Equity Screening with Amplitude, Controlling-Shareholder Change, and Rising DEA

Summary

This document describes a short-term stock screen combining daily price amplitude above 1, a controlling-shareholder measure whose absolute daily change exceeds 21, and a rising DEA value from MACD. It shows examples of how to express these conditions in a screening formula and Python-style pseudocode, then sorts qualifying stocks by a capital-flow ranking. The implementation examples may require adaptation to the available platform data and indicator conventions.

The accompanying discussion characterizes the approach as technical and control-related, and warns that it ignores company fundamentals and can be unstable because indicators respond to market sentiment. It suggests adding fundamental, technical, market, and industry context, along with risk controls. No backtest, sample period, benchmark, or measured return is supplied, so the screen’s effectiveness is not demonstrated. The document also does not define the controlling-shareholder metric in detail, which limits reproducibility across data providers.

Key ideas

• The screen requires amplitude above 1, an absolute controlling-shareholder daily change above 21, and rising MACD DEA.
• The examples include implementations for a formula language and Python-like workflow.
• Qualifying stocks are further ordered using a capital-flow ranking in the Python example.
• The source warns that the rules omit fundamentals and may produce unstable results.
• No empirical performance evidence or detailed definition of the control metric is provided.

Tags

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