Asian stocks rose, with the regional benchmark index heading for its second day of gains, after Federal Reserve Chairman Ben S. Bernanke said he’s prepared to do more to stimulate U.S. growth if needed.

Nikkei 225 9,561.83 +0.82 +0.01%

Hang Seng 20,798.8 +152.51 +0.74%

S&P/ASX 200 4,375.2 +14.75 +0.34%

Shanghai Composite 2,404.7 -2.12 -0.09%

Samsung Electronics Co., South Korea’s biggest consumer electronics maker, climbed 2.7 percent. Hitachi Chemical Co. jumped 6.7 percent in Tokyo as Credit Suisse Group AG raised its rating to outperform, the equivalent of buy, after the supplier of materials used in semiconductors forecast higher earnings in the year ending March 2013.

Fanuc Ltd. sank 6.1 percent after the maker of factory robots said first-half operating profit will fall.