A-Share Screening with Turnover, Profitability, Size, and Auction Flows

Summary

This A-share stock screen combines turnover of 3% to 12%, market capitalization below 10 billion yuan, positive profitability, and positive net buying attributed to large traders during the opening auction. The article frames the filters as a way to find moderately sized, liquid companies with no losses and favorable auction demand. It also suggests ranking candidates by the flow measure, though the examples are not fully consistent about the capitalization floor and data fields.

The post provides a rationale, sample screening logic, and code references, but no backtest results or evidence that the rules predict returns. It warns that auction flows may be distorted by unusual trades and market sentiment, and that the screen omits valuation, growth prospects, and other fundamentals. Its proposed refinement is to combine the flow signal with company, industry, technical, and sentiment factors; this expanded approach is described conceptually rather than tested.

Key ideas

• The screen filters A-shares by turnover, market size, profitability, and positive opening-auction net buying.
• The article proposes ranking eligible stocks by the buying-flow measure.
• Auction flow can be misleading because of unusual trades or short-lived sentiment.
• The post offers no performance test, and its code examples contain inconsistencies in the stated filters.

Tags

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