U.S. stocks rallied to a seven-week high after data indicated manufacturing in the world's largest economy may be

stabilizing, while optimism that central banks from Asia to Europe will add to stimulus supported emerging-market currencies and commodities.

The Dow Jones Industrial Average surged more than 340 points, while the Standard & Poor's 500 Index rebounded from a two-day drop, climbing back to a level last seen at the start of the year. A gauge of emerging-market shares advanced the most since Feb. 15 as the ruble and Brazil's real strengthened. Yields on 10-year Treasury notes jumped nine basis points to 1.83 percent, while gold fell following its steepest monthly rally since 2012. Crude topped $34 a barrel in New York, while the yen pared back some gains.