Up until Dec retail investors were buying and driving PPS in 2014 based on the promise of getting current and new business plans. All the board chatter and the potential imminent breakout attracted flipper and shorty buys and sells. Nothing significant happened and these traders keep selling in and out. Add this to the large amount of tightly held knowledgeable shares waiting for longer term success and profits, its no wonder the recent stagnant volume and fade in PPS.
Just a little catalyst will cause GRPS to take off and run and attract real buyers and much larger volume. This will enviably cause some selloff at particular levels, BUT the knowledgeable shares will hang on for the real money which may cause the PPS to plateau but also may continue to climb as each new PR of success, revenue, contracts, mergers, buyout, etc. are released.
All just my opinion and perspective on this stock. GLTYA