Morgan, Lewis & Bockius LLP
1111 Pennsylvania Avenue, NW
Washington DC 20004

Laura E. Flores
202.739.5684
lflores@morganlewis.com

March 2, 2006


VIA EDGAR CORRESPONDENCE

Mr. Christian T. Sandoe
U.S. Securities and Exchange Commission
100 F Street, NE
Washington, DC 20549

Re:      Rydex ETF Trust (The "Trust") - Post Effective Amendment No. 5
         --------------------------------------------------------------
         (File Nos. 333-101625 and 811-21261)
         ------------------------------------

Dear Mr. Sandoe:

This letter responds to your comments to the Trust's Post-Effective Amendment
No. 5, filed on December 15, 2005 for the purpose of introducing the S&P 500
Pure Value ETF, S&P 500 Pure Growth ETF, S&P MidCap 400 Pure Value ETF, S&P
MidCap 400 Pure Growth ETF, S&P SmallCap 600 Pure Value ETF, and S&P SmallCap
600 Pure Growth ETF (each a "Fund" and collectively, the "S&P Pure Style ETFs")
into the Trust. Post-Effective Amendment No. 5 also includes the S&P Equal
Weight ETF and the Russell Top 50 ETF (each a "Fund" and together with the S&P
Pure Style ETFs, the "Funds"). The following summarizes your comments, and our
response to those comments. Unless otherwise noted, capitalized terms have the
same meaning as contained in the Funds' Prospectus and/or Statement of
Additional Information ("SAI").

COMMENTS APPLICABLE TO THE PROSPECTUS:

1.       COMMENT. Please consider revising the description of "Tracking Error
         Risk," included under "Common Risk/Return Information - Principal
         Risks," by deleting the reference to a Fund's performance exceeding
         that of the Underlying Index.

         RESPONSE. We have revised the language accordingly.



2.       COMMENT. Please include a brief explanation of the S&P Equal Weight
         Index. In particular, please note that the S&P Equal Weight Index is
         the equal weighted version of the S&P 500 Index and explain what "equal
         weighted" means.

         RESPONSE. We have revised the S&P Equal Weight ETF's "Principal
         Investment Strategy" as follows (new language appears in bold for
         purposes of correspondence only):

         "The Fund uses a passive management strategy to track the performance
         of the Underlying Index. THE UNDERLYING INDEX IS THE EQUAL-WEIGHTED
         VERSION OF THE S&P 500, WHICH IS A MEASURE OF THE LARGE-CAPITALIZATION
         stocks of 500 major corporations selected by Standard & Poor's(R), a
         division of the McGraw Hill Companies, Inc. ("Standard & Poor's"), for
         their market size, liquidity and industry group representation. UNLIKE
         THE S&P 500, IN WHICH EACH CONSTITUENT STOCK'S WEIGHT IS PROPORTIONATE
         TO ITS MARKET VALUE, EACH STOCK IN THE UNDERLYING INDEX WILL BE
         REBALANCED QUARTERLY TO HAVE THE SAME TARGET WEIGHTING AS EVERY OTHER
         STOCK IN THE UNDERLYING INDEX.

         The Fund will use a "replication" strategy to try to track the Index.
         "Replication" refers to investing in substantially all of the
         securities in the Underlying Index in approximately the same
         proportions as in the Underlying Index. The Advisor expects that, over
         time, the correlation between the Fund's performance, before expenses,
         and that of the Underlying Index will be 95% or better. A figure of
         100% would indicate perfect correlation."

3.       COMMENT. Please consolidate the "Principal Risks" disclosure in each
         Fund's two-page spread.

         RESPONSE. We have not consolidated the "Principal Risks" disclosure in
         each Fund's two-page spread because we do not think Form N-1A precludes
         the collection of common risk return information in the forefront of
         the Prospectus followed by each Fund's specific Item 2 and Item 3
         information. Form N-1A states only that this information is not to be
         preceded by "any other Item except the Cover Page (Item 1) or a table
         of contents meeting the requirements of rule 481(c) under the
         Securities Act." In compliance with this requirement, the "Common
         Risk/Return Information" section of the Prospectus is preceded only by
         the Cover Page and Table of Contents of the Prospectus.

         In addition, the Prospectus's current organization is consistent with
         the requirements set forth in Rule 421 under the Securities Act of
         1933. In particular, Rule 421(b)(4)4 states that repeating disclosure
         "in different sections of the document that increases the size of the
         document but does not enhance the quality of the information" should be
         avoided. Repeating the principal risks associated with each Fund in
         each Fund's two-page spread will not only increase the size of the
         Prospectus significantly, but will have the effect of obscuring those
         risks that are not common to all of the Funds.

         Moreover, we think that the Prospectus's current organization aids the
         investor in understanding of the principal risks associated with each



         Fund. By presenting the principal risks that are common to each Fund in
         one location in the front of the Prospectus and the Fund-specific
         principal risks in each Fund's two-page spread, the investor is better
         able to compare the Funds and focus on those risks that are specific to
         each Fund.

4.       COMMENT. Please include large-capitalization market segment risk in the
         S&P Equal Weight ETF's "Principal Risks" section, if applicable.

         RESPONSE. We have included the following risk disclosure under the
         Fund's "Principal Risks" section:

         "Market Segment Risk - The Fund is subject to the risk that
         large-capitalization stocks may underperform other segments of the
         equity market or the equity markets as a whole."

5.       COMMENT. Please clarify that the risks included in each Fund's
         "Principal Risks" section are in addition to those included in the
         "Common Risk/Return Information" section of the Prospectus.

         RESPONSE. We have revised the first sentence under each Fund's
         "Principal Risks" section as follows:

         "In addition to those risks common to investing in any Fund, the
         [Russell Top 50 ETF] is subject to a number of other risks that may
         affect the value of its shares, including:"

6.       COMMENT. Please disclose the number of constituent stocks in each S&P
         Pure Style ETF's Underlying Index under the "Principal Investment
         Strategy" section for each Fund.

         RESPONSE. We have added the following sentence to the S&P 500 Pure
         Value ETF's "Principal Investment Strategy" section and a similar
         sentence to each of the other S&P Pure Style ETF's "Principal
         Investment Strategy" sections (new language appears in bold for
         purposes of correspondence only).

         "PRINCIPAL INVESTMENT STRATEGY
         The Fund uses a passive management strategy to track the performance of
         the Underlying Index. The S&P 500/Citigroup Pure Value Index is narrow
         in focus, containing only those S&P 500 companies with strong value
         characteristics as selected by Standard & Poor's. AS OF DECEMBER 31,
         2005, THE UNDERLYING INDEX INCLUDED 152 OF THE CONSTITUENTS THAT
         COMPRISE THE S&P 500. The Fund will use a "replication" strategy to try
         to track the Index. "Replication" refers to investing in substantially
         all of the securities in the Underlying Index in approximately the same
         proportions as in the Underlying Index. The Advisor, expects that, over
         time, the correlation between the Fund's performance and that of the
         Underlying Index, before expenses, will be 95% or better. A figure of
         100% would indicate perfect correlation.



7.       COMMENT. Please disclose the market capitalization ranges for each
         Fund's Underlying Index as of a recent date.

         RESPONSE. We have added the following sentence to the S&P 500 Pure
         Value ETF's "Principal Investment Strategy" section and a similar
         sentence to each of the other Fund's "Principal Investment Strategy"
         sections.

         "As of December 31, 2005, the S&P 500/Citigroup Pure Value Index
         included companies with an average capitalization of approximately $2
         trillion."

8.       COMMENT. Please revise the "Medium Issuer Risk" and "Small Issuer Risk"
         captions to clarify that they are applicable to medium and
         small-capitalization companies.

         RESPONSE. We have revised the captions as follows: "Mid-Capitalization
         Issuer Risk" and "Small-Capitalization Issuer Risk."

9.       COMMENT. Under "Active Investors and Market Timing," please clarify
         that the Board has not adopted policies and procedures designed to
         prevent market timing because it has found that is appropriate for the
         Funds not to have such policies and procedures.

         RESPONSE. We have revised the disclosure under "Active Investors and
         Market Timing" as follows (revised language appears in bold for
         purposes of correspondence only):

         "Shares of the Funds are listed for trading on the Exchange, which
         allows retail investors to purchase and sell individual shares at
         market prices throughout the trading day similar to other publicly
         traded securities. THE TRUST'S BOARD OF TRUSTEES DETERMINED TO NOT
         ADOPT POLICIES AND PROCEDURES DESIGNED TO PREVENT OR MONITOR FOR
         FREQUENT PURCHASES AND REDEMPTIONS OF THE FUNDS' SHARES BECAUSE the
         Funds sell and redeem their shares at NAV only in Creation Units
         pursuant to the terms of a Participant Agreement between the authorized
         participant and the Distributor, principally in exchange for a basket
         of securities that mirrors the composition of each Fund's portfolio and
         a specified amount of cash. The Funds also impose a transaction fee on
         such Creation Unit transactions that is designed to offset the Funds'
         transfer and other transaction costs associated with the issuance and
         redemption of the Creation Unit shares."

10.      COMMENT. Please state that 12b-1 fees will increase the cost of an
         investor's investment in the second paragraph under "Distribution
         Plan."

         RESPONSE. We have revised the last sentence in the second paragraph
         under "Distribution Plan" as follows (new language appears in bold for
         purposes of correspondence only):




         "However, in the event that 12b-1 fees are charged in the future,
         because the Funds pay these fees out of assets on an ongoing basis,
         over time these fees may cost you more than other types of sales
         charges AND WILL INCREASE THE COST OF YOUR INVESTMENT."

11.      COMMENT. Please update the telephone number for the U.S. Securities and
         Exchange Commission Public Reference Room on the back cover page of the
         Prospectus.

         RESPONSE. We have revised the Public Reference Room's telephone number
         accordingly.


COMMENTS APPLICABLE TO THE SAI:

12.      COMMENT. Please present the information required to appear under
         "Dollar Range of Fund Shares" owned by each Board member for each Fund.

         RESPONSE. We have revised the table included under "Fund Shares Owned
         By Board Members" accordingly.

13.      COMMENT. Under "Portfolio Manager Compensation," please disclose the
         external benchmark that each Fund will be compared to.

         RESPONSE. We have added the following sentence as the second to last
         sentence of the "Portfolio Manager Compensation" section:

         "For the Funds, the portfolio managers' performance will be compared in
         part to the performance of the Funds' underlying indices, as that term
         is defined in the Prospectus."

                                       ***

I hereby acknowledge on behalf of the Rydex ETF Trust (the "Trust") that: (i)
the Trust is responsible for the adequacy and accuracy of the disclosure in its
registration statement; (ii) SEC staff comments or changes to disclosure in
response to staff comments in the registration statement reviewed by the staff
do not foreclose the SEC from taking any action with respect to the registration
statement; and (iii) the Trust may not assert SEC staff comments as a defense in
any proceeding initiated by the SEC or any person under the federal securities
laws of the United States.




If you have any additional questions or comments, please do not hesitate to
contact either John McGuire at 202.739.5654 or me at 202.739.5684.

Sincerely,

/s/ Laura E. Flores
- -------------------

Laura E. Flores

c:  John McGuire, Esq.
    Joanna Haigney