Exelixis' (EXEL) shares were down more than 6% in recent Friday trading after Oppenheimer downgraded the company's stock to perform from outperform, and adjusted its price target to $33 from $41.
Trading volume stood at over 2.1 million shares against a daily average of about 2.3 million.
Price: 31.99, Change: -2.14, Percent Change: -6.27