Updated at 11:15 a.m. ET
In late morning, the Dow was up more than 350 points, or 1.8%, and the S&P 500 index gained 1.1%. The Nasdaq was up about 2.3%.
It could be a sign that stocks, which have been mostly plunging for weeks, are taking a breather.
As of Thursday's close, the Dow had lost 5% in the past five trading days and 29% so far this year.
Stocks indexes were mostly higher in Asia and Europe on Friday.
It will be the last day of floor trading before the New York Stock Exchange switches to all-electronic trades starting Monday to help protect its employees and others from the coronavirus.