The Dow Jones Industrial Average jumped 200.36 points, or 1.23 percent, to 16,472.37. The S&P 500 gained 27.54 points, or 1.43 percent, to 1,951.36. The Nasdaq Composite Index leapt 80.69 points, or 1.74 percent, to 4,707.77, Xinhua news agency reported.