The world's six richest individuals lost an estimated $130 billion (£102 billion) in paper wealth on Thursday, 22 October, as technology stocks fell amid concerns over returns from heavy investment in artificial intelligence.
Elon Musk recorded the biggest decline, losing an estimated $74 billion (£58 billion). The five other billionaires, Mark Zuckerberg, Jeff Bezos, Larry Page, Sergey Brin and Michael Dell, lost a combined $56 billion (£44 billion), according to Forbes' real-time billionaire wealth estimates.