This four-day volume growth resulted in a record-breaking increase of 269%, as compared to the 65-Day Volume Moving Average. ARCB's total volume now sits at 1.5M. The -2.49% price change was insignificant, leaving ARCB's price at $146.29. This volume move could indicate a change in trend, and may be a buy signal for investors. A.I.dvisor found 7 similar cases, 6 of which were successful. Based on this data, the odds of success are +86%.