UNITED STATES
SECURITIES AND EXCHANGE COMMISSION
Washington, D.C. 20549
Notice of Effectiveness
Effectiveness Date: May 7, 2012
Accession Number: 0000891092-12-002228
Submission Type: POS AM
CIK: 0001482876
Company Name: FactorShares 2X: TBond Bull/S&P500 Bear
File Number: 333-164758