The quiet before the storm! Often happens:
Kind of like the ocean water pulling back out to sea off the beach before a tsunami hits. I have so often seen over the many years a stock's volume dry way up just before a major move higher begins, penny stocks and otherwise, a very common thing. Doesn't mean it will happen here, but there is certainly enough going on that it very well could.
The chart and recent price/volume action would certainly support this as well. Either way, PCTL is a major global, growth play in the birthing! Don't be left behind!
Long & Strong!