The appliance retailer has exhibited record-breaking volumes the past 9 days, with an average daily volume spike of 396% above the expected 65-day average. The -0.11% price change was insignificant, leaving GTLS's price at $198.96. This volume move could indicate a change in trend, and may be a buy signal for investors. A.I.dvisor found 6 similar cases, 5 of which were successful. Based on this data, the odds of success are +83%.