Screening Chinese Stocks by Price Range, Year, Size, and Profitability

Summary

The document presents a Chinese equity screening rule combining daily price range, calendar year, market capitalization, and profitability. It selects stocks whose high-to-low move exceeds one percent, whose records fall in 2021, whose market value is below 10 billion yuan, and whose net profit is positive. It also provides example expressions for implementing those filters in a screening formula and a Python data frame workflow.

The accompanying rationale links larger daily ranges with volatility, smaller capitalization with potential returns, and positive profit with lower business risk. These are claims rather than demonstrated findings: no backtest, comparison, or return data are reported. The stated risks include weak performance in unfavorable markets, future deterioration in company profitability, and the greater risk of smaller firms. The document recommends combining additional fundamental or technical conditions, applying risk controls and diversification, and periodically evaluating the screen. Its year condition is fixed to 2021, so the selection is historical unless that filter is changed.

Key ideas

• The screen combines a daily range threshold, a 2021 date filter, a market capitalization ceiling, and positive net profit.
• The example implementation expresses the filters in both a formula and a Python data frame workflow.
• The rationale associates larger daily ranges with volatility and positive profits with reduced business risk.
• The document provides no evidence that the screen improves returns or risk-adjusted performance.
• It identifies market weakness, changing company finances, and small-company risk as limitations.

Tags

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