Screening Shanghai-Listed Stocks for Rising Lows and High Amplitude

Summary

This note describes an A-share stock screen that selects securities with codes beginning with 60, daily amplitude above a threshold, and a rising-bottom pattern. It presents the code prefix as an initial universe filter and suggests adding technical, fundamental, and industry criteria to refine candidates. Formula and Python examples are included, but the Python example uses the standard deviation of highs as a proxy for amplitude, so its implementation does not precisely match the stated rule.

The note gives no performance data or backtest evidence. It warns that a code prefix carries no fundamental or sector information and that a small set of technical conditions can be affected by interest rates, policy, and other nontechnical forces. The rising-bottom condition is not clearly defined in the prose, which limits reproducibility; the examples also depend on platform-specific indicator behavior. Treat the screen as a rough selection concept requiring precise definitions and independent testing, rather than a validated trading strategy.

Key ideas

• The screen first limits candidates to stocks whose codes begin with 60.
• It combines a minimum amplitude condition with a rising-bottom pattern.
• The code examples do not implement amplitude identically to the prose description.
• The note recommends adding fundamental and industry information to the technical screen.
• No backtest or evidence of trading performance is provided.

Tags

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