Screening Chinese Stocks with Turnover, Order Flow, and Limit-Up Activity

Summary

This Chinese equity screening idea combines trading activity, price movement, and a measure of large-order net flow. It selects stocks with turnover between 3% and 12%, requires the product of the day’s percentage change and super-large-order net volume to be positive, and adds a condition that the stock has more than two limit-up days within ten days. The post also supplies example implementations and describes ranking candidates by a weight based on turnover and volume.

The author frames the added limit-up condition as a way to focus on market heat while retaining activity and inflow signals. No backtest results or performance evidence are reported, and the sample code’s mechanics do not fully match the stated ten-day rule. The post flags omitted fundamentals and valuation, possible pullbacks after repeated limit-ups, and overfitting. It suggests supplementing the screen with valuation or technical measures and validating selection rules, including with machine-learning methods. These are suggestions rather than tested improvements.

Key ideas

• The screen combines a turnover band with a positive interaction between price change and large-order net flow.
• It also requires more than two limit-up sessions within a ten-day period.
• The post provides example code and a candidate ranking approach, but reports no performance results.
• The author identifies fundamental and valuation omissions, reversal risk, and overfitting as limitations.
• Additional filters and validation are proposed, but their effectiveness is not demonstrated.

Tags

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