 Ballantyne Strong Inc NYSEAMERICAN:BTN crossed above its 200-day moving average during trading on Friday . The stock has a 200-day moving average of 0.00 and traded as high as 1.65. Ballantyne Strong shares last traded at 1.58, with a volume of 18,800 shares. Ballantyne Strong NYSEAMERICAN:BTN last posted its quarterly earnings data on Tuesday, May ... 