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Business, Funding & Policy · first seen 29 October 2026, 07:00 UTC
Microsoft sells first US high-grade bonds since 2017 to fund AI
Large-scale debt issuance shows AI capex is being financed with capital markets, not just cash flow.
Microsoft is selling high-grade bonds for the first time in over nine years, joining a borrowing spree to fund AI investment. OpenAI now accounts for about 11% of Microsoft revenue, per reports.