The stock demonstrated a mixed performance when compared to some of its competitors Monday, as Roche Holding AG Part. Cert.
fell 0.46% to $323.54, Merck & Co. Inc.
rose 1.37% to $94.41, and Pfizer Inc.
rose 0.56% to $51.88. Trading volume (5.9 M) remained 1.8 million below its 50-day average volume of 7.7 M.