Selecting Shanghai-Listed Stocks by Daily Range and Recent Limit-Ups

Summary

This Chinese-language post describes a stock-selection screen for Shanghai-listed shares. It combines three conditions: daily high-to-low range above one percent, at least one limit-up event within the prior 25 trading days, and a stock code beginning with 60. The selected shares enter a candidate investment pool; the post offers corresponding indicator-formula and Python examples for calculating the conditions.

The rationale given is that a larger daily range may indicate volatility and a recent limit-up may reflect favorable market attention. The author also suggests evaluating fundamentals and other technical indicators, checking whether the code prefix truly identifies the assumed industry, and controlling trading costs. No historical test or return evidence is supplied to show that the screen predicts gains. The post explicitly warns that past data may not forecast future performance and that volatile or limit-up stocks can carry substantial risk.

Key ideas

• The screen requires a daily high-low range above one percent and a limit-up in the preceding 25 days.
• It restricts candidates to shares whose codes begin with 60.
• The post provides formula and Python examples for implementing the filter.
• The proposed explanations about volatility, market attention, and industry are hypotheses rather than demonstrated results.
• The author recommends additional analysis and cautions that past signals may not predict future returns.

Tags

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