Orexigen (OREX) jumps 14.5% after announcing it will provide a regulatory update on Friday...

|About: Orexigen Therapeutics, Inc. (OREX)|By:, SA News Editor

Orexigen (OREX) jumps 14.5% after announcing it will provide a regulatory update on Friday morning. The statement provides no details but investors widely expect to hear about obesity drug Contrave. Keep an eye on rivals' shares as well ahead of Friday's news: VVUS, ARNA -2.1%.