The Nifty Midcap 50 Index is an index that tracks the performance of the top 50 midcap companies listed on the National Stock Exchange (NSE) based on full market capitalization from Nifty Midcap 150 index with preference given to those stocks on which derivative contracts are available on NSE. The primary objective of the Nifty Midcap 50 Index is to capture the movement of the midcap segment of the market. The Nifty Midcap 50 Index represents about 7% of the free float market capitalization of the stocks listed on NSE as on September 29, 2023. The Nifty Midcap 50 F&O is a futures contract based on the Nifty Midcap 50 index, which is traded on the NSE. The Nifty Midcap 100 Index is another index that tracks the performance of the top 100 midcap companies listed on the NSE based on full market capitalization from Nifty Midcap 150 index with preference given to those stocks on which derivative contracts are available on NSE. The Nifty Midcap 100 Index represents about 12% of the free float market capitalization of the stocks listed on NSE as on September 29, 2023.