Screening Chinese Stocks by Price Range, Year, and Convertible Bond Listing

Summary

This post describes a Chinese equity screen that combines three conditions: daily price range greater than one percent, a trading date in 2021, and a nonempty name for an outstanding convertible bond. It provides example implementations in a charting formula language and Python, using high and low prices for the range calculation and checking the date and bond-name fields. The post suggests that a larger range may indicate greater price variability and that an outstanding convertible bond can be a supplementary company attribute.

The screen is a filter, not a complete trading strategy: it gives no entry or exit rules, portfolio construction, backtest, or performance evidence. Its explanation of selecting 2021 stocks as potentially strong under current conditions is not supported by analysis, and the date condition makes the sample historical. The author cautions that market changes can make the criteria unsuitable, bond repayment carries risk, and a single-factor screen should be supplemented with technical and fundamental analysis. The two code examples also express the range denominator differently, so implementations may select different stocks.

Key ideas

• The proposed screen requires a daily range above one percent, a 2021 date, and a populated outstanding convertible bond name.
• The examples implement the conditions in a charting formula and in Python.
• The post treats price range as a rough volatility filter and convertible bond status as a supplementary attribute.
• The screen has no stated trading rules or performance evidence and should not be read as a validated strategy.
• The formula and Python examples use different denominators for the range calculation, which can change the selected stocks.

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