What is the NIFTY 50?
The NIFTY 50 is a free-float market capitalisation-weighted index comprising 50 large, liquid, and financially established companies listed on the National Stock Exchange of India (NSE). Launched on April 22, 1996, with a base value of 1,000 and base year 1995, it is one of India's most tracked benchmark stock market indices and a primary indicator of the Indian equity market.
Why Investors Track the NIFTY 50?
The NIFTY 50 is widely used as a benchmark for Indian equity mutual funds, ETFs, PMS strategies, derivatives, and institutional portfolios. Because it represents large-cap Indian equities across sectors, it is commonly used to evaluate market performance and investor sentiment.
How Does the NIFTY 50 Work?
The index is calculated using the free-float market capitalisation methodology. Only shares available for public trading are considered; shares held by promoters, governments, and strategic investors are excluded. Companies are selected based on free-float market capitalisation, liquidity, trading frequency, sector representation, and listing history. The index undergoes periodic reviews to ensure it continues to represent large-cap Indian equities effectively.
Who Maintains the NIFTY 50?
The NIFTY 50 is maintained by NSE Indices Ltd., a subsidiary of the National Stock Exchange of India. The organisation is responsible for index methodology, constituent reviews, rebalancing, and governance.
Calculation Formula
NIFTY 50 Value = (Total free-float market capitalisation of constituents ÷ Base period free-float market capitalisation) × 1,000
What is the NIFTY 50 TRI?
The Total Return Index (TRI) version of the NIFTY 50 includes dividends paid by constituent companies and assumes those dividends are reinvested back into the index. Most index mutual funds and ETFs benchmark themselves against the NIFTY 50 TRI as it provides a more comprehensive representation of investor returns.

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