What do CM's past EPS surprises suggest about future accuracy?

China Mobile's (CM) past EPS surprises suggest that while there is potential for positive returns, the accuracy of such gains is uncertain. The backtest data shows a 3-day win rate of 50%, a 10-day win rate of 56.25%, and a 30-day win rate of 43.75%, indicating that short-term gains are more likely than long-term ones. The maximum return observed following an EPS surprise was 4.86% over 30 days, suggesting that while there is potential for gains, they are not consistently high.