The backtest results indicate that ABM experiences a high 75% win rate in the 3-day period following earnings beats, with an impressive average 3-day return of 103.43%. However, the positive effect diminishes quickly, as 10-day and 30-day win rates drop to 8.33% and 0.00%, respectively, with negligible returns beyond short-term gains. This suggests ABM's stock reacts strongly but briefly to earnings beats.

The results analyze a pattern of swift, substantial short-term gains that fade rapidly within about a month.

Investors might consider capitalizing on immediate post-earnings moves but should be cautious holding ABM longer term after earnings surprises.

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The backtest shows that when the Commercial Services & Supplies industry beats earnings expectations, the event frequently leads to a negative impact, occurring in 273 instances with a maximum return drop of 23.48% one day after the event. This negative response suggests that despite earnings beats, other factors may be driving stock weakness in this sector shortly after announcements. Investors should be cautious about assuming positive earnings surprises will immediately translate to gains and consider the potential for short-term declines following such events in this industry.

Backtest ABM Earning Beats Expectations

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