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          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Docusign Inc</name>
        <lei>549300Q7PVDWRZ39JG09</lei>
        <title>Docusign Inc</title>
        <cusip>256163106</cusip>
        <identifiers>
          <isin value="US2561631068"/>
          <ticker value="DOCU"/>
          <other otherDesc="SEDOL" value="BFYT7B7"/>
        </identifiers>
        <balance>46798.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4146770.7800000000</valUSD>
        <pctVal>4.9850117194</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>Duolingo Inc</name>
        <lei>N/A</lei>
        <title>Duolingo Inc</title>
        <cusip>26603R106</cusip>
        <identifiers>
          <isin value="US26603R1068"/>
          <ticker value="DUOL"/>
          <other otherDesc="SEDOL" value="BMCM6P4"/>
        </identifiers>
        <balance>6669.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3465279.0900000000</valUSD>
        <pctVal>4.1657612130</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>Element Solutions Inc</name>
        <lei>549300FLGN6P5CU20J91</lei>
        <title>Element Solutions Inc</title>
        <cusip>28618M106</cusip>
        <identifiers>
          <isin value="US28618M1062"/>
          <ticker value="ESI"/>
          <other otherDesc="SEDOL" value="BJ1C2K1"/>
        </identifiers>
        <balance>65821.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1407252.9800000000</valUSD>
        <pctVal>1.6917194052</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>Equifax Inc</name>
        <lei>5493004MCF8JDC86VS77</lei>
        <title>Equifax Inc</title>
        <cusip>294429105</cusip>
        <identifiers>
          <isin value="US2944291051"/>
          <ticker value="EFX"/>
          <other otherDesc="SEDOL" value="2319146"/>
        </identifiers>
        <balance>5102.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1347897.3800000000</valUSD>
        <pctVal>1.6203654825</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>GE HealthCare Technologies Inc</name>
        <lei>549300OI9J7XOWZMUN85</lei>
        <title>GE HealthCare Technologies Inc</title>
        <cusip>36266G107</cusip>
        <identifiers>
          <isin value="US36266G1076"/>
          <ticker value="GEHC"/>
          <other otherDesc="SEDOL" value="BL6JPG8"/>
        </identifiers>
        <balance>8618.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>607913.7200000000</valUSD>
        <pctVal>0.7307992603</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>Bio-Techne Corp</name>
        <lei>N/A</lei>
        <title>Bio-Techne Corp</title>
        <cusip>09073M104</cusip>
        <identifiers>
          <isin value="US09073M1045"/>
          <ticker value="TECH"/>
          <other otherDesc="SEDOL" value="BSHZ3Q0"/>
        </identifiers>
        <balance>10656.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>515750.4000000000</valUSD>
        <pctVal>0.6200057646</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>555017.7300000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>555017.7300000000</valUSD>
        <pctVal>0.6672107129</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>MSCI Inc</name>
        <lei>549300HTIN2PD78UB763</lei>
        <title>MSCI Inc</title>
        <cusip>55354G100</cusip>
        <identifiers>
          <isin value="US55354G1004"/>
          <ticker value="MSCI"/>
          <other otherDesc="SEDOL" value="B2972D2"/>
        </identifiers>
        <balance>5558.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3134823.1600000000</valUSD>
        <pctVal>3.7685059097</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>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>11937.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2253466.8600000000</valUSD>
        <pctVal>2.7089895493</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>Monolithic Power Systems Inc</name>
        <lei>N/A</lei>
        <title>Monolithic Power Systems Inc</title>
        <cusip>609839105</cusip>
        <identifiers>
          <isin value="US6098391054"/>
          <ticker value="MPWR"/>
          <other otherDesc="SEDOL" value="B01Z7J1"/>
        </identifiers>
        <balance>4258.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2818370.2000000000</valUSD>
        <pctVal>3.3880841797</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>Natera Inc</name>
        <lei>N/A</lei>
        <title>Natera Inc</title>
        <cusip>632307104</cusip>
        <identifiers>
          <isin value="US6323071042"/>
          <ticker value="NTRA"/>
          <other otherDesc="SEDOL" value="BYQRG48"/>
        </identifiers>
        <balance>7231.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1140545.6300000000</valUSD>
        <pctVal>1.3710990150</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>Pool Corp</name>
        <lei>5493005VZK1KMN6CO617</lei>
        <title>Pool Corp</title>
        <cusip>73278L105</cusip>
        <identifiers>
          <isin value="US73278L1052"/>
          <ticker value="POOL"/>
          <other otherDesc="SEDOL" value="2781585"/>
        </identifiers>
        <balance>8504.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2556217.3600000000</valUSD>
        <pctVal>3.0729389621</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>Republic Services Inc</name>
        <lei>NKNQHM6BLECKVOQP7O46</lei>
        <title>Republic Services Inc</title>
        <cusip>760759100</cusip>
        <identifiers>
          <isin value="US7607591002"/>
          <ticker value="RSG"/>
          <other otherDesc="SEDOL" value="2262530"/>
        </identifiers>
        <balance>10732.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2761236.2800000000</valUSD>
        <pctVal>3.3194010342</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>TPG Inc</name>
        <lei>549300NLO4R8MX77XJ02</lei>
        <title>TPG Inc</title>
        <cusip>872657101</cusip>
        <identifiers>
          <isin value="US8726571016"/>
          <ticker value="TPG"/>
          <other otherDesc="SEDOL" value="BNKBB55"/>
        </identifiers>
        <balance>33296.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1602536.4800000000</valUSD>
        <pctVal>1.9264781097</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>Targa Resources Corp</name>
        <lei>5493003QENHHS261UR94</lei>
        <title>Targa Resources Corp</title>
        <cusip>87612G101</cusip>
        <identifiers>
          <isin value="US87612G1013"/>
          <ticker value="TRGP"/>
          <other otherDesc="SEDOL" value="B55PZY3"/>
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        <balance>15916.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2513613.8800000000</valUSD>
        <pctVal>3.0217234843</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>
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      </invstOrSec>
      <invstOrSec>
        <name>TopBuild Corp</name>
        <lei>5493007YSKHOL4RWII46</lei>
        <title>TopBuild Corp</title>
        <cusip>89055F103</cusip>
        <identifiers>
          <isin value="US89055F1030"/>
          <ticker value="BLD"/>
          <other otherDesc="SEDOL" value="BZ0P3W2"/>
        </identifiers>
        <balance>5084.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1438212.7600000000</valUSD>
        <pctVal>1.7289374899</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>Vertiv Holdings Co</name>
        <lei>549300KTTIRAOGXCRV69</lei>
        <title>Vertiv Holdings Co</title>
        <cusip>92537N108</cusip>
        <identifiers>
          <isin value="US92537N1081"/>
          <ticker value="VRT"/>
          <other otherDesc="SEDOL" value="BL3LWS8"/>
        </identifiers>
        <balance>9617.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1037962.8100000000</valUSD>
        <pctVal>1.2477797898</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>Vistra Corp</name>
        <lei>N/A</lei>
        <title>Vistra Corp</title>
        <cusip>92840M102</cusip>
        <identifiers>
          <isin value="US92840M1027"/>
          <ticker value="VST"/>
          <other otherDesc="SEDOL" value="BZ8VJQ8"/>
        </identifiers>
        <balance>14447.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2319754.7900000000</valUSD>
        <pctVal>2.7886771244</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>WESCO International Inc</name>
        <lei>N/A</lei>
        <title>WESCO International Inc</title>
        <cusip>95082P105</cusip>
        <identifiers>
          <isin value="US95082P1057"/>
          <ticker value="WCC"/>
          <other otherDesc="SEDOL" value="2416973"/>
        </identifiers>
        <balance>9625.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1615941.2500000000</valUSD>
        <pctVal>1.9425925609</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>West Pharmaceutical Services Inc</name>
        <lei>5493007NKRGM1RJQ1P16</lei>
        <title>West Pharmaceutical Services Inc</title>
        <cusip>955306105</cusip>
        <identifiers>
          <isin value="US9553061055"/>
          <ticker value="WST"/>
          <other otherDesc="SEDOL" value="2950482"/>
        </identifiers>
        <balance>4622.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>974548.7000000000</valUSD>
        <pctVal>1.1715469575</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>Zscaler Inc</name>
        <lei>N/A</lei>
        <title>Zscaler Inc</title>
        <cusip>98980G102</cusip>
        <identifiers>
          <isin value="US98980G1022"/>
          <ticker value="ZS"/>
          <other otherDesc="SEDOL" value="BZ00V34"/>
        </identifiers>
        <balance>17112.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4717778.4000000000</valUSD>
        <pctVal>5.6714445676</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>Johnson Controls International plc</name>
        <lei>549300XQ6S1GYKGBL205</lei>
        <title>Johnson Controls International plc</title>
        <cusip>G51502105</cusip>
        <identifiers>
          <isin value="IE00BY7QL619"/>
          <ticker value="JCI"/>
          <other otherDesc="SEDOL" value="BY7QL61"/>
        </identifiers>
        <balance>36271.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3676791.2700000000</valUSD>
        <pctVal>4.4200291126</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>
    </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>
