Rydex Series Funds
805 King Farm Boulevard, Suite 600
Rockville, Maryland 20850
March 28, 2017
VIA EDGAR CORRESPONDENCE
US Securities and Exchange Commission
100 F Street, NE
Washington, DC 20549
Attn: Mr. Asen Parachkevov
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| Re: | Rydex Series Funds (the “Trust”) (File Nos. 033-59692 and 811-207584) – Post-Effective Amendment No. 160 |
Dear Mr. Parachkevov,
Pursuant to Rule 461 under the Securities Act of 1933, we hereby request that the effective date of the above-captioned Registration Statement be accelerated so that the same will become effective at 9:00 a.m., Eastern Time, Monday, April 10, 2017, or as soon thereafter as practicable.
In connection with this request, Guggenheim Funds Distributors, LLC, the Trust’s underwriter, has also signed this letter requesting acceleration.
Very truly yours,
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| Rydex Series Funds | | Guggenheim Funds Distributors, LLC |
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| /s/ Amy J. Lee | | | /s/ Amy J. Lee | |
| By: Amy J. Lee | | By: Amy J. Lee |
| Title: Vice President and Secretary | | Title: Vice President and Secretary |
