Microsoft Prices $25 Billion in Bonds and Expands Azure Collaboration With Lumen Amid Scrutiny of Data Center Projects
Key Facts
On October 29, 2026, Microsoft announced the pricing of a total of $25 billion in senior unsecured notes, a financing move that preceded its November 2 announcement of expanded commercial collaboration with Lumen Technologies to provide networking capabilities and cloud connectivity through Azure. The company said net proceeds from the offering may be used for general purposes, including capital expenditures, working capital, share repurchases, acquisitions and debt repayment. Microsoft did not tie the proceeds to a specific spending target or project. The announcements come as the company reviews some data center projects being carried out by third parties, amid reports of changes to network designs and delivery delays. The developments therefore combine broad-purpose financing with expanded sales channels for cloud networking services, alongside closer scrutiny of the execution of some infrastructure projects.
The notes are spread across multiple maturities, including a $2 billion tranche due on November 3, 2028, with a 4.85% coupon, and another of the same size due on November 3, 2066, with a 6.35% coupon, the highest coupon among the terms disclosed. The gap between the maturities highlights the range of financing terms offered by the company, with the coupon rising for the longer-dated tranche. Microsoft said net proceeds may be used for capital expenditures, as well as other operating and financing needs. Potential uses also include share repurchases, acquisitions and debt repayment. The offering was expected to close on November 4, 2026, according to the company’s announcement.
On November 2, Microsoft and Lumen said they were expanding their collaboration to market AI-ready enterprise networks, making Lumen’s cloud networking and application connectivity capabilities available through Azure. The partnership aims to align customers’ network transformations with their cloud computing and AI priorities, Microsoft said. The company said its work with Lumen focuses on helping customers “align their broader network transformation with their Azure, cloud and AI priorities.” The companies also plan to explore adding more Lumen capabilities to Azure and Microsoft Marketplace over time. Microsoft said Alkira, part of Lumen Connect, is already available through Microsoft Marketplace, giving customers an existing purchasing option for cloud-native networking capabilities.
The companies’ collaboration predates the latest announcement. On July 24, 2024, Lumen said Microsoft had selected its network to expand capacity and capabilities in response to rising demand for Microsoft data centers linked to AI. The expanded joint marketing adds a commercial channel to the existing relationship by linking networking services with Azure offerings and making some capabilities available through Microsoft’s marketplace. The companies did not disclose a financial value for the collaboration or a timeline for adding new capabilities in their latest announcement. They said they would share further details as their joint marketing and go-to-market plans advance. The announced step therefore remains a framework for collaboration and expanded distribution, while implementation details depend on progress with the joint plans.
The collaboration expanded as Microsoft was reassessing some projects with specialist cloud providers, also known as neocloud providers, according to a Reuters report citing Bloomberg and people familiar with the matter. The report said the company was pulling back from projects it considers high-risk and was internally discussing the possibility of signing new deals with those providers, while focusing on expanding its owned data centers. A Microsoft spokesperson described the company’s infrastructure approach as based on “flexibility and choice,” referring to the combination of more than one way to provide capacity. The company said this approach combines data centers it owns, leased facilities and partnerships with third-party providers. That puts expansion through partnerships alongside building or leasing owned infrastructure among the options the company uses.
The effects of the design review emerged in the IREN project, as Reuters reported that the company had postponed some deliveries of infrastructure dedicated to Microsoft after being asked to make changes to the network design. IREN said the delay would not result in financial penalties because it followed Microsoft’s request to modify the design. IREN was building 200 megawatts of data center capacity for Microsoft in Texas, according to the report. Reuters also reported that IREN had pushed back its target of reaching more than $4 billion in annualized run-rate revenue to January from year-end, with the timing potentially extending to the end of February. The company estimated capital spending of about $15 billion over the remainder of its fiscal year, making the timing of operations and infrastructure deliveries factors in its investment plan.