|iShares U.S. Pharmaceuticals ETF (the Fund) seeks investment results that correspond generally to the price and yield performance of the Dow Jones U.S. Select Pharmaceuticals Index (the Index). The Index measures the performance of the pharmaceuticals sector of the United States equity market, and includes pharmaceutical companies such as manufacturers of prescription or over-the-counter drugs or vaccines, but excludes producers of vitamins. The Fund invests in a representative sample of securities included in the Index that collectively has an investment profile similar to the Index. Due to the use of representative sampling, the Fund may or may not hold all of the securities that are included in the Index. The Fund's investment advisor is BlackRock Fund Advisors.