Shares of Rightmove Plc tumbled the most on record after the company warned it’s likely to take longer to meet previously stated revenue growth goals, as it unveiled plans to boost investment in artificial intelligence.

The UK’s go-to website for property listings reaffirmed its expectations for revenue growth of about 9% this year, and said it anticipated 8% to 10% in 2026, according to a statementBloomberg Terminal Friday. Rightmove’s AI plans could impact future profit growth, some analysts said.