That's expected, it has been stuck in this trading range for a very long time. Those who are familiar with this range and missed the opportunity to buy at low $5 must be taking this opportunity to short it at this level and that's why the short interest is up big. I guess even some self-claimed long term investors are selling or shorting some here.
For me, no shorting, but unloaded my several hundred shares and wait for a pull back to play the game again.
Most of the first half of February we were in short cover trading range of 5-5,30. Only after 13-2- the news of the 11 Celutions sold in Europe was the price action upwards and around the squeeze trigger price of 5,95 and higher. So just 3 trading days untill 15-2.
Since than the PPS has held and creeping upwards even and we are knocking on the door of the break-out level of 6,50 and above.
I added 8100 shares after they anounced the 11 Celution sales. I was only mildly bulish before that. Without those sales there was no certainty as to the acceptance of the Celution system. I was only willing to invest X amount on potential. I am now investing on probable results. I believe there are alot more investors who have similar methodology. I am still adding to my position.