ProShares ®

ProShare Advisors LLC

7501 Wisconsin Avenue

Suite 1000

Bethesda, MD 20814-6527

Phone: 240.497.6400

Fax:     240.497.6530

March 21, 2013

VIA EDGAR

U.S. Securities and Exchange Commission

100 F Street, N.E.

Washington, DC 20549

 

Re:   ProShares (the “Trust”)
     (File Nos. 333-89822 and 811-21114)

Ladies and Gentlemen:

Transmitted herewith for filing on behalf of the Trust pursuant to Rule 497 under the Securities Act of 1933, as amended, are exhibits in interactive data format on XBRL, which contain the risk return summary information of the prospectus dated February 25, 2013 for ProShares Global Listed Private Equity ETF, as filed under Rule 497 on February 28, 2013 (SEC Accession No. 0001193125-13-080483).

Should you have any comments or questions, please do not hesitate to contact me at (240) 497-6539.

Sincerely,

/s/ Amy R. Doberman

Amy R. Doberman

Chief Legal Officer and Secretary