'ive been had'
If what you say is true PPS should have been well north of $4. What happened was some MM's were "circulating" shares in certain PPS ares so they can cover small part of their shorts. So, the actual volume is no more than 1MM shares.
To know what I mean, look at last Oct's runup. Just before the runup short interest was 8MM shares. Then, two weeks later and some 160MM shares traded, short interest decreased by less than 1MM shares and the PPS moved nice 100%.
The idea is NOT all MM's cover. They take big chance/gamble and they usually cover when their shorted price near the bottom. Most MM's shorted at $5 and higher. So, they are in NO rush to cover.