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The Center for Research in Security Prices, LLC (CRSP) is a provider of historical stock market and investable index data. CRSP is an affiliate of the Booth School of Business at the University of Chicago. CRSP maintains some of the largest and most comprehensive proprietary historical databases in stock market research.
(The intraday high may not be the same as the opening price; for instance, in the 2010 flash crash, the market reached an intraday high, higher than the opening price.) [48] This is distinguished from an intraday point drop or gain, which is the difference between the opening price and the intraday low or high.
Style investing can also lead to mispricing: when a security is re-classified, such as when a stock is added to the S&P 500 index, its co-movement with the index increases while its co-movement with stocks outside of the index declines and possibly hurting performance.
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 ]
[5] [6] [7] Designed and developed by American Stock Exchange executives Nathan Most and Steven Bloom, [8] [9] the fund first traded on that market, but has since been listed elsewhere, including the New York Stock Exchange. In February 2024, SPY became the first ETF in history to reach $500 billion in assets under management. [10]
The Dow Jones Industrial Average, an American stock index composed of 30 large companies, has changed its components 59 times since its inception, on May 26, 1896. [1] As this is a historical listing, the names here are the full legal name of the corporation on that date, with abbreviations and punctuation according to the corporation's own usage.
The S&P 500 is a stock market index maintained by S&P Dow Jones Indices. It comprises 503 common stocks which are issued by 500 large-cap companies traded on the American stock exchanges (including the 30 companies that compose the Dow Jones Industrial Average). The index includes about 80 percent of the American market by capitalization.
By the end of the year the index closed 70 of the year's 252 trading days at new record closing prices, the second highest to date behind the 77 recorded in 1995. [46] 2021 also marked the first year since 2005 when the S&P 500 beat the other two closely watched U.S. stock indices: the Dow Jones Industrial Average and the Nasdaq Composite. [47]