Polymarket

US-Iran Permanent Peace Deal by May 31: Polymarket Traders Weigh Diplomatic Progress Against Deep-Seated Divides

A Polymarket prediction market gauges the likelihood of a permanent peace deal between the US and Iran by May 31, 2026, with current odds favoring 'No' despite recent reports of a 'largely negotiated' framework agreement.

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The Polymarket prediction market, asking "US x Iran permanent peace deal by May 31, 2026?", has captured significant attention with over $45 million in trading volume. This market is set to resolve to "Yes" only if a formal agreement is established by the deadline, explicitly indicating a lasting end to military hostilities between the United States and Iran. Temporary ceasefires or agreements not signaling a permanent cessation of conflict will not qualify.

As the May 31 deadline rapidly approaches, recent developments suggest a flurry of diplomatic activity. On May 24, 2026, President Donald Trump stated that a potential peace deal with Iran had been "largely negotiated" and that "final aspects and details" were being discussed, with an announcement expected "shortly." These claims followed extensive mediation efforts primarily spearheaded by Pakistan, with involvement from Qatar, Saudi Arabia, the UAE, Turkey, Egypt, Jordan, and Bahrain.

Details emerging from these negotiations indicate a proposed framework that includes an end to hostilities on all fronts, including Lebanon, the reopening of the crucial Strait of Hormuz, the unfreezing of approximately $25 billion in Iranian assets, and the lifting of the US naval blockade on Iranian ports. There are also discussions about the withdrawal of American forces from Iran's immediate vicinity. Crucially, the plan reportedly involves Iran committing to never pursue nuclear weapons, with negotiations on its nuclear program, particularly regarding highly enriched uranium, slated to occur after the initial peace deal is established.

However, significant obstacles and discrepancies persist. Iran's semi-official Fars News Agency has disputed President Trump's assertion that the Strait of Hormuz will be fully reopened under the deal, insisting that it will remain under Iranian management. Furthermore, a key point of contention is the sequencing of negotiations; Iranian officials prefer to delay talks on their nuclear program until after the war ends and the strait reopens, while US officials reportedly seek a more comprehensive agreement addressing all issues simultaneously. Iran's Foreign Ministry spokesman Esmaeil Baqaei has also stated that the nuclear issue was not part of an initial framework being drafted.

The market's resolution criteria require a definitive, permanent peace deal, not merely a temporary ceasefire or a framework for future negotiations. While a "memorandum of understanding" or "framework agreement" is being discussed, some reports suggest it would set up a longer window for negotiating a more permanent deal. This distinction is critical for the market's outcome.

Currently, the Polymarket odds reflect this complex reality. The "Yes" outcome, indicating a permanent peace deal by May 31, 2026, stands at 0.365 (36.5%), while the "No" outcome is priced at 0.635 (63.5%). This implies that despite the considerable diplomatic momentum and President Trump's optimistic pronouncements, traders perceive the strict definition of a "permanent peace deal" and the remaining unresolved core issues—such as the Strait of Hormuz control and the sequencing of nuclear talks—as significant hurdles that are unlikely to be fully overcome within the next week. The 63.5% probability for "No" suggests that the market believes the path from a "largely negotiated" framework to a fully finalized and explicitly permanent peace agreement by May 31 is still highly challenging, especially given the historical animosity and internal divisions within Tehran that could complicate finalization.

As the deadline approaches, market participants will be closely watching for any official, definitive announcements from both Washington and Tehran that unequivocally meet the market's stringent resolution criteria for a lasting end to military hostilities. Absent such a clear and permanent agreement, the market appears poised to resolve to "No."

Sources:

Market data fetched at 2026-05-24 06:15 UTC | Polymarket ID: 1919425

This article is generated by AI for informational purposes only. It does not constitute financial advice. Always do your own research before making any investment decisions. Data sourced from Polymarket and public web sources.

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