A-Share Screen for High Volume and a Lower Daily Low

Summary

This Chinese-language post describes a short-term A-share screening rule. It selects stocks with daily amplitude of at least one percent, a volume ratio between 1.5 and 6, and a current low below the previous day's low. The accompanying explanation treats the volume band as a way to find active but not extreme trading, while the lower low is presented as a possible dip-buying cue. It also suggests considering industry conditions, market context, and fundamental quality when refining the screen.

The post gives indicator formulas and a sample Python approach, but no historical test, portfolio construction rules, or evidence that the conditions predict rebounds. The sample Python volume calculation compares average volume with total share capital, which does not match the volume-ratio definition in the stated rule; the screening logic therefore needs implementation review. The author notes that the rule omits fundamentals and risk controls, and that individual stocks may be affected by market-specific factors.

Key ideas

• The screen combines daily amplitude, relative volume, and a lower current low than the prior day's low.
• The proposed volume band is intended to identify active trading without selecting the most extreme volume spikes.
• A lower daily low is used as a possible dip-buying signal, but the post provides no evidence of rebound performance.
• The sample Python volume calculation does not match the stated relative-volume formula.
• The author recommends adding market, industry, fundamental, and risk analysis.

Tags

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