<?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>S000003799</seriesId>
        <classId>C000010584</classId>
        <classId>C000010585</classId>
        <classId>C000010583</classId>
        <classId>C000010582</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>Telecommunications Fund</seriesName>
      <seriesId>S000003799</seriesId>
      <seriesLei>549300N6G4LRE5IXJH81</seriesLei>
      <repPdEnd>2020-03-31</repPdEnd>
      <repPdDate>2020-03-31</repPdDate>
      <isFinalFiling>N</isFinalFiling>
    </genInfo>
    <fundInfo>
      <totAssets>3697044.65</totAssets>
      <totLiabs>12415.50</totLiabs>
      <netAssets>3684629.15</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>0.00000000</cshNotRptdInCorD>
      <borrowers>
        <borrower aggrVal="50260.90000000" lei="58PU97L1C0WSRCWADL48" name="JEFFERIES &amp; COMPANY INC"/>
      </borrowers>
      <isNonCashCollateral>N</isNonCashCollateral>
      <returnInfo>
        <monthlyTotReturns>
          <monthlyTotReturn classId="C000010582" rtn1="-1.74062600" rtn2="-2.86313300" rtn3="-8.41819600"/>
          <monthlyTotReturn classId="C000010584" rtn1="-1.77405300" rtn2="-2.86665900" rtn3="-8.43597600"/>
          <monthlyTotReturn classId="C000010585" rtn1="-1.82111400" rtn2="-2.93669600" rtn3="-8.49249300"/>
          <monthlyTotReturn classId="C000010583" rtn1="-1.77582800" rtn2="-2.87454300" rtn3="-8.44887300"/>
        </monthlyTotReturns>
        <othMon1 netRealizedGain="-3751.75000000" netUnrealizedAppr="-98387.47000000"/>
        <othMon2 netRealizedGain="7762.05000000" netUnrealizedAppr="-118988.99000000"/>
        <othMon3 netRealizedGain="-493213.90000000" netUnrealizedAppr="-261985.89000000"/>
      </returnInfo>
      <mon1Flow redemption="359663.36000000" reinvestment="0.00000000" sales="1078469.40000000"/>
      <mon2Flow redemption="535589.19000000" reinvestment="0.00000000" sales="333923.71000000"/>
      <mon3Flow redemption="2081891.19000000" reinvestment="0.00000000" sales="2336925.63000000"/>


    </fundInfo>
    <invstOrSecs>
      <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>4034.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>47520.52000000</valUSD>
        <pctVal>1.289696142147</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>Iridium Communications Inc</name>
        <lei>549300U620NVQ4J1CT96</lei>
        <title>Iridium Communications, Inc.</title>
        <cusip>46269C102</cusip>
        <identifiers>
          <isin value="US46269C1027"/>
        </identifiers>
        <balance>2649.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>59152.17000000</valUSD>
        <pctVal>1.605376486803</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>2207.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>87860.67000000</valUSD>
        <pctVal>2.384518669945</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>1126.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>82986.20000000</valUSD>
        <pctVal>2.252226658956</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>976.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>80002.72000000</valUSD>
        <pctVal>2.171255687970</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>1500.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>56505.00000000</valUSD>
        <pctVal>1.533532892991</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>First American Funds</name>
        <lei>N/A</lei>
        <title>First American Government Obligations Fund</title>
        <cusip>N/A</cusip>
        <identifiers>
          <ticker value="FGZXX"/>
        </identifiers>
        <balance>51563.75000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>51563.75000000</valUSD>
        <pctVal>1.399428487938</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>STIV</assetCat>
        <issuerCat>RF</issuerCat>
        <invCountry>US</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <securityLending>
          <cashCollateralCondition cashCollateralVal="51563.75000000" isCashCollateral="Y"/>
          <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>700.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>141785.00000000</valUSD>
        <pctVal>3.848012764052</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>Boingo Wireless Inc</name>
        <lei>54930058LPWPZZCRMC04</lei>
        <title>Boingo Wireless, Inc.</title>
        <cusip>09739C102</cusip>
        <identifiers>
          <isin value="US09739C1027"/>
        </identifiers>
        <balance>2283.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>24222.63000000</valUSD>
        <pctVal>0.657396688076</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>Telephone &amp; Data Systems Inc</name>
        <lei>N/A</lei>
        <title>Telephone &amp; Data Systems, Inc.</title>
        <cusip>879433829</cusip>
        <identifiers>
          <isin value="US8794338298"/>
        </identifiers>
        <balance>2457.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>41179.32000000</valUSD>
        <pctVal>1.117597411397</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>2844.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>44878.32000000</valUSD>
        <pctVal>1.217987433009</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>Verizon Communications Inc</name>
        <lei>2S72QS2UO2OESLG6Y829</lei>
        <title>Verizon Communications, Inc.</title>
        <cusip>92343V104</cusip>
        <identifiers>
          <isin value="US92343V1044"/>
        </identifiers>
        <balance>9518.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>511402.14000000</valUSD>
        <pctVal>13.87933816894</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>Shenandoah Telecommunications</name>
        <lei>549300XH3H4OUKFPHS84</lei>
        <title>Shenandoah Telecommunications Co.</title>
        <cusip>82312B106</cusip>
        <identifiers>
          <isin value="US82312B1061"/>
        </identifiers>
        <balance>1296.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>63828.00000000</valUSD>
        <pctVal>1.732277453213</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>Vonage Holdings Corp</name>
        <lei>529900W7N0N4WLN1JY21</lei>
        <title>Vonage Holdings Corp.</title>
        <cusip>92886T201</cusip>
        <identifiers>
          <isin value="US92886T2015"/>
        </identifiers>
        <balance>6503.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>47016.69000000</valUSD>
        <pctVal>1.276022310142</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>T-Mobile US Inc</name>
        <lei>549300QHIJYOHPACPG31</lei>
        <title>T-Mobile US, Inc.</title>
        <cusip>872590104</cusip>
        <identifiers>
          <isin value="US8725901040"/>
        </identifiers>
        <balance>2275.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>190872.50000000</valUSD>
        <pctVal>5.180236388240</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>Vodafone Group PLC</name>
        <lei>213800TB53ELEUKM7Q61</lei>
        <title>Vodafone Group plc</title>
        <cusip>92857W308</cusip>
        <identifiers>
          <isin value="US92857W3088"/>
        </identifiers>
        <balance>3551.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>48897.27000000</valUSD>
        <pctVal>1.327060825103</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>GB</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>1302.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>53199.72000000</valUSD>
        <pctVal>1.443828342941</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>GCI Liberty Inc</name>
        <lei>N/A</lei>
        <title>GCI Liberty, Inc.</title>
        <cusip>36164V305</cusip>
        <identifiers>
          <isin value="US36164V3050"/>
        </identifiers>
        <balance>1416.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>80669.52000000</valUSD>
        <pctVal>2.189352488838</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>670.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>94858.60000000</valUSD>
        <pctVal>2.574440904045</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="50260.90000000"/>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Rogers Communications Inc</name>
        <lei>54930030NVF3Y2OL0A78</lei>
        <title>Rogers Communications, Inc.</title>
        <cusip>775109200</cusip>
        <identifiers>
          <isin value="CA7751092007"/>
        </identifiers>
        <balance>1109.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>46056.77000000</valUSD>
        <pctVal>1.249970298910</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>10396.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>98346.16000000</valUSD>
        <pctVal>2.669092491981</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>EchoStar Corp</name>
        <lei>549300EE20907QZ9GT38</lei>
        <title>EchoStar Corp.</title>
        <cusip>278768106</cusip>
        <identifiers>
          <isin value="US2787681061"/>
        </identifiers>
        <balance>1737.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>55531.89000000</valUSD>
        <pctVal>1.507122908149</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>742.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>79119.46000000</valUSD>
        <pctVal>2.147284211763</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>5160.26000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>5160.26000000</valUSD>
        <pctVal>0.140048286813</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>0.00000000</repurchaseRt>
          <maturityDt>2020-04-01</maturityDt>
          <repurchaseCollaterals>
            <repurchaseCollateral>
              <principalAmt>5115.03000000</principalAmt>
              <principalCd>USD</principalCd>
              <collateralVal>5263.47000000</collateralVal>
              <collateralCd>USD</collateralCd>
              <invstCat>UST</invstCat>
            </repurchaseCollateral>
          </repurchaseCollaterals>
        </repurchaseAgrmt>
        <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>4275.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>38945.25000000</valUSD>
        <pctVal>1.056965257955</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>Acacia Communications Inc</name>
        <lei>549300PZLTIVLKOBPB61</lei>
        <title>Acacia Communications, Inc.</title>
        <cusip>00401C108</cusip>
        <identifiers>
          <isin value="US00401C1080"/>
        </identifiers>
        <balance>900.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>60462.00000000</valUSD>
        <pctVal>1.640924976126</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>ViaSat Inc</name>
        <lei>UFC8NYMNFSYIHNSM2I38</lei>
        <title>ViaSat, Inc.</title>
        <cusip>92552V100</cusip>
        <identifiers>
          <isin value="US92552V1008"/>
        </identifiers>
        <balance>1061.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>38111.12000000</valUSD>
        <pctVal>1.034327158813</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>Cisco Systems Inc</name>
        <lei>8E6NF1YAL0WT6CWXXV93</lei>
        <title>Cisco Systems, Inc.</title>
        <cusip>17275R102</cusip>
        <identifiers>
          <isin value="US17275R1023"/>
        </identifiers>
        <balance>10715.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>421206.65000000</valUSD>
        <pctVal>11.43145301339</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>Telefonica Brasil SA</name>
        <lei>529900MTGG2HSDBIWG79</lei>
        <title>Telefonica Brasil S.A.</title>
        <cusip>87936R106</cusip>
        <identifiers>
          <isin value="US87936R1068"/>
        </identifiers>
        <balance>4021.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>38320.13000000</valUSD>
        <pctVal>1.039999642840</pctVal>
        <payoffProfile>Long</payoffProfile>
        <assetCat>EC</assetCat>
        <issuerCat>CORP</issuerCat>
        <invCountry>BR</invCountry>
        <isRestrictedSec>N</isRestrictedSec>

        <fairValLevel>1</fairValLevel>
        <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>13416.66000000</balance>
        <units>PA</units>
        <curCd>USD</curCd>
        <valUSD>13416.66000000</valUSD>
        <pctVal>0.364125111478</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>0.01000000</repurchaseRt>
          <maturityDt>2020-04-01</maturityDt>
          <repurchaseCollaterals>
            <repurchaseCollateral>
              <principalAmt>13005.42000000</principalAmt>
              <principalCd>USD</principalCd>
              <collateralVal>13685.00000000</collateralVal>
              <collateralCd>USD</collateralCd>
              <invstCat>UST</invstCat>
            </repurchaseCollateral>
          </repurchaseCollaterals>
        </repurchaseAgrmt>
        <securityLending>
          <isCashCollateral>N</isCashCollateral>
          <isNonCashCollateral>N</isNonCashCollateral>
          <isLoanByFund>N</isLoanByFund>
        </securityLending>
      </invstOrSec>
      <invstOrSec>
        <name>Sprint Corp</name>
        <lei>549300ZTTY7CXOLJ6539</lei>
        <title>Sprint Corp.</title>
        <cusip>85207U105</cusip>
        <identifiers>
          <isin value="US85207U1051"/>
        </identifiers>
        <balance>17644.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>152091.28000000</valUSD>
        <pctVal>4.127722867306</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>701.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>47170.29000000</valUSD>
        <pctVal>1.280190979328</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>Juniper Networks Inc</name>
        <lei>AUHIXNGG7U2U7JEHM527</lei>
        <title>Juniper Networks, Inc.</title>
        <cusip>48203R104</cusip>
        <identifiers>
          <isin value="US48203R1041"/>
        </identifiers>
        <balance>4251.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>81364.14000000</valUSD>
        <pctVal>2.208204318201</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>AT&amp;T Inc</name>
        <lei>549300Z40J86GGSTL398</lei>
        <title>AT&amp;T, Inc.</title>
        <cusip>00206R102</cusip>
        <identifiers>
          <isin value="US00206R1023"/>
        </identifiers>
        <balance>14626.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>426347.90000000</valUSD>
        <pctVal>11.57098537311</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>4375.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>49043.75000000</valUSD>
        <pctVal>1.331036259103</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>1282.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>29280.88000000</valUSD>
        <pctVal>0.794676446610</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>2000.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>47340.00000000</valUSD>
        <pctVal>1.284796870263</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>865.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>38604.95000000</valUSD>
        <pctVal>1.047729593085</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>Plantronics Inc</name>
        <lei>5493006O3W5M472F6668</lei>
        <title>Plantronics, Inc.</title>
        <cusip>727493108</cusip>
        <identifiers>
          <isin value="US7274931085"/>
        </identifiers>
        <balance>1384.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>13923.04000000</valUSD>
        <pctVal>0.377868149905</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>Motorola Solutions Inc</name>
        <lei>6S552MUG6KGJVEBSEC55</lei>
        <title>Motorola Solutions, Inc.</title>
        <cusip>620076307</cusip>
        <identifiers>
          <isin value="US6200763075"/>
        </identifiers>
        <balance>1056.00000000</balance>
        <units>NS</units>
        <curCd>USD</curCd>
        <valUSD>140363.52000000</valUSD>
        <pctVal>3.809434119034</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>2020-04-30</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>
