Exhibit 16.1
Securities and Exchange Commission
100 F Street, N.E.
Washington, D.C. 20549
Ladies and Gentlemen:
We have read Item 4.01(a) of Form 8-K dated November 7, 2012 FactorShares 2X: Oil Bull/S&P500 Bear and are in agreement with the statements contained in paragraph (a) therein. We have no basis to agree or disagree with other statements of the registrant contained therein.
/s/ Ernst & Young LLP
New York, New York
November 7, 2012