A Chinese Stock Screen Combining Amplitude, Institutional Participation, and Price

Summary

This Chinese stock-selection example proposes screening after the daily close for shares with an amplitude indicator above 1, institutional participation above 30, and a closing price below 12 yuan. It presents the combination as a way to find volatile, lower-priced stocks with institutional interest. The article gives corresponding screening expressions and a Python-style sketch for filtering market data, but the implementation is only illustrative and relies on indicator fields whose calculation and availability are not explained.

The document acknowledges that the screen uses few inputs and may overlook company competitiveness, earnings, industry outlook, and broader market or sector trends. It suggests adding fundamental measures such as EPS growth, ROE, and price-to-earnings ratio, along with trend context and risk controls. No historical test, benchmark comparison, or realized performance evidence is supplied. The low share-price threshold and institutional-participation condition should therefore be treated as screening rules, not evidence that selected stocks are undervalued or likely to rise.

Key ideas

• The proposed screen selects stocks after the close using amplitude, institutional participation, and closing price conditions.
• Its stated thresholds are amplitude above 1, institutional participation above 30, and price below 12 yuan.
• The article warns that a small set of indicators can miss company and industry fundamentals.
• It suggests adding measures such as EPS growth, ROE, valuation, and market or sector trends.
• The document provides no backtest or evidence that the screen produces positive returns.

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