Screening Main Board Stocks by Turnover, Order Flow, and Daily Gain

Summary

This Chinese-language post describes a mainland Chinese stock screen combining turnover rate, the ratio of outside to inside trading volume, and the current day’s price gain, then restricting candidates to main board stocks. It frames turnover as a liquidity measure and the volume ratio and recent gain as signals of market activity or sentiment. The post includes illustrative query and Python implementations of the selection rules.

The post cautions that strong recent performance may not persist and that limiting the universe to one market board can exclude other opportunities. It suggests adding financial, industry, and technical analysis before making selections. The examples differ slightly in boundary handling: the narrative uses a turnover range of 3% to 12%, while the Python conditions are strict at both ends; the narrative also describes the volume ratio as greater than 1.3. No backtest, return evidence, or risk-adjusted results are given, so this is a screening proposal rather than a demonstrated investment strategy.

Key ideas

• The screen combines a turnover range, an outside-to-inside volume ratio, and a positive daily price change.
• It limits eligible securities to main board stocks.
• The examples provide query and Python versions of the selection logic, with slightly different turnover boundary treatment.
• The author notes that recent gains may not continue and that board restrictions can miss candidates.
• Financial, industry, and technical factors are proposed as additional filters, but 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.