Facebook Surges as Mobile-Advertising Projections Lure Investors

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Facebook Inc. is climbing back from a stock plunge last year that made it one of the worst performing technology initial public offerings of 2012.

The shares set a six-month high yesterday, advancing 1.3 percent to $31.72 in New York. As concerns ease over the social network’s ability to boost revenue, the stock has rebounded 79 percent from a record low in September.