S&P 500 Caps Best Weekly Gain Since June Amid Black Friday Sales

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U.S. stocks climbed, giving the Standard & Poor’s 500 Index its biggest weekly rally since June, after data showed German business confidence unexpectedly expanded and the American holiday shopping season began.

Hewlett-Packard Co., Dell Inc. and Advanced Micro Devices Inc. gained more than 4.1 percent as computer companies led the advance. Research In Motion Ltd. jumped 14 percent in U.S. trading today after an 18 percent increase in Toronto yesterday on optimism over the BlackBerry maker’s newest smartphones. Macy’s Inc. and Bed Bath & Beyond Inc. added at least 1.7 percent as millions visited stores on Black Friday.