Microsoft's $678 billion backlog and CFO Amy Hood's comments suggest OpenAI could account for roughly one-third of Microsoft's future revenue pipeline.

The memo cited "important progress in key areas" like Azure and Microsoft 365 Copilot. These businesses have faced pressure amid generative AI boom.

Microsoft's Azure revenue surpassed $100 billion in FY26, but market sees Apple at 56.5% YES to be largest company by market cap on August 31.