Options Brief: XenoPort, Inc. (XNPT)

Shares of XenoPort, Inc. XNPT are lower on the session by 10.94%, trading at $5.94. Overall call volume is now running at 2.52x the daily average, with 36% of all calls traded being purchases on the offer. 3,824 contracts have traded on the session so far. XenoPort, Inc. is a biopharmaceutical company focused on developing and commercializing a portfolio of internally discovered product candidates, which utilizes the body's natural nutrient transport mechanisms to improve the therapeutic benefits of existing drugs.