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        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>BMO Capital Markets Corp.</principalName>
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          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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          <principalTransaction>
            <principalName>BNY Mellon Capital Markets, LLC</principalName>
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          <principalTransaction>
            <principalName>Deutsche Bank Securities Inc.</principalName>
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          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
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            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
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          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
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            <principalStateCountry principalState="US-NC" principalCountry="US"/>
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          <principalTransaction>
            <principalName>Nomura Securities International, Inc.</principalName>
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          <principalTransaction>
            <principalName>Loop Capital Markets LLC</principalName>
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          <principalTransaction>
            <principalName>Kleinwort Benson North America Inc.</principalName>
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            <principalStateCountry principalState="US-NY" principalCountry="US"/>
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        <principalAggregatePurchase>1100788890.75000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>660128796.59461538</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares 1-5 Year Investment Grade Corporate Bond ETF</mgmtInvFundName>
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        <mgmtInvLei>549300T14S5IX7V5T008</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
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        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
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        <fundTypes>
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            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.04000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>0.04000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.11000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.11000000</indexFundReturnDailyStdevAfterExpense>
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        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
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          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
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        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
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            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
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                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
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              <didIndemnificationRights>N</didIndemnificationRights>
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        <collateralManagers>
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        <paymentToAgentManagers>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
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        <avgPortfolioSecuritiesValue>1290147573.95000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>5854331.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
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        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
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        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
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        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
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          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
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          <pricingService>
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          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
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            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
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            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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        <fundLendSecurities didFundLendSecurities="Y">
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        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>88300000.13000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>707610.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>Wells Fargo Securities, LLC</custodianName>
            <custodianLei>VYVVCKR63DVZZN70PB21</custodianLei>
            <custodianStateCountry custodianState="US-NC" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1796384345.19000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>1566620000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BMO Capital Markets Corp.</principalName>
            <principalFileNo>8-34344</principalFileNo>
            <principalCrdNo>000016686</principalCrdNo>
            <principalLei>RUC0QBLBRPRCU4W1NE59</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1235162829.28000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3777132326.91000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Deutsche Bank Securities Inc.</principalName>
            <principalFileNo>8-17822</principalFileNo>
            <principalCrdNo>000002525</principalCrdNo>
            <principalLei>9J6MBOOO7BECTDTUZW19</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>232421361.33000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Kleinwort Benson North America Inc.</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>N/A</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>655173909.33000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>2503435727.45000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citadel Securities LLC</principalName>
            <principalFileNo>8-53574</principalFileNo>
            <principalCrdNo>000116797</principalCrdNo>
            <principalLei>12UUJYTN7D3SW8KCSG25</principalLei>
            <principalStateCountry principalState="US-FL" principalCountry="US"/>
            <principalTotalPurchaseSale>398706107.56000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>380787213.75000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNP Paribas Securities Corp.</principalName>
            <principalFileNo>8-32682</principalFileNo>
            <principalCrdNo>000015794</principalCrdNo>
            <principalLei>RCNB6OTYUAMMP879YW96</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>181773812.41000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>13099343515.45000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>7697308138.29692307</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Intermediate Government/Credit Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000013700</mgmtInvSeriesId>
        <mgmtInvLei>549300USOBX01WS0GK74</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares Intermediate Government/Credit Bond ETF" sharesOutstandingClassId="C000037542" sharesOutstandingTickerSymbol="GVI"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.18000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.18000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.17000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.17000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>22800926.74000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>168973.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Kleinwort Benson North America Inc.</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>N/A</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>146276017.49000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>657478645.94000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNP Paribas Securities Corp.</principalName>
            <principalFileNo>8-32682</principalFileNo>
            <principalCrdNo>000015794</principalCrdNo>
            <principalLei>RCNB6OTYUAMMP879YW96</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>60269130.09000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>618903616.87000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
            <principalFileNo>8-45411</principalFileNo>
            <principalCrdNo>000031194</principalCrdNo>
            <principalLei>549300LCO2FLSSVFFR64</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>132371407.46000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>468668000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BMO Capital Markets Corp.</principalName>
            <principalFileNo>8-34344</principalFileNo>
            <principalCrdNo>000016686</principalCrdNo>
            <principalLei>RUC0QBLBRPRCU4W1NE59</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>155543156.88000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>60135515.91000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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            <principalCrdNo>000283942</principalCrdNo>
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          <principalTransaction>
            <principalName>Jane Street Capital, LLC</principalName>
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        <principalAggregatePurchase>3370790451.16000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>2971818408.34846153</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares BBB Rated Corporate Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000071770</mgmtInvSeriesId>
        <mgmtInvLei>549300LLQ2RTRMS0KN04</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
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        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares BBB Rated Corporate Bond ETF" sharesOutstandingClassId="C000227271" sharesOutstandingTickerSymbol="LQDB"/>
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        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.21000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.21000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.18000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.18000000</indexFundReturnDailyStdevAfterExpense>
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        </fundTypes>
        <isNonDiversifiedCompany>Y</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
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        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
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            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
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              <didIndemnificationRights>N</didIndemnificationRights>
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        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
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        <paymentToAgentManagers>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>1542250.42000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>7061.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
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        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
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            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
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        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
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            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
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          </transferAgent>
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        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
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            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
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          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
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            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
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          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
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            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
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          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
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        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
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            <isCustodianAffiliated>N</isCustodianAffiliated>
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            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
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        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
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        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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          <principalTransaction>
            <principalName>MarketAxess Corporation</principalName>
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          <principalTransaction>
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          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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          <principalTransaction>
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      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Short-Term National Muni Bond ETF</mgmtInvFundName>
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        <sharesOutstandings>
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        <didFundLendSecurities>N</didFundLendSecurities>
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          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
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          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
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        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
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          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
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          <pricingService>
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          <pricingService>
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        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
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            <adminName>State Street Bank and Trust Company</adminName>
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        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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        <aggregateCommission>0.00000000</aggregateCommission>
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          <principalTransaction>
            <principalName>BlackRock Liquidity Funds - MuniCash</principalName>
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          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
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          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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          <principalTransaction>
            <principalName>National Financial Services LLC</principalName>
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            <principalTotalPurchaseSale>92547223.50000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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            <principalTotalPurchaseSale>2101028583.45000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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          <principalTransaction>
            <principalName>Truist Securities, Inc.</principalName>
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          <principalTransaction>
            <principalName>Jefferies LLC</principalName>
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          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
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        <principalAggregatePurchase>7959419784.89000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>9455553290.94153846</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares 1-3 Year Treasury Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000004357</mgmtInvSeriesId>
        <mgmtInvLei>549300W0WX9TL4G6HM56</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
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        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares 1-3 Year Treasury Bond ETF" sharesOutstandingClassId="C000012087" sharesOutstandingTickerSymbol="SHY"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.14000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.14000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.08000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.08000000</indexFundReturnDailyStdevAfterExpense>
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        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
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          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>121389594.73000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>228020.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
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            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>SG Americas Securities, LLC</custodianName>
            <custodianLei>549300F35UE0BOM1WJ55</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
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        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
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        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>BMO Capital Markets Corp.</principalName>
            <principalFileNo>8-34344</principalFileNo>
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            <principalLei>RUC0QBLBRPRCU4W1NE59</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3919697794.89000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Citadel Securities LLC</principalName>
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            <principalCrdNo>000116797</principalCrdNo>
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            <principalStateCountry principalState="US-FL" principalCountry="US"/>
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          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
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            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
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          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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            <principalTotalPurchaseSale>16149581329.26000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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          <principalTransaction>
            <principalName>Deutsche Bank Securities Inc.</principalName>
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          <principalTransaction>
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            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
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          <principalTransaction>
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          <principalTransaction>
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            <principalLei>RCNB6OTYUAMMP879YW96</principalLei>
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            <principalTotalPurchaseSale>2673752391.90000000</principalTotalPurchaseSale>
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          <principalTransaction>
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        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>26593401879.98923076</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares 20+ Year Treasury Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000004360</mgmtInvSeriesId>
        <mgmtInvLei>549300WWURKS1JGBZU59</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
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        <fundTypes>
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          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>9.58000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>9.58000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.68000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.68000000</indexFundReturnDailyStdevAfterExpense>
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        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
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        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
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                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
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              <didIndemnificationRights>N</didIndemnificationRights>
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        <collateralManagers>
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        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>439053.16000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>13948.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
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          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
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        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
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            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
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        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
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          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
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          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
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          <pricingService>
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            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
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        </pricingServices>
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        <custodians>
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      <managementInvestmentQuestion>
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          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
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          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>2351142560.03000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>8998744.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>Wells Fargo Securities, LLC</custodianName>
            <custodianLei>VYVVCKR63DVZZN70PB21</custodianLei>
            <custodianStateCountry custodianState="US-NC" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1531108213.60000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1641967633.66000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>National Securities Clearing Corporation</principalName>
            <principalFileNo>8-164</principalFileNo>
            <principalCrdNo>000007569</principalCrdNo>
            <principalLei>549300RYC9NELN2ICA34</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>122590293265.13000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1076561000.78000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>8332724000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNY Mellon Capital Markets, LLC</principalName>
            <principalFileNo>8-35255</principalFileNo>
            <principalCrdNo>000017454</principalCrdNo>
            <principalLei>VJW2DOOHGDT6PR0ZRO63</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>575124453.95000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1020757987.39000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
            <principalFileNo>8-65876</principalFileNo>
            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>707434594.75000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1713115016.53000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>679895065.67000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>142201006657.79000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>33248400505.65384615</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares California Muni Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000019341</mgmtInvSeriesId>
        <mgmtInvLei>5493005PBQ3IFT3REX09</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares California Muni Bond ETF" sharesOutstandingClassId="C000053739" sharesOutstandingTickerSymbol="CMF"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.19000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.04000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.12000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.12000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>Y</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>655885078.50000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>37491662.70000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Liquidity Funds - MuniCash</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>549300RWBJ885673DL84</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>20882849.05000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>419267364.25000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>449645302.35000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jefferies LLC</principalName>
            <principalFileNo>8-15074</principalFileNo>
            <principalCrdNo>000002347</principalCrdNo>
            <principalLei>58PU97L1C0WSRCWADL48</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>64557068.20000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>104934514.40000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
            <principalFileNo>8-65876</principalFileNo>
            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>78313295.75000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Liquidity Funds - California Money Fund</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>549300E5GIHTAGOVRB65</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>416708339.58000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Truist Securities, Inc.</principalName>
            <principalFileNo>8-17212</principalFileNo>
            <principalCrdNo>000006271</principalCrdNo>
            <principalLei>CSVTK36R0PNGXEM7NS14</principalLei>
            <principalStateCountry principalState="US-GA" principalCountry="US"/>
            <principalTotalPurchaseSale>45347427.20000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>2359355631.89000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>2337880845.82692307</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Core 5-10 Year USD Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000055401</mgmtInvSeriesId>
        <mgmtInvLei>549300E5GUSCE00FIQ17</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares Core 5-10 Year USD Bond ETF" sharesOutstandingClassId="C000174365" sharesOutstandingTickerSymbol="IMTB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.01000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>0.01000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.29000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.29000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>1753206.18000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>24567.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(e) (17 CFR 270.18f-4(e))</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>J.P. Morgan Securities LLC</custodianName>
            <custodianLei>ZBUT11V806EZRVTWT807</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>231351875.42000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Nomura Securities International, Inc.</principalName>
            <principalFileNo>8-15255</principalFileNo>
            <principalCrdNo>000004297</principalCrdNo>
            <principalLei>OXTKY6Q8X53C9ILVV871</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>31973595.02000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>209659416.28000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>147883852.39000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Mizuho Securities USA LLC</principalName>
            <principalFileNo>8-37710</principalFileNo>
            <principalCrdNo>000019647</principalCrdNo>
            <principalLei>7TK5RJIZDFROZCA6XF66</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>22031486.45000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
            <principalFileNo>8-65876</principalFileNo>
            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>63175617.12000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>47270693.26000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>157966024.12000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>66881641.15000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Institutional</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>549300JDHS1T46VWOG19</principalLei>
            <principalStateCountry principalState="US-CA" principalCountry="US"/>
            <principalTotalPurchaseSale>92789049.83000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>1119601521.66000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>172875000.19846153</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares ESG Advanced Total USD Bond Market ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000068817</mgmtInvSeriesId>
        <mgmtInvLei>5493003MW3304SOSOX56</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares ESG Advanced Total USD Bond Market ETF" sharesOutstandingClassId="C000219898" sharesOutstandingTickerSymbol="EUSB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.11000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.11000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.22000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.22000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>6369198.05000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>73143.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(e) (17 CFR 270.18f-4(e))</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
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        <brokerDealers>
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          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
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          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
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        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>54888.79000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>607.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>SG Americas Securities, LLC</custodianName>
            <custodianLei>549300F35UE0BOM1WJ55</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>11582321.80000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3050731.55000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>19116748.18000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>18238695.27000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Mizuho Securities USA LLC</principalName>
            <principalFileNo>8-37710</principalFileNo>
            <principalCrdNo>000019647</principalCrdNo>
            <principalLei>7TK5RJIZDFROZCA6XF66</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1497200.57000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Institutional</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>549300JDHS1T46VWOG19</principalLei>
            <principalStateCountry principalState="US-CA" principalCountry="US"/>
            <principalTotalPurchaseSale>8308813.05000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
            <principalFileNo>8-65876</principalFileNo>
            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>7106171.69000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>7316204.82000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>13462208.41000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNP Paribas Securities Corp.</principalName>
            <principalFileNo>8-32682</principalFileNo>
            <principalCrdNo>000015794</principalCrdNo>
            <principalLei>RCNB6OTYUAMMP879YW96</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1640821.31000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>97784945.53000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>12528904.46384615</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares 10+ Year Investment Grade Corporate Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000026651</mgmtInvSeriesId>
        <mgmtInvLei>5493002XJCHL78PKW767</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares 10+ Year Investment Grade Corporate Bond ETF" sharesOutstandingClassId="C000080009" sharesOutstandingTickerSymbol="IGLB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.04000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.04000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.49000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.49000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>167409384.93000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>734398.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Wells Fargo Securities, LLC</custodianName>
            <custodianLei>VYVVCKR63DVZZN70PB21</custodianLei>
            <custodianStateCountry custodianState="US-NC" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Kleinwort Benson North America Inc.</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>N/A</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>15401120.80000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNY Mellon Capital Markets, LLC</principalName>
            <principalFileNo>8-35255</principalFileNo>
            <principalCrdNo>000017454</principalCrdNo>
            <principalLei>VJW2DOOHGDT6PR0ZRO63</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>22784037.80000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>41424486.16000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>18697401.30000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNP Paribas Securities Corp.</principalName>
            <principalFileNo>8-32682</principalFileNo>
            <principalCrdNo>000015794</principalCrdNo>
            <principalLei>RCNB6OTYUAMMP879YW96</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>11563206.73000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>31124115.70000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>26988197.07000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>National Securities Clearing Corporation</principalName>
            <principalFileNo>8-164</principalFileNo>
            <principalCrdNo>000007569</principalCrdNo>
            <principalLei>549300RYC9NELN2ICA34</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3105735381.40000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>380170000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>38759592.67000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>3774013586.63000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>1890448676.84076923</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares High Yield Systematic Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000057341</mgmtInvSeriesId>
        <mgmtInvLei>54930005IQ49IXN46616</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares High Yield Systematic Bond ETF" sharesOutstandingClassId="C000182992" sharesOutstandingTickerSymbol="HYDB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>Y</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.72000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.72000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.19000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.19000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>43782676.64000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>327417.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>BofA Securities, Inc.</custodianName>
            <custodianLei>549300HN4UKV1E2R3U73</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Skandinaviska Enskilda Banken AB (Oslo, Oslo, NO, Branch)</custodianName>
            <custodianLei>F3JS33DEI6XQ4ZBPTN86</custodianLei>
            <custodianCountry>NO</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>Y</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>31609275.18000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNY Mellon Capital Markets, LLC</principalName>
            <principalFileNo>8-35255</principalFileNo>
            <principalCrdNo>000017454</principalCrdNo>
            <principalLei>VJW2DOOHGDT6PR0ZRO63</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>23393917.12000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>54347118.27000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>National Securities Clearing Corporation</principalName>
            <principalFileNo>8-164</principalFileNo>
            <principalCrdNo>000007569</principalCrdNo>
            <principalLei>549300RYC9NELN2ICA34</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>271439047.81000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>51913530.89000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>343230000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Kleinwort Benson North America Inc.</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>N/A</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>133420698.04000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>55189014.23000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Jefferies LLC</principalName>
            <principalFileNo>8-15074</principalFileNo>
            <principalCrdNo>000002347</principalCrdNo>
            <principalLei>58PU97L1C0WSRCWADL48</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>35920826.35000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>51872924.88000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>1154793409.58000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>258672852.42153846</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares 3-7 Year Treasury Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000013695</mgmtInvSeriesId>
        <mgmtInvLei>549300BUGBHWMFPSNL42</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares 3-7 Year Treasury Bond ETF" sharesOutstandingClassId="C000037537" sharesOutstandingTickerSymbol="IEI"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.10000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.10000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.18000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.18000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>29934260.01000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>48869.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>SG Americas Securities, LLC</custodianName>
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          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
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            <isCustodianAffiliated>N</isCustodianAffiliated>
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            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
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          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
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            <isAdminSubAdmin>N</isAdminSubAdmin>
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        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <principalName>Deutsche Bank Securities Inc.</principalName>
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          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
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          <principalTransaction>
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          <principalTransaction>
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          <principalTransaction>
            <principalName>Citadel Securities LLC</principalName>
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          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
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          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
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        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Broad USD Investment Grade Corporate Bond ETF</mgmtInvFundName>
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        <mgmtInvLei>5493004QFMCNV0WLX398</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
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        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
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        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
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            <indexFundReturnDiffAfterExpense>0.01000000</indexFundReturnDiffAfterExpense>
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            <indexFundReturnDailyStdevAfterExpense>0.26000000</indexFundReturnDailyStdevAfterExpense>
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        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
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          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
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        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
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            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
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                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
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              <didIndemnificationRights>N</didIndemnificationRights>
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          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
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          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
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        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
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        <pricingServices>
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            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
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          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
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            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
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          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
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          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
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            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
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        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
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            <adminName>State Street Bank and Trust Company</adminName>
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        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
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        <fundLendSecurities didFundLendSecurities="Y">
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            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>68250194.19000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>404219.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>BofA Securities, Inc.</custodianName>
            <custodianLei>549300HN4UKV1E2R3U73</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>260680000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>42179909.31000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>36821468.81000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Deutsche Bank Securities Inc.</principalName>
            <principalFileNo>8-17822</principalFileNo>
            <principalCrdNo>000002525</principalCrdNo>
            <principalLei>9J6MBOOO7BECTDTUZW19</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>12692366.16000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>62122324.06000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>15750271.74000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>44163865.82000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>National Securities Clearing Corporation</principalName>
            <principalFileNo>8-164</principalFileNo>
            <principalCrdNo>000007569</principalCrdNo>
            <principalLei>549300RYC9NELN2ICA34</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>730287340.67000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNY Mellon Capital Markets, LLC</principalName>
            <principalFileNo>8-35255</principalFileNo>
            <principalCrdNo>000017454</principalCrdNo>
            <principalLei>VJW2DOOHGDT6PR0ZRO63</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>34042087.05000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>70533483.93000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>1403158078.16000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>1066970903.52769230</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Investment Grade Systematic Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000057342</mgmtInvSeriesId>
        <mgmtInvLei>549300QBLHV9U0KL0M22</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares Investment Grade Systematic Bond ETF" sharesOutstandingClassId="C000182993" sharesOutstandingTickerSymbol="IGEB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>Y</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.19000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.19000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.09000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.09000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>18600916.37000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>60961.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>BofA Securities, Inc.</custodianName>
            <custodianLei>549300HN4UKV1E2R3U73</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>National Securities Clearing Corporation</principalName>
            <principalFileNo>8-164</principalFileNo>
            <principalCrdNo>000007569</principalCrdNo>
            <principalLei>549300RYC9NELN2ICA34</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>331489547.00000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>61753000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNY Mellon Capital Markets, LLC</principalName>
            <principalFileNo>8-35255</principalFileNo>
            <principalCrdNo>000017454</principalCrdNo>
            <principalLei>VJW2DOOHGDT6PR0ZRO63</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>36785799.95000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>43420838.70000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>42876172.08000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Deutsche Bank Securities Inc.</principalName>
            <principalFileNo>8-17822</principalFileNo>
            <principalCrdNo>000002525</principalCrdNo>
            <principalLei>9J6MBOOO7BECTDTUZW19</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>12811718.45000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>122346406.08000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNP Paribas Securities Corp.</principalName>
            <principalFileNo>8-32682</principalFileNo>
            <principalCrdNo>000015794</principalCrdNo>
            <principalLei>RCNB6OTYUAMMP879YW96</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>27312860.16000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>75870420.82000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>53310944.04000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>879655554.77000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>313120522.68692307</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares National Muni Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000018861</mgmtInvSeriesId>
        <mgmtInvLei>549300H21FUYFQW9N157</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares National Muni Bond ETF" sharesOutstandingClassId="C000052220" sharesOutstandingTickerSymbol="MUB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.02000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.02000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.10000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.10000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3468525622.70000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Truist Securities, Inc.</principalName>
            <principalFileNo>8-17212</principalFileNo>
            <principalCrdNo>000006271</principalCrdNo>
            <principalLei>CSVTK36R0PNGXEM7NS14</principalLei>
            <principalStateCountry principalState="US-GA" principalCountry="US"/>
            <principalTotalPurchaseSale>358644254.60000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>National Financial Services LLC</principalName>
            <principalFileNo>8-26740</principalFileNo>
            <principalCrdNo>000013041</principalCrdNo>
            <principalLei>549300JRHF1MHHWUAW04</principalLei>
            <principalStateCountry principalState="US-MA" principalCountry="US"/>
            <principalTotalPurchaseSale>314947880.50000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>1287809403.25000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Liquidity Funds - MuniCash</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>549300RWBJ885673DL84</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>5006995866.44000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>8567989499.70000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
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            <principalTotalPurchaseSale>4719359190.30000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>199702579.30000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Jefferies LLC</principalName>
            <principalFileNo>8-15074</principalFileNo>
            <principalCrdNo>000002347</principalCrdNo>
            <principalLei>58PU97L1C0WSRCWADL48</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>2282418289.35000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
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            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>1139189705.70000000</principalTotalPurchaseSale>
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        <principalAggregatePurchase>27573251990.34000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>34202111279.81615384</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares MBS ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000013702</mgmtInvSeriesId>
        <mgmtInvLei>549300M0TH0IE2E6RP07</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares MBS ETF" sharesOutstandingClassId="C000037544" sharesOutstandingTickerSymbol="MBB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.05000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.05000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.39000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.39000000</indexFundReturnDailyStdevAfterExpense>
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        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
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        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>N/A</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>Y</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>Y</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
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            <principalTotalPurchaseSale>8235768639.72000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
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          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Institutional</principalName>
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            <principalLei>549300JDHS1T46VWOG19</principalLei>
            <principalStateCountry principalState="US-CA" principalCountry="US"/>
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          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>25857947528.57000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>21975626788.42000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Mizuho Securities USA LLC</principalName>
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            <principalCrdNo>000019647</principalCrdNo>
            <principalLei>7TK5RJIZDFROZCA6XF66</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3089847703.04000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Nomura Securities International, Inc.</principalName>
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            <principalLei>OXTKY6Q8X53C9ILVV871</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>2693736180.76000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>15978080382.73000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>18571111002.32000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>5246300249.69000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>125638345450.64000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>26966798476.63769230</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares ESG Aware 1-5 Year USD Corporate Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000058036</mgmtInvSeriesId>
        <mgmtInvLei>549300A3SLEQ53E2BD05</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares ESG Aware 1-5 Year USD Corporate Bond ETF" sharesOutstandingClassId="C000189864" sharesOutstandingTickerSymbol="SUSB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.13000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.13000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.14000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.14000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>30575179.38000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>159855.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>BofA Securities, Inc.</custodianName>
            <custodianLei>549300HN4UKV1E2R3U73</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>61930496.05000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>16640322.74000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
            <principalFileNo>8-45411</principalFileNo>
            <principalCrdNo>000031194</principalCrdNo>
            <principalLei>549300LCO2FLSSVFFR64</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>16835896.36000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>National Securities Clearing Corporation</principalName>
            <principalFileNo>8-164</principalFileNo>
            <principalCrdNo>000007569</principalCrdNo>
            <principalLei>549300RYC9NELN2ICA34</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>147867453.66000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNY Mellon Capital Markets, LLC</principalName>
            <principalFileNo>8-35255</principalFileNo>
            <principalCrdNo>000017454</principalCrdNo>
            <principalLei>VJW2DOOHGDT6PR0ZRO63</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>74920187.67000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>65657484.48000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>200650000.00000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>113152693.11000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>60562374.58000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
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        <principalAggregatePurchase>884561685.19000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>876098221.09076923</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Government/Credit Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000013701</mgmtInvSeriesId>
        <mgmtInvLei>5493005N2TW2082UOF16</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares Government/Credit Bond ETF" sharesOutstandingClassId="C000037543" sharesOutstandingTickerSymbol="GBF"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.21000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.21000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.26000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.26000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>3014283.11000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>26564.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
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          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
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            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
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            <pricingServiceCountry>GB</pricingServiceCountry>
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          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
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            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
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        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>J.P. Morgan Securities LLC</custodianName>
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            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
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        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
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            <adminName>State Street Bank and Trust Company</adminName>
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            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
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          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <principalName>Kleinwort Benson North America Inc.</principalName>
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          <principalTransaction>
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          <principalTransaction>
            <principalName>Citadel Securities LLC</principalName>
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          <principalTransaction>
            <principalName>BNP Paribas Securities Corp.</principalName>
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          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
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          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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          <principalTransaction>
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      <managementInvestmentQuestion>
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        <numTerminatedClass>0</numTerminatedClass>
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        <fundLendSecurities didFundLendSecurities="Y">
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            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
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          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
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          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
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          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
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        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
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            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
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          <pricingService>
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            <indexFundReturnDailyStdevAfterExpense>0.24000000</indexFundReturnDailyStdevAfterExpense>
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        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>1324864427.01000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>5874822.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>Wells Fargo Securities, LLC</custodianName>
            <custodianLei>VYVVCKR63DVZZN70PB21</custodianLei>
            <custodianStateCountry custodianState="US-NC" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>551821733.27000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNY Mellon Capital Markets, LLC</principalName>
            <principalFileNo>8-35255</principalFileNo>
            <principalCrdNo>000017454</principalCrdNo>
            <principalLei>VJW2DOOHGDT6PR0ZRO63</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>245752737.11000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>812910161.89000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>378681259.29000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>605475432.92000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>3416272000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>National Securities Clearing Corporation</principalName>
            <principalFileNo>8-164</principalFileNo>
            <principalCrdNo>000007569</principalCrdNo>
            <principalLei>549300RYC9NELN2ICA34</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>7054943294.05000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Wells Fargo Securities, LLC</principalName>
            <principalFileNo>8-65876</principalFileNo>
            <principalCrdNo>000126292</principalCrdNo>
            <principalLei>VYVVCKR63DVZZN70PB21</principalLei>
            <principalStateCountry principalState="US-NC" principalCountry="US"/>
            <principalTotalPurchaseSale>328282539.40000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>751613413.71000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>190215594.16000000</principalTotalPurchaseSale>
          </principalTransaction>
        </principalTransactions>
        <principalAggregatePurchase>15460643910.83000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>11600165117.35769230</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares Core 10+ Year USD Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000026652</mgmtInvSeriesId>
        <mgmtInvLei>549300AS0BPHN7FEW779</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares Core 10+ Year USD Bond ETF" sharesOutstandingClassId="C000080010" sharesOutstandingTickerSymbol="ILTB"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.09000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.09000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.49000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.49000000</indexFundReturnDailyStdevAfterExpense>
          </indexFundInfo>
        </fundTypes>
        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>5391090.23000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>70509.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>J.P. Morgan Securities LLC</custodianName>
            <custodianLei>ZBUT11V806EZRVTWT807</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>5041161.05000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>7391066.07000000</principalTotalPurchaseSale>
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                <creditUser fundName="iShares Global Infrastructure ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares Currency Hedged MSCI EAFE ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares Short Treasury Bond ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares Global Utilities ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI China A ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares Emerging Markets Equity Factor ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares Exponential Technologies ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares Breakthrough Environmental Solutions ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI Mexico ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares MSCI South Korea ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares MSCI Japan Value ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares Global Materials ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI Brazil ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares MSCI Norway ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI Switzerland ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares MSCI ACWI ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares Global Clean Energy ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI Japan ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares MSCI France ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares J.P. Morgan EM Local Currency Bond ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares MSCI United Kingdom Small-Cap ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI All Country Asia ex Japan ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI Sweden ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares MSCI Saudi Arabia ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI Germany ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares MSCI Denmark ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares Genomics Immunology and Healthcare ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI Thailand ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares Currency Hedged MSCI Eurozone ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares Frontier and Select EM ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares MSCI India Small-Cap ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI Global Min Vol Factor ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares MSCI UAE ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI Japan Small-Cap ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares MSCI Agriculture Producers ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares MSCI Indonesia ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI China Small-Cap ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI Emerging Markets ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares Copper and Metals Mining ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares Currency Hedged MSCI Emerging Markets ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares MSCI ACWI Low Carbon Target ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares Currency Hedged MSCI Germany ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares International Dividend Growth ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI Taiwan ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares MSCI Spain ETF" secFileNo="811-09102"/>
                <creditUser fundName="iShares Robotics and Artificial Intelligence Multisector ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares MSCI Peru and Global Exposure ETF" secFileNo="811-09729"/>
                <creditUser fundName="iShares Global Comm Services ETF" secFileNo="811-09729"/>
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              <isCreditLineUsed>N</isCreditLineUsed>
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        </lineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
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      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares New York Muni Bond ETF</mgmtInvFundName>
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        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
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          <fundType>Exchange-Traded Fund</fundType>
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            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>0.01000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>0.01000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.15000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.15000000</indexFundReturnDailyStdevAfterExpense>
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        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <didFundLendSecurities>N</didFundLendSecurities>
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            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
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            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
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                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
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              <didIndemnificationRights>N</didIndemnificationRights>
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        <paymentToAgentManagers>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
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        <avgPortfolioSecuritiesValue>N/A</avgPortfolioSecuritiesValue>
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        <relyOnRuleTypes>
          <relyOnRuleType>Rule 17a-7 (17 CFR 270.17a-7)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
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          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
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        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
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        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
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            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
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          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
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          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
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          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
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          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
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          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
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        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
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            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
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          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
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            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
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            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Deutsche Bank Securities Inc.</principalName>
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            <principalLei>9J6MBOOO7BECTDTUZW19</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>4784882.54000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
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            <principalLei>549300LCO2FLSSVFFR64</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
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          </principalTransaction>
          <principalTransaction>
            <principalName>Kleinwort Benson North America Inc.</principalName>
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            <principalLei>N/A</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
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          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
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            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>298143492.55000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
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            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>7500472.20000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
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            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>14660000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BMO Capital Markets Corp.</principalName>
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            <principalCrdNo>000016686</principalCrdNo>
            <principalLei>RUC0QBLBRPRCU4W1NE59</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>5998651.21000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
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            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
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          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
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            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>23634900.66000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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            <principalCrdNo>000008209</principalCrdNo>
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        <principalAggregatePurchase>515635568.64000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>166190430.37692307</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
      <managementInvestmentQuestion>
        <mgmtInvFundName>iShares 7-10 Year Treasury Bond ETF</mgmtInvFundName>
        <mgmtInvSeriesId>S000004358</mgmtInvSeriesId>
        <mgmtInvLei>549300XS1PPZG92M8L16</mgmtInvLei>
        <isFirstFilingByFund>N</isFirstFilingByFund>
        <numAuthorizedClass>0</numAuthorizedClass>
        <numAddedClass>0</numAddedClass>
        <numTerminatedClass>0</numTerminatedClass>
        <sharesOutstandings>
          <sharesOutstanding sharesOutstandingClassName="iShares 7-10 Year Treasury Bond ETF" sharesOutstandingClassId="C000012088" sharesOutstandingTickerSymbol="IEF"/>
        </sharesOutstandings>
        <fundTypes>
          <fundType>Exchange-Traded Fund</fundType>
          <indexFundInfo fundType="Index Fund">
            <isIndexFundAffiliated>N</isIndexFundAffiliated>
            <isIndexFundExclusive>N</isIndexFundExclusive>
            <indexFundReturnDiffBeforeExpense>-0.09000000</indexFundReturnDiffBeforeExpense>
            <indexFundReturnDiffAfterExpense>-0.09000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.31000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.31000000</indexFundReturnDailyStdevAfterExpense>
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        <isNonDiversifiedCompany>N</isNonDiversifiedCompany>
        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
        </fundLendSecurities>
        <securityLendings>
          <securityLending>
            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
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        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>18676291.16000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>624788.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
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        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
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            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
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        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
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            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
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            <pricingServiceCountry>GB</pricingServiceCountry>
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          </pricingService>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
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            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
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          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
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          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
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            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
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          <custodian>
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            <isCustodianAffiliated>N</isCustodianAffiliated>
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            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
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        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
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        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
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            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
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          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
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            <principalName>BMO Capital Markets Corp.</principalName>
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            <principalTotalPurchaseSale>2926766445.61000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>BNP Paribas Securities Corp.</principalName>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
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          <principalTransaction>
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          <principalTransaction>
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          <principalTransaction>
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          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
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        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>27903105005.38461538</mnthlyAvgNetAssets>
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        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
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      <managementInvestmentQuestion>
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        <mgmtInvSeriesId>S000013694</mgmtInvSeriesId>
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        <sharesOutstandings>
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        <fundTypes>
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            <indexFundReturnDiffAfterExpense>0.61000000</indexFundReturnDiffAfterExpense>
            <indexFundReturnDailyStdevBeforeExpense>0.06000000</indexFundReturnDailyStdevBeforeExpense>
            <indexFundReturnDailyStdevAfterExpense>0.06000000</indexFundReturnDailyStdevAfterExpense>
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        <isForeignSubsidiary>N</isForeignSubsidiary>
        <isFundSecuritiesLending>Y</isFundSecuritiesLending>
        <fundLendSecurities didFundLendSecurities="Y">
          <isFundLiquidated>N</isFundLiquidated>
          <isFundAdverselyImpacted>N</isFundAdverselyImpacted>
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        <securityLendings>
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            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
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            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
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                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
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              <didIndemnificationRights>N</didIndemnificationRights>
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            <securitiesAgentName>BlackRock Institutional Trust Company, National Association</securitiesAgentName>
            <securitiesAgentLei>549300RK1FB0VMTPD087</securitiesAgentLei>
            <isSecuritiesAgentAffiliated>Y</isSecuritiesAgentAffiliated>
            <securityAgentIdemnity isSecurityAgentIdemnity="Y">
              <idemnityProviders>
                <idemnityProvider idemnityProviderName="BlackRock, Inc." idemnityProviderLei="549300LRIF3NWCU26A80"/>
              </idemnityProviders>
              <didIndemnificationRights>N</didIndemnificationRights>
            </securityAgentIdemnity>
          </securityLending>
        </securityLendings>
        <collateralManagers>
          <collateralManager collateralManagerName="BlackRock Fund Advisors" collateralManagerLei="549300YOOGP0Y1M95C20" isCollateralManagerAffliliated="Y" isCollateralManagerAffliliatedWithFund="Y"/>
        </collateralManagers>
        <paymentToAgentManagers>
          <paymentToAgentManagerType>Cash collateral reinvestment fee</paymentToAgentManagerType>
          <paymentToAgentManagerType>Revenue sharing split</paymentToAgentManagerType>
          <paymentToAgentManagerType>Other</paymentToAgentManagerType>
          <otherFeeDesc>Rebates paid to borrowers</otherFeeDesc>
        </paymentToAgentManagers>
        <avgPortfolioSecuritiesValue>2717151772.65000000</avgPortfolioSecuritiesValue>
        <netIncomeSecuritiesLending>18993509.00000000</netIncomeSecuritiesLending>
        <relyOnRuleTypes>
          <relyOnRuleType>Rule 18f-4(e) (17 CFR 270.18f-4(e))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(f)(17 CFR 270.18f-4(f))</relyOnRuleType>
          <relyOnRuleType>Rule 17a-6 (17 CFR 270.17a-6)</relyOnRuleType>
          <relyOnRuleType>Rule 32a-4 (17 CFR 270.32a-4)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-1 (17 CFR 270.12d1-1)</relyOnRuleType>
          <relyOnRuleType>Rule 12d1-4 (17 CFR 270.12d1-4)</relyOnRuleType>
          <relyOnRuleType>Rule 6c-11 (17 CFR 270.6c-11)</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4(c)(4) (17CFR 270.18f-4(c)(4))</relyOnRuleType>
          <relyOnRuleType>Rule 18f-4 (17 CFR 270.18f-4)</relyOnRuleType>
        </relyOnRuleTypes>
        <isExpenseLimitationInPlace>N</isExpenseLimitationInPlace>
        <isExpenseReducedOrWaived>N</isExpenseReducedOrWaived>
        <isFeesWaivedRecoupable>N</isFeesWaivedRecoupable>
        <isExpenseWaivedRecoupable>N</isExpenseWaivedRecoupable>
        <investmentAdvisers>
          <investmentAdviser>
            <investmentAdviserName>BlackRock Fund Advisors</investmentAdviserName>
            <investmentAdviserFileNo>801-22609</investmentAdviserFileNo>
            <investmentAdviserCrdNo>000105247</investmentAdviserCrdNo>
            <investmentAdviserLei>549300YOOGP0Y1M95C20</investmentAdviserLei>
            <investmentAdviserStateCountry investmentAdviserState="US-CA" investmentAdviserCountry="US"/>
            <isInvestmentAdviserHired>N</isInvestmentAdviserHired>
          </investmentAdviser>
        </investmentAdvisers>
        <transferAgents>
          <transferAgent>
            <transferAgentName>State Street Bank and Trust Company</transferAgentName>
            <transferAgentFileNo>85-05003</transferAgentFileNo>
            <transferAgentLei>571474TGEMMWANRLN572</transferAgentLei>
            <transferAgentStateCountry transferAgentState="US-MA" transferAgentCountry="US"/>
            <isTransferAgentAffiliated>N</isTransferAgentAffiliated>
            <isTransferAgentSubAgent>N</isTransferAgentSubAgent>
          </transferAgent>
        </transferAgents>
        <isTransferAgentHiredOrTerminated>N</isTransferAgentHiredOrTerminated>
        <pricingServices>
          <pricingService>
            <pricingServiceName>S&amp;P Global Inc.</pricingServiceName>
            <pricingServiceLei>Y6X4K52KMJMZE7I7MY94</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>ICE Data Services, Inc.</pricingServiceName>
            <pricingServiceLei>13-3668779</pricingServiceLei>
            <pricingServiceIdNumberDesc>Tax ID</pricingServiceIdNumberDesc>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>London Stock Exchange Group PLC</pricingServiceName>
            <pricingServiceLei>213800QAUUUP6I445N30</pricingServiceLei>
            <pricingServiceCountry>GB</pricingServiceCountry>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
          <pricingService>
            <pricingServiceName>Bloomberg L.P.</pricingServiceName>
            <pricingServiceLei>549300B56MD0ZC402L06</pricingServiceLei>
            <pricingServiceStateCountry pricingServiceState="US-NY" pricingServiceCountry="US"/>
            <isPricingServiceAffiliated>N</isPricingServiceAffiliated>
          </pricingService>
        </pricingServices>
        <isPricingServiceHiredOrTerminated>N</isPricingServiceHiredOrTerminated>
        <custodians>
          <custodian>
            <custodianName>Euroclear Bank</custodianName>
            <custodianLei>549300OZ46BRLZ8Y6F65</custodianLei>
            <custodianCountry>BE</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign securities depository - rule 17f-7 (17 CFR 270.17f-7)</custodyType>
          </custodian>
          <custodian>
            <custodianName>BofA Securities, Inc.</custodianName>
            <custodianLei>549300HN4UKV1E2R3U73</custodianLei>
            <custodianStateCountry custodianState="US-NY" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Futures commission merchants and commodity clearing organizations - rule 17f-6 (17 CFR 270.17f-6)</custodyType>
          </custodian>
          <custodian>
            <custodianName>State Street Bank and Trust Company</custodianName>
            <custodianLei>571474TGEMMWANRLN572</custodianLei>
            <custodianStateCountry custodianState="US-MA" custodianCountry="US"/>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>N</isSubCustodian>
            <custodyType>Bank - section 17(f)(1) (15 U.S.C. 80a-17(f)(1))</custodyType>
          </custodian>
          <custodian>
            <custodianName>BNP Paribas</custodianName>
            <custodianLei>R0MUWSFPU8MPRO8K5P83</custodianLei>
            <custodianCountry>FR</custodianCountry>
            <isCustodianAffiliated>N</isCustodianAffiliated>
            <isSubCustodian>Y</isSubCustodian>
            <custodyType>Foreign custodian - rule 17f-5 (17 CFR 270.17f-5)</custodyType>
          </custodian>
        </custodians>
        <isCustodianHiredOrTerminated>N</isCustodianHiredOrTerminated>
        <isShareholderServiceHiredTerminated>N</isShareholderServiceHiredTerminated>
        <admins>
          <admin>
            <adminName>State Street Bank and Trust Company</adminName>
            <adminLei>571474TGEMMWANRLN572</adminLei>
            <adminStateCountry adminState="US-MA" adminCountry="US"/>
            <isAdminAffiliated>N</isAdminAffiliated>
            <isAdminSubAdmin>N</isAdminSubAdmin>
          </admin>
        </admins>
        <isAdminHiredOrTerminated>N</isAdminHiredOrTerminated>
        <brokerDealers>
          <brokerDealer>
            <brokerDealerName>BlackRock Investments, LLC</brokerDealerName>
            <brokerDealerFileNo>8-48436</brokerDealerFileNo>
            <brokerDealerCrdNo>000038642</brokerDealerCrdNo>
            <brokerDealerLei>54930061FBHCKXL2G714</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
          <brokerDealer>
            <brokerDealerName>BlackRock Execution Services</brokerDealerName>
            <brokerDealerFileNo>8-48719</brokerDealerFileNo>
            <brokerDealerCrdNo>000039438</brokerDealerCrdNo>
            <brokerDealerLei>549300HFCRQ0NT5KY652</brokerDealerLei>
            <brokerDealerStateCountry brokerDealerState="US-NY" brokerDealerCountry="US"/>
            <brokerDealerCommission>0.00000000</brokerDealerCommission>
          </brokerDealer>
        </brokerDealers>
        <aggregateCommission>0.00000000</aggregateCommission>
        <principalTransactions>
          <principalTransaction>
            <principalName>Citigroup Global Markets Inc.</principalName>
            <principalFileNo>8-8177</principalFileNo>
            <principalCrdNo>000007059</principalCrdNo>
            <principalLei>MBNUM2BPBDO7JBLYG310</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>2003739275.63000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>Goldman Sachs &amp; Co. LLC</principalName>
            <principalFileNo>8-129</principalFileNo>
            <principalCrdNo>000000361</principalCrdNo>
            <principalLei>FOR8UP27PHTHYVLBNG30</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>11267578095.55000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BNY Mellon Capital Markets, LLC</principalName>
            <principalFileNo>8-35255</principalFileNo>
            <principalCrdNo>000017454</principalCrdNo>
            <principalLei>VJW2DOOHGDT6PR0ZRO63</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>424772555.24000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>BlackRock Funds III - BlackRock Cash Funds: Treasury</principalName>
            <principalFileNo>N/A</principalFileNo>
            <principalCrdNo>N/A</principalCrdNo>
            <principalLei>5493005PQV5UQG4OSI49</principalLei>
            <principalStateCountry principalState="US-DE" principalCountry="US"/>
            <principalTotalPurchaseSale>4155540000.00000000</principalTotalPurchaseSale>
          </principalTransaction>
          <principalTransaction>
            <principalName>BofA Securities, Inc.</principalName>
            <principalFileNo>8-69787</principalFileNo>
            <principalCrdNo>000283942</principalCrdNo>
            <principalLei>549300HN4UKV1E2R3U73</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>3228546398.48000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>RBC Capital Markets, LLC</principalName>
            <principalFileNo>8-45411</principalFileNo>
            <principalCrdNo>000031194</principalCrdNo>
            <principalLei>549300LCO2FLSSVFFR64</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>197277489.81000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Jefferies LLC</principalName>
            <principalFileNo>8-15074</principalFileNo>
            <principalCrdNo>000002347</principalCrdNo>
            <principalLei>58PU97L1C0WSRCWADL48</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>39716033085.43000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Barclays Capital Inc.</principalName>
            <principalFileNo>8-41342</principalFileNo>
            <principalCrdNo>000019714</principalCrdNo>
            <principalLei>AC28XWWI3WIBK2824319</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>7232431744.84000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>J.P. Morgan Securities LLC</principalName>
            <principalFileNo>8-35008</principalFileNo>
            <principalCrdNo>000000079</principalCrdNo>
            <principalLei>ZBUT11V806EZRVTWT807</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>40656089396.28000000</principalTotalPurchaseSale>
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          <principalTransaction>
            <principalName>Morgan Stanley &amp; Co. LLC</principalName>
            <principalFileNo>8-15869</principalFileNo>
            <principalCrdNo>000008209</principalCrdNo>
            <principalLei>9R7GPTSO7KV3UQJZQ078</principalLei>
            <principalStateCountry principalState="US-NY" principalCountry="US"/>
            <principalTotalPurchaseSale>6262895246.83000000</principalTotalPurchaseSale>
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        </principalTransactions>
        <principalAggregatePurchase>115971436096.37000000</principalAggregatePurchase>
        <isBrokerageResearchPayment>N</isBrokerageResearchPayment>
        <mnthlyAvgNetAssets>15056899281.58230769</mnthlyAvgNetAssets>
        <hasLineOfCredit>N</hasLineOfCredit>
        <isInterfundLending>N</isInterfundLending>
        <isInterfundBorrowing>N</isInterfundBorrowing>
      </managementInvestmentQuestion>
    </managementInvestmentQuestionSeriesInfo>
    <exchangeSeriesInfo>
      <exchangeTradedFund>
        <fundName>iShares Agency Bond ETF</fundName>
        <etfSeriesId>S000023506</etfSeriesId>
        <securityExchanges>
          <securityExchange fundExchange="ARCX" fundsTickerSymbol="AGZ"/>
        </securityExchanges>
        <authorizedParticipants>
          <authorizedParticipant authorizedParticipantName="J.P. Morgan Securities LLC" authorizedParticipantFileNo="8-35008" authorizedParticipantCrdNo="000000079" authorizedParticipantLei="ZBUT11V806EZRVTWT807" authorizedParticipantPurchaseValue="0.00000000" authorizedParticipantRedeemValue="0.00000000"/>
          <authorizedParticipant authorizedParticipantName="RBC Capital Markets, LLC" authorizedParticipantFileNo="8-45411" authorizedParticipantCrdNo="000031194" authorizedParticipantLei="549300LCO2FLSSVFFR64" authorizedParticipantPurchaseValue="0.00000000" authorizedParticipantRedeemValue="0.00000000"/>
          <authorizedParticipant authorizedParticipantName="Virtu Americas LLC" authorizedParticipantFileNo="8-68193" authorizedParticipantCrdNo="000149823" authorizedParticipantLei="549300RA02N3BNSWBV74" authorizedParticipantPurchaseValue="10858701.00000000" authorizedParticipantRedeemValue="0.00000000"/>
          <authorizedParticipant authorizedParticipantName="BNY Mellon Capital Markets, LLC" authorizedParticipantFileNo="8-35255" authorizedParticipantCrdNo="000017454" authorizedParticipantLei="VJW2DOOHGDT6PR0ZRO63" authorizedParticipantPurchaseValue="0.00000000" authorizedParticipantRedeemValue="0.00000000"/>
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          <authorizedParticipant authorizedParticipantName="Merrill Lynch Professional Clearing Corp." authorizedParticipantFileNo="8-33359" authorizedParticipantCrdNo="000016139" authorizedParticipantLei="549300PMHS66E71I2D34" authorizedParticipantPurchaseValue="37271469.60000000" authorizedParticipantRedeemValue="5417483.30000000"/>
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        <isCollateralRequired>Y</isCollateralRequired>
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    <attachmentsTab>
      <isIPAReportInternalControl>true</isIPAReportInternalControl>
    </attachmentsTab>
    <signature registrantSignedName="iShares Trust" signedDate="2024-05-10" signature="Chuck Pulsfort" title="Assistant Treasurer"/>
  </formData>
</edgarSubmission>
