Scenario × Asset Analysis

What Happens to PCE Price Index When the Copper-Gold Ratio Collapses?

Copper-gold ratio collapse signals growth concerns and is often called "Dr. Copper's recession warning". What happens when the industrial-to-monetary metals ratio crashes?

PCE Price Index

129.45

as of Feb 1, 2026

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Trigger: Copper Price (Global)

$12,951.35

Condition: copper-gold ratio falls to multi-year lows

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How PCE Price Index Responds

When the Copper-Gold Ratio Collapses, PCE Price Index typically responds to the changing macro environment. Personal Consumption Expenditures price index, the Fed's preferred inflation measure. This scenario is particularly relevant for inflation because changes in Copper Price (Global) directly influence the macro environment for PCE Price Index. Investors should monitor both the trigger condition and PCE Price Index's response to position accordingly.

Scenario Background

The copper-gold ratio measures pounds of copper per one ounce of gold. Copper is the industrial-growth proxy ("Dr. Copper" for its economic PhD). Gold is the monetary and safe-haven metal. Their ratio captures the balance between growth and fear in global macro.

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Historical Context

The copper-gold ratio hit cycle lows in early 2016 (coincident with Chinese stimulus concerns), December 2018 (Fed pause), March 2020 (COVID crash), October 2022 (hard-landing fears), and mid-2024 (growth concerns alongside AI optimism). Each low was followed by ratio expansion as either growth recovered or monetary easing supported both metals but copper benefited more from industrial demand recovery. The 2020 ratio bottom at 0.15 was followed by a move to 0.28 (87% gain) by 2022. The 1998 rati...