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Investors have quickly moved to sell shares of companies that looked like they could be on the menu

The iShares Expanded Tech-Software Sector ETF is on pace for its biggest one-day decline since April 4 during the tariff-triggered downturn.

LONDON, Feb 3 : A sell-off in European software, data analytics and advertising companies accelerated on Tuesday, as updated artificial intelligence models raised fresh doubts about whether incumbent firms can defend their business models, underscoring the technology's disruptive threat to sectors once viewed as AI