Screening Chinese Stocks for Volatility, a KDJ Cross, and Consecutive Limit-Ups

Summary

The proposed A-share screen selects stocks with daily amplitude above one percent, a newly formed KDJ crossover, and three consecutive limit-up sessions on the previous day. The document frames larger amplitude as a sign of trading activity, the crossover as a possible change in sentiment, and consecutive limit-ups as evidence of optimistic price action. It provides example formula and Python implementations, but no backtest results or performance statistics.

The author cautions that technical signals can overlook fundamentals and industry conditions, and that recent limit-ups may reflect short-lived speculation rather than durable value. Suggested refinements include adding fundamental, industry, market-trend, and capital-flow measures, then separately deciding entry and exit timing. The examples are implementation references rather than validated rules; data handling and signal definitions should be checked carefully before use, particularly because price-limit conventions and adjustments can affect the screen.

Key ideas

• The screen combines daily amplitude, a newly formed KDJ crossover, and recent consecutive limit-up sessions.
• The document interprets these conditions as signs of volatility, improving sentiment, and strong recent price action.
• It supplies example implementations but reports no performance tests or results.
• Technical-only selection may miss fundamental risks, industry context, or speculative price moves.
• The suggested improvements include adding fundamental and market context and defining entry and exit rules.

Tags

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