The richest people in the world lost more than a combined $200bn on Thursday when stock markets cratered in response to tariffs slapped on imports to the US by Donald Trump.
Just over a month ago, a gradual downturn in the stock market meant that 10 tech-focused US billionaires had lost a similar value across the course of 2025 – but this time, a sharper shock wiped out that sum in one trading session.
