A-Share Screen Using Opening Price, Range, and Convertible-Bond Data

Summary

This document describes an A-share stock screen combining a large-capitalization threshold, the presence of an outstanding convertible bond, intraday range, and a price check around 9:25. The accompanying formula and Python example add conditions including a price below the prior close and an opening move whose absolute size is under six percent. The stated rationale is to find relatively stable companies and avoid stocks with sharp early moves, though the screen itself does not establish business quality or stability.

The post provides implementation examples but no backtest, performance figures, or evidence that the filters improve returns. Its prose and code do not align cleanly: the description says amplitude greater than one and a 9:25 gain below six percent, while the formula and Python also impose downside-price conditions and include additional market and listing filters. The code’s data fields and timing assumptions would need validation before use. The post itself cautions that an opening quote does not predict later price movement and suggests adding valuation and debt measures.

Key ideas

• The screen combines market capitalization, convertible-bond information, intraday range, and an early-session price condition.
• The examples add constraints that are not clearly stated in the prose, including a price below the prior close.
• The post provides formula and Python examples but no evidence of historical performance.
• An opening price check may not represent later price direction, and the filters may exclude volatile winners.

Tags

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