As filed with the Securities and Exchange Commission on March 30, 2011

File No. 033-65137

File No. 811-07455

SECURITIES AND EXCHANGE COMMISSION

Washington, D.C. 20549

FORM N-1A

REGISTRATION STATEMENT

Under

the SECURITIES ACT OF 1933

Pre-Effective Amendment No.	¨
Post-Effective Amendment No. 50	x

and/or

REGISTRATION STATEMENT

Under the INVESTMENT COMPANY ACT OF 1940	¨
Amendment No. 51	x

(Check appropriate box or boxes)

Virtus Opportunities Trust

(Exact Name of Registrant as Specified in Charter)

Area Code and Telephone Number: (800) 243-1574

101 Munson Street

Greenfield, Massachusetts 01301

(Address of Principal Executive Offices)

Kevin J. Carr, Esq.

Counsel

Virtus Investment Partners, Inc.

100 Pearl St.

Hartford, Connecticut 06103

(Name and Address of Agent for Service)

Copies of All Correspondence to:

Robert N. Hickey, Esq.

Sullivan & Worcester LLP

1666 K Street, N.W.

Washington, D.C. 20006

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

x immediately upon filing pursuant to paragraph (b)

¨ on                      pursuant to paragraph (b) of Rule 485

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

¨ on                      or at such later date as the Commission shall order pursuant to paragraph (a)(2)

¨ 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.

EXPLANATORY NOTE

This Post-Effective Amendment No. 50 relates to the following funds:

Virtus Allocator Premium AlphaSector Fund

Virtus Global Premium AlphaSector Fund

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) of the Securities Act and has duly caused this amendment to the registration statement to be signed on its behalf by the undersigned, duly authorized, in the City of Hartford and the State of Connecticut on the 30th day of March, 2011.

VIRTUS OPPORTUNITIES TRUST
By:	/s/    GEORGE R. AYLWARD
	George R. Aylward
	President

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 indicated on the 30th day of March, 2011.

Signature	Title
/s/    GEORGE R. AYLWARD         George R. Aylward	Trustee and President (principal executive officer)
/s/    W. PATRICK BRADLEY         W. Patrick Bradley	Chief Financial Officer and Treasurer (principal financial and accounting officer)
/s/    LEROY KEITH, JR.         Leroy Keith, Jr.*	Trustee
/s/    PHILIP R. MCLOUGHLIN         Philip R. McLoughlin*	Trustee and Chairman
/s/    GERALDINE M. MCNAMARA         Geraldine M. McNamara*	Trustee
/s/    JAMES M. OATES         James M. Oates*	Trustee
/s/    RICHARD E. SEGERSON         Richard E. Segerson*	Trustee
/s/    FERDINAND L.J. VERDONCK         Ferdinand L.J. Verdonck*	Trustee

*By	/s/    GEORGE R. AYLWARD
	*George R. Aylward, Attorney-in-Fact, pursuant to a power of attorney

Exhibit Index

Exhibit Number	Description
EX-101.INS	XBRL Instance Document
EX-101.SCH	XBRL Taxonomy Extension Schema Document
EX-101.CAL	XBRL Taxonomy Extension Calculation Linkbase
EX-101.DEF	XBRL Taxonomy Extension Definition Linkbase
EX-101.LAB	XBRL Taxonomy Extension Labels Linkbase
EX-101.PRE	XBRL Taxonomy Extension Presentation Linkbase