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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 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 ...
Though this index includes just 500 of the more than 6,000 publicly traded U.S. stocks, the S&P 500 tells a more complete story of what the market is doing than the Dow or Nasdaq 100.
Every day an individual stock's price changes and thereby changes a stock index's value. The impact that individual stock's price change has on the index is proportional to the company's overall market value (the share price multiplied by the number of outstanding shares), in a capitalization-weighted index.
The S&P 500 index is a benchmark used to gauge the broader U.S. market. Its 500 large-cap and megacap components come from every sector of the economy, and reflect investing categories from value ...
Here are the 10 best-performing S&P 500 stocks in 2024. The stock market had a strong year in 2024, with the S&P 500 surging about 23% to record highs, extending the strong gains seen in 2023.
Many stock indexes are calculated as a price return index and a total return index as well: The US stock index S&P 500 [3] is an example of a price return index and the German stock market index DAX [4] is an example of a total return index.
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.