NIFTY is the short form for NSE Nifty 50, which is a stock market index that comprises of 50 of the largest publicly traded companies listed on the National Stock Exchange (NSE) of India. It is a market capitalization weighted index, which means that the weightage of a stock in the index is determined by the total market value of that stock. The NIFTY 50 is considered as a barometer of the Indian stock market, and is widely used to measure the performance of the broader market. It is also one of the most widely used indices for index funds, index-based derivatives and exchange-traded funds (ETFs) in India. The NIFTY 50 is calculated using free float methodology, which means that only those shares that are readily available for trading in the market are considered for index calculation. This is done to ensure that the index reflects the true market conditions, and is not influenced by any controlling stakeholder. The NIFTY 50 is the first index to be introduced in India and is widely considered as the benchmark index for the Indian stock market.