A-Share Screen Using Daily Range, Prior Limit Status, and KDJ

Summary

This Chinese stock-selection note proposes screening equities for a daily price range above 1%, no limit-up session on the prior day, and a KDJ stochastic K value below 20. It frames the range condition as a way to find active stocks and the low K reading as a possible oversold setup, while excluding stocks that had just hit the daily upper limit. The accompanying Python sketch refers to daily price changes, highs and lows, and the K value, though the code leaves data assumptions and indicator calculation unclear.

The note cautions that technical signals alone omit company fundamentals and industry conditions, and may encourage speculative decisions with disappointing risk and reward. It suggests adding fundamental, industry, market, and macroeconomic analysis and diversifying holdings. No backtest, returns, or empirical validation are supplied, so the screening rules are a hypothesis rather than evidence of a profitable strategy; the stated thresholds and data handling also need independent verification.

Key ideas

• The proposed screen combines a daily range threshold, prior-day limit-up exclusion, and a low K reading.
• The low stochastic K condition is presented as a potential value or oversold clue.
• The note warns that technical indicators omit company, industry, and macroeconomic information.
• It recommends combining screening signals with broader analysis and portfolio diversification.
• No performance testing is provided to establish whether the rules have an edge.

Tags

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