Chinese Stock Screening with Volatility, Institutional Flow, and Turnover

Summary

This article proposes a Chinese equity screen applied after the market opens. It combines a five-period amplitude measure above 1, a nonzero change in a proxy for institutional buying, and a previous-day turnover condition above 8%. The article supplies indicator expressions and sample code, then describes the factors as signals of volatility, institutional interest, and trading activity. It also suggests ranking candidates and discusses adding valuation, technical, and risk controls.

The article gives no backtest results or performance evidence. Its explanations of institutional buying and high turnover are hypotheses, not demonstrated predictive relationships. It warns that historical indicators may lose relevance as market conditions change and that the selected measures may need adjustment. The sample Python code also appears incomplete: it refers to undefined data and indicator functions, so it is not a ready-to-run implementation. The screening rule should therefore be treated as an unvalidated stock-selection idea rather than an established strategy.

Key ideas

• The proposed screen combines a short-term amplitude threshold, a change in an institutional-flow proxy, and high previous-day turnover.
• The article schedules screening after the daily market open.
• It presents indicator expressions and illustrative code but does not report backtest evidence.
• The suggested interpretation of institutional activity and turnover as bullish signals is not validated in the article.
• The sample code has undefined references and requires further implementation and testing.

Tags

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