The ProShares Ultra FTSE/Xinhua China 25 (Ticker: XXP) seeks daily investment results, before fees and expenses, that correspond to TWICE (200%) the daily performance of the FTSE/Xinhua China 25 Index. The index consists of the 25 largest and most liquid Chinese companies. Individual constituent weightings are capped at 10% to avoid over concentration. All index components trade on the Hong Kong Stock Exchange and are also constituents of the FTSE All-World Index. The index is reviewed quarterly.