U.S. stock index futures fell late Wednesday, after a mixed day on Wall Street. As of 9 p.m. Eastern, Dow Jones Industrial Average futures YM00, -1.38% were down nearly 200 points, or 0.8%, with S\&P 500 futures ES00, -1.18% and Nasdaq-100 futures NQ00, -0.99% declining as well. Stocks slumped in the final hour of trade Wednesday, as investors worried about an increase in coronavirus cases and the prospect of a slower-than-expected economic recovery. The Dow DJIA, -0.64% dropped 170.37 points, or 0.7%, to close at 26,119.61. The S\&P 500 SPX, -0.36% fell 11.25 points, finishing at 3,113.49, or 0.4% lower, while the Nasdaq Composite COMP, +0.14% gained 14.66 points, or 0.2%, closing at 9,910.53. Both the Dow and S\&P snapped three-day winning streaks.