Exhibit

As filed with the U.S. Securities and Exchange Commission on May 21, 2019

File Nos. 033-59692 and 811-07584

U.S. SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT

UNDER



	THE SECURITIES ACT OF 1933	x
	Pre-Effective Amendment No.	¨
	Post-Effective Amendment No. 200	x

and/or

REGISTRATION STATEMENT

UNDER



	THE INVESTMENT COMPANY ACT OF 1940	x
	Amendment No. 201	x

RYDEX SERIES FUNDS

(Exact Name of Registrant as Specified in Charter)

c/o Guggenheim Investments

702 King Farm Boulevard, Suite 200

Rockville, Maryland 20850

(Address of Principal Executive Offices) (Zip Code)

(301) 296-5100

(Registrant’s Telephone Number, including Area Code)

The Corporation Trust Company

1209 Orange Street

Wilmington, Delaware 19801

County of New Castle

(Name and Address of Agent for Service)

Copies to:



Laura E. Flores W. John McGuire Morgan, Lewis & Bockius LLP 1111 Pennsylvania Avenue, NW Washington, DC 20004	Amy J. Lee Guggenheim Investments 702 King Farm Boulevard, Suite 200 Rockville, Maryland 20850

It is proposed that this filing will become effective (check appropriate box):


x	Immediately upon filing pursuant to paragraph (b) of Rule 485


¨	On (date) pursuant to paragraph (b) of Rule 485


¨	60 days after filing pursuant to paragraph (a)(1) of Rule 485


¨	On (date) pursuant to paragraph (a)(1) of Rule 485


¨	75 days after filing pursuant to paragraph (a)(2) of Rule 485

¨ On (date) pursuant to paragraph (a)(2) of Rule 485

EXPLANATORY NOTE

This Post-Effective Amendment No. 200 relates to Class A shares, Class C shares, Class H shares, Class P shares and Institutional Class shares, as applicable, of the Commodities Strategy Fund, Managed Futures Strategy Fund and Multi-Hedge Strategies Fund (collectively, the “Funds”), each a separate series of Rydex Series Funds. The purpose of this filing is to file risk/return summary information, in interactive data format, for the Funds.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 (the “Securities Act”) and the Investment Company Act of 1940, as amended, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement under Rule 485(b) under the Securities Act and has duly caused the Post-Effective Amendment No. 200 to Registration Statement 033-59692 to be signed on its behalf by the undersigned, duly authorized, in the City of Rockville, State of Maryland on this 21st day of May, 2019.

Rydex Series Funds

/s/ Amy J. Lee

Amy J. Lee

President (Principal Executive Officer)

Pursuant to the requirements of the Securities Act, this Post-Effective Amendment No. 200 to the Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.



Signature	Title	Date

/s/ Angela Brock-Kyle*	Member of the Board of Trustees	May 21, 2019
Angela Brock-Kyle

/s/ Corey A. Colehour*	Member of the Board of Trustees	May 21, 2019
Corey A. Colehour

/s/ J. Kenneth Dalton*	Member of the Board of Trustees	May 21, 2019
J. Kenneth Dalton

/s/ Thomas F. Lydon, Jr.*	Member of the Board of Trustees	May 21, 2019
Thomas F. Lydon, Jr.

/s/ Sandra Sponem*	Chairman and Member of the Board of Trustees	May 21, 2019
Sandra Sponem	Chairman and Member of the Board of Trustees

/s/ John L. Sullivan	Member of the Board of Trustees	May 21, 2019
John L. Sullivan

/s/ Amy J. Lee

* Amy J. Lee, Attorney-in-Fact, pursuant to power of attorney

SIGNATURES

This Registration Statement of Rydex Series Funds, with respect only to the information that specifically relates to the Rydex Series Commodities Strategy CFC, Rydex Series Managed Futures Strategy CFC and Rydex Series Multi-Hedge Strategies CFC, has been signed by the following persons in the capacities and on the dates indicated.



Signature	Title	Date

/s/ James Howley	Director	May 21, 2019
James Howley

/s/ Amy J. Lee	Director	May 21, 2019
Amy J. Lee

EXHIBIT INDEX

Exhibit Number Description

EX-101.INS XBRL Instance Document

EX-101.SCH XBRL Taxonomy Extension Schema Document

EX-101.CAL XBRL Taxonomy Extension Calculation Linkbase

EX-101.DEF XBRL Taxonomy Extension Definition Linkbase

EX-101.LAB XBRL Taxonomy Extension Labels Linkbase

EX-101.PRE XBRL Taxomony Extension Presentation Linkbase