Amazon , Microsoft and Alphabet , the three leaders in the market for cloud-based storage and servers, all reported deceleration in their respective businesses.
On Thursday, Amazon Web Services and Google Cloud, which also includes Workplace productivity software, showed revenue for the fourth quarter that was below analysts' estimates.
Google Cloud revenue growth slowed to 32% in the fourth quarter from almost 38% in the third period.
Amazon , which pioneered the market over 15 years ago and maintains a commanding lead, said AWS revenue growth decelerated to 20% from 27%.
"As we look ahead, we expect these optimization efforts will continue to be a headwind to AWS growth in at least the next couple of quarters," Olsavsky said.