A-Share Screen for Position Increases, Afternoon Buying, and Prior Limit-Ups

Summary

This A-share screening idea combines three market-behavior filters: a daily position increase above 5%, net buying by large orders during the afternoon, and at least two limit-up sessions within the prior 500 days. The rationale is that rising position interest and afternoon buying may signal demand, while repeated limit-ups indicate a history of strong price moves. The final proposed screen also adds favorable company finances and industry conditions, although it does not define how to measure either factor.

The document gives no backtest, performance results, or empirical support for the filters. Its code example is incomplete, and its description of the large-order flow threshold is not fully consistent with the initial screening statement. The author notes that relying on market behavior and historical prices can omit financial and industry context and cannot ensure future performance. The approach is therefore a screening concept rather than a fully specified, validated trading system.

Key ideas

• The screen requires a daily position increase greater than 5%.\nIt looks for net large-order buying in the afternoon.\nIt selects stocks with at least two limit-up sessions in the previous 500 days.\nThe proposed refinement adds favorable company finances and industry conditions without defining specific measures.\nThe document supplies no evidence that the screen predicts returns.

Tags

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