About Nifty Microcap 250 The Nifty Microcap 250 Index is a free-float market capitalization-weighted index that tracks the performance of the top 250 companies listed on the National Stock Exchange of India, excluding those in the Nifty 500 index. It includes companies ranked 501st to 750th in terms of market capitalization. The index is reviewed semi-annually, with constituent weights based on free-float market capitalization. It was launched on May 10, 2021, with a base date of April 1, 2005, and a base value of 1000.
