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The Standard and Poor's 500, or simply the S&P 500, [5] is a stock market index tracking the stock performance of 500 of the largest companies listed on stock exchanges in the United States. It is one of the most commonly followed equity indices and includes approximately 80% of the total market capitalization of U.S. public companies, with an ...
While the S&P 500 was first introduced in 1923, it wasn't until 1957 when the stock market index was formally recognized, thus some of the following records may not be known by sources. [ 1 ] Largest daily percentage gains [ 2 ]
As a result of the mid-1980s bull market, the index would more than triple from 102.42 on August 12, 1982, to 336.77 on August 25, 1987. [2] The subsequent stock market crash on October 19, 1987 (Black Monday) saw the index lose 20.47% of its value, its highest daily percentage loss to date. [3]
The S&P 500 (SNPINDEX: ^GSPC), widely viewed as a barometer for the entire U.S. stock market, has advanced 26% year to date.That puts the index on pace to return more than 20% for the second ...
Stock market indices may be categorized by their index weight methodology, or the rules on how stocks are allocated in the index, independent of its stock coverage. For example, the S&P 500 and the S&P 500 Equal Weight each cover the same group of stocks, but the S&P 500 is weighted by market capitalization, while the S&P 500 Equal Weight places equal weight on each constituent.
The market's positive open follows four consecutive days of losses in the final trading days of 2024. Still, the S&P 500 surged 23% to notch back-to-back annual gains of over 20%.
Stock indexes drifted to a mixed finish on Wall Street as some heavyweight technology and communications sector stocks offset gains elsewhere in the market. The S&P 500 slipped less than 0.1% ...
The New York Stock Exchange reopened that day following a nearly four-and-a-half-month closure since July 30, 1914, and the Dow in fact rose 4.4% that day (from 71.42 to 74.56). However, the apparent decline was due to a later 1916 revision of the Dow Jones Industrial Average, which retroactively adjusted the values following the closure but ...