Selecting Chinese Stocks by Intraday Range, Auction Turnover, and Market Cap

Summary

This Chinese stock screen selects securities with an amplitude above 1, ranks them by the day’s auction amount, keeps the top five, and requires market capitalization above 200 million. The author interprets amplitude and auction turnover as signs of activity and the size threshold as a rough stability filter. The post provides example formula and Python references, though the implementations do not fully align: the prose describes amplitude and auction ranking, while the Python condition uses positive trading amount and includes a ranking expression that is not defined there.

The source warns that market capitalization can be an imprecise proxy for stability and that the screen omits financial performance and company fundamentals. It suggests adding financial, historical, industry, and profitability criteria. No backtest, return evidence, or risk-adjusted results are presented, so the rules are a basic screening idea rather than evidence of a profitable strategy. Implementation details, including the meaning and units of “amplitude,” would need clarification before use.

Key ideas

• The screen combines amplitude above 1, top-five auction amount ranking, and market capitalization above 200 million.
• Auction activity is used as a proxy for current trading interest.
• The post treats larger market capitalization as a possible stability filter, while acknowledging this can be misleading.
• The sample code does not consistently implement the stated amplitude and auction-ranking conditions.
• The author recommends adding fundamental and industry filters, but provides no performance tests.

Tags

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