How a niche copper trade became a real-time gauge of Trump’s next tariff move

AI Summary

Copper price differences between two metals exchanges are being used by investors as an indicator of U.S. tariff risks related to trade policies under the Trump administration. This niche trade serves as a real-time market gauge for potential tariff changes.

The widening price of copper between two metals exchanges is offering investors a gauge of U.S. tariff risk.