A global rally in technology shares stalled on Thursday after disappointing earnings reports from Alphabet and Samsung. The downturn was driven by renewed concerns over whether massive investments in artificial intelligence are yielding adequate financial returns.
Alphabet experienced its worst single-day drop in company history, with shares falling as much as 15.8% and erasing over $550 billion in market value. This decline triggered a broader sell-off in AI-related stocks, including semiconductor and software companies.