Option Investor

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NASDAQ 100 Index (NDX)

The NASDAQ 100 Index was created in 1985 and represents the largest, most active non-financial companies listed on the NASDAQ, based on market capitalization. Companies listed include computer hardware, telecommunications, retail/wholesale, biotechnology and software. In order to be eligible for listing in the NASDAQ 100 Index, a stock must trade a minimum of 100,000 shares. Also, a general rule is that a company must have been listed on the NASDAQ or another major exchange for at least two years. Foreign securities must have a world wide market value of at least $10 billion, a U.S. market value of at least $4 billion, trade a daily average 200,000 shares per day and be eligible for listed options trading. The NASDAQ 100 Index is reviewed on a quarterly basis and adjustments are made to re-balance the capitalization weighting if needed.