As filed with the Securities and Exchange Commission on November 14, 2012

Securities Act File No. 333-57793

Investment Company Act of 1940 File No. 811-08839

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933	x
Post-Effective Amendment No. 90	x

And

REGISTRATION STATEMENT

UNDER

THE INVESTMENT COMPANY ACT OF 1940 x

Amendment No. 92

SPDR^® SERIES TRUST

(Exact Name of Registrant as Specified in Charter)

One Lincoln Street

Boston, Massachusetts 02111

(Address of Principal Executive Offices)

Registrant’s Telephone Number: (866) 787-2257

Copies to:

Ryan M. Louvar, Esq. State Street Bank and Trust Company One Lincoln Street/CPH0326 Boston, Massachusetts 02111	W. John McGuire, Esq. Bingham McCutchen LLP 2020 K Street NW Washington, DC 20006
(Name and Address of Agent for Service)

It is proposed that this filing will become effective:

x immediately upon filing pursuant to Rule 485, paragraph (b)

¨ on                      pursuant to Rule 485, paragraph (b)

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

¨ on                      pursuant to Rule 485, paragraph (a)(1)

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

¨ on                      pursuant to Rule 485, paragraph (a)(2)

¨ this post-effective amendment designates a new effective date for a previously filed post-effective amendment.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, 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 caused this amendment to the registration statement to be signed on its behalf by the undersigned, duly authorized, in the City of Boston and Commonwealth of Massachusetts on the 14^th day of November, 2012.

SPDR® SERIES TRUST
By:	/s/ Ellen M. Needham*
	Ellen M. Needham
	President

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933, as amended, this amendment to the registration statement has been signed below by the following persons in the capacities and on the date indicated:

SIGNATURES	TITLE	DATE
/s/ Bonny E. Boatman*	Trustee	November 14, 2012
Bonny E. Boatman
/s/ Dwight D. Churchill*	Trustee	November 14, 2012
Dwight D. Churchill
/s/ David M. Kelly*	Trustee	November 14, 2012
David M. Kelly
/s/ Frank Nesvet*	Trustee	November 14, 2012
Frank Nesvet
/s/ Carl G. Verboncoeur*	Trustee	November 14, 2012
Carl G. Verboncoeur
/s/ Ellen M. Needham*	President and Principal Executive Officer	November 14, 2012
Ellen M. Needham
/s/ Chad C. Hallett	Treasurer and Principal Financial Officer	November 14, 2012
Chad C. Hallett

*By :	/s/ Scott E. Habeeb
	Scott E. Habeeb
	As Attorney-in-Fact Pursuant to Power of Attorney