As the number of coronavirus cases outside China surged, stoking fears of a prolonged global economic slowdown from the virus spreading.
As of 7:47 a.m. ET, Dow Jones Industrial Average futures were down 774 points, indicating a drop of 767 points at the open. Dow futures were down more than 800 points earlier in the session. S&P 500 and Nasdaq 100 futures were down by 2.5% and 2.8%, respectively.
Futures pointed to the biggest one-day points drop for the Dow since August, when the 30-stock average slid 800 points.