Screening Large-Cap Stocks for Wide Ranges and Low KDJ Readings

Summary

This Chinese stock-screening post describes selecting shares with a daily range greater than 1, circulating market value above 10 billion yuan, and a low K value from a stochastic-style indicator. The accompanying explanation frames the low reading as a possible short-term oversold condition, while the market-cap and range filters select larger, more volatile stocks. It includes formula references and a sample workflow for calculating a stochastic measure, but provides no backtest, trade results, or evidence that oversold readings predict a rebound.

The source is inconsistent about the indicator: its headline and main rule specify K below 20, while the formula reference uses the J component of KDJ below 20, and the code appears to calculate a stochastic K value. It also describes the range condition differently in the formula and sample code. The author warns that technical readings do not measure business value, fundamentals are omitted, and a narrow candidate set may limit diversification. Fundamental and additional technical checks are suggested as possible refinements.

Key ideas

• The proposed screen combines a price-range threshold, market capitalization above 10 billion yuan, and a low stochastic-style reading.
• The author interprets a low reading as a possible short-term oversold condition.
• The headline specifies K below 20, but the formula reference uses J below 20 and the sample code calculates K.
• The source also differs on how the range condition is applied, so its implementation needs review.
• Fundamentals, diversification, and strategy performance are not established by the post.

Tags

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