Among the stock activity stories for Thursday, Dec. 3, from AP Financial News:
NEW YORK (AP) _ Shares of Aeropostale fell 11 percent after the company offered an outlook that disappointed investors and reported a key November sales comparison that fell short of expectations.
NEW YORK (AP) _ Shares of hospital operator Tenet Healthcare Corp. rose following positive comments from analysts, including one who upgraded the stock to "Buy."
NEW YORK (AP) _ Synopsys Inc. shares dropped after the maker of chip testing and development software reported lower quarterly profit and sales as well as higher expenses.
NEW YORK (AP) _ Shares of Sigma Designs Inc. took a hit after the chip designer posted a third-quarter loss amid a sales decline linked to lower demand for its Internet protocol television products.