- Glossary
- S&P BSE 100
S&P BSE 100

Key Highlights
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The S&P BSE 100 is a benchmark stock index that tracks the performance of the top 100 companies listed on the Bombay Stock Exchange (BSE) based on market capitalization.
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Key features of S&P BSE 100 include composition, sector representation and investment benchmark.
What is S&P BSE 100?
The S&P BSE 100 is a benchmark stock index that tracks the performance of the top 100 companies listed on the Bombay Stock Exchange (BSE) based on market capitalization. Managed by the BSE and Standard & Poor's (S&P), this index offers a broad representation of the Indian equity market across various sectors.
Key Features of S&P BSE 100
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Composition: The index includes 100 large-cap stocks, providing a diversified snapshot of India’s leading companies.
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Sector Representation: Covers a wide range of industries, making it a comprehensive indicator of market trends.
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Investment Benchmark: Frequently used by mutual funds and institutional investors to measure performance against the broader market.
Importance for Investors
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Market Barometer: The S&P BSE 100 is widely used as a gauge for the overall health of the Indian stock market. The index’s performance showcases market-wide economic patterns and investor outlook.
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Investment Benchmark: Mutual funds, portfolio managers, and institutional investors use the index as a standard to measure their performance against the broader market.
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Diversification Tool: Since it covers multiple sectors, the index helps investors understand sectoral trends and diversify their portfolios effectively.
Eligibility Criteria
Companies qualify for inclusion in the S&P BSE 100 based on:
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Market Capitalization: Companies must be among the top by market value.
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Liquidity: Stocks must demonstrate a high level of trading activity.
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Financial Health: The financial performance and stability of the company play a crucial role in inclusion.
How is it Calculated?
The index uses a free-float market capitalization-weighted methodology, meaning companies with a higher market cap have a greater influence on the index's movements. Free float refers to the portion of shares readily available for trading by the public.