Screening Chinese Stocks by Recent Limit-Ups, Auction Move, and Buying Share

Summary

This post outlines an A-share screening approach combining three short-term signals: buying share above 5%, an auction-period price change between -2% and 5%, and more than two limit-up sessions during the prior ten days. The intended target is stocks showing substantial buying activity, a bounded opening move, and recent price-limit momentum. The post’s final stated screen adds a price-to-earnings ratio below 20 and a price-to-book ratio above 1.

The author warns that the approach relies heavily on recent market behavior, may perform poorly in volatile conditions, and can miss companies with stronger long-term prospects. Valuation filters are presented as a possible way to add context. The included code sketch uses field names and comparisons that do not clearly match the stated auction-change and limit-up conditions, so it should not be treated as a faithful implementation. No backtest, return evidence, or trading risk controls are provided.

Key ideas

• The screen combines buying share, the auction-period move, and recent limit-up frequency.
• The intended pattern is recent momentum with a constrained opening move.
• The final selection logic adds valuation thresholds for price-to-earnings and price-to-book ratios.
• The author identifies short-term dependence and poor fit for some investment goals as risks.
• The code example is not clearly aligned with the described filters, and no performance evidence is reported.

Tags

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