U.S. stocks bounced hard, with the Dow up 631 points, or 1.38%, to 46,208.47, the S&P 500 up 1.15% to 6,581.00, and the Nasdaq up 1.38% to 21,946.76. Oil market's Brent May crude is up more than 3% to $102.96 and WTI May crude is up 3.6% to $91.