This two-day volume growth resulted in a record-breaking increase of 351%, as compared to the 65-Day Volume Moving Average. ZH's total volume now sits at 2.2M. The -1.10% price change was insignificant, leaving ZH's price at $5.4. This volume move could indicate a change in trend, and may be a buy signal for investors. A.I.dvisor found 13 similar cases, 10 of which were successful. Based on this data, the odds of success are +77%.