US-Iran nuclear deal by July 31?

The roughly 30% implied probability on this contract reflects something genuinely unusual: a U.S.–Iran nuclear framework that is closer to completion than at any point since the JCPOA collapsed, but still blocked by the same core disputes that killed every revival attempt between 2021 and 2025. Negotiators are reportedly near a memorandum of understanding covering a ceasefire extension, Strait of Hormuz reopening, and entry into formal nuclear talks. That's meaningful progress. It is not a nuclear deal. The resolution bar matters here. A qualifying agreement almost certainly requires something JCPOA-like — formal constraints on Iran's nuclear program in exchange for sanctions relief, with a verification regime attached. What's on the table right now is an in-principle understanding that Iran would give up its highly enriched uranium stockpile, with the critical details — where the material goes, who verifies it, what happens to future enrichment capacity — explicitly deferred to subsequent negotiations. Iran's own officials have publicly denied agreeing to a stockpile handover at all, with a senior source telling Reuters that nuclear issues are not formally part of the current package. Washington and Tehran are describing different deals again. The structural problem is that the hard questions deferred to "subsequent negotiations" are the same ones that have resisted settlement for years. Khamenei has reportedly issued internal guidance against sending enriched material abroad. Trump needs a deal he can sell domestically as genuine denuclearization. Those two constraints are not obviously compatible on a seven-week timeline. The 30% price says: the diplomatic environment is better than it's been in a long time, the momentum is real, and a fast resolution of historically intractable issues is not impossible — just unlikely before July 31.