ZEN Graphene Solutions Ltd. (OTCMKTS:ZENYF – Get Free Report) shares rose 10.9% on Monday . The stock traded as high as $2.84 and last traded at $2.84. Approximately 38,800 shares changed hands during mid-day trading, a decline of 31% from the average daily volume of 56,433 shares. The stock had previously closed at $2.56. ZEN […]