The Dow Jones industrial average lost 459 points Monday, falling 1.9 percent, as tech stocks led the markets down and investors eyed growing trade tensions with China. Earlier in the day, the Dow was down more than 700 points.
Amazon tumbled more than 5 percent after President Trump criticized the companyin tweets. The tech-heavy Nasdaq index lost 2.7 percent. The S&P 500 index lost 59 points, or 2.2 percent.
Investors are also worried about a growing trade war with China. On Monday, Beijing retaliated against U.S. tariffs on steel and aluminum imports by unveiling a list of 128 imports from the U.S., including agriculture products ranging from fruit to frozen pork, that would be subject to higher import duties.