Screening Chinese Main Board Stocks by Range, Listing Age, and Daily Gain

Summary

This stock screen selects Chinese main board companies with daily amplitude above 1, more than three years since listing, and a daily gain above 1%. Its rationale is to favor more active shares while excluding newer listings and limiting the universe to the main board. The article also includes a Python example that narrows the universe to codes beginning with 60, checks recent daily data, and adds a descending-close condition over a short window.

The post gives no backtest, return data, or comparison showing that these filters predict future performance. It warns that the screen omits macroeconomic conditions and company fundamentals, and that selecting shares after a large daily rise can expose investors to volatility. It suggests combining the price filters with fundamental or valuation measures and using stop losses and position controls. The implementation details and screening criteria therefore describe a candidate selection process, not a validated strategy.

Key ideas

• The screen looks for main board stocks with amplitude above 1 and a daily rise above 1%.
• It excludes companies listed for three years or less.
• The code example adds a descending close pattern across three observations.
• The article provides no evidence that the filters generate profitable returns.
• It recommends adding fundamental checks and tighter risk controls.

Tags

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