The S&P 100 Index is the largest 100 major blue chip companies across multiple sectors. The S&P 100 Index is a sub-set of the S&P 500. The S&P 100 represents 51% of the market capitalization of all U.S. equity markets combined.

Below is a list of some of the companies listed on the S&P 100.

Apple Inc.
Microsoft Corp
Facebook Inc Inc
Johnson & Johnson
Berkshire Hathaway
Exxon Mobil Corp
JP Morgan Chase & Co
Alphabet Inc

S&P 100 (Wikipedia)
S&P 100
Foundation June 15, 1983; 34 years ago (1983-06-15)
Operator S&P Dow Jones Indices
Exchanges NYSE, NASDAQ
Constituents 102
Type Large-cap
Market cap US$13.6 trillion
(as of April 30, 2017)
Weighting method Free-float capitalization-weighted
Related indices

The S&P 100 Index is a stock market index of United States stocks maintained by Standard & Poor's.

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 102 (because two of its component companies have 2 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 63% of the market capitalization of the S&P 500 and almost 51% of the market capitalization of the U.S. equity markets as of January 2017. The stocks in the S&P 100 tend to be the largest and most established companies in the S&P 500.

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