ZEN Graphene Solutions Ltd. (OTCMKTS:ZENYF – Get Free Report) crossed below its 50 day moving average during trading on Tuesday . The stock has a 50 day moving average of $2.84 and traded as low as $2.60. ZEN Graphene Solutions shares last traded at $2.84, with a volume of 38,800 shares traded. ZEN Graphene Solutions […]