Widely regarded as the best single gauge of the U.S. equities market, this world-renowned index includes 500 leading companies in leading industries of the U.S. economy. S&P 500 is a core component of the U.S. indices that could be used as building blocks for portfolio construction. It is also the U.S. component of S&P Global 1200.
Index constituents exhibit the following characteristics:
- Market Coverage – Approximately 75% of the U.S. equities market
- Weighting – Market capitalization
- Market Capitalization – Minimum of US$ 5 billion
- Public Float – At least 50%
- Reconstitution – As needed basis
With more than US$ 1.53 trillion in indexed assets, the S&P U.S. indices have earned a reputation for being not only leading market indicators, but also investable portfolios designed for cost efficient replication or the creation of index-linked products. The history of the S&P 500 dates back to 1923, with an expansion to include 500 companies in 1957.
Index Governance and Policy
This index is maintained by the S&P Index Committee, whose members include Standard & Poor's economists and index analysts. It follows a set of published guidelines and policies that provide the transparent methodologies used to maintain the index.
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