Nasdaq-100 Index Definition
The Nasdaq-100 Index is a "modified capitalization-weighted" index designed to track the performance of a market consisting of the 100 largest and most actively traded non-financial domestic and international securities listed on The Nasdaq Stock Market, based on market capitalization. To be included in the Index, a stock must have a minimum average daily trading volume of 100,000 shares. Generally, companies on the Index also must have traded on Nasdaq, or been listed on another major exchange, for at least two years.