A-Share Screen for Three-Day Limit-Up Streaks and Low Concentration

Summary

This Chinese equity screen seeks stocks whose daily range exceeds a threshold, that have recorded three consecutive limit-up sessions by the prior day, and whose concentration measure is below a specified level. The article interprets the range as a sign of activity, the streak as evidence of buying enthusiasm, and the concentration condition as a way to exclude overly concentrated names.

It warns that a screen driven by short-term sentiment may overlook longer-term fundamentals, and that concentration alone does not fully describe liquidity or how broadly capital is distributed. It suggests adding fundamental and trend filters, but supplies no test results. The accompanying sample code also introduces volume and instrument-specific data fields and uses a futures contract example, so it is not a clear, validated implementation of the stated stock-selection rules.

Key ideas

• The screen combines a minimum daily range, a three-session limit-up streak, and a concentration ceiling.
• The streak is treated as a short-term signal of buying interest.
• The article cautions that sentiment screens can miss fundamental risks.
• Concentration is not a complete measure of liquidity or investor distribution.
• No performance evidence is given, and the sample code does not cleanly match the stated stock screen.

Tags

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