In other trading:
— Warnaco Group Inc. dropped over 6 percent after the clothing maker lowered its 2012 forecast and said that its first-quarter net income fell, hurt by the weak European economy.
— Aon Corp. fell almost 6 percent after the insurance broker reported first-quarter net income fell 3 percent due to higher costs and unfavorable currency exchange rates.
— LinkedIn Corp. rose 7 percent after announcing late Thursday that its first-quarter profit more than doubled, topping expectations. The social networking company also announced an acquisition.
— Tilly's Inc. climbed 8 percent in the clothing retailer's debut on the New York Stock Exchange. Tilly's sells surf-inspired and casual West Coast-styled clothing and accessories.
— Einstein Noah Restaurant Group Inc. soared 19 percent after the owner of bagel chain Noah's Bagels said it is considering strategic alternatives, including a possible sale of the company
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