Alphabet shares drop 10% as AI search monetization lags, $51B cost pressure

Alphabet's shares fell nearly 10% after admitting AI-generated search results monetize far worse than traditional ad-linked results, raising concerns about the $51 billion annual cost of AI search. The market is pricing in a structural threat to Google's core ad business as AI features attract users but fail to convert into comparable ad revenue. Uncertainty remains over whether Alphabet can close the monetization gap or if this signals a lasting margin compression.

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