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Will the US–Iran ceasefire continue through October?

Contracts for October 9, 15 and 31 assess the absence of a narrowly defined US strike on Iran. These are independent questions with different deadlines, not an exhaustive set of outcomes. The headline does not cover every form of military activity.

US x Iran ceasefire continues through October 31?

Market estimate / Yes

75.5%
7 days-0.5 pp
30 days—

Price basis: Bid/ask midpoint

Probability history

0%50%100%
Recorded source observations · CLOB price historyOct 9, 2026 — Oct 16, 2026

This number reflects a source price. It is not a certainty, a personal forecast or an executable offer.

CONTRACTS

Outcomes

These contracts ask separate questions. Their probabilities must not be added together.

US x Iran ceasefire continues through October 31?

Yes75.5%Bid/ask midpoint
No24.5%Bid/ask midpoint

Contract deadline · per API: Oct 31, 2026, 11:59:00 PM UTC

NO requires a qualifying US air strike or surface-to-surface missile strike to impact Iran by 23:59 Iran Standard Time on the specified day. Intercepted munitions, cyber operations, ground incursions, artillery and the minor strikes listed in the original are excluded. Maritime territory and airspace are excluded; internal waters are included. Sources are official US and Iranian government and military information plus a consensus of credible reporting. Conflicting reports may allow three full calendar days for review. NOTE: API endDate fields differ from the rules’ time zone; the API deadline is presented as metadata while the original defines the precise condition.

Original source rules (English)

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.

Rules version: c832447f6d4e0e2a80c68478facf45c2f42110b39afc7e42ef0ea407e0753f88

US x Iran ceasefire continues through October 15?

Yes ✓100%Gamma outcome price · Confirmed outcome
No0%Gamma outcome price

Contract deadline · per API: Oct 16, 2026, 03:59:00 AM UTC

NO requires a qualifying US air strike or surface-to-surface missile strike to impact Iran by 23:59 Iran Standard Time on the specified day. Intercepted munitions, cyber operations, ground incursions, artillery and the minor strikes listed in the original are excluded. Maritime territory and airspace are excluded; internal waters are included. Sources are official US and Iranian government and military information plus a consensus of credible reporting. Conflicting reports may allow three full calendar days for review. NOTE: API endDate fields differ from the rules’ time zone; the API deadline is presented as metadata while the original defines the precise condition.

Original source rules (English)

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.

Rules version: 1d4a0b30bde3ac5e44dbe966ebc435f94bf358caf57d01c1cef602219eee5507

US x Iran ceasefire continues through October 9?

Yes ✓100%Gamma outcome price · Confirmed outcome
No0%Gamma outcome price

Contract deadline · per API: Oct 10, 2026, 03:59:00 AM UTC

NO requires a qualifying US air strike or surface-to-surface missile strike to impact Iran by 23:59 Iran Standard Time on the specified day. Intercepted munitions, cyber operations, ground incursions, artillery and the minor strikes listed in the original are excluded. Maritime territory and airspace are excluded; internal waters are included. Sources are official US and Iranian government and military information plus a consensus of credible reporting. Conflicting reports may allow three full calendar days for review. NOTE: API endDate fields differ from the rules’ time zone; the API deadline is presented as metadata while the original defines the precise condition.

Original source rules (English)

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.

Rules version: fcd81203213ea59f658055a18da1957b7ae29f4ebaaf4852d7c0b19a1d264b98

How this question resolves

Editorial summary / translation. Original source rules remain authoritative.

NO requires a qualifying US air strike or surface-to-surface missile strike to impact Iran by 23:59 Iran Standard Time on the specified day. Intercepted munitions, cyber operations, ground incursions, artillery and the minor strikes listed in the original are excluded. Maritime territory and airspace are excluded; internal waters are included. Sources are official US and Iranian government and military information plus a consensus of credible reporting. Conflicting reports may allow three full calendar days for review. NOTE: API endDate fields differ from the rules’ time zone; the API deadline is presented as metadata while the original defines the precise condition.

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