Why Petroleo Brasileiro SA Petrobras (ADR) (PBR), Sarepta Therapeutics Inc (SRPT) and Valeant Pharmaceuticals Intl Inc (VRX) Are 3 of Today’s Worst Stocks By: InvestorPlace May 23, 2016 at 16:57 PM EDT Read More >> Related Stocks: Petrobras - Petroleo Brasileiro S.A. Sarepta Therapeutics Valeant Pharmaceuticals International, Inc.