<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/nport" xmlns:com="http://www.sec.gov/edgar/common" xmlns:ncom="http://www.sec.gov/edgar/nportcommon" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance">
  <headerData>
    <submissionType>NPORT-P</submissionType>
    <isConfidential>false</isConfidential>
    <filerInfo>

      <filer>
        <issuerCredentials>
          <cik>0001710607</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>


      <seriesClassInfo>
        <seriesId>S000080559</seriesId>
        <classId>C000243039</classId>
      </seriesClassInfo>


    </filerInfo>
  </headerData>
  <formData>
    <genInfo>
      <regName>American Century ETF Trust</regName>
      <regFileNumber>811-23305</regFileNumber>
      <regCik>0001710607</regCik>
      <regLei>5493006IKK34YJD98183</regLei>
      <regStreet1>4500 Main St</regStreet1>
      <regCity>Kansas City</regCity>
      <regStateConditional regCountry="US" regState="US-MO"/>
      <regZipOrPostalCode>64111</regZipOrPostalCode>
      <regPhone>816-531-5575</regPhone>
      <seriesName>Avantis Moderate Allocation ETF</seriesName>
      <seriesId>S000080559</seriesId>
      <seriesLei>5493000DRBHVTE5P6B15</seriesLei>
      <repPdEnd>2025-08-31</repPdEnd>
      <repPdDate>2025-05-31</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
    <fundInfo>
      <totAssets>29634197.820000000000</totAssets>
      <totLiabs>1270151.710000000000</totLiabs>
      <netAssets>28364046.110000000000</netAssets>
      <assetsAttrMiscSec>0.000000000000</assetsAttrMiscSec>
      <assetsInvested>0.000000000000</assetsInvested>
      <amtPayOneYrBanksBorr>0.000000000000</amtPayOneYrBanksBorr>
      <amtPayOneYrCtrldComp>0.000000000000</amtPayOneYrCtrldComp>
      <amtPayOneYrOthAffil>0.000000000000</amtPayOneYrOthAffil>
      <amtPayOneYrOther>0.000000000000</amtPayOneYrOther>
      <amtPayAftOneYrBanksBorr>0.000000000000</amtPayAftOneYrBanksBorr>
      <amtPayAftOneYrCtrldComp>0.000000000000</amtPayAftOneYrCtrldComp>
      <amtPayAftOneYrOthAffil>0.000000000000</amtPayAftOneYrOthAffil>
      <amtPayAftOneYrOther>0.000000000000</amtPayAftOneYrOther>
      <delayDeliv>0.000000000000</delayDeliv>
      <standByCommit>0.000000000000</standByCommit>
      <liquidPref>0.000000000000</liquidPref>
      <cshNotRptdInCorD>0.000000000000</cshNotRptdInCorD>
      <borrowers>
        <borrower aggrVal="513205.780000000000" lei="T6FIZBDPKLYJKFCRVK44" name="UBS SECURITIES LLC"/>
        <borrower aggrVal="274226.130000000000" lei="549300HN4UKV1E2R3U73" name="BOFA SECURITIES, INC."/>
        <borrower aggrVal="453863.000000000000" lei="ZBUT11V806EZRVTWT807" name="JP MORGAN SECURITIES LLC"/>
        <borrower aggrVal="82192.000000000000" lei="BFM8T61CT2L1QCEMIK50" name="UBS AG"/>
      </borrowers>
      <aggregateCondition isNonCashCollateral="Y">
        <aggregateInfos>
          <aggregateInfo amt="95691.3800000000" collatrl="84623.9700000000">
            <invstCat>UST</invstCat>
          </aggregateInfo>
        </aggregateInfos>
      </aggregateCondition>
      <returnInfo>
        <monthlyTotReturns>
          <monthlyTotReturn classId="C000243039" rtn1="-2.311511640815" rtn2="-0.525995905669" rtn3="3.902912688577"/>
        </monthlyTotReturns>
        <othMon1 netRealizedGain="18422.1000" netUnrealizedAppr="-799486.4500"/>
        <othMon2 netRealizedGain="125386.2300" netUnrealizedAppr="-402474.7200"/>
        <othMon3 netRealizedGain="84818.7900" netUnrealizedAppr="947504.6800"/>
      </returnInfo>
      <mon1Flow redemption="147386.25" reinvestment="0" sales="436059.5"/>
      <mon2Flow redemption="2079390" reinvestment="0" sales="283832"/>
      <mon3Flow redemption="880453.0000" reinvestment="0.0000" sales="436947.7500"/>



    </fundInfo>
    <invstOrSecs>
      <invstOrSec>
        <name>Avantis International Small Cap Equity ETF</name>
        <lei>5493000AO0EMAL4FQI54</lei>
        <title>Avantis International Small Cap Equity ETF</title>
        <cusip>025072190</cusip>
        <identifiers>
          <isin value="US0250721901"/>
          <other otherDesc="SEDOL" value="BMB3RW2"/>
        </identifiers>
        <balance>3054.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>183469.3600000000</valUSD>
        <pctVal>0.6468377582</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="137571.970000000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis US Small Cap Equity ETF</name>
        <lei>549300DVD8GTQW8VMC57</lei>
        <title>Avantis US Small Cap Equity ETF</title>
        <cusip>025072323</cusip>
        <identifiers>
          <isin value="US0250723238"/>
          <ticker value="AVSC"/>
          <other otherDesc="SEDOL" value="BP4DR19"/>
        </identifiers>
        <balance>13160.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>649972.4000000000</valUSD>
        <pctVal>2.2915362550</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="69146.000000000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis US Large Cap Value ETF</name>
        <lei>549300F1U7C6RG7BQE89</lei>
        <title>Avantis US Large Cap Value ETF</title>
        <cusip>025072349</cusip>
        <identifiers>
          <isin value="US0250723493"/>
          <ticker value="AVLV"/>
          <other otherDesc="SEDOL" value="BLD3JH2"/>
        </identifiers>
        <balance>42256.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2775374.0800000000</valUSD>
        <pctVal>9.7848313645</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis Real Estate ETF</name>
        <lei>549300184FP34KECOZ73</lei>
        <title>Avantis Real Estate ETF</title>
        <cusip>025072356</cusip>
        <identifiers>
          <isin value="US0250723568"/>
          <ticker value="AVRE"/>
          <other otherDesc="SEDOL" value="BLD3JG1"/>
        </identifiers>
        <balance>12290.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>543709.6000000000</valUSD>
        <pctVal>1.9168971799</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="230048.000000000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis International Large Cap Value ETF</name>
        <lei>549300DIIN0FEK4WZC47</lei>
        <title>Avantis International Large Cap Value ETF</title>
        <cusip>025072364</cusip>
        <identifiers>
          <isin value="US0250723642"/>
          <ticker value="AVIV"/>
          <other otherDesc="SEDOL" value="BLD3JF0"/>
        </identifiers>
        <balance>18330.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1130961.0000000000</valUSD>
        <pctVal>3.9873048987</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis Emerging Markets Value ETF</name>
        <lei>549300W1BVGFQ4AEIV67</lei>
        <title>Avantis Emerging Markets Value ETF</title>
        <cusip>025072372</cusip>
        <identifiers>
          <isin value="US0250723725"/>
          <ticker value="AVES"/>
          <other otherDesc="SEDOL" value="BLD3J94"/>
        </identifiers>
        <balance>12785.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>649605.8500000000</valUSD>
        <pctVal>2.2902439500</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="82192.000000000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis Core Fixed Income ETF</name>
        <lei>5493005QQB5ZRJ4CMQ30</lei>
        <title>Avantis Core Fixed Income ETF</title>
        <cusip>025072562</cusip>
        <identifiers>
          <isin value="US0250725621"/>
          <ticker value="AVIG"/>
          <other otherDesc="SEDOL" value="BLFB0V5"/>
        </identifiers>
        <balance>147284.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6053372.4000000000</valUSD>
        <pctVal>21.3417097706</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis Emerging Markets Equity ETF</name>
        <lei>549300FLNHJ0Y6F35177</lei>
        <title>Avantis Emerging Markets Equity ETF</title>
        <cusip>025072604</cusip>
        <identifiers>
          <isin value="US0250726041"/>
          <ticker value="AVEM"/>
          <other otherDesc="SEDOL" value="BKDZSJ6"/>
        </identifiers>
        <balance>19122.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1229735.8200000000</valUSD>
        <pctVal>4.3355444256</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis Short-Term Fixed Income ETF</name>
        <lei>5493004BVNOQGI5XSW72</lei>
        <title>Avantis Short-Term Fixed Income ETF</title>
        <cusip>025072687</cusip>
        <identifiers>
          <isin value="US0250726876"/>
          <ticker value="AVSF"/>
          <other otherDesc="SEDOL" value="BM9T175"/>
        </identifiers>
        <balance>64745.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3029418.5500000000</valUSD>
        <pctVal>10.6804880314</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="453863.000000000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis International Equity ETF</name>
        <lei>549300J3U01FFJ07XD39</lei>
        <title>Avantis International Equity ETF</title>
        <cusip>025072703</cusip>
        <identifiers>
          <isin value="US0250727031"/>
          <ticker value="AVDE"/>
          <other otherDesc="SEDOL" value="BKDZSK7"/>
        </identifiers>
        <balance>30314.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2208981.1800000000</valUSD>
        <pctVal>7.7879621667</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis International Small Cap Value ETF</name>
        <lei>549300IHSLZS0JQXM287</lei>
        <title>Avantis International Small Cap Value ETF</title>
        <cusip>025072802</cusip>
        <identifiers>
          <isin value="US0250728021"/>
          <ticker value="AVDV"/>
          <other otherDesc="SEDOL" value="BKDZSL8"/>
        </identifiers>
        <balance>3262.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>252413.5600000000</valUSD>
        <pctVal>0.8899067468</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis U.S. Small Cap Value ETF</name>
        <lei>549300OVTYY3CGRMI219</lei>
        <title>Avantis U.S. Small Cap Value ETF</title>
        <cusip>025072877</cusip>
        <identifiers>
          <isin value="US0250728773"/>
          <ticker value="AVUV"/>
          <other otherDesc="SEDOL" value="BKDZSM9"/>
        </identifiers>
        <balance>7353.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>648019.8900000000</valUSD>
        <pctVal>2.2846525051</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis US Equity ETF</name>
        <lei>54930069ENIYWNS5S829</lei>
        <title>Avantis US Equity ETF</title>
        <cusip>025072885</cusip>
        <identifiers>
          <isin value="US0250728856"/>
          <ticker value="AVUS"/>
          <other otherDesc="SEDOL" value="BKDZX91"/>
        </identifiers>
        <balance>85182.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>8203026.6000000000</valUSD>
        <pctVal>28.9205093243</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis US Mid Cap Equity ETF</name>
        <lei>254900OJWEFYZP17TZ78</lei>
        <title>Avantis US Mid Cap Equity ETF</title>
        <cusip>025072125</cusip>
        <identifiers>
          <isin value="US0250721257"/>
          <ticker value="AVMC"/>
          <other otherDesc="SEDOL" value="BMH6QX9"/>
        </identifiers>
        <balance>4413.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>282520.2600000000</valUSD>
        <pctVal>0.9960506301</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="212994.540000000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis US Mid Cap Value ETF</name>
        <lei>254900XXC1FJTSL2OV23</lei>
        <title>Avantis US Mid Cap Value ETF</title>
        <cusip>025072133</cusip>
        <identifiers>
          <isin value="US0250721331"/>
          <ticker value="AVMV"/>
          <other otherDesc="SEDOL" value="BMH6RF8"/>
        </identifiers>
        <balance>4454.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>280913.7800000000</valUSD>
        <pctVal>0.9903868401</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Avantis Emerging Markets Small Cap Equity ETF</name>
        <lei>254900VFCHULAYTYFO84</lei>
        <title>Avantis Emerging Markets Small Cap Equity ETF</title>
        <cusip>025072141</cusip>
        <identifiers>
          <isin value="US0250721414"/>
          <ticker value="AVEE"/>
          <other otherDesc="SEDOL" value="BMH6QW8"/>
        </identifiers>
        <balance>3217.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>183618.9600000000</valUSD>
        <pctVal>0.6473651865</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <loanByFundCondition isLoanByFund="Y" loanVal="137671.400000000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>State Street Institutional US Government Money Market Fund</name>
        <lei>549300BZ5TGIFZUZDZ37</lei>
        <title>State Street Institutional US Government Money Market Fund</title>
        <cusip>857492706</cusip>
        <identifiers>
          <isin value="US8574927062"/>
          <ticker value="GVMXX"/>
          <other otherDesc="SEDOL" value="B284MN4"/>
        </identifiers>
        <balance>52852.9700000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>52852.9700000000</valUSD>
        <pctVal>0.1863379075</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>State Street Navigator Securities Lending Trust - State Street Navigator Securities Lending Government Money Market Portfolio</name>
        <lei>5493008BJIBKQ5KTIF74</lei>
        <title>State Street Navigator Securities Lending Government Money Market Portfolio</title>
        <cusip>N/A</cusip>
        <identifiers>
          <other otherDesc="Series ID" value="S000009767"/>
        </identifiers>
        <balance>1269411.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1269411.0000000000</valUSD>
        <pctVal>4.4754228472</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <cashCollateralCondition cashCollateralVal="1269411.000000000000" isCashCollateral="Y"/>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <signature>
      <ncom:dateSigned>2025-07-25</ncom:dateSigned>
      <ncom:nameOfApplicant>American Century ETF Trust</ncom:nameOfApplicant>
      <ncom:signature>Amy R. Bitter</ncom:signature>
      <ncom:signerName>Amy R. Bitter</ncom:signerName>
      <ncom:title>Assistant Treasurer</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
