Best day of 2012 for Dow industrials and S&P 500

NEW YORK (MarketWatch)
U.S. stocks surged Wednesday, with the Dow industrials and S&P 500 both tallying their best day this year, on increasing optimism that central bankers would move to bolster the economy
"It appears the market is under the belief that Uncle Ben and his band of merry makers are going to be coming to the resue," Bob Pavlik, chief market strategist at Banyan Partners, said of Federal Reserve Chairman Ben Bernanke and other Federal Open Market Committee members
The Dow Jones Industrial Average  climbed 286.84 points, or 2.4%, to 12,414.79
The S&P 500 Index  advanced 29.63 points, or 2.3%, to 1,315.13
The Nasdaq Composite added 66.61 points, or 2.4%, to 2,844.72