ProShares UltraShort Basic Materials (the Fund) seeks daily investment results that correspond to twice the inverse daily performance of the Dow Jones U.S. Basic Materials Index (the Index). The Index measures the performance of the basic materials industry of the United States equity market. Component companies are involved in the production of aluminum, steel, non-ferrous metals, commodity chemicals, specialty chemicals, forest products, paper products, as well as the mining of precious metals and coal. The Fund takes positions in securities and/or financial instruments that, in combination, should have similar daily return characteristics as –200% of the daily return of the Index. The Index is a price return index. The Fund’s investment advisor is ProShare Advisors LLC.