Shares of Google parent Alphabet tumbled Wednesday after its key partner Apple indicated Google’s days of search engine dominance on Apple devices may be numbered, causing Google stock to limp toward one of its largest losses ever,

Google has been worrying about losing search share to AI engines like ChatGPT for a couple of years.

Shares in Google parent Alphabet plunged more than eight percent on Wednesday after Apple executive Eddy Cue testified in federal court that Google's search traffic on Apple devices declined last month for the first time in over two decades.