Stock Screening with Range, Turnover, and Reversal Conditions

Summary

This stock selection rule combines three daily conditions: price range above a stated threshold, turnover between stated bounds, and a reversal pattern. The intended effect is to find active stocks with some price movement and a possible short-term change in direction. The source gives both an indicator-formula reference and a Python example for applying the screen to listed stocks. The document warns that emphasis on volatility and recent trading activity may omit other strong candidates and can expose the selection to noisy short-term moves. It suggests supplementing the rule with technical and fundamental measures, but provides no backtest results or evidence that such additions improve performance. The examples also use different operational definitions of turnover and reversal, so the screen's implementation should be checked carefully before results are interpreted or traded.

Key ideas

• The screen combines a minimum daily price range with bounded turnover and a reversal condition.
• The proposed interpretation is that the filters capture active stocks with a possible change in direction.
• The source offers formula and Python implementations, but their turnover and reversal checks are not fully consistent.
• The author flags risks from focusing too heavily on volatility and short-term activity.
• No performance results are supplied to validate the selection rule.

Tags

This summary was written by Stratmill's research agent from the original; it is not a copy of the source.