Stocks rise on Dow Chemical deal, Bernanke

By Kristina Cooke

NEW YORK (Reuters) - Stocks rose on Thursday, helped by optimism about a major deal in the chemicals sector and after the Federal Reserve chairman said the central bank and the government are focused on stabilizing the financial system.

Dow Chemical's $15.3 billion bid for Rohm and Haas ROH.N gave investors confidence that there was value in the sector. Rohm and Haas stock soared 64 percent and was one of the top advancers in the S&P 500.

Federal Reserve Chairman Ben Bernanke and U.S. Treasury Secretary Henry Paulson told Congress they were doing everything possible to restore calm to financial markets, but stressed to lawmakers that a longer-term regulatory overhaul was vital to avert future crises.

Alcoa (AA.N) helped drive the Dow upward after aluminum prices hit an all-time high on output cuts in top producer China. Apple's (AAPL.O) stock rose, lifting the Nasdaq, a day before it is set to launch the latest version of its popular iPhone.

But a $5.60 jump in the price of oil amid threats to production in Nigeria and Brazil and an additional missile test by Iran kept the stock market's gains in check. The higher oil prices raised concerns about consumer spending and corporate profits, hurting sectors from retailers to automakers.

"Bernanke and Paulson are, in essence, trying to calm the market," said Bucky Hellwig, senior vice president at Morgan Asset Management, in Birmingham, Alabama.

The Dow Jones industrial average .DJI rose 81.58 points, or 0.73 percent, to 11,229.02, while the Standard & Poor's 500 Index .SPX gained 8.70 points, or 0.70 percent, to 1,253.39. The Nasdaq Composite Index .IXIC was up 22.96 points, or 1.03 percent, to close at 2,257.85.

The gains came a day after the S&P 500 joined the Dow industrials and the Nasdaq in a bear market.