A-Share Screening with Moving Average Crossovers and Bollinger Bands

Summary

This stock screen combines daily price movement with a sequence of moving average crossovers and a Bollinger Band location filter. It seeks shares whose intraday amplitude exceeds a threshold, whose shorter moving averages cross upward in succession, and whose close lies near the middle-to-upper portion of the Bollinger range. The article also suggests incorporating company financial measures and industry outlook before selecting investments.

The post gives an outline of the conditions and illustrative formula and Python examples, but reports no backtest or performance evidence. The implementation details are not fully consistent: the prose specifies an amplitude filter, while the displayed formulas emphasize moving average crosses and Bollinger bands; the example code also uses a separate long-term moving average comparison. The author cautions that short-term technical signals overlook business fundamentals and long-run prospects, and the screen should not be treated as a complete investment method.

Key ideas

• The proposed screen combines price amplitude, sequential moving average crossovers, and a Bollinger Band close filter.
• The accompanying examples include a long-term moving average comparison that is not clearly integrated into the stated core conditions.
• The article recommends reviewing financial and industry information alongside technical signals.
• No performance test is reported, and short-term technical filters may miss fundamental and long-term risks.

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