Can You Guess This Chart?

Think you know the markets? See if you can figure out stock based on the clues and charts below.

• Legg Mason Inc LM's Bill Miller said this company is one of his largest holdings at Tuesday's Delivering Alpha conference. 
• This company has been the target of short selling activity from an activist investor.
• Sympathy plays include Johnson & Johnson JNJ and Pfizer Inc. PFE

Answer: Valeant Pharmaceuticals Intl Inc VRX