This one-day volume growth resulted in a record-breaking increase of 299%, as compared to the 65-Day Volume Moving Average. SMP's total volume now sits at 668K. The -1.37% price change was insignificant, leaving SMP's price at $36.77. This volume move could indicate a change in trend, and may be a buy signal for investors. A.I.dvisor found 15 similar cases, 11 of which were successful. Based on this data, the odds of success are +73%.