Deal Talk Boosts Stocks Ahead of Bernanke

BHP Billiton and Rio Tinto were reportedly eyeing a $40 billion takeover bid for Alcoa. Also in focus: a GM upgrade, 3M's stock buyback

Stocks finished broadly higher Tuesday, paced by the blue chips amid buyout rumors, an analyst upgrade, and a stock buyback announcement. Oil prices climbed on an upwardly revised demand forecast. Trading volume was moderate ahead of Federal Reserve Chairman Ben Bernanke's testimony to Congress on Wednesday and Thursday, says Standard & Poor's Equity Research.

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