Screening Shanghai-Listed Stocks by Daily Range and Ownership Concentration

Summary

This Chinese-market stock screen selects securities whose codes begin with 60, whose daily high-low range exceeds 1% of the previous close, and whose stated ownership concentration is no more than 70%. The article describes concentration as the combined holdings of the largest 20% of shareholders and suggests that a high value may bring additional risk. Its example also sorts qualifying stocks by individual-stock popularity.

The post characterizes the range condition as a way to find more volatile stocks and cautions that volatility can complicate risk control. It also notes that a code prefix does not identify company quality and that the concentration cutoff cannot remove all company-specific risk. The article suggests adding fundamental measures and risk controls, but supplies no backtest or performance evidence. Its screen is a basic filter, not a complete investment method.

Key ideas

• The screen requires a daily high-low range above 1% of the previous close.
• It restricts candidates to stocks with codes beginning with 60.
• It sets a maximum ownership concentration of 70% for the largest 20% of shareholders.
• The example sorts qualifying names by individual-stock popularity.
• The article warns that volatility and the code-prefix filter have limitations and gives no performance evidence.

Tags

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