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New U.S.-Canada tariff walls put critical metals stocks and ETFs in focus

8/30/2026

The eruption of a U.S.-Canada trade war, built around new tariff walls between the two countries, sent metals and materials stocks and ETFs through a repricing.

The trade is in focus now for what sustained tariffs imply for supply chains moving critical metals across the border. Longer-term investors have reason to stay cautious.

The first move in metals and materials names came when the trade war broke open. That initial repricing captures the market's read on near-term exposure.

Tariff walls between two deeply integrated economies tend to work through supply costs and margins on a timeline longer than a single session, though, and that lag is where the risk for longer-term holders sits.

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