S&P 500® | S&P Dow Jones Indices
www.spglobal.com › spdji › enOct 05, 2022 · The S&P 500® is widely regarded as the best single gauge of large-cap U.S. equities. According to our Annual Survey of Assets, an estimated USD 15.6 trillion is indexed or benchmarked to the index, with indexed assets comprising approximately USD 7.1 trillion of this total (as of Dec. 31, 2021). The index includes 500 leading companies and covers approximately 80% of available market capitalization.