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        <pctVal>3.6393984034</pctVal>
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        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Manhattan Associates Inc</name>
        <lei>N/A</lei>
        <title>Manhattan Associates Inc</title>
        <cusip>562750109</cusip>
        <identifiers>
          <isin value="US5627501092"/>
          <ticker value="MANH"/>
          <other otherDesc="SEDOL" value="2239471"/>
        </identifiers>
        <balance>9215.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1114369.9500000000</valUSD>
        <pctVal>4.4506735505</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Marvell Technology Inc</name>
        <lei>N/A</lei>
        <title>Marvell Technology Inc</title>
        <cusip>573874104</cusip>
        <identifiers>
          <isin value="US5738741041"/>
          <ticker value="MRVL"/>
          <other otherDesc="SEDOL" value="BNKJSM5"/>
        </identifiers>
        <balance>19646.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1162060.9000000000</valUSD>
        <pctVal>4.6411460680</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Palo Alto Networks Inc</name>
        <lei>549300QXR2YVZV231H43</lei>
        <title>Palo Alto Networks Inc</title>
        <cusip>697435105</cusip>
        <identifiers>
          <isin value="US6974351057"/>
          <ticker value="PANW"/>
          <other otherDesc="SEDOL" value="B87ZMX0"/>
        </identifiers>
        <balance>3871.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1946261.3800000000</valUSD>
        <pctVal>7.7731583181</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</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 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>395404.4900000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>395404.4900000000</valUSD>
        <pctVal>1.5792029437</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>Sarepta Therapeutics Inc</name>
        <lei>549300IKDPIED8J8IG21</lei>
        <title>Sarepta Therapeutics Inc</title>
        <cusip>803607100</cusip>
        <identifiers>
          <isin value="US8036071004"/>
          <ticker value="SRPT"/>
          <other otherDesc="SEDOL" value="B8DPDT7"/>
        </identifiers>
        <balance>7624.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>555179.6800000000</valUSD>
        <pctVal>2.2173278430</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Veeva Systems Inc</name>
        <lei>549300YZEXPDB92M2F02</lei>
        <title>Veeva Systems Inc</title>
        <cusip>922475108</cusip>
        <identifiers>
          <isin value="US9224751084"/>
          <ticker value="VEEV"/>
          <other otherDesc="SEDOL" value="BFH3N85"/>
        </identifiers>
        <balance>4206.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>716113.5600000000</valUSD>
        <pctVal>2.8600804254</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Vertex Pharmaceuticals Inc</name>
        <lei>54930015RAQRRZ5ZGJ91</lei>
        <title>Vertex Pharmaceuticals Inc</title>
        <cusip>92532F100</cusip>
        <identifiers>
          <isin value="US92532F1003"/>
          <ticker value="VRTX"/>
          <other otherDesc="SEDOL" value="2931034"/>
        </identifiers>
        <balance>1688.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>453481.2000000000</valUSD>
        <pctVal>1.8111550679</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Zurn Water Solutions Corp</name>
        <lei>549300AM3633XDFU1Q85</lei>
        <title>Zurn Water Solutions Corp</title>
        <cusip>98983L108</cusip>
        <identifiers>
          <isin value="US98983L1089"/>
          <ticker value="ZWS"/>
          <other otherDesc="SEDOL" value="BMV1ZD3"/>
        </identifiers>
        <balance>19548.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>563373.3600000000</valUSD>
        <pctVal>2.2500525184</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Horizon Therapeutics Plc</name>
        <lei>N/A</lei>
        <title>Horizon Therapeutics Plc</title>
        <cusip>G46188101</cusip>
        <identifiers>
          <isin value="IE00BQPVQZ61"/>
          <ticker value="HZNP"/>
          <other otherDesc="SEDOL" value="BQPVQZ6"/>
        </identifiers>
        <balance>6907.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>619488.8300000000</valUSD>
        <pctVal>2.4741716613</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Aptiv PLC</name>
        <lei>N/A</lei>
        <title>Aptiv PLC</title>
        <cusip>G6095L109</cusip>
        <identifiers>
          <isin value="JE00B783TY65"/>
          <ticker value="APTV"/>
          <other otherDesc="SEDOL" value="B783TY6"/>
        </identifiers>
        <balance>9489.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1008111.3600000000</valUSD>
        <pctVal>4.0262881873</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>IE</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Trane Technologies PLC</name>
        <lei>N/A</lei>
        <title>Trane Technologies PLC</title>
        <cusip>G8994E103</cusip>
        <identifiers>
          <isin value="IE00BK9ZQ967"/>
          <ticker value="TT"/>
          <other otherDesc="SEDOL" value="BK9ZQ96"/>
        </identifiers>
        <balance>6865.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>947781.9000000000</valUSD>
        <pctVal>3.7853388222</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>IE</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <signature>
      <ncom:dateSigned>2022-07-27</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>
