Alphabet shares were indicated to open at $287.92 on Thursday, down 10.5 percent from Wednesday’s close, a move that would erase more than $400 billion from a market capitalization that sat at $3.95 trillion a day earlier. The decline coincides with a third-quarter earnings report in which Google search revenue came in at $63 billion, missing analyst estimates and rising just 1 percent sequentially.

The monetization gap

Chief Business Officer Philipp Schindler acknowledged on the earnings call that the rapid adoption of AI Mode queries carried a cost: lower monetization rates relative to traditional search. The company is now rolling out ads in AI Mode to more users and expanding them internationally for the first time in an effort to close the gap. Chief Executive Sundar Pichai framed the moment as analogous to the mobile transition over a decade ago, arguing that the priority remains building the best user experience before layering on revenue.

Query growth versus revenue growth

Pichai highlighted that AI helped search queries grow at their fastest year-over-year pace in five years, yet the financials are lagging the usage surge. The dynamic underscores the broader pressure from generative AI chatbots such as ChatGPT and Claude, which offer alternative discovery paths. Google’s own Gemini powers the AI Mode integration, but popularity has not yet translated into proportional revenue.

The historical context

If the decline holds beyond a 9.77 percent drop at the open, it would mark Alphabet’s worst single-day earnings reaction since its 2004 initial public offering. Bernstein analyst Mark Shmulik noted that the AI narrative requires a clean story to sustain investor interest, but that story only matters if the numbers track in the right direction. His assessment: Google is probably an AI winner, but not today.