Nifty Definition Index: S&P CNX Nifty is a well diversified 50 Stock Index accounting for 21 sectors of the economy. It is used for a variety of purposes such as benchmarking fund portfolios, index based derivatives and index funds.

Indian Index Services & Products limited(called as IISL) owns NIFTY. ISSL is a joint venture of NSE & CRISIL. But CRISIL is a subsidiary of standard and Poor, there its called as S&S NIFTY or S&P CNX NIFTY.

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• The traded value for the last six months of all Nifty stocks is approximately 44.89% of the traded value of all stocks on the NSE
• Nifty stocks represent about 58.64% of the total market capitalization as on March 31, 2008.
• Impact cost of the S&P CNX Nifty for a portfolio size of Rs.2 crore is 0.15%
• S&P CNX Nifty is professionally maintained and is ideal for derivatives trading