A-Share Screening with Turnover, Bollinger Bands, and 10-Day Returns

Summary

This A-share screening method ranks stocks by capital intensity, then selects those whose closing price is between the Bollinger middle and upper bands. It also requires a positive 10-day return below 35%. The document presents these filters as a way to focus on stocks with market activity and upward movement while avoiding prices far beyond the middle band and stocks with large recent gains.

The discussion warns that technical indicators can miss company fundamentals, that frequent trading may raise costs and taxes, and that market noise can make signals unreliable. It suggests adding financial measures, holding-period or trade-size limits, and further indicator filters. These are proposals rather than tested improvements: the document provides no backtest, performance figures, or detailed implementation. Treat the screen as a basic selection rule whose usefulness depends on validation and execution assumptions.

Key ideas

• The screen ranks stocks by capital intensity and keeps the top 100.
• It selects closing prices above the Bollinger middle band and below the upper band.
• It requires a positive 10-day return below 35%.
• The document identifies dependence on technical indicators, trading costs, and market noise as risks.
• It proposes adding fundamental measures and trading constraints, but reports no validation results.

Tags

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