Chinese Stock Screening by Price Range and Positive Institutional Flow

Summary

This note describes a Chinese equity screening rule that combines daily price range, a stock-code prefix beginning with 60, and a positive institutional-flow measure. The accompanying indicator example defines range relative to the previous close and estimates flow by summing volume on periods with positive DDX readings. The Python example applies similar filters, although its institutional-flow series is fetched separately from the stock data, so the implementation may not match the stated per-stock rule.

The post explains that a larger range can indicate greater volatility and that positive institutional flow may suggest buying interest. It warns that a single technical condition can produce false signals, volatile stocks carry higher risk, and institutional-flow data may be an imperfect proxy. It recommends adding technical and financial measures or using a multi-factor approach. No backtest, performance results, or evidence of predictive value is provided, so the rule is best understood as a screening example rather than a validated strategy.

Key ideas

• The screen combines a price-range threshold, a code-prefix filter, and positive institutional-flow readings.
• The indicator example measures price range against the prior close and aggregates volume when DDX is positive.
• The Python example may not compute institutional flow separately for each stock.
• The post flags volatility, false signals, and imperfect institutional-flow measures as risks.
• It provides no performance evidence for the screening rule.

Tags

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