The Government Accountability Office upheld a protest submitted by BAE Systems and Navistar International Corp. (NYSE: NAV) challenging the Pentagon's selection of Oshkosh (NYSE: OSK) to build 23,000 vehicles for the Army. Shares of Navistar climbed $1.75 to close at $36.03 while Oshkosh stock plunged $4.64 to close at $36.32.
