2025-11-15
8 分钟Billions have been wiped off global tech stocks, but why?
It's World Business Express from the BBC World Service.
I'm Liana Byrne.
Switzerland has reached a breakthrough deal with the US on tariffs,
and in the UK, one pizza chain says the nation has reached peak pizza.
Okay, let's start with this global tech sell-off.
Billions wiped off valuations.
AI giants like Nvidia, Alphabet and Oracle taking heavy hits.
The tech stock index Nasdaq is down nearly two and a half percent this week.
Nvidia has lost five hundred billion dollars from its peak value of five trillion a couple of weeks ago.
And it's all raising questions about whether the AI boom has really just run ahead of itself.
It's just a few weeks since the boss of the world's largest bank,
JP Morgan, Jamie Dimon, told the BBC he believed tech stocks are overvalued.
I am far more worried about that than others.
I would give it a higher probability than I think it's probably priced in market and by others.
The amount of uncertainty and I put geopolitical category, fiscal spend that category,
politics in that category, the remilitarization of the world in that category,
all these things cause a lot of issues that we don't know how they're going to sort out.
So I'd say the level of uncertainty should be higher in most people's minds than what I call normal.
Takara Small is CBC's national technology columnist in Toronto and she explained to me why these AI favourites have gone from red hot to risk.