Screening Chinese Stocks with Volatility, Limit-Down Behavior, and KDJ

Summary

This stock-screening idea combines an amplitude threshold above 1, a prior-day 9:15 matched price at the limit-down level, and an increasing K value from the KDJ indicator. The post interprets large price ranges as opportunity, the auction price condition as a possible signal of market sentiment, and rising K as improving price momentum. It includes indicator expressions and a sample selection routine that sorts qualifying stocks by total market value.

The author cautions that the screen omits company fundamentals, that equity outcomes are uncertain, and that KDJ alone cannot fully characterize a trend. Suggested additions include valuation and financial-statement measures, other technical indicators, stop-losses, and position controls. No backtest or performance evidence is supplied. The sample code also relies on platform-specific indicator functions, so its behavior and reproducibility depend on the data source and implementation.

Key ideas

• The proposed screen combines a large daily range, a prior auction-price limit-down condition, and rising KDJ K values.
• The author interprets these filters as capturing opportunity, market sentiment, and improving short-term price direction.
• The post recommends combining technical filters with fundamental analysis and risk controls.
• No backtest results are provided, and the indicator expressions depend on platform-specific functions.

Tags

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