About Nifty Top 15 Equal Weight The Nifty Top 15 Equal Weight Index is designed to track the performance of the top 15 companies selected based on their six-month average free-float market capitalization from the Nifty 50 Index. Each stock in the index is equally weighted, ensuring balanced representation across all constituents. The index is reconstituted semi-annually and rebalanced quarterly. It serves as a benchmark for asset managers and is used as a reference index for passive funds, including Exchange Traded Funds (ETFs), index funds, and structured products.