Chinese Stock Screening with Turnover, Order Flow, and Price Filters

Summary

This stock-selection note describes a short-term screen for Chinese equities based on three conditions: turnover between 3% and 12%, a ratio of outside to inside trading volume above 1.3, and a closing price above the previous day’s low. The combination is intended to filter for a moderate level of trading activity, a greater balance of externally classified buying volume, and a basic price-strength condition. The post also gives an implementation example that further limits selected stocks by code and caps the number returned.

The author characterizes the approach as subjective and sensitive to indicator and threshold choices, with risks of overfitting and lagging responses to market cycles or individual company conditions. Suggested additions include other technical indicators and fundamental factors, but no tested rules or performance evidence are supplied. The stated conditions also differ slightly between the strategy description and code example, including strict versus inclusive turnover bounds, so an implementation should resolve that discrepancy and verify how the data provider defines outside and inside volume before evaluating results.

Key ideas

• The screen combines a turnover band, an outside-to-inside volume ratio threshold, and a close-above-prior-low condition.
• The post presents the signals as measures of liquidity, trading activity, and short-term price behavior.
• Its code example adds a stock-code filter and a maximum selection count.
• The author identifies parameter subjectivity, overfitting, and lag as limitations.
• The prose and code use different boundary conventions for turnover, and the volume definitions need verification.

Tags

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