Investors cheer Microsoft and Alphabet's huge AI spending plans as shares of both firms rallied but not Meta's, which saw its worst trading day in 18 months (Tom Dotan/Wall Street Journal)

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Tom Dotan / Wall Street Journal:
Investors cheer Microsoft and Alphabet's huge AI spending plans as shares of both firms rallied but not Meta's, which saw its worst trading day in 18 months  —  Meta had its worst trading day in 18 months after warning of years of AI investment; shares of Microsoft and Alphabet rallied