A report on consumer prices showed that inflation remains subdued, while a report on the housing market was mixed.
The data underscored the lackluster outlook for the economy and raised hopes the flow of cheap money from the Fed will continue, said Bruce McCain, chief investment strategist at Key Private Bank.
"Ultimately, prices have to rest on the fundamentals," he said. "But for now the bulls are becoming a bit more emboldened." The absence of inflation, he added, "gives the Fed plenty of room to keep the pedal to the floor."
The Fed is not expected to announce any major change in policy at the end of it's latest two-day meeting, which started Tuesday. But investors are hoping chairman Ben Bernanke will provide some clues about when the central bank could begin tapering the pace of its bond purchases. Bernanke is set to speak at a news conference Wednesday afternoon.
"Some people think they're going to taper tomorrow," said Keith Springer, president of Springer Financial Advisors in Sacramento, Calif. "I think there's zero chance that happens."
Springer said the Fed is more concerned about the threat of deflation, adding that central bankers could decide to boost the $85 billion per month bond-buying program if the economy takes a turn for the worse.
"If they reaffirm that it's not going to happen tomorrow, and that they're going to wait until the fall, I think the market will rally to new highs," said Springer.
Meanwhile, there was speculation about who will succeed Bernanke. In a PBS interview that aired late Monday, President Obama told Charlie Rose that Bernanke has "already stayed a lot longer than he wanted, or he was supposed to."
Sony(SNE) shares climbed 3%after Dan Loeb's Third Point hedge fund increased its stake and is upping the pressure on the company to agree a partial spin-off of its entertainment business.
Nokia(NOK) shares rose after a report in the Financial Times raised speculation about a potential merger with China's Huawei. Meanwhile, shares of BlackBerry(BBRY) rose rose on rumors about a deal with Lenovo(LNVGF)
SPAM gets slammed
Shares of Hormel(HRL) fell after the processed meat company lowered its earnings outlook for the year.