Screening Stocks for Daily Range and Recent Limit-Up Events

Summary

This stock-selection idea builds a candidate pool from shares with a daily high-low range greater than one percent, at least one limit-up event in the prior 25 days, and a limit-up event within the past month. The post interprets range as a sign of volatility and recent limit-ups as possible signs of market interest or expectations. It includes example formula and Python implementations using rolling counts of limit-up conditions.

The post gives no backtest, performance results, or evidence that the filters forecast future returns. It cautions that historical signals may not persist, limit-up moves can be speculative, and a recent limit-up does not ensure future strength. It suggests validating the screen with financial and technical measures and considering longer-term business prospects. The criteria appear to overlap because a limit-up in the past 25 days is also likely to fall within the broader recent-month window, depending on how the periods are counted. The examples would need review for data conventions and implementation details before use.

Key ideas

• The screen requires a daily high-low range above one percent and recent limit-up activity.
• It looks for at least one limit-up over a 25-day window and another within the recent-month window.
• The post interprets these conditions as volatility and possible market interest, rather than established predictors.
• The formula and Python example use rolling counts of limit-up events.
• The author warns about speculation and weak historical predictability and recommends broader validation.

Tags

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