Equity Screening with Price Range, ROE, and Trading Amount

Summary

This Chinese-language post proposes an equity screen combining a daily price-range condition, sustained return on equity above a threshold over five years, and ranking by trading amount as a proxy for capital activity. The intended rationale is to find companies with strong historical profitability that are also attracting market attention. It includes example indicator logic and Python-style code for applying the conditions to stock data.

The post cautions that trading activity does not establish fundamental value, past profitability may not persist, and a simple price-range measure can miss other sources of volatility. It recommends adapting the screen for industry differences and potentially using more developed quantitative models. It supplies no backtest results or evidence that the screen outperforms; the sample code also appears to implement some conditions differently from the prose, so its exact behavior should be checked before use.

Key ideas

• The proposed screen combines a price-range filter, five years of high ROE, and trading-amount ranking.
• Trading activity is treated as a proxy for market interest, not as proof of company value.
• Past ROE and a simple range measure have important persistence and coverage limitations.
• The post gives sample implementation logic but reports no performance testing.

Tags

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