Last month, Mr. Obama’s campaign manager, Jim Messina, traveled to New York for back-to-back meetings with Wall Street donors, ending at the home of Marc Lasry, a prominent hedge fund manager, to court donors close to Mr. Obama’s onetime rival, Hillary Rodham Clinton. And Mr. Obama will return to New York this month to dine with bankers, hedge fund executives and private equity investors at the Upper East Side restaurant Daniel.

“The first goal was to get recognition that the administration has led the economy from an unimaginably difficult place to where we are today,” said Blair W. Effron, an investment banker closely involved in Mr. Obama’s fund-raising efforts. “Now the second goal is to turn that into support.”

The president’s top financial industry supporters say they are confident that the support Mr. Obama needs will ultimately be there, despite the financial industry’s unhappiness over his efforts to tighten regulation of their businesses. But it is clear that those supporters will have to work much harder to win over the financial services industry than they did in 2008, before Wall Street’s bust, the subsequent clashes over policy and the sometimes bitter personal differences that lingered afterward.

Executives at large investment banks, a group that gave generously to Mr. Obama in his last campaign, are remaining on the sidelines for now. Only a small handful of such donors have appeared in Mr. Obama’s joint campaign filings with the Democratic National Committee, though officials there said more would appear in the coming weeks.

Some traditional heavy hitters in Democratic Wall Street fund-raising have stepped out of the game. They include Maureen White and her husband, Steven L. Rattner, a founder of the Quadrangle Group, whose Fifth Avenue living room was a critical conduit between Wall Street and Democratic candidates in the years before Mr. Rattner joined the Obama administration to help restructure the auto industry. The couple did not resume their old role after Mr. Rattner left government, and he was caught up last year in an investigation into kickbacks to New York’s state pension fund.