<?xml version="1.0" encoding="us-ascii"?>
<link:linkbase xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.xbrl.org/2003/linkbase http://www.xbrl.org/2003/xbrl-linkbase-2003-12-31.xsd" xmlns:link="http://www.xbrl.org/2003/linkbase" xmlns:xlink="http://www.w3.org/1999/xlink" xmlns:xbrli="http://www.xbrl.org/2003/instance">
  <link:roleRef roleURI="http://eastwestbank.com/role/DocumentAndEntityInformation" xlink:type="simple" xlink:href="ewbc-20110930.xsd#DocumentAndEntityInformation" />
  <link:roleRef roleURI="http://eastwestbank.com/role/SubsequentEventsDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#SubsequentEventsDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/SubsequentEvents" xlink:type="simple" xlink:href="ewbc-20110930.xsd#SubsequentEvents" />
  <link:roleRef roleURI="http://eastwestbank.com/role/BusinessSegmentsTables" xlink:type="simple" xlink:href="ewbc-20110930.xsd#BusinessSegmentsTables" />
  <link:roleRef roleURI="http://eastwestbank.com/role/BusinessSegmentsDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#BusinessSegmentsDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/BusinessSegments" xlink:type="simple" xlink:href="ewbc-20110930.xsd#BusinessSegments" />
  <link:roleRef roleURI="http://eastwestbank.com/role/StockholdersEquityTables" xlink:type="simple" xlink:href="ewbc-20110930.xsd#StockholdersEquityTables" />
  <link:roleRef roleURI="http://eastwestbank.com/role/StockholdersEquitySharesExcludedFromCalculationOfDilutedEpsDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#StockholdersEquitySharesExcludedFromCalculationOfDilutedEpsDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/StockholdersEquityEarningsLossPerShareCalculationsDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#StockholdersEquityEarningsLossPerShareCalculationsDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/StockholdersEquityDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#StockholdersEquityDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/StockholdersEquity" xlink:type="simple" xlink:href="ewbc-20110930.xsd#StockholdersEquity" />
  <link:roleRef roleURI="http://eastwestbank.com/role/CommitmentsAndContingenciesDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#CommitmentsAndContingenciesDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/CommitmentsAndContingencies" xlink:type="simple" xlink:href="ewbc-20110930.xsd#CommitmentsAndContingencies" />
  <link:roleRef roleURI="http://eastwestbank.com/role/GoodwillAndOtherIntangibleAssetsTables" xlink:type="simple" xlink:href="ewbc-20110930.xsd#GoodwillAndOtherIntangibleAssetsTables" />
  <link:roleRef roleURI="http://eastwestbank.com/role/GoodwillAndOtherIntangibleAssetsDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#GoodwillAndOtherIntangibleAssetsDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/GoodwillAndOtherIntangibleAssets" xlink:type="simple" xlink:href="ewbc-20110930.xsd#GoodwillAndOtherIntangibleAssets" />
  <link:roleRef roleURI="http://eastwestbank.com/role/PremisesAndEquipmentDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#PremisesAndEquipmentDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/PremisesAndEquipment" xlink:type="simple" xlink:href="ewbc-20110930.xsd#PremisesAndEquipment" />
  <link:roleRef roleURI="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesTables" xlink:type="simple" xlink:href="ewbc-20110930.xsd#NonCoveredLoansAndAllowanceForLoanLossesTables" />
  <link:roleRef roleURI="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesOffBalanceSheetDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#NonCoveredLoansAndAllowanceForLoanLossesOffBalanceSheetDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesImpairmentMethodologyDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#NonCoveredLoansAndAllowanceForLoanLossesImpairmentMethodologyDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesAllowanceForLoanLossesDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#NonCoveredLoansAndAllowanceForLoanLossesAllowanceForLoanLossesDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesImpairedNonCoveredLoansDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#NonCoveredLoansAndAllowanceForLoanLossesImpairedNonCoveredLoansDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesTroubledDebtRestructuringsDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#NonCoveredLoansAndAllowanceForLoanLossesTroubledDebtRestructuringsDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesNonaccrualLoansDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#NonCoveredLoansAndAllowanceForLoanLossesNonaccrualLoansDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesCreditQualityIndicatorDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#NonCoveredLoansAndAllowanceForLoanLossesCreditQualityIndicatorDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#NonCoveredLoansAndAllowanceForLoanLossesDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLosses" xlink:type="simple" xlink:href="ewbc-20110930.xsd#NonCoveredLoansAndAllowanceForLoanLosses" />
  <link:roleRef roleURI="http://eastwestbank.com/role/CoveredAssetsAndFdicIndemnificationAssetTables" xlink:type="simple" xlink:href="ewbc-20110930.xsd#CoveredAssetsAndFdicIndemnificationAssetTables" />
  <link:roleRef roleURI="http://eastwestbank.com/role/CoveredAssetsAndFdicIndemnificationAssetFdicIndemnificationAssetAndFdicReceivableDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#CoveredAssetsAndFdicIndemnificationAssetFdicIndemnificationAssetAndFdicReceivableDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/CoveredAssetsAndFdicIndemnificationAssetCoveredAssetsAndCreditQualityIndicatorsDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#CoveredAssetsAndFdicIndemnificationAssetCoveredAssetsAndCreditQualityIndicatorsDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/CoveredAssetsAndFdicIndemnificationAssetDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#CoveredAssetsAndFdicIndemnificationAssetDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/CoveredAssetsAndFdicIndemnificationAsset" xlink:type="simple" xlink:href="ewbc-20110930.xsd#CoveredAssetsAndFdicIndemnificationAsset" />
  <link:roleRef roleURI="http://eastwestbank.com/role/DerivativeFinancialInstrumentsTables" xlink:type="simple" xlink:href="ewbc-20110930.xsd#DerivativeFinancialInstrumentsTables" />
  <link:roleRef roleURI="http://eastwestbank.com/role/DerivativeFinancialInstrumentsGainsLossesOnDerivativeInstrumentsDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#DerivativeFinancialInstrumentsGainsLossesOnDerivativeInstrumentsDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#DerivativeFinancialInstrumentsNarrativeDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/DerivativeFinancialInstrumentsFairValuesOfDerivativeInstrumentsDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#DerivativeFinancialInstrumentsFairValuesOfDerivativeInstrumentsDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/DerivativeFinancialInstrumentsDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#DerivativeFinancialInstrumentsDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/DerivativeFinancialInstruments" xlink:type="simple" xlink:href="ewbc-20110930.xsd#DerivativeFinancialInstruments" />
  <link:roleRef roleURI="http://eastwestbank.com/role/InvestmentSecuritiesTables" xlink:type="simple" xlink:href="ewbc-20110930.xsd#InvestmentSecuritiesTables" />
  <link:roleRef roleURI="http://eastwestbank.com/role/InvestmentSecuritiesUnrealizedLossesAndCorporateDebtSecuritiesDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#InvestmentSecuritiesUnrealizedLossesAndCorporateDebtSecuritiesDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/InvestmentSecuritiesInvestmentPortfolioDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#InvestmentSecuritiesInvestmentPortfolioDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/InvestmentSecuritiesRollforwardRelatedToOttiCreditLossesDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#InvestmentSecuritiesRollforwardRelatedToOttiCreditLossesDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/InvestmentSecuritiesAvailableForSalePortfolioDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#InvestmentSecuritiesAvailableForSalePortfolioDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/InvestmentSecuritiesDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#InvestmentSecuritiesDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/InvestmentSecurities" xlink:type="simple" xlink:href="ewbc-20110930.xsd#InvestmentSecurities" />
  <link:roleRef roleURI="http://eastwestbank.com/role/StockBasedCompensationTables" xlink:type="simple" xlink:href="ewbc-20110930.xsd#StockBasedCompensationTables" />
  <link:roleRef roleURI="http://eastwestbank.com/role/StockBasedCompensationDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#StockBasedCompensationDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/StockBasedCompensation" xlink:type="simple" xlink:href="ewbc-20110930.xsd#StockBasedCompensation" />
  <link:roleRef roleURI="http://eastwestbank.com/role/FairValueTables" xlink:type="simple" xlink:href="ewbc-20110930.xsd#FairValueTables" />
  <link:roleRef roleURI="http://eastwestbank.com/role/FairValueValuationMethodologiesDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#FairValueValuationMethodologiesDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/FairValueCarryingAmountsAndFairValuesOfFinancialInstrumentsDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#FairValueCarryingAmountsAndFairValuesOfFinancialInstrumentsDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/FairValueReconciliationForMajorAssetAndLiabilityDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#FairValueReconciliationForMajorAssetAndLiabilityDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/FairValueDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#FairValueDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/FairValue" xlink:type="simple" xlink:href="ewbc-20110930.xsd#FairValue" />
  <link:roleRef roleURI="http://eastwestbank.com/role/SignificantAccountingPoliciesPolicies" xlink:type="simple" xlink:href="ewbc-20110930.xsd#SignificantAccountingPoliciesPolicies" />
  <link:roleRef roleURI="http://eastwestbank.com/role/SignificantAccountingPolicies" xlink:type="simple" xlink:href="ewbc-20110930.xsd#SignificantAccountingPolicies" />
  <link:roleRef roleURI="http://eastwestbank.com/role/BasisOfPresentationDetails" xlink:type="simple" xlink:href="ewbc-20110930.xsd#BasisOfPresentationDetails" />
  <link:roleRef roleURI="http://eastwestbank.com/role/BasisOfPresentation" xlink:type="simple" xlink:href="ewbc-20110930.xsd#BasisOfPresentation" />
  <link:roleRef roleURI="http://eastwestbank.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited" xlink:type="simple" xlink:href="ewbc-20110930.xsd#CondensedConsolidatedStatementsOfCashFlowsUnaudited" />
  <link:roleRef roleURI="http://eastwestbank.com/role/CondensedConsolidatedStatementsOfChangesInStockholdersEquityAndComprehensiveIncomeUnauditedParenthetical" xlink:type="simple" xlink:href="ewbc-20110930.xsd#CondensedConsolidatedStatementsOfChangesInStockholdersEquityAndComprehensiveIncomeUnauditedParenthetical" />
  <link:roleRef roleURI="http://eastwestbank.com/role/CondensedConsolidatedStatementsOfChangesInStockholdersEquityAndComprehensiveIncomeUnaudited" xlink:type="simple" xlink:href="ewbc-20110930.xsd#CondensedConsolidatedStatementsOfChangesInStockholdersEquityAndComprehensiveIncomeUnaudited" />
  <link:roleRef roleURI="http://eastwestbank.com/role/CondensedConsolidatedStatementsOfIncomeUnaudited" xlink:type="simple" xlink:href="ewbc-20110930.xsd#CondensedConsolidatedStatementsOfIncomeUnaudited" />
  <link:roleRef roleURI="http://eastwestbank.com/role/CondensedConsolidatedBalanceSheetsUnauditedParenthetical" xlink:type="simple" xlink:href="ewbc-20110930.xsd#CondensedConsolidatedBalanceSheetsUnauditedParenthetical" />
  <link:roleRef roleURI="http://eastwestbank.com/role/CondensedConsolidatedBalanceSheetsUnaudited" xlink:type="simple" xlink:href="ewbc-20110930.xsd#CondensedConsolidatedBalanceSheetsUnaudited" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/CondensedConsolidatedBalanceSheetsUnaudited">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LiabilitiesAndStockholdersEquity" xlink:label="LiabilitiesAndStockholdersEquity" xlink:title="LiabilitiesAndStockholdersEquity" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_StockholdersEquity" xlink:label="StockholdersEquity" xlink:title="StockholdersEquity" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:label="AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:title="AccumulatedOtherComprehensiveIncomeLossNetOfTax" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="AccumulatedOtherComprehensiveIncomeLossNetOfTax" xlink:title="calculation: StockholdersEquity to AccumulatedOtherComprehensiveIncomeLossNetOfTax" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_TreasuryStockValue" xlink:label="TreasuryStockValue" xlink:title="TreasuryStockValue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="TreasuryStockValue" xlink:title="calculation: StockholdersEquity to TreasuryStockValue" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RetainedEarningsAccumulatedDeficit" xlink:label="RetainedEarningsAccumulatedDeficit" xlink:title="RetainedEarningsAccumulatedDeficit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="RetainedEarningsAccumulatedDeficit" xlink:title="calculation: StockholdersEquity to RetainedEarningsAccumulatedDeficit" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdditionalPaidInCapital" xlink:label="AdditionalPaidInCapital" xlink:title="AdditionalPaidInCapital" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="AdditionalPaidInCapital" xlink:title="calculation: StockholdersEquity to AdditionalPaidInCapital" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CommonStockValue" xlink:label="CommonStockValue" xlink:title="CommonStockValue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="CommonStockValue" xlink:title="calculation: StockholdersEquity to CommonStockValue" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockValue" xlink:label="PreferredStockValue" xlink:title="PreferredStockValue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="StockholdersEquity" xlink:to="PreferredStockValue" xlink:title="calculation: StockholdersEquity to PreferredStockValue" order="6.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="StockholdersEquity" xlink:title="calculation: LiabilitiesAndStockholdersEquity to StockholdersEquity" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Liabilities" xlink:label="Liabilities" xlink:title="Liabilities" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_AccruedInterestPayableAccruedExpensesAndOtherLiabilities" xlink:label="AccruedInterestPayableAccruedExpensesAndOtherLiabilities" xlink:title="AccruedInterestPayableAccruedExpensesAndOtherLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="AccruedInterestPayableAccruedExpensesAndOtherLiabilities" xlink:title="calculation: Liabilities to AccruedInterestPayableAccruedExpensesAndOtherLiabilities" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LongTermDebt" xlink:label="LongTermDebt" xlink:title="LongTermDebt" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="LongTermDebt" xlink:title="calculation: Liabilities to LongTermDebt" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_BankAcceptancesExecutedAndOutstanding" xlink:label="BankAcceptancesExecutedAndOutstanding" xlink:title="BankAcceptancesExecutedAndOutstanding" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="BankAcceptancesExecutedAndOutstanding" xlink:title="calculation: Liabilities to BankAcceptancesExecutedAndOutstanding" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherBorrowings" xlink:label="OtherBorrowings" xlink:title="OtherBorrowings" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="OtherBorrowings" xlink:title="calculation: Liabilities to OtherBorrowings" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SecuritiesSoldUnderAgreementsToRepurchase" xlink:label="SecuritiesSoldUnderAgreementsToRepurchase" xlink:title="SecuritiesSoldUnderAgreementsToRepurchase" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="SecuritiesSoldUnderAgreementsToRepurchase" xlink:title="calculation: Liabilities to SecuritiesSoldUnderAgreementsToRepurchase" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FederalHomeLoanBankAdvancesLongTerm" xlink:label="FederalHomeLoanBankAdvancesLongTerm" xlink:title="FederalHomeLoanBankAdvancesLongTerm" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="FederalHomeLoanBankAdvancesLongTerm" xlink:title="calculation: Liabilities to FederalHomeLoanBankAdvancesLongTerm" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Deposits" xlink:label="Deposits" xlink:title="Deposits" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestBearingDepositLiabilities" xlink:label="InterestBearingDepositLiabilities" xlink:title="InterestBearingDepositLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Deposits" xlink:to="InterestBearingDepositLiabilities" xlink:title="calculation: Deposits to InterestBearingDepositLiabilities" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NoninterestBearingDepositLiabilities" xlink:label="NoninterestBearingDepositLiabilities" xlink:title="NoninterestBearingDepositLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Deposits" xlink:to="NoninterestBearingDepositLiabilities" xlink:title="calculation: Deposits to NoninterestBearingDepositLiabilities" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Liabilities" xlink:to="Deposits" xlink:title="calculation: Liabilities to Deposits" order="7.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LiabilitiesAndStockholdersEquity" xlink:to="Liabilities" xlink:title="calculation: LiabilitiesAndStockholdersEquity to Liabilities" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Assets" xlink:label="Assets" xlink:title="Assets" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherAssets" xlink:label="OtherAssets" xlink:title="OtherAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="OtherAssets" xlink:title="calculation: Assets to OtherAssets" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_Goodwill" xlink:label="Goodwill" xlink:title="Goodwill" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="Goodwill" xlink:title="calculation: Assets to Goodwill" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_FiniteLivedCoreDepositsNet" xlink:label="FiniteLivedCoreDepositsNet" xlink:title="FiniteLivedCoreDepositsNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="FiniteLivedCoreDepositsNet" xlink:title="calculation: Assets to FiniteLivedCoreDepositsNet" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DueFromCustomerAcceptances" xlink:label="DueFromCustomerAcceptances" xlink:title="DueFromCustomerAcceptances" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="DueFromCustomerAcceptances" xlink:title="calculation: Assets to DueFromCustomerAcceptances" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestReceivable" xlink:label="InterestReceivable" xlink:title="InterestReceivable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="InterestReceivable" xlink:title="calculation: Assets to InterestReceivable" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PropertyPlantAndEquipmentNet" xlink:label="PropertyPlantAndEquipmentNet" xlink:title="PropertyPlantAndEquipmentNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="PropertyPlantAndEquipmentNet" xlink:title="calculation: Assets to PropertyPlantAndEquipmentNet" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_InvestmentInAffordableHousingPartnerships" xlink:label="InvestmentInAffordableHousingPartnerships" xlink:title="InvestmentInAffordableHousingPartnerships" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="InvestmentInAffordableHousingPartnerships" xlink:title="calculation: Assets to InvestmentInAffordableHousingPartnerships" order="7.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherRealEstateAndForeclosedAssets" xlink:label="OtherRealEstateAndForeclosedAssets" xlink:title="OtherRealEstateAndForeclosedAssets" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_OtherRealEstateOwnedCoveredNet" xlink:label="OtherRealEstateOwnedCoveredNet" xlink:title="OtherRealEstateOwnedCoveredNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherRealEstateAndForeclosedAssets" xlink:to="OtherRealEstateOwnedCoveredNet" xlink:title="calculation: OtherRealEstateAndForeclosedAssets to OtherRealEstateOwnedCoveredNet" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_OtherRealEstateOwnedNet" xlink:label="OtherRealEstateOwnedNet" xlink:title="OtherRealEstateOwnedNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="OtherRealEstateAndForeclosedAssets" xlink:to="OtherRealEstateOwnedNet" xlink:title="calculation: OtherRealEstateAndForeclosedAssets to OtherRealEstateOwnedNet" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="OtherRealEstateAndForeclosedAssets" xlink:title="calculation: Assets to OtherRealEstateAndForeclosedAssets" order="8.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_FdicIndemnificationAsset" xlink:label="FdicIndemnificationAsset" xlink:title="FdicIndemnificationAsset" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="FdicIndemnificationAsset" xlink:title="calculation: Assets to FdicIndemnificationAsset" order="9.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansAndLeasesReceivableNetReportedAmount" xlink:label="LoansAndLeasesReceivableNetReportedAmount" xlink:title="LoansAndLeasesReceivableNetReportedAmount" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_LoansReceivableExcludingCoveredLoans" xlink:label="LoansReceivableExcludingCoveredLoans" xlink:title="LoansReceivableExcludingCoveredLoans" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LoansAndLeasesReceivableNetReportedAmount" xlink:to="LoansReceivableExcludingCoveredLoans" xlink:title="calculation: LoansAndLeasesReceivableNetReportedAmount to LoansReceivableExcludingCoveredLoans" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_CoveredLoans" xlink:label="CoveredLoans" xlink:title="CoveredLoans" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="LoansAndLeasesReceivableNetReportedAmount" xlink:to="CoveredLoans" xlink:title="calculation: LoansAndLeasesReceivableNetReportedAmount to CoveredLoans" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="LoansAndLeasesReceivableNetReportedAmount" xlink:title="calculation: Assets to LoansAndLeasesReceivableNetReportedAmount" order="10.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoansReceivableHeldForSaleNet" xlink:label="LoansReceivableHeldForSaleNet" xlink:title="LoansReceivableHeldForSaleNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="LoansReceivableHeldForSaleNet" xlink:title="calculation: Assets to LoansReceivableHeldForSaleNet" order="11.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecurities" xlink:label="AvailableForSaleSecurities" xlink:title="AvailableForSaleSecurities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="AvailableForSaleSecurities" xlink:title="calculation: Assets to AvailableForSaleSecurities" order="12.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_SecuritiesPurchasedUnderAgreementsToResell" xlink:label="SecuritiesPurchasedUnderAgreementsToResell" xlink:title="SecuritiesPurchasedUnderAgreementsToResell" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="SecuritiesPurchasedUnderAgreementsToResell" xlink:title="calculation: Assets to SecuritiesPurchasedUnderAgreementsToResell" order="13.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShortTermInvestments" xlink:label="ShortTermInvestments" xlink:title="ShortTermInvestments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="ShortTermInvestments" xlink:title="calculation: Assets to ShortTermInvestments" order="14.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsAtCarryingValue" xlink:label="CashAndCashEquivalentsAtCarryingValue" xlink:title="CashAndCashEquivalentsAtCarryingValue" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="CashAndCashEquivalentsAtCarryingValue" xlink:title="calculation: Assets to CashAndCashEquivalentsAtCarryingValue" order="15.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FederalFundsSold" xlink:label="FederalFundsSold" xlink:title="FederalFundsSold" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="Assets" xlink:to="FederalFundsSold" xlink:title="calculation: Assets to FederalFundsSold" order="16.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/CondensedConsolidatedBalanceSheetsUnauditedParenthetical" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/CondensedConsolidatedStatementsOfIncomeUnaudited">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetIncomeLossAvailableToCommonStockholdersBasic" xlink:label="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:title="NetIncomeLossAvailableToCommonStockholdersBasic" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PreferredStockDividendsAndOtherAdjustments" xlink:label="PreferredStockDividendsAndOtherAdjustments" xlink:title="PreferredStockDividendsAndOtherAdjustments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="PreferredStockDividendsAndOtherAdjustments" xlink:title="calculation: NetIncomeLossAvailableToCommonStockholdersBasic to PreferredStockDividendsAndOtherAdjustments" order="1.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple" xlink:label="IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple" xlink:title="IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeTaxExpenseBenefit" xlink:label="IncomeTaxExpenseBenefit" xlink:title="IncomeTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple" xlink:to="IncomeTaxExpenseBenefit" xlink:title="calculation: IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple to IncomeTaxExpenseBenefit" order="1.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:label="IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:title="IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NoninterestExpense" xlink:label="NoninterestExpense" xlink:title="NoninterestExpense" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherNoninterestExpense" xlink:label="OtherNoninterestExpense" xlink:title="OtherNoninterestExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestExpense" xlink:to="OtherNoninterestExpense" xlink:title="calculation: NoninterestExpense to OtherNoninterestExpense" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProfessionalFees" xlink:label="ProfessionalFees" xlink:title="ProfessionalFees" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestExpense" xlink:to="ProfessionalFees" xlink:title="calculation: NoninterestExpense to ProfessionalFees" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_DepositRelatedExpenses" xlink:label="DepositRelatedExpenses" xlink:title="DepositRelatedExpenses" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestExpense" xlink:to="DepositRelatedExpenses" xlink:title="calculation: NoninterestExpense to DepositRelatedExpenses" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InformationTechnologyAndDataProcessing" xlink:label="InformationTechnologyAndDataProcessing" xlink:title="InformationTechnologyAndDataProcessing" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestExpense" xlink:to="InformationTechnologyAndDataProcessing" xlink:title="calculation: NoninterestExpense to InformationTechnologyAndDataProcessing" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LegalFees" xlink:label="LegalFees" xlink:title="LegalFees" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestExpense" xlink:to="LegalFees" xlink:title="calculation: NoninterestExpense to LegalFees" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ForeclosedRealEstateExpense" xlink:label="ForeclosedRealEstateExpense" xlink:title="ForeclosedRealEstateExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestExpense" xlink:to="ForeclosedRealEstateExpense" xlink:title="calculation: NoninterestExpense to ForeclosedRealEstateExpense" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LoanProcessingFee" xlink:label="LoanProcessingFee" xlink:title="LoanProcessingFee" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestExpense" xlink:to="LoanProcessingFee" xlink:title="calculation: NoninterestExpense to LoanProcessingFee" order="7.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FederalDepositInsuranceCorporationPremiumExpense" xlink:label="FederalDepositInsuranceCorporationPremiumExpense" xlink:title="FederalDepositInsuranceCorporationPremiumExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestExpense" xlink:to="FederalDepositInsuranceCorporationPremiumExpense" xlink:title="calculation: NoninterestExpense to FederalDepositInsuranceCorporationPremiumExpense" order="8.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_FiniteLivedIntangibleAssetsAmortizationExpense" xlink:label="FiniteLivedIntangibleAssetsAmortizationExpense" xlink:title="FiniteLivedIntangibleAssetsAmortizationExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestExpense" xlink:to="FiniteLivedIntangibleAssetsAmortizationExpense" xlink:title="calculation: NoninterestExpense to FiniteLivedIntangibleAssetsAmortizationExpense" order="9.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_AmortizationOfInvestmentsInAffordableHousingPartnerships" xlink:label="AmortizationOfInvestmentsInAffordableHousingPartnerships" xlink:title="AmortizationOfInvestmentsInAffordableHousingPartnerships" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestExpense" xlink:to="AmortizationOfInvestmentsInAffordableHousingPartnerships" xlink:title="calculation: NoninterestExpense to AmortizationOfInvestmentsInAffordableHousingPartnerships" order="10.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OccupancyNet" xlink:label="OccupancyNet" xlink:title="OccupancyNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestExpense" xlink:to="OccupancyNet" xlink:title="calculation: NoninterestExpense to OccupancyNet" order="11.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_LaborAndRelatedExpense" xlink:label="LaborAndRelatedExpense" xlink:title="LaborAndRelatedExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestExpense" xlink:to="LaborAndRelatedExpense" xlink:title="calculation: NoninterestExpense to LaborAndRelatedExpense" order="12.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_PrepaymentPenaltyForFhlbAdvancesAndOtherBorrowings" xlink:label="PrepaymentPenaltyForFhlbAdvancesAndOtherBorrowings" xlink:title="PrepaymentPenaltyForFhlbAdvancesAndOtherBorrowings" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestExpense" xlink:to="PrepaymentPenaltyForFhlbAdvancesAndOtherBorrowings" xlink:title="calculation: NoninterestExpense to PrepaymentPenaltyForFhlbAdvancesAndOtherBorrowings" order="13.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="NoninterestExpense" xlink:title="calculation: IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments to NoninterestExpense" order="1.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NoninterestIncome" xlink:label="NoninterestIncome" xlink:title="NoninterestIncome" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NoninterestIncomeOtherOperatingIncome" xlink:label="NoninterestIncomeOtherOperatingIncome" xlink:title="NoninterestIncomeOtherOperatingIncome" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestIncome" xlink:to="NoninterestIncomeOtherOperatingIncome" xlink:title="calculation: NoninterestIncome to NoninterestIncomeOtherOperatingIncome" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GainLossOnSalesOfLoansNet" xlink:label="GainLossOnSalesOfLoansNet" xlink:title="GainLossOnSalesOfLoansNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestIncome" xlink:to="GainLossOnSalesOfLoansNet" xlink:title="calculation: NoninterestIncome to GainLossOnSalesOfLoansNet" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_BankOwnedLifeInsuranceIncome" xlink:label="BankOwnedLifeInsuranceIncome" xlink:title="BankOwnedLifeInsuranceIncome" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestIncome" xlink:to="BankOwnedLifeInsuranceIncome" xlink:title="calculation: NoninterestIncome to BankOwnedLifeInsuranceIncome" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ServicingFeesNet" xlink:label="ServicingFeesNet" xlink:title="ServicingFeesNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestIncome" xlink:to="ServicingFeesNet" xlink:title="calculation: NoninterestIncome to ServicingFeesNet" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GainLossOnDispositionOfAssets" xlink:label="GainLossOnDispositionOfAssets" xlink:title="GainLossOnDispositionOfAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestIncome" xlink:to="GainLossOnDispositionOfAssets" xlink:title="calculation: NoninterestIncome to GainLossOnDispositionOfAssets" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GainLossOnSaleOfSecuritiesNet" xlink:label="GainLossOnSaleOfSecuritiesNet" xlink:title="GainLossOnSaleOfSecuritiesNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestIncome" xlink:to="GainLossOnSaleOfSecuritiesNet" xlink:title="calculation: NoninterestIncome to GainLossOnSaleOfSecuritiesNet" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_BranchFees" xlink:label="BranchFees" xlink:title="BranchFees" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestIncome" xlink:to="BranchFees" xlink:title="calculation: NoninterestIncome to BranchFees" order="7.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_DecreaseInFdicIndemnificationAssetReceivable" xlink:label="DecreaseInFdicIndemnificationAssetReceivable" xlink:title="DecreaseInFdicIndemnificationAssetReceivable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestIncome" xlink:to="DecreaseInFdicIndemnificationAssetReceivable" xlink:title="calculation: NoninterestIncome to DecreaseInFdicIndemnificationAssetReceivable" order="8.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GainLossOnInvestments" xlink:label="GainLossOnInvestments" xlink:title="GainLossOnInvestments" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ImpairmentOfInvestments" xlink:label="ImpairmentOfInvestments" xlink:title="ImpairmentOfInvestments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="GainLossOnInvestments" xlink:to="ImpairmentOfInvestments" xlink:title="calculation: GainLossOnInvestments to ImpairmentOfInvestments" order="1.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:label="OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:title="OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="GainLossOnInvestments" xlink:to="OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest" xlink:title="calculation: GainLossOnInvestments to OtherThanTemporaryImpairmentLossesInvestmentsPortionInOtherComprehensiveIncomeLossBeforeTaxIncludingPortionAttributableToNoncontrollingInterest" order="2.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestIncome" xlink:to="GainLossOnInvestments" xlink:title="calculation: NoninterestIncome to GainLossOnInvestments" order="9.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GainOnPurchaseOfBusiness" xlink:label="GainOnPurchaseOfBusiness" xlink:title="GainOnPurchaseOfBusiness" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestIncome" xlink:to="GainOnPurchaseOfBusiness" xlink:title="calculation: NoninterestIncome to GainOnPurchaseOfBusiness" order="10.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_LettersOfCreditFeesAndForeignExchangeIncome" xlink:label="LettersOfCreditFeesAndForeignExchangeIncome" xlink:title="LettersOfCreditFeesAndForeignExchangeIncome" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NoninterestIncome" xlink:to="LettersOfCreditFeesAndForeignExchangeIncome" xlink:title="calculation: NoninterestIncome to LettersOfCreditFeesAndForeignExchangeIncome" order="11.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="NoninterestIncome" xlink:title="calculation: IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments to NoninterestIncome" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestIncomeExpenseAfterProvisionForLoanLoss" xlink:label="InterestIncomeExpenseAfterProvisionForLoanLoss" xlink:title="InterestIncomeExpenseAfterProvisionForLoanLoss" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProvisionForLoanAndLeaseLosses" xlink:label="ProvisionForLoanAndLeaseLosses" xlink:title="ProvisionForLoanAndLeaseLosses" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestIncomeExpenseAfterProvisionForLoanLoss" xlink:to="ProvisionForLoanAndLeaseLosses" xlink:title="calculation: InterestIncomeExpenseAfterProvisionForLoanLoss to ProvisionForLoanAndLeaseLosses" order="1.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestIncomeExpenseNet" xlink:label="InterestIncomeExpenseNet" xlink:title="InterestIncomeExpenseNet" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpense" xlink:label="InterestExpense" xlink:title="InterestExpense" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_OtherBorrowingsInterestExpense" xlink:label="OtherBorrowingsInterestExpense" xlink:title="OtherBorrowingsInterestExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestExpense" xlink:to="OtherBorrowingsInterestExpense" xlink:title="calculation: InterestExpense to OtherBorrowingsInterestExpense" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpenseLongTermDebt" xlink:label="InterestExpenseLongTermDebt" xlink:title="InterestExpenseLongTermDebt" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestExpense" xlink:to="InterestExpenseLongTermDebt" xlink:title="calculation: InterestExpense to InterestExpenseLongTermDebt" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase" xlink:label="InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase" xlink:title="InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestExpense" xlink:to="InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase" xlink:title="calculation: InterestExpense to InterestExpenseSecuritiesSoldUnderAgreementsToRepurchase" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm" xlink:label="InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm" xlink:title="InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestExpense" xlink:to="InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm" xlink:title="calculation: InterestExpense to InterestExpenseFederalHomeLoanBankAndFederalReserveBankAdvancesLongTerm" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpenseDeposits" xlink:label="InterestExpenseDeposits" xlink:title="InterestExpenseDeposits" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestExpense" xlink:to="InterestExpenseDeposits" xlink:title="calculation: InterestExpense to InterestExpenseDeposits" order="5.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestIncomeExpenseNet" xlink:to="InterestExpense" xlink:title="calculation: InterestIncomeExpenseNet to InterestExpense" order="1.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestAndDividendIncomeOperating" xlink:label="InterestAndDividendIncomeOperating" xlink:title="InterestAndDividendIncomeOperating" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_ShortTermInvestmentsAsPresentedInStatementsOfIncome" xlink:label="ShortTermInvestmentsAsPresentedInStatementsOfIncome" xlink:title="ShortTermInvestmentsAsPresentedInStatementsOfIncome" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestAndDividendIncomeOperating" xlink:to="ShortTermInvestmentsAsPresentedInStatementsOfIncome" xlink:title="calculation: InterestAndDividendIncomeOperating to ShortTermInvestmentsAsPresentedInStatementsOfIncome" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_InvestmentInFederalReserveBankStock" xlink:label="InvestmentInFederalReserveBankStock" xlink:title="InvestmentInFederalReserveBankStock" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestAndDividendIncomeOperating" xlink:to="InvestmentInFederalReserveBankStock" xlink:title="calculation: InterestAndDividendIncomeOperating to InvestmentInFederalReserveBankStock" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_InvestmentInFederalHomeLoanBankStock" xlink:label="InvestmentInFederalHomeLoanBankStock" xlink:title="InvestmentInFederalHomeLoanBankStock" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestAndDividendIncomeOperating" xlink:to="InvestmentInFederalHomeLoanBankStock" xlink:title="calculation: InterestAndDividendIncomeOperating to InvestmentInFederalHomeLoanBankStock" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestIncomeSecuritiesPurchasedUnderAgreementsToResell" xlink:label="InterestIncomeSecuritiesPurchasedUnderAgreementsToResell" xlink:title="InterestIncomeSecuritiesPurchasedUnderAgreementsToResell" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestAndDividendIncomeOperating" xlink:to="InterestIncomeSecuritiesPurchasedUnderAgreementsToResell" xlink:title="calculation: InterestAndDividendIncomeOperating to InterestIncomeSecuritiesPurchasedUnderAgreementsToResell" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestAndDividendIncomeSecurities" xlink:label="InterestAndDividendIncomeSecurities" xlink:title="InterestAndDividendIncomeSecurities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestAndDividendIncomeOperating" xlink:to="InterestAndDividendIncomeSecurities" xlink:title="calculation: InterestAndDividendIncomeOperating to InterestAndDividendIncomeSecurities" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestAndFeeIncomeLoansAndLeases" xlink:label="InterestAndFeeIncomeLoansAndLeases" xlink:title="InterestAndFeeIncomeLoansAndLeases" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestAndDividendIncomeOperating" xlink:to="InterestAndFeeIncomeLoansAndLeases" xlink:title="calculation: InterestAndDividendIncomeOperating to InterestAndFeeIncomeLoansAndLeases" order="6.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestIncomeExpenseNet" xlink:to="InterestAndDividendIncomeOperating" xlink:title="calculation: InterestIncomeExpenseNet to InterestAndDividendIncomeOperating" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestIncomeExpenseAfterProvisionForLoanLoss" xlink:to="InterestIncomeExpenseNet" xlink:title="calculation: InterestIncomeExpenseAfterProvisionForLoanLoss to InterestIncomeExpenseNet" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:to="InterestIncomeExpenseAfterProvisionForLoanLoss" xlink:title="calculation: IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments to InterestIncomeExpenseAfterProvisionForLoanLoss" order="3.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple" xlink:to="IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" xlink:title="calculation: IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple to IncomeLossFromContinuingOperationsBeforeIncomeTaxesMinorityInterestAndIncomeLossFromEquityMethodInvestments" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetIncomeLossAvailableToCommonStockholdersBasic" xlink:to="IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple" xlink:title="calculation: NetIncomeLossAvailableToCommonStockholdersBasic to IncomeLossBeforeExtraordinaryItemsAndCumulativeEffectOfChangeInAccountingPrinciple" order="2.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/CondensedConsolidatedStatementsOfChangesInStockholdersEquityAndComprehensiveIncomeUnaudited" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/CondensedConsolidatedStatementsOfChangesInStockholdersEquityAndComprehensiveIncomeUnauditedParenthetical" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/CondensedConsolidatedStatementsOfCashFlowsUnaudited">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:label="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:title="CashAndCashEquivalentsPeriodIncreaseDecrease" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_EffectOfExchangeRateOnCashAndCashEquivalents" xlink:label="EffectOfExchangeRateOnCashAndCashEquivalents" xlink:title="EffectOfExchangeRateOnCashAndCashEquivalents" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="EffectOfExchangeRateOnCashAndCashEquivalents" xlink:title="calculation: CashAndCashEquivalentsPeriodIncreaseDecrease to EffectOfExchangeRateOnCashAndCashEquivalents" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInFinancingActivities" xlink:label="NetCashProvidedByUsedInFinancingActivities" xlink:title="NetCashProvidedByUsedInFinancingActivities" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromPaymentsForOtherFinancingActivities" xlink:label="ProceedsFromPaymentsForOtherFinancingActivities" xlink:title="ProceedsFromPaymentsForOtherFinancingActivities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="ProceedsFromPaymentsForOtherFinancingActivities" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to ProceedsFromPaymentsForOtherFinancingActivities" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsOfOrdinaryDividends" xlink:label="PaymentsOfOrdinaryDividends" xlink:title="PaymentsOfOrdinaryDividends" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="PaymentsOfOrdinaryDividends" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to PaymentsOfOrdinaryDividends" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForRepurchaseOfWarrants" xlink:label="PaymentsForRepurchaseOfWarrants" xlink:title="PaymentsForRepurchaseOfWarrants" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="PaymentsForRepurchaseOfWarrants" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to PaymentsForRepurchaseOfWarrants" order="3.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RepaymentsOfNotesPayable" xlink:label="RepaymentsOfNotesPayable" xlink:title="RepaymentsOfNotesPayable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="RepaymentsOfNotesPayable" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to RepaymentsOfNotesPayable" order="4.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RepaymentsOfLongTermDebt" xlink:label="RepaymentsOfLongTermDebt" xlink:title="RepaymentsOfLongTermDebt" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="RepaymentsOfLongTermDebt" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to RepaymentsOfLongTermDebt" order="5.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_RepaymentsOfFederalHomeLoanBankBorrowings" xlink:label="RepaymentsOfFederalHomeLoanBankBorrowings" xlink:title="RepaymentsOfFederalHomeLoanBankBorrowings" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="RepaymentsOfFederalHomeLoanBankBorrowings" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to RepaymentsOfFederalHomeLoanBankBorrowings" order="6.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" xlink:label="ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" xlink:title="ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to ProceedsFromIssuanceOfSharesUnderIncentiveAndShareBasedCompensationPlansIncludingStockOptions" order="7.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromFederalHomeLoanBankBorrowings" xlink:label="ProceedsFromFederalHomeLoanBankBorrowings" xlink:title="ProceedsFromFederalHomeLoanBankBorrowings" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="ProceedsFromFederalHomeLoanBankBorrowings" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to ProceedsFromFederalHomeLoanBankBorrowings" order="8.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromRepaymentsOfShortTermDebt" xlink:label="ProceedsFromRepaymentsOfShortTermDebt" xlink:title="ProceedsFromRepaymentsOfShortTermDebt" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="ProceedsFromRepaymentsOfShortTermDebt" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to ProceedsFromRepaymentsOfShortTermDebt" order="9.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInDeposits" xlink:label="IncreaseDecreaseInDeposits" xlink:title="IncreaseDecreaseInDeposits" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInFinancingActivities" xlink:to="IncreaseDecreaseInDeposits" xlink:title="calculation: NetCashProvidedByUsedInFinancingActivities to IncreaseDecreaseInDeposits" order="10.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="NetCashProvidedByUsedInFinancingActivities" xlink:title="calculation: CashAndCashEquivalentsPeriodIncreaseDecrease to NetCashProvidedByUsedInFinancingActivities" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInInvestingActivities" xlink:label="NetCashProvidedByUsedInInvestingActivities" xlink:title="NetCashProvidedByUsedInInvestingActivities" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromSaleOfAvailableForSaleSecurities" xlink:label="ProceedsFromSaleOfAvailableForSaleSecurities" xlink:title="ProceedsFromSaleOfAvailableForSaleSecurities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="ProceedsFromSaleOfAvailableForSaleSecurities" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to ProceedsFromSaleOfAvailableForSaleSecurities" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromSaleOfLoansReceivable" xlink:label="ProceedsFromSaleOfLoansReceivable" xlink:title="ProceedsFromSaleOfLoansReceivable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="ProceedsFromSaleOfLoansReceivable" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to ProceedsFromSaleOfLoansReceivable" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_LoansHeldForSaleOriginatedForInvestment" xlink:label="LoansHeldForSaleOriginatedForInvestment" xlink:title="LoansHeldForSaleOriginatedForInvestment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="LoansHeldForSaleOriginatedForInvestment" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to LoansHeldForSaleOriginatedForInvestment" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromSaleOfOtherRealEstate" xlink:label="ProceedsFromSaleOfOtherRealEstate" xlink:title="ProceedsFromSaleOfOtherRealEstate" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="ProceedsFromSaleOfOtherRealEstate" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to ProceedsFromSaleOfOtherRealEstate" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:label="ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:title="ProceedsFromSaleOfPropertyPlantAndEquipment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="ProceedsFromSaleOfPropertyPlantAndEquipment" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to ProceedsFromSaleOfPropertyPlantAndEquipment" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities" xlink:label="ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities" xlink:title="ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to ProceedsFromMaturitiesPrepaymentsAndCallsOfAvailableForSaleSecurities" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_ProceedsFromPaydownMaturitiesAndTerminationOfSecuritiesPurchasedUnderResaleAgreements" xlink:label="ProceedsFromPaydownMaturitiesAndTerminationOfSecuritiesPurchasedUnderResaleAgreements" xlink:title="ProceedsFromPaydownMaturitiesAndTerminationOfSecuritiesPurchasedUnderResaleAgreements" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="ProceedsFromPaydownMaturitiesAndTerminationOfSecuritiesPurchasedUnderResaleAgreements" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to ProceedsFromPaydownMaturitiesAndTerminationOfSecuritiesPurchasedUnderResaleAgreements" order="7.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForProceedsFromFederalHomeLoanBankStock" xlink:label="PaymentsForProceedsFromFederalHomeLoanBankStock" xlink:title="PaymentsForProceedsFromFederalHomeLoanBankStock" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="PaymentsForProceedsFromFederalHomeLoanBankStock" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to PaymentsForProceedsFromFederalHomeLoanBankStock" order="8.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_SecuritiesPurchasedUnderResaleAgreements" xlink:label="SecuritiesPurchasedUnderResaleAgreements" xlink:title="SecuritiesPurchasedUnderResaleAgreements" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="SecuritiesPurchasedUnderResaleAgreements" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to SecuritiesPurchasedUnderResaleAgreements" order="9.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireAvailableForSaleSecurities" xlink:label="PaymentsToAcquireAvailableForSaleSecurities" xlink:title="PaymentsToAcquireAvailableForSaleSecurities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="PaymentsToAcquireAvailableForSaleSecurities" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to PaymentsToAcquireAvailableForSaleSecurities" order="10.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireLoansReceivable" xlink:label="PaymentsToAcquireLoansReceivable" xlink:title="PaymentsToAcquireLoansReceivable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="PaymentsToAcquireLoansReceivable" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to PaymentsToAcquireLoansReceivable" order="11.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquireFederalReserveStock" xlink:label="PaymentsToAcquireFederalReserveStock" xlink:title="PaymentsToAcquireFederalReserveStock" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="PaymentsToAcquireFederalReserveStock" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to PaymentsToAcquireFederalReserveStock" order="12.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsToAcquirePropertyPlantAndEquipment" xlink:label="PaymentsToAcquirePropertyPlantAndEquipment" xlink:title="PaymentsToAcquirePropertyPlantAndEquipment" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="PaymentsToAcquirePropertyPlantAndEquipment" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to PaymentsToAcquirePropertyPlantAndEquipment" order="13.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_InvestmentsInAffordableHousingPartnerships" xlink:label="InvestmentsInAffordableHousingPartnerships" xlink:title="InvestmentsInAffordableHousingPartnerships" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="InvestmentsInAffordableHousingPartnerships" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to InvestmentsInAffordableHousingPartnerships" order="14.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_CashAcquiredFromAcquisition" xlink:label="CashAcquiredFromAcquisition" xlink:title="CashAcquiredFromAcquisition" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="CashAcquiredFromAcquisition" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to CashAcquiredFromAcquisition" order="15.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForProceedsFromLoansAndLeases" xlink:label="PaymentsForProceedsFromLoansAndLeases" xlink:title="PaymentsForProceedsFromLoansAndLeases" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="PaymentsForProceedsFromLoansAndLeases" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to PaymentsForProceedsFromLoansAndLeases" order="16.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForProceedsFromShortTermInvestments" xlink:label="PaymentsForProceedsFromShortTermInvestments" xlink:title="PaymentsForProceedsFromShortTermInvestments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="PaymentsForProceedsFromShortTermInvestments" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to PaymentsForProceedsFromShortTermInvestments" order="17.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInFederalFundsSold" xlink:label="IncreaseDecreaseInFederalFundsSold" xlink:title="IncreaseDecreaseInFederalFundsSold" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInInvestingActivities" xlink:to="IncreaseDecreaseInFederalFundsSold" xlink:title="calculation: NetCashProvidedByUsedInInvestingActivities to IncreaseDecreaseInFederalFundsSold" order="18.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="NetCashProvidedByUsedInInvestingActivities" xlink:title="calculation: CashAndCashEquivalentsPeriodIncreaseDecrease to NetCashProvidedByUsedInInvestingActivities" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_NetCashProvidedByUsedInOperatingActivities" xlink:label="NetCashProvidedByUsedInOperatingActivities" xlink:title="NetCashProvidedByUsedInOperatingActivities" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:label="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:title="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DepreciationAmortizationAndAccretionNet" xlink:label="DepreciationAmortizationAndAccretionNet" xlink:title="DepreciationAmortizationAndAccretionNet" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="DepreciationAmortizationAndAccretionNet" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to DepreciationAmortizationAndAccretionNet" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AccretionAmortizationOfDiscountsAndPremiumsInvestments" xlink:label="AccretionAmortizationOfDiscountsAndPremiumsInvestments" xlink:title="AccretionAmortizationOfDiscountsAndPremiumsInvestments" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="AccretionAmortizationOfDiscountsAndPremiumsInvestments" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to AccretionAmortizationOfDiscountsAndPremiumsInvestments" order="2.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_DecreaseInFdicIndemnificationAssetAndReceivable" xlink:label="DecreaseInFdicIndemnificationAssetAndReceivable" xlink:title="DecreaseInFdicIndemnificationAssetAndReceivable" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="DecreaseInFdicIndemnificationAssetAndReceivable" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to DecreaseInFdicIndemnificationAssetAndReceivable" order="3.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_GainOnPurchaseOfBusiness" xlink:label="GainOnPurchaseOfBusiness" xlink:title="GainOnPurchaseOfBusiness" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="GainOnPurchaseOfBusiness" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to GainOnPurchaseOfBusiness" order="4.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ShareBasedCompensation" xlink:label="ShareBasedCompensation" xlink:title="ShareBasedCompensation" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="ShareBasedCompensation" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to ShareBasedCompensation" order="5.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_DeferredIncomeTaxExpenseBenefit" xlink:label="DeferredIncomeTaxExpenseBenefit" xlink:title="DeferredIncomeTaxExpenseBenefit" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="DeferredIncomeTaxExpenseBenefit" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to DeferredIncomeTaxExpenseBenefit" order="6.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProvisionForLoanAndLeaseLosses" xlink:label="ProvisionForLoanAndLeaseLosses" xlink:title="ProvisionForLoanAndLeaseLosses" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="ProvisionForLoanAndLeaseLosses" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to ProvisionForLoanAndLeaseLosses" order="7.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ImpairmentOfRealEstate" xlink:label="ImpairmentOfRealEstate" xlink:title="ImpairmentOfRealEstate" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="ImpairmentOfRealEstate" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to ImpairmentOfRealEstate" order="8.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_NetGainOnSalesOfInvestmentSecuritiesLoansAndOtherAssets" xlink:label="NetGainOnSalesOfInvestmentSecuritiesLoansAndOtherAssets" xlink:title="NetGainOnSalesOfInvestmentSecuritiesLoansAndOtherAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="NetGainOnSalesOfInvestmentSecuritiesLoansAndOtherAssets" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to NetGainOnSalesOfInvestmentSecuritiesLoansAndOtherAssets" order="9.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_PaymentsForOriginationAndPurchasesOfLoansHeldForSale" xlink:label="PaymentsForOriginationAndPurchasesOfLoansHeldForSale" xlink:title="PaymentsForOriginationAndPurchasesOfLoansHeldForSale" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="PaymentsForOriginationAndPurchasesOfLoansHeldForSale" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to PaymentsForOriginationAndPurchasesOfLoansHeldForSale" order="10.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_ProceedsFromSalesOfLoansOriginatedAsLoansHeldForSale" xlink:label="ProceedsFromSalesOfLoansOriginatedAsLoansHeldForSale" xlink:title="ProceedsFromSalesOfLoansOriginatedAsLoansHeldForSale" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="ProceedsFromSalesOfLoansOriginatedAsLoansHeldForSale" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to ProceedsFromSalesOfLoansOriginatedAsLoansHeldForSale" order="11.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_PrepaymentPenaltyForFhlbAdvancesAndOtherBorrowings" xlink:label="PrepaymentPenaltyForFhlbAdvancesAndOtherBorrowings" xlink:title="PrepaymentPenaltyForFhlbAdvancesAndOtherBorrowings" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="PrepaymentPenaltyForFhlbAdvancesAndOtherBorrowings" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to PrepaymentPenaltyForFhlbAdvancesAndOtherBorrowings" order="12.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_NetProceedsFromFdicSharedLossAgreements" xlink:label="NetProceedsFromFdicSharedLossAgreements" xlink:title="NetProceedsFromFdicSharedLossAgreements" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="NetProceedsFromFdicSharedLossAgreements" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to NetProceedsFromFdicSharedLossAgreements" order="13.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_NetChangeInAccruedInterestReceivableAndOtherAssets" xlink:label="NetChangeInAccruedInterestReceivableAndOtherAssets" xlink:title="NetChangeInAccruedInterestReceivableAndOtherAssets" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="NetChangeInAccruedInterestReceivableAndOtherAssets" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to NetChangeInAccruedInterestReceivableAndOtherAssets" order="14.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:label="IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:title="IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to IncreaseDecreaseInAccountsPayableAndAccruedLiabilities" order="15.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_OtherNoncashIncomeExpense" xlink:label="OtherNoncashIncomeExpense" xlink:title="OtherNoncashIncomeExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:to="OtherNoncashIncomeExpense" xlink:title="calculation: AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities to OtherNoncashIncomeExpense" order="16.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to AdjustmentsToReconcileNetIncomeLossToCashProvidedByUsedInOperatingActivities" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_ProfitLoss" xlink:label="ProfitLoss" xlink:title="ProfitLoss" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="NetCashProvidedByUsedInOperatingActivities" xlink:to="ProfitLoss" xlink:title="calculation: NetCashProvidedByUsedInOperatingActivities to ProfitLoss" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="CashAndCashEquivalentsPeriodIncreaseDecrease" xlink:to="NetCashProvidedByUsedInOperatingActivities" xlink:title="calculation: CashAndCashEquivalentsPeriodIncreaseDecrease to NetCashProvidedByUsedInOperatingActivities" order="4.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/BasisOfPresentation" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/BasisOfPresentationDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/SignificantAccountingPolicies" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/SignificantAccountingPoliciesPolicies" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/FairValue" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/FairValueDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/FairValueReconciliationForMajorAssetAndLiabilityDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/FairValueCarryingAmountsAndFairValuesOfFinancialInstrumentsDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/FairValueValuationMethodologiesDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/FairValueTables" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/StockBasedCompensation" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/StockBasedCompensationDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/StockBasedCompensationTables" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/InvestmentSecurities" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/InvestmentSecuritiesDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/InvestmentSecuritiesAvailableForSalePortfolioDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecurities" xlink:label="AvailableForSaleSecurities" xlink:title="AvailableForSaleSecurities" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesAmortizedCost" xlink:label="AvailableForSaleSecuritiesAmortizedCost" xlink:title="AvailableForSaleSecuritiesAmortizedCost" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AvailableForSaleSecurities" xlink:to="AvailableForSaleSecuritiesAmortizedCost" xlink:title="calculation: AvailableForSaleSecurities to AvailableForSaleSecuritiesAmortizedCost" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableforsaleSecuritiesGrossUnrealizedGain" xlink:label="AvailableforsaleSecuritiesGrossUnrealizedGain" xlink:title="AvailableforsaleSecuritiesGrossUnrealizedGain" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AvailableForSaleSecurities" xlink:to="AvailableforsaleSecuritiesGrossUnrealizedGain" xlink:title="calculation: AvailableForSaleSecurities to AvailableforsaleSecuritiesGrossUnrealizedGain" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_AvailableForSaleSecuritiesGrossUnrealizedLosses1" xlink:label="AvailableForSaleSecuritiesGrossUnrealizedLosses1" xlink:title="AvailableForSaleSecuritiesGrossUnrealizedLosses1" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="AvailableForSaleSecurities" xlink:to="AvailableForSaleSecuritiesGrossUnrealizedLosses1" xlink:title="calculation: AvailableForSaleSecurities to AvailableForSaleSecuritiesGrossUnrealizedLosses1" order="3.0" weight="-1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/InvestmentSecuritiesRollforwardRelatedToOttiCreditLossesDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/InvestmentSecuritiesInvestmentPortfolioDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/InvestmentSecuritiesUnrealizedLossesAndCorporateDebtSecuritiesDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/InvestmentSecuritiesTables" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/DerivativeFinancialInstruments" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/DerivativeFinancialInstrumentsDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/DerivativeFinancialInstrumentsFairValuesOfDerivativeInstrumentsDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/DerivativeFinancialInstrumentsNarrativeDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/DerivativeFinancialInstrumentsGainsLossesOnDerivativeInstrumentsDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/DerivativeFinancialInstrumentsTables" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/CoveredAssetsAndFdicIndemnificationAsset" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/CoveredAssetsAndFdicIndemnificationAssetDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/CoveredAssetsAndFdicIndemnificationAssetCoveredAssetsAndCreditQualityIndicatorsDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/CoveredAssetsAndFdicIndemnificationAssetFdicIndemnificationAssetAndFdicReceivableDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/CoveredAssetsAndFdicIndemnificationAssetTables" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLosses" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesCreditQualityIndicatorDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesNonaccrualLoansDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesTroubledDebtRestructuringsDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesImpairedNonCoveredLoansDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesAllowanceForLoanLossesDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesImpairmentMethodologyDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesOffBalanceSheetDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/NonCoveredLoansAndAllowanceForLoanLossesTables" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/PremisesAndEquipment" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/PremisesAndEquipmentDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/GoodwillAndOtherIntangibleAssets" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/GoodwillAndOtherIntangibleAssetsDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/GoodwillAndOtherIntangibleAssetsTables" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/CommitmentsAndContingencies" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/CommitmentsAndContingenciesDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/StockholdersEquity" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/StockholdersEquityDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/StockholdersEquityEarningsLossPerShareCalculationsDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_WeightedAverageNumberOfDilutedSharesOutstanding" xlink:label="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:title="WeightedAverageNumberOfDilutedSharesOutstanding" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_WeightedAverageNumberOfSharesOutstandingBasic" xlink:label="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="WeightedAverageNumberOfSharesOutstandingBasic" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="WeightedAverageNumberOfSharesOutstandingBasic" xlink:title="calculation: WeightedAverageNumberOfDilutedSharesOutstanding to WeightedAverageNumberOfSharesOutstandingBasic" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions" xlink:label="IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions" xlink:title="IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions" xlink:title="calculation: WeightedAverageNumberOfDilutedSharesOutstanding to IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsStockOptions" order="2.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsRestrictedStock" xlink:label="IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsRestrictedStock" xlink:title="IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsRestrictedStock" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsRestrictedStock" xlink:title="calculation: WeightedAverageNumberOfDilutedSharesOutstanding to IncrementalCommonSharesAttributableToShareBasedPaymentArrangementsRestrictedStock" order="3.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToConversionOfPreferredStock" xlink:label="IncrementalCommonSharesAttributableToConversionOfPreferredStock" xlink:title="IncrementalCommonSharesAttributableToConversionOfPreferredStock" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="IncrementalCommonSharesAttributableToConversionOfPreferredStock" xlink:title="calculation: WeightedAverageNumberOfDilutedSharesOutstanding to IncrementalCommonSharesAttributableToConversionOfPreferredStock" order="4.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:label="IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:title="IncrementalCommonSharesAttributableToCallOptionsAndWarrants" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="WeightedAverageNumberOfDilutedSharesOutstanding" xlink:to="IncrementalCommonSharesAttributableToCallOptionsAndWarrants" xlink:title="calculation: WeightedAverageNumberOfDilutedSharesOutstanding to IncrementalCommonSharesAttributableToCallOptionsAndWarrants" order="5.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/StockholdersEquitySharesExcludedFromCalculationOfDilutedEpsDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/StockholdersEquityTables" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/BusinessSegments" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/BusinessSegmentsDetails">
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestIncomeExpenseNet" xlink:label="InterestIncomeExpenseNet" xlink:title="InterestIncomeExpenseNet" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_InterestSpreadOnFundsProvided" xlink:label="InterestSpreadOnFundsProvided" xlink:title="InterestSpreadOnFundsProvided" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestExpense" xlink:label="InterestExpense" xlink:title="InterestExpense" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestSpreadOnFundsProvided" xlink:to="InterestExpense" xlink:title="calculation: InterestSpreadOnFundsProvided to InterestExpense" order="1.0" weight="-1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_CreditOnFundsProvided" xlink:label="CreditOnFundsProvided" xlink:title="CreditOnFundsProvided" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestSpreadOnFundsProvided" xlink:to="CreditOnFundsProvided" xlink:title="calculation: InterestSpreadOnFundsProvided to CreditOnFundsProvided" order="2.0" weight="1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestIncomeExpenseNet" xlink:to="InterestSpreadOnFundsProvided" xlink:title="calculation: InterestIncomeExpenseNet to InterestSpreadOnFundsProvided" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_InterestSpreadOnFundsUsed" xlink:label="InterestSpreadOnFundsUsed" xlink:title="InterestSpreadOnFundsUsed" />
    <link:loc xlink:type="locator" xlink:href="http://xbrl.fasb.org/us-gaap/2011/elts/us-gaap-2011-01-31.xsd#us-gaap_InterestAndDividendIncomeOperating" xlink:label="InterestAndDividendIncomeOperating" xlink:title="InterestAndDividendIncomeOperating" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestSpreadOnFundsUsed" xlink:to="InterestAndDividendIncomeOperating" xlink:title="calculation: InterestSpreadOnFundsUsed to InterestAndDividendIncomeOperating" order="1.0" weight="1.0" />
    <link:loc xlink:type="locator" xlink:href="ewbc-20110930.xsd#ewbc_ChargeForFundsUsed" xlink:label="ChargeForFundsUsed" xlink:title="ChargeForFundsUsed" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestSpreadOnFundsUsed" xlink:to="ChargeForFundsUsed" xlink:title="calculation: InterestSpreadOnFundsUsed to ChargeForFundsUsed" order="2.0" weight="-1.0" />
    <link:calculationArc xlink:type="arc" xlink:arcrole="http://www.xbrl.org/2003/arcrole/summation-item" xlink:from="InterestIncomeExpenseNet" xlink:to="InterestSpreadOnFundsUsed" xlink:title="calculation: InterestIncomeExpenseNet to InterestSpreadOnFundsUsed" order="2.0" weight="1.0" />
  </link:calculationLink>
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/BusinessSegmentsTables" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/SubsequentEvents" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/SubsequentEventsDetails" />
  <link:calculationLink xlink:type="extended" xlink:role="http://eastwestbank.com/role/DocumentAndEntityInformation" />
</link:linkbase>
