Screening Stocks by Auction Limit Down and Positive Large-Order Flow

Summary

This Chinese stock-screening post describes a short-term filter combining three signals: amplitude above one, a prior-day 9:15 indicative matching price at the limit-down level, and large-order net volume above 0.05 for at least three consecutive days. It offers corresponding indicator and Python examples, with the Python sketch sorting selected stocks by auction amount.

The post argues that large amplitude may indicate opportunity, the auction price may reflect market sentiment, and persistent positive large-order flow may suggest a trend. It provides no backtest, performance figures, or evidence that these interpretations predict returns. The examples are platform-specific references rather than a validated, fully portable implementation. The author cautions that the screen neglects company fundamentals and depends heavily on volume fluctuations, making it more suited to short-term trading; suggested improvements include adding valuation and financial statement measures and risk controls.

Key ideas

• The screen combines high amplitude, a prior-session indicative auction price at limit down, and sustained positive large-order net volume.
• The post interprets the auction condition as a possible sign of market sentiment.
• The author treats consecutive positive large-order flow as a possible trend signal.
• The strategy is presented as short-term and volume-dependent, with no backtest evidence supplied.
• The author suggests adding fundamental measures and risk controls.

Tags

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