A Volatility and Trading-Volume Screen for Smaller-Float Chinese Stocks

Summary

The post describes an A-share screening rule that selects stocks with a daily high-low range of at least one percent, trading volume between 1.5 and 6 times its five-day average, and a circulating share count no greater than 5.5 billion. It interprets the range as a way to find active price movement, the volume ratio as a filter for elevated but not extreme activity, and the float limit as a size constraint. The article provides a formula-like expression and a short code example, then recommends adding fundamental filters, trend measures, and stop-loss controls.

No backtest, sample results, or evidence is provided to show that these thresholds produce profitable trades. The post cautions that technical filters alone can admit financially weak companies and that the approach carries substantial risk. The example code also contains apparent inconsistencies with the prose, including a reversed range condition and a market-cap field where the description specifies circulating shares, so the stated screen should be checked before use.

Key ideas

• The stated screen combines daily price range, relative volume, and a circulating-share-count ceiling.
• The volume condition aims to identify unusually active trading without selecting the most extreme volume spikes.
• The post provides no empirical evidence that the thresholds improve returns.
• Technical-only selection can overlook financial weakness and should be paired with risk controls.
• The sample code appears inconsistent with the written rule and requires verification.

Tags

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