AS FILED WITH THE SECURITIES AND EXCHANGE COMMISSION ON SEPTEMBER 28, 2018

FILE NO. 002-86082

FILE NO. 811-03833-01

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT

UNDER

THE SECURITIES ACT OF 1933	þ
Post-Effective Amendment No.  102

AND

REGISTRATION STATEMENT

UNDER

THE INVESTMENT COMPANY ACT OF 1940	þ
Amendment No. 103

MAINSTAY VP FUNDS TRUST

(exact name of registrant as specified in charter)

51 MADISON AVENUE,

NEW YORK, NEW YORK 10010

(address of principal executive office)

REGISTRANT’S TELEPHONE NUMBER: (212) 576-7000

Copy to:

J. Kevin Gao, Esq. MainStay VP Funds Trust 30 Hudson Street Jersey City, NJ 07302 Thomas C. Bogle, Esq. Corey F. Rose, Esq. Dechert LLP 1900 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 paragraph (b) of Rule 485

¨ on              pursuant to paragraph (b)(1) of Rule 485

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

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

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

¨ 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.

Attached for filing are exhibits containing interactive data format risk/return summary information that reflects the risk/return summary information for the MainStay VP IQ Hedge Multi-Strategy Portfolio Prospectus dated September 10, 2018, submitted to the SEC on September 7, 2018 (Accession Number 0001144204-18-048618). The purpose of this filing is to submit an XBRL interactive data file in the manner provided by Rule 405 of Regulation S-T and General Instruction C.3.(g) of Form N-1A.

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 under Rule 485(b) under the Securities Act and that it has duly caused this Post-Effective Amendment No. 102 to its Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Jersey City in the State of New Jersey, on the 28^th day of September, 2018.

MAINSTAY VP FUNDS TRUST
By:	/s/ Kirk C. Lehneis
	Kirk C. Lehneis
	President and Principal Executive Officer

Pursuant to the requirements of the Securities Act of 1933, this Post-Effective Amendment No. 102 to the Registration Statement has been signed below by the following persons in the capacities indicated on September 28, 2018.

SIGNATURE	TITLE
/s/ Kirk C. Lehneis	President and Principal Executive Officer
Kirk C. Lehneis
/s/ Susan B. Kerley*	Trustee and Chairman of the Board
Susan B. Kerley
/s/ David H. Chow*	Trustee
David H. Chow
/s/ Yie-Hsin Hung*	Trustee
Yie-Hsin Hung
/s/ Alan R. Latshaw*	Trustee
Alan R. Latshaw
/s/ Richard H. Nolan, Jr.*	Trustee
Richard H. Nolan, Jr.
/s/ Jacques P. Perold*	Trustee
Jacques P. Perold
/s/ Richard S. Trutanic*	Trustee
Richard S. Trutanic
/s/ Jack R. Benintende	Treasurer and Principal Financial
Jack R. Benintende	and Accounting Officer
By: /s/ J. Kevin Gao	Secretary
J. Kevin Gao
As Attorney-in-Fact

* Pursuant to Powers of Attorney previously filed.

EXHIBIT INDEX

Exhibit No.

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 Document
EX-101.LAB	XBRL Taxonomy Extension Labels Linkbase Document
EX-101.PRE	XBRL Taxonomy Extension Presentation Linkbase Document