Google parent Alphabet Inc. posted fourth-quarter revenue that missed analysts’ expectations as growth in its cloud business slowed. The shares fell more than 8%.

The internet giant reported sales that narrowly missed Wall Street’s estimates and worried investors about the company’s A.I. business.

Alphabet reports fourth-quarter earnings after Tuesday's closing bell. Investors will be focused on cloud momentum and AI traction, with shares of the Google and YouTube parent company holding fast near the record levels achieved last week.

Alphabet missed Wall Street estimates for quarterly revenue on Tuesday, in a sign the Google parent was taking a hit from increased competition in the digital advertising market and a slowdown in its cloud computing business.