A-Share Screen for Wide Ranges, Convertible Bonds, and Lower Lows

Summary

This A-share stock screen requires a daily high-low range greater than 1%, a nonempty name for an outstanding convertible bond, and a current low below the previous day’s low. The article interprets the range as a sign of volatility, the bond condition as a company-related filter, and the lower low as evidence of a possible price decline. It provides indicator-formula and Python examples, though the Python reference adds further eligibility and data checks beyond the headline rules.

The article acknowledges that the screen lacks a robust fundamental assessment and may select weak companies; its reliance on short-term price movement also makes it vulnerable to market fluctuations. It recommends combining the conditions with valuation or earnings measures and examining longer periods of price behavior. No backtest results or trading evidence are presented, and the document’s descriptions do not establish that convertible-bond status or a lower low offers a reliable trading advantage.

Key ideas

• The screen requires a daily range above 1%, an outstanding convertible bond name, and a lower low than the previous session.
• The article presents the range as a volatility measure and the lower low as a short-term price signal.
• The Python example includes additional eligibility filters beyond the three headline conditions.
• The authors warn that the rules omit substantial fundamental analysis and can select weak stocks.
• No backtest or performance evidence is supplied.

Tags

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