing deposits:
               
Demand
    261,403       122,262  
Savings and money market
    1,231,232       949,582  
Time, $100 and over
    429,167       316,205  
Other time
    87,800       25,754  
     
 
    3,198,359       2,393,812  
Customer repurchase agreements
    138,547       78,170  
Federal Home Loan Bank advances and other borrowings
               
One year or less
          7,000  
Over one year
    88,073       73,512  
Junior subordinated debt
    61,857       30,928  
Subordinated debt
    20,000        
Accrued interest payable and other liabilities
    15,675       29,626  
     
Total liabilities
    3,522,511       2,613,048  
     
Commitments and Contingencies (Notes 6 and 9)
               
Stockholders’ Equity
               
Preferred stock, par value $.0001; shares authorized 20,000,000; no shares issued and outstanding 2006 and 2005
           
Common stock, par value $.0001; shares authorized 100,000,000; shares issued and outstanding 2006: 26,585,778; 2005: 22,810,491
    3       2  
Additional paid-in capital
    274,574       167,632  
Retained earnings
    105,596       86,281  
Accumulated other comprehensive loss — net unrealized loss on available for sale securities
    (13,063 )     (9,692 )
     
Total stockholders’ equity
    367,110       244,223  
     
Total liabilities and stockholders’ equity
  $ 3,889,621     $ 2,857,271  
     
See Notes to Unaudited Consolidated Financial Statements.

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Western Alliance Bancorporation and Subsidiaries
Consolidated Statements of Income
Three and Six Months Ended June 30, 2006 and 2005
(Unaudited)
                                 
    Three Months Ended   Six Months Ended
    June 30,   June 30,
($ in thousands, except per share amounts)   2006   2005   2006   2005
 
Interest income on:
                               
Loans, including fees
  $ 52,004     $ 23,589     $ 86,758     $ 43,923  
Securities — taxable
    6,429       7,115       12,956       14,784  
Securities — nontaxable
    116       86       579       171  
Dividends — taxable
    214       184       383       306  
Federal funds sold and other
    619       838       902       1,051  
     
Total interest income
    59,382       31,812       101,578       60,235  
     
Interest expense on:
                               
Deposits
    15,417       5,838       25,341       10,357  
Short-term borrowings
    2,476       682       4,174       1,708  
Long-term borrowings
    808       402       1,421       800  
Junior subordinated debt
    1,120       508       1,687       974  
Subordinated debt
    18             18        
     
Total interest expense
    19,839       7,430       32,641       13,839  
     
Net interest income
    39,543       24,382       68,937       46,396  
Provision for loan losses
    2,456       1,187       2,998       2,934  
     
Net interest income after provision for loan losses
    37,087       23,195       65,939       43,462  
     
Other income:
                               
Trust and investment advisory services
    1,862       1,347       3,438       2,660  
Service charges
    867       641       1,536       1,196  
Income from bank owned life insurance
    609       293       1,221       582  
Investment securities gains (losses), net
                      69  
Other
    1,144       637       1,784       995  
     
 
    4,482       2,918       7,979       5,502  
     
Other expense:
                               
Salaries and employee benefits
    13,532       9,015       25,109       17,508  
Occupancy
    3,140       2,450       5,590       4,695  
Customer service
    1,963       965       3,212       1,673  
Advertising and other business development
    921       772       1,960       1,321  
Legal, professional and director fees
    777       512       1,422       996  
Data processing
    521       184       867       365  
Audits and exams
    520       361       926       761  
Correspondent and wire transfer costs
    438       407       839       803  
Organizational costs
    428             428        
Supplies
    372       239       657       500  
Insurance
    278       169       504       317  
Telephone
    251       196       457       363  
Travel and automobile
    196       130       339       255  
Other
    1,233       567       1,780       983  
     
 
    24,570       15,967       44,090       30,540  
     
 
                               
Income before income taxes
    16,999       10,146       29,828       18,424  
 
                               
Income tax expense
    6,122       3,593       10,513       6,550  
     
 
                               
Net income
  $ 10,877     $ 6,553     $ 19,315     $ 11,874  
     
Comprehensive income
  $ 8,065     $ 8,629     $ 15,944     $ 11,573  
     
Earnings per share:
                               
Basic
  $ 0.41     $ 0.35     $ 0.79     $ 0.65  
     
Diluted
  $ 0.38     $ 0.32     $ 0.71     $ 0.59  
     
See Notes to Unaudited Consolidated Financial Statements.

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Western Alliance Bancorporation and Subsidiaries
Consolidated Statement of Stockholders’ Equity
Six Months Ended June 30, 2006 (Unaudited)
($ in thousands, except per share amounts)
                                                                         
                                                            Accumulated        
                                            Additional             Other        
    Comprehensive     Preferred Stock     Common Stock     Paid-in     Retained     Comprehensive        
Description   Income     Shares Issued     Amount     Shares Issued     Amount     Capital     Earnings     (Loss)     Total  
 
Balance, December 31, 2005
                $       22,810,491     $ 2     $ 167,632     $ 86,281     $ (9,692 )   $ 244,223  
 
                                                                       
Issuance of common stock in connection with acquisition, net of offering costs of $263
                            3,390,306       1       101,004                   101,005  
Stock options converted at acquisition
                                        3,406                   3,406  
Stock options exercised
                            131,550             1,078                   1,078  
Stock warrants exercised
                            47,793             364                   364  
Restricted stock granted, net of forfeitures
                            201,443                                
Stock based compensation expense
                            4,195             1,090                   1,090  
Comprehensive income:
                                                                       
Net income
  $ 19,315                                         19,315             19,315  
Other comprehensive income
                                                                       
Unrealized holding losses on securities available for sale arising during the period, net of taxes of $1,896
    (3,371 )                                             (3,371 )     (3,371 )
 
                                                                     
 
  $ 15,944                                                                  
 
                                                                     
 
                                                                       
             
 
                                                                       
Balance, June 30, 2006
                $       26,585,778     $ 3     $ 274,574     $ 105,596     $ (13,063 )   $ 367,110  
             
See Notes to Unaudited Consolidated Financial Statements.

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Western Alliance Bancorporation and Subsidiaries
Consolidated Statements of Cash Flows
Six Months Ended June 30, 2006 and 2005 (Unaudited)
($ in thousands)
                 
    2006   2005
 
Cash Flows from Operating Activities:
               
Net income
  $ 19,315     $ 11,874  
Adjustments to reconcile net income to net cash provided by operating activities:
               
Depreciation and amortization
    2,525       1,826  
Net amortization of securities premiums
    591       1,259  
Stock dividends received, FHLB stock
    (383 )     (305 )
Provision for loan losses
    2,998       2,934  
(Gain) loss on sales of securities available for sale
          (69 )
Deferred taxes
    573       (292 )
Stock based compensation expense
    1,090       38  
Excess tax benefits from share-based payment arrangements
    (80 )      
Increase in accrued interest receivable
    (1,120 )     (12 )
(Increase) in bank-owned life insurance
    (1,221 )     (582 )
(Increase) decrease in other assets
    1,193       (1,935 )
(Decrease) in accrued interest payable and other liabilities
    (11,418 )     (20 )
Other, net
    17       (90 )
     
Net cash provided by operating activities
    14,080       14,626  
     
Cash Flows from Investing Activities:
               
Purchases of securities held to maturity
    (976 )     (8,233 )
Proceeds from maturities of securities held to maturity
    14,804       12,970  
Purchases of securities available for sale
    (20,258 )     (16,445 )
Proceeds from maturities of securities available for sale
    93,117       84,274  
Proceeds from the sale of securities available for sale
    102,641       18,728  
Net cash received in settlement of acquisitions
    3,347        
Proceeds from sale (purchase) of Federal Home Loan Bank stock
    (316 )     2,348  
Net increase in loans made to customers
    (368,984 )     (264,760 )
Purchase of premises and equipment
    (14,881 )     (8,284 )
Proceeds from sale of premises and equipment
          3  
     
Net cash used in investing activities
    (191,506 )     (179,399 )
     
Cash Flows from Financing Activities:
               
Net increase in deposits
    137,060       433,518  
Net proceeds from (repayments on) borrowings
    48,926       (80,170 )
Proceeds from issuance of junior subordinated and subordinated debt
    40,000        
Proceeds from exercise of stock options and stock warrants
    1,362       1,409  
Excess tax benefits from share-based payment arrangements
    80        
     
Net cash provided by financing activities
    227,428       354,757  
     
Increase in cash and cash equivalents
    50,002       189,984  
Cash and Cash Equivalents, beginning of period
    174,336       115,397  
     
Cash and Cash Equivalents, end of period
  $ 224,338     $ 305,381  
     
 
               
Supplemental Disclosure of Cash Flow Information
               
Cash payments for interest
  $ 30,963     $ 13,946  
Cash payments for income taxes
  $ 5,235     $ 8,390  
Supplemental Disclosure of Noncash Investing and Financing Activities
               
Stock and stock options issued in connection with acquisition
  $ 104,411     $  
Receivable from initial public offering, net of offering cost and commissions
  $     $ 75,898  
See Notes to Unaudited Consolidated Financial Statements.

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 1. Nature of Business and Summary of Significant Accounting Policies
Nature of business
     Western Alliance Bancorporation is a bank holding company providing a full range of banking services to commercial and consumer customers through its wholly owned subsidiaries Bank of Nevada (formerly BankWest of Nevada), operating in Nevada, Alliance Bank of Arizona, operating in Arizona, Torrey Pines Bank, operating in Southern California, Miller/Russell & Associates, Inc., operating in Nevada, Arizona and Southern California, and Premier Trust, Inc., operating in Nevada and Arizona. These entities are collectively referred to herein as the Company. The accounting and reporting policies of the Company conform to accounting principles generally accepted in the United States of America and general industry practices.
     A summary of the significant accounting policies of the Company follows:
Use of estimates in the preparation of financial statements
     The preparation of financial statements requires management to make estimates and assumptions that affect the reported amounts of assets and liabilities and disclosures of contingent assets and liabilities at the date of the financial statements and the reported amounts of revenues and expenses during the reporting period. Actual results could differ from those estimates. A material estimate that is particularly susceptible to significant change in the near term relates to the determination of the allowance for loan losses. Additionally, the defalcation discussed in Note 9 required management to estimate a loss before a full investigation had been completed.
Principles of consolidation
     The consolidated financial statements include the accounts of Western Alliance Bancorporation and its wholly owned subsidiaries, Bank of Nevada, Alliance Bank of Arizona, Torrey Pines Bank (collectively referred to herein as the Banks), Miller/Russell & Associates, Inc., and Premier Trust, Inc. Nevada First Bank was acquired on March 31, 2006, and as a result was included in the consolidated balance sheet as of that date. During the quarter ended June 30, 2006, Nevada First Bank was merged into Bank of Nevada, the surviving entity. All significant intercompany balances and transactions have been eliminated in consolidation.
Interim financial information
     The accompanying unaudited consolidated financial statements as of June 30, 2006 and 2005 have been prepared in condensed format, and therefore do not include all of the information and footnotes required by generally accepted accounting principles for complete financial statements.
     The information furnished in these interim statements reflects all adjustments which are, in the opinion of management, necessary for a fair statement of the results for each respective period presented. Such adjustments are of a normal recurring nature. The results of operations in the interim statements are not necessarily indicative of the results that may be expected for any other quarter or for the full year. The interim financial information should be read in conjunction with the Company’s audited financial statements.
     Condensed financial information as of December 31, 2005 has been presented next to the interim consolidated balance sheet for informational purposes.

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 1. Nature of Business and Summary of Significant Accounting Policies (continued)
Stock compensation plans
     The Company has the 2005 Stock Incentive Plan (the Plan) which is described more fully in Note 7. Effective January 1, 2006 (the adoption date), the Company adopted Statement of Financial Accounting Standards (SFAS) No. 123 (revised 2005), Share Based Payment (SFAS 123R). Prior to adoption of SFAS 123R, the Company accounted for stock option grants using the recognition and measurement principles of APB Opinion No. 25, Accounting for Stock Issued to Employees, and related interpretations. No stock option-based compensation was reflected in net income, as all options are required by the Plan to be granted with an exercise price equal to the estimated fair value of the underlying common stock on the date of grant.
     Prior to the adoption of SFAS 123R, the Company applied the disclosure provisions of SFAS 123, Accounting for Stock-Based Compensation. SFAS 123 required the disclosure of the pro forma impact on net income and earnings per share if the value of the options were calculated at fair value. SFAS 123 permitted private companies to calculate the fair value of stock options using the minimum value method while public companies were required to use a fair value model. Prior to the Company’s initial public offering (IPO) the Company used the minimum value method to calculate the fair value of stock options. Subsequent to the Company’s IPO, the Company utilizes the Black-Scholes model to calculate the fair value of stock options.
     The Company has adopted SFAS 123R using the prospective method for options granted prior to the IPO and the modified prospective method for options granted subsequent to the IPO. Under the Company’s transition method, SFAS 123R applies to new awards and to awards that were outstanding on the adoption date that are subsequently modified, repurchased, or cancelled. In addition, the expense recognition provision of SFAS 123R applies to options granted prior to the adoption date but subsequent to the IPO that were unvested at the adoption date.
     The following table illustrates the effect on net income and earnings per share had compensation cost for all of the stock-based compensation plans been determined based on the grant date fair values of awards (the method described in FASB Statement No. 123, Accounting for Stock-Based Compensation):

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 1. Nature of Business and Summary of Significant Accounting Policies (continued)
                                 
    Three Months Ended   Six Months Ended
    June 30,   June 30,
    2006   2005   2006   2005
     
Net income:
                               
As reported
  $ 10,877     $ 6,553     $ 19,315     $ 11,874  
Deduct stock-based employee compensation expense determined under minimum value based method for awards issued prior to the IPO
    (240 )     (218 )     (480 )     (425 )
Related tax benefit for nonqualified stock options
    18       10       36       23  
     
Pro forma
  $ 10,655     $ 6,345     $ 18,871     $ 11,472  
     
 
                               
Earnings per share:
                               
Basic — as reported
  $ 0.41     $ 0.35     $ 0.79     $ 0.65  
Basic — pro forma
    0.40       0.34       0.77       0.63  
Diluted — as reported
    0.38       0.32       0.71       0.59  
Diluted — pro forma
    0.37       0.31       0.69       0.57  
Recent accounting pronouncements
     In July 2006, the FASB issued FASB Interpretation No. 48, Accounting for Uncertainty in Income Taxes, an Interpretation of FASB Statement 109 (FIN 48), which clarifies the accounting for uncertainty in tax positions. This Interpretation provides that the tax effects from an uncertain tax position can be recognized in our financial statements only if the position is more likely than not of being sustained on audit, based on the technical merits of the position. The provisions of FIN 48 are effective for fiscal years beginning after December 15, 2006, with the cumulative effect of the change in accounting principle recorded as an adjustment to opening retained earnings. We do not expect FIN 48 to have a material impact on our financial statements.
Note 2. Merger and Acquisition Activity
     Effective March 31, 2006, the Company acquired 100% of the outstanding common stock of Intermountain First Bancorporation (Intermountain), headquartered in Las Vegas, Nevada. Intermountain was the parent company of Nevada First Bank. The tax-free merger was accomplished according to the Agreement and Plan of Merger (the Merger Agreement), dated December 30, 2005. At the date of acquisition, Nevada First Bank became a wholly-owned subsidiary of the Company, and on April 29, 2006, Nevada First Bank was merged into BankWest of Nevada. As the merger closed on March 31, 2006, Intermountain’s results for the three months ended March 31, 2006 were not included with the Company’s results of operations. The merger increases the Company’s presence in Las Vegas, Nevada and expands the Company’s market into Northern Nevada.
     As provided by the Merger Agreement and based on valuation amounts determined as of the merger date, approximately 1.486 million shares of Intermountain common stock were exchanged for $6.85 million in cash and 3.39 million shares of the Company’s common stock at a calculated exchange ratio of 2.44. The exchange of shares represented approximately 13% of the Company’s outstanding common stock as of the merger date.
     Intermountain had 57,150 employee stock options outstanding at the acquisition date (March 31, 2006). All of the Intermountain stock options vested upon change in control. On the acquisition date, the

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 2. Merger and Acquisitions Activity (continued)
Company replaced the Intermountain stock options with options to purchase shares of the Company’s stock. In order to determine the number of options to be granted, the number of Intermountain options was multiplied by the exchange ratio of 2.44 and the exercise price was divided by the exchange ratio. All other terms (vesting, contractual life, etc.) were carried forward from the Intermountain options. As a result, the Company granted a total of 139,446 stock options with a weighted average exercise price of $7.70 to former Intermountain employees on the acquisition date. The fair value of the stock options of $3.4 million is included in the purchase price.
     The merger was accounted for under the purchase method of accounting in accordance with Statement of Financial Accounting Standard No. 141, Business Combinations. Accordingly, the purchase price was allocated to the assets acquired and the liabilities assumed based on their estimated fair values at the merger date (March 31, 2006) as summarized below (in thousands, except share and per share amounts):

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 2. Merger and Acquisitions Activity (continued)
                 
Purchase Price
               
Number of shares of Company stock issued for Intermountain stock
    3,390,306          
Price of the Company’s stock on the date of Merger Agreement
  $ 29.87          
Total stock consideration
          $ 101,268  
Fair value of Intermountain’s stock options converted to Company stock options at merger date
            3,406  
 
             
Total common stock issued and stock options assumed
            104,674  
Cash consideration
            6,847  
 
             
Total stock and cash consideration
            111,521  
Acquisition costs:
               
Direct costs of acquisition
            1,095  
 
             
Total purchase price and acquisition costs
            112,616  
 
               
Allocation of Purchase Price
               
Intermountain’s equity
  $ 32,015          
Adjustments to reflect assets acquired and liabilities assumed at fair value, net of deferred taxes:
               
Loans
    (751 )        
Identified intangibles
    5,959          
Deposits
    (67 )        
Fair value of net assets acquired
            37,156  
 
             
Estimated goodwill arising from transaction
          $ 75,460  
 
             
     Effective April 29, 2006, the Company acquired 100% of the outstanding common stock of Bank of Nevada, headquartered in Las Vegas, Nevada. The tax-free merger was accomplished according to the Agreement and Plan of Merger (the Bank of Nevada Merger Agreement), dated January 16, 2006. At the date of acquisition, Bank of Nevada was merged into BankWest of Nevada (whose name was subsequently changed to Bank of Nevada). As the merger closed on April 29, 2006, Bank of Nevada’s results for the one month ended April 30, 2006 were not included with the Company’s results of operations. The merger increases the Company’s presence in Las Vegas, Nevada.
     As provided by the Bank of Nevada Merger Agreement, approximately 844,000 shares of Bank of Nevada common stock and 119,000 stock options were exchanged for $74.0 million in cash.
     The merger was accounted for under the purchase method of accounting in accordance with Statement of Financial Accounting Standard No. 141, Business Combinations. Accordingly, the purchase price was allocated to the assets acquired and the liabilities assumed based on their estimated fair values at the merger date (April 29, 2006) as summarized below (in thousands, except share and per share amounts):

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 2. Merger and Acquisitions Activity (continued)
                 
Purchase Price
               
Cash consideration
          $ 73,997  
Acquisition costs:
               
Direct costs of acquisition
            787  
 
             
Total purchase price and acquisition costs
            74,784  
 
               
Allocation of Purchase Price
               
Bank of Nevada’s equity
  $ 21,109          
Adjustments to reflect assets acquired and liabilities assumed at fair value, net of deferred taxes:
               
Loans
    (854 )        
Identified intangibles
    3,012          
Other assets
    423          
Deposits
    (133 )        
Fair value of net assets acquired
            23,557  
 
             
Estimated goodwill arising from transaction
          $ 51,227  
 
             
     Appropriate amounts and adjustments shown previously were recorded by Intermountain and included in the Bank of Nevada reporting segment. Certain amounts, including goodwill, are subject to change when the determination of the asset and liability values is finalized within one year from the merger date. Valuations of certain assets and liabilities of Intermountain will be performed with the assistance of independent valuation consultants. None of the resulting goodwill is expected to be deductible for tax purposes.
     The following unaudited pro forma condensed combined financial information presents the Company’s results of operations for the years indicated had the merger taken place as of January 1, 2005 (in thousands, except per share amounts):

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 2. Merger and Acquisitions Activity (continued)
                                 
    Three months ended   Six months ended
    June 30,   June 30,
    2006   2005   2006   2005
     
Net interest income
  $ 40,695     $ 32,316     $ 79,643     $ 61,479  
Provision for loan losses
    2,456       1,436       4,126       3,566  
Non-interest income
    4,515       3,320       8,235       6,508  
Merger-related expense
    2,995             4,960        
Other non-interest expense
    25,089       20,253       49,785       39,151  
     
Income before income taxes
    14,670       13,947       29,007       25,270  
Income taxes
    5,307       4,919       10,205       8,988  
     
Net income
  $ 9,363     $ 9,028     $ 18,802     $ 16,282  
     
 
                               
Earnings per share
                               
Basic
  $ 0.36     $ 0.41     $ 0.72     $ 0.75  
Diluted
  $ 0.32     $ 0.38     $ 0.65     $ 0.69  
 
                               
Weighted average shares outstanding during the period
                               
Basic
    26,325       21,888       26,280       21,786  
Diluted
    29,013       23,857       28,860       23,633  
     Merger related expense in the three and six months ended June 30, 2006 of $3.0 million and $5.0 million, respectively, relate to costs associated with these mergers and consist of employee-related costs of $2.0 million and $3.6 million, respectively, and other costs of $1.0 million and $1.4 million, respectively. Employee-related costs generally consist of various one time payments and accruals related to employment agreement change-in-control provisions.

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 3. Earnings Per Share
     Diluted earnings per share is based on the weighted average outstanding common shares during each period, including common stock equivalents. Basic earnings per share is based on the weighted average outstanding common shares during the period.
     Basic and diluted earnings per share, based on the weighted average outstanding shares, are summarized as follows:
                                 
    Three Months Ended   Six Months Ended
    June 30,   June 30,
    2006   2005   2006   2005
     
    (in thousands, except per share amounts)
Basic:
                               
Net income applicable to common stock
  $ 10,877     $ 6,553     $ 19,315     $ 11,874  
Average common shares outstanding
    26,295       18,471       24,589       18,369  
     
Earnings per share
  $ 0.41     $ 0.35     $ 0.79     $ 0.65  
     
 
                               
Diluted:
                               
Net income applicable to common stock
  $ 10,877     $ 6,553     $ 19,315     $ 11,874  
     
 
                               
Average common shares outstanding
    26,295       18,471       24,589       18,369  
Stock option adjustment
    1,439       1,096       1,375       1,021  
Stock warrant adjustment
    1,053       873       1,049       826  
Restricted stock adjustment
    196       27       156       27  
     
Average common equivalent shares outstanding
    28,983       20,467       27,169       20,243  
     
Earnings per share
  $ 0.38     $ 0.32     $ 0.71     $ 0.59  
     
Note 4. Loans
     The components of the Company’s loan portfolio as of June 30, 2006 and December 31, 2005 are as follows (in thousands):
                 
    June 30,     December 31,  
    2006     2005  
Construction and land development
  $ 769,231     $ 432,668  
Commercial real estate
    1,061,040       727,210  
Residential real estate
    350,686       272,861  
Commercial and industrial
    568,777       342,452  
Consumer
    26,665       20,434  
Less: net deferred loan fees
    (3,738 )     (2,288 )
     
 
    2,772,661       1,793,337  
 
               
Less:
               
Allowance for loan losses
    (32,158 )     (21,192 )
     
 
  $ 2,740,503     $ 1,772,145  
     

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 4. Loans (continued)
     Changes in the allowance for loan losses for the three and six months ended June 30, 2006 and 2005 are as follows (in thousands):
                                 
    Three Months Ended   Six Months Ended
    June 30,   June 30,
    2006   2005   2006   2005
     
Balance, beginning
  $ 27,689     $ 17,114     $ 21,192     $ 15,271  
Acquisitions
    2,488             8,365        
Provision charged to operating expense
    2,456       1,187       2,998       2,934  
Recoveries of amounts charged off
    120       20       283       158  
Less amounts charged off
    (595 )     (203 )     (680 )     (245 )
     
Balance, ending
  $ 32,158     $ 18,118     $ 32,158     $ 18,118  
     
     At June 30, 2006, total impaired and non-accrual loans were (in thousands) $20, and loans past due 90 days or more and still accruing were (in thousands) $213.
Note 5. Junior Subordinated and Subordinated Debt
     In July 2001, BankWest Nevada Capital Trust I was formed and issued floating rate Cumulative Trust Preferred Securities, which are classified as junior subordinated debt in the accompanying balance sheet in the amount of $15,464,000. The rate is based on the six month LIBOR plus 3.75%. Six month LIBOR was 5.59% at June 30, 2006. The funds raised from the capital trust’s issuance of these securities were all passed to the Company. The sole asset of the BankWest Nevada Capital Trust I is a note receivable from the Company. These securities require semiannual interest payments and mature in 2031. These securities may be redeemed in years 2006 through 2011 at a premium as outlined in the Indenture Agreement.
     In December 2002, BankWest Nevada Capital Trust II was formed and issued floating rate Cumulative Trust Preferred Securities, which are classified as junior subordinated debt in the accompanying balance sheet in the amount of $15,464,000. The rate is based on the three month London Interbank Offered Rate (LIBOR) plus 3.35%. Three month LIBOR was 5.48% at June 30, 2006. The funds raised from the capital trust’s issuance of these securities were all passed to the Company. The sole asset of the BankWest Nevada Capital Trust II is a note receivable from the Company. These securities require quarterly interest payments and mature in 2033. These securities may be redeemable at par beginning in 2008.
     In January 2004, Intermountain First Statutory Trust I was formed to issue floating rate Cumulative Trust Preferred Securities, which are classified as junior subordinated debt in the accompanying balance sheet in the amount of $10,310,000. The rate is based on three month LIBOR plus 2.80%. This debt was acquired by the Company as a result of the merger with Intermountain on March 31, 2006. The securities require quarterly interest payments and mature in 2034. These securities are redeemable at par beginning in March 2009.

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
     In April 2006, WAL Trust No. 1 was formed to issue Cumulative Trust Preferred Securities, which are classified as junior subordinated debt in the accompanying balance sheet in the amount of $20,619,000. The interest rate is fixed through June 2011 at 6.78%. Thereafter, the rate will be equal to

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 5. Junior Subordinated and Subordinated Debt (continued)
the three month LIBOR plus 1.45%. The sole asset of WAL Trust No. 1 is a note receivable from the Company. The funds raised from the capital trust’s issuance of these securities were all passed to the Company. These securities require quarterly interest payments and mature in 2036. These securities may be redeemable at par beginning in June 2011.
     BankWest Nevada Capital Trust I, BankWest Nevada Capital Trust II, Intermountain First Statutory Trust I and WAL Trust No. 1 are collectively referred to herein as the Trusts.
     In the event of certain changes or amendments to regulatory requirements or federal tax rules, the preferred securities are redeemable. The Trusts are 100% owned finance subsidiaries of the Company and the Trusts’ obligations under the preferred securities are fully and unconditionally guaranteed by the Company.
     In June 2006, Bank of Nevada issued $20,000,000 in floating rate unsecured subordinated debt. The rate is based on three month LIBOR plus 1.20%. The debt requires quarterly interest payments and matures in September 2016. The entire $20,000,000 was distributed to the Western Alliance Bancorporation to fund general corporate purposes. A second $20,000,000 is expected to be drawn by Bank of Nevada under this agreement in the third quarter of 2006.
Note 6. Commitments and Contingencies
Contingencies
     In the normal course of business, the Company is involved in various legal proceedings. In the opinion of management, any liability resulting from such proceedings would not have a material adverse effect on the consolidated financial statements.
Financial instruments with off-balance sheet risk
     The Company is party to financial instruments with off-balance sheet risk in the normal course of business to meet the financing needs of its customers. These financial instruments include commitments to extend credit and standby letters of credit. They involve, to varying degrees, elements of credit risk in excess of amounts recognized on the consolidated balance sheets.

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Table of Contents

Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 6. Commitments and Contingencies (continued)
Financial instruments with off-balance sheet risk (continued)
     The Company’s exposure to credit loss in the event of nonperformance by the other parties to the financial instrument for these commitments is represented by the contractual amounts of those instruments. The Company uses the same credit policies in making commitments and conditional obligations as it does for on-balance sheet instruments. A summary of the contract amount of the Company’s exposure to off-balance sheet risk is as follows:
                 
    June 30,   December 31,
    2006   2005
    (in thousands)
Commitments to extend credit, including unsecured loan commitments of $239,218 in 2006 and $111,522 in 2005
  $ 1,133,067     $ 750,349  
Credit card guarantees
    7,008       7,616  
Standby letters of credit, including unsecured letters of credit of $15,288 in 2006 and $4,550 in 2005
    45,028       28,720  
     
 
  $ 1,185,103     $ 786,685  
     
     Commitments to extend credit are agreements to lend to a customer as long as there is no violation of any condition established in the contract. Commitments generally have fixed expiration dates or other termination clauses and may require payment of a fee. Since many of the commitments are expected to expire without being drawn upon, the total commitment amounts do not necessarily represent future cash requirements. The Company evaluates each customer’s creditworthiness on a case-by-case basis. The amount of collateral obtained, if deemed necessary by the Company upon extension of credit, is based on management’s credit evaluation of the party. Collateral held varies, but may include accounts receivable, inventory, property and equipment, residential real estate and income-producing commercial properties.
     The Company guarantees certain customer credit card balances held by an unrelated third party. These unsecured guarantees act to streamline the credit underwriting process and are issued as a service to certain customers who wish to obtain a credit card from the third party vendor. The Company recognizes nominal fees from these arrangements and views them strictly as a means of maintaining good customer relationships. The guarantee is offered to those customers who, based solely upon management’s evaluation, maintain a relationship with the Company that justifies the inherent risk. Essentially all such guarantees exist for the life of each respective credit card relationship. The Company would be required to perform under the guarantee upon a customer’s default on the credit card relationship with the third party. Historical losses under the program have been nominal. Upon entering into a credit card guarantee, the Company records the related liability at fair value pursuant to FASB Interpretation No. 45 (FIN 45), Guarantor’s Accounting and Disclosure Requirements for Guarantees, Including Indirect Guarantees of Indebtedness of Others. Thereafter, the related liability is evaluated pursuant to FASB 5. The total of such credit card balances outstanding at June 30, 2006 and December 31, 2005 (in thousands) are $1,203 and $1,566, respectively. During the second quarter of 2006, the Company began offering its own credit card product and will no longer guarantee new credit cards under the arrangement as described above.

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 6. Commitments and Contingencies (continued)
Financial instruments with off-balance sheet risk (continued)
     Standby letters of credit are conditional commitments issued by the Company to guarantee the performance of a customer to a third party. Those guarantees are primarily issued to support public and private borrowing arrangements. The credit risk involved in issuing letters of credit is essentially the same as that involved in extending loan facilities to customers. Collateral held varies as specified above and is required as the Company deems necessary. Essentially all letters of credit issued have expiration dates within one year. Upon entering into a letter of credit, the Company records the related liability at fair value pursuant to FIN 45. Thereafter, the related liability is evaluated pursuant to FASB 5.
     The total liability for financial instruments with off-balance sheet risk as of June 30, 2006 and December 31, 2005 was (in thousands) $826 and $455, respectively.
Concentrations
     The Company grants commercial, construction, real estate and consumer loans to customers through offices located in the Company’s primary markets. The Company’s business is concentrated in these areas and the loan portfolio includes significant credit exposure to the commercial real estate industry of these areas. At June 30, 2006, commercial real estate related loans accounted for approximately 66% of total loans, and approximately 8% of real estate loans are secured by undeveloped land. Substantially all of these loans are secured by first liens with an initial loan to value ratio of generally not more than 80%. Approximately one-half of real estate loans are owner occupied. In addition, approximately 6% and 5% of total loans are unsecured as of June 30, 2006 and December 31, 2005, respectively. Approximately 30% of our residential real estate loan portfolio is comprised of five and ten year interest only loans. The loans have an average loan-to-value of less than 60% and convert to fully-amortizing adjustable rate mortgages at the end of the interest-only period.
     The commercial and commercial real estate loans are expected to be repaid from business cash flows or proceeds from the sale of selected assets of the borrowers. The Company’s policy for requiring collateral is to obtain collateral whenever it is available or desirable, depending upon the degree of risk the Company is willing to take.
     At June 30, 2006, approximately $366.5 million of the Company’s non-interest bearing demand deposits consisted of demand accounts maintained by title insurance companies.

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 6. Commitments and Contingencies (continued)
Lease Commitments
     The Company leases certain premises and equipment under noncancelable operating leases. The following is schedule of future minimum rental payments under these leases at December 31, 2005, including the lease commitments of the two banks acquired in the six months ending June 30, 2006:
         
Year ending December 31:   (in thousands)  
2006
  $ 3,386  
2007
    3,240  
2008
    2,889  
2009
    2,741  
2010
    2,680  
Thereafter
    10,178  
 
     
 
  $ 25,114  
 
     
Note 7. Stock Options and Restricted Stock
     During 2005, the stockholders approved the 2005 Stock Incentive Plan (the Plan). The Plan is an amendment and restatement of our prior stock compensation plans, and therefore supersedes the prior plans while preserving the material terms of the prior plan awards. The Plan gives the Board of Directors the authority to grant up to 3,253,844 stock awards consisting of unrestricted stock, stock units, dividend equivalent rights, stock options (incentive and non-qualified), stock appreciation rights, restricted stock, and performance and annual incentive awards. Stock awards available to grant at June 30, 2006 are 373,211.
     The Plan contains certain individual limits on the maximum amount that can be paid in cash under the Plan and on the maximum number of shares of common stock that may be issued pursuant to the Plan in a calendar year. The maximum number of shares subject to options or stock appreciation rights that can be issued under the Plan to any person is 150,000 shares in any calendar year. The maximum number of shares that can be issued under the Plan to any person, other than pursuant to an option or stock appreciation right, is 150,000 in any calendar year. The maximum amount that may be earned as an annual incentive award or other cash award in any fiscal year by any one person is $5.0 million and the maximum amount that may be earned as a performance award or other cash award in respect of a performance period by any one person is $15.0 million.
     The fair value of each option award is estimated on the date of grant using the Black-Scholes option valuation model that uses the assumptions noted in the following table. The expected volatility is based on the historical volatility of the stock of similar companies that have traded at least as long as the expected life of the Company’s options. The Company estimates the life of the options by calculating the average of the vesting period and the contractual life. The risk-free rate for periods within the contractual life of the option is based on the U.S. Treasury yield curve in effect at the time of the grant. The dividends rate assumption of zero is based on management’s intention not to pay dividends for the foreseeable future. A summary of the assumptions used in calculating the fair value of option awards during the three and six months ended June 30, 2006 and 2005 is as follows:

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 7. Stock Options and Restricted Stock (continued)
                                 
    Three months ended   Six months ended
    June 30,   June 30,   June 30,   June 30,
    2006   2005   2006   2005
     
Expected life in years
    5       7       5       7  
Risk-free interest rate
    4.9 %     4.1 %     4.6 %     4.1 %
Dividends rate
  None   None   None   None
Fair value per optional share
  $ 12.39     $ 4.04     $ 10.82     $ 4.04  
Volatility
    27 %     N/A       28 %     N/A  
     Stock options granted in 2005 generally have a vesting period of 4 years and a life of 7 years. Restricted stock granted in 2005 generally has a vesting period of 3 years. The Company recognizes compensation cost for options with a graded vesting on a straight-line basis over the requisite service period for the entire award.
     A summary of option activity under the Plan as of June 30, 2006 and 2005, and changes during the three and six months then ended is presented below:
                                 
    Three months ended June 30,
    2006   2005
            Weighted           Weighted
            Average           Average
    Shares   Exercise   Shares   Exercise
    (in thousands)   Price   (in thousands)   Price
     
Outstanding options, beginning of period
    2,310     $ 10.98       2,249     $ 9.32  
Granted
    108       38.28       38       22.00  
Exercised
    (66 )     7.75       (83 )     4.02  
Forfeited or expired
                (17 )     9.73  
         
Outstanding options, end of period
    2,352     $ 12.32       2,187     $ 9.74  
         
Options exercisable, end of period
    969     $ 8.16       624     $ 7.05  
         
                                 
    Six months ended June 30,
    2006   2005
            Weighted           Weighted
            Average           Average
    Shares   Exercise   Shares   Exercise
    (in thousands)   Price   (in thousands)   Price
     
Outstanding options, beginning of period
    2,125     $ 10.10       1,986     $ 7.97  
Granted
    381       23.17       377       17.08  
Exercised
    (132 )     7.63       (141 )     4.22  
Forfeited or expired
    (22 )     13.86       (35 )     10.85  
         
Outstanding options, end of period
    2,352     $ 12.32       2,187     $ 9.74  
         
Options exercisable, end of period
    969     $ 8.16       624     $ 7.05  
         

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 7. Stock Options and Restricted Stock (continued)
     At June 30, 2006 and 2005, the weighted average remaining contractual terms of outstanding stock options were 7.0 years and 8.1 years, respectively. The weighted average contractual terms of vested stock options for the same dates were 6.4 years and 7.1 years, respectively. At June 30, 2006 and 2005, the aggregate intrinsic values (in thousands) of outstanding stock options were $52,821 and $34,269, respectively. At the same dates, the aggregate intrinsic values (in thousands) of vested stock options were $25,800 and $11,445, respectively.
     The total intrinsic values of options exercised during the three months ended June 30, 2006 and 2005 were (in thousands) $1,855 and $1,328, respectively. The total intrinsic values of options exercised during the six months ended June 30, 2006 and 2005 were (in thousands) $3,509 and $2,007, respectively.
     A summary of restricted stock award (RSA) activity under the Plan as of June 30, 2006 and 2005, and changes during the three and six months then ended is presented below:
                                 
    Three months ended June 30,
    2006   2005
            Weighted           Weighted
            Average           Average
    Shares   Exercise   Shares   Exercise
    (in thousands)   Price   (in thousands)   Price
     
Outstanding RSAs, beginning of period
    140     $ 26.61       27     $ 16.50  
Granted
    98       36.01              
Forfeited or expired
    (9 )     36.09              
         
Outstanding RSAs, end of period
    229     $ 30.26       27     $ 16.50  
         
Vested RSAs, end of period
    5     $ 16.50           $  
         
                                 
    Six months ended June 30,
    2006   2005
            Weighted           Weighted
            Average           Average
    Shares   Grant-date   Shares   Exercise
    (in thousands)   Fair Value   (in thousands)   Price
Outstanding RSAs, beginning of period
    27     $ 16.50           $  
Granted
    214       32.20       27       16.50  
Forfeited or expired
    (12 )     33.90              
         
Outstanding RSAs, end of period
    229     $ 30.26       27     $ 16.50  
         
Vested RSAs, end of period
    5     $ 16.50           $  
         
     At June 30, 2006 and 2005, the aggregate intrinsic values of restricted stock awards outstanding (in thousands) are $1,035 and $240, respectively.

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 7. Stock Options and Restricted Stock (continued)
     A summary of the status of the Company’s nonvested shares (stock options and restricted stock) as of June 30, 2006 and changes during the three and six months then ended is presented below:
                                 
    Three months ended June 30,   Six months ended June 30,
    2006   2006
            Weighted-           Weighted-
            Average           Average
    Shares   Grant-Date   Shares   Grant-Date
Nonvested Stock Options   (in thousands)   Fair Value   (in thousands)   Fair Value
     
Nonvested at beginning of period
    1,387     $ 3.54       1,341     $ 2.95  
Granted
    108       12.39       381       15.80  
Vested
    (104 )     2.41       (309 )     12.63  
Forfeited
                (22 )     3.75  
Nonvested at end of period
    1,391       4.31       1,391       4.31  
         
 
                               
Nonvested Restricted Stock
                               
     
Nonvested at beginning of period
    140     $ 26.61       27     $ 16.50  
Granted
    98       36.01       214       32.20  
Vested
    (5 )     16.50       (5 )     16.50  
Forfeited
    (9 )     36.09       (12 )     33.90  
Nonvested at end of period
    224       30.57       224       30.57  
         
     As of June 30, 2006, there was (in thousands) $8,484 of total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under the Plan. That cost is expected to be recognized over a weighted average period of 3.3 years. The total fair value of shares and options vested during the three months ended June 30, 2006 and 2005 was (in thousands) $249 and $249, respectively. The total fair value of shares and options vested during the six months ended June 30, 2006 and 2005 was (in thousands) $4,011 and $249, respectively.

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 8. Segment Information
     The following is a summary of selected operating segment information as of and for the periods ended June 30, 2006 and 2005:
                                                 
    Bank   Alliance Bank   Torrey Pines           Intersegment   Consolidated
    of Nevada*   of Arizona   Bank   Other   Eliminations   Company
 
At June 30, 2006:
                                               
Assets
  $ 2,841,599     $ 605,334     $ 478,081     $ 438,853     $ (474,246 )   $ 3,889,621  
Gross loans and deferred fees
    1,907,239       494,367       381,055             (10,000 )     2,772,661  
Less: Allowance for loan losses
    (21,972 )     (6,138 )     (4,048 )                 (32,158 )
     
Net loans
    1,885,267       488,229       377,007             (10,000 )     2,740,503  
     
Deposits
    2,320,807       493,972       397,668             (14,088 )     3,198,359  
Stockholders’ equity
    318,921       47,882       36,464       374,860       (411,017 )     367,110  
Three Months Ended June 30, 2006:
                                               
Net interest income
  $ 28,663     $ 6,382     $ 5,551     $ (1,053 )   $     $ 39,543  
Provision for loan losses
    1,927       148       381                   2,456  
     
Net interest income after provision for loan losses
    26,736       6,234       5,170       (1,053 )           37,087  
Noninterest income
    1,873       665       408       15,033       (13,497 )     4,482  
Noninterest expense
    (13,133 )     (4,849 )     (3,598 )     (3,320 )     330       (24,570 )
     
Income before income taxes
    15,476       2,050       1,980       10,660       (13,167 )     16,999  
Income tax expense
    5,314       807       816       (815 )           6,122  
     
Net income
  $ 10,162     $ 1,243     $ 1,164     $ 11,475     $ (13,167 )   $ 10,877  
     
Six Months Ended June 30, 2006:
                                               
Net interest income
  $ 47,357     $ 12,177     $ 10,528     $ (1,125 )   $     $ 68,937  
Provision for loan losses
    1,714       682       602                   2,998  
     
Net interest income after provision for loan losses
    45,643       11,495       9,926       (1,125 )           65,939  
Noninterest income
    3,490       1,031       675       25,533       (22,750 )     7,979  
Noninterest expense
    (23,158 )     (9,235 )     (6,785 )     (5,574 )     662       (44,090 )
     
Income before income taxes
    25,975       3,291       3,816       18,834       (22,088 )     29,828  
Income tax expense
    8,774       1,284       1,562       (1,107 )           10,513  
     
Net income
  $ 17,201     $ 2,007     $ 2,254     $ 19,941     $ (22,088 )   $ 19,315  
     

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 8. Segment Information (continued)
                                                 
    Bank   Alliance Bank   Torrey Pines           Intersegment   Consolidated
    of Nevada*   of Arizona   Bank   Other   Eliminations   Company
 
At June 30, 2005:
                                               
Assets
  $ 1,727,081     $ 474,712     $ 334,024     $ 262,150     $ (176,623 )   $ 2,621,344  
Gross loans and deferred fees
    930,543       307,419       215,333                   1,453,295  
Less: Allowance for loan losses
    (11,211 )     (4,318 )     (2,589 )                 (18,118 )
     
Net loans
    919,332       303,101       212,744                   1,435,177  
     
Deposits
    1,469,651       426,576       295,043             (1,716 )     2,189,554  
Stockholders’ equity
    103,858       37,420       27,036       229,404       (175,229 )     222,489  
Three Months Ended June 30, 2005:
                                               
Net interest income
  $ 16,961     $ 4,523     $ 3,376     $ (478 )   $     $ 24,382  
Provision for loan losses
    482       424       281                   1,187  
     
Net interest income after provision for loan losses
    16,479       4,099       3,095       (478 )           23,195  
Noninterest income
    1,232       403       152       8,381       (7,250 )     2,918  
Noninterest expense
    (8,644 )     (3,209 )     (2,548 )     (1,819 )     253       (15,967 )
     
Income before income taxes
    9,067       1,293       699       6,084       (6,997 )     10,146  
Income tax expense
    3,099       520       294       (320 )           3,593  
     
Net income
  $ 5,968     $ 773     $ 405     $ 6,404     $ (6,997 )   $ 6,553  
     
Six Months Ended June 30, 2005:
                                               
Net interest income
  $ 32,793     $ 8,341     $ 6,185     $ (923 )   $     $ 46,396  
Provision for loan losses
    1,441       902       591                   2,934  
     
Net interest income after provision for loan losses
    31,352       7,439       5,594       (923 )           43,462  
Noninterest income
    2,455       529       276       15,766       (13,524 )     5,502  
Noninterest expense
    (16,752 )     (5,896 )     (4,817 )     (3,528 )     453       (30,540 )
     
Income before income taxes
    17,055       2,072       1,053       11,315       (13,071 )     18,424  
Income tax expense
    5,770       828       424       (472 )           6,550  
     
Net income
  $ 11,285     $ 1,244     $ 629     $ 11,787     $ (13,071 )   $ 11,874  
     
 
* — Known as BankWest of Nevada until April 29, 2006

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Western Alliance Bancorporation and Subsidiaries
Notes to Unaudited Consolidated Financial Statements
Note 9. Employee Defalcation
     On July 26, 2006, the Company identified evidence of an employee defalcation pertaining to certain accounts at a branch office of its Bank of Nevada (formerly BankWest of Nevada) subsidiary. The alleged defalcation involved improper draws and payments on legitimate notes and the creation of fraudulent loans, resulting in fraudulent balances and the potential for legitimate loans with undetected credit problems. The Company understands the employee made payments on impaired credits to avoid scrutiny of other loans in the affected portfolio. The Company is reflecting an estimate of the loss resulting from this defalcation in its results of operations for the three months ended June 30, 2006, as reported herein.
     Although investigation of the fraud is still underway, the Company has recognized a net pretax loss of $898,000, including loan losses from impaired credits which were being concealed from management of $527,000 as well as other operating losses from fraudulent loans of $371,000. This amount is net of restitution the Company has secured from the former employee, which include cash payments, assignments of proceeds from the liquidation of certain retirement and profit sharing plans, and the former employee’s personal residence. While we do not currently believe our losses will materially exceed the amount accrued in our results of operations for the three months ended June 30, 2006, we will not have a definitive quantification of the loss until we complete an internal investigation by the end of the third quarter of 2006. In addition, the Company maintains an insurance policy which management believes covers the Company’s fraud losses from this incident.
Note 10. Subsequent Events
          In July 2006, the Company issued a Private Placement Offering Memorandum with the intent of issuing $10,000,000 in common stock. The offering has not been completed as of the date of this filing. The proceeds from this offering will be used to capitalize the proposed de novo bank in Oakland, California.

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ITEM 2. MANAGEMENT’S DISCUSSION AND ANALYSIS OF
FINANCIAL CONDITION AND RESULTS OF OPERATIONS
     The following discussion should be read in conjunction with the Company’s Annual Report on Form 10-K for the year ended December 31, 2005 and our unaudited consolidated financial statements and related footnotes in the Quarterly Report on Form 10-Q. Unless the context requires otherwise, the terms “Company”, “us”, “we”, and “our” refer to Western Alliance Bancorporation on a consolidated basis.
Forward-Looking Information
     Certain statements contained in this document, including, without limitation, statements containing the words “believes”, “anticipates”, “intends”, “expects”, “should” and words of similar import, constitute “forward-looking statements” within the meaning of Section 27A of the Securities Act of 1933 and Section 21E of the Securities Act of 1934. Such forward looking statements involve known and unknown risks, uncertainties and other factors that may cause our actual results, performance or achievements to be materially different from any future results, performance or achievements expressed or implied by such forward-looking statements. Such factors include, among others, the following: general economic and business conditions in those areas in which we operate, demographic changes, competition, fluctuations in interest rates, changes in business strategy or development plans, changes in governmental regulation, credit quality, the availability of capital to fund the expansion of our business, and other factors referenced in this Quarterly Report. Except as required by law, we disclaim any obligation to update any such factors or to publicly announce the results of any revisions to any of the forward-looking statements contained herein to reflect future events or developments.
Overview
     During the second quarter of 2006, we remained focused on increasing our earnings through growth of our interest earning assets funded with low-cost deposits. Organic loan growth for the quarter ended June 30, 2006 was $181.6 million, or 9.3%, as compared to $121.5 million, or 9.1% for the same period in 2005. At June 30, 2006, gross loans acquired in the Intermountain and Bank of Nevada mergers were $642.5 million. Organic deposit growth was $57.5 million, or 2.3%, for the three months ended June 30, 2006, compared to $170.9 million, or 8.5% for the same period in 2005. Total deposits acquired in the Intermountain and Bank of Nevada mergers were $605.6 million. We reported net income of $11.0 million, or $0.38 per diluted share, for the quarter ended June 30, 2006, as compared to $6.6 million, or $0.32 per diluted share, for the same period in 2005. The increase in earnings is primarily due to higher net interest income, due primarily to an increase in loans and the increase in interest rates. The provision for loan losses increased $742,000 from the three months ended June 30, 2005 to the same period in 2006, due to stronger loan growth. Non-interest income for the quarter ended June 30, 2006 increased 53.6% from the same period in the prior year, due to increases in trust and investment advisory fees, service charges and income from bank owned life insurance. Non-interest expense for the quarter ended June 30, 2006 increased 55.1% from the same period in 2005, due primarily to increases in salaries and benefits, occupancy and customer service costs caused by continued branch expansion and the acquisitions of Nevada First Bank and Bank of Nevada.
     Selected financial highlights are presented in the table below.

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Western Alliance Bancorporation and Subsidiaries
Summary Consolidated Financial Data
Unaudited
                                                 
            At or for the three months                     For the six months        
            ended June 30,                     ended June 30,        
    2006     2005     Change %     2006     2005     Change %  
     
Selected Balance Sheet Data:
                                               
($ in millions)
                                               
Total assets
  $ 3,889.6     $ 2,621.3       48.4 %                        
Gross loans, including net deferred fees
    2,772.7       1,453.3       90.8                          
Securities
    586.9       695.4       (15.6 )                        
Federal funds sold
    86.8       212.2       (59.1 )                        
Deposits
    3,198.4       2,189.6       46.1                          
Customer repurchase agreements
    138.5       55.3       150.5                          
Borrowings
    88.1       113.7       (22.5 )                        
Junior subordinated and subordinated debt
    81.9       30.9       165.0                          
Stockholders’ equity
    367.1       222.5       65.0                          
 
                                               
Selected Income Statement Data:
                                               
($ in thousands)
                                               
Interest income
  $ 59,382     $ 31,812       86.7 %   $ 101,578     $ 60,235       68.6 %
Interest expense
    19,839       7,430       167.0       32,641       13,839       135.9  
 
                                       
Net interest income
    39,543       24,382       62.2       68,937       46,396       48.6  
Provision for loan losses
    2,456       1,187       106.9       2,998       2,934       2.2  
 
                                       
Net interest income after provision for loan losses
    37,087       23,195       59.9       65,939       43,462       51.7  
Non-interest income
    4,482       2,918       53.6       7,979       5,502       45.0  
Non-interest expense
    24,570       15,967       53.9       44,090       30,540       44.4  
 
                                       
Income before income taxes
    16,999       10,146       67.5       29,828       18,424       61.9  
Income tax expense
    6,122       3,593       70.4       10,513       6,550       60.5  
 
                                       
Net Income
  $ 10,877     $ 6,553       66.0     $ 19,315     $ 11,874       62.7  
 
                                       
 
                                               
Common Share Data:
                                               
Net income per share:
                                               
Basic
  $ 0.41     $ 0.35       17.1 %   $ 0.79     $ 0.65       21.5 %
Diluted
    0.38       0.32       18.8       0.71       0.59       20.3  
Book value per share
    13.81       9.99       38.2                          
Tangible book value per share
    8.34       9.75       (14.4 )                        
Average shares outstanding (in thousands):
                                               
Basic
    26,295       18,471       42.4       24,589       18,369       33.9  
Diluted
    28,983       20,467       41.6       27,169       20,243       34.2  
Common shares outstanding
    26,586       22,274       19.4                          
 
                                               
Selected Performance Ratios:
                                               
Return on average assets (1)
    1.16 %     1.10 %     5.6 %     1.18 %     1.05 %     12.4 %
Return on average stockholders’ equity (1)
    12.02       17.71       (32.1 )     12.72       16.53       (23.0 )
Return on average tangible stockholders’ equity (1)
    18.63       18.37       1.4       16.30       17.16       (5.0 )
Net interest margin (1)
    4.72       4.39       7.5       4.64       4.38       6.0  
Net interest spread
    3.62       3.59       0.9       3.56       3.62       (1.6 )
Efficiency ratio
    55.81       58.49       (4.6 )     57.32       58.85       (2.6 )
Loan to deposit ratio
    86.69       66.37       30.6                          
 
                                               
Capital Ratios:
                                               
Tangible Common Equity
    5.9 %     8.3 %     (28.9 )%                        
Leverage ratio
    8.3       10.6       (21.7 )                        
Tier 1 Risk Based Capital
    9.3       13.5       (31.1 )                        
Total Risk Based Capital
    10.9       14.5       (24.8 )                        
 
                                               
Asset Quality Ratios:
                                               
Net charge-offs to average loans outstanding (1)
    0.02 %     0.01 %     100.0 %     (0.01 )%     0.01 %   NA %
Non-accrual loans to gross loans
    0.00       0.04       (100.0 )                        
Non-accrual loans to total assets
    0.00       0.03       (100.0 )                        
Loans past due 90 days and still accruing to total loans
    0.01       0.00     NA                          
Allowance for loan losses to gross loans
    1.16       1.25       (7.0 )                        
Allowance for loan losses to non-accrual loans
    160790.00 %     3150.96 %                                
 
(1)   Annualized for the three and six month periods ended June 30, 2006 and 2005.

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Primary Factors in Evaluating Financial Condition and Results of Operations
          As a bank holding company, we focus on several factors in evaluating our financial condition and results of operations, including:
    Return on Average Equity, or ROE;
 
    Return on Average Tangible Equity, or ROTE;
 
    Return on Average Assets, or ROA;
 
    Asset Quality;
 
    Asset and Deposit Growth; and
 
    Operating Efficiency.
          Return on Average Equity. Our net income for the three months ended June 30, 2006 increased 66.0% to $10.9 million compared to $6.6 million for the three months ended June 30, 2005. The increase in net income was due primarily to an increase in net interest income of $15.0 million, an increase in non-interest income of $1.6 million, offset by increases of $1.3 million and $8.6 million to the provision for loan losses and in other expenses, respectively. Basic earnings per share increased to $0.41 per share for the three months ended June 30, 2006 compared to $0.35 per share for the same period in 2005. Diluted earnings per share was $0.38 per share for the three month periods ended June 30, 2006, compared to $0.32 per share for the same period in 2005. The increase in net income offset by the increase in equity resulted in an ROE and ROTE of 12.02% and 18.63%, respectively, for the three months ended June 30, 2006 compared to 17.71% and 18.37%, respectively, for the three months ended June 30, 2005.
          Our net income for the six months ended June 30, 2006 increased 62.7% to $19.3 million compared to $11.9 million for the six months ended June 30, 2005. The increase in net income was due primarily to an increase in net interest income of $22.5 million and an increase in non-interest income of $2.5 million, offset by an increase of $13.6 million in other expenses. Basic earnings per share increased to $0.79 per share for the six months ended June 30, 2006 compared to $0.65 per share for the same period in 2005. Diluted earnings per share was $0.71 per share for the six month periods ended June 30, 2006, compared to $0.59 per share for the same period in 2005. The increase in net income offset by the increase in equity resulted in an ROE and ROTE of 12.72% and 16.30%, respectively, for the six months ended June 30, 2006 compared to 16.53% and 17.16%, respectively, for the six months ended June 30, 2005.
          Return on Average Assets. Our ROA for the three and six months ended June 30, 2006 increased to 1.16% and 1.18%, respectively, compared to 1.10% and 1.05%, respectively, for the same periods in 2005. The increases in ROA are primarily due to the increases in net income as discussed above.
          Asset Quality. For all banks and bank holding companies, asset quality plays a significant role in the overall financial condition of the institution and results of operations. We measure asset quality in terms of non-accrual and restructured loans and assets as a percentage of

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gross loans and assets, and net charge-offs as a percentage of average loans. Net charge-offs are calculated as the difference between charged-off loans and recovery payments received on previously charged-off loans. As of June 30, 2006, non-accrual loans were $20,000 compared to $503,000 at June 30, 2005. Non-accrual loans as a percentage of gross loans were less than 0.01% as of June 30, 2006, compared to 0.03% as of June 30, 2005. For the three and six months ended June 30, 2006, net charge-offs/ (recoveries) as a percentage of average loans were 0.02% and (0.01%), respectively. For the same periods in 2005, net charge-offs as a percentage of average loans were 0.01% for each period.
     Asset Growth. The ability to produce loans and generate deposits is fundamental to our asset growth. Our assets and liabilities are comprised primarily of loans and deposits, respectively. Total assets increased 48.4% to $3.9 billion as of June 30, 2006 from $2.6 billion as of June 30, 2005. Gross loans grew 90.8% (46.6% organically) to $2.8 billion as of June 30, 2006 from $1.5 billion as of June 30, 2005. Total deposits increased 46.1% (18.4% organically) to $3.2 billion as of June 30, 2006 from $2.2 billion as of June 30, 2005.
     Operating Efficiency. Operating efficiency is measured in terms of how efficiently income before income taxes is generated as a percentage of revenue. Our efficiency ratio (non-interest expenses divided by the sum of net interest income and non interest income) was 55.8% for the three months ended June 30, 2006, compared to 58.5% for the same period in 2005. Our efficiency ratios for the six months ended June 30, 2006 and 2005 were 57.3% and 58.9%, respectively.
Critical Accounting Policies
     The Notes to Audited Consolidated Financial Statements for the year ended December 31, 2005 contain a summary of our significant accounting policies, including discussions on recently issued accounting pronouncements, our adoption of them and the related impact of their adoption. We believe that certain of these policies, along with various estimates that we are required to make in recording our financial transactions, are important to have a complete picture of our financial position. In addition, these estimates require us to make complex and subjective judgments, many of which include matters with a high degree of uncertainty. The following is a discussion of these critical accounting policies and significant estimates. Additional information about these policies can be found in Note 1 of the Audited Consolidated Financial Statements filed with the Company’s Annual Report on Form 10-K.
     Allowance for Loan Losses. The allowance for loan losses is a valuation allowance for probable losses incurred in the loan portfolio. Our allowance for loan loss methodology incorporates a variety of risk considerations in establishing an allowance for loan loss that we believe is adequate to absorb losses in the existing portfolio. Such analysis addresses our historical loss experience, delinquency and charge-off trends, collateral values, changes in nonperforming loans, economic conditions, peer group experience and other considerations. This information is then analyzed to determine “estimated loss factors” which, in turn, are assigned to each loan category. These factors also incorporate known information about individual loans, including the borrowers’ sensitivity to interest rate movements. Changes in the factors themselves are driven by perceived risk in pools of homogenous loans classified by collateral type, purpose and term. Management monitors local trends to anticipate future delinquency potential on a quarterly basis. In addition to ongoing internal loan reviews and risk assessment, management utilizes an independent loan review firm to provide advice on the appropriateness of the allowance for loan losses.

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     The allowance for loan losses is increased by the provision for loan losses charged to expense and reduced by loans charged off, net of recoveries. Provisions for loan losses are provided on both a specific and general basis. Specific allowances are provided for classified and impaired credits for which the expected/anticipated loss may be measurable. General valuation allowances are based on a portfolio segmentation based on collateral type, purpose and risk grading, with a further evaluation of various factors noted above.
     We incorporate our internal loss history to establish potential risk based on collateral type securing each loan. As an additional comparison, we examine peer group banks to determine the nature and scope of their losses. Finally, we closely examine each credit graded “Watch List/Special Mention” and below to individually assess the appropriate specific loan loss reserve for such credit.
     At least annually, we review the assumptions and formulae by which additions are made to the specific and general valuation allowances for loan losses in an effort to refine such allowance in light of the current status of the factors described above. The total loan portfolio is thoroughly reviewed at least quarterly for satisfactory levels of general and specific reserves together with impaired loans to determine if write downs are necessary.
     Although we believe the level of the allowance as of June 30, 2006 was adequate to absorb probable losses in the loan portfolio, a decline in local economic or other factors could result in increasing losses that cannot be reasonably estimated at this time. Also, we have not completed our analysis of the loan portfolio affected by the defalcation, as discussed below and as such, additional losses could result.
     Available-for-Sale Securities. Statement of Financial Accounting Standards No. 115, Accounting for Certain Investments in Debt and Equity Securities, requires that available-for-sale securities be carried at fair value. Management utilizes the services of a third party vendor to assist with the determination of estimated fair values. Adjustments to the available-for-sale securities fair value impact the consolidated financial statements by increasing or decreasing assets and stockholders’ equity.
     Stock Based Compensation. Effective January 1, 2006 (the adoption date), the Company adopted Statement of Financial Accounting Standards No. 123 (revised 2004), Share Based Payment (SFAS 123R). Prior to adoption of SFAS 123R, the Company accounted for stock option grants using the recognition and measurement principles of APB Opinion No. 25, Accounting for Stock Issued to Employees, and related interpretations. No stock-based compensation was reflected in net income, as all options are required by the Plan to be granted with an exercise price equal to the estimated fair value of the underlying common stock on the date of grant.
     Prior to the adoption of SFAS 123R, the Company applied the disclosure provisions of SFAS 123, Accounting for Stock-Based Compensation. SFAS 123 required the disclosure of the pro forma impact on net income and earnings per share if the value of the options were calculated at fair value. SFAS 123 permitted private companies to calculate the fair value of stock options using the minimum value method while public companies were required to use a fair value model. Prior to the Company’s initial public offering (IPO) the Company used the minimum value method to calculate the fair value of stock options. Subsequent to the Company’s IPO, the Company utilizes the Black-Scholes model to calculate the fair value of stock options.

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     The Company has adopted SFAS 123R using the prospective method for options granted prior to the IPO and the modified prospective method for options granted subsequent to the IPO. Under the Company’s transition method, SFAS 123R applies to new awards and to awards that were outstanding on the adoption date that are subsequently modified, repurchased, or cancelled. In addition, the expense recognition provision of SFAS 123R applies to options granted prior to the adoption date but subsequent to the IPO that were unvested at the adoption date.
     Beginning in 2006, the Company’s stock-based compensation strategy involves granting restricted stock to key employees and stock options to senior executives. Prior to 2006, key employees were primarily granted stock options.
     As of June 30, 2006, there was (in thousands) $8,484 of total unrecognized compensation cost related to nonvested share-based compensation arrangements granted under the Plan. That cost is expected to be recognized over a weighted average period of 3.3 years.
     Intangible assets. We closed our acquisitions of Intermountain First Bancorp and Bank of Nevada on March 31 and April 29, 2006, respectively. A portion of the purchase prices of Intermountain First Bancorp and Bank of Nevada have been allocated to core deposit intangible. These intangible assets are initially recorded at fair value as determined by a qualified independent valuation specialist engaged by management. We will amortize these intangible assets over their estimated useful lives. In addition, we will reassess the fair value of these assets each reporting period to determine whether any impairment losses should be recognized.
     Defalcation. On July 26, 2006, the Company identified evidence of an employee defalcation pertaining to certain accounts at a branch office of its Bank of Nevada (formerly BankWest of Nevada) subsidiary. The alleged defalcation involved improper draws and payments on legitimate notes and the creation of fraudulent loans, resulting in fraudulent balances and the potential for legitimate loans with undetected credit problems. The Company understands the employee made payments on impaired credits to avoid scrutiny of other loans in the affected portfolio. The Company is reflecting an estimate of the loss resulting from this defalcation in its results of operations for the three months ended June 30, 2006, as reported herein.
     Although investigation of the fraud is still underway, the Company has recognized a net pretax loss of $898,000, including loan losses from impaired credits which were being concealed from management of $527,000 as well as other operating losses from fraudulent loans of $371,000. This amount is net of restitution the Company has secured from the former employee, which include cash payments, assignments of proceeds from the liquidation of certain retirement and profit sharing plans, and the former employee’s personal residence. While we do not currently believe our losses will materially exceed the amount accrued in our results of operations for the three months ended June 30, 2006, we will not have a definitive quantification of the loss until we complete an internal investigation by the end of the third quarter of 2006. In addition, the Company maintains an insurance policy which management believes covers the Company’s fraud losses from this incident.
Results of Operations
     Our results of operations depend substantially on net interest income, which is the difference between interest income on interest-earning assets, consisting primarily of loans receivable, securities and other short-term investments, and interest expense on interest-bearing liabilities, consisting primarily of deposits and borrowings. Our results of

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operations are also dependent upon our generation of non-interest income, consisting of income from trust and investment advisory services and banking service fees. Other factors contributing to our results of operations include our provisions for loan losses, gains or losses on sales of securities and income taxes, as well as the level of our non-interest expenses, such as compensation and benefits, occupancy and equipment and other miscellaneous operating expenses.
     The following table sets forth a summary financial overview for the three and six months ended June 30, 2006 and 2005:
                                                 
    Three Months Ended           Six Months Ended    
    June 30,           June 30,    
    2006   2005   Increase   2006   2005   Increase
    (in thousands, except per share amounts)
Consolidated Statement of Earnings Data:
                                               
Interest income
  $ 59,382     $ 31,812     $ 27,570     $ 101,578     $ 60,235     $ 41,343  
Interest expense
    19,839       7,430       12,409       32,641       13,839       18,802  
     
Net interest income
    39,543       24,382       15,161       68,937       46,396       22,541  
Provision for loan losses
    2,456       1,187       1,269       2,998       2,934       64  
     
Net interest income after provision for loan losses
    37,087       23,195       13,892       65,939       43,462       22,477  
Other income
    4,482       2,918       1,564       7,979       5,502       2,477  
Other expense
    24,570       15,967       8,603       44,090       30,540       13,550  
     
Net income before income taxes
    16,999       10,146       6,853       29,828       18,424       11,404  
Income tax expense
    6,122       3,593       2,529       10,513       6,550       3,963  
         
Net income
  $ 10,877     $ 6,553     $ 4,324     $ 19,315     $ 11,874     $ 7,441  
         
Earnings per share — basic
  $ 0.41     $ 0.35     $ 0.06     $ 0.79     $ 0.65     $ 0.14  
         
Earnings per share — diluted
  $ 0.38     $ 0.32     $ 0.06     $ 0.71     $ 0.59     $ 0.12  
         
     The 66.0% increase in net income in the three months ended June 30, 2006 compared to the same period in 2005 was attributable primarily to an increase in net interest income of $15.2 million and an increase in non-interest income of $1.6 million, offset by an increase of $8.6 million in other expenses and an increase to the provision for loan losses of $1.3 million. Net income for the six months ended June 30, 2006 increased 62.7% over the same period in 2005, which is due to an increase in net interest income of $22.5 million and an increase in non-interest income of $2.5 million, offset by an increase in non-interest expenses of $13.6 million. The increases in net interest income for the three and six months ended June 30, 2006 over the same periods for 2005 were the result of an increase in the volume of and yield earned on interest-earning assets, primarily loans.
     Net Interest Income and Net Interest Margin. The 62.2% increase in net interest income for the three months ended June 30, 2006 compared to the same period in 2005 was due to an increase in interest income of $27.6 million, reflecting the effect of an increase of $1.1 billion in average interest-bearing assets which was primarily funded with an increase of $960.4 million in average deposits, of which $227.0 million were non-interest bearing.
     Net interest income for the six months ended June 30, 2006 increased 48.6% over the same period in 2005. This was due to an increase in interest income of $22.5 million, reflecting the effect of an increase of $866.5 million in average interest-bearing assets which was primarily

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funded with increase of $747.7 million in average deposits, of which $185.8 million were non-interest bearing.
     The average yield on our interest-earning assets was 7.09% and 6.82% for the three and six months ended June 30, 2006, respectively, compared to 5.73% and 5.68% for the same periods in 2005. The increase in the yield on our interest-earning assets is a result of an increase in market rates, repricing on our adjustable rate loans, and new loans originated with higher interest rates due to the higher interest rate environment. Additionally, the loan portfolios of Nevada First Bank and Bank of Nevada, both of which were acquired in the six months ended June 30, 2006, generally yielded more than the loan portfolio held by the former BankWest of Nevada. Loans, which typically yield more than our other interest-bearing assets, increased as a percent of total interest-bearing assets from 62.0% for the three months ended June 30, 2005 to 79.9% for the same period in 2006.
     The cost of our average interest-bearing liabilities increased to 3.47% and 3.26% in the three and six months ended June 30, 2006, respectively, from 2.14% and 2.06% in the three and six months ended June 30, 2005, respectively, which is a result of higher rates paid on deposit accounts, borrowings and junior subordinated debt caused by the steady upward pressure on short-term interest rates driven by the Federal Open Market Committee’s (FOMC) rate increases. Due in part to our acquisitions, we have also seen a shift in our deposit mix whereby non-interest bearing deposits comprise a smaller percentage of our entire deposit portfolio, thus increasing our funding costs. Average non-interest bearing deposits as a percent of deposits declined from 41.2% for the three months ended June 30, 2005 to 35.6% for the same period in 2006.
     Despite the increase in our cost of funding, we have experienced steady margin expansion since the FOMC began raising interest rates. We anticipate that such expansion will become more difficult to achieve as long as the yield curve remains flat and alternate sources of funding such as subordinated debt become a more significant part of our funding mix. Furthermore, we expect modest margin contraction in the third quarter 2006 due to the mid-second quarter close of our acquisition of the former Bank of Nevada for cash, which was not reflected for the entire second quarter.
     Average Balances and Average Interest Rates. The tables below set forth balance sheet items on a daily average basis for the three and six months ended June 30, 2006 and 2005 and present the daily average interest rates earned on assets and the daily average interest rates paid on liabilities for such periods. Non-accrual loans have been included in the average loan balances. Securities include securities available for sale and securities held to maturity. Securities available for sale are carried at amortized cost for purposes of calculating the average rate received on taxable securities above. Yields on tax-exempt securities and loans are computed on a tax equivalent basis.

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    Three Months Ended June 30,  
($ in thousands)   2006     2005  
                    Average                     Average  
    Average             Yield/Cost     Average             Yield/Cost  
    Balance     Interest     (6)     Balance     Interest     (6)  
Earning Assets
                                               
Securities:
                                               
Taxable
  $ 599,310     $ 6,429       4.30 %   $ 717,351     $ 7,115       3.98 %
Tax-exempt (1)
    10,081       116       6.68 %     7,069       86       7.60 %
         
Total securities
    609,391       6,545       4.34 %     724,420       7,201       4.01 %
Federal funds sold and other
    47,823       619       5.19 %     109,571       838       3.07 %
Loans (1) (2) (3)
    2,688,362       52,004       7.76 %     1,382,956       23,589       6.84 %
Federal Home Loan Bank stock
    18,396       214       4.67 %     13,037       184       5.66 %
         
Total earnings assets
    3,363,972       59,382       7.09 %     2,229,984       31,812       5.73 %
Non-earning Assets
                                               
Cash and due from banks
    109,484                       79,587                  
Allowance for loan losses
    (30,048 )                     (17,535 )                
Bank-owned life insurance
    54,376                       26,569                  
Other assets
    249,458                       64,411                  
 
                                           
Total assets
  $ 3,747,242                     $ 2,383,016                  
 
                                           
Interest Bearing Liabilities
                                               
Sources of Funds
                                               
Interest-bearing deposits:
                                               
Interest checking
    265,212       1,703       2.58 %     109,568       162       0.59 %
Savings and money market
    1,176,374       8,818       3.01 %     804,451       3,866       1.93 %
Time deposits
    484,640       4,896       4.05 %     278,856       1,810       2.60 %
         
Total interest-bearing deposits
    1,926,226       15,417       3.21 %     1,192,875       5,838       1.96 %
Short-term borrowings
    220,515       2,476       4.50 %     106,628       682       2.57 %
Long-term debt
    88,090       808       3.68 %     59,300       402       2.72 %
Junior and subordinated debt
    56,818       1,138       8.03 %     30,928       508       6.59 %
         
Total interest-bearing liabilities
    2,291,649       19,839       3.47 %     1,389,731       7,430       2.14 %
Non-interest Bearing Liabilities
                                               
Noninterest-bearing demand deposits
    1,063,756                       836,737                  
Other liabilities
    28,919                       8,152                  
Stockholders’ equity
    362,918                       148,396                  
 
                                           
Total liabilities and stockholders’ equity
  $ 3,747,242                     $ 2,383,016                  
 
                                           
Net interest income and margin (4)
          $ 39,543       4.72 %           $ 24,382       4.39 %
 
                                           
Net interest spread (5)
                    3.62 %                     3.59 %
 
(1)   Yields on loans and securities have been adjusted to a tax equivalent basis.
 
(2)   Net loan fees of $492,000 and $318,000 are included in the yield computation for June 30, 2006 and 2005, respectively.
 
(3)   Includes average non-accrual loans of $20,000 in 2006 and $551,000 in 2005.
 
(4)   Net interest margin is computed by dividing net interest income by total average earning assets.
 
(5)   Net interest spread represents average yield earned on interest-earning assets less the average rate paid on interest-bearing liabilities.
 
(6)   Annualized.

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    Six Months Ended June 30,  
($ in thousands)   2006     2005  
                    Average                     Average  
    Average             Yield/Cost     Average             Yield/Cost  
    Balance     Interest     (6)     Balance     Interest     (6)  
Earning Assets
                                               
Securities:
                                               
Taxable
  $ 608,200     $ 12,956       4.30 %   $ 740,325     $ 14,784       4.03 %
Tax-exempt (1)
    32,248       579       5.18 %     7,069       171       7.62 %
         
Total securities
    640,448       13,535       4.34 %     747,394       14,955       4.06 %
Federal funds sold and other
    37,917       902       4.80 %     72,739       1,051       2.91 %
Loans (1) (2) (3)
    2,313,970       86,758       7.56 %     1,308,841       43,923       6.77 %
Federal Home Loan Bank stock
    16,434       383       4.70 %     13,298       306       4.64 %
         
Total earnings assets
    3,008,769       101,578       6.82 %     2,142,272       60,235       5.68 %
Non-earning Assets
                                               
Cash and due from banks
    96,335                       75,476                  
Allowance for loan losses
    (25,936 )                     (16,570 )                
Bank-owned life insurance
    53,219                       26,424                  
Other assets
    176,774                       61,639                  
 
                                           
Total assets
  $ 3,309,161                     $ 2,289,241                  
 
                                           
Interest Bearing Liabilities
                                               
Sources of Funds
                                               
Interest-bearing deposits:
                                               
Interest checking
    193,466       1,920       2.00 %     104,503       259       0.50 %
Savings and money market
    1,077,155       15,329       2.87 %     759,571       6,881       1.83 %
Time deposits
    419,856       8,092       3.89 %     264,423       3,217       2.45 %
         
Total interest-bearing deposits
    1,690,477       25,341       3.02 %     1,128,497       10,357       1.85 %
Short-term borrowings
    201,122       4,174       4.19 %     135,735       1,708       2.54 %
Long-term debt
    80,841       1,421       3.54 %     59,300       800       2.72 %
Junior subordinated debt
    43,944       1,705       7.82 %     30,928       974       6.35 %
         
Total interest-bearing liabilities
    2,016,384       32,641       3.26 %     1,354,460       13,839       2.06 %
Non-interest Bearing Liabilities
                                               
Noninterest-bearing demand deposits
    965,715                       779,965                  
Other liabilities
    20,826                       9,972                  
Stockholders’ equity
    306,236                       144,844                  
 
                                           
Total liabilities and stockholders’ equity
  $ 3,309,161                     $ 2,289,241                  
 
                                           
Net interest income and margin (4)
          $ 68,937       4.64 %           $ 46,396       4.38 %
 
                                           
Net interest spread (5)
                    3.56 %                     3.62 %
 
(1)   Yields on loans and securities have been adjusted to a tax equivalent basis.
 
(2)   Net loan fees of $700,000 and $615,000 are included in the yield computation for June 30, 2006 and 2005, respectively.
 
(3)   Includes average non-accrual loans of $71,000 in 2006 and $728,000 in 2005.
 
(4)   Net interest margin is computed by dividing net interest income by total average earning assets.
 
(5)   Net interest spread represents average yield earned on interest-earning assets less the average rate paid on interest-bearing liabilities.
 
(6)   Annualized.

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          Net Interest Income. The table below demonstrates the relative impact on net interest income of changes in the volume of earning assets and interest-bearing liabilities and changes in rates earned and paid by us on such assets and liabilities. For purposes of this table, non-accrual loans have been included in the average loan balances.
                                                 
    Three Months Ended June 30,   Six Months Ended June 30,
    2006 v. 2005   2006 v. 2005
    Increase (Decrease)   Increase (Decrease)
    Due to Changes in (1)   Due to Changes in (1)
    Volume   Rate   Total   Volume   Rate   Total
    (in thousands)
Interest on securities:
                                               
Taxable
  $ (1,266 )   $ 580     $ (686 )   $ (2,815 )   $ 987     $ (1,828 )
Tax-exempt
    35       (5 )     30       452       (44 )     408  
Federal funds sold
    (799 )     580       (219 )     (828 )     679       (149 )
Loans
    25,252       3,163       28,415       37,685       5,150       42,835  
Other investment
    62       (32 )     30       73       4       77  
         
 
                                               
Total interest income
    23,284       4,286       27,570       34,567       6,776       41,343  
 
                                               
Interest expense:
                                               
Interest checking
    999       542       1,541       883       778       1,661  
Savings and Money market
    2,788       2,164       4,952       4,520       3,928       8,448  
Time deposits
    2,079       1,007       3,086       2,996       1,879       4,875  
Short-term borrowings
    1,279       515       1,794       1,357       1,109       2,466  
Long-term debt
    264       142       406       379       242       621  
Junior subordinated debt
    519       111       630       505       226       731  
         
 
                                               
Total interest expense
    7,928       4,481       12,409       10,640       8,162       18,802  
         
 
                                               
Net increase
  $ 15,356     $ (195 )   $ 15,161     $ 23,927     $ (1,386 )   $ 22,541  
         
 
(1)   Changes due to both volume and rate have been allocated to volume changes.
          Provision for Loan Losses. The provision for loan losses in each period is reflected as a charge against earnings in that period. The provision is equal to the amount required to maintain the allowance for loan losses at a level that, in our judgment, is adequate to absorb probable loan losses inherent in the loan portfolio.
          Our provision for loan losses was $2.5 million and $3.0 million for the three and six months ended June 30, 2006, respectively, compared to $1.2 million and $2.9 million the same periods in 2005. Factors that impact the provision for loan losses are net charge-offs or

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recoveries, changes in the size of the loan portfolio, and the recognition of changes in current risk factors. For the three and six months ended June 30, 2006, the provision includes the impact of $542,000 in charged-off credits associated with the employee defalcation.
          Non-Interest Income. We earn non-interest income primarily through fees related to:
    Trust and investment advisory services,
 
    Services provided to deposit customers, and
 
    Services provided to current and potential loan customers.
          The following tables present, for the periods indicated, the major categories of non-interest income:
                                                 
    Three Months Ended           Six Months Ended    
    June 30,   Increase   June 30,   Increase
    2006   2005   (Decrease)   2006   2005   (Decrease)
    (in thousands)
Trust and investment advisory services
  $ 1,862     $ 1,347     $ 515     $ 3,438     $ 2,660     $ 778  
Service charges
    867       641       226       1,536       1,196       340  
Income from bank owned life insurance
    609       293       316       1,221       582       639  
Investment securities losses, net
                            69       (69 )
Other
    1,144       637       507       1,784       995       789  
         
Total non-interest income
  $ 4,482     $ 2,918     $ 1,564     $ 7,979     $ 5,502     $ 2,477  
         
          The $1.6 million and $2.5 million, or 53.6% and 45.0%, respectively, increases in non-interest income from the three and six months ended June 30, 2005 to the same periods in 2006 were due primarily to increases in Miller/Russell investment advisory revenues and income from bank owned life insurance. Assets under management at Miller/Russell were up 41.4% from June 30, 2005 to June 30, 2006, causing the increase in revenues. During the third quarter of 2005, we purchased $24.0 million in bank owned life insurance.
          Non-Interest Expense. The following table presents, for the periods indicated, the major categories of non-interest expense:

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    Three Months Ended           Six Months Ended    
    June 30,   Increase   June 30,   Increase
    2006   2005   (Decrease)   2006   2005   (Decrease)
    (in thousands)
Salaries and employee benefits
  $ 13,532     $ 9,015     $ 4,517     $ 25,109     $ 17,508     $ 7,601  
Occupancy
    3,140       2,450       690       5,590       4,695       895  
Customer service
    1,963       965       998       3,212       1,673       1,539  
Advertising and other business development
    921       772       149       1,960       1,321       639  
Legal, professional and director fees
    777       512       265       1,422       996       426  
Data processing
    521       184       337       867       365       502  
Audits and exams
    520       361       159       926       761       165  
Correspondent and wire transfer costs
    438       407       31       839       803       36  
Organizational costs
    428             428       428             428  
Supplies
    372       239       133       657       500       157  
Insurance
    278       169       109       504       317       187  
Telephone
    251       196       55       457       363       94  
Travel and automobile
    196       130       66       339       255       84  
Other
    1,233       567       666       1,780       983       797  
         
 
  $ 24,570     $ 15,967     $ 8,603     $ 44,090     $ 30,540     $ 13,550  
         
          Non-interest expense grew $8.6 million and $13.6 million, respectively, from the three and six months ended June 30, 2005 to the same periods in 2006. These increases are attributable to our overall growth, and specifically to the acquisitions of Nevada First Bank and Bank of Nevada, opening of new branches and hiring of new relationship officers and other employees. At June 30, 2006, we had 717 full-time equivalent employees compared to 497 at June 30, 2005. The increase in salaries expenses related to the above totaled $4.5 million and $7.6 million, respectively, which is 52.5% and 56.1%, respectively, of the total increases in non-interest expenses.
          Occupancy expense increased $690,000 and $895,000, respectively, from the three and six months ended June 30, 2005 to the same periods in 2006 due to increased costs associated with new and acquired branches. At June 30, 2006 we operated 26 branch locations, compared with 13 at June 30, 2005.
          Customer service expense increased $998,000 and $1.5 million from the three and six month periods ended June 30, 2005 to the same periods in 2006 due to an increase in the analysis earnings credit rate used to calculate earnings credits accrued for the benefit of certain title company deposit accounts.
          During the three months ended June 30, 2006, we incurred $428,000 of organizational costs associated with a proposed de novo bank (Alta Alliance Bank [proposed]) in Oakland, California. We anticipate that such costs will continue through the third quarter of 2006, shortly after which we expect Alta Alliance Bank (proposed) to open.
          Other expenses increased $666,000, due to losses related to the defalcation of $371,000 and the overall growth of the Company.

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          Other non-interest expense increased, in general, as a result of the growth in assets and operations for our three banking subsidiaries.
          Provision for Income Taxes. Our effective federal income tax rate was 36.1% and 35.3% for the three and six months ended June 30, 2006, respectively compared to 35.4% and 35.6%, respectively, for the same periods in 2005.
     Defalcation. On July 26, 2006, the Company identified evidence of an employee defalcation pertaining to certain accounts at a branch office of its Bank of Nevada (formerly BankWest of Nevada) subsidiary. The alleged defalcation involved improper draws and payments on legitimate notes and the creation of fraudulent loans, resulting in fraudulent balances and the potential for legitimate loans with undetected credit problems. The Company understands the employee made payments on impaired credits to avoid scrutiny of other loans in the affected portfolio. The Company is reflecting an estimate of the loss resulting from this defalcation in its results of operations for the three months ended June 30, 2006, as reported herein.
     Although investigation of the fraud is still underway, the Company has recognized a net pretax loss of $898,000, including loan losses from impaired credits which were being concealed from management of $527,000 as well as other operating losses from fraudulent loans of $371,000. This amount is net of restitution the Company has secured from the former employee, which include cash payments, assignments of proceeds from the liquidation of certain retirement and profit sharing plans, and the former employee’s personal residence. While we do not currently believe our losses will materially exceed the amount accrued in our results of operations for the three months ended June 30, 2006, we will not have a definitive quantification of the loss until we complete an internal investigation by the end of the third quarter of 2006. In addition, the Company maintains an insurance policy which management believes covers the Company’s fraud losses from this incident.
Financial Condition
Total Assets
          On a consolidated basis, our total assets as of June 30, 2006 and December 31, 2005 were $3.9 billion and $2.9 billion, respectively. The overall increase from December 31, 2005 to June 30, 2006 of $1.0 billion, or 36.1%, was due primarily to the acquisition of Intermountain First Bancorporation and Bank of Nevada on March 31, 2006 and April 29, 2006, respectively. At June 30, 2006, assets acquired through the Intermountain and Bank of Nevada mergers totaled $845.4 million and gross loans acquired totaled $642.5 million. Assets experienced organic growth during the same period of $187.7 million, or 6.6%, including loan growth of $334.8 million, or 18.7%.
Loans
          Our gross loans including deferred loan fees on a consolidated basis as of June 30, 2006 and December 31, 2005 were $2.8 billion and $1.8 billion, respectively. Our overall growth in loans from December 31, 2005 to June 30, 2006 reflects our acquisitions of Intermountain First Bancorporation and Bank of Nevada and is consistent with our focus and strategy to grow our loan portfolio by focusing on markets which we believe have attractive growth prospects.
          The following table shows the amounts of loans outstanding by type of loan at the end of each of the periods indicated.

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    June 30,     December 31,  
    2006     2005  
    (in thousands)  
Construction and land development
  $ 769,231     $ 432,668  
Commercial real estate
    1,061,040       727,210  
Residential real estate
    350,686       272,861  
Commercial and industrial
    568,777       342,452  
Consumer
    26,665       20,434  
Net deferred loan fees
    (3,738 )     (2,288 )
 
           
 
               
Gross loans, net of deferred fees
    2,772,661       1,793,337  
Less: Allowance for loan losses
    (32,158 )     (21,192 )
 
           
 
               
 
  $ 2,740,503     $ 1,772,145  
 
           
          Non-Performing Assets. Non-performing assets include loans past due 90 days or more and still accruing interest, non-accrual loans, restructured loans, and other real estate owned, or OREO. In general, loans are placed on non-accrual status when we determine timely recognition of interest to be in doubt due to the borrower’s financial condition and collection efforts. Restructured loans have modified terms to reduce either principal or interest due to deterioration in the borrower’s financial condition. OREO results from loans where we have received physical possession of the borrower’s assets that collateralized the loan. The following table summarizes the loans for which the accrual of interest has been discontinued, loans past due 90 days or more and still accruing interest, restructured loans, and OREO.
                 
    June 30,   December 31,
    2006   2005
    ($ in thousands)
Total non-accrual loans
  $ 20     $ 107  
Loans past due 90 days or more and still accruing
    213       34  
Restructured loans
           
Other real estate owned (OREO)
           
Non-accrual loans to gross loans
    0.00 %     0.00 %
Loans past due 90 days or more and still accruing to total loans
    0.01       0.00  
Interest income received on nonaccrual loans
  $ 0     $ 1  
Interest income that would have been recorded under the original terms of the loans
    1       10  
          As of June 30, 2006 and December 31, 2005, non-accrual loans totaled $20,000 and $107,000, respectively.

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Allowance for Loan Losses
          Like all financial institutions, we must maintain an adequate allowance for loan losses. The allowance for loan losses is established through a provision for loan losses charged to expense. Loans are charged against the allowance for loan losses when we believe that collectibility of the principal is unlikely. Subsequent recoveries, if any, are credited to the allowance. The allowance is an amount that we believe will be adequate to absorb probable losses on existing loans that may become uncollectible, based on evaluation of the collectibility of loans and prior credit loss experience, together with the other factors noted earlier.
          Our allowance for loan loss methodology incorporates several quantitative and qualitative risk factors used to establish the appropriate allowance for loan loss at each reporting date. Quantitative factors include our historical loss experience, peer group experience, delinquency and charge-off trends, collateral values, changes in non-performing loans, other factors, and information about individual loans including the borrower’s sensitivity to interest rate movements. Qualitative factors include the economic condition of our operating markets and the state of certain industries. Specific changes in the risk factors are based on perceived risk of similar groups of loans classified by collateral type, purpose and terms. Statistics on local trends, peers, and an internal five-year loss history are also incorporated into the allowance. Due to the credit concentration of our loan portfolio in real estate secured loans, the value of collateral is heavily dependent on real estate values in Nevada, Arizona and Southern California. While management uses the best information available to make its evaluation, future adjustments to the allowance may be necessary if there are significant changes in economic or other conditions. In addition, the Federal Deposit Insurance Corporation, or FDIC, and state banking regulatory agencies, as an integral part of their examination processes, periodically review the Banks’ allowance for loan losses, and may require us to make additions to the allowance based on their judgment about information available to them at the time of their examinations. Management periodically reviews the assumptions and formulae used in determining the allowance and makes adjustments if required to reflect the current risk profile of the portfolio.
          The allowance consists of specific and general components. The specific allowance relates to watch credits, criticized loans, and impaired loans. For such loans that are also classified as impaired, an allowance is established when the discounted cash flows (or collateral value or observable market price) of the impaired loan are lower than the carrying value of that loan, pursuant to Financial Accounting Standards Board, or FASB, Statement No. 114, Accounting by Creditors for Impairment of a Loan. The general allowance covers non-classified loans and is based on historical loss experience adjusted for the various qualitative and quantitative factors listed above, pursuant to FASB Statement No. 5, or FASB 5, Accounting for Contingencies. Loans graded “Watch List/Special Mention” and below are individually examined closely to determine the appropriate loan loss reserve.
          The following table summarizes the activity in our allowance for loan losses for the periods indicated:

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    Three months ended   Six months ended
    June 30,   June 30,
    2006   2005   2006   2005
    ($ in thousands)
Allowance for loan losses:
                               
Balance at beginning of period
  $ 27,689     $ 17,114     $ 21,192     $ 15,271  
Acquisitions
    2,488             8,365        
Provisions charged to operating expenses
    2,456       1,187       2,998       2,934  
Recoveries of loans previously charged-off:
                               
Construction and land development
                       
Commercial real estate
                       
Residential real estate
                5       3  
Commercial and industrial
    99       19       227       149  
Consumer
    21       1       51       6  
     
Total recoveries
    120       20       283       158  
Loans charged-off:
                               
Construction and land development
                       
Commercial real estate
                       
Residential real estate
                       
Commercial and industrial
    594       107       677       125  
Consumer
    1       96       3       120  
     
Total charged-off
    595       203       680       245  
Net recoveries
    475       183       397       87  
     
Balance at end of period
  $ 32,158     $ 18,118     $ 32,158     $ 18,118  
     
Net charge-offs to average loans outstanding
    0.02 %     0.01 %                
Allowance for loan losses to gross loans
    1.16       1.25                  
     Net charge-offs totaled $475,000 and $183,000 for the three months ended June 30, 2006 and 2005, respectively. For the six months ended June 30, 2006 and 2005, net charge-offs totaled $397,000 and $87,000, respectively. The provision for loan losses totaled $2.5 million and $3.0 million for the three and six months ended June 30, 2006, respectively, compared to $1.2 million and $2.9 million for the same periods in 2005.
Investments
     Securities are identified as either held-to-maturity or available-for-sale based upon various factors, including asset/liability management strategies, liquidity and profitability objectives, and regulatory requirements. Held-to-maturity securities are carried at cost, adjusted for amortization of premiums or accretion of discounts. Available-for-sale securities may be sold prior to maturity based upon asset/liability management decisions. Securities identified as available-for-sale are carried at fair value. Unrealized gains or losses on available-for-sale securities are recorded as accumulated other comprehensive income in stockholders’ equity. Amortization of premiums or accretion of discounts on mortgage-backed securities is periodically adjusted for estimated prepayments.
     We use our investment securities portfolio to ensure liquidity for cash requirements, manage interest rate risk, provide a source of income and to manage asset quality. The carrying value of our investment securities as of June 30, 2006 totaled $586.9 million, compared to $748.5

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million at December 31, 2005. The decrease experienced from December 31, 2005 to June 30, 2006 was a result of the maturity of our Auction Rate Securities portfolio and called U.S. Government-sponsored agency obligations.
     The carrying value of our portfolio of investment securities at June 30, 2006 and December 31, 2005 was as follows:
                 
    Carrying Value
    At June 30,   At December 31,
    2006   2005
    (in thousands)
U.S. Treasury securities
  $ 3,481     $ 3,498  
U.S. Government-sponsored agencies
    82,327       137,578  
Mortgage-backed obligations
    469,292       519,858  
SBA Loan Pools
    407       426  
State and Municipal obligations
    10,500       7,128  
Auction rate securities
          67,999  
Other
    20,928       12,046  
     
Total investment securities
  $ 586,935     $ 748,533  
     
     We had a concentration of U.S. Government sponsored agencies and mortgage-backed securities during the three and six months ended June 30, 2006 and the year ended December 31, 2005. The aggregate carrying value and aggregate fair value of these securities at June 30, 2006 and December 31, 2005 was as follows:
                 
    June 30,   December 31,
    2006   2005
    (in thousands)
Aggregate carrying value
  $ 551,619     $ 657,436  
     
     
Aggregate fair value
  $ 547,322     $ 654,636  
     
Goodwill and other intangible assets
     Primarily as a result of the acquisitions of Intermountain First Bancorporation and Bank of Nevada in the six months ended June 30, 2006, we recorded goodwill of $126.7 million and core deposit intangible assets of $13.8 million. These amounts are subject to change when the determination of the asset and liability values is finalized within one year from the respective merger dates.
Deposits
     Deposits have historically been the primary source for funding our asset growth. As of June 30, 2006, total deposits were $3.2 billion, compared to $2.4 billion as of December 31, 2005. Deposits acquired as a result of the acquisitions of Intermountain First Bancorporation and Bank of Nevada totaled $605.6 million. The remaining organic increase in total deposits is

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attributable to our ability to attract a stable base of low-cost deposits. As of June 30, 2006, non-interest bearing deposits were $1.2 billion, compared to $980.0 million as of December 31, 2005. Approximately $366.5 million of total deposits, or 11.5%, as of June 30, 2006 consisted of non-interest bearing demand accounts maintained by title insurance companies. Interest-bearing accounts have also experienced growth. As of June 30, 2006, interest-bearing deposits were $2.0 billion, compared to $1.4 billion as of December 31, 2005. Interest-bearing deposits are comprised of NOW accounts, savings and money market accounts, certificates of deposit under $100,000, and certificates of deposit over $100,000.
     The average balances and weighted average rates paid on deposits for the three and six months ended June 30, 2006 and 2005 are presented below:
                                 
    Three months ended     Six months ended  
    June 30, 2006     June 30, 2006  
    Average Balance/Rate     Average Balance/Rate  
    ($ in thousands)  
Interest checking (NOW)
  $ 265,212       2.58 %   $ 193,466       2.00 %
Savings and money market
    1,176,374       3.01       1,077,155       2.87  
Time
    484,640       4.05       419,856       3.89  
 
                           
 
                               
Total interest-bearing deposits
    1,926,226       3.21       1,690,477       3.02  
Non-interest bearing demand deposits
    1,063,756             779,965        
 
                           
 
                               
Total deposits
  $ 2,989,982       2.07 %   $ 2,470,442       1.92 %
 
                           
Contractual Obligations and Off-Balance Sheet Arrangements
     We routinely enter into contracts for services in the conduct of ordinary business operations which may require payment for services to be provided in the future and may contain penalty clauses for early termination of the contracts. To meet the financing needs of our customers, we are also parties to financial instruments with off-balance sheet risk including commitments to extend credit and standby letters of credit. We have also committed to irrevocably and unconditionally guarantee the following payments or distributions with respect to the holders of preferred securities to the extent that BankWest Nevada Trust I, BankWest Nevada Trust II, WAL Trust No. 1 and Intermountain First Statutory Trust I have not made such payments or distributions: (i) accrued and unpaid distributions, (ii) the redemption price, and (iii) upon a dissolution or termination of the trust, the lesser of the liquidation amount and all accrued and unpaid distributions and the amount of assets of the trust remaining available for distribution. We do not believe that these off-balance sheet arrangements have or are reasonably likely to have a material effect on our financial condition, changes in financial condition, revenues or expenses, results of operations, liquidity, capital expenditures, or capital resources. However, there can be no assurance that such arrangements will not have a future effect.
     Long-Term Borrowed Funds. We also have entered into long-term contractual obligations consisting of advances from Federal Home Loan Bank (FHLB). These advances are

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secured with collateral generally consisting of securities or loans. As of June 30, 2006, these long-term FHLB advances totaled $78.3 million and will mature by December 31, 2012.
     We have issued $20.0 million in floating rate unsecured subordinated debt. The debt requires quarterly interest payments and matures in September 2016.
     Our commitments associated with outstanding letters of credit, commitments to extend credit, and credit card guarantees as of June 30, 2006 are summarized below. Since commitments associated with letters of credit and commitments to extend credit may expire unused, the amounts shown do not necessarily reflect the actual future cash funding requirements.
                 
    June 30,   December 31,
    2006   2005
    (in thousands)
Commitments to extend credit, including unsecured loan commitments of $239,218 in 2006 and $111,522 in 2005
  $ 1,133,067     $ 750,349  
Credit card guarantees
    7,008       7,616  
Standby letters of credit, including unsecured letters of credit of $15,288 in 2006 and $4,550 in 2005
    45,028       28,720  
     
 
  $ 1,185,103     $ 786,685  
     
     Short-Term Borrowed Funds. Short-term borrowed funds are used to support liquidity needs created by seasonal deposit flows, to temporarily satisfy funding needs from increased loan demand, and for other short-term purposes. Certain of these short-term borrowed funds consist of advances from FHLB. The borrowing capacity at FHLB is determined based on collateral pledged, generally consisting of securities, at the time of borrowing. We also have borrowings from other sources pledged by securities including securities sold under agreements to repurchase, which are reflected at the amount of cash received in connection with the transaction, and may require additional collateral based on the fair value of the underlying securities. As of June 30, 2006, total short-term borrowed funds were $138.5 million compared to total short-term borrowed funds of $85.2 million as of December 31, 2005.
     Since growth in core deposits may be at intervals different from loan demand, we may follow a pattern of funding irregular growth in assets with short-term borrowings, which are then replaced with core deposits. This temporary funding source is likely to be utilized for generally short-term periods, although no assurance can be given that this will, in fact, occur.
Capital Resources
     Current risk-based regulatory capital standards generally require banks and bank holding companies to maintain three minimum capital ratios. Tier 1 risk-based capital ratio compares “Tier 1” or “core” capital, which consists principally of common equity, and risk-weighted assets for a minimum ratio of at least 4%. Leverage ratio compares Tier 1 capital to adjusted average assets for a minimum ratio of at least 4%. Total risk-based capital ratio compares total capital, which consists of Tier 1 capital, certain forms of subordinated debt, a portion of the allowance for loan losses, and preferred stock, to risk-weighted assets for a minimum ratio of at least 8%. Risk-weighted assets are calculated by multiplying the balance in each category of assets by a risk factor, which ranges from zero for cash assets and certain government obligations to 100% for some types of loans, and adding the products together.

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     The following table provides a comparison of our risk-based capital ratios and leverage ratios to the minimum regulatory requirements as of June 30, 2006.
                                                 
                    Adequately-   Minimum For
                    Capitalized   Well-Capitalized
    Actual   Requirements   Requirements
    ($ in thousands)
    Amount   Ratio   Amount   Ratio   Amount   Ratio
As of June 30, 2006
                                               
Total Capital (to Risk Weighted Assets)
                                               
Bank of Nevada
  $ 238,098       10.6 %   $ 180,005       8.0 %   $ 225,006       10.0 %
Alliance Bank of Arizona
    60,733       10.7       45,396       8.0       56,745       10.0  
Torrey Pines Bank
    46,399       11.1       33,464       8.0       41,831       10.0  
Company
    352,311       10.9       257,897       8.0       322,371       10.0  
 
                                               
Tier I Capital (to Risk Weighted Assets)
                                               
Bank of Nevada
    195,423       8.7       90,002       4.0       135,003       6.0  
Alliance Bank of Arizona
    49,515       8.7       22,698       4.0       34,047       6.0  
Torrey Pines Bank
    37,351       8.9       16,732       4.0       25,098       6.0  
Company
    299,303       9.3       128,948       4.0       193,423       6.0  
 
                                               
Leverage ratio (to Average Assets)
                                               
Bank of Nevada
    195,423       7.5       104,715       4.0       130,893       5.0  
Alliance Bank of Arizona
    49,515       8.4       23,594       4.0       29,492       5.0  
Torrey Pines Bank
    37,351       8.0       18,602       4.0       23,253       5.0  
Company
    299,303       8.3       144,267       4.0       180,334       5.0  
     The holding company and all of the banks were well capitalized as of June 30, 2006 and December 31, 2005.
Liquidity
     The ability to have readily available funds sufficient to repay fully maturing liabilities is of primary importance to depositors, creditors and regulators. Our liquidity, represented by cash and due from banks, federal funds sold and available-for-sale securities, is a result of our operating, investing and financing activities and related cash flows. In order to ensure funds are available at all times, on at least a quarterly basis, we project the amount of funds that will be required and maintain relationships with a diversified customer base so funds are accessible. Liquidity requirements can also be met through short-term borrowings or the disposition of short-term assets. We have borrowing lines at correspondent banks totaling $122.4 million. In addition, securities and loans are pledged to the FHLB totaling $314.9 million on total borrowings from the FHLB of $78.3 million as of June 30, 2006. As of June 30, 2006, we had $21.5 million in securities available to be sold or pledged to the FHLB.
     We have a formal liquidity policy, and in the opinion of management, our liquid assets are considered adequate to meet our cash flow needs for loan funding and deposit cash

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withdrawal for the next 60 to 90 days. At June 30, 2006, we had $691.6 million in liquid assets comprised of $224.3 million in cash and cash equivalents (including federal funds sold of $86.8 million) and $470.6 million in securities available-for-sale.
     The merger with Intermountain First Bancorporation, which closed on March 31, 2006, resulted in a cash outlay of $6.8 million in the second quarter of 2006. The acquisition of Bank of Nevada, which closed on April 29, 2006, resulted in a cash outlay of $74.0 million in the second quarter of 2006. These outlays were funded with cash on hand, the issuance of $20.0 million of trust preferred securities and a drawdown of $10.0 million on an available line of credit. The line of credit was paid off in the second quarter of 2006 and we issued $20 million in subordinated debt at our Bank of Nevada subsidiary.
     On a long-term basis, our liquidity will be met by changing the relative distribution of our asset portfolios, for example, reducing investment or loan volumes, or selling or encumbering assets. Further, we will increase liquidity by soliciting higher levels of deposit accounts through promotional activities and/or borrowing from our correspondent banks as well as the Federal Home Loan Bank of San Francisco. At the current time, our long-term liquidity needs primarily relate to funds required to support loan originations and commitments and deposit withdrawals. All of these needs can currently be met by cash flows from investment payments and maturities, and investment sales if the need arises.
     Our liquidity is comprised of three primary classifications: (i) cash flows from operating activities; (ii) cash flows used in investing activities; and (iii) cash flows provided by financing activities. Net cash provided by operating activities consists primarily of net income adjusted for changes in certain other asset and liability accounts and certain non-cash income and expense items such as the loan loss provision, investment and other amortizations and depreciation. For the six months ended June 30, 2006, net cash provided by operating activities was $14.1 million, compared to $14.6 million for the same period in 2005.
     Our primary investing activities are the origination of real estate, commercial and consumer loans and purchase and sale of securities. Our net cash used in investing activities has been primarily influenced by our loan and securities activities. The increase in loans, net of loans acquired, for the three months ended June 30, 2006 and 2005 was $369.0 million and $264.8 million, respectively. Proceeds from maturities and sales of securities, net of purchases of securities available-for-sale and held-to-maturity for the six months ended June 30, 2006 and 2005 were $191.5 million and $137.1 million, respectively.
     Net cash provided by financing activities has been affected significantly by increases in deposit levels. During the six months ended June 30, 2006 and 2005 deposits increased, net of deposits acquired, by $227.4 million and $433.5 million, respectively.
     Our federal funds sold increased $23.7 million from December 31, 2005 to June 30, 2006. This is due to the growth in our deposits and borrowings, including junior subordinated and subordinated debt, combined with the decrease of our investment portfolio exceeding our loan growth over the same period.
     Federal and state banking regulations place certain restrictions on dividends paid by the Banks to Western Alliance. The total amount of dividends which may be paid at any date is generally limited to the retained earnings of each Bank. Dividends paid by the Banks to the

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Company would be prohibited if the effect thereof would cause the respective Bank’s capital to be reduced below applicable minimum capital requirements.

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ITEM 3. Quantitative and Qualitative Disclosures About Market Risk
     Market risk is the risk of loss in a financial instrument arising from adverse changes in market prices and rates, foreign currency exchange rates, commodity prices and equity prices. Our market risk arises primarily from interest rate risk inherent in our lending, investing and deposit taking activities. To that end, management actively monitors and manages our interest rate risk exposure.
     There have not been any material changes in the market risk disclosure contained in the Company’s Annual Report on Form 10-K for the year ended December 31, 2005.
ITEM 4. Controls and Procedures
Evaluation of Disclosure Controls
     On July 26, 2006, the Company identified evidence of an employee defalcation pertaining to certain accounts at a branch location of its Bank of Nevada subsidiary. The alleged defalcation involved improper draws and payments on legitimate notes and the creation of fraudulent loans, resulting in fraudulent balances and the potential for legitimate loans with undetected credit problems. This defalcation was facilitated by certain deficiencies in our internal control structure, primarily related to insufficient segregation of duties.
     As a result of the foregoing, based on their evaluation as of the end of the period covered by this Quarterly Report on Form 10-Q, the Chief Executive Officer and Chief Financial Officer have concluded that the disclosure controls and procedures (as defined in Rules 13a-15(e) and 15d-15(e) of the Securities Exchange Act of 1934) were not effective to ensure that information required to be disclosed by us in reports that we file or submit under the Securities Exchange Act of 1934 is recorded, processed, summarized and reported in within the time periods specified in Securities and Exchange Commission rules and forms.
Changes in Internal Control over Financial Reporting
     Subsequent to the discovery of the alleged defalcation, management has implemented staffing changes designed to improve the training of the individuals involved in the daily operations of the Banks. Procedural changes were also implemented to enhance the segregation of duties, which strengthen the review, authorization and reconciliation process so that the probability of employee defalcations occurring in the future is reduced.
     Except as discussed above, there have not been any changes in the Company’s internal control over financial reporting which have materially affected, or are reasonably likely to materially affect, the Company’s internal control over financial reporting.

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Part II. Other Information
Item 1. Legal Proceedings
     There are no material pending legal proceedings, other than ordinary routine litigation incidental to its business, to which Western Alliance or any of its subsidiaries is a party or of which any of their property is the subject.
Item 1A. Risk Factors
See the discussion of our risk factors in the Annual Report on Form 10-K for the year ended December 31, 2005, as filed with the SEC.
Item 2. Unregistered Sales of Equity Securities and Use of Proceeds
          (a) There were no unregistered sales of equity securities during the period covered by this report.
          (b) None.
          (c) None.
Item 3. Defaults Upon Senior Securities
     Not applicable.
Item 4. Submission of Matters to a Vote of Security Holders
     None
Item 5. Other Information
     Not applicable.

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Item 6. Exhibits
31.1   CEO Certification Pursuant to Rule 13a-14(a)/15d-a4(a).
 
31.2   CFO Certification Pursuant to Rule 13a-14(a)/15d-14(a).
 
32   CEO and CFO Certification Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes – Oxley Act of 2002, as amended.

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Pursuant to the requirements of Section 13 or 15(d) 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.
         
  WESTERN ALLIANCE BANCORPORATION
 
 
Date: August 14, 2006  By:   /s/ Robert Sarver    
    Robert Sarver   
    President and Chief Executive Officer   
         
Date: August 14, 2006  By:   /s/ Dale Gibbons    
    Dale Gibbons   
    Executive Vice President and
Chief Financial Officer 
 
         
Date: August 14, 2006           /s/ Terry A. Shirey    
    Terry A. Shirey   
    Controller
Principal Accounting Officer 
 

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EXHIBIT INDEX
31.1   CEO Certification Pursuant to Rule 13a-14(a)/15d-14(a)
 
31.2   CFO Certification Pursuant to Rule 13a-14(a)/15d-14(a)
 
32   CEO and CFO Certification Pursuant to 18 U.S.C. Section 1350, as adopted pursuant to Section 906 of the Sarbanes-Oxley Act of 2002.

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