Imperial have you traded ZN very long? Did you have a play on ZN last year 7/7/17 when they hit high of $6.90 and did your charts say load the boat on 3/28/18 on the BEAR RAID short covering when it hit low of $3.00 ? Just sayn' there is an obvious reason for the recent action.
Like in politics and world events "things just don't happen"