 Shares of GSE Systems NYSEAMERICAN:GVP passed above its 200-day moving average during trading on Thursday . The stock has a 200-day moving average of 0.00 and traded as high as 1.07. GSE Systems shares last traded at 1.03, with a volume of 13,600 shares trading hands. GSE Systems NYSEAMERICAN:GVP last announced its earnings results on ... 