Global tech stocks plunge over AI slowdown fears after US midterms

Trillions of dollars have been wiped off the stock value of major tech firms in the US, Europe and Asia after the US midterm elections sparked concerns of a slowdown in artificial intelligence (AI) development according to BBC.

Shares in firms across the tech sector plummeted following Democratic wins in Tuesday’s midterms.

A number of Democratic candidates had run campaigns on slowing AI – and there are broader concerns about whether the huge sums being spent on the technology will pay off.

The tech-heavy Nasdaq composite index closed down by more than 5.5% on Thursday, losing an estimated $2.5tn (£1.9tn) in market value, according to Dow Jones data.

Other key US stock indexes also saw big losses in their worst days since 2025.

In Asia, tech-heavy indexes fell sharply on Friday morning as firms that make the computer chips and other equipment that power AI saw their shares slide.

The sell-off also hit European chipmakers. In European trading on Thursday, shares in chipmaker Infineon fell by more than 8.5% while tech equipment manufacturer ASML dropped by 6.5%.

AIStock