That said, the Schwab U.S. Broad Market ETF ( SCHB) is about as close of an approximation to what I just described above as they come. This fund tracks the total return of the entire Dow Jones U.S. Broad Stock Market Index, which essentially includes more than 2,400 stocks across virtually all sectors. In other words, investors in SCHB gain exposure to the entire universe of investable equities in the U.S. market. Talk about diversification, folks.