The S&P 500 plunged on Friday and has lost ground in five of the past six weeks amid concerns about the impact of tariffs and the outlook for the economy. Monitor these crucial chart levels.

In 11 of those years, the S&P 500 index generated annual returns of more than 20%. Buying and holding the S&P 500 index over the long run pays off. The following chart shows just how much it's ...

For the first time in over a year, the U.S. stock market is in a correction. The question now is whether the slide is set to ...

The S&P 500 tumbled into correction Thursday ... connects a range of comparable price action on the chart between June and September last year.