Three workers were seriously hurt in an explosion on Sunday at Petroleo Brasileiro Petrobras SA (ADR) (NYSE:PBR)’ 323,000-barrel-a-day Landulpho Alves Refinery (RLAM) outside the northeastern city of Salvador, the second serious accident at Brazil’s second-largest refinery in a week. Petroleo Brasileiro Petrobras SA (ADR) (NYSE:PBR) belongs to Basic Materials sector. Its net profit margin is 6.20% and weekly performance is 3.65%. On last trading day … Continue reading Traders Should Watch: Petroleo Brasileiro Petrobras (NYSE:PBR), Itau Unibanco (NYSE:ITUB), PetMed Express, Inc. (NASDAQ:PETS), United Natural Foods, Inc. (NASDAQ:UNFI), Adamas Pharmaceuticals (NASDAQ:ADMS)