Screening Chinese Stocks for Sharp Intraday Declines and Large-Order Flow

Summary

This Chinese equity screening idea combines a minimum daily price range, a session low falling within a specified band below the prior close, and a positive product of percentage price change and a large-order activity measure. The stated final conditions require amplitude above 1, a maximum decline between 4% and 5%, and a positive interaction between the day’s change and super-large-order net volume. The article also sketches a Python implementation and suggests filtering out some stocks by valuation and market capitalization.

The proposal is a screening rule, not a demonstrated trading system: it reports no backtest, transaction costs, portfolio returns, or comparison with a benchmark. Its code’s proxy for large-order flow and some stated conditions may not match the prose exactly, and the amplitude threshold’s units are not fully clarified. The article acknowledges market and data-quality risks and suggests testing additional indicators and adjusting weights, but supplies no evidence that these changes improve results.

Key ideas

• The screen requires daily amplitude above 1 and a session low between 4% and 5% below the prior close.
• It also requires a positive product of percentage change and a large-order net-volume measure.
• The article provides example code and adds valuation and capitalization filters in its implementation sketch.
• The code may not exactly implement the written rules, and the amplitude units are unclear.
• No backtest or performance evidence is reported, and the article flags market and data-quality risks.

Tags

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