The Dow dropped 405.89 points, or 1.45%, to close at 27,534.58. The S&P 500 slid 1.8% to 3,339.19. The Nasdaq Composite closed 1.99% lower at 10,919.59. Stocks were under pressure as tech shares resumed their sell-off.
Apple shares fell 3% after rising as much as 2.7%. Tesla, which popped more than 8% at one point, ended the day up only slightly. Facebook, Amazon, Netflix, Alphabet and Microsoft also fell. "It's a tricky market," said one strategist. "You look up one second and the market's down. You look down the other second and you're back up."
U.S. weekly jobless claims came in at 884,000 for the week ending Sept. 5. Economists polled by Dow Jones expected claims to come in at 850,000.