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Western Alliance Bancorporation – ‘10-Q’ for 6/30/21 – ‘EX-101.SCH’

On:  Friday, 7/30/21, at 4:42pm ET   ·   For:  6/30/21   ·   Accession #:  1212545-21-151   ·   File #:  1-32550

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  As Of               Filer                 Filing    For·On·As Docs:Size

 7/30/21  Western Alliance Bancorporation   10-Q        6/30/21   93:26M

Quarterly Report   —   Form 10-Q

Filing Table of Contents

Document/Exhibit                   Description                      Pages   Size 

 1: 10-Q        Quarterly Report                                    HTML   3.18M 
 2: EX-10.2     Material Contract                                   HTML    160K 
 3: EX-10.3     Material Contract                                   HTML     41K 
 4: EX-10.4     Material Contract                                   HTML     41K 
 5: EX-31.1     Certification -- §302 - SOA'02                      HTML     31K 
 6: EX-31.2     Certification -- §302 - SOA'02                      HTML     31K 
 7: EX-32       Certification -- §906 - SOA'02                      HTML     29K 
14: R1          Document and Entity Information                     HTML     83K 
15: R2          Consolidated Balance Sheets                         HTML    148K 
16: R3          Consolidated Balance Sheets (Parenthetical)         HTML     38K 
17: R4          Consolidated Statements of Operations               HTML    154K 
18: R5          Consolidated Statements of Comprehensive Income     HTML     68K 
19: R6          Consolidated Statements of Stockholders' Equity     HTML    105K 
20: R7          Consolidated Statements of Cash Flows               HTML    157K 
21: R8          Summary of Significant Accounting Policies          HTML    152K 
22: R9          Business Combinations                               HTML     62K 
23: R10         Investment Securities                               HTML    376K 
24: R11         Qualifying Debt                                     HTML     61K 
25: R12         Stockholders' Equity                                HTML     37K 
26: R13         Accumulated Other Comprehensive Income              HTML    108K 
27: R14         Derivatives and Hedging                             HTML    215K 
28: R15         Earnings per Share                                  HTML     45K 
29: R16         Income Taxes                                        HTML     33K 
30: R17         Fair Value Accounting                               HTML    326K 
31: R18         Segments                                            HTML     37K 
32: R19         Revenue from Contracts with Customers (Notes)       HTML    124K 
33: R20         Summary of Significant Accounting Policies          HTML    212K 
                (Policies)                                                       
34: R21         Investment Securities (Tables)                      HTML    376K 
35: R22         Loans, Leases and Allowance for Credit Losses       HTML    880K 
                (Tables)                                                         
36: R23         Other Borrowings (Tables)                           HTML     42K 
37: R24         Accumulated Other Comprehensive Income (Tables)     HTML    108K 
38: R25         Derivatives and Hedging (Tables)                    HTML    246K 
39: R26         Earnings per Share (Tables)                         HTML     44K 
40: R27         Commitments and Contingencies (Tables)              HTML     36K 
41: R28         Fair Value Accounting (Tables)                      HTML    237K 
42: R29         Segments (Tables)                                   HTML    188K 
43: R30         Revenue from Contracts with Customers (Tables)      HTML    113K 
44: R31         Summary of Significant Accounting Policies -        HTML     45K 
                Additional Information (Detail)                                  
45: R32         Business Combinations (Details)                     HTML     97K 
46: R33         Investment Securities - Carrying Amounts and Fair   HTML    226K 
                Values of Investment Securities (Detail)                         
47: R34         Investment Securities - Additional Information      HTML     31K 
                (Detail)                                                         
48: R35         Investment Securities - Unrealized Losses and Fair  HTML     98K 
                Value of Investment Securities in Continuous                     
                Unrealized Loss Position (Detail)                                
49: R36         Investment Securities - Amortized Cost and Fair     HTML     89K 
                Value of Investment Securities by Contractual                    
                Maturities (Detail)                                              
50: R37         Investment Securities - Investment Securities by    HTML    186K 
                Credit Rating Type (Detail)                                      
51: R38         Investment Securities Investment Securities -       HTML     37K 
                Allowance for Credit Losses - HTM (Details)                      
52: R39         Loans Held For Sale (Details)                       HTML     64K 
53: R40         Loans, Leases and Allowance for Credit Losses -     HTML     65K 
                Schedule of Held for Investment Loan Portfolio                   
                Composition of Loans, Leases and Allowance for                   
                Credit Losses (Detail)                                           
54: R41         Loans, Leases and Allowance for Credit Losses -     HTML    106K 
                Summary of Recorded Investment in Nonaccrual Loans               
                and Loans Past Due 90 Days Still Accruing Interest               
                by Loan Class (Detail)                                           
55: R42         Contractual Aging of Loan Portfolio by Segment      HTML    286K 
56: R43         Loans, Leases and Allowance for Credit Losses -     HTML    286K 
                Loans by Risk Rating (Detail)                                    
57: R44         Loans, Leases and Allowance for Credit Losses       HTML     82K 
                Loans, Leases and Allowance for Credit Losses -                  
                Troubled Debt Restructurings (Details)                           
58: R45         Loans, Leases and Allowance for Credit Losses       HTML     76K 
                Loans, Leases and Allowance for Credit Losses -                  
                Collateral Dependent Loans (Details)                             
59: R46         Loans, Leases and Allowance for Credit Losses -     HTML    147K 
                Allowances for Credit Losses (Detail) Valuation                  
60: R47         Loans, Leases and Allowance for Credit Losses       HTML     53K 
                Loans, Leases and Allowance for Credit Losses -                  
                Loan Purchases and Sales (Details)                               
61: R48         MSR Portfolio (Details)                             HTML     58K 
62: R49         UPB in MSR Portfolio (Details)                      HTML     28K 
63: R50         Hypothetical Change in FV (Details)                 HTML     47K 
64: R51         Net Loan Servicing Revenue (Details)                HTML     51K 
65: R52         Other Borrowings - Additional Information (Detail)  HTML     73K 
66: R53         Qualifying Debt (Details)                           HTML     61K 
67: R54         Stockholders' Equity - Additional Information       HTML     84K 
                (Detail)                                                         
68: R55         Stockholders' Equity Common Stock Repurchase        HTML     38K 
                (Details)                                                        
69: R56         Accumulated Other Comprehensive Income - Summary    HTML     56K 
                of Changes in Accumulated Other Comprehensive                    
                Income (Detail)                                                  
70: R57         Accumulated Other Comprehensive Income - Schedule   HTML     35K 
                of Reclassifications Out of Accumulated Other                    
                Comprehensive Income (Detail)                                    
71: R58         Derivatives and Hedging Fair Value of Derivative    HTML    101K 
                Contracts (Detail)                                               
72: R59         Derivatives and Hedging Pre-Tax Net Gains (Losses)  HTML     36K 
                on Fair Value Hedges (Detail)                                    
73: R60         Derivatives and Hedging Largest Exposure to         HTML     38K 
                Individual Counterparty (Detail)                                 
74: R61         Derivatives and Hedging Additional Information      HTML     73K 
                (Detail)                                                         
75: R62         Earnings per Share (Details)                        HTML     53K 
76: R63         Income Taxes Additional Information (Details)       HTML     42K 
77: R64         Commitments and Contingencies - Additional          HTML     50K 
                Information (Detail)                                             
78: R65         Commitments and Contingencies - Summary of          HTML     47K 
                Contractual Amounts for Unfunded Commitments and                 
                Letters of Credit (Detail)                                       
79: R66         Commitments and Contingencies Lease Commitments     HTML     32K 
                (Details)                                                        
80: R67         Fair Value Accounting - Gains and Losses from Fair  HTML     49K 
                Value Changes Included in Consolidated Statement                 
                of Operations (Detail)                                           
81: R68         Fair Value Accounting - Fair Value of Assets and    HTML    110K 
                Liabilities (Detail)                                             
82: R69         Fair Value Accounting - Change in Level 3           HTML    115K 
                Liabilities Measured at Fair Value on Recurring                  
                Basis (Detail)                                                   
83: R70         Fair Value Accounting - Assets Measured at Fair     HTML     62K 
                Value on Nonrecurring Basis (Detail)                             
84: R71         Fair Value Accounting - Estimated Fair Value of     HTML    128K 
                Financial Instruments (Detail)                                   
85: R72         Fair Value Accounting - Additional Information      HTML    223K 
                (Detail)                                                         
86: R73         Segments - Operating Segment Information (Detail)   HTML    176K 
87: R74         Revenue from Contracts with Customers (Details)     HTML     59K 
88: R75         Subsequent Events (Details)                         HTML     31K 
89: R9999       Uncategorized Items - wal-20210630.htm              HTML     44K 
91: XML         IDEA XML File -- Filing Summary                      XML    169K 
13: XML         XBRL Instance -- wal-20210630_htm                    XML   8.48M 
90: EXCEL       IDEA Workbook of Financial Reports                  XLSX    212K 
 9: EX-101.CAL  XBRL Calculations -- wal-20210630_cal                XML    225K 
10: EX-101.DEF  XBRL Definitions -- wal-20210630_def                 XML   1.76M 
11: EX-101.LAB  XBRL Labels -- wal-20210630_lab                      XML   2.56M 
12: EX-101.PRE  XBRL Presentations -- wal-20210630_pre               XML   1.96M 
 8: EX-101.SCH  XBRL Schema -- wal-20210630                          XSD    244K 
92: JSON        XBRL Instance as JSON Data -- MetaLinks              571±   905K 
93: ZIP         XBRL Zipped Folder -- 0001212545-21-000151-xbrl      Zip    757K

‘EX-101.SCH’   —   XBRL Schema — wal-20210630

This Exhibit is an XBRL XML File.

                                                                                                                                                                                
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<link:definition> 2420414 - Disclosure - Contractual Aging of Loan Portfolio by Segment </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
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<link:definition> 2421415 - Disclosure - Loans, Leases and Allowance for Credit Losses - Loans by Risk Rating (Detail) </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
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<link:definition> 2422416 - Disclosure - Loans, Leases and Allowance for Credit Losses Loans, Leases and Allowance for Credit Losses - Troubled Debt Restructurings (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
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<link:definition> 2423417 - Disclosure - Loans, Leases and Allowance for Credit Losses Loans, Leases and Allowance for Credit Losses - Collateral Dependent Loans (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
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<link:roleType id="LoansLeasesandAllowanceforCreditLossesAllowancesforCreditLossesDetailValuation" roleURI="http://www.westernalliancebancorp.com/role/LoansLeasesandAllowanceforCreditLossesAllowancesforCreditLossesDetailValuation">
<link:definition> 2424418 - Disclosure - Loans, Leases and Allowance for Credit Losses - Allowances for Credit Losses (Detail) Valuation </link:definition>
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<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="LoansLeasesandAllowanceforCreditLossesLoansLeasesandAllowanceforCreditLossesLoanPurchasesandSalesDetails" roleURI="http://www.westernalliancebancorp.com/role/LoansLeasesandAllowanceforCreditLossesLoansLeasesandAllowanceforCreditLossesLoanPurchasesandSalesDetails">
<link:definition> 2425419 - Disclosure - Loans, Leases and Allowance for Credit Losses Loans, Leases and Allowance for Credit Losses - Loan Purchases and Sales (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="LoansLeasesandAllowanceforCreditLossesTables" roleURI="http://www.westernalliancebancorp.com/role/LoansLeasesandAllowanceforCreditLossesTables">
<link:definition> 2326303 - Disclosure - Loans, Leases and Allowance for Credit Losses (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="ReceivablesLoansNotesReceivableandOthers" roleURI="http://www.westernalliancebancorp.com/role/ReceivablesLoansNotesReceivableandOthers">
<link:definition> 2127104 - Disclosure - Receivables, Loans, Notes Receivable, and Others </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="MSRPortfolioDetails" roleURI="http://www.westernalliancebancorp.com/role/MSRPortfolioDetails">
<link:definition> 2428420 - Disclosure - MSR Portfolio (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="UPBinMSRPortfolioDetails" roleURI="http://www.westernalliancebancorp.com/role/UPBinMSRPortfolioDetails">
<link:definition> 2429421 - Disclosure - UPB in MSR Portfolio (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="HypotheticalChangeinFVDetails" roleURI="http://www.westernalliancebancorp.com/role/HypotheticalChangeinFVDetails">
<link:definition> 2430422 - Disclosure - Hypothetical Change in FV (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="NetLoanServicingRevenueDetails" roleURI="http://www.westernalliancebancorp.com/role/NetLoanServicingRevenueDetails">
<link:definition> 2431423 - Disclosure - Net Loan Servicing Revenue (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="OtherBorrowings" roleURI="http://www.westernalliancebancorp.com/role/OtherBorrowings">
<link:definition> 2132105 - Disclosure - Other Borrowings </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="OtherBorrowingsTables" roleURI="http://www.westernalliancebancorp.com/role/OtherBorrowingsTables">
<link:definition> 2333304 - Disclosure - Other Borrowings (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="OtherBorrowingsAdditionalInformationDetail" roleURI="http://www.westernalliancebancorp.com/role/OtherBorrowingsAdditionalInformationDetail">
<link:definition> 2434424 - Disclosure - Other Borrowings - Additional Information (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="QualifyingDebt" roleURI="http://www.westernalliancebancorp.com/role/QualifyingDebt">
<link:definition> 2135106 - Disclosure - Qualifying Debt </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="QualifyingDebtDetails" roleURI="http://www.westernalliancebancorp.com/role/QualifyingDebtDetails">
<link:definition> 2436425 - Disclosure - Qualifying Debt (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="StockholdersEquity" roleURI="http://www.westernalliancebancorp.com/role/StockholdersEquity">
<link:definition> 2137107 - Disclosure - Stockholders' Equity </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="StockholdersEquityCommonStockRepurchasePolicies" roleURI="http://www.westernalliancebancorp.com/role/StockholdersEquityCommonStockRepurchasePolicies">
<link:definition> 2238202 - Disclosure - Stockholders' Equity Common Stock Repurchase (Policies) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="StockholdersEquityCashDividendPolicies" roleURI="http://www.westernalliancebancorp.com/role/StockholdersEquityCashDividendPolicies">
<link:definition> 2239203 - Disclosure - Stockholders' Equity Cash Dividend (Policies) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="StockholdersEquityAdditionalInformationDetail" roleURI="http://www.westernalliancebancorp.com/role/StockholdersEquityAdditionalInformationDetail">
<link:definition> 2440426 - Disclosure - Stockholders' Equity - Additional Information (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="StockholdersEquityCommonStockRepurchaseDetails" roleURI="http://www.westernalliancebancorp.com/role/StockholdersEquityCommonStockRepurchaseDetails">
<link:definition> 2441427 - Disclosure - Stockholders' Equity Common Stock Repurchase (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="AccumulatedOtherComprehensiveIncome" roleURI="http://www.westernalliancebancorp.com/role/AccumulatedOtherComprehensiveIncome">
<link:definition> 2142108 - Disclosure - Accumulated Other Comprehensive Income </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="AccumulatedOtherComprehensiveIncomeTables" roleURI="http://www.westernalliancebancorp.com/role/AccumulatedOtherComprehensiveIncomeTables">
<link:definition> 2343305 - Disclosure - Accumulated Other Comprehensive Income (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="AccumulatedOtherComprehensiveIncomeSummaryofChangesinAccumulatedOtherComprehensiveIncomeDetail" roleURI="http://www.westernalliancebancorp.com/role/AccumulatedOtherComprehensiveIncomeSummaryofChangesinAccumulatedOtherComprehensiveIncomeDetail">
<link:definition> 2444428 - Disclosure - Accumulated Other Comprehensive Income - Summary of Changes in Accumulated Other Comprehensive Income (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="AccumulatedOtherComprehensiveIncomeScheduleofReclassificationsOutofAccumulatedOtherComprehensiveIncomeDetail" roleURI="http://www.westernalliancebancorp.com/role/AccumulatedOtherComprehensiveIncomeScheduleofReclassificationsOutofAccumulatedOtherComprehensiveIncomeDetail">
<link:definition> 2445429 - Disclosure - Accumulated Other Comprehensive Income - Schedule of Reclassifications Out of Accumulated Other Comprehensive Income (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="DerivativesandHedging" roleURI="http://www.westernalliancebancorp.com/role/DerivativesandHedging">
<link:definition> 2146109 - Disclosure - Derivatives and Hedging </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="DerivativesandHedgingTables" roleURI="http://www.westernalliancebancorp.com/role/DerivativesandHedgingTables">
<link:definition> 2347306 - Disclosure - Derivatives and Hedging (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="DerivativesandHedgingFairValueofDerivativeContractsDetail" roleURI="http://www.westernalliancebancorp.com/role/DerivativesandHedgingFairValueofDerivativeContractsDetail">
<link:definition> 2448430 - Disclosure - Derivatives and Hedging Fair Value of Derivative Contracts (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="DerivativesandHedgingPreTaxNetGainsLossesonFairValueHedgesDetail" roleURI="http://www.westernalliancebancorp.com/role/DerivativesandHedgingPreTaxNetGainsLossesonFairValueHedgesDetail">
<link:definition> 2449431 - Disclosure - Derivatives and Hedging Pre-Tax Net Gains (Losses) on Fair Value Hedges (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="DerivativesandHedgingLargestExposuretoIndividualCounterpartyDetail" roleURI="http://www.westernalliancebancorp.com/role/DerivativesandHedgingLargestExposuretoIndividualCounterpartyDetail">
<link:definition> 2450432 - Disclosure - Derivatives and Hedging Largest Exposure to Individual Counterparty (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="DerivativesandHedgingAdditionalInformationDetail" roleURI="http://www.westernalliancebancorp.com/role/DerivativesandHedgingAdditionalInformationDetail">
<link:definition> 2451433 - Disclosure - Derivatives and Hedging Additional Information (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="EarningsperShare" roleURI="http://www.westernalliancebancorp.com/role/EarningsperShare">
<link:definition> 2152110 - Disclosure - Earnings per Share </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="EarningsperShareTables" roleURI="http://www.westernalliancebancorp.com/role/EarningsperShareTables">
<link:definition> 2353307 - Disclosure - Earnings per Share (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="EarningsperShareDetails" roleURI="http://www.westernalliancebancorp.com/role/EarningsperShareDetails">
<link:definition> 2454434 - Disclosure - Earnings per Share (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="IncomeTaxes" roleURI="http://www.westernalliancebancorp.com/role/IncomeTaxes">
<link:definition> 2155111 - Disclosure - Income Taxes </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="IncomeTaxesAdditionalInformationDetails" roleURI="http://www.westernalliancebancorp.com/role/IncomeTaxesAdditionalInformationDetails">
<link:definition> 2456435 - Disclosure - Income Taxes Additional Information (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="CommitmentsandContingencies" roleURI="http://www.westernalliancebancorp.com/role/CommitmentsandContingencies">
<link:definition> 2157112 - Disclosure - Commitments and Contingencies </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="CommitmentsandContingenciesTables" roleURI="http://www.westernalliancebancorp.com/role/CommitmentsandContingenciesTables">
<link:definition> 2358308 - Disclosure - Commitments and Contingencies (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="CommitmentsandContingenciesAdditionalInformationDetail" roleURI="http://www.westernalliancebancorp.com/role/CommitmentsandContingenciesAdditionalInformationDetail">
<link:definition> 2459436 - Disclosure - Commitments and Contingencies - Additional Information (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="CommitmentsandContingenciesSummaryofContractualAmountsforUnfundedCommitmentsandLettersofCreditDetail" roleURI="http://www.westernalliancebancorp.com/role/CommitmentsandContingenciesSummaryofContractualAmountsforUnfundedCommitmentsandLettersofCreditDetail">
<link:definition> 2460437 - Disclosure - Commitments and Contingencies - Summary of Contractual Amounts for Unfunded Commitments and Letters of Credit (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="CommitmentsandContingenciesLeaseCommitmentsDetails" roleURI="http://www.westernalliancebancorp.com/role/CommitmentsandContingenciesLeaseCommitmentsDetails">
<link:definition> 2461438 - Disclosure - Commitments and Contingencies Lease Commitments (Details) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="FairValueAccounting" roleURI="http://www.westernalliancebancorp.com/role/FairValueAccounting">
<link:definition> 2162113 - Disclosure - Fair Value Accounting </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="FairValueAccountingTables" roleURI="http://www.westernalliancebancorp.com/role/FairValueAccountingTables">
<link:definition> 2363309 - Disclosure - Fair Value Accounting (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="FairValueAccountingGainsandLossesfromFairValueChangesIncludedinConsolidatedStatementofOperationsDetail" roleURI="http://www.westernalliancebancorp.com/role/FairValueAccountingGainsandLossesfromFairValueChangesIncludedinConsolidatedStatementofOperationsDetail">
<link:definition> 2464439 - Disclosure - Fair Value Accounting - Gains and Losses from Fair Value Changes Included in Consolidated Statement of Operations (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="FairValueAccountingFairValueofAssetsandLiabilitiesDetail" roleURI="http://www.westernalliancebancorp.com/role/FairValueAccountingFairValueofAssetsandLiabilitiesDetail">
<link:definition> 2465440 - Disclosure - Fair Value Accounting - Fair Value of Assets and Liabilities (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="FairValueAccountingChangeinLevel3LiabilitiesMeasuredatFairValueonRecurringBasisDetail" roleURI="http://www.westernalliancebancorp.com/role/FairValueAccountingChangeinLevel3LiabilitiesMeasuredatFairValueonRecurringBasisDetail">
<link:definition> 2466441 - Disclosure - Fair Value Accounting - Change in Level 3 Liabilities Measured at Fair Value on Recurring Basis (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="FairValueAccountingAssetsMeasuredatFairValueonNonrecurringBasisDetail" roleURI="http://www.westernalliancebancorp.com/role/FairValueAccountingAssetsMeasuredatFairValueonNonrecurringBasisDetail">
<link:definition> 2467442 - Disclosure - Fair Value Accounting - Assets Measured at Fair Value on Nonrecurring Basis (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="FairValueAccountingChangeinLevel3UnobservableInputs" roleURI="http://www.westernalliancebancorp.com/role/FairValueAccountingChangeinLevel3UnobservableInputs">
<link:definition> 2468443 - Disclosure - Fair Value Accounting - Change in Level 3 Unobservable Inputs </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="FairValueAccountingEstimatedFairValueofFinancialInstrumentsDetail" roleURI="http://www.westernalliancebancorp.com/role/FairValueAccountingEstimatedFairValueofFinancialInstrumentsDetail">
<link:definition> 2469444 - Disclosure - Fair Value Accounting - Estimated Fair Value of Financial Instruments (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="FairValueAccountingAdditionalInformationDetail" roleURI="http://www.westernalliancebancorp.com/role/FairValueAccountingAdditionalInformationDetail">
<link:definition> 2470445 - Disclosure - Fair Value Accounting - Additional Information (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="Segments" roleURI="http://www.westernalliancebancorp.com/role/Segments">
<link:definition> 2171114 - Disclosure - Segments </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="SegmentsTables" roleURI="http://www.westernalliancebancorp.com/role/SegmentsTables">
<link:definition> 2372310 - Disclosure - Segments (Tables) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="SegmentsOperatingSegmentInformationDetail" roleURI="http://www.westernalliancebancorp.com/role/SegmentsOperatingSegmentInformationDetail">
<link:definition> 2473446 - Disclosure - Segments - Operating Segment Information (Detail) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
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<link:roleType id="RevenuefromContractswithCustomersNotes" roleURI="http://www.westernalliancebancorp.com/role/RevenuefromContractswithCustomersNotes">
<link:definition> 2174115 - Disclosure - Revenue from Contracts with Customers (Notes) </link:definition>
<link:usedOn> link:presentationLink </link:usedOn>
<link:usedOn> link:calculationLink </link:usedOn>
<link:usedOn> link:definitionLink </link:usedOn>
</link:roleType>
<link:roleType id="RevenuefromContractswithCustomersTables" roleURI="http://www.westernalliancebancorp.com/role/RevenuefromContractswithCustomersTables">
<link:definition> 2375311 - Disclosure - Revenue from Contracts with Customers (Tables) </link:definition>
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<xs:element id="wal_IncomefromEquityInvestments" abstract="false" name="IncomefromEquityInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_PullThroughRateMember" abstract="true" name="PullThroughRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_Lesseeoperatingleaseothercost" abstract="false" name="Lesseeoperatingleaseothercost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_MaximumLoanToValueRatio" abstract="false" name="MaximumLoanToValueRatio" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="num:percentItemType"/>
<xs:element id="wal_CorporateCreditQualityIndicatorUnratedMember" abstract="true" name="CorporateCreditQualityIndicatorUnratedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_SubordinatedDebenturesMaturingJune2031Member" abstract="true" name="SubordinatedDebenturesMaturingJune2031Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_RealizationOfCashFlows" abstract="false" name="RealizationOfCashFlows" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_FairValueOptionLoansHeldAsAssetsUPB" abstract="false" name="FairValueOptionLoansHeldAsAssetsUPB" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_OptionAdjustedSpreadMember" abstract="true" name="OptionAdjustedSpreadMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_LoansHFSAbstract" abstract="true" name="LoansHFSAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
<xs:element id="wal_MSRSalesUPBOfUnderlyingLoans" abstract="false" name="MSRSalesUPBOfUnderlyingLoans" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_TroubledDebtRestructuringsAbstract" abstract="true" name="TroubledDebtRestructuringsAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
<xs:element id="wal_PurchasedFromGinnieMaeMember" abstract="true" name="PurchasedFromGinnieMaeMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_InvestmentRatingsPositionTableTextBlock" abstract="false" name="InvestmentRatingsPositionTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
<xs:element id="wal_DocumentDocumentAndEntityInformationAbstract" abstract="true" name="DocumentDocumentAndEntityInformationAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
<xs:element id="wal_NatureOfOperationPolicyTextBlock" abstract="false" name="NatureOfOperationPolicyTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
<xs:element id="wal_SecuritiesHeldToMaturityAvailableForSaleSecuritiesAndSecuritiesMeasuredAtFairValueTableTextBlock" abstract="false" name="SecuritiesHeldToMaturityAvailableForSaleSecuritiesAndSecuritiesMeasuredAtFairValueTableTextBlock" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:textBlockItemType"/>
<xs:element id="wal_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentDecreaseCostOfService" abstract="false" name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf10PercentDecreaseCostOfService" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_FairValueOptionLoansHeldAsAssetsUPBCurrentThrough89Days" abstract="false" name="FairValueOptionLoansHeldAsAssetsUPBCurrentThrough89Days" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_StockIssuedDuringPeriodOfferingCost" abstract="false" name="StockIssuedDuringPeriodOfferingCost" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_Debitandcreditcardinterchangefees" abstract="false" name="Debitandcreditcardinterchangefees" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilityForLoansEligibleForRepurchase" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLiabilityForLoansEligibleForRepurchase" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_OthercommercialandindustrialMember" abstract="true" name="OthercommercialandindustrialMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansEligibleForRepurchase" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedLoansEligibleForRepurchase" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_NetGainOnLoanOriginationAndSaleActivities" abstract="false" name="NetGainOnLoanOriginationAndSaleActivities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_CollateralDependentLoansAbstract" abstract="true" name="CollateralDependentLoansAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
<xs:element id="wal_DerivativeNettingAdjustmentsLiabilities" abstract="false" name="DerivativeNettingAdjustmentsLiabilities" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_PaymentstoAcquireSecuritiesEquity" abstract="false" name="PaymentstoAcquireSecuritiesEquity" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_Othernoninterestincome" abstract="false" name="Othernoninterestincome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_ConsumerRelatedSegmentMember" abstract="true" name="ConsumerRelatedSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_CreditCardCommitmentsAndFinancialGuaranteesMember" abstract="true" name="CreditCardCommitmentsAndFinancialGuaranteesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_OtherCollateralMember" abstract="true" name="OtherCollateralMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_DebtSecuritiesHeldToMaturityNetOfAllowance" abstract="false" name="DebtSecuritiesHeldToMaturityNetOfAllowance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_GovernmentInsuredMember" abstract="true" name="GovernmentInsuredMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_FairValueOptionLoansHeldAsAssetsCurrentThrough89DaysAggregateDifference" abstract="false" name="FairValueOptionLoansHeldAsAssetsCurrentThrough89DaysAggregateDifference" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_QualifyingDebtDisclosureAbstract" abstract="true" name="QualifyingDebtDisclosureAbstract" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:stringItemType"/>
<xs:element id="wal_LoansInForbearance" abstract="false" name="LoansInForbearance" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_Level3FairValueMeasurementInputs" abstract="false" name="Level3FairValueMeasurementInputs" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="us-types:durationStringItemType"/>
<xs:element id="wal_ServicingAdvancesAllowanceForOtherCreditLosses" abstract="false" name="ServicingAdvancesAllowanceForOtherCreditLosses" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_ServicingFeeRateMember" abstract="true" name="ServicingFeeRateMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_NetExposureAfterNettingAdjustmentsAndCollateral" abstract="false" name="NetExposureAfterNettingAdjustmentsAndCollateral" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_CorporateCreditQualityIndicatorAaaMember" abstract="true" name="CorporateCreditQualityIndicatorAaaMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_BusinessAcquisitionProFormaInterestIncome" abstract="false" name="BusinessAcquisitionProFormaInterestIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_SubordinatedDebenturesMaturingJune2030MemberMember" abstract="true" name="SubordinatedDebenturesMaturingJune2030MemberMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_GainLossOnSaleAndValuationOfInvestmentSecuritiesAndOtherAssetsNet" abstract="false" name="GainLossOnSaleAndValuationOfInvestmentSecuritiesAndOtherAssetsNet" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_UnsecuredLettersOfCredit" abstract="false" name="UnsecuredLettersOfCredit" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_WarehouselendingMember" abstract="true" name="WarehouselendingMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_PurchaseofSBICInvestments" abstract="false" name="PurchaseofSBICInvestments" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_FairValueOptionLoansHeldAsAssets" abstract="false" name="FairValueOptionLoansHeldAsAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_RatedSecuritiesMember" abstract="true" name="RatedSecuritiesMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_CommercialBankingRelatedIncome" abstract="false" name="CommercialBankingRelatedIncome" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_SubordinatedDebenturesMaturingJuly2056Member" abstract="true" name="SubordinatedDebenturesMaturingJuly2056Member" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_EarlyBuyoutsOfLoansFromGinnieMaeSecurities" abstract="false" name="EarlyBuyoutsOfLoansFromGinnieMaeSecurities" nillable="true" xbrli:periodType="duration" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_LegalProfessionalAndDirectorFees" abstract="false" name="LegalProfessionalAndDirectorFees" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_MSRLoanSalesReceivable" abstract="false" name="MSRLoanSalesReceivable" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_DebtSecuritiesHeldtomaturityNet" abstract="false" name="DebtSecuritiesHeldtomaturityNet" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_NetLossGainOnSalesValuationsOfRepossessedAssetsAndBankPremisesNet" abstract="false" name="NetLossGainOnSalesValuationsOfRepossessedAssetsAndBankPremisesNet" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_CorporateCreditQualityIndicatorPlusToMinusMember" abstract="true" name="CorporateCreditQualityIndicatorPlusToMinusMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_CommercialSegmentMember" abstract="true" name="CommercialSegmentMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_NumberOfUnconsolidatedSubsidiaries" abstract="false" name="NumberOfUnconsolidatedSubsidiaries" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="xbrli:integerItemType"/>
<xs:element id="wal_CraInvestmentsMember" abstract="true" name="CraInvestmentsMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_RealEstateCollateralMember" abstract="true" name="RealEstateCollateralMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicingAssets" abstract="false" name="BusinessCombinationRecognizedIdentifiableAssetsAcquiredAndLiabilitiesAssumedServicingAssets" nillable="true" xbrli:periodType="instant" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_CommercialRealEstateOwnerOccupiedMember" abstract="true" name="CommercialRealEstateOwnerOccupiedMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_LoanAndRepossessedAssetExpense" abstract="false" name="LoanAndRepossessedAssetExpense" nillable="true" xbrli:periodType="duration" xbrli:balance="debit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
<xs:element id="wal_EBOMember" abstract="true" name="EBOMember" nillable="true" xbrli:periodType="duration" substitutionGroup="xbrli:item" type="nonnum:domainItemType"/>
<xs:element id="wal_SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf50BasisPointDiscountRateIncrease" abstract="false" name="SensitivityAnalysisOfFairValueTransferorsInterestsInTransferredFinancialAssetsImpactOf50BasisPointDiscountRateIncrease" nillable="true" xbrli:periodType="instant" xbrli:balance="credit" substitutionGroup="xbrli:item" type="xbrli:monetaryItemType"/>
</xs:schema>

5 Subsequent Filings that Reference this Filing

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 2/28/24  Western Alliance Bancorporation   10-K       12/31/23  158:34M
 2/23/23  Western Alliance Bancorporation   10-K       12/31/22  128:29M
 2/25/22  Western Alliance Bancorporation   10-K       12/31/21  130:28M
 9/16/21  Western Alliance Bancorporation   424B5                  1:656K                                   Donnelley … Solutions/FA
 9/15/21  Western Alliance Bancorporation   424B5                  1:663K                                   Donnelley … Solutions/FA

6 Previous Filings that this Filing References

  As Of               Filer                 Filing    For·On·As Docs:Size             Issuer                      Filing Agent

 7/01/21  Western Alliance Bancorporation   8-K:2,9     6/28/21   12:1.2M
 6/07/21  Western Alliance Bancorporation   8-K:8,9     6/07/21   15:1.3M                                   Donnelley … Solutions/FA
 6/03/21  Western Alliance Bancorporation   8-K:1,9     6/03/21   13:453K                                   Donnelley … Solutions/FA
 3/01/19  Western Alliance Bancorporation   10-K       12/31/18  149:35M
 5/22/15  Western Alliance Bancorporation   8-K:5,9     5/19/15    3:236K
 6/03/14  Western Alliance Bancorporation   8-K:3,5,9   5/29/14    8:492K                                   Donnelley … Solutions/FA
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Filing Submission 0001212545-21-000151   –   Alternative Formats (Word / Rich Text, HTML, Plain Text, et al.)
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