US stock indices fell sharply at the close of trading on 5 November. The Dow Jones fell by 3.44%, the S&P 500 by 4.36% and the tech-heavy Nasdaq by 5.52%. According to Reuters, this was the Nasdaq's biggest one-day fall in 19 months.
Total market capitalisation shrank by more than $2 trillion.
Shares in technology companies and companies linked to artificial intelligence fell the most. SpaceX lost more than 10%, Nvidia more than 9% and Tesla around 10%.
The sell-off came amid expectations of tighter controls on the development of artificial intelligence and the construction of data centres following the midterm elections in the US.
