S&P 100
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The S&P 100 Index is a stock market index of United States stocks maintained by Standard & Poor's.
Foundation | June 15, 1983; 40 years ago (1983-06-15)[1] |
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Operator | S&P Dow Jones Indices[2] |
Exchanges | |
Trading symbol |
|
Constituents | 101[3] |
Type | Large-cap[2] |
Market cap | US$28.6 trillion (as of December 31, 2023)[4] |
Weighting method | Free-float capitalization-weighted[5] |
Related indices | S&P 500 |
Website | www |
Index options on the S&P 100 are traded with the ticker symbol "OEX". Because of the popularity of these options, investors often refer to the index by its ticker symbol.
The S&P 100, a subset of the S&P 500, includes 101 (because one of its component companies has two classes of stock) leading U.S. stocks with exchange-listed options. Constituents of the S&P 100 are selected for sector balance and represent about 67% of the market capitalization of the S&P 500 and almost 54% of the market capitalization of the U.S. equity markets as of December 2020. The stocks in the S&P 100 tend to be the largest and most established companies in the S&P 500.[1]