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Rank Date Close Change Net % 1 1987-10-19 : 224.84 −57.86 −20.47 2 1929-10-28: 22.74 −3.20 −12.34 3 2020-03-16: 2,386.13 −324.89 −11.98 4
The S&P 500 index is a free-float weighted/capitalization-weighted index. As of September 30, 2024, the nine largest companies on the list of S&P 500 companies accounted for 34.6% of the market capitalization of the index and were, in order of highest to lowest weighting: Apple , Microsoft , Nvidia , Amazon.com , Meta Platforms , Alphabet ...
Fortunately for investors, even if top stocks are peaking, the market should probably still go up. A recent analysis from BMO Capital Markets chief investment strategist Brian Belski showed that ...
June 8, 2023: The S&P 500 advanced 26.41 points, or 0.6%, to end at 4,293.93 Thursday, its highest closing level since Aug. 16, 2022, according to Dow Jones Market Data. The 4,292.44 level marked a 20% rally off the bear-market closing low of 3,577.03 set on Oct. 12, 2022.
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 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.
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Specialized software and hardware systems called ticker plants are designed to handle collection and throughput of massive data streams, displaying prices for traders and feeding computerized trading systems fast enough to capture opportunities before markets change. When stored, historical market data is a type of time series data.