Movers Roundup: Clearwire, Amazon

NEW YORK (AP) Clearwire Corp. shares slid Tuesday on the heels of its lackluster fourth-quarter results and disappointing revenue forecast, though the wireless Internet provider said it is still in active talks with Sprint Nextel Corp. regarding a WiMax collaboration.

NEW YORK (AP) Shares of Amazon.com Inc. rose Tuesday after its chief financial officer reiterated the online retailer's 2008 revenue guidance and said Amazon is scrambling to improve production of its new e-reader device, Kindle.

NEW YORK (AP) Shares of drug developer Salix Pharmaceuticals Ltd. fell to their lowest point in nearly five years Tuesday after the company said it swung to a fourth-quarter loss and its 2008 loss will be wider than Wall Street expects.

NEW YORK (AP) Shares of Sealy Corp. hit a new all-time low Tuesday after the mattress company said it expects commodity costs to rise and first-quarter sales to fall on continued weakness in its domestic business.

NEW YORK (AP) Shares of LeapFrog Enterprises Inc. jumped Tuesday after the maker of technology-based educational products posted a smaller fourth-quarter loss and an analyst upgraded the stock.

NEW YORK (AP) Shares of Novell Inc. fell sharply Tuesday after an analyst downgraded the business software maker, noting a recent rally in stock prices and saying the stock lacks a catalyst for further growth.

NEW YORK (AP) Shares of Terex Corp. tumbled Tuesday on analyst comments that other heavy equipment companies offer better potential near-term returns for investors.

NEW YORK (AP) Shares of Goodrich Petroleum Corp. and W&T Offshore Inc. fell more than 5 percent Tuesday after a BMO Capital Markets analyst cut his ratings on the two oil and natural-gas producers.

NEW YORK (AP) Shares of Buffalo Wild Wings Inc. fell Tuesday after a Robert W. Baird analyst said he was concerned that a slowdown in consumer spending and high commodity costs could slow the wing chain's growth.