A-Share Stock Screen Using Daily Range, KDJ Cross, and Popularity

Summary

This Chinese-language article proposes an A-share screening rule: require a daily high-low range above one percent, detect a newly formed KDJ crossover, then rank candidates by stock popularity or trading volume. The selected stocks enter a watch or investment pool. It includes example formulas and Python-style implementation guidance for calculating a nine-period stochastic value and smoothing it into K, D, and J lines, then checking for a recent crossover.

The article argues that larger ranges may offer opportunity and that a fresh crossover or high popularity may capture improving sentiment and market attention. It also acknowledges substantial limitations: the screen omits company fundamentals and valuation, popularity rankings can lag a fading theme, and volatility raises risk. Suggested refinements include adding fundamental, market-cap, and industry filters or ranking stronger sectors. No backtest results or evidence of profitability are supplied, and the implementation examples should be checked carefully before use.

Key ideas

• The proposed screen combines a daily price-range threshold with a newly formed KDJ crossover.
• Candidates are ranked by popularity or volume before entering a watch pool.
• The author warns that the screen ignores fundamentals and valuation and may chase stale market attention.
• The article suggests adding market-cap, industry, and fundamental filters but provides no performance testing.

Tags

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