Original S&P 500 companies include Goodyear, ConocoPhillips and Ingersoll-Rand

Order Reprints

There have been 86 companies on the S&P 500 since day one. Goodyear Tire & Rubber Co. is one of them.

On the 50th anniversary of the index's birth, Standard & Poor's gave tribute to the original companies of the S&P 500. In addition to Goodyear, the only tire manufacturer on the list, they include 3M Co., Alcoa Inc., Exxon Mobil Corp., Ford Motor Co., General Motors Corp., Procter & Gamble Co., Caterpillar Inc., ConocoPhillips Co. and Ingersoll-Rand Co Ltd.

The S&P 500 is the cornerstone of the Standard & Poor's indices in the United States. Since its launch in March 1957, the index has become widely accepted by investment professionals as the premier proxy for the entire U.S. equity market.

According to Standard & Poor's, the S&P 500 represents nearly 75% of the U.S. market capitalization.

In order to be included in the S&P 500 index, a company must have market capitalization exceeding $4 billion and, like all S&P U.S. index constituents, must meet the Standard & Poor's published guidelines for inclusion.

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