Better-than-expected Chinese data and takeover deals helped bolster Wall Street, which also welcomed a Russian proposal to put Syria's chemical weapons under international control in an effort to avert US military intervention.
Shares of Molex soared, last up 31.6 per cent, after Koch Industries agreed to buy the maker of electronic components for US$7.2 billion. In other deals, Ares Management and the Canada Pension Plan Investment Board reached agreement to buy Neiman Marcus, an American luxury retail chain, for US$6 billion.
"There is a nice parade of deals and that is always suggestive of a healthy market," Quincy Krosby, market strategist at Prudential Financial in Newark, New Jersey, told Reuters.
Oil prices fell as concern about the Syrian conflict escalating eased after President Bashar al-Assad's government welcomed a Russian proposal to place its chemical weapons under international control. The suggestion comes a day before US President Barack Obama is scheduled to present an Oval Office address seeking support for American military action to oust Assad.
"The delays in agreeing to any action in Syria are sending Brent lower and WTI is along for the ride," Bill O'Grady, chief market strategist at Confluence Investment Management in St Louis, told Bloomberg News. "The president has a tough row to hoe. The ramifications of him not getting a yes vote are pretty big."