Screening Stocks by Daily Range, Listing Age, and Institutional Flow

Summary

This post describes a Chinese equity screen that selects stocks with daily price movement above a stated threshold, more than one year since listing, and positive institutional-flow readings. It presents the range condition as a way to focus on active shares, listing age as a filter against newer stocks with potentially larger swings, and positive DDX as a sign of capital inflow. The accompanying example also applies exchange and price-trend filters, including a comparison with a long moving average, so the code's conditions are not identical to the prose description.

The document provides no backtest results, returns, or risk-adjusted comparisons. It cautions that the screen omits company fundamentals, industry conditions, and macroeconomic factors, and that institutional-flow measures may lag or misclassify activity. Suggested extensions include adding technical measures such as Bollinger Bands and using stop-loss and take-profit rules. These are recommendations rather than tested improvements; the screen alone does not establish that the selected shares will outperform.

Key ideas

• The stated screen combines a minimum daily price range, listing age, and positive DDX.
• The post frames range as an activity filter and listing age as a way to exclude recent listings.
• The sample implementation adds market and moving-average filters beyond the described rule.
• The article notes that institutional-flow data can be delayed or misleading.
• It supplies no empirical performance evidence and recommends broader analysis and risk controls.

Tags

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