Polymarket

US-Iran Permanent Peace Deal by May 31: Odds Dwindle Amidst Diplomatic Stalemate

A Polymarket prediction market tracking a permanent peace deal between the United States and Iran by May 31, 2026, shows significantly low odds for a 'Yes' resolution, following President Trump's recent rejection of Iran's peace proposal and ongoing hostilities.

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— 3 min read

The Polymarket prediction market, "US x Iran permanent peace deal by May 31, 2026?", with a substantial trading volume of over $20 million, currently reflects a strong skepticism towards a swift resolution, with 'No' trading at 0.795 (79.5% probability) and 'Yes' at a mere 0.205 (20.5% probability). This market seeks to resolve positively only if a definitive agreement explicitly ending military hostilities between the two nations is reached by the specified deadline.

The path to a permanent peace deal by the end of May appears increasingly challenging, especially following recent developments. On May 11, 2026, US President Donald Trump publicly rejected Iran's latest peace proposal, deeming it "totally unacceptable." This statement signals a significant diplomatic setback, coming after a period of fragile ceasefire and ongoing, albeit difficult, negotiations.

The current hostilities, termed the "2026 Iran war," began with US and Israeli strikes against Iran on February 28, 2026, which notably resulted in the death of Iran's Supreme Leader, Ali Khamenei. Iran retaliated, including closing the crucial Strait of Hormuz, a move that has since disrupted global trade and energy markets. A temporary two-week ceasefire, brokered by Pakistan, was announced on April 7, 2026, and has seen extensions, but the underlying tensions remain high.

Negotiations, primarily mediated by Pakistan, have focused on several contentious issues, including freedom of navigation through the Strait of Hormuz, Iran's nuclear and ballistic missile programs, sanctions relief, and the framework for a long-term peace agreement. The US has consistently demanded a moratorium on all uranium enrichment by Iran for at least 12 years and the removal of its highly enriched uranium stockpiles. Conversely, Iran has asserted its sovereign rights and expressed reluctance to transfer uranium abroad, while also indicating a preference to discuss nuclear matters at a later stage, after an end to the broader conflict.

Recent reports indicated that the White House believed it was nearing a one-page Memorandum of Understanding (MoU) to end the war and establish a 30-day framework for further nuclear negotiations. However, the subsequent rejection of Iran's response by President Trump underscores the deep divisions that persist. Iranian officials have sent mixed signals, with some dismissing US proposals as unrealistic, highlighting the significant gaps between the two sides.

The current market odds of 79.5% against a peace deal by May 31, 2026, reflect the severe challenges in bridging these differences within the tight timeframe. While some analyses suggest that traders might be pushing the probability of an agreement to later dates in May or June, the outright rejection by the US President just weeks before the deadline makes a definitive, jointly confirmed peace deal by May 31 highly improbable. The ongoing military posturing, economic pressures, and the fundamental disagreements over nuclear capabilities and regional security continue to overshadow diplomatic efforts, making a comprehensive and permanent peace deal by the end of May a long shot.

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Market data fetched at 2026-05-11 06:16 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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