A-Share Momentum Screening with Limit-Ups, Bollinger Bands, and Volume Ratio

Summary

This post outlines a Chinese A-share stock screen combining three conditions: rank stocks among the top 100 by volume ratio, look for a Bollinger Band pattern described as contraction or expansion, and require at least two limit-up sessions within ten days. It interprets high volume ratio as a sign of attention, band behavior as a possible transition in price movement, and repeated limit-ups as evidence of strong short-term momentum.

The post identifies the screen’s main limitation as its narrow selection criteria, which may exclude other candidates. It suggests adding turnover and trading volume to assess activity, using MACD or RSI to refine technical judgments, and considering longer lookback periods for limit-up frequency. These are suggestions rather than tested refinements: no backtest, performance data, precise Bollinger Band rule, or execution and risk controls are provided, so the proposed signals should not be treated as validated evidence of future returns.

Key ideas

• The screen ranks stocks by volume ratio and selects the top 100.
• It combines that ranking with a Bollinger Band contraction or expansion pattern.
• It also requires at least two limit-up sessions during a ten-day window.
• The post proposes additional indicators and longer windows but supplies no performance evaluation.

Tags

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