Screening Stocks by Amplitude, Main-Player Control, and Turnover

Summary

This short-term stock screen selects shares with amplitude above 1, an indicator described as main-player control on the prior day, and turnover between 2% and 9%. The note interprets amplitude as evidence of larger price swings, the control measure as a proxy for the direction of major capital flows, and turnover as a way to focus on actively traded stocks. It suggests that the combination may identify stocks with near-term trading interest.

The author identifies risks including a small or narrow selection set, a turnover band that may exclude useful candidates, and elevated exposure associated with short-term trading. Broader screening with fundamental, technical, and valuation factors is proposed, alongside position and risk controls. The supplied indicator references and sample code do not clearly implement every stated condition, and the document provides no backtest or other evidence that the screen produces favorable results.

Key ideas

• The screen combines amplitude above 1, a prior-day main-player-control signal, and turnover between 2% and 9%.
• The rationale links amplitude to volatility and turnover to trading activity.
• The note flags narrow selection and short-term trading risk.
• It recommends adding fundamental, technical, and valuation analysis, with risk controls.
• The code does not clearly implement all stated conditions, and no performance evidence is provided.

Tags

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