<?xml version="1.0" encoding="UTF-8"?><edgarSubmission xmlns="http://www.sec.gov/edgar/nport" xmlns:com="http://www.sec.gov/edgar/common" xmlns:ncom="http://www.sec.gov/edgar/nportcommon" xmlns:xsi="http://www.w3.org/2001/XMLSchema-instance" xsi:schemaLocation="http://www.sec.gov/edgar/nport eis_NPORT_Filer.xsd">
  <headerData>
    <submissionType>NPORT-P</submissionType>
    <isConfidential>false</isConfidential>
    <filerInfo>

      <filer>
        <issuerCredentials>
          <cik>0000899148</cik>
          <ccc>XXXXXXXX</ccc>
        </issuerCredentials>
      </filer>


      <seriesClassInfo>
        <seriesId>S000003694</seriesId>
        <classId>C000149026</classId>
        <classId>C000010344</classId>
        <classId>C000010342</classId>
        <classId>C000010345</classId>
      </seriesClassInfo>

    </filerInfo>
  </headerData>
  <formData>
    <genInfo>
      <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>Inverse NASDAQ-100 Strategy Fund</seriesName>
      <seriesId>S000003694</seriesId>
      <seriesLei>5493001NDQKSZDPMJP48</seriesLei>
      <repPdEnd>2023-03-31</repPdEnd>
      <repPdDate>2022-09-30</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
    <fundInfo>
      <totAssets>107173280.58</totAssets>
      <totLiabs>8823736.59</totLiabs>
      <netAssets>98349543.99</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>
      <amtPayAftOneYrCtrldComp>0.00000000</amtPayAftOneYrCtrldComp>
      <amtPayAftOneYrOthAffil>0.00000000</amtPayAftOneYrOthAffil>
      <amtPayAftOneYrOther>0.00000000</amtPayAftOneYrOther>
      <delayDeliv>0.00000000</delayDeliv>
      <standByCommit>0.00000000</standByCommit>
      <liquidPref>0.00000000</liquidPref>
      <cshNotRptdInCorD>832000.00000000</cshNotRptdInCorD>
      <curMetrics>
        <curMetric>
          <curCd>USD</curCd>
          <intrstRtRiskdv01 period10Yr="25.12879192" period1Yr="49.98090311" period30Yr="2.57232766" period3Mon="726.08943568" period5Yr="80.79110865"/>
          <intrstRtRiskdv100 period10Yr="2512.87919170" period1Yr="4998.09031094" period30Yr="257.23276589" period3Mon="72608.94356770" period5Yr="8079.11086477"/>
        </curMetric>
      </curMetrics>
      <creditSprdRiskInvstGrade period10Yr="0.00000000" period1Yr="240.83635809" period30Yr="0.00000000" period3Mon="729.51728600" period5Yr="146.60992350"/>
      <creditSprdRiskNonInvstGrade period10Yr="0.00000000" period1Yr="0.00000000" period30Yr="0.00000000" period3Mon="0.00000000" period5Yr="0.00000000"/>
      <isNonCashCollateral>N</isNonCashCollateral>
      <returnInfo>
        <monthlyTotReturns>
          <monthlyTotReturn classId="C000149026" rtn1="-11.55945500" rtn2="5.05094800" rtn3="11.38760800"/>
          <monthlyTotReturn classId="C000010344" rtn1="-11.57862500" rtn2="5.06338300" rtn3="11.34194000"/>
          <monthlyTotReturn classId="C000010342" rtn1="-11.60116700" rtn2="5.11525000" rtn3="11.36813300"/>
          <monthlyTotReturn classId="C000010345" rtn1="-11.61378900" rtn2="5.01309600" rtn3="11.25637800"/>
        </monthlyTotReturns>
        <monthlyReturnCats>
          <equityContracts>
            <mon1 netRealizedGain="-2248978.74000000" netUnrealizedAppr="-4302190.04000000"/>
            <mon2 netRealizedGain="-762736.51000000" netUnrealizedAppr="2296098.92000000"/>
            <mon3 netRealizedGain="1423194.51000000" netUnrealizedAppr="7076066.16000000"/>
            <futureCategory>
              <instrMon1 netRealizedGain="-524042.53000000" netUnrealizedAppr="-360750.43000000"/>
              <instrMon2 netRealizedGain="0.00000000" netUnrealizedAppr="304665.55000000"/>
              <instrMon3 netRealizedGain="-207561.76000000" netUnrealizedAppr="807936.71000000"/>
            </futureCategory>
            <swapCategory>
              <instrMon1 netRealizedGain="-1724936.21000000" netUnrealizedAppr="-3941439.61000000"/>
              <instrMon2 netRealizedGain="-762736.51000000" netUnrealizedAppr="1991433.37000000"/>
              <instrMon3 netRealizedGain="1630756.27000000" netUnrealizedAppr="6268129.45000000"/>
            </swapCategory>
          </equityContracts>
        </monthlyReturnCats>
        <othMon1 netRealizedGain="-0.01000000" netUnrealizedAppr="7923.85000000"/>
        <othMon2 netRealizedGain="0.00000000" netUnrealizedAppr="-1376.55000000"/>
        <othMon3 netRealizedGain="2.61000000" netUnrealizedAppr="-14522.48000000"/>
      </returnInfo>
      <mon1Flow redemption="70933592.68000000" reinvestment="0.00000000" sales="74119124.80000000"/>
      <mon2Flow redemption="21845204.67000000" reinvestment="0.00000000" sales="20053560.41000000"/>
      <mon3Flow redemption="27472471.64000000" reinvestment="0.00000000" sales="79994173.53000000"/>


      <varInfo>

        <fundsDesignatedInfo>
          <nameDesignatedIndex>NASDAQ-100 Index</nameDesignatedIndex>
          <indexIdentifier>NASDAQ100</indexIdentifier>

        </fundsDesignatedInfo>

      </varInfo>
    </fundInfo>
    <invstOrSecs>
      <invstOrSec>
        <name>Guggenheim Partners Investment Management LLC</name>
        <lei>N/A</lei>
        <title>Guggenheim Ultra Short Duration Fund - Institutional Class</title>
        <cusip>40169J523</cusip>
        <identifiers>
          <isin value="US40169J5231"/>
        </identifiers>
        <balance>87168.64700000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>835947.32000000</valUSD>
        <pctVal>0.849975796618</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</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>FED HOME LN DISCOUNT NT</name>
        <lei>2549001DPIFGXC1TOL40</lei>
        <title>Federal Home Loan Bank</title>
        <cusip>313385P42</cusip>
        <identifiers>
          <isin value="US313385P424"/>
        </identifiers>
        <balance>13900000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>13847202.44000000</valUSD>
        <pctVal>14.07957970949</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGSE</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2022-11-14</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Guggenheim Partners Investment Management LLC</name>
        <lei>N/A</lei>
        <title>Guggenheim Strategy Fund II</title>
        <cusip>N/A</cusip>
        <identifiers>
          <ticker value="GFSBX"/>
        </identifiers>
        <balance>49399.34800000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>1184102.37000000</valUSD>
        <pctVal>1.203973421697</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</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>Goldman Sachs International</name>
        <lei>W22LROWP2IHZNBB6K528</lei>
        <title>NASDAQ-100 Index</title>
        <cusip>N/A</cusip>
        <identifiers>
          <other otherDesc="Internal ID" value="GSSWAP"/>
        </identifiers>
        <balance>-2187.27070000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>2854120.99000000</valUSD>
        <pctVal>2.902017512445</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="Derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <derivativeInfo>
          <swapDeriv derivCat="SWP">
            <counterparties>
              <counterpartyName>Goldman Sachs International</counterpartyName>
              <counterpartyLei>W22LROWP2IHZNBB6K528</counterpartyLei>
            </counterparties>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>NASDAQ 100 Stock Index</indexName>
                <indexIdentifier>N/A</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <swapFlag>Y</swapFlag>
            <floatingRecDesc curCd="USD" fixedOrFloating="Floating" floatingRtIndex="FEDL01 Index" floatingRtSpread="0.25000000" pmntAmt="0.00000000">
              <rtResetTenors>
                <rtResetTenor rateTenor="Month" rateTenorUnit="6" resetDt="Day" resetDtUnit="1"/>
              </rtResetTenors>
            </floatingRecDesc>
            <otherPmntDesc fixedOrFloating="Other">NASDAQ-100 Index-Tenor Semi-Annually</otherPmntDesc>
            <terminationDt>2022-11-17</terminationDt>
            <upfrontPmnt>0.00000000</upfrontPmnt>
            <pmntCurCd>USD</pmntCurCd>
            <upfrontRcpt>0.00000000</upfrontRcpt>
            <rcptCurCd>USD</rcptCurCd>
            <notionalAmt>-23997028.05000000</notionalAmt>
            <curCd>USD</curCd>
            <unrealizedAppr>2854120.99000000</unrealizedAppr>
          </swapDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>TREASURY BILL</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Bills</title>
        <cusip>912796YP8</cusip>
        <identifiers>
          <isin value="US912796YP80"/>
        </identifiers>
        <balance>349000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>348054.65000000</valUSD>
        <pctVal>0.353895540212</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2022-11-08</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <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>2454327.95000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>2454327.95000000</valUSD>
        <pctVal>2.495515332790</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>2.91000000</repurchaseRt>
          <maturityDt>2022-10-03</maturityDt>
          <repurchaseCollaterals>
            <repurchaseCollateral>
              <principalAmt>3117190.64000000</principalAmt>
              <principalCd>USD</principalCd>
              <collateralVal>2503416.58000000</collateralVal>
              <collateralCd>USD</collateralCd>
              <invstCat>UST</invstCat>
            </repurchaseCollateral>
          </repurchaseCollaterals>
        </repurchaseAgrmt>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Barclays Bank plc</name>
        <lei>G5GSEF7VJP5I7OUK5573</lei>
        <title>NASDAQ-100 Index</title>
        <cusip>N/A</cusip>
        <identifiers>
          <other otherDesc="Internal ID" value="BRSWAP"/>
        </identifiers>
        <balance>-815.71090000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>914600.77000000</valUSD>
        <pctVal>0.929949171999</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="Derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <derivativeInfo>
          <swapDeriv derivCat="SWP">
            <counterparties>
              <counterpartyName>BARCLAYS BANK PLC</counterpartyName>
              <counterpartyLei>G5GSEF7VJP5I7OUK5573</counterpartyLei>
            </counterparties>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>NASDAQ 100 Stock Index</indexName>
                <indexIdentifier>N/A</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <swapFlag>Y</swapFlag>
            <floatingRecDesc curCd="USD" fixedOrFloating="Floating" floatingRtIndex="SOFR Index" floatingRtSpread="0.35000000" pmntAmt="0.00000000">
              <rtResetTenors>
                <rtResetTenor rateTenor="Month" rateTenorUnit="6" resetDt="Day" resetDtUnit="1"/>
              </rtResetTenors>
            </floatingRecDesc>
            <otherPmntDesc fixedOrFloating="Other">NASDAQ-100 Index-Tenor Semi-Annually</otherPmntDesc>
            <terminationDt>2022-11-16</terminationDt>
            <upfrontPmnt>0.00000000</upfrontPmnt>
            <pmntCurCd>USD</pmntCurCd>
            <upfrontRcpt>0.00000000</upfrontRcpt>
            <rcptCurCd>USD</rcptCurCd>
            <notionalAmt>-8949343.74000000</notionalAmt>
            <curCd>USD</curCd>
            <unrealizedAppr>914600.77000000</unrealizedAppr>
          </swapDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Chicago Mercantile Exchange</name>
        <lei>N/A</lei>
        <title>NASDAQ-100 Index Mini Futures Contracts</title>
        <cusip>N/A</cusip>
        <identifiers>
          <ticker value="NQZ2"/>
        </identifiers>
        <balance>-23.00000000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>754620.34000000</valUSD>
        <pctVal>0.767284025309</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="Derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <derivativeInfo>
          <futrDeriv derivCat="FUT">
            <counterparties>
              <counterpartyName>Goldman Sachs &amp; Co. LLC</counterpartyName>
              <counterpartyLei>FOR8UP27PHTHYVLBNG30</counterpartyLei>
            </counterparties>
            <payOffProf>Short</payOffProf>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>NASDAQ 100 Stock Index</indexName>
                <indexIdentifier>N/A</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <expDate>2022-12-16</expDate>
            <notionalAmt>-5828650.34000000</notionalAmt>
            <curCd>USD</curCd>
            <unrealizedAppr>754620.34000000</unrealizedAppr>
          </futrDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>FED HOME LN DISCOUNT NT</name>
        <lei>2549001DPIFGXC1TOL40</lei>
        <title>Federal Home Loan Bank</title>
        <cusip>313385N85</cusip>
        <identifiers>
          <isin value="US313385N858"/>
        </identifiers>
        <balance>5000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>4984166.66000000</valUSD>
        <pctVal>5.067808611808</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGSE</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2022-11-10</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>BNP Paribas</name>
        <lei>R0MUWSFPU8MPRO8K5P83</lei>
        <title>NASDAQ-100 Index</title>
        <cusip>N/A</cusip>
        <identifiers>
          <other otherDesc="Internal ID" value="BNPSWAP"/>
        </identifiers>
        <balance>-5644.10750000</balance>
        <units>NC</units>
        <curCd>USD</curCd>
        <valUSD>6111122.50000000</valUSD>
        <pctVal>6.213676497189</pctVal>
        <payoffProfile>N/A</payoffProfile>
        <assetCat>DE</assetCat>
        <issuerConditional desc="Derivative" issuerCat="OTHER"/>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <derivativeInfo>
          <swapDeriv derivCat="SWP">
            <counterparties>
              <counterpartyName>BNP Paribas</counterpartyName>
              <counterpartyLei>R0MUWSFPU8MPRO8K5P83</counterpartyLei>
            </counterparties>
            <descRefInstrmnt>
              <indexBasketInfo>
                <indexName>NASDAQ 100 Stock Index</indexName>
                <indexIdentifier>N/A</indexIdentifier>
              </indexBasketInfo>
            </descRefInstrmnt>
            <swapFlag>Y</swapFlag>
            <floatingRecDesc curCd="USD" fixedOrFloating="Floating" floatingRtIndex="FEDL01 Index" floatingRtSpread="0.25000000" pmntAmt="0.00000000">
              <rtResetTenors>
                <rtResetTenor rateTenor="Month" rateTenorUnit="6" resetDt="Day" resetDtUnit="1"/>
              </rtResetTenors>
            </floatingRecDesc>
            <otherPmntDesc fixedOrFloating="Other">NASDAQ-100 Index-Tenor Semi-Annually</otherPmntDesc>
            <terminationDt>2022-11-17</terminationDt>
            <upfrontPmnt>0.00000000</upfrontPmnt>
            <pmntCurCd>USD</pmntCurCd>
            <upfrontRcpt>0.00000000</upfrontRcpt>
            <rcptCurCd>USD</rcptCurCd>
            <notionalAmt>-61922745.09000000</notionalAmt>
            <curCd>USD</curCd>
            <unrealizedAppr>6111122.50000000</unrealizedAppr>
          </swapDeriv>
        </derivativeInfo>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>FED HOME LN DISCOUNT NT</name>
        <lei>2549001DPIFGXC1TOL40</lei>
        <title>Federal Home Loan Bank</title>
        <cusip>313385T48</cusip>
        <identifiers>
          <isin value="US313385T483"/>
        </identifiers>
        <balance>5200000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>5164868.80000000</valUSD>
        <pctVal>5.251543210536</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGSE</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2022-12-16</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>J.P. MORGAN SECURITIES LLC</name>
        <lei>ZBUT11V806EZRVTWT807</lei>
        <title>J.P. Morgan Securities LLC</title>
        <cusip>N/A</cusip>
        <identifiers>
          <other otherDesc="Internal ID" value="REPO-JP M"/>
        </identifiers>
        <balance>6381252.65000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>6381252.65000000</valUSD>
        <pctVal>6.488339844919</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="ZBUT11V806EZRVTWT807" name="J.P. MORGAN SECURITIES LLC"/>
            </counterpartyInfos>
          </notClearedCentCparty>
          <isTriParty>Y</isTriParty>
          <repurchaseRt>2.97000000</repurchaseRt>
          <maturityDt>2022-10-03</maturityDt>
          <repurchaseCollaterals>
            <repurchaseCollateral>
              <principalAmt>7391039.01000000</principalAmt>
              <principalCd>USD</principalCd>
              <collateralVal>6508878.20000000</collateralVal>
              <collateralCd>USD</collateralCd>
              <invstCat>UST</invstCat>
            </repurchaseCollateral>
          </repurchaseCollaterals>
        </repurchaseAgrmt>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>FREDDIE MAC DISCOUNT NT</name>
        <lei>S6XOOCT0IEG5ABCC6L87</lei>
        <title>Freddie Mac</title>
        <cusip>313397J28</cusip>
        <identifiers>
          <isin value="US313397J281"/>
        </identifiers>
        <balance>29000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>28996326.67000000</valUSD>
        <pctVal>29.48292945104</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGSE</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2022-10-03</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>FED HOME LN DISCOUNT NT</name>
        <lei>2549001DPIFGXC1TOL40</lei>
        <title>Federal Home Loan Bank</title>
        <cusip>313385P59</cusip>
        <identifiers>
          <isin value="US313385P598"/>
        </identifiers>
        <balance>5700000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>5679212.10000000</valUSD>
        <pctVal>5.774517979033</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGSE</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2022-11-15</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>FED HOME LN DISCOUNT NT</name>
        <lei>2549001DPIFGXC1TOL40</lei>
        <title>Federal Home Loan Bank</title>
        <cusip>313385N28</cusip>
        <identifiers>
          <isin value="US313385N288"/>
        </identifiers>
        <balance>3450000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>3440746.34000000</valUSD>
        <pctVal>3.498487334470</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGSE</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2022-11-04</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>FED HOME LN DISCOUNT NT</name>
        <lei>2549001DPIFGXC1TOL40</lei>
        <title>Federal Home Loan Bank</title>
        <cusip>313385R57</cusip>
        <identifiers>
          <isin value="US313385R578"/>
        </identifiers>
        <balance>5200000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>5172856.00000000</valUSD>
        <pctVal>5.259664447987</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGSE</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2022-12-01</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>FED HOME LN DISCOUNT NT</name>
        <lei>2549001DPIFGXC1TOL40</lei>
        <title>Federal Home Loan Bank</title>
        <cusip>313385M78</cusip>
        <identifiers>
          <isin value="US313385M785"/>
        </identifiers>
        <balance>10000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>9974166.67000000</valUSD>
        <pctVal>10.14154846616</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGSE</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2022-11-01</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>BARCLAYS CAPITAL INC.</name>
        <lei>AC28XWWI3WIBK2824319</lei>
        <title>Barclays Capital, Inc.</title>
        <cusip>N/A</cusip>
        <identifiers>
          <other otherDesc="Internal ID" value="REPO-BARC"/>
        </identifiers>
        <balance>2381681.76000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>2381681.76000000</valUSD>
        <pctVal>2.421650028435</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="AC28XWWI3WIBK2824319" name="BARCLAYS CAPITAL INC."/>
            </counterpartyInfos>
          </notClearedCentCparty>
          <isTriParty>Y</isTriParty>
          <repurchaseRt>2.92000000</repurchaseRt>
          <maturityDt>2022-10-03</maturityDt>
          <repurchaseCollaterals>
            <repurchaseCollateral>
              <principalAmt>2308814.99000000</principalAmt>
              <principalCd>USD</principalCd>
              <collateralVal>2429316.90000000</collateralVal>
              <collateralCd>USD</collateralCd>
              <invstCat>UST</invstCat>
            </repurchaseCollateral>
          </repurchaseCollaterals>
        </repurchaseAgrmt>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>FED HOME LN DISCOUNT NT</name>
        <lei>2549001DPIFGXC1TOL40</lei>
        <title>Federal Home Loan Bank</title>
        <cusip>313385R99</cusip>
        <identifiers>
          <isin value="US313385R990"/>
        </identifiers>
        <balance>5000000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>4971955.00000000</valUSD>
        <pctVal>5.055392021447</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>USGSE</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2022-12-05</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>TREASURY BILL</name>
        <lei>254900HROIFWPRGM1V77</lei>
        <title>U.S. Treasury Bills</title>
        <cusip>912796YC7</cusip>
        <identifiers>
          <isin value="US912796YC77"/>
        </identifiers>
        <balance>160000.00000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>159989.26000000</valUSD>
        <pctVal>0.162674124870</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>DBT</assetCat>
        <issuerCat>UST</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>2</fairValLevel>
        <debtSec>
          <maturityDt>2022-10-04</maturityDt>
          <couponKind>None</couponKind>
          <annualizedRt>0.00000000</annualizedRt>
          <isDefault>N</isDefault>
          <areIntrstPmntsInArrs>N</areIntrstPmntsInArrs>
          <isPaidKind>N</isPaidKind>
        </debtSec>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
    </invstOrSecs>
    <signature>
      <ncom:dateSigned>2022-10-31</ncom:dateSigned>
      <ncom:nameOfApplicant>Rydex Series Funds</ncom:nameOfApplicant>
      <ncom:signature>Jim Howley</ncom:signature>
      <ncom:signerName>Jim Howley</ncom:signerName>
      <ncom:title>CFO</ncom:title>
    </signature>
  </formData>
</edgarSubmission>
