Screening Chinese Stocks by Intraday Range and Opening Gain

Summary

The proposed short-term stock screen selects shares with an amplitude above a threshold, an indicated 9:25 price gain below a cap, and an exclusion for the STAR Market. The author presents these filters as a way to combine a volatility condition, an early-session price condition, and a market-board restriction. The document also includes examples of translating the screen into platform criteria and a data retrieval workflow.

The article acknowledges that these filters ignore long-term trends and company fundamentals, and that the approach may be unreliable across changing market conditions. It suggests adding valuation or earnings measures, considering industry leaders, and adapting the screen as conditions change. No backtest results or evidence of returns are provided. The example implementation has potential ambiguity: the prose describes a 9:25 gain relative to the prior close, while the code and indicator references do not consistently establish that the data fields measure the same time point or range definition. The screen therefore needs careful data validation before use.

Key ideas

• The screen combines an amplitude threshold, a cap on the 9:25 price gain, and exclusion of STAR Market stocks.
• The article positions the rules as a short-term stock selection filter.
• It warns that the screen omits long-term trend and fundamental information.
• Suggested additions include valuation, earnings, industry leadership, and stable price trends.
• No performance evidence is given, and the example data logic may not exactly match the stated criteria.

Tags

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