Screening for Sharp Declines and Sustained Large-Order Net Buying

Summary

This Chinese stock-selection method combines amplitude above 1, a daily maximum decline between 4% and 5%, and large-order net volume above 0.05 for at least three consecutive days. It interprets the price range and decline as measures of volatility and recent weakness, while sustained positive large-order net volume is used as an indication of trading activity or buying interest. The document includes formula and Python examples, though the examples do not clearly implement all the stated conditions consistently.

The article provides no backtest or performance results. It identifies event, market, and signal-quality risks, noting that large-order and volume measures can reflect many different participants and strategies. It suggests adding valuation or financial filters and adapting the conditions to market changes. The stated screen alone does not specify trade execution, exits, or position sizing, and its order-flow interpretation should be treated as a hypothesis rather than demonstrated predictive evidence.

Key ideas

• The screen combines a specified daily decline range and amplitude with sustained large-order net volume.
• The large-order measure is treated as a possible sign of buying interest, but its causes may vary.
• The code examples do not clearly match all the stated screening conditions.
• The document supplies no performance or backtest evidence.
• It suggests adding financial filters and adjusting conditions to market circumstances.

Tags

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