Stock Screening with Price Amplitude and Persistent Large-Order Flow

Summary

This Chinese stock-selection note proposes screening for price amplitude above 1, large-order net-volume readings above 0.05 over at least three consecutive days, and then ranking by fund strength. It presents the combination as a short- to medium-term way to focus on stocks with notable price movement and sustained large-order activity. The formula examples use an absolute value for net volume, so they test the magnitude of the reading rather than requiring positive net buying.

The document provides example indicator expressions and illustrative Python, but no backtest or performance evidence. It warns that flow-based selection may be vulnerable to misleading or manipulated activity and recommends checking technical and fundamental conditions, as well as sector and leading-stock context. The sample Python references undefined data and functions, which limits its value as a directly runnable implementation. The stated threshold and screening concept therefore need careful data and signal validation before use.

Key ideas

• The proposed screen combines amplitude above 1 with large-order net-volume magnitude above 0.05 for three consecutive days.
• It ranks qualifying stocks by a fund-strength measure.
• Using absolute net volume checks magnitude and does not by itself establish positive buying flow.
• The note cautions about misleading activity and recommends broader market, sector, technical, and fundamental checks.
• It provides no performance evidence, and the sample Python depends on undefined inputs and functions.

Tags

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