Registration No. 2-69719

File No. 811-3105

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, DC 20549

FORM N-1A

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933	☒
Pre-Effective Amendment No.	☐
Post-Effective Amendment No. 70	☒

and/or

REGISTRATION STATEMENT

UNDER

THE INVESTMENT COMPANY ACT OF 1940	☒
Amendment No. 63	☒

OPPENHEIMER CAPITAL APPRECIATION FUND

(Exact Name of Registrant as Specified in Charter)

6803 South Tucson Way, Centennial, Colorado 80112-3924

(Address of Principal Executive Offices) (Zip Code)

(303) 768-3200

(Registrant’s Telephone Number, including Area Code)

Cynthia Lo Bessette, Esq.

OFI Global Asset Management, Inc.

225 Liberty Street, New York, New York 10281-1008

(Name and Address of Agent for Service)

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

☒ Immediately upon filing pursuant to paragraph (b)

☐ On                     , pursuant to paragraph (b)

☐ 60 days after filing, pursuant to paragraph (a)(1)

☐ On                     , pursuant to paragraph (a)(1)

☐ 75 days after filing, pursuant to paragraph (a)(2)

☐ On                     , pursuant to paragraph (a)(2) of Rule 485.

If appropriate, check the following box:

☐ 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 the requirements for effectiveness of this Registration Statement 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 New York and State of New York on the 14^th day of November, 2016.

OPPENHEIMER CAPITAL APPRECIATION FUND
By:	Arthur P. Steinmetz*
	Arthur P. Steinmetz
	President and Principal 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 on the dates indicated:

Signatures	Title	Date
Brian F. Wruble* Brian F. Wruble	Chairman of the Board of Trustees	November 14, 2016
Arthur P. Steinmetz* Arthur P. Steinmetz	President and Principal Executive Officer	November 14, 2016
Brian S. Petersen* Brian S. Petersen	Treasurer, Principal Financial & Accounting Officer	November 14, 2016
Beth Ann Brown* Beth Ann Brown	Trustee	November 14, 2016
Matthew P. Fink* Matthew P. Fink	Trustee	November 14, 2016
Edmund P. Giambastiani, Jr.* Edmund P. Giambastiani, Jr.	Trustee	November 14, 2016
Elizabeth Krentzman* Elizabeth Krentzman	Trustee	November 14, 2016
Mary F. Miller* Mary F. Miller	Trustee	November 14, 2016
Joel W. Motley* Joel W. Motley	Trustee	November 14, 2016
Joanne Pace* Joanne Pace	Trustee	November 14, 2016

Daniel Vandivort* Daniel Vandivort Trustee November 14, 2016

*By:	/s/ Mitchell J. Lindauer
	Mitchell J. Lindauer, Attorney-in-Fact

EXHIBIT INDEX

Exhibit No.	Description
Ex-101.INS	XBRL Instance Document
Ex-101.SCH	XBRL Taxonomy Extension Schema Document
Ex-101.CAL	XBRL Taxonomy Extension Calculation Linkbase Document
Ex-101.DEF	XBRL Taxonomy Extension Definition Linkbase
Ex-101.LAB	XBRL Taxonomy Extension Labels Linkbase
Ex-101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document

C-1