
Microsoft and OpenAI restructured their partnership Monday, ending Microsoft's revenue share to OpenAI, capping OpenAI's payments back to Microsoft, and stripping the exclusivity that had bound OpenAI's models to Azure — a structural shift that, per Wedbush and PitchBook, clears OpenAI's path to a public listing reportedly targeted for late 2026.
Three weeks ago, we reverse-engineered SpaceX's S-1 from public filings and Microsoft and OpenAI announced an amended partnership Monday afternoon that does three things at once. Microsoft will no longer pay a revenue share to OpenAI. OpenAI will continue to pay Microsoft a 20% revenue share through 2030 — but that obligation is now subject to a fixed cap, independent of OpenAI's technology progress. And the IP license Microsoft holds on OpenAI's models, previously exclusive and tied to the elastic concept of "AGI achievement," is now a non-exclusive license with a hard 2032 expiration.
The combined effect is a clean reset of the most-watched commercial relationship in AI. Azure remains OpenAI's "primary cloud partner," and OpenAI products will continue to ship first on Azure unless Microsoft opts out. But OpenAI is now free to serve all of its products to customers on AWS, Google Cloud, and Oracle — which retroactively cleans up the $50 billion AWS commitment OpenAI signed earlier this year and which had been sitting in legal limbo against Microsoft's exclusivity claim.
Read this against the secondary-market backdrop and the framing changes. OpenAI has been trading on the secondary market in the $850–880B range — only a few percentage points above its $852B March primary mark, while Anthropic ran from ~$120B last October to a reported $1T implied. Caplight's seller-to-buyer ratio for OpenAI shares ran 5:1 in Q1. The market was pricing the structural overhang: an exclusivity contract that capped OpenAI's strategic optionality, and an "AGI clause" that gave Microsoft an open-ended call on OpenAI's IP.
Both are now retired. PitchBook reads the restructure as the precondition for OpenAI's IPO push; the Wall Street Journal reported in January that the company is laying groundwork for a Q4 2026 listing. The question for secondary participants is no longer whether OpenAI can go public — it's whether Monday's reset is already priced into the gap between OpenAI's secondary mark and Anthropic's, or whether that gap closes from here. Secondary prints over the next 72 hours will be the cleanest near-term read.

While the Microsoft news was crossing wires, Vinted — the 16-year-old Vilnius-based secondhand fashion marketplace — quietly closed an oversubscribed €880M ($1.0B) secondary share sale at an €8B equity valuation, up 60% from the €5B it cleared in 2024. The round was led by EQT (increasing its stake), with new investors Ontario Teachers' Venture Growth and Schroders Capital joining, alongside BlackRock, Lombard Odier, Pinegrove Opportunity Partners, and Baillie Gifford.
Three things make it worth pulling out of the European-tech bucket. The structure: Vinted received zero proceeds. The full €880M went to early investors and longtime employees selling existing shares — a textbook secondary share sale, not a primary capital raise. The cohort: this is a profitable, 16-year-old consumer business outside the AI/Power 20 trade. And the buyer mix: a Canadian pension's late-stage venture vehicle, a UK asset manager's private-equity arm, BlackRock, Lombard Odier, and Pinegrove (the Brookfield-Sequoia secondaries platform), with Baillie Gifford increasing its position.
Read the buyer list as the story. Q1 secondary headlines were Stripe's tender, Anthropic's tender, and the AI infrastructure trade. Vinted is the cleanest 2026 datapoint that the same institutional pools — pensions, sovereigns, large asset managers — are allocating into structured liquidity events for non-AI names, when the company is profitable and the round is oversubscribed.

euros Vinted received from the €880M deal. (Missed it? Scroll back up.)
A revenue share obligation that's bounded by a fixed dollar ceiling rather than running open-ended — once the cap is reached, the payments stop, regardless of what happens to revenue afterward. The structure shows up in commercial agreements where one party wants to limit its long-term obligation while preserving the other's near-term economics.
Monday's OpenAI–Microsoft amendment is a textbook case: OpenAI keeps paying Microsoft 20% of revenue through 2030, but only up to a capped total, after which the obligation extinguishes. Caps are how you convert an unbounded liability into a knowable one — useful in M&A and partnership structuring, and a precondition for a clean IPO disclosure.