Observed Signal · Feb 6, 2026 · Earnings Report · Source: Trending Topics · Impact: 4/5 · Sentiment: Negative
Big Tech's $660B AI Capex Plans Trigger Market Turmoil
Amazon, Microsoft, Google and Meta have raised their planned AI-related capital expenditures to a combined $660 billion for the current year, according to the companies' quarterly reports. The unprecedented spending plans triggered market turbulence: Amazon, Microsoft and Alphabet lost about $900 billion in combined market value after their earnings, and including Meta, losses exceeded $1 trillion. Amazon announced a more than 50 percent capex increase to $200 billion, while Microsoft shares fell 18 percent after it disclosed that OpenAI accounts for 45 percent of its $625 billion cloud contract backlog. Alphabet doubled planned capex to $185 billion despite record annual revenue and profit. Apple outperformed, with record quarterly revenue of $144 billion and a 17 percent capex cut, following a January agreement to use Google's Gemini technology for its AI features and Siri. Meanwhile, the planned $100 billion OpenAI-Nvidia infrastructure investment was not completed.
Combined $660B AI capex plans and a $1T market-cap selloff across Amazon, Microsoft, Alphabet and Meta signal a major repricing of AI infrastructure spending, with direct implications for digital advertising platforms, cloud pricing, and the AI-driven adtech ecosystem.
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Key Takeaways & Evidence Grounding
- Amazon, Microsoft, Google and Meta plan combined AI capital expenditures of $660 billion for 2026.
- Amazon announced a more than 50% rise in capex to $200 billion, $50 billion above analyst expectations.
- Amazon, Microsoft and Alphabet lost roughly $900 billion in market capitalization after their quarterly reports; including Meta, losses exceeded $1 trillion.
- Microsoft disclosed that OpenAI contributes 45% of its $625 billion cloud contract backlog.
- Apple reduced quarterly capex by 17% to $2.4 billion and partnered with Google to use Gemini technology for Siri AI features.
- The planned $100 billion OpenAI-Nvidia infrastructure investment agreement was not concluded.
Connected Companies & Entities
11 Entities mapped“Company CEO Andy Jassy announced a more than 50% increase in capital expenditures to $200 billion....”
“Microsoft shares fell 18% after its cloud unit grew 26% but spending on data centers surged 66%....”
“Apple reported record quarterly revenue of $144 billion and reduced capex by 17% to $2.4 billion....”
“Microsoft disclosed that OpenAI accounts for 45% of its $625 billion cloud contract backlog....”
“Apple signed an agreement with Google to use Gemini technology for its AI features and Siri....”
“Amazon, Microsoft, Google and Meta plan combined investments of $660 billion for the current year....”
“Amazon's investments exceed AWS's latest annual revenue by 55%....”
“Google parent Alphabet exceeded $400 billion in annual revenue and doubled planned capex to $185 billion....”
“The planned $100 billion investment and infrastructure agreement between OpenAI and Nvidia was not concluded....”
“Oracle lost 18% in value despite raising $25 billion in debt and expressing confidence in OpenAI....”
“SaaS stocks are suffering from the rise of AI, for example via Anthropic's Claude Cowork....”
Ontology Mapping & Concepts
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