Citigroup expects that the price gains seen on the stock markets amid the artificial‑intelligence (AI) boom could continue for some time. “The AI bubble isn’t finished yet” said Dirk Willer, Citigroup’s chief of macroeconomics and asset‑allocation, during an interview with the Podcast Handelsblatt Invest on Wednesday.

Having witnessed the dot‑com bubble burst in early‑2000s New York, Willer is convinced that this time will also bring market over‑exuberance. “The more impressive the technology, the more people overinvest” he explained.

Given the huge AI spending by major U.S. tech giants, it’s understandable that investors want to diversify more. But Willer cautions that if a tech bubble were to burst, “almost all assets would fall”.