Chinese Stock Screen Using Turnover, Recent Limit-Ups, and Opening Gap

Summary

This Chinese equities screen combines three conditions: turnover between 3% and 12%, at least one limit-up event during the prior 25 days, and an opening price at 9:25 that is less than 6% above the previous close. The post interprets turnover as a measure of trading activity, recent limit-up behavior as a sign of market interest, and the opening-gap cap as a way to avoid the most sharply rising shares. It supplies indicator and Python examples intended to implement the filters.

The post provides no historical test or performance evidence. It acknowledges that the screen is driven by short-term sentiment and trading activity, and may select companies with weak fundamentals. Its proposed improvement is to add company, financial, management, and industry criteria and adapt for market conditions and liquidity. The implementation details also deserve review: the stated turnover band and the code’s use of a turnover quantile may not select stocks in the same way, and the opening price input should be confirmed to represent the intended auction observation.

Key ideas

• The screen requires turnover between 3% and 12% and at least one recent limit-up event.
• It excludes stocks whose stated 9:25 opening return reaches 6% or more.
• The rationale treats recent limit-ups as a possible signal of market interest, not proof of future gains.
• The post warns that short-term activity filters omit fundamentals and may increase risk.
• The example implementation may differ from the stated turnover condition and should be checked against the intended data definitions.

Tags

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