FreightCar America ( RAIL) shares surged on Wednesday, a day after the railcar maker reported earnings that beat estimates, leading the railroad sector higher. The Chicago-based company's shares were up $1.19, or 7.3% to $17.48. Shares of Guangshen Railway ( GSH) of China were up 93 cents, or 6.1%, to $16.26. Burlington Northern Santa Fe ( BNI), a holding of Warren Buffett'sBerkshire Hathaway ( BRK.A), was up 78 cents, or 1.2% to $63.72. Shares of CSX ( CSX) were up 37 cents, or 1.4% to $27.85. Union Pacific ( UNP) shares were up 15 cents, or 0.4% to $40.96.