As filed with the United States Securities and Exchange Commission on October 3, 2012

1933 Act Registration No. 002-85905
1940 Act Registration No. 811-03826

UNITED STATES
SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

Form N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933	þ
Pre-Effective Amendment No.___	o
Post-Effective Amendment No. 81	þ
REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940	þ
Amendment No. 81

(Check appropriate box or boxes.)

AIM SECTOR FUNDS (INVESCO SECTOR FUNDS)

(Exact Name of Registrant as Specified in Charter)

11 Greenway Plaza, Suite 1000, Houston, TX 77046
(Address of Principal Executive Offices)

Registrant’s Telephone Number, including Area Code: (713) 626-1919

John M. Zerr, Esquire
11 Greenway Plaza, Suite 1000, Houston, TX 77046
(Name and Address of Agent for Service)

Copy to:

Peter A. Davidson, Esquire
Invesco Advisers, Inc.
11 Greenway Plaza, Suite 1000
Houston, Texas 77046-1173 E. Carolan Berkley, Esquire
Stradley Ronon Stevens & Young, LLP
2600 One Commerce Square
Philadelphia, Pennsylvania 19103

Approximate Date of Proposed Public Offering: As soon as practicable after the effective date of this Registration Statement

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

þ immediately upon filing pursuant to paragraph (b)

o on (date) pursuant to paragraph (b)

o 60 days after filing pursuant to paragraph (a)(1)

o on (date)pursuant to paragraph (a)(1)

o 75 days after filing pursuant to paragraph (a)(2)

o on (date), pursuant to paragraph (a)(2) of rule 485

If appropriate, check the following box:

o      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 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Registration Statement pursuant to Rule 485(b) under the Securities Act of 1933 and has duly caused this Amendment to its Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the city of Houston, Texas on the 3rd day of October, 2012.

Registrant:	AIM SECTOR FUNDS (INVESCO SECTOR FUNDS)
By:	/s/ Philip A. Taylor
	Philip A. Taylor, President

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

SIGNATURES	TITLE	DATE
/s/ Philip A. Taylor	Trustee & President	October 3, 2012
(Philip A. Taylor)	(Principal Executive Officer)
/s/ David C. Arch*	Trustee	October 3, 2012
(David C. Arch)
/s/ Frank S. Bayley*	Trustee	October 3, 2012
(Frank S. Bayley)
/s/ James T. Bunch*	Trustee	October 3, 2012
(James T. Bunch)
/s/ Bruce L. Crockett*	Chair & Trustee	October 3, 2012
(Bruce L. Crockett)
/s/ Rod Dammeyer*	Trustee	October 3, 2012
(Rod Dammeyer)
/s/ Albert R. Dowden*	Trustee	October 3, 2012
(Albert R. Dowden)
/s/ Martin L. Flanagan*	Trustee	October 3, 2012
(Martin L. Flanagan)
/s/ Jack M. Fields*	Trustee	October 3, 2012
(Jack M. Fields)
/s/ Carl Frischling*	Trustee	October 3, 2012
(Carl Frischling)
/s/ Prema Mathai-Davis*	Trustee	October 3, 2012
(Prema Mathai-Davis)
/s/ Larry Soll*	Trustee	October 3, 2012
(Larry Soll)

SIGNATURES	TITLE	DATE
/s/ Hugo F. Sonnenschein*	Trustee	October 3, 2012
(Hugo F. Sonnenschein)
/s/ Raymond Stickel, Jr.*	Trustee	October 3, 2012
(Raymond Stickel, Jr.)
/s/ Wayne W. Whalen*	Trustee	October 3, 2012
(Wayne W. Whalen)
/s/ Sheri Morris (Sheri Morris)	Vice President & Treasurer (Principal Financial and Accounting Officer)	October 3, 2012

*By	/s/ Philip A. Taylor
	Philip A. Taylor
	Attorney-in-Fact

* Philip A. Taylor, pursuant to powers of attorney dated November 30, 2010, filed in Registrant’s Post-Effective Amendment No. 65 on December 21, 2010.

Exhibit Index

XBRL Instance Document	Ex-101.ins
XBRL Taxonomy Extension Schema Document	Ex-101.sch
XBRL Taxonomy Extension Calculation Linkbase Document	Ex-101.cal
XBRL Taxonomy Extension Labels Linkbase	Ex-101.lab
XBRL Taxonomy Extension Presentation Linkbase Document	Ex-101.pre
XBRL Taxonomy Extension Definition Linkbase	Ex-101.def