‘A stomach of steel’: amateur investors ride out dips amid talk of an AI bubble

As one 23-year-old buys a house with his winnings, experts say risk-takers are fuelling an unsustainable market

It was more than just a hunch, says Jacob Foot of his first foray into US tech stock investments back in 2020.

The 23-year-old says he played around with artificial intelligence tools in his first job and thought to himself: this technology is going to be a big deal.