Vanguard Extended Market Index Fund Admiral Shares

This fund offers investors a low-cost way to gain broad exposure to U.S. mid- and small-capitalization stocks in one fund. The fund invests in about 3,000 stocks, which span many different industries and account for about one-fourth of the market-cap of the U.S. stock market. One of the fund’s risks is its full exposure to the mid- and small-cap markets, which tend to be more volatile than the large-cap market. The fund is considered a complement to Vanguard 500 Index Fund. Together they provide exposure to the entire U.S. equity market.