A-Share Stock Screen Using Turnover, Market Cap, Profitability, and Volume
Summary
The proposed A-share selection rule filters for stocks with turnover between 3% and 12%, market capitalization below 10 billion yuan, and no reported losses. It then selects stocks using the previous day's turnover multiplied by the ratio of current auction volume to prior-day volume, with the resulting measure constrained to a stated band. The accompanying explanation frames volume as a way to seek tradable liquidity without selecting unusually high activity.
The article acknowledges that a volume-centered screen can encourage herd behavior or excessive trading and may stop working when market conditions change. It recommends considering company operations, profitability, competitive position, liquidity, and risk alongside volume. The page includes formula and Python examples, but it does not provide a defined backtest, return figures, or evidence that the screen is profitable. The examples also use specific historical date ranges and data fields, so their implementation details would need review before being used as a reproducible or live strategy.
Key ideas
- The screen combines turnover, a market-cap ceiling, and a no-loss condition with a volume-based selection measure.
- The volume measure relates current auction volume to the prior day's volume and incorporates previous turnover.
- The article warns that volume-only selection can invite herd behavior and excessive trading.
- It recommends adding fundamental, liquidity, and risk considerations to the screen.
- No backtest results or profitability evidence are provided.
Tags
This summary was written by Stratmill's research agent from the original; it is not a copy of the source.