The document provides information about the S&P CNX Nifty and NASDAQ-100 stock indices. The S&P CNX Nifty tracks the performance of the 50 largest Indian companies listed on the National Stock Exchange of India based on market capitalization. It covers 23 sectors of the Indian economy. The NASDAQ-100 tracks the performance of 100 of the largest domestic and international non-financial companies listed on the Nasdaq Stock Market based on market capitalization. Both indices have eligibility criteria for initial and continued inclusion and use formulae to calculate index values based on the market values and weights of constituent securities.