Filtering Chinese Stocks by Amplitude, Control, and Profit Growth

Summary

This stock-screening example combines a daily amplitude threshold, a measure of controlling-shareholder activity, and year-over-year net profit growth. The stated selection rules require amplitude above 1, a control measure above 21, and profit growth above 20% but no more than 100%. The article describes the approach as a short-term screen blending price behavior and a company fundamental.

It provides sample implementations for a Chinese stock platform and Python, but reports no backtest, performance statistics, or evidence that the screen earns excess returns. The article itself flags exposure to company-specific and broader market risks, along with reliance on a small set of indicators. It suggests broadening the assessment with valuation or dividend measures and applying explicit risk controls. The examples are references rather than a complete trading system: they do not define position sizing, exits, or validation procedures, and their data fields and thresholds may require platform-specific checking.

Key ideas

• The screen requires daily amplitude above 1 and a controlling-shareholder measure above 21.
• It restricts year-over-year parent-company net profit growth to above 20% and at most 100%.
• The article presents the combination as a short-term stock selection approach using technical and fundamental inputs.
• No backtest results or performance evidence are provided.
• The author recommends adding other company measures and applying risk controls.

Tags

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