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The National Stock Exchange of India Ltd. (NSE) is the leading stock exchange in India and the second largest in the world by nos. of trades in equity shares from January to June 2018, according to World Federation of Exchanges (WFE) report.

NSE launched electronic screen-based trading in 1994, derivatives trading (in the form of index futures) and internet trading in 2000, which were each the first of its kind in India.

NSE has a fully-integrated business model comprising our exchange listings, trading services, clearing and settlement services, indices, market data feeds, technology solutions and financial education offerings. NSE also oversees compliance by trading and clearing members and listed companies with the rules and regulations of the exchange.

NSE is a pioneer in technology and ensures the reliability and performance of its systems through a culture of innovation and investment in technology. NSE believes that the scale and breadth of its products and services, sustained leadership positions across multiple asset classes in India and globally enable it to be highly reactive to market demands and changes and deliver innovation in both trading and non-trading businesses to provide high-quality data and services to market participants and clients.

The NIFTY 50 is a diversified 50 stock index accounting for 13 sectors of the economy. It is used for a variety of purposes such as benchmarking fund portfolios, index based derivatives and index funds.

NIFTY 50 is owned and managed by NSE Indices Limited (formerly known as India Index Services & Products Limited) (NSE Indices). NSE Indices is India's specialised company focused upon the index as a core product.

• The NIFTY 50 Index represents about 66.8% of the free float market capitalization of the stocks listed on NSE as on March 29, 2019.
• The total traded value of NIFTY 50 index constituents for the last six months ending March 2019 is approximately 53.4% of the traded value of all stocks on the NSE.
• Impact cost of the NIFTY 50 for a portfolio size of Rs.50 lakhs is 0.02% for the month March 2019..
• NIFTY 50 is ideal for derivatives trading.

From June 26, 2009,  NIFTY 50 is computed based on free float methodology.

Index Calculation formula: Price Index Calculations: The NIFTY 50 is computed using the free-float market capitalisation weighted method wherein the level of the Index reflects the total market value of all the stocks in the Index relative to the base period November 3, 1995. The total market cap of a company or the market capitalization is the product of market price and the total number of outstanding shares of the company. Market Capitalization = Shares outstanding * Price Free Float Market Capitalization = Shares outstanding * Price * IWF Index Value = Current Market Value / Base Market Capital * Base Index Value (1000) Base market capital of the Index is the aggregate market capitalization of each scrip in the Index during the base period. The market cap during the base period is equated to an Index value of 1000 known as the base Index value. Total Return Index Calculation: The NIFTY 50 reflects the return one would get if an investment is made in the index portfolio. As the NIFTY 50 is computed in real- time, it takes into account only the stock price movements. However, the price indices do not consider the return from dividend payments of index constituent stocks. Only the capital gains and losses due to price movement are measured by the price index. In order to get a true picture of returns, the dividends received from the index constituent stocks also need to be included in the index movement. Such an index, which includes the dividends received, is called the total return index. The total return index reflects the returns on the index from stock prices fluctuation plus dividend payments by constituent index stocks. The total return version of the NIFTY 50 index is also available, which assumes dividends are reinvested in the index on the ex-date. Corporate actions like Dividend announcement do not require any adjustment in the normal price index (other than special dividend). Special dividend refers to a dividend that’s more than 5% of close price of a stock declaring dividend and all cases of dividends (irrespective of the dividend amount), where the entity has sought exemption from the timeline prescribed under the provisions of SEBI (Listing Obligations and Disclosure Requirements) Regulations, 2015. A suitable divisor adjustment is made in case of a special dividend. A separate series of index i.e. Total Returns Index (TR) is calculated which shows the returns on Index portfolio, inclusive of dividends. 𝑻𝑹 

𝑰𝒏𝒅𝒆𝒙 = 𝑃𝑟𝑒𝑣𝑖𝑜𝑢𝑠 𝑇𝑅 𝑖𝑛𝑑𝑒𝑥 ∗ [1 + ( (𝑇𝑜𝑑𝑎𝑦 ′ 𝑠 𝑃𝑅 𝐼𝑛𝑑𝑒𝑥 + 𝐼𝑛𝑑𝑒𝑥𝑒𝑑 𝐷𝑖𝑣𝑖𝑑𝑒𝑛𝑑) 𝑃𝑟𝑒𝑣𝑖𝑜𝑢𝑠 𝑃𝑅 𝐼𝑛𝑑𝑒𝑥 − 1) ] Index dividend for the day ‘t’ = Total Dividends of the scrips in the Index / Index divisor for the day Total dividends of scrips in the Index = Σ (Dividend per share * Modified index shares) Modified index shares = Total outstanding shares * IWF * Capping Factor (if applicable)

Below is the list of Stocks currently listed on Nifty 50 as on March 2020 as per www.NSEINDIA.com