The NZX50 index had fallen about 3.7 percent at the close of market today - as Donald Trump's tariffs continue to reverberate globally.

It hasn't had a fall of this magnitude since the pandemic.

Sharesies Co-CEO Brooke Roberts says it's hard to say how long markets will keep rattling around.

"Look, it's unprecedented times in terms of the shock that has happened to the markets at the moment based off the back of the tariffs - and the ripple effect that's happening to economies."

BusinessDesk reports Trade Minister Todd McClay says the NZ Embassy in Washington will raise concerns over tariffs to the US trade representative.

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