A-Share Screening with Intraday Range, Opening Gain, and Rising 30-Day Average

Summary

This A-share screening rule combines a minimum price range, a cap on the 9:25 opening indication, and a rising 30-day moving average. The stated rationale is to seek stocks with some recent movement while avoiding an unusually large opening gain, then use the moving average to favor a rising short-term trend. The article suggests that these filters may be more suitable in strong market conditions and recommends considering fundamentals, liquidity, and broader market conditions alongside them.

The document gives indicator-formula and Python examples, but no backtest results or evidence that the screen improves returns or reduces risk. Its implementation details also do not fully align with the prose: the formula refers to a daily return and the Python example uses recent high and low data for range, rather than clearly implementing the stated 9:25 gain and amplitude definitions. The screen excludes fundamental and industry analysis by itself and may be unsuitable for persistently falling stocks. Treat it as a screening concept that needs precise definitions and independent testing.

Key ideas

• The screen combines a price-range threshold, a limit on the 9:25 indicated gain, and an upward-sloping 30-day average.
• The moving-average condition is intended to favor stocks with a positive short-term trend.
• The source recommends adding fundamental, financial, liquidity, and market context to the selection process.
• The examples do not clearly implement every stated condition, and the document reports no performance test.

Tags

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