Screening Stocks by Intraday Range, Size, Profitability, and Convertible Bonds

Summary

This document describes an equity screen combining daily price amplitude above 1%, market capitalization below 10 billion yuan, positive net profit in each of the latest four quarters, a nonempty convertible-bond short name, and an opening price above the prior close. The initial logic is presented as a mix of price behavior, company profitability, size, and convertible-bond status. It also gives example implementations for a stock screener and a Python workflow.

The accompanying discussion cautions that amplitude is affected by broader market moves, profitability alone does not establish business quality, and convertible-bond status may be an imprecise selection criterion. It suggests adding earnings-per-share and valuation measures, as well as trading activity or other market indicators. No backtest, performance data, or evidence that the screen is profitable is provided, and the code examples should be treated as illustrations rather than validated implementations.

Key ideas

• The screen combines daily amplitude above 1% with a market-capitalization ceiling of 10 billion yuan.
• It requires positive net profit for each of the latest four quarters and a nonempty convertible-bond short name.
• The refined rules add a positive opening gap relative to the previous close.
• The document identifies market sensitivity and incomplete fundamental analysis as risks.
• It provides no performance results or empirical validation for the screening rules.

Tags

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