Microsoft’s $357 Billion Rout Is Worst Since Deepseek Hit Nvidia

Yahoo Finance Published Updated Economy
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Affected assets and topics

GROWTH EARNINGS

Why it matters

Microsoft's stock plummeted 10% after its earnings report showed slowing growth in its key cloud unit, resulting in a $357 billion valuation loss, the largest since Nvidia's $593 billion rout last year.

Article tone

Neutral How the article is written, as reported by the source.

Expected market reaction

Bearish Confidence 90% How confidence is read Horizon: Short term Impact: Moderate

Market impact analysis based on bearish sentiment with 90% confidence.

Evidence trail

Evidence
Source Yahoo Finance
Claim Microsoft’s $357 Billion Rout Is Worst Since Deepseek Hit Nvidia
AI inference Bearish · 90%
Generated 2026-01-29 21:22

AI provenance

Analysed by Llama 3.1 8B Instant (Groq) Methodology v1.0 Generated
Technical identifiers
Provider tag
groq-llama-3.1-8b-instant
Analysis version
groq-llama-3.1-8b-instant
Article id
39177

Original source

The software giant’s stock closed down 10%, its biggest plunge since March 2020, following Microsoft’s earnings after the bell Wednesday, which showed record spending on artificial intelligence as growth at its key cloud unit slowed. The only bigger one-day valuation destruction was Nvidia Corp.’s $593 billion rout last year after the launch of DeepSeek’s low-cost AI model. Microsoft’s move is larger than the market capitalizations of more than 90% of S&P 500 Index members, according to data compiled by Bloomberg.

Read the full article on Yahoo Finance

Original article published by Yahoo Finance on January 30, 2026. Analysis and insights provided by AnalystMarkets AI.

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