CERT's Q4 earnings surprise had a negative impact on the company's annual net profit. The 3-Day win rate was 16.67%, the 10-Day win rate was 50.00%, and the 30-Day win rate was 33.33%, indicating that the stock price tended to perform poorly in the short term following the earnings release. The maximum return observed was only 2.23% over 30 days, suggesting that the positive momentum from the earnings beat expectations was short-lived. The maximum return day was recorded on day 63, further emphasizing that the positive impact of the earnings surprise was limited in terms of annual performance.