Retail TradersAs most of you probably already know, the knock down of PTA share price is due solely to retail traders/investors/swing traders. It certainly is not due to large shareholders or fund selling. Please see trade volume for past couple months here:
https://finance.yahoo.com/q/hp?s=PTA.V+Historical+Prices
Largest volume for March was Friday at 4.553 million, but in $ value it's only $1.14 million using an average share price of 25 cents. The only big volume day that would have been due to funds/large shareholders was Feb 28th but the share price hardly moved (opened 45 cents and closed 44 cents), meaning there could have been lots of crosses by the same fund/large shareholder buying in one account and selling in the other due to month end re-balancing.
I think PTA might have put in a bottom today seeing that it closed at 23 cents for two consecutive days, look for buyers to start stepping in from tomorrow.