Why American Airlines Group Inc (AAL), OraSure Technologies, Inc. (OSUR) and Petroleo Brasileiro SA Petrobras (ADR) (PBR) Are Three of Today’s Worst Stocks By: InvestorPlace June 13, 2016 at 16:42 PM EDT Read More >> Related Stocks: American Airlines Gp Orasure Tech Inc Petrobras - Petroleo Brasileiro S.A. Ultrapar Participacoes S.A. ADR