Thursday's coverage included more tech earnings, focus on Trump's latest on potential tariffs and more analysis around Monday ...

The S&P 500 is one of the most widely followed stock indexes, and its performance is used as a benchmark for the stock market at large. Here's what it is, how it works, and why it's important.

Looking today at week-over-week shares outstanding changes among the universe of ETFs covered at ETF Channel, one standout is the ProShares UltraPro S&P 500 (Symbol: UPRO) where we have detected ...

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 ...

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 ...

The S&P 500, the large cap index, is widely followed as a measure of the health of the U. S. economy. The Nasdaq-100 is widely followed as a measure mainly of the big tech and social media stocks ...