A-Share Screen Combining Capital-Addition, Large-Order Flow, and Valuation Filters
Summary
The post proposes an A-share stock screen centered on a reported increase in holdings above 5% and a relationship between price change and net large-order flow. It also refers to 2021 performance, then adds market capitalization above 10 billion and a price-to-earnings ratio below 20 as valuation filters. The stated rationale is that reported buying may reflect investor confidence and that large-order flow can indicate an imbalance in buying and selling pressure.
The accompanying Python sketch is incomplete and does not reliably implement the full stated screen: it mixes price and volume concepts in its capital-addition calculation, omits a clear computation for the price-change/large-order-flow condition, and lacks a defined 2021 selection rule. The article provides no backtest or performance results. It cautions that the criteria are simple and may fail in extreme markets, and suggests adding other filters and trend analysis. Any implementation would need precise definitions and validation against appropriate historical data.
Key ideas
- The proposed screen uses a reported capital-addition ratio above 5% and a price-change measure combined with net large-order flow.
- It adds market capitalization and price-to-earnings constraints, while the role of the 2021 reference is not clearly specified.
- The post interprets capital additions as possible evidence of investor confidence, but does not establish predictive value.
- The sample code does not fully or consistently implement the described conditions, so definitions and calculations need validation.
- No performance evidence is supplied, and the post warns that simple filters may fail in extreme markets.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.