Screening Chinese Stocks by Market Capitalization and Profitability

Summary

This note describes a fundamental screen based on company market capitalization and avoiding firms with losses. It also recommends considering profitability, growth, industry trends, and policy conditions when judging investment value. A short Python example demonstrates filtering for market capitalization above a stated threshold and zero losses, then calculating changes in revenue, net income, and growth measures. However, the headline refers to firms within a 100-billion market-cap limit, while the body repeatedly describes firms above that threshold; the example’s threshold and its market-cap units also do not clearly resolve the discrepancy.

The author says that size and profitability filters can miss financial or operating risks and may exclude opportunities elsewhere. The note proposes adding more fundamental and market factors, but supplies no backtest, selection results, or evidence that the screen improves returns. Its guidance is therefore a basic screening outline, with an internally inconsistent size criterion and no specified rules for ranking or weighting the additional factors.

Key ideas

• The note proposes combining a market-cap threshold with a filter that excludes loss-making companies.
• It recommends adding profitability, growth, industry, and policy considerations.
• The headline describes a limit below 100 billion, while the body describes a threshold above that amount.
• The code example calculates growth measures but does not establish a tested ranking method.
• No backtest or investment-performance evidence is provided.

Tags

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