Screening Chinese Stocks for Volatility, Large-Order Inflow, and Recent Gains

Summary

This proposed stock screen combines three conditions: daily price amplitude above a threshold, a measure described as afternoon large-order net inflow, and at least one strong up day during the recent trading window. The article explains the intended rationale: amplitude selects stocks with movement, the flow condition seeks evidence of buying interest, and the past gain condition looks for recent upward momentum. It also gives formula and Python examples intended to calculate these filters from market data.

The article flags the possibility that recent winners may already be overbought and could pull back. It recommends broader technical and fundamental analysis and consideration of market context and diversification. No backtest, benchmark, or measured returns are provided, so the claimed upward potential is an interpretation rather than demonstrated predictive evidence. The sample formulas and code should be checked carefully: the text contains an inconsistency in how it describes the gain threshold, and the code’s data query and calculations may not faithfully represent the stated afternoon flow or rolling-period rules. The screen is a proposal, not a validated trading system.

Key ideas

• The screen combines price amplitude, a proxy for afternoon large-order inflow, and a recent strong-gain condition.
• The stated rationale is to find volatile stocks with buying interest and evidence of recent upward movement.
• The article warns that selecting recent gainers can expose a strategy to overbought stocks and pullbacks.
• It proposes adding other technical and fundamental factors and considering broader market conditions.
• No backtest or return evidence is supplied, and the example implementation needs verification.

Tags

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