Why OpenAI’s IPO Plans Could Be a Massive Win for Microsoft

Summary

OpenAI is in the news for several reasons, mostly centered around its plans to go public. The company is pursuing an initial public offering (IPO) that would value the company at around $1 trillion. That’s caused Elon Musk to take OpenAI to court on the grounds that the company, of which Musk was a co-founder, has betrayed its mission by moving from a nonprofit to a for-profit structure. Lost in that noise is the news that OpenAI and Microsoft Corp. NASDAQ: MSFT have reframed their partnership. Microsoft will remain OpenAI’s primary partner, but OpenAI can now scale across multiple cloud platforms.Get Microsoft alerts:Sign Up Microsoft Today$402.11 -5.66 (-1.39%) As of 09:30 AM Eastern This is a fair market value price provided by Massive. Learn more.52-Week Range$356.28▼$555.45Dividend Yield0.91%P/E Ratio23.94Price Target$560.88 Microsoft also retains a license to OpenAI’s models and products through 2032. However, that license is now non-exclusive as well. For its part, OpenAI has committed to purchasing $250 billion in Azure compute services, and revenue share payments from OpenAI to Microsoft will continue through 2030, subject to a total cap. With MSFT down over 15% in 2026 and investors questioning the company’s artificial intelligence (AI) infrastructure ambitions, it’s fair to wonder: What’s in it for Microsoft? The answer is not found in technology, but in a more boring place—Microsoft’s balance sheet. A $13 Billion Bet That Keeps Paying OffMicrosoft invested approximately $13 billion in OpenAI between 2019 and 2023. Management targeted a $92 billion return on that investment. As it turns out, that number was far too conservative. In October 2025, OpenAI completed its reorganization as a for-profit entity. In doing so, Microsoft’s economic interest in OpenAI was pegged at 26.79% on a fully diluted, as-converted basis. The restructuring represented a clean accounting event for Microsoft. In the nine months ending March 31, 2026, Microsoft recorded $5.9 billi...