About Nifty 50 The Nifty 50 is a stock market index that represents the weighted average of 50 large-cap companies listed on the National Stock Exchange of India. It covers major sectors of the Indian economy, providing a comprehensive snapshot of the market. The index is used for benchmarking fund portfolios, launching index funds, ETFs, and structured products. It is computed using the free float market capitalization method, reflecting the market value of the constituent companies.