(NEW YORK)Oppenheimer & Co. started coverage on ViroPharma Inc. Friday with a "Perform" rating, taking a cautious position on the company over concern that competitors for its core products ...READ MORE

Among the stock activity stories for Friday, Nov. 21, from AP Financial News: CHARLOTTE, N.C. (AP)--KeyCorp shares tumbled Friday, as investors punished the regional bank for slash...READ MORE

(EXTON, Pa.)ViroPharma Inc. on Wednesday released new data on the effectiveness of its drug Cinryze against a hereditary disorder that causes dangerous swelling. ViroPharma plans to begin mark...READ MORE

Among the stock activity stories for Tuesday, Nov. 11, from AP Financial News: BOSTON (AP)--Shares of Genworth Financial Inc. sank to the stock's all-time low Tuesday, a day after ...READ MORE

(NEW YORK)Shares of ViroPharma Inc. dove Tuesday after likely rival Optimer Pharmaceuticals Inc. said patients taking its developing gastrointestinal infection drug had a higher cure rate an...READ MORE

Among the stock activity stories for Tuesday, Nov. 11, from AP Financial News: NEW YORK (AP)--Shares of General Motors Corp. plunged to their lowest price since the days of World W...READ MORE

(NEW YORK)Shares of Optimer Pharmaceuticals surged in premarket trading after the company said its developing gastrointestinal infection treatment was more effective than a potential competi...READ MORE