* "Tremendous progress" cited in bailout talks
* Market shrugs off bleak data, GE's profit warning
* Financial shares lead rally
* Dow and S&P 500 up 2.4 pct, Nasdaq up 2.1 pct
(Updates to afternoon, changes byline)
By Steven C. Johnson
NEW YORK, Sept 25 (Reuters) - U.S. stocks soared on Thursday as Congress neared a deal on a $700 billion financial sector bailout that investors hope will thaw credit markets and revive lending.
All three major U.S. stock indexes jumped almost 3 percent to session highs in anticipation of a bailout agreement in afternoon trading. Stocks pulled back slightly, but were still up over 2 percent as a report from the Wall Street Journal online said the bailout bill would approve a $700 billion fund, but it would be paid in installments.
Bank shares spearheaded the rally, with JPMorgan Chase <JPM.N> and Bank of America <BAC.N> among the biggest boosts for the Dow and S&P 500.
Fear that Congress would delay the rescue package weighed on stocks earlier this week, but optimism waxed after Sen. Chris Dodd, chairman of the Senate Banking Committee, said on Thursday that House and Senate negotiators had reached "fundamental agreement" on the principles of a bailout.
The Treasury Department declined to comment on earlier statements from Sen. Charles Schumer, the New York Democrat who chairs the congressional Joint Economic Committee, that a deal could be reached Thursday.
"I certainly think that Congress will pass something and that will help for a little while. It gives us some time to unwind some of the positions and see where we stand when the smoke clears," said Warren Simpson, managing director at Stephens Capital Management in Little Rock, Arkansas.
The Dow Jones industrial average <
> was up 262.60 points, or 2.42 percent, at 11.087.77, after shooting up nearly 300 points -- or almost 3 percent -- to a session high at 11,129.19 on anticipation of an agreement on the bailout bill.The Standard & Poor's 500 Index <.SPX> was up 28.85 points, or 2.43 percent, at 1,214.72, slightly below a session high at 1,220.03. The Nasdaq Composite Index <
> was up 44.70 points, or 2.07 percent, at 2,200.38, also near its session high at 2,210.74.Late on Wednesday, U.S. President George W. Bush said the United States was in a serious financial crisis.
Companies that are often seen as economic bellwethers, such as IBM <IBM.N>, up 3.7 percent at $120.82, and Caterpillar <CAT.N>, up 1.3 percent at $62.52, gained on hopes the rescue package could spur a pickup in consumer and business spending.
Bank of America shares rose 6.9 percent to $35.33 and JPMorgan shares rose 8.6 percent to $44.
Nike <NKE.N> shares rose almost 10 percent to $65.13 after earnings from the world's largest athletic footwear and apparel company beat Wall Street estimates.
The market's advance came despite economic reports that were bleak all around and a profit warning from General Electric <GE.N>.
One report showed that the number of people filing for jobless benefits unexpectedly surged in the latest week.
Other government data showed a sharper-than-expected slide in orders for durable goods and a drop in sales of new single-family homes in August to their lowest in 17 years.
The grim economic news and a likewise gloomy outlook for corporate earnings mean an equities rally driven by the rescue plan are likely to be short-lived, said Keith Hembre, chief economist at First American Funds in Minneapolis.
"It will probably be measured in weeks, not months," he said. "We're still playing defense, and there's nothing in the plan that suggests it will improve domestic demand or turn the cyclical downtrend in growth, jobs or corporate earnings." (Additional reporting by Kristina Cooke; Editing by Jan Paschal)