#10. UBT — THREE MONTH RETURN = -26.02%

ProShares Ultra 20+ Year Treasury ETF (the "Fund") is an open-end management investment company. The Fund seeks daily investment results that correspond to two times (2x) the daily performance of the Barclays U.S. 20+ Year Treasury Bond Index. The index includes all publicly issued, U.S. Treasury securities that have a remaining maturity greater than 20 years, are non-convertible, are denominated in U.S. dollars, are rated investment grade, are fixed rate, and have more than $250 million par outstanding. As of May 31 2013, the Fund's total assets were $20,429,891 and the Fund's investment portfolio was valued at $19,135,655.