Chinese Stock Screen for Auction Activity, Volatility, and Limit-Up History

Summary

This China-focused equity screen combines three filters: amplitude above a stated threshold, ranking among the top five stocks by the day’s opening-auction amount, and at least two limit-up events during the prior 500 days. The article frames amplitude and auction turnover as signs of volatility and activity, while past limit-ups are treated as a proxy for market interest. It provides a screening expression and example code, but the code contains undefined references and inconsistent conditions, so it is not a reliable ready-to-run implementation.

The post acknowledges that the selection logic relies on technical behavior and sentiment, omits company fundamentals, and may be overfit. It suggests adding fundamental, industry, and financial measures or using machine learning, but gives no backtest, performance statistics, or validation of those suggestions. The stated final selection concept also expands beyond the three original filters, so the exact investable rules remain underspecified.

Key ideas

• The screen selects stocks using amplitude, opening-auction amount rank, and limit-up history.
• The stated rules combine volatility, trading activity, and a sentiment proxy.
• The example code contains inconsistencies and does not fully implement a dependable screen.
• The post flags omitted fundamentals and possible overfitting, without presenting performance tests.

Tags

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