ACV Auctions' positive earnings report, showing both an EPS beat and a significant revenue increase, typically would be expected to have a positive short-term impact on the stock price. However, historical context shows that despite past earnings beats, the stock experienced a slight drop the day after last quarter's earnings, indicating that market reaction can be unpredictable. The positive earnings surprise and revenue growth are strong indicators of company performance, but investor sentiment and market conditions will ultimately determine the short-term stock movement.