Morning Market Losers

GameStop GME dropped 18.51% to $36.93 after the company cut its profit outlook for the holiday quarter. Rexahn Pharmaceuticals RNN plummeted 16.06% to $1.34 after the company initiated Phase IIa clinical trial of Archexin® in patients with metastatic renal cell carcinoma. Silicon Graphics International SGI dropped 14.18% to $11.92 after the company issued a weak forecast. The Descartes Systems Group DSGX dropped 14.07% to $13.50. Descartes' PEG ratio is 5.66.