The Fund invests in financial instruments that ProShare Advisors believes, in combination, should produce daily returns consistent with the Daily Target. The Index is constructed and maintained by S&P Dow Jones Indices LLC. The Index represents the materials sector of the S&P 500 Index (S&P 500). The Index is one of eleven S&P Select Sector Indices (the Select Sector Indices), each designed to measure the performance of a sector of the S&P 500. Sectors are assigned using the Global Industry Classification Standard (GICS), which classifies securities primarily based on revenues. The Index includes equity securities of companies from the following GICS industries: chemicals; construction materials; containers & packaging; metals & mining; and paper & forest products. The Index constituents are weighted using a capped modified market capitalization methodology and rebalanced quarterly. The Index is published under the Bloomberg ticker symbol IXB.