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          <other otherDesc="SEDOL" value="BDFG6S3"/>
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        <balance>5384.0000000000</balance>
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        <curCd>USD</curCd>
        <valUSD>2754615.9200000000</valUSD>
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        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      </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"/>
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        <balance>11379.0000000000</balance>
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        <curCd>USD</curCd>
        <valUSD>2605791.0000000000</valUSD>
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        <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>Sprouts Farmers Market Inc</name>
        <lei>529900P8F4G77Q52XE24</lei>
        <title>Sprouts Farmers Market Inc</title>
        <cusip>85208M102</cusip>
        <identifiers>
          <isin value="US85208M1027"/>
          <ticker value="SFM"/>
          <other otherDesc="SEDOL" value="BCGCR79"/>
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        <balance>17240.0000000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1273518.8000000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Structure Therapeutics Inc</name>
        <lei>N/A</lei>
        <title>Structure Therapeutics Inc</title>
        <cusip>86366E106</cusip>
        <identifiers>
          <isin value="US86366E1064"/>
          <ticker value="GPCR"/>
          <other otherDesc="SEDOL" value="BQS9486"/>
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        <balance>8335.0000000000</balance>
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        <curCd>USD</curCd>
        <valUSD>524938.3000000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <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"/>
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        <balance>36355.0000000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1578534.1000000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Bio-Techne Corp</name>
        <lei>54930073RLKQ51TILZ35</lei>
        <title>Bio-Techne Corp</title>
        <cusip>09073M104</cusip>
        <identifiers>
          <isin value="US09073M1045"/>
          <ticker value="TECH"/>
          <other otherDesc="SEDOL" value="BSHZ3Q0"/>
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        <balance>20700.0000000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1221300.0000000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      </invstOrSec>
      <invstOrSec>
        <name>Bright Horizons Family Solutions Inc</name>
        <lei>N/A</lei>
        <title>Bright Horizons Family Solutions Inc</title>
        <cusip>109194100</cusip>
        <identifiers>
          <isin value="US1091941005"/>
          <ticker value="BFAM"/>
          <other otherDesc="SEDOL" value="B7MJWP2"/>
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        <balance>11334.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>844609.6800000000</valUSD>
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        <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>
        <name>Cadence Design Systems Inc</name>
        <lei>GCT7RXJOGLXPV0NXZY22</lei>
        <title>Cadence Design Systems Inc</title>
        <cusip>127387108</cusip>
        <identifiers>
          <isin value="US1273871087"/>
          <ticker value="CDNS"/>
          <other otherDesc="SEDOL" value="2302232"/>
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        <balance>12272.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3698780.8000000000</valUSD>
        <pctVal>4.0039155137</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>
        <name>Cameco Corp</name>
        <lei>N4BHALMXL3GMZKCUON55</lei>
        <title>Cameco Corp</title>
        <cusip>13321L108</cusip>
        <identifiers>
          <isin value="CA13321L1085"/>
          <ticker value="CCJ"/>
          <other otherDesc="SEDOL" value="2158684"/>
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        <balance>17653.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2090115.2000000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>CA</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Capstone Copper Corp</name>
        <lei>549300III6KGKKC42W63</lei>
        <title>Capstone Copper Corp</title>
        <cusip>14071L108</cusip>
        <identifiers>
          <isin value="CA14071L1085"/>
          <ticker value="CS"/>
          <other otherDesc="SEDOL" value="BMY5XY9"/>
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        <balance>252154.0000000000</balance>
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        <currencyConditional curCd="CAD" exchangeRt="1.3640500000"/>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>CA</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Carvana Co</name>
        <lei>5493003WEAK2PJ5WS063</lei>
        <title>Carvana Co</title>
        <cusip>146869102</cusip>
        <identifiers>
          <isin value="US1468691027"/>
          <ticker value="CVNA"/>
          <other otherDesc="SEDOL" value="BYQHPG3"/>
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        <balance>6573.0000000000</balance>
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        <curCd>USD</curCd>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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          <isLoanByFund>N</isLoanByFund>
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      <invstOrSec>
        <name>Chipotle Mexican Grill Inc</name>
        <lei>529900REP5VGTPCP1J71</lei>
        <title>Chipotle Mexican Grill Inc</title>
        <cusip>169656105</cusip>
        <identifiers>
          <isin value="US1696561059"/>
          <ticker value="CMG"/>
          <other otherDesc="SEDOL" value="B0X7DZ3"/>
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        <balance>46922.0000000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1746436.8400000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Cloudflare Inc</name>
        <lei>5493007DY18BGNLDWU14</lei>
        <title>Cloudflare Inc</title>
        <cusip>18915M107</cusip>
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          <isin value="US18915M1071"/>
          <ticker value="NET"/>
          <other otherDesc="SEDOL" value="BJXC5M2"/>
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        <balance>28674.0000000000</balance>
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        <curCd>USD</curCd>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Dexcom Inc</name>
        <lei>549300YSK3QDSFR5EU59</lei>
        <title>Dexcom Inc</title>
        <cusip>252131107</cusip>
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          <isin value="US2521311074"/>
          <ticker value="DXCM"/>
          <other otherDesc="SEDOL" value="B0796X4"/>
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        <balance>32849.0000000000</balance>
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        <curCd>USD</curCd>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <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"/>
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        <balance>2318498.7400000000</balance>
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        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Targa Resources Corp</name>
        <lei>5493003QENHHS261UR94</lei>
        <title>Targa Resources Corp</title>
        <cusip>87612G101</cusip>
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          <isin value="US87612G1013"/>
          <ticker value="TRGP"/>
          <other otherDesc="SEDOL" value="B55PZY3"/>
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        <balance>16879.0000000000</balance>
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        <curCd>USD</curCd>
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        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Toast Inc</name>
        <lei>N/A</lei>
        <title>Toast Inc</title>
        <cusip>888787108</cusip>
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          <isin value="US8887871080"/>
          <ticker value="TOST"/>
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        <balance>28490.0000000000</balance>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>TopBuild Corp</name>
        <lei>5493007YSKHOL4RWII46</lei>
        <title>TopBuild Corp</title>
        <cusip>89055F103</cusip>
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          <isin value="US89055F1030"/>
          <ticker value="BLD"/>
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        <balance>7651.0000000000</balance>
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        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Tractor Supply Co</name>
        <lei>549300OJ9VZHZRO6I137</lei>
        <title>Tractor Supply Co</title>
        <cusip>892356106</cusip>
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          <isin value="US8923561067"/>
          <ticker value="TSCO"/>
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        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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      <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"/>
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        <balance>11469.0000000000</balance>
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        <curCd>USD</curCd>
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        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Vistra Corp</name>
        <lei>549300KP43CPCUJOOG15</lei>
        <title>Vistra Corp</title>
        <cusip>92840M102</cusip>
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          <isin value="US92840M1027"/>
          <ticker value="VST"/>
          <other otherDesc="SEDOL" value="BZ8VJQ8"/>
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        <balance>24645.0000000000</balance>
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        <curCd>USD</curCd>
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        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>WESCO International Inc</name>
        <lei>529900TXOGREY3WNJ434</lei>
        <title>WESCO International Inc</title>
        <cusip>95082P105</cusip>
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          <isin value="US95082P1057"/>
          <ticker value="WCC"/>
          <other otherDesc="SEDOL" value="2416973"/>
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        <balance>12365.0000000000</balance>
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        <curCd>USD</curCd>
        <valUSD>3579667.5000000000</valUSD>
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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>
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      <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"/>
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        <balance>7736.0000000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1967574.2400000000</valUSD>
        <pctVal>2.1298912939</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>529900MZ0RTK1BWRNF46</lei>
        <title>Zscaler Inc</title>
        <cusip>98980G102</cusip>
        <identifiers>
          <isin value="US98980G1022"/>
          <ticker value="ZS"/>
          <other otherDesc="SEDOL" value="BZ00V34"/>
        </identifiers>
        <balance>14805.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2176186.9500000000</valUSD>
        <pctVal>2.3557137232</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>ICON PLC</name>
        <lei>6354008SRQGEMC4XFI67</lei>
        <title>ICON PLC</title>
        <cusip>G4705A100</cusip>
        <identifiers>
          <isin value="IE0005711209"/>
          <ticker value="ICLR"/>
          <other otherDesc="SEDOL" value="B94G471"/>
        </identifiers>
        <balance>9428.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1019543.9200000000</valUSD>
        <pctVal>1.1036522408</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>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>38496.0000000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>5554972.8000000000</valUSD>
        <pctVal>6.0132359755</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>2026-04-28</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>
</edgarSubmission>
