Chinese Stock Screen with a Rising 30-Day Average and Opening Gap Filter

Summary

This stock-screening method ranks shares by volume ratio and selects the top 100, then filters for an opening gain below six percent relative to the previous close. It also requires the 30-day moving average to be rising and the share price to sit above that average. The rationale is to combine elevated relative trading activity, a limited opening gap, and an upward intermediate trend. A brief code fragment illustrates calculating volume relative to a rolling average, but it does not show a complete implementation of the full screen.

The article identifies risks: volume ratios may be distorted, opening price moves can be unstable, and moving averages can be affected by trading activity. It suggests considering other liquidity measures and moving-average periods. It provides no test results, execution assumptions, or evidence that the filters improve returns. The ranking and filters are therefore a proposed selection method whose behavior would need to be evaluated with suitable historical data and clearly defined timing.

Key ideas

• The method ranks stocks by volume ratio and retains the top 100.
• It filters for an opening gain below six percent from the previous close.
• Candidates must have a rising 30-day average and trade above that average.
• The article notes possible distortions in volume ratios and instability in opening prices.
• It provides no complete implementation or strategy performance evidence.

Tags

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