A-Share Screen Using Price Range, Price Level, and Prior-Day Limit Status

Summary

This Chinese A-share stock screen combines a daily range condition, a specified closing price, and a check that the previous session was not a limit-up day. The article’s prose describes the closing-price threshold as 18.5 yuan and the range as greater than one percent, then uses the prior-day condition to exclude stocks that had reached the upper price limit. It provides example screening formulas and Python code, though the implementations do not align fully with the prose: the range calculation differs, and the code uses its own data fields and filters.

The article frames the screen as a way to find stocks with some price movement while avoiding those that just surged to the daily limit. It offers no backtest, portfolio results, or evidence that the screen predicts short- or medium-term gains. It also cautions that price and range conditions omit broader market context and company fundamentals, and suggests adding technical and fundamental inputs or reducing position exposure. The screen is therefore a basic selection rule, not a validated strategy.

Key ideas

• The screen combines a range threshold, a closing price of 18.5 yuan, and exclusion of stocks that were limit-up the prior day.
• The article supplies formula and Python examples, but their conditions do not consistently match the written description.
• The rule uses price behavior alone and does not assess company fundamentals or broader market conditions.
• No performance evaluation is presented, and the article suggests enriching the screen and managing exposure.

Tags

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