A Moving-Average and Bollinger Band Equity Screen
Summary
The document outlines a Chinese equity selection rule that ranks stocks by volume ratio, then filters for a close above the Bollinger middle band but below the upper band, and a 20-day moving average above the 120-day moving average. The authors interpret the band position as short-term strength and the moving-average relationship as an upward longer-term trend. Together, these conditions combine trading activity, price location, and trend direction.
The post gives brief indicator calculations and describes the criteria as a screening template. It does not report a backtest, risk-adjusted returns, or evidence that the proposed interpretations produce an advantage. It acknowledges that simple indicators can be noisy and may not forecast prices reliably, and suggests combining additional measures. The volume-ratio calculation is stated without enough context to verify how it should be computed or interpreted. No rules for execution, exits, portfolio weights, or risk limits are provided, so the method is a screen rather than a complete strategy.
Key ideas
- The screen ranks candidate stocks by volume ratio before applying price and trend filters.
- It requires the close to sit between the Bollinger middle and upper bands.
- A 20-day average above a 120-day average serves as the longer-term trend condition.
- The document gives no performance evidence or complete trading and risk-management rules.
- It warns that simple technical indicators can be noisy and suggests combining more information.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.