Chinese Stock Screening by Intraday Range, Afternoon Flows, and Auction Turnover

Summary

This stock selection idea combines three filters: daily price amplitude above a threshold, an afternoon large order net inflow condition, and prior day opening auction turnover above a threshold. The article explains the intended interpretation: a larger range may identify more volatile shares, positive afternoon flow may indicate concentrated buying, and auction turnover may point to recent market attention. It also sketches indicator formula conditions and a Python style implementation that queries market and flow data.

The author flags that auction turnover can be affected by short term speculation and that high amplitude and large order inflows can select risky stocks. Suggested refinements include adding technical indicators and company fundamentals, then diversifying the portfolio. The page does not provide backtest results, execution assumptions, precise validation of its formulas, or evidence that the conditions predict returns. Its code sketch also depends on data fields and helper functions whose definitions are not fully explained, so implementation details require verification.

Key ideas

• The screen combines price amplitude, afternoon large order flow, and prior auction turnover conditions.
• The proposed rationale links these signals to volatility, buying interest, and recent market attention.
• The article warns that speculative turnover and high volatility can expose selections to elevated risk.
• It suggests adding technical and fundamental filters and diversifying holdings.
• No backtest evidence or execution analysis is supplied, and the code sketch needs implementation checks.

Tags

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