A Chinese Stock Screen Combining Limit-Down Behavior and Large-Order Flow

Summary

This Chinese-language post proposes an equity screen using four conditions: daily amplitude above a threshold, a prior-day opening auction match at the limit-down price, a product of absolute price change and large-order net volume, and current volume above its 20-day average. The author’s stated rationale is that wide movement may create opportunities, the auction and low-price behavior may reflect sentiment, and the order-flow measure may help characterize capital flows. The candidates are then sorted by market value, with a sample count supplied by the user.

The post includes indicator-formula references and a Python-style example, but does not provide a valid standalone implementation or historical performance evidence. It warns that technical conditions omit company fundamentals and cannot ensure returns. Suggested extensions include valuation and financial-statement measures, additional technical indicators, and controls such as stop losses and position sizing. The screen is therefore a starting hypothesis requiring data validation and risk management, not a demonstrated strategy.

Key ideas

• The proposed screen combines volatility, prior-day auction and limit behavior, order flow, and relative volume.
• Its order-flow condition scales absolute price change by large-order net volume.
• The example sorts selected stocks by market value but provides no performance evidence.
• The author recommends adding fundamental analysis and explicit risk controls.
• The screening conditions cannot guarantee profitable outcomes.

Tags

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