A Volatility and Weekly MACD Screen with a Lower-Low Condition

Summary

This article describes a technical stock screen that combines a daily amplitude threshold, a positive weekly MACD histogram, and a current daily low below the prior day’s low. It presents the conditions as a way to find volatile stocks whose weekly momentum indicator remains positive while their latest low suggests a pullback. Indicator formula and Python examples are included to show how the rules could be expressed, but the snippets are illustrative and require careful verification of data fields, date alignment, and condition logic before use.

The proposed method is framed for short-term trading and is not supported by reported backtests or performance statistics. The article cautions that relying only on technical signals can overlook company fundamentals, and that a lower low can occur amid risky volatility or after chasing a move. It suggests adding fundamental filters, considering market conditions, and applying allocation and risk controls. Entry timing, exits, costs, and portfolio construction are not specified, so the screening rules alone do not establish a complete strategy.

Key ideas

• The screen combines daily amplitude, a positive weekly MACD histogram, and a lower daily low than the previous day.
• The conditions seek volatile stocks with a positive weekly indicator and a possible short-term pullback.
• The provided formula and code examples need verification for data alignment and implementation details.
• The article warns that technical-only screening can neglect fundamentals and expose traders to substantial volatility.
• Market context, risk controls, and further validation are suggested, but 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.