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      <regStreet1>702 King Farm Blvd., Suite 200</regStreet1>
      <regCity>Rockville</regCity>
      <regStateConditional regCountry="US" regState="US-MD"/>
      <regZipOrPostalCode>20850</regZipOrPostalCode>
      <regPhone>301-296-5100</regPhone>
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      <repPdEnd>2021-03-31</repPdEnd>
      <repPdDate>2020-12-31</repPdDate>
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      <invstOrSec>
        <name>SolarEdge Technologies Inc</name>
        <lei>5493000K6Y58XXPDF853</lei>
        <title>SolarEdge Technologies, Inc.</title>
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          <isin value="US83417M1045"/>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Universal Display Corp</name>
        <lei>N/A</lei>
        <title>Universal Display Corp.</title>
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          <isin value="US91347P1057"/>
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        <curCd>USD</curCd>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Maxim Integrated Products, Inc.</name>
        <lei>SO0H5YEO14Y4PVKQH532</lei>
        <title>Maxim Integrated Products, Inc.</title>
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          <isin value="US57772K1016"/>
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        <curCd>USD</curCd>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>NXP Semiconductors NV</name>
        <lei>724500M9BY5293JDF951</lei>
        <title>NXP Semiconductor N.V.</title>
        <cusip>N/A</cusip>
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          <isin value="NL0009538784"/>
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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>Cree Inc</name>
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        <title>Cree, Inc.</title>
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          <isin value="US2254471012"/>
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        <curCd>USD</curCd>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>First American Funds</name>
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          <ticker value="FGZXX"/>
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        <curCd>USD</curCd>
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        <assetCat>STIV</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <cashCollateralCondition cashCollateralVal="291535.22000000" isCashCollateral="Y"/>
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      <invstOrSec>
        <name>BARCLAYS CAPITAL INC.</name>
        <lei>AC28XWWI3WIBK2824319</lei>
        <title>Barclays Capital, Inc.</title>
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        <invCountry>US</invCountry>
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        <fairValLevel>2</fairValLevel>
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          <transCat>Repurchase</transCat>
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              <invstCat>UST</invstCat>
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        <securityLending>
          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Lam Research Corp</name>
        <lei>549300I4GMO6D34U1T02</lei>
        <title>Lam Research Corp.</title>
        <cusip>512807108</cusip>
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          <isin value="US5128071082"/>
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        <balance>3327.00000000</balance>
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        <curCd>USD</curCd>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Xilinx Inc</name>
        <lei>6EY4K7ZMF9UX1CU6KC79</lei>
        <title>Xilinx, Inc.</title>
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          <isin value="US9839191015"/>
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        <balance>7558.00000000</balance>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Entegris Inc</name>
        <lei>IYX6OWO7BT5DKO3BYG52</lei>
        <title>Entegris, Inc.</title>
        <cusip>29362U104</cusip>
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          <isin value="US29362U1043"/>
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        <balance>7135.00000000</balance>
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        <curCd>USD</curCd>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Advanced Micro Devices Inc</name>
        <lei>R2I72C950HOYXII45366</lei>
        <title>Advanced Micro Devices, Inc.</title>
        <cusip>007903107</cusip>
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          <isin value="US0079031078"/>
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        <curCd>USD</curCd>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Broadcom Inc</name>
        <lei>549300WV6GIDOZJTV909</lei>
        <title>Broadcom, Inc.</title>
        <cusip>11135F101</cusip>
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          <isin value="US11135F1012"/>
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        <balance>5775.00000000</balance>
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        <curCd>USD</curCd>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>First Solar Inc</name>
        <lei>549300NPYMLM4NHTOF27</lei>
        <title>First Solar, Inc.</title>
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          <isin value="US3364331070"/>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Teradyne Inc</name>
        <lei>C3X4YJ278QNZHRJULN75</lei>
        <title>Teradyne, Inc.</title>
        <cusip>880770102</cusip>
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          <isin value="US8807701029"/>
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        <balance>7013.00000000</balance>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>ON Semiconductor Corp</name>
        <lei>ZV20P4CNJVT8V1ZGJ064</lei>
        <title>ON Semiconductor Corp.</title>
        <cusip>682189105</cusip>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>KLA Corp</name>
        <lei>549300H0BF5JCG96TJ81</lei>
        <title>KLA Corp.</title>
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        <balance>4686.00000000</balance>
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        <curCd>USD</curCd>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>Lattice Semiconductor Corp</name>
        <lei>549300LRBBPZDQ2II567</lei>
        <title>Lattice Semiconductor Corp.</title>
        <cusip>518415104</cusip>
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          <isin value="US5184151042"/>
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        <balance>10371.00000000</balance>
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        <curCd>USD</curCd>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Intel Corp</name>
        <lei>KNX4USFCNGPY45LOCE31</lei>
        <title>Intel Corp.</title>
        <cusip>458140100</cusip>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>MKS Instruments Inc</name>
        <lei>549300KEQATBHAGVF505</lei>
        <title>MKS Instruments, Inc.</title>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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          <isCashCollateral>N</isCashCollateral>
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      <invstOrSec>
        <name>CMC Materials Inc</name>
        <lei>31F6V1MN00ZW3XWB4J69</lei>
        <title>CMC Materials, Inc.</title>
        <cusip>12571T100</cusip>
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        <curCd>USD</curCd>
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        <assetCat>EC</assetCat>
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        <invCountry>US</invCountry>
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        <fairValLevel>1</fairValLevel>
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        <name>NVIDIA Corp</name>
        <lei>549300S4KLFTLO7GSQ80</lei>
        <title>NVIDIA Corp.</title>
        <cusip>67066G104</cusip>
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        <balance>6545.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>3417799.00000000</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>Applied Materials Inc</name>
        <lei>41BNNE1AFPNAZELZ6K07</lei>
        <title>Applied Materials, Inc.</title>
        <cusip>038222105</cusip>
        <identifiers>
          <isin value="US0382221051"/>
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        <balance>19626.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>1693723.80000000</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>ASML Holding NV</name>
        <lei>724500Y6DUVHQD6OXN27</lei>
        <title>ASML Holding N.V.</title>
        <cusip>N/A</cusip>
        <identifiers>
          <isin value="USN070592100"/>
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        <balance>1859.00000000</balance>
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        <curCd>USD</curCd>
        <valUSD>906671.48000000</valUSD>
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        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>NL</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Analog Devices Inc</name>
        <lei>GYVOE5EZ4GDAVTU4CQ61</lei>
        <title>Analog Devices, Inc.</title>
        <cusip>032654105</cusip>
        <identifiers>
          <isin value="US0326541051"/>
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        <balance>9674.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1429140.02000000</valUSD>
        <pctVal>3.114218620622</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>Inphi Corp</name>
        <lei>549300DCMERAAZFGT726</lei>
        <title>Inphi Corp.</title>
        <cusip>45772F107</cusip>
        <identifiers>
          <isin value="US45772F1075"/>
        </identifiers>
        <balance>3372.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>541104.84000000</valUSD>
        <pctVal>1.179113834092</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>STMicroelectronics NV</name>
        <lei>213800Z8NOHIKRI42W10</lei>
        <title>STMicroelectronics N.V.</title>
        <cusip>861012102</cusip>
        <identifiers>
          <isin value="US8610121027"/>
        </identifiers>
        <balance>18325.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>680224.00000000</valUSD>
        <pctVal>1.482266410112</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>NL</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Marvell Technology Group Ltd.</name>
        <lei>8DF36O58U3QIHUCGZB18</lei>
        <title>Marvell Technology Group Ltd.</title>
        <cusip>N/A</cusip>
        <identifiers>
          <isin value="BMG5876H1051"/>
        </identifiers>
        <balance>21854.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1038939.16000000</valUSD>
        <pctVal>2.263937495617</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>Synaptics Inc</name>
        <lei>549300AJ3LI4FWNRQX29</lei>
        <title>Synaptics, Inc.</title>
        <cusip>87157D109</cusip>
        <identifiers>
          <isin value="US87157D1090"/>
        </identifiers>
        <balance>3903.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>376249.20000000</valUSD>
        <pctVal>0.819879261819</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>2021-02-01</ncom:dateSigned>
      <ncom:nameOfApplicant>Rydex Series Funds</ncom:nameOfApplicant>
      <ncom:signature>John Sullivan</ncom:signature>
      <ncom:signerName>John Sullivan</ncom:signerName>
      <ncom:title>CFO</ncom:title>
    </signature>
  </formData>
  <documents>XXXX</documents>
</edgarSubmission>
