Chinese Stock Screening with Intraday Range, KDJ Crossover, and Recent Limit-Up

Summary

This Chinese A-share screening idea combines a daily price-range filter, a newly formed KDJ crossover, and evidence of a recent limit-up move. The proposed interpretation is that a larger range signals volatility, the crossover may indicate improving short-term momentum, and a recent limit-up suggests market attention. The article’s final rule shortens the lookback for the limit-up condition compared with its initial description. It also provides indicator-formula and Python implementation references.

The document offers a rule set and rationale, but no backtest, return figures, benchmark, or out-of-sample evidence. It warns that KDJ turning points can be misleading, the limit-up requirement can exclude other strong stocks, and the indicators may not capture the full picture. The article suggests adding fundamental, industry, and additional technical factors, adjusting the lookback, and considering longer-term measures. These suggestions are not tested in the document, and the screen alone does not define portfolio construction or exit rules.

Key ideas

• The screen requires a daily range above a threshold, a fresh KDJ crossover, and a recent limit-up event.
• The article treats the conditions as signals of volatility, improving momentum, and market attention.
• The final proposed rule uses a shorter limit-up lookback than the initial description.
• The document gives implementation references but no measured performance evidence.
• It identifies indicator errors and narrow filters as limitations and suggests adding other factors.

Tags

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