Trade tensions are finally biting and the strain is showing up in currencies and markets. A weaker greenback is back in focus after a near 10 percent slide last year and another sharp daily drop. The usual claim that a softer dollar boosts exports is falling flat because tariffs are lifting costs for domestic producers and supply chains are still not ready. Investor nerves are fraying, with a sudden stock wobble hitting both tech and industrial names. Money is hunting for safety and speed, and that is pushing real assets higher.

Metals have surged as investors seek shelter. Industrial names like copper are up strongly, while monetary metals have raced ahead with gold jumping and silver delivering standout gains over the past year. The backdrop is a world that feels less stable, supply chains in flux, and deep concern about the path of the dollar.

US allies are now centre stage. The Korean won has sunk to its weakest since 2009, down roughly a quarter since 2022. Korean investors have been big buyers of American shares, but the wide rate gap and a large pledge of investment are weighing on the currency. The US Treasury Secretary tried to talk up the won and got a brief bounce, yet the real fear is that Seoul defends its currency by selling part of its foreign reserves, including US treasuries. That would push up US borrowing costs just as markets are looking fragile.

Japan faces a similar dilemma. The yen is testing levels that invite intervention. Rate rises have not restored confidence and past interventions have not stuck. Tokyo still holds a vast pile of US debt that could be sold to support the yen. If the slide continues, import costs rise and inflation risks worsen. Any concerted selling of dollars by allies would add fresh pressure to the US currency and to equities.

Canada is also edging away from reliance on the United States. Its surplus with its neighbour has shrunk sharply, while exports to the rest of the world have risen on the back of more oil sales to China. With Washington pushing to make more at home and eyeing alternative oil supplies, Ottawa is moving to diversify. Expect deeper energy and industrial ties with Asia as Canada seeks new markets.

The thread through all of this is simple. Pressure on allied currencies can quickly become pressure on the dollar and on US markets. If friends start selling dollars to save their own economies, dedollarisation gathers pace and the global picture shifts again.