A series of indices developed jointly by the Frank Russell Company and the New York Futures Exchange (NYFE) to represent investment-grade equities in the USA, which include the Russell 1000 Index, 2000 Index, and 3000 Index. The Russell 3000 Index tracks the 3,000 most actively traded stocks in the USA and is divided into the Russell 1000 and Russell 2000 sub-indexes. The Russell 1000 Index represents the largest companies in the USA domestic equity market, based on market capitalisation. The Russell 2000 Index represents the second tier of USA equities, or companies with market values between approximately $20 million and $300 million. See 'Index'.