Nasdaq-100 Stock Index (NDX INDEX)

The NASDAQ-100 Index is a modified capitalization-weighted index of the 100 largest and most active non-financial domestic and international issues listed on the NASDAQ. No security can have more than a 24% weighting. The index was developed with a base value of 125 as of February 1, 1985. Prior to December 21,1998 the Nasdaq 100 was a cap-weighted index.