The appliance retailer has exhibited record-breaking volumes the past 5 days, with an average daily volume spike of 260% above the expected 65-day average. 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, 4 of which were successful. Based on this data, the odds of success are +57%.