Screening Chinese A-Shares by Turnover and Buy-Side Trade Volume

Summary

This post describes a Chinese A-share selection screen that keeps stocks with turnover between 3% and 12%, an outside-to-inside trade volume ratio above 1.3, and codes beginning with 60. The turnover band is presented as a way to focus on stocks with trading activity, while the trade-flow ratio is intended to capture stronger buying pressure. The code-prefix condition further narrows the universe.

The document provides indicator-formula and Python examples, but no performance results or empirical validation. It warns that the filters can exclude promising stocks and that relying on a code prefix omits other relevant characteristics. It suggests adding valuation measures or industry filters for broader assessment. The described screen is therefore a simple selection rule, not a complete valuation or risk framework; the post does not explain portfolio construction, holding periods, or how the trade-flow signal behaves across market conditions.

Key ideas

• The screen selects stocks with turnover between 3% and 12%.
• It requires outside trade volume to exceed inside trade volume by a ratio greater than 1.3.
• The universe is restricted to stock codes beginning with 60.
• The post suggests adding valuation or industry filters, but reports no backtest evidence.

Tags

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