About Nifty Next 50 The NIFTY Next 50 is an Indian stock market index that includes 50 companies ranked 51st to 100th by free-float market capitalization on the National Stock Exchange of India. It represents approximately 10% of the free-float market capitalization of all listed stocks. The index is calculated using a free-float market capitalization methodology and is rebalanced semi-annually. It serves as a benchmark for large-cap companies that are potential candidates for future inclusion in the NIFTY 50 index.