iShares Russell Mid-Cap Value ETF (the Fund), formerly iShares Russell Midcap Value Index Fund, is an exchange-traded fund (ETF). The Fund seeks investment results that correspond generally to the price and yield performance of the Russell Midcap Value Index (the Value Index). The Value Index measures the performance of the mid-capitalization value sector of the United States equity market. The Value Index is a subset of the Russell Midcap Index and measures the performance of equity securities issued by those Russell Midcap Index companies with relatively lower price-to-book ratios and lower forecasted growth. Component companies are adjusted for available float and must meet objective criteria for inclusion to the Index. The Fund invests in a representative sample of securities included in the Value Index that collectively has an investment profile similar to the Value Index. The Fund's investment advisor is BlackRock Fund Advisors.