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        <name>Willdan Group Inc</name>
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      <invstOrSec>
        <name>LSI Industries Inc</name>
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      <invstOrSec>
        <name>Eos Energy Enterprises Inc</name>
        <lei>N/A</lei>
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      <invstOrSec>
        <name>Fluence Energy Inc</name>
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        <name>Wolfspeed Inc</name>
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        <name>Polestar Automotive Holding UK</name>
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        <name>Ads-Tec Energy PLC</name>
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        <name>Enphase Energy Inc</name>
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        <name>Sigma Lithium Corp</name>
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        <name>EVgo Inc</name>
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        <name>Advanced Energy Industries Inc</name>
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        <name>First Solar Inc</name>
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        <name>Vicor Corp</name>
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        <name>Power Integrations Inc</name>
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        <name>XPLR Infrastructure LP</name>
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        <name>HA Sustainable Infrastructure</name>
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        <title>HA Sustainable Infrastructure Capital Inc</title>
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        <name>Aspen Aerogels Inc</name>
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        <name>Brookfield Renewable Partners</name>
        <lei>VA8DFMRI2GY8Y7V79H93</lei>
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        <name>Bloom Energy Corp</name>
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        <title>Bloom Energy Corp</title>
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        <name>Sociedad Quimica y Minera de C</name>
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        <title>Sociedad Quimica y Minera de Chile SA</title>
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        <name>American Superconductor Corp</name>
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        <name>Ameresco Inc</name>
        <lei>529900NZXZGBCBXYY327</lei>
        <title>Ameresco Inc</title>
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        <name>Itron Inc</name>
        <lei>24F6LSZD18II6ICG6S41</lei>
        <title>Itron Inc</title>
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      <invstOrSec>
        <name>ReNew Energy Global PLC</name>
        <lei>254900SL77LA2KAG7R65</lei>
        <title>ReNew Energy Global PLC</title>
        <cusip>000000000</cusip>
        <identifiers>
          <isin value="GB00BNQMPN80"/>
          <ticker value="RNW"/>
        </identifiers>
        <balance>597314.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4127439.74000000</valUSD>
        <pctVal>1.029891771684</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>IN</invCountry>
        <isRestrictedSec>N</isRestrictedSec>
        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Sunrun Inc</name>
        <lei>54930007SJ77CI66U531</lei>
        <title>Sunrun Inc</title>
        <cusip>86771W105</cusip>
        <identifiers>
          <isin value="US86771W1053"/>
          <ticker value="RUN"/>
        </identifiers>
        <balance>558725.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>4570370.50000000</valUSD>
        <pctVal>1.140413250830</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>
          <loanByFundCondition isLoanByFund="Y" loanVal="3058256.60000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Universal Display Corp</name>
        <lei>N/A</lei>
        <title>Universal Display Corp</title>
        <cusip>91347P105</cusip>
        <identifiers>
          <isin value="US91347P1057"/>
          <ticker value="OLED"/>
        </identifiers>
        <balance>102483.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>15829524.18000000</valUSD>
        <pctVal>3.949832760649</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>Allegro MicroSystems Inc</name>
        <lei>N/A</lei>
        <title>Allegro MicroSystems Inc</title>
        <cusip>01749D105</cusip>
        <identifiers>
          <isin value="US01749D1054"/>
          <ticker value="ALGM"/>
        </identifiers>
        <balance>452146.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>15458871.74000000</valUSD>
        <pctVal>3.857346395697</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>Albemarle Corp</name>
        <lei>HDBLS2Q6GV1LSKQPBS54</lei>
        <title>Albemarle Corp</title>
        <cusip>012653101</cusip>
        <identifiers>
          <isin value="US0126531013"/>
          <ticker value="ALB"/>
        </identifiers>
        <balance>263467.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>16511476.89000000</valUSD>
        <pctVal>4.119995750044</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>MP Materials Corp</name>
        <lei>89450063PHPS61USMT84</lei>
        <title>MP Materials Corp</title>
        <cusip>553368101</cusip>
        <identifiers>
          <isin value="US5533681012"/>
          <ticker value="MP"/>
        </identifiers>
        <balance>399706.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>13298218.62000000</valUSD>
        <pctVal>3.318213419827</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>Navitas Semiconductor Corp</name>
        <lei>N/A</lei>
        <title>Navitas Semiconductor Corp</title>
        <cusip>63942X106</cusip>
        <identifiers>
          <isin value="US63942X1063"/>
          <ticker value="NVTS"/>
        </identifiers>
        <balance>469465.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>3074995.75000000</valUSD>
        <pctVal>0.767282630488</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>
          <loanByFundCondition isLoanByFund="Y" loanVal="615824.45000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Acuity Inc</name>
        <lei>N/A</lei>
        <title>Acuity Inc</title>
        <cusip>00508Y102</cusip>
        <identifiers>
          <isin value="US00508Y1029"/>
          <ticker value="AYI"/>
        </identifiers>
        <balance>56527.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>16864265.18000000</valUSD>
        <pctVal>4.208024595989</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>Ballard Power Systems Inc</name>
        <lei>549300OHZ8BMF53YYS26</lei>
        <title>Ballard Power Systems Inc</title>
        <cusip>058586108</cusip>
        <identifiers>
          <isin value="CA0585861085"/>
          <ticker value="BLDP"/>
        </identifiers>
        <balance>733192.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1165775.28000000</valUSD>
        <pctVal>0.290887921843</pctVal>
        <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>
          <loanByFundCondition isLoanByFund="Y" loanVal="459104.55000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Shoals Technologies Group Inc</name>
        <lei>N/A</lei>
        <title>Shoals Technologies Group Inc</title>
        <cusip>82489W107</cusip>
        <identifiers>
          <isin value="US82489W1071"/>
          <ticker value="SHLS"/>
        </identifiers>
        <balance>408798.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1737391.50000000</valUSD>
        <pctVal>0.433519402525</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>EnerSys</name>
        <lei>7ZS3DE5PN30BYUJFWP05</lei>
        <title>EnerSys</title>
        <cusip>29275Y102</cusip>
        <identifiers>
          <isin value="US29275Y1029"/>
          <ticker value="ENS"/>
        </identifiers>
        <balance>95848.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>8220882.96000000</valUSD>
        <pctVal>2.051300624557</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>Gevo Inc</name>
        <lei>549300IV6EW4O1OJD686</lei>
        <title>Gevo Inc</title>
        <cusip>374396406</cusip>
        <identifiers>
          <isin value="US3743964062"/>
          <ticker value="GEVO"/>
        </identifiers>
        <balance>585812.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>773271.84000000</valUSD>
        <pctVal>0.192949226507</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>
          <loanByFundCondition isLoanByFund="Y" loanVal="660000.00000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Clean Energy Fuels Corp</name>
        <lei>549300MTQB4VUAOPMF71</lei>
        <title>Clean Energy Fuels Corp</title>
        <cusip>184499101</cusip>
        <identifiers>
          <isin value="US1844991018"/>
          <ticker value="CLNE"/>
        </identifiers>
        <balance>540374.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1053729.30000000</valUSD>
        <pctVal>0.262929855797</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>Array Technologies Inc</name>
        <lei>549300JM5FECYJQ85V37</lei>
        <title>Array Technologies Inc</title>
        <cusip>04271T100</cusip>
        <identifiers>
          <isin value="US04271T1007"/>
          <ticker value="ARRY"/>
        </identifiers>
        <balance>373028.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>2200865.20000000</valUSD>
        <pctVal>0.549166820801</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>Ormat Technologies Inc</name>
        <lei>5493000TSHHWY24VHM09</lei>
        <title>Ormat Technologies Inc</title>
        <cusip>686688102</cusip>
        <identifiers>
          <isin value="US6866881021"/>
          <ticker value="ORA"/>
        </identifiers>
        <balance>148341.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>12425042.16000000</valUSD>
        <pctVal>3.100335677684</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>Clearway Energy Inc</name>
        <lei>549300LHAZ9HA9G3XC48</lei>
        <title>Clearway Energy Inc</title>
        <cusip>18539C204</cusip>
        <identifiers>
          <isin value="US18539C2044"/>
          <ticker value="CWEN"/>
        </identifiers>
        <balance>203592.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>6514944.00000000</valUSD>
        <pctVal>1.625629358936</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>Tesla Inc</name>
        <lei>54930043XZGB27CTOV49</lei>
        <title>Tesla Inc</title>
        <cusip>88160R101</cusip>
        <identifiers>
          <isin value="US88160R1014"/>
          <ticker value="TSLA"/>
        </identifiers>
        <balance>84806.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>26939473.96000000</valUSD>
        <pctVal>6.722022443120</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>Dreyfus Government Cash Management</name>
        <lei>5493000Q69I5Q3QZIA91</lei>
        <title>Dreyfus Government Cash Management</title>
        <cusip>262006208</cusip>
        <identifiers>
          <isin value="US2620062081"/>
          <ticker value="MISXX"/>
        </identifiers>
        <balance>637076.09000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>637076.09000000</valUSD>
        <pctVal>0.158965233742</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>ON Semiconductor Corp</name>
        <lei>ZV20P4CNJVT8V1ZGJ064</lei>
        <title>ON Semiconductor Corp</title>
        <cusip>682189105</cusip>
        <identifiers>
          <isin value="US6821891057"/>
          <ticker value="ON"/>
        </identifiers>
        <balance>699235.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>36646906.35000000</valUSD>
        <pctVal>9.144251566359</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>NEXTracker Inc</name>
        <lei>N/A</lei>
        <title>NEXTracker Inc</title>
        <cusip>65290E101</cusip>
        <identifiers>
          <isin value="US65290E1010"/>
          <ticker value="NXT"/>
        </identifiers>
        <balance>339854.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>18477861.98000000</valUSD>
        <pctVal>4.610654354827</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>Rivian Automotive Inc</name>
        <lei>25490004LNKJ84MFYY24</lei>
        <title>Rivian Automotive Inc</title>
        <cusip>76954A103</cusip>
        <identifiers>
          <isin value="US76954A1034"/>
          <ticker value="RIVN"/>
        </identifiers>
        <balance>2022149.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>27784327.26000000</valUSD>
        <pctVal>6.932832901118</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>
          <loanByFundCondition isLoanByFund="Y" loanVal="8846237.94000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Montauk Renewables Inc</name>
        <lei>N/A</lei>
        <title>Montauk Renewables Inc</title>
        <cusip>61218C103</cusip>
        <identifiers>
          <isin value="US61218C1036"/>
          <ticker value="MNTK"/>
        </identifiers>
        <balance>348300.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>773226.00000000</valUSD>
        <pctVal>0.192937788366</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>
    <explntrNotes>
      <explntrNote note="Monthly returns presented in Item B.5(a) have been calculated without deducting any applicable sales loads or redemption fees." noteItem="B.5.a"/>
    </explntrNotes>
    <signature>
      <ncom:dateSigned>2025-08-25</ncom:dateSigned>
      <ncom:nameOfApplicant>First Trust Exchange-Traded Fund</ncom:nameOfApplicant>
      <ncom:signature>Derek Maltbie</ncom:signature>
      <ncom:signerName>Derek Maltbie</ncom:signerName>
      <ncom:title>Treasurer, Chief Financial Officer and Chief Accounting Officer</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
