Stock Screening by Amplitude, Main-Force Control, and Recent Limit-Ups

Summary

This Chinese-language post describes an equity screen combining three conditions: daily amplitude above a threshold, a prior-day proxy for major-player control based on price relative to its five-day average, and at least one limit-up event during the past month. The rationale is to find volatile stocks attracting substantial market attention and trading activity. It includes a rough indicator reference and an illustrative Python outline, though the code’s limit-up test is not a reliable implementation of the stated recent-event condition.

The post offers no backtest, performance figures, or evidence that the signals predict returns. It explicitly warns that the screen omits company fundamentals and may be inaccurate or unstable, particularly in turbulent markets. It suggests adding financial and industry information and refining the selection criteria. The method is therefore best understood as a simple candidate-generation idea, not a validated trading system.

Key ideas

• The screen combines high amplitude, a prior-day price-to-five-day-average proxy, and a recent limit-up event.
• Its rationale is to identify volatile stocks with signs of substantial participant interest.
• The document provides an illustrative implementation, but its limit-up logic does not robustly test the stated condition.
• The strategy omits fundamentals and has no reported performance validation.

Tags

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