This one-day volume growth resulted in a record-breaking increase of 256%, as compared to the 65-Day Volume Moving Average. PRTA's total volume now sits at 5M. The +0.88% price change was insignificant, leaving PRTA's price at $5.75. This volume move could indicate a change in trend, and may be a buy signal for investors. A.I.dvisor found 8 similar cases, 8 of which were successful. Based on this data, the odds of success are +90%.