Polymarket

US-Iran Ceasefire by March 31: Prediction Market Odds Plummet Amidst Escalating Conflict and Rejected Peace Proposal

A Polymarket prediction market on a US-Iran ceasefire by March 31 is heavily favoring 'No' at 83.5%, following Iran's rejection of a US peace proposal and ongoing military hostilities. Allegations of insider trading have also surfaced around the market.

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— 3 min read

The high-stakes Polymarket prediction market, asking "US x Iran ceasefire by March 31?", is currently reflecting a strong consensus against a near-term cessation of hostilities, with the 'No' outcome trading at 0.835 (83.5%). This sentiment comes amidst a flurry of diplomatic activity and continued military engagement between the United States and Iran, just days before the market's resolution deadline.

Since February 28, 2026, the US and Israel have been engaged in coordinated military operations against Iran, dubbed "Operation Epic Fury" and "Roaring Lion," targeting critical nuclear facilities, military infrastructure, and leadership. This intervention followed a determination in Washington and Jerusalem that diplomatic avenues had been exhausted.

In a recent development, the Trump administration, through Pakistani officials, presented Iran with a 15-point peace proposal on March 25, 2026. This comprehensive plan aimed to end the conflict, offering sanctions relief in exchange for a rollback of Iran's nuclear program, limitations on its missile capabilities, and the reopening of the crucial Strait of Hormuz.

However, Iran swiftly and publicly rejected the US ceasefire proposal on the same day. Iranian officials, speaking to state media, described the offer as "extremely maximalist and unreasonable," while dismissing the diplomatic overture. Tehran further submitted a counterproposal that included demands for reparations and continued control over the Strait of Hormuz, terms likely to be unacceptable to Washington. An Iranian military spokesperson reportedly mocked the talks, vowing that fighting would continue.

Despite the diplomatic efforts, military actions have shown no signs of abating. Iran launched additional attacks on Israel and Gulf Arab nations, including a significant drone strike at Kuwait International Airport on March 25, 2026. Concurrently, US and Israeli forces have maintained their offensive, targeting Iranian ballistic missile infrastructure and industrial sites. Moreover, Iran-backed Iraqi militias continue to conduct consistent attacks against US forces stationed in Iraq. The Strait of Hormuz has remained effectively closed by Iran since March 2, 2026, further exacerbating regional tensions and global energy concerns.

In response to the escalating situation, the US is deploying additional military assets to the region, including two Marine units comprising approximately 5,000 Marines and thousands of sailors, as well as at least 1,000 troops from the 82nd Airborne Division.

The Polymarket question's strict definition of an "official ceasefire agreement" requires "clear public confirmation from both the United States government and the government of Iran that they have agreed to halt military hostilities against one another." Given Iran's outright rejection of the US proposal and the ongoing, intensified military exchanges, the prospect of such a mutually agreed and publicly confirmed halt by March 31 appears highly improbable.

The market's current odds, with only a 16.5% chance for a 'Yes' resolution, reflect this grim reality. Notably, these odds have decreased from 24% on March 24, 2026. The market has also drawn scrutiny due to allegations of insider trading, with reports of newly created accounts making substantial and well-timed bets on specific outcomes related to the conflict, including a 'No' on the March 31 ceasefire. While Polymarket has stated it is implementing new guardrails, these suspicions highlight the sensitive nature of information surrounding such high-stakes geopolitical events.

With the March 31 deadline rapidly approaching and both sides demonstrating a clear unwillingness to de-escalate, the prediction market's strong 'No' outcome is a logical reflection of the current geopolitical landscape.

Sources:

Market data fetched at 2026-03-25 18:15 UTC | Polymarket ID: 1466015

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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