Screening Chinese Equities by Turnover, Market Capitalization, Profitability, and Morning Star

Summary

This proposed A-share screen combines turnover between 3% and 12%, market capitalization below 10 billion yuan, a non-loss condition, and a same-day Morning Star candlestick pattern. The article treats the pattern as a possible short-term reversal signal and uses liquidity, size, and profitability filters to narrow the candidate set. It provides example formula and Python implementations, followed by a suggestion to consider combining technical signals with financial and industry analysis.

The article notes that an emphasis on short-term price action may neglect long-term business value, that pattern detection depends on accurate data, and that a small candidate set can limit diversification. It offers no backtest results or evidence that the pattern improves returns. The sample code also leaves important choices unclear, such as the exact date alignment and whether the turnover and market-cap filters are applied consistently. The described screen is a starting specification, not a validated portfolio strategy; signal definitions and data handling need review before evaluation.

Key ideas

• The screen filters A-shares by turnover, market capitalization, profitability, and a Morning Star candlestick pattern.
• The pattern is presented as a possible short-term reversal indicator.
• The article warns about neglected long-term fundamentals, data quality, and limited diversification.
• The examples do not include performance evidence, and the screening implementation needs careful validation.

Tags

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