Chinese Stock Trend Screen Using a Rising 30-Day Average and Daily Range

Summary

This technical screen selects stocks whose 30-day moving average is rising, whose daily amplitude exceeds a stated threshold, and which did not hit the price limit the previous day. The moving average is intended to capture an upward intermediate trend, while the range condition seeks active price movement; excluding prior limit-up stocks filters out stocks after a sharp one-day move.

The document warns that technical signals may overlook fundamentals, industry context, and market style, and that the screen may not work across market conditions. It suggests combining technical and fundamental research and using a defined trade plan. Formula and sample code are included, but no performance results are given, and the code is incomplete or inconsistent in places, so it does not establish that the selection logic was successfully tested.

Key ideas

• The screen requires a rising 30-day moving average, a daily range above a threshold, and no prior-day limit-up.
• The moving average represents trend, while range is used as a measure of short-term activity.
• The document cautions that technical filters can miss fundamental, industry, and market-style effects.
• No backtest results are provided, and the sample code has implementation gaps.

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