A Chinese A-Share Screen Using Range, Limit-Up Patterns, and the 250-Day Average

Summary

This Chinese-language post proposes a stock screen combining intraday amplitude above 1%, exclusion of special-treatment stocks, a five-session closing-price high condition described as a five-step limit-up approach, and a prior close above the 250-day moving average. It frames the setup as a way to filter for recent price strength and a longer-term upward trend, with selection intended before 10 a.m.

The article provides formula and Python examples, but the implementation details are not fully consistent: one formula uses a 1% amplitude threshold while the Python example compares an absolute price range with 1, and the described five-step pattern is represented as a rolling maximum close. The post gives no performance results or validation. It cautions that short-term price and technical filters can overlook fundamentals and may select shares whose prices are extended relative to the long moving average.

Key ideas

• The proposed screen combines amplitude, non-ST status, a recent five-session high condition, and price above the 250-day average.
• The intended selection window is before 10 a.m., according to the post.
• The examples do not implement the amplitude threshold consistently, so the signal needs careful definition before testing.
• The post warns that short-term technical filters omit fundamental and broader market information.
• No backtest evidence is supplied to establish the screen’s effectiveness.

Tags

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