The S&P 500 Index, or the Standard & Poor’s 500 Index, is a market-capitalization-weighted index of the 500 largest publicly-traded companies in the U.S. It is not an exact list of the top 500 U.S. companies by market capitalization because there are other criteria to be included in the index. The index is widely regarded as the best gauge of large-cap U.S. equities.
SP500 (SPX)
The S&P 500 Index, or the Standard & Poor’s 500 Index, is a market-capitalization-weighted index of the 500 largest publicly-traded companies in the U.S. It is not an exact list of the top 500 U.S. companies by market capitalization because there are other criteria to be included in the index. The index is widely regarded as the best gauge of large-cap U.S. equities.