Options Brief: Thoratec Corporation (THOR)

Shares of Thoratec Corporation THOR are lower on the session by 6.50%, trading at $29.08. Overall call volume is now running at 2.98x the daily average, with 6% of all calls traded being purchases on the offer. 1,164 contracts have traded on the session so far. Thoratec Corporation is a manufacturer of mechanical circulatory support products for use by patients with heart failure. The company develops, manufactures and markets products that are used by physicians and hospitals for cardiac assist, vascular and diagnostic applications.