The S&P 1500, or S&P Composite 1500 Index, is a stock market index of US stocks made by Standard & Poor's. It includes all stocks in the S&P 500, S&P 400, and S&P 600. This index covers approximately 90% of the market capitalization of U.S. stocks and is a broad measure of the U.S. equity market.

Standard & Poor's also provides the S&P 900 index (a combination of the S&P 500 index plus the S&P 400 mid-cap index)^[2] and the S&P 1000 (the S&P 400 plus the S&P 600 small-cap index).^[3]

The "S&P 1500" generally quoted is a price return index; there is also "total return" version of the index.^{[citation needed]} These versions differ in how dividends are accounted for. The price return version does not account for dividends; it only captures the changes in the prices of the index components.^[4] The total return version reflects the effects of dividend reinvestment.

^[1]

• Russell 3000
• S&P 500
• List of S&P 500 companies
• S&P 400
• List of S&P 400 companies
• S&P 600
• List of S&P 600 companies
• Wilshire 5000