iShares Core S&P Total US Stock Market ETF (NYSEArca: ITOT)
Expense Ratio: 0.07%
Comment: ITOT is seen as broad U.S. equity allocation, covering the broad S&P 1500 index. Compared to other total market stock indices, the S&P 1500 index does not hold as much small- or micro-cap stocks. When compared to the S&P 500, the S&P 1500 index takes on more mid- and small-cap exposure.