This four-day volume growth resulted in a record-breaking increase of 97%, as compared to the 65-Day Volume Moving Average. BLKB's total volume now sits at 443.1K. The -2.70% price change was insignificant, leaving BLKB's price at $64.12. This volume move could indicate a change in trend, and may be a buy signal for investors. A.I.dvisor found 21 similar cases, 14 of which were successful. Based on this data, the odds of success are +67%.