Microsoft's CEO Just Called for a Kill Switch on AI. Here Is What It Means for the Stock.

Satya Nadella has called for emergency off switches on AI systems so authorized humans can halt a model mid-task, and the article frames this as a product decision for Microsoft, which holds about a 27% stake in OpenAI. Microsoft spent $115.95 billion on capital expenditures in fiscal 2026 and already sells control tools such as Agent 365, which had nearly 40 million agents registered two months after launch, and Purview, which tracked more than 15 billion Copilot interactions, up nearly 360%. The article argues that audit and permission controls could reduce a 'verification tax' and protect Copilot renewals, which already include more than 30 million paid seats, while also noting a more cynical view that safety rules could favor the incumbent leader. Still, fourth-quarter capex rose 109.6% to $35.80 billion, and the stock gained only 6.78% over the past year versus 19.15% for the S&P 500. The shares trade at about 30 times earnings and $541.15 each.

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Original headline: Microsoft’s CEO Just Called for a Kill Switch on AI. Here Is What It Means for the Stock.

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