Earnings gains from GM, others power early gains in US stock indexes; 3M, Caterpillar lead Dow

Markets Associated Press

Earnings gains from General Motors, 3M and other big companies are driving stocks sharply higher in early trading.

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GM rose 2 percent after reporting that its third-quarter profit doubled thanks to big earnings from SUV and truck sales.

Caterpillar, 3M and Southwest Airlines also gained after reporting earnings that pleased investors. AT&T lost 2 percent after its results fell short of analysts' forecasts.

The Standard & Poor's 500 index rose 19 points, or 1 percent, to 1,946 as of 9:35 a.m. Eastern time Thursday.

The Dow Jones industrial average rose 200 points, or 1.2 percent, to 16,659. The Nasdaq composite rose 41 points, or 1 percent, to 4,424.

Bond prices fell. The yield on the 10-year Treasury note rose to 2.26 percent.