This one-day volume growth resulted in a record-breaking increase of 215%, as compared to the 65-Day Volume Moving Average. NPO's total volume now sits at 438.4K. The +2.56% price change was insignificant, leaving NPO's price at $149.1. This volume move could indicate a change in trend, and may be a buy signal for investors. A.I.dvisor found 12 similar cases, 10 of which were successful. Based on this data, the odds of success are +83%.