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      <regStreet1>702 King Farm Blvd., Suite 200</regStreet1>
      <regCity>Rockville</regCity>
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      <regZipOrPostalCode>20850</regZipOrPostalCode>
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      <seriesName>Inverse High Yield Strategy Fund</seriesName>
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      <repPdDate>2020-09-30</repPdDate>
      <isFinalFiling>N</isFinalFiling>
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      </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>
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</edgarSubmission>
