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S&P 500
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S&P 500

definition

A weighted index of 500 of the widely-held mid-cap and large-cap stocks. The movement of the S&P 500 is generally regarded as accurately reflecting the performance of the market as a whole. See Broader Market; NASDAQ 100; Russell 3000; Wilshire 5000.

Related Terms

 • market index deposit (MID)  • Russell 3000  • NASDAQ 100  • index option  • index fund  • Russell 2000  • broad-based index  • E-mini
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