S&P 500 Today: Get all information on the S&P 500 Index including historical chart, news and constituents.

Get S&P 500 Index (.SPX:INDEX) real-time stock quotes, news, price and financial information from CNBC.

.SPX: S&P 500 Index - Stock Price, Quote and News - CNBC

Get S&P 500 Index live stock quotes as well as charts, technical analysis, components and more SPX index data.

View the full S&P 500 Index (SPX) index overview including the latest stock market news, data and trading information.

Find the latest information on S&P 500 INDEX (^SPX) including data, charts, related news and more from Yahoo Finance

The S&P 500® is widely regarded as the best single gauge of large-cap U.S. equities. The index includes 500 leading companies and covers approximately 80% of available market capitalization.

Track S&P 500 Index (SPX) price, historical values, financial information, price forecast, and insights to empower your investing journey on MSN Money.

The Major Indices Page presents charts of the four major indices for your selected market (U.S. or Canada) for a quick visual on how each index has moved over the last week.

A stock market index is a measurement of a portion of the stock market. It is calculated from the prices of selected stocks (often a weighted average). It is a tool used by financial managers and investors to describe the market, and to compare the return on specific investments. Below you will find an interactive chart of some of the world's largest stock indexes. One example of a market ...