A-Share Screen Using Turnover, a KDJ Cross, and a Lower Low

Summary

This document describes a Chinese A-share stock screen combining a daily turnover ratio between 3% and 12%, a newly formed KDJ golden cross, and a current-day low below the previous day's low. It presents the conditions as a way to find actively traded stocks with a technical buy signal despite a lower intraday price low. The post also includes an illustrative formula and a Python example that loops through stock data, though the example's turnover checks use a historical quantile while its selected turnover value is the latest reading.

The author cautions that the screen focuses on technical conditions and short-term price behavior, leaving out company fundamentals, market changes, and external risks. It suggests adding fundamental, industry, valuation, policy-risk, and other technical measures. No backtest, performance figures, or evidence of predictive success is supplied, so the proposed future upside is an expectation rather than a demonstrated result. The criteria and implementation details should therefore be treated as a screening idea, not a validated trading system.

Key ideas

• The screen combines a 3%–12% turnover range with a newly formed KDJ golden cross.
• It also requires the current day's low to fall below the previous day's low.
• The accompanying Python example uses historical turnover quantiles in its filter, which differs from a simple check of today's turnover.
• The post warns that technical and short-term signals omit fundamentals and external risks.
• It proposes adding fundamental, industry, valuation, policy, and technical measures, but provides no performance evidence.

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