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Alphabet shares plunge 12.6% on Google search slowdown concerns

Alphabet experienced its worst stock performance as a public company, with shares plummeting 12.6% and erasing $482 billion in market value. This decline was primarily triggered by slower-than-expected growth in Google's core search business, which is facing headwinds from the transition to AI Overviews. Despite Google Cloud showing strong growth and the company investing heavily in AI chips and infrastructure, the market reacted negatively to the search slowdown and increased capital expenditures. AI

IMPACT The transition to AI Overviews is impacting core search revenue, highlighting the financial challenges of integrating AI into established products.

RANK_REASON Major stock market reaction to a core business unit's performance and strategic shift. [lever_c_demoted from significant: ic=1 ai=0.7]

Read on Fortune →

AI-generated summary · Google Gemini · from 1 sources. How we write summaries →

Alphabet shares plunge 12.6% on Google search slowdown concerns

How we ranked this

Signal score
23 / 100
Composite score across the factors below. Higher = stronger signal that this story matters right now.
Newsworthiness bucket
Research
Major stock market reaction to a core business unit's performance and strategic shift. [lever_c_demoted from significant: ic=1 ai=0.7]
Source corroboration
Single-source cluster
Only one publisher covered this so far. Single-source stories can still rank when the publisher is high-authority, but they lack cross-source corroboration.
Topics
product, infra
Editorial topic classification. Feeds into how the story surfaces on /topic/<slug> hub pages and into the per-entity coverage mix.
AI-industry relevance
High
Clearly on-topic for AI-industry coverage.
Story freshness
Breaking (< 6h)
Fresh story with cross-source coverage still developing. Ranking may shift as more sources report.

Full methodology in our editorial standards.

COVERAGE [1]

  1. Fortune TIER_1 English(EN) · Nick Lichtenberg ·

    Alphabet just had its worst day as a public company. BofA now values Google search at a lower multiple than fossil fuel stocks

    Search revenue missed forecasts and free cash flow went negative. Bank of America now values Google’s core search business at about 10 times earnings, against 18.7 for the S&#038;P 500.