The NASDAQ-100 is widely followed as a measure mainly of the big tech and social media stocks that make up the index.

The U.S. stock market was mostly up in midday trading Friday, with the S&P 500 trading near its record closing high as its technology sector climbed sharply. The S&P 500 was up 38 points around midday ...

Investors should watch major support levels on the S&P 500's chart around 5,875 ... occurred on lower-than-average end-of-year trading volume. Let’s take a closer look at three major levels ...

Most of the time the stock market has earned positive returns Figure 1 in the chart below shows the annual return in the S&P 500 since 1926, including the return from dividends. This chart ...

The S&P 500 stock market index includes around 500 large companies. Learn more about what criteria qualify an S&P 500 company and which businesses made the list. Many, or all, of the products ...

S&P 500 companies, at large, saw a sequential dip in stock buybacks in the third quarter to $226.6B from $235.9B in the previous quarter. This figure was still a 22.1% jump over last year ...