Greenbrier Companies (NYSE:GBX) reported fiscal Q2 EPS of $0.57, beating estimates by $0.11.Revenues in the quarter rose 61.2% to $458 million, beating estimates by $18 million.Greenbrier Cos (NYSE:GBX) has potential upside of 65% based on a current price of $19.7 and an average consensus analyst price target of $32.5.