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    <filerInfo>

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          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>


      <seriesClassInfo>
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        <classId>C000010583</classId>
        <classId>C000010585</classId>
        <classId>C000010584</classId>
        <classId>C000010582</classId>
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      <regName>Rydex Series Funds</regName>
      <regFileNumber>811-07584</regFileNumber>
      <regCik>0000899148</regCik>
      <regLei>5493004D62WV1EDNTU07</regLei>
      <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>
      <seriesName>Telecommunications Fund</seriesName>
      <seriesId>S000003799</seriesId>
      <seriesLei>549300N6G4LRE5IXJH81</seriesLei>
      <repPdEnd>2021-03-31</repPdEnd>
      <repPdDate>2020-09-30</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
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      <totLiabs>12011.95</totLiabs>
      <netAssets>5733854.40</netAssets>
      <assetsAttrMiscSec>0.00000000</assetsAttrMiscSec>
      <assetsInvested>0.00000000</assetsInvested>
      <amtPayOneYrBanksBorr>0.00000000</amtPayOneYrBanksBorr>
      <amtPayOneYrCtrldComp>0.00000000</amtPayOneYrCtrldComp>
      <amtPayOneYrOthAffil>0.00000000</amtPayOneYrOthAffil>
      <amtPayOneYrOther>0.00000000</amtPayOneYrOther>
      <amtPayAftOneYrBanksBorr>0.00000000</amtPayAftOneYrBanksBorr>
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      <amtPayAftOneYrOthAffil>0.00000000</amtPayAftOneYrOthAffil>
      <amtPayAftOneYrOther>0.00000000</amtPayAftOneYrOther>
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      <standByCommit>0.00000000</standByCommit>
      <liquidPref>0.00000000</liquidPref>
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        <othMon2 netRealizedGain="52168.29000000" netUnrealizedAppr="-62399.28000000"/>
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        <fairValLevel>2</fairValLevel>
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          <maturityDt>2020-10-01</maturityDt>
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        <name>Rogers Communications Inc</name>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>GCI Liberty Inc</name>
        <lei>N/A</lei>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>AT&amp;T Inc</name>
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        <title>AT&amp;T, Inc.</title>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Verizon Communications Inc</name>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Vodafone Group PLC</name>
        <lei>213800TB53ELEUKM7Q61</lei>
        <title>Vodafone Group plc</title>
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        <invCountry>GB</invCountry>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Acacia Communications Inc</name>
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        <title>Acacia Communications, Inc.</title>
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        <fairValLevel>1</fairValLevel>
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        <name>Telefonica Brasil SA</name>
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        <fairValLevel>1</fairValLevel>
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        <name>Cisco Systems Inc</name>
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        <fairValLevel>1</fairValLevel>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>J.P. MORGAN SECURITIES LLC</name>
        <lei>ZBUT11V806EZRVTWT807</lei>
        <title>J.P. Morgan Securities LLC</title>
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        <fairValLevel>2</fairValLevel>
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      <invstOrSec>
        <name>Plantronics Inc</name>
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        <title>Plantronics, Inc.</title>
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        <fairValLevel>1</fairValLevel>
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        <name>Juniper Networks Inc</name>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>T-Mobile US Inc</name>
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        <fairValLevel>1</fairValLevel>
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        <name>Motorola Solutions Inc</name>
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        <title>Motorola Solutions, Inc.</title>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Telephone &amp; Data Systems Inc</name>
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        <name>Liberty Global PLC</name>
        <lei>549300BSGXG3QLIQYT84</lei>
        <title>Liberty Global plc</title>
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        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
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        <name>Boingo Wireless Inc</name>
        <lei>54930058LPWPZZCRMC04</lei>
        <title>Boingo Wireless, Inc.</title>
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        <fairValLevel>1</fairValLevel>
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      <invstOrSec>
        <name>Shenandoah Telecommunications</name>
        <lei>549300XH3H4OUKFPHS84</lei>
        <title>Shenandoah Telecommunications Co.</title>
        <cusip>82312B106</cusip>
        <identifiers>
          <isin value="US82312B1061"/>
        </identifiers>
        <balance>1679.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>74606.37000000</valUSD>
        <pctVal>1.301155641482</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>InterDigital Inc</name>
        <lei>N/A</lei>
        <title>InterDigital, Inc.</title>
        <cusip>45867G101</cusip>
        <identifiers>
          <isin value="US45867G1013"/>
        </identifiers>
        <balance>1174.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>66988.44000000</valUSD>
        <pctVal>1.168296844091</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>NetScout Systems Inc</name>
        <lei>5493005HZXZ3SPNVCV76</lei>
        <title>NetScout Systems, Inc.</title>
        <cusip>64115T104</cusip>
        <identifiers>
          <isin value="US64115T1043"/>
        </identifiers>
        <balance>2894.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>63176.02000000</valUSD>
        <pctVal>1.101807189244</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>Viavi Solutions Inc</name>
        <lei>5493006K3E3N1QOBF092</lei>
        <title>Viavi Solutions, Inc.</title>
        <cusip>925550105</cusip>
        <identifiers>
          <isin value="US9255501051"/>
        </identifiers>
        <balance>6984.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>81922.32000000</valUSD>
        <pctVal>1.428747824500</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>Lumentum Holdings Inc</name>
        <lei>549300JLWRRC38DWEF52</lei>
        <title>Lumentum Holdings, Inc.</title>
        <cusip>55024U109</cusip>
        <identifiers>
          <isin value="US55024U1097"/>
        </identifiers>
        <balance>1676.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>125917.88000000</valUSD>
        <pctVal>2.196042508508</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>NETGEAR Inc</name>
        <lei>54930067KX3UNRHDWA78</lei>
        <title>NETGEAR, Inc.</title>
        <cusip>64111Q104</cusip>
        <identifiers>
          <isin value="US64111Q1040"/>
        </identifiers>
        <balance>1649.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>50822.18000000</valUSD>
        <pctVal>0.886352817050</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>China Mobile Ltd</name>
        <lei>529900U2JJ7GK68NI589</lei>
        <title>China Mobile Ltd.</title>
        <cusip>16941M109</cusip>
        <identifiers>
          <isin value="US16941M1099"/>
        </identifiers>
        <balance>2446.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>78663.36000000</valUSD>
        <pctVal>1.371910664491</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>HK</invCountry>

        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Vonage Holdings Corp</name>
        <lei>529900W7N0N4WLN1JY21</lei>
        <title>Vonage Holdings Corp.</title>
        <cusip>92886T201</cusip>
        <identifiers>
          <isin value="US92886T2015"/>
        </identifiers>
        <balance>8005.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>81891.15000000</valUSD>
        <pctVal>1.428204211114</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>F5 Networks Inc</name>
        <lei>N/A</lei>
        <title>F5 Networks, Inc.</title>
        <cusip>315616102</cusip>
        <identifiers>
          <isin value="US3156161024"/>
        </identifiers>
        <balance>1144.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>140448.88000000</valUSD>
        <pctVal>2.449467150752</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>America Movil SAB de CV</name>
        <lei>5493000FNR3UCEAONM59</lei>
        <title>America Movil SAB de CV</title>
        <cusip>02364W105</cusip>
        <identifiers>
          <isin value="US02364W1053"/>
        </identifiers>
        <balance>6578.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>82159.22000000</valUSD>
        <pctVal>1.432879425748</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>MX</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>ViaSat Inc</name>
        <lei>UFC8NYMNFSYIHNSM2I38</lei>
        <title>ViaSat, Inc.</title>
        <cusip>92552V100</cusip>
        <identifiers>
          <isin value="US92552V1008"/>
        </identifiers>
        <balance>2236.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>76896.04000000</valUSD>
        <pctVal>1.341088116921</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>Cogent Communications Holdings</name>
        <lei>N/A</lei>
        <title>Cogent Communications Holdings, Inc.</title>
        <cusip>19239V302</cusip>
        <identifiers>
          <isin value="US19239V3024"/>
        </identifiers>
        <balance>1429.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>85811.45000000</valUSD>
        <pctVal>1.496575322875</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>BOFA SECURITIES, INC.</name>
        <lei>549300HN4UKV1E2R3U73</lei>
        <title>BofA Securities, Inc.</title>
        <cusip>N/A</cusip>
        <identifiers>
          <other otherDesc="Internal ID" value="REPO-BANK"/>
        </identifiers>
        <balance>6289.82000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>6289.82000000</valUSD>
        <pctVal>0.109696193192</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>RA</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <repurchaseAgrmt>
          <transCat>Repurchase</transCat>
          <notClearedCentCparty isCleared="N">
            <counterpartyInfos>
              <counterpartyInfo lei="549300HN4UKV1E2R3U73" name="BOFA SECURITIES, INC."/>
            </counterpartyInfos>
          </notClearedCentCparty>
          <isTriParty>Y</isTriParty>
          <repurchaseRt>0.06000000</repurchaseRt>
          <maturityDt>2020-10-01</maturityDt>
          <repurchaseCollaterals>
            <repurchaseCollateral>
              <principalAmt>5678.18000000</principalAmt>
              <principalCd>USD</principalCd>
              <collateralVal>6415.63000000</collateralVal>
              <collateralCd>USD</collateralCd>
              <invstCat>UST</invstCat>
            </repurchaseCollateral>
          </repurchaseCollaterals>
        </repurchaseAgrmt>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Iridium Communications Inc</name>
        <lei>549300U620NVQ4J1CT96</lei>
        <title>Iridium Communications, Inc.</title>
        <cusip>46269C102</cusip>
        <identifiers>
          <isin value="US46269C1027"/>
        </identifiers>
        <balance>3549.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>90783.42000000</valUSD>
        <pctVal>1.583287849095</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>TELUS Corp</name>
        <lei>L2TEUTQ8OSHMJWVLCE40</lei>
        <title>TELUS Corp.</title>
        <cusip>87971M103</cusip>
        <identifiers>
          <isin value="CA87971M1032"/>
        </identifiers>
        <balance>3936.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>69312.96000000</valUSD>
        <pctVal>1.208837113129</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>Arista Networks Inc</name>
        <lei>635400H1WKBLOQERUU95</lei>
        <title>Arista Networks, Inc.</title>
        <cusip>040413106</cusip>
        <identifiers>
          <isin value="US0404131064"/>
        </identifiers>
        <balance>1002.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>207343.86000000</valUSD>
        <pctVal>3.616134026702</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>Bandwidth Inc</name>
        <lei>549300QC70JB7MUGXM66</lei>
        <title>Bandwidth, Inc.</title>
        <cusip>05988J103</cusip>
        <identifiers>
          <isin value="US05988J1034"/>
        </identifiers>
        <balance>640.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>111724.80000000</valUSD>
        <pctVal>1.948511284137</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>Ubiquiti Inc</name>
        <lei>N/A</lei>
        <title>Ubiquiti, Inc.</title>
        <cusip>90353W103</cusip>
        <identifiers>
          <isin value="US90353W1036"/>
        </identifiers>
        <balance>1046.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>174326.36000000</valUSD>
        <pctVal>3.040299732759</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>Ciena Corp</name>
        <lei>W0CZ7N0GH8UIGXDM1H41</lei>
        <title>Ciena Corp.</title>
        <cusip>171779309</cusip>
        <identifiers>
          <isin value="US1717793095"/>
        </identifiers>
        <balance>3154.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>125182.26000000</valUSD>
        <pctVal>2.183213093098</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>BCE Inc</name>
        <lei>5493001I9203PRB5KR45</lei>
        <title>BCE, Inc.</title>
        <cusip>05534B760</cusip>
        <identifiers>
          <isin value="CA05534B7604"/>
        </identifiers>
        <balance>1854.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>76885.38000000</valUSD>
        <pctVal>1.340902203585</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>CenturyLink Inc</name>
        <lei>8M3THTGWLTYZVE6BBY25</lei>
        <title>CenturyLink, Inc.</title>
        <cusip>156700106</cusip>
        <identifiers>
          <isin value="US1567001060"/>
        </identifiers>
        <balance>16205.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>163508.45000000</valUSD>
        <pctVal>2.851632402803</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>CommScope Holding Co Inc</name>
        <lei>254900AW4CEPCQWSRI58</lei>
        <title>CommScope Holding Company, Inc.</title>
        <cusip>20337X109</cusip>
        <identifiers>
          <isin value="US20337X1090"/>
        </identifiers>
        <balance>7237.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>65133.00000000</valUSD>
        <pctVal>1.135937459451</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>Cincinnati Bell Inc</name>
        <lei>549300JYVZOCUJOHL272</lei>
        <title>Cincinnati Bell, Inc.</title>
        <cusip>171871502</cusip>
        <identifiers>
          <isin value="US1718715022"/>
        </identifiers>
        <balance>2974.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>44610.00000000</valUSD>
        <pctVal>0.778010686842</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>2020-10-30</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>
</edgarSubmission>
