Screening Stocks by Price Range, Limit-Ups, and Prior-Day Low

Summary

The post presents a technical stock screen requiring daily amplitude above 1%, at least two limit-up events within a 500-day window, and a current close above the previous day's low. It gives indicator-style expressions for those conditions and proposes ranking candidates using amplitude, limit-up frequency, and closing price. A Python example is also included, though its use of intraday tick data and rolling calculations does not cleanly match the stated daily, 500-day criteria.

The rationale is that range and limit-up frequency may identify active stocks with upside potential, while the close-versus-prior-low condition adds a price filter. The post warns that the screen focuses on technical history, may omit longer-term context, and can include low-priced or financially troubled firms. It suggests combining technical and fundamental measures and managing exposure. No backtest results or evidence of profitability are supplied, and the stated rationale should not be treated as validation.

Key ideas

• The screen requires amplitude above 1%, at least two limit-up events over 500 days, and a close above the previous day's low.
• The post suggests ranking qualifying stocks using amplitude, limit-up frequency, and closing price.
• Its Python example uses price data and rolling checks, but does not clearly implement the same daily 500-day conditions.
• The screen is technical and may miss longer-term price behavior and company-specific risks.
• The author suggests adding fundamental and industry information and managing portfolio exposure.

Tags

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