Wall Street pulled off a stunning comeback Wednesday, surging higher in late trading and wiping out what looked to be yet another precipitous decline. The Dow Jones industrials, down more than 323 points in earlier trading, ended the day with an advance of just under 300 points, according to preliminary calculations.

"There does come a point and time when the market itself recognizes that it got out of hand, and that is when bargain-hunters can come in," said Peter Cardillo, chief market economist at Avalon Partners.

The Fed's decision Tuesday to lower its federal funds rate by 0.75 percentage point to 3.5 percent has been met with some skepticism, but it gave intrepid investors Wednesday a reason to buy the severely dented stocks in the financial sector.

"You might say this is a belated reaction to what the Fed did this week, compounded by hopes for the Fed to do more next week," Cardillo said. Traders who bet on the Fed's target fed funds rate were pricing in on Wednesday a 100 percent chance of a 0.50 percentage-point cut by the central bank when it meets next week.

"The early leaders in a market recovery tend to be banks, REITs (real estate investment trusts) and homebuilders, as these are the groups that typically would benefit first from a turnaround. And those have been the market leaders this week," Goldman said. "What has happened is the Fed is flooding the system with liquidity and eventually we should see some traction in the economy. And stocks tend to respond first."

The Dow Jones industrial average rose 298.98, or 2.50 percent, to 12,270.17.