About Nifty Midcap150 Momentum 50 The Nifty Midcap150 Momentum 50 Index is designed to reflect the performance of the top 50 mid-cap stocks from the Nifty Midcap150 Index, selected based on their normalized momentum score. This score is determined by adjusting each company's 6-month and 12-month price returns for volatility. The index is reconstituted and rebalanced semi-annually, with stock weights based on a combination of the normalized momentum score and free-float market capitalization. It serves as a benchmark for asset managers and can be used in the creation of index funds, ETFs, and structured products.