---
format: "aidr-story-markdown/v1"
id: "14f103bed9821cee217bbc37ddfb46c226eeab1e269ee4c70d926fbafaaa7ac7"
canonical_url: "https://aidr.today/14f103be?lang=en"
title: "Alphabet Plunges 13.7% After Open, Erasing $520B in Steepest Drop Since 2004"
lang: "en"
requested_lang: "en"
available_langs: ["en","vi"]
translation_fallback: null
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published_at: "2026-10-29T14:06:39.000Z"
category: "Industry"
topics: ["google","llm"]
source_urls: ["https://marketbrief.now/earnings/alphabet-plunges-137percent-after-open-erasing-520b-in-steepest-drop-sin-70c5f798","https://x.com/EdLudlow/status/2115799677820088461","https://x.com/TheTranscript_/status/2115554339062493646","https://x.com/firstadopter/status/2115552826986582081","https://x.com/pequityresearch/status/2115535521397280907","https://x.com/TheTranscript_/status/2115571406725378333","https://x.com/HedgieMarkets/status/2115542174188069354","https://x.com/MelvinInvests/status/2115538142035943731"]
summary: "Alphabet shares fell 13.7% on Thursday, erasing $520 billion in market value in the stock's steepest drop since its 2004 IPO. The decline followed third quarter revenue of $127.58 billion and earnings of $2.12 a share, with Google's core Search and Other business missing revenue expectations as AI Mode adoption weighed on monetization. The drop dragged US benchmarks lower at the open, with the Nasdaq Composite falling 1.4%, the Dow Jones Industrial Average losing 0.6% and the S&P 500 dropping 0.5%."
---

# Alphabet Plunges 13\.7% After Open, Erasing $520B in Steepest Drop Since 2004

> [Open the canonical story](<https://aidr.today/14f103be?lang=en>)

**Published:** 2026-10-29T14:06:39.000Z
**Category:** Industry
**Topics:** google, llm

## Summary

Alphabet shares fell 13\.7% on Thursday, erasing $520 billion in market value in the stock's steepest drop since its 2004 IPO\. The decline followed third quarter revenue of $127\.58 billion and earnings of $2\.12 a share, with Google's core Search and Other business missing revenue expectations as AI Mode adoption weighed on monetization\. The drop dragged US benchmarks lower at the open, with the Nasdaq Composite falling 1\.4%, the Dow Jones Industrial Average losing 0\.6% and the S&amp;P 500 dropping 0\.5%\.

## Sources

- [Story source](<https://marketbrief.now/earnings/alphabet-plunges-137percent-after-open-erasing-520b-in-steepest-drop-sin-70c5f798>)
- [Story source](<https://x.com/EdLudlow/status/2115799677820088461>)
- [Story source](<https://x.com/TheTranscript_/status/2115554339062493646>)
- [Supporting source](<https://x.com/firstadopter/status/2115552826986582081>)
- [Supporting source](<https://x.com/pequityresearch/status/2115535521397280907>)
- [Supporting source](<https://x.com/TheTranscript_/status/2115571406725378333>)
- [Supporting source](<https://x.com/HedgieMarkets/status/2115542174188069354>)
- [Supporting source](<https://x.com/MelvinInvests/status/2115538142035943731>)