Chinese Stock Screening for Large Swings and Early Uptrend Signals

Summary

This Chinese equity screen combines a daily amplitude threshold, circulating market value above 10 billion yuan, and a technical condition described as the start of a major upward move. Its reference formula checks whether the prior midpoint was below an earlier midpoint and whether the close sits sufficiently high within the day’s range. The example Python implementation also checks market value and includes a moving-average condition, then samples from the eligible stocks. These conditions aim to identify larger companies with active price movement and a potentially strengthening trend.

The article warns that the screen relies heavily on technical signals and omits company fundamentals and financial data. It acknowledges that the trend-start indicator may not capture future price behavior and recommends considering industry prospects and risk controls. The supplied examples are not accompanied by backtest results, performance statistics, or a precise evaluation of the rule’s predictive value. The screen is an illustrative selection method rather than demonstrated evidence of a profitable strategy.

Key ideas

• The screen combines daily amplitude above 1%, circulating market value above 10 billion yuan, and a technical uptrend-start condition.
• The formula uses prior price midpoints and the close’s position within the daily range.
• The example code adds a moving-average check and samples from qualifying stocks.
• The article notes that fundamental and industry factors are absent from the core screen.
• No backtest results or predictive-performance evidence are provided.

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