WASHINGTON (AP) — House and Senate negotiators reached a dawn agreement Friday on legislation that redefines federal oversight of Wall Street and, following the signing of the health care act in March, adds another milestone to mark the Obama presidency.

President Barack Obama declared victory Friday after congressional negotiators reached agreement on a sweeping overhaul of rules overseeing Wall Street.

Lawmakers shook hands on the compromise legislation at 5:39 a.m. after Obama administration officials helped broker a deal that cracked the last impediment to the bill — a proposal to force banks to spin off their lucrative derivatives trading business. The legislation touches on an exhaustive range of financial transactions, from a debit card swipe at a supermarket to the most complex securities deals cut in downtown Manhattan.

Speaking to reporters as he left the White House to attend an economic summit of world leaders in Canada, the president said he was gratified by Congress’ work and said the deal included 90 percent of what he had proposed. He said the bill, forged in the aftermath of the 2008 financial meltdown, represents the toughest financial overhaul since the Great Depression.

“We’ve all seen what happens when there is inadequate oversight and insufficient transparency on Wall Street,” he said. “The reforms working their way through Congress will hold Wall Street accountable so we can help prevent another financial crisis like the one that we’re still recovering from.”

Asked by reporters whether he can get the financial measure through the Senate, Obama said, “You bet.”

With the new health care law, passage of the legislation would give Obama a second major triumph that he and Democrats can take to voters as they head toward tough congressional elections in November. Senate Democrats are now trying to coalesce around the third big-ticket item on Obama’s agenda, passage of clean energy legislation.

Obama said he will discuss the regulations with other leaders at the Toronto meeting because the recent economic crisis proves that the world’s economies are linked.

Lawmakers hope the House and Senate will approve the compromise legislation by July 4. Republicans complained the bill overreached and tackled financial issues that were not responsible for the financial crisis.

The bill would set up a warning system for financial risks, created a powerful consumer financial protection bureau to police lending, forced large failing firms to liquidate and set new rules for financial instruments that have been largely unregulated.

“It took a crisis to bring us to the point where we could actually get this job done,” Senate Banking Committee Chairman Christopher Dodd said.

In its breadth, the legislation would affect working class homebuyers negotiating their first mortgage as well as international finance ministers negotiating international regulatory regimes.

The bill came together in during a time of high unemployment for American workers, huge bonuses for bankers and rising antipathy toward bank bailouts.

“It is reassuring to know that when public opinion gets engaged it will win,” said Rep. Barney Frank, the chairman of the House-Senate panel that merged competing bills.

House negotiators voted a party line 20-11 in favor of the final agreement; senators voted 7-5, also along party lines.

One financial analyst, Richard Bove of Rochdale Research, said he believed the measure would have little impact because banks would find ways to hit consumers with more fees. “The good things coming out of this bill is virtually zero,” he said. “Did it help the U.S. economy? Did it solve any problems? The answer is no and no.”

But Jim Dunigan, managing executive of investments for PNC Wealth Management in Philadelphia, said investors are relieved that they now know what the bill will look like. “It clears the playing field a little bit so at least you know what you’re up against and you can start to plan around that. The no man’s land that they were in while they were crafting the final bill left too much uncertainty,” Dunigan said.

Financial stocks rose in early trading Friday, as traders were relieved that banks would be allowed to continue most kinds of transactions. JPMorgan Chase & Co. rose 2 percent, while Citigroup Inc. climbed 2.1 percent.

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Frank and Dodd set a furious pace for lawmakers in their last day of talks. Their goal, in part, was to hand Obama a deal going into this weekend’s summit. The compromise did not address any restructuring of the government-related mortgage giants Fannie Mae and Freddie Mac. Republicans tried to shift the debate to those two, to no avail.

Overhauling those agencies “should have been our top priority,” said Rep. Spencer Bachus, R-Ala., the top Republican on the House Financial Services Committee. He said the bill focused on many areas unrelated to the financial crisis.

The government took over Fannie and Freddie in 2008 after they suffered heavy loan losses in the housing crash. Their collapse has cost $145 billion and the Obama administration has pledged to cover unlimited Fannie and Freddie losses through 2012, lifting an earlier cap of $400 billion.

In a blow to Obama, the consumer protection agency would not regulate auto dealers, even though they assemble loans for millions of car buyers. Payday lenders and check cashers would be regulated, but enforcement would be left to states or the Federal Trade Commission.

To pay for the costs of the bill, negotiators agreed to assess a fee on banks with assets of more than $50 billion and hedge funds of more than $10 billion in assets to raise $19 billion over 10 years.

The final agreement capped an all-night marathon session of public and private deal making. House Speaker Nancy Pelosi, D-Calif., stepped in to press agreement on one of the final obstacles.

As they worked toward the home stretch early Friday, negotiators softened a contentious Wall Street restriction that would force large bank holding companies to spin off their lucrative derivatives business.

The deal, negotiated between the White House and Sen. Blanche Lincoln, D-Ark., eliminated one of the last major sticking points.

Derivatives are complex securities often used by corporations to hedge against market fluctuations. But they also have become speculative instruments for financial institutions, the most notorious of which were credit default swaps that hedged against loan failures.

In the House, moderate Democrats and members of the New York congressional delegation fought to remove Lincoln’s language.

Under the agreement banks would only spin off their riskiest derivatives trades. Banks get to keep some of their lucrative business based on trades in derivatives related to interest rates, foreign changes, gold and silver. They could even arrange credit default swaps, the notorious instruments blamed for the meltdown, as long as they were traded through clearing houses. Banks could trade in derivatives with their own money to hedge against market fluctuations.

Negotiators also limited the ability of banks to carry out their own high-risk trades or invest in hedge funds and private equity funds.

Bank holding companies that have commercial banking operations would not be permitted to trade in speculative investments. But negotiators agreed to let bank holding companies invest in hedge funds and private equity funds, setting an investment limit of no more than 3 percent of their capital. There are no such conditions on banks now.

Copyright 2010 The Associated Press.