A Chinese Equity Screen Using Turnover, Limit-Ups, and Auction Volume

Summary

This Chinese equity selection rule screens for stocks with turnover between 3% and 12%, at least one limit-up event in the preceding 25 days, and a condition based on yesterday's turnover multiplied by the ratio of today's opening-auction volume to yesterday's volume. The product must fall between 0.5 and 2. The post presents this as a short-term screen intended to find liquid stocks with recent price strength and a specified change in auction activity. It also gives example implementations and mentions adding measures such as volatility for further analysis.

The article cautions that a short-term screen can select poor-quality companies or stocks with unreliable limit-up information. It does not provide backtest results, a defined portfolio construction process, or evidence that the screen predicts returns. The accompanying code and formula examples do not align perfectly in every detail, so the precise implementation should be checked before use. The listed criteria are screening conditions, not a complete trading plan with execution, exits, or position sizing.

Key ideas

• The screen requires turnover between 3% and 12% and a limit-up event within the prior 25 days.
• It constrains a product of prior turnover and the opening-auction volume ratio to between 0.5 and 2.
• The proposed rationale combines recent price strength, liquidity, and auction activity.
• The article flags risks from poor-quality firms and potentially unreliable limit-up information.
• It supplies no performance evidence or complete rules for execution and portfolio management.

Tags

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