This one-day volume growth resulted in a record-breaking increase of 294%, as compared to the 65-Day Volume Moving Average. PTGX's total volume now sits at 3.7M. The -0.85% price change was insignificant, leaving PTGX's price at $52.6. This volume move could indicate a change in trend, and may be a buy signal for investors. A.I.dvisor found 11 similar cases, 10 of which were successful. Based on this data, the odds of success are +90%.