As filed with the Securities and Exchange Commission on December 7, 2012 

                                              SECURITIES ACT FILE NO. 333-134551
                                       INVESTMENT COMPANY ACT FILE NO. 811-21906
================================================================================

                                  UNITED STATES
                       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. 223                                             |X|

                                     and/or
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940              |X|

                                Amendment No. 226
                                                                             |X|

                        (Check appropriate box or boxes)

CLAYMORE EXCHANGE-TRADED FUND TRUST
(EXACT NAME OF REGISTRANT AS SPECIFIED IN ITS CHARTER)

2455 CORPORATE WEST DRIVE
LISLE, ILLINOIS 60532
(Address of Principal Executive
Offices)

(630) 505-3700
Registrant's Telephone Number

KEVIN M. ROBINSON

GUGGENHEIM FUNDS INVESTMENT ADVISORS, LLC
2455 CORPORATE WEST DRIVE
LISLE, ILLINOIS 60532
(Name and Address of Agent for Service)

Copy to:
STUART M. STRAUSS, ESQ.
DECHERT LLP
1095 AVENUE OF THE AMERICAS
NEW YORK, NY 10036

APPROXIMATE DATE OF PROPOSED PUBLIC OFFERING:

IT IS PROPOSED THAT THIS FILING WILL BECOME EFFECTIVE (CHECK APPROPRIATE BOX)

_________ IMMEDIATELY UPON FILING PURSUANT TO PARAGRAPH (B) OF RULE 485.

X ON JANUARY 4, 2013 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) OF RULE 485.

_________ 75 DAYS AFTER FILING PURSUANT TO PARAGRAPH (A)(2) OF RULE 485.

_________ ON [DATE] PURSUANT TO PARAGRAPH (A) OF RULE 485.

The sole purpose of this filing is to delay the effectiveness of the Trust's Post-Effective Amendment No. 152 to its Registration Statement until January 4, 2013. Parts A, B and C of Registrant's Post-Effective Amendment No. 152 under the Securities Act of 1933 and Amendment No. 155 under the Investment Company Act of 1940, filed on November 4, 2011, are incorporated by reference herein.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all the requirements for effectiveness pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused this Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Lisle and State of Illinois on the 7th day of December, 2012.

CLAYMORE EXCHANGE-TRADED FUND TRUST 

By:  /s/ Donald C. Cacciapaglia
     ------------------------------
     Donald C. Cacciapaglia
     Chief Executive Officer

Pursuant to the requirements of the Securities Act of 1933, this Registration Statement has been signed below by the following persons in the capacities and on the date indicated. 

       SIGNATURES                       TITLE                     DATE

                    *                                           December 7, 2012
--------------------------
Randall C. Barnes               Trustee

                    *                                           December 7, 2012
--------------------------
Roman Friedrich III             Trustee

                    *                                           December 7, 2012
--------------------------
Robert B. Karn III              Trustee

                    *                                           December 7, 2012
--------------------------
Ronald A. Nyberg                Trustee

                    *                                           December 7, 2012
--------------------------
Ronald E. Toupin, Jr.           Trustee

/s/ Donald C. Cacciapaglia                                      December 7, 2012
--------------------------      Trustee and Chief
Donald C. Cacciapaglia          Executive Officer

/s/ John L. Sullivan                                            December 7, 2012
--------------------------      Treasurer, Chief
John L. Sullivan                Financial Officer and
                                Chief Accounting Officer
/s/ Stevens T. Kelly                                            December 7, 2012
--------------------------
Stevens T. Kelly

*Attorney-In-Fact, pursuant to power of attorney