Every share at $.46 was bought, and now someone is will to be generous and sell their shares for $.44???? With volume of over 1.6M before mid-day? The volume and interest are there. There's no risk of not being able to sell higher. Unless it's done intentionally.
Fortunately the demand is REALLY outstripping the supply and anyone selling to drop the pps is just getting sucked up. Volume is driving the pps rise. Supply vs Demand.