Chinese Stock Screen Using Volatility, Recent Gains, and Concentration

Summary

This Chinese-language post describes an equity screen combining a volatility condition, at least one daily gain of 10% or more in the prior 25 trading days, and a stock concentration measure below 20%. It also proposes adding fundamental and valuation filters. The example formulas use a range-versus-ATR condition, a prior-day close comparison, a concentration field, and heat-based ranking, but the written criteria and sample code are not fully consistent in how they define the conditions.

The post argues that the screen may find relatively strong, actively moving stocks while limiting concentration. It gives no backtest, returns, or empirical validation. It cautions that the approach can miss company fundamentals, broader market mood, and industry trends, and may encourage chasing short-term strength. It suggests longer-window concentration measures and additional fundamental and technical inputs, while leaving those refinements unspecified.

Key ideas

• The screen seeks stocks with volatility and a large daily gain within the prior 25 trading days.
• It adds a concentration threshold below 20% and suggests sorting candidates by heat.
• The post proposes incorporating fundamental and valuation measures, but does not define them.
• It warns that short-term price strength can lead to chasing moves and overlooks broader context.
• The formulas and prose differ in places, so the exact screen would need clarification before implementation.

Tags

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