The markets sections of the CNN Money and MarketWatch websites provide interactive charts and news headlines to analyze past market data. Some of the major stock indexes include the Dow Jones Industrial Average, the NYSE Composite Index and the S&P 500 Composite, notes the SEC website.
The S&P 500 chart is accessible at MarketWatch.com. It's possible to modify the chart for a specific time period and compare it to a specific index or industry. Advanced tools include the upper indicator, lower indicator and price display. Entering new symbols provides access to charts for other stock market indexes and the ability to plot the historical performance. The CNN Money website also lists information for various stock indexes including three-month average daily volume, one-year change, and companies that make up the NASDAQ composite index.
The Dow Jones Industrial Average contains stocks from 30 U.S. industrial companies, notes the SEC. The index is weighted and does not take into account market capitalization figures. The NYSE Composite Index tracks price movements of all common stocks on the New York Stock Exchange. The S&P 500 index is a capitalization-weighted index of 500 stocks intended to be a representative sample of leading companies within the U.S. economy.