The technology-laced Nasdaq Composite Index .IXIC rose 39.39 points, or 2.2 percent, to 1,826.33, after losing more than 2 percent on Tuesday.
The blue-chip Dow Jones industrial average .DJI jumped 194.14 points, or 2.09 percent, to 9,469.20 after sinking more than 1 percent a day earlier.