Microsoft (MSFT) stock fell below $380 amid Microsoft’s AI infrastructure costs and concerns about hyperscaler credit quality. Morgan Stanley’s warning added pressure as markets questioned whether spending can deliver enough revenue and profit.
Microsoft shares dropped 3% as investors focused on costs for data centers, chips, networking equipment and power. The company keeps expanding Azure capacity for AI services and cloud demand.
The stock move followed Morgan Stanley’s warning about hyperscaler creditworthiness. The concern is whether technology companies can keep funding infrastructure without adding pressure to cash flow and margins.
Microsoft approved Horizon 1, the first quarter of IREN’s planned 200MW deployment. The project forms part of a cloud agreement valued at about $9.7 billion and shows the scale of capacity Microsoft expects to require.
IREN shares rose in premarket trading after the approval. However, the deal drew attention to the spending needed to build and operate AI computing systems as Microsoft expands cloud infrastructure.
Microsoft’s expanded AMD partnership will bring newer AMD infrastructure into Azure. The company plans to use AMD systems internally and make the technology available to Azure customers seeking alternatives to Nvidia-based systems.
The arrangement broadens Microsoft’s hardware options and reduces reliance on one chip provider. Even so, Microsoft still needs strong returns from the computing capacity deployed across Azure, Copilot and AI products.
Microsoft reported fiscal fourth-quarter 2026 revenue of $90.01 billion, up 18% from a year earlier. Adjusted earnings reached $4.74 per share, while Azure revenue grew 43% as cloud and AI demand remained strong.
Those results showed growth, but investors are also watching capital spending closely. MSFT stock has faced selling as the market weighs strong revenue against rising infrastructure costs, competition and uncertainty over future AI margins.
Microsoft faces competition from Alphabet, Amazon and Meta, which continue to expand their own cloud and AI systems. Any shift in OpenAI’s cloud relationships could reduce Microsoft’s perceived advantage.
The stock’s move below $380 shows investors want clearer evidence that higher infrastructure spending can produce durable profit growth. Future updates on Azure demand, AI pricing and capital spending will remain central to MSFT stock performance.
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