A Reversal Screen Using Turnover, Engulfing Action, and Lower Lows

Summary

The post describes a Chinese stock screening idea that combines turnover in a stated 3%–12% range with an engulfing pattern and a current low below the prior day's low. It frames the lower low as a sign of recent weakness that might precede a rebound, and includes a formula reference and a Python example intended to select qualifying stocks.

The material is not a tested trading system: it gives no performance results, entry or exit rules, or portfolio construction method. Its implementation also appears inconsistent with the stated turnover range and reversal condition: the sample code creates a market-cap-based flag and tests for a lower low, without clearly implementing the stated turnover bounds or engulfing pattern. The author notes that short-term price signals can neglect fundamentals and produce volatile selections, and suggests combining technical and valuation measures and diversifying. Those suggestions are general and are not evaluated in the post.

Key ideas

• The proposed screen combines a specified turnover band, an engulfing setup, and a lower current low.
• The rationale is that short-term weakness may identify stocks with potential for a rebound.
• The supplied sample code does not clearly implement all conditions described in the screening rule.
• No backtest results, trade management rules, or evidence of profitability are provided.
• The post flags short-term volatility and neglect of company fundamentals as risks.

Tags

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