Investors appear to be losing patience with Big Tech's prodigious artificial intelligence investments this week after Meta Platforms signaled deeper spending and a long road to profitability. The concession from Meta in its quarterly report late on Wednesday cast a cloud over Microsoft and Alphabet, which will both report quarterly earnings on Thursday. Meta's stock sank 15% in extended trade after it forecast higher AI spending next year, while Microsoft was down 2%, Alphabet fell 3% and Nvidia dropped 1.4% in reaction...

The Facebook parent’s capital expenditures this year will rival outlays from Google and Microsoft, but advertising growth is slowing...

Shares of Meta Platforms tumble after a disappointing outlook, while IBM slumps after revenue misses analysts’ estimates. Microsoft, Alphabet, and Intel are scheduled to report earnings after the close of trading Thursday...

More earnings from Big Tech companies roll in later today, with Microsoft and Alphabet reporting after the market close. Intel, Snap, Roku, and Western Digital also release results. The group follows Meta Platforms...