Chinese Stock Screening by Intraday Range, Afternoon Flows, and Float

Summary

This Chinese-language post describes a stock-selection screen using three conditions: daily high-to-low amplitude above one percent, an afternoon large-order net inflow proxy, and circulating shares no greater than 5.5 billion. It explains the small-float criterion as a way to focus on stocks that may be more responsive to large buying, then gives corresponding indicator formulas and a Python example that queries stock and daily market data. Selected stocks are proposed as candidates for further analysis rather than automatic buys.

The post warns that the screen may pick temporarily active companies with weak fundamentals or inadequate liquidity, and that its inputs can vary with market conditions. It suggests reducing the float criterion's influence and adding moving averages, RSI, or MACD, alongside fundamental, technical, and policy review and risk controls. It offers no backtest results or evidence that the screen produces returns; the stated relationships and code are presented as a reference approach requiring validation.

Key ideas

• The screen combines a daily range threshold, an afternoon large-order flow proxy, and a maximum circulating share count.
• The post interprets small float as potentially more sensitive to large buy orders.
• It provides formulas and a Python example for applying the conditions to stock data.
• The author cautions that the screen can select weak or illiquid stocks and that its indicators are unstable.
• Additional technical and fundamental analysis and risk controls are recommended, but no performance test is reported.

Tags

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