Economics

U.S. Stocks Rise as Gains by Commodity Producers Outweigh Europe

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U.S. stocks rose, paring a weekly loss in the Standard & Poor’s 500 Index, as gains among commodity producers helped overcome debt-crisis concerns after Fitch Ratings said it may cut ratings of European nations.

Halliburton Co. and Chevron Corp. increased at least 1.2 percent, pacing gains among energy companies. Banking shares in the S&P 500 rose 1.2 percent as a group, trimming an earlier rally. Research In Motion Ltd. fell 11 percent after the company delayed the release of a new generation of BlackBerry devices. Zynga Inc., the largest maker of games for Facebook, declined 5 percent in its first day of trading.