About Nifty 50 Index

This index uses the free-float market capitalization methodology with periodic semi-annual rebalancing. The governance structure includes the Board of Directors of NSE Indices Limited, the Index Advisory Committee (Equity), and the Index Maintenance Sub-Committee. As of October 31, 2025, the index consists of 51 constituents, with calculation performed in real-time during market hours.

Uses of Nifty 50 Index

The index is widely used to benchmark fund portfolios, as well as for launching index funds, ETFs, and other structured products, reflecting the performance of the large-cap segment of the Indian equity market.

Launch Date and Base Date of Nifty 50 Index

• Launch Date: November 3, 1995
• Base Date: November 3, 1995
• Base Value: 1,000

Nifty 50 Index Rebalancing

The index is rebalanced semi-annually on January 31 and July 31, using six-month average data as of the cut-off dates. Market participants receive four weeks’ advance notice of changes.

Top Constituents and Weightage of Nifty 50 Index (As of October 31, 2025)

• HDFC Bank Ltd. — 12.78%
• Reliance Industries Ltd. — 8.53%
• ICICI Bank Ltd. — 8.14%
• Bharti Airtel Ltd. — 4.75%
• Infosys Ltd. — 4.53%
• Larsen & Toubro Ltd. — 4.01%
• ITC Ltd. — 3.43%
• State Bank of India — 3.29%
• Axis Bank Ltd. — 2.99%
• Tata Consultancy Services Ltd. — 2.65%

Nifty 50 Index Methodology

Eligibility Criteria

• Stocks must demonstrate an average impact cost of 0.50% or less over six months for 90% of observations for a basket size of Rs. 100 Million.
• Only stocks listed on NSE and eligible for trading in the Futures & Options segment are considered.
• Minimum listing history of one month as of the cut-off date is required.

Calculation Method

The index is calculated using the free-float market capitalization weighted method, adjusted semi-annually for market data and corporate actions, with real-time updates during trading hours.

Performance Metrics (As of October 31, 2025)

• Quarter-to-date (QTD): 4.62%
• Year-to-date (YTD): 10.08%
• 1 Year: 7.59%
• 5 Years: 18.58% CAGR
• Since Inception: 12.95% CAGR

Fundamentals:

• Dividend Yield: 3.52%
• Price-to-Earnings (P/E) Ratio: 22.64
• Price-to-Book (P/B) Ratio: 1.29

Risk Metrics:

• Standard Deviation (annualised): 14.15%
• Beta (relative to itself, Nifty 50): 1.00
• Correlation: 1.00