PolymarketResolvedOutcome: YesClosed Part of US-Iran ceasefire continues through...? →

US x Iran ceasefire continues through October 31?

Outcome

Yes

Polymarket resolved this market to Yes.

Final Yes price before close 96¢
Known at
$11.9M total volume

Yes price before the listed close date

7 days before
24 hours before
1 hour before

Counted back from the listed close date, ; price capture stops 6 hours after it. Midpoint prices known at each point; implied probability in cents. Times in UTC.

Medium gotcha risk

Gotcha risk at close — resolution-rule assessment

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The market title suggests a bilateral ceasefire between the United States and Iran, but the resolution rules focus entirely on one-sided action: only a qualifying strike initiated by the United States directly impacting Iranian land or internal waters will trigger a No outcome. Strikes by Iran against US forces, US cyberattacks, naval gunfire, artillery or rocket systems, and intercepted munitions with falling debris do not count toward a No resolution. Attribution and incident confirmation rely on an open-ended consensus of credible reporting alongside official government statements, with an automatic three-day delay mechanism to adjudicate conflicting reports. Anyone evaluating this market should note that significant military exchanges could occur without breaking the strictly defined criteria for the ceasefire to continue.

Wording ambiguity
Low
Source discretion
Med
Timing risk
Low
Exceptional clauses
High

AI-generated before close · google/gemini-3.7-flash ·

Price history range

Price path to close

Yes price
70¢80¢90¢100¢00:0008:0016:0000:00
40¢60¢80¢100¢Oct 24Oct 26Oct 28Oct 31
40¢60¢80¢100¢Sep 21Oct 4Oct 17Oct 31

Why it moved before close

Down 52 points · 29 Oct 2026, 22:00 UTC

Related outcomes

The market fell from 96% to 45% alongside 5 related ceasefire outcome dates repricing downward simultaneously, the likely driver of the move.

  • Largest hourly change: 22:00 UTC, 64% of the net 24-hour change.
  • Closes 26 hours after the move hour.
  • 5 related outcomes moved in the same window, 5 in the same direction. Largest: November 8 (down), November 15 (down), November 22 (down).

No news-backed explanation was ready before close.

AI-generated · 30 Oct 2026, 00:44 UTC

Up 10 points · 26 Oct 2026, 06:00 UTC

Related outcomes

The price rose from 83% to 93% as part of a broader repricing across related ceasefire outcomes, with four related timeline markets moving up in the same direction.

  • Largest hourly change: 06:00 UTC, 20% of the net 24-hour change.
  • Closes 4 days after the move hour.
  • 4 related outcomes moved in the same window, 4 in the same direction. Largest: October 28 (up), November 8 (up), November 22 (up).

The news search didn't complete, so no catalyst is claimed.

AI-generated · 27 Oct 2026, 11:43 UTC

Market explained before close

This market measures whether a ceasefire between the US and Iran holds through October 31. It specifically tracks whether the US initiates qualifying airstrikes or surface-to-surface missile strikes directly impacting terrestrial Iranian territory.

How it resolves

The market resolves to Yes if the United States does not execute a qualifying military action against Iran by October 31 at 11:59 PM Iran Standard Time. The market resolves to No if the United States takes a qualifying military action against Iran by that deadline. A qualifying action is an air strike or surface-to-surface missile strike initiated by the US that directly impacts Iran's terrestrial territory or internal waters. Intercepted munitions, debris, surface-to-air missiles, small-arms fire, ground incursions, cyber operations, naval or artillery fire, minor strikes like FPV drones, and unexecuted threats do not qualify. Resolution is decided using official US and Iranian government/military information and a consensus of credible reporting.

Key dates

  • Cutoff time: — 11:59 PM Iran Standard Time on October 31

Resolution source

Official information from the governments and militaries of the United States and Iran and a consensus of credible reporting

AI-generated before close · google/gemini-3.7-flash ·

Resolution rules at close

This market will resolve to “No” if the United States takes a qualifying military action against Iran by the specified date, 11:59 PM Iran Standard Time. Otherwise this market will resolve to “Yes.” A qualifying military action refers to an air strike or a surface-to-surface missile strike, initiated by the United States, that directly impacts Iran. An air strike includes bombs, air-to-surface missiles, and air-launched drones. A surface-to-surface missile strike includes one-way attack drones and surface-to-surface missiles such as cruise or ballistic missiles. The following actions do not constitute a qualifying military action: Munitions destroyed or intercepted before impact; Surface-to-air missile strikes; Small-arms fire; Ground incursions; Cyber operations; Naval gunfire and artillery fire; Howitzers, artillery pieces, mortars, and rocket artillery (e.g. MLRS systems); Minor surface-to-surface strikes, including short range loitering munitions, FPV drones, and ATGM strikes; Any threat, authorization, or announcement of force that has not been executed. Any munition that is intercepted or destroyed before impact does not constitute a qualifying military action. Debris, fragments, or any wreckage from intercepted munitions that land on Iran do not constitute a military action regardless of any damage incurred. “Iran” refers to the terrestrial territory of Iran, including its internal waters. Iran’s maritime territory and airspace are not encompassed. Where territorial borders are disputed, all territory claimed by and under the de facto control of Iran as of market creation will qualify. The occurrence, attribution, and timing of a qualifying military action will be primarily determined based on a consensus of information available from the resolution sources. Where multiple sources conflict regarding the occurrence, attribution, or timing of a relevant military action, this market will remain open until the earlier of: i) the confirmation of the occurrence, attribution, and timing of the action based on a consensus of information available from the resolution sources or ii) 3 full calendar days (Iran Standard Time) from the date of the first credibly reported evidence of the action. If this period would extend past the end date, this market will remain open to allow for 3 full calendar days to pass. At the end of the third calendar day, if conflicting reports remain, the incident will be adjudicated based on the totality of information available from the resolution sources at that time. No single statement, denial, or presentation of evidence will govern where it is contradicted by the totality of information. The resolution sources for this market will be official information from the governments and militaries of the United States and Iran and a consensus of credible reporting.

About this page

A record of how this market resolved. The prices, analysis and rules shown here come from data Brierpoint captured or generated before close.