Chinese Stock Screening by Intraday Range, Volume, Opening Gap, and Concentration

Summary

This article describes a Chinese stock screen based on four conditions: an absolute price-change measure above a threshold, current trading volume above a threshold, an opening price higher than the prior close, and a concentration measure below a ceiling. It frames the conditions as a way to find active stocks with liquidity and potential short-term trading opportunities. The article supplies no portfolio results, benchmark comparison, or backtest evidence to establish that the combination predicts gains.

It notes that this price-and-volume approach omits company fundamentals and industry context, and recommends adding financial, sector, valuation, market capitalization, or technical risk filters. The accompanying Python example uses historical daily data and proxies for some conditions, but its calculations do not clearly implement the stated concentration measure and may differ from the intended screen. The selection rules therefore need precise definitions and validation before use; high volume, a large range, or a gap up alone do not establish favorable expected returns.

Key ideas

• The proposed screen combines price range, current volume, a higher open, and a concentration ceiling.
• The article presents these as activity and liquidity criteria but provides no evidence of returns.
• The screening logic omits fundamentals and industry characteristics.
• The code example uses proxies that may not match the stated conditions, especially for concentration.
• Additional filters and explicit testing are needed to assess risk and usefulness.

Tags

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