Brazilian stocks, including PBR, were also boosted by lower-than-expected inflation data in Latin America's largest economy last month. On a strong day for stocks, Chemours Co (NYSE: CC ), Petroleo Brasileiro SA Petrobras (ADR) (NYSE: PBR ) and Polycom Inc (NASDAQ: PLCM ) were among Friday's top performers. Petroleo Brasileiro SA Petrobras (ADR) (PBR) Petroleo Brasileiro SA, Brazil's state-controlled oil company, rose nearly 5% Friday as oil prices finished modestly higher.