The Russell 2000 Index is a small-cap stock market index of the smallest 2,000 stocks in the Russell 3000 Index. It was started by the Frank Russell Company in 1984. The index is maintained by FTSE Russell, a subsidiary of the London Stock Exchange Group. Similar small-cap indices include the S&P 600 from Standard & Poor's,which is less commonly used, along with those from other financial information providers.