Screening Chinese Stocks for Seven-Day Declines and Large Daily Ranges

Summary

This article describes a Chinese stock screen using a daily range above 1%, a session low between 4% and 5% below the prior close, and a run of seven consecutive non-rising closes. It frames the setup as a search for possible rebounds after sustained weakness. The article also gives example screening logic and a Python illustration, with additional filters that exclude certain stocks based on name, valuation, and market capitalization proxies.

The author warns that stocks in a bear market can be difficult to predict, that a short observation window may produce poor selections, and that rebounds can complicate timing. Suggested refinements include adding indicators such as MACD, RSI, or OBV, considering capital-flow measures, and broadening the decline condition to consecutive daily falls. No backtest, measured returns, or comparison against a benchmark is supplied, so the screen is a hypothesis rather than evidence of a profitable rebound strategy. The examples also differ slightly in how they implement the stated conditions.

Key ideas

• The screen combines a daily range threshold with a session low between 4% and 5% below the previous close.
• It looks for stocks with seven consecutive closes that do not rise.
• The proposed rationale is to identify possible rebounds after persistent declines.
• The author cautions that bear-market behavior and short samples make outcomes uncertain.
• Additional indicators and capital-flow measures are suggested, but no performance test is reported.

Tags

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