A-Share Screen Using Turnover, KDJ Cross, and Prior-Day Limit-Down Pricing

Summary

This Chinese-language article outlines an A-share stock screen combining market capitalization, turnover, a KDJ bullish crossover, and a prior-day opening call-auction price near the daily limit-down level. The final stated criteria require market value above one billion yuan, turnover between 3% and 12%, a KDJ golden cross, and a prior 9:15 matching price at least 10% below the prior close. The article frames turnover as a liquidity filter, the KDJ crossover as a directional signal, and the prior price drop as a way to identify potentially undervalued shares.

It includes formula and Python examples, but the code’s calculation details do not clearly align with every stated rule, so implementation requires validation. The author acknowledges that the screen omits fundamentals and industry characteristics and suggests adding valuation or other technical filters. No backtest results, holding period, execution plan, or risk-adjusted performance are provided; the undervaluation interpretation and usefulness of the combined signals are therefore unverified.

Key ideas

• The screen combines market capitalization and turnover constraints with a KDJ bullish crossover.
• It also looks for a prior 9:15 matching price near the daily limit-down level.
• The article interprets turnover as a liquidity filter and KDJ as a trend signal.
• The author notes that fundamentals and industry characteristics are omitted.
• The examples and criteria need validation, and no performance evidence is supplied.

Tags

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