Chinese Stock Screening with Volatility, Auction Activity, and Recent Limit-Ups

Summary

The document describes a Chinese stock screen combining daily price range, a turnover measure adjusted by the ratio of current auction volume to prior-day volume, and evidence of a recent limit-up move. It frames these inputs as signs of active trading, market sentiment, and short-term strength. The selection rule requires the adjusted turnover measure to fall within a stated band and checks for a qualifying daily gain during the recent trading period. The article also gives formula and Python examples, though the code uses market-wide turnover in a calculation that the prose describes using auction volume, so implementation details may not match the stated rule.

The author cautions that the screen relies on a narrow set of short-term signals, may select stocks that have already risen substantially, and ignores company fundamentals. Suggested extensions include trend-line support, moving-average direction, fundamentals, and industry conditions. No backtest results or performance evidence are provided, so the screen should be treated as a proposed selection heuristic rather than a validated strategy.

Key ideas

• The screen combines price amplitude, an adjusted turnover measure, and a recent limit-up condition.
• The article presents market sentiment and trading activity as motivations for the chosen signals.
• Its code example may not implement the prose rule consistently because it uses market-wide turnover data.
• The author warns that short-term selection can favor already elevated stocks and omit fundamentals.
• Trend measures and fundamental or industry information are suggested as possible additions.

Tags

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