Screening Chinese A-Shares by Amplitude, Shareholder Control, and Positive P/E

Summary

This stock screen combines three daily filters: price amplitude above 1, a controlling-shareholder measure above 21, and a positive price-to-earnings ratio. The article presents the combination as a way to include market activity, shareholder positioning, and a basic valuation check. It also provides example indicator and Python implementations, with the Python version sorting qualifying stocks by recent price change and returning a small list.

The article warns that P/E data may be delayed or inaccurate and that stacking several filters can leave too few stocks for diversification. It suggests adding other fundamental measures and loosening fixed thresholds when needed. No backtest, performance figures, or evidence that the screen predicts returns is supplied; the examples also differ in how they express the amplitude and shareholder-control thresholds, so implementation details should be checked before use.

Key ideas

• The screen requires amplitude above 1, controlling-shareholder activity above 21, and a positive P/E ratio.
• It combines market activity and shareholder information with a basic valuation filter.
• The example implementation ranks qualifying stocks by recent price change.
• Delayed valuation data and a small candidate pool are identified as risks.
• The article provides no performance testing to validate the screen.

Tags

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