Unverified60% confidenceFactExact time
Look-ahead bias refers to the use of information that was not yet available at the time of prediction—for example, using earnings data announced after the close of trading on a given day to predict that day's price movement.
2
Sources
60%
Confidence
Long-term
Relevance
8/11/2026
First Seen
Sources
金融机器学习模型为何难以评估？核心挑战与避坑指南
Related Claims
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