How the contract works
A contract tied to this question settles at $1 per contract if the ceasefire holds through the deadline, and at nothing if the United States carries out a qualifying strike first. The price at any moment is the market's running estimate of that chance, expressed as a probability between zero and one; a contract trading at 0.30, for example, would mean traders collectively see roughly a three-in-ten chance of the ceasefire breaking before the deadline, not that outcome itself being this market's price. Settlement is scheduled for 23 October 2026, based on whether a qualifying US air strike or surface-to-surface missile strike directly impacted Iran by 11:59 PM Iran Standard Time on 22 October 2026. Positions can typically be bought or sold before that date at whatever price the market is quoting at the time, rather than held to settlement.
Yes99%
No1%
Probability
How the price has moved
The only venue carrying this contract, Polymarket, shows a consensus price of 92% with $924,949 in total volume. No separate venue-to-venue spread exists to compare, since all the tracked trading sits on a single platform. Detailed day-over-day or week-over-week price history beyond the current level is not available here, but the level itself describes a market that treats continuation through 22 October 2026 as the heavily favored outcome, consistent with the pattern seen across prior rolling ceasefire windows since mid-2025.
Analysis
Context
This market is one in a recurring series that asks whether the ceasefire between the United States and Iran will survive a short forward window, in this case through 22 October 2026. The ceasefire traces back to the US strikes on Iranian nuclear sites at Fordow, Natanz and Isfahan in June 2025, carried out during the wider Israel-Iran war, after which a ceasefire was announced. Since then, these periodic contracts have tracked the probability that no new qualifying US strike occurs before each deadline.
The resolution standard is narrow and specific: only a US air strike or surface-to-surface missile strike that directly impacts Iranian territory counts as breaking the ceasefire for this contract. That is a meaningfully lower bar than a declaration of war or a sustained campaign, but it is also a higher bar than many incidents that make headlines, such as interceptions or naval skirmishes, which are explicitly excluded.
As of 20 October 2026, resolution is set for 23 October 2026, with the qualifying window running through 11:59 PM Iran Standard Time on 22 October. The contract settles based on Polymarket's own determination and on news reports of any US military action against Iran during that window.
The consensus price across tracked venues sits at 92%, all of it on Polymarket, which has carried $924,949 in volume on this specific contract. A reading that high says the market sees the three-day window to 22 October as very unlikely to contain a qualifying US strike, not that such a strike is impossible over a longer horizon. The volume, while real, is modest next to major political or macro contracts, which means the price can move more on a single piece of news than a deeper market would.
The narrowness of the resolution window matters more than it might appear. A qualifying event under these rules is specifically a US air strike or surface-to-surface missile strike that directly hits Iranian territory; interceptions, naval gunfire, small-arms incidents, ground incursions, cyber operations and minor surface strikes are all carved out. That means even a tense few days in the Gulf, or a limited exchange involving proxies, would not by itself move this market to No. Only a direct, attributable US strike on Iranian soil within the window resolves it negative.
The base rate from the broader pattern of these rolling ceasefire contracts is informative: each prior window has had to clear the same narrow bar, and the ceasefire established after the June 2025 strikes has persisted across multiple such windows without a qualifying US strike recurring. That track record is part of why the market prices continuation so heavily, though it is not a guarantee for any single new window, since each one is judged independently on the facts of that period alone.
No single publicly reported trigger explains short-term price moves in the absence of fresh news, and the market has not been reported to show a sharp dislocation tied to a specific event in the lead-up to this window. That pattern โ a high, fairly settled price without a clear news-driven spike โ is itself informative: it suggests traders see the current diplomatic and military posture as stable enough that no new escalation signal has emerged to challenge it.
What moves the probability
Narrow strike definition
Only a direct US air strike or surface-to-surface missile strike on Iranian territory counts against this contract. Interceptions, naval incidents, and cyber or small-arms activity are explicitly excluded, which removes several plausible escalation paths from resolving the market No.
Three-day resolution window
The window runs only through 22 October 2026, Iran Standard Time. A short window structurally favors continuation because there is less calendar time for any new strike decision, authorization, and execution to occur before the deadline.
Precedent from prior ceasefire windows
The ceasefire following the June 2025 US strikes on Fordow, Natanz and Isfahan has held across multiple earlier rolling contracts of this type. Each successful prior window adds to the market's confidence that the current posture is stable, though it does not guarantee the next one.
Iran's nuclear program status
Any new intelligence or IAEA reporting suggesting rapid Iranian nuclear advancement could shift US calculus toward renewed strikes. This is the main latent driver that could push the price down quickly if it changes.
Regional flashpoints involving US forces
An attack on US personnel or assets attributed to Iran or its proxies could prompt direct US retaliation against Iranian territory, which would be a qualifying event. This remains the most direct and fastest-moving path to a No resolution.
The case for
- No US air strike or surface-to-surface missile strike directly hits Iranian territory before 11:59 PM Iran Standard Time on 22 October 2026.
- The current diplomatic and military posture between Washington and Tehran continues without a new US decision to strike.
- Any incidents that do occur in the window, such as interceptions or naval encounters, fall outside the qualifying definition and do not trigger a No resolution.
- The pattern from prior rolling ceasefire windows, which have resolved Yes without a qualifying strike recurring, continues for this window as well.
The case against
- A US air strike or surface-to-surface missile strike directly impacts Iranian territory at any point before the 22 October 2026 deadline, which resolves the contract No immediately regardless of prior stability.
- An attack on US forces or assets in the region attributed to Iran triggers a direct US retaliatory strike within the window.
- New intelligence on Iran's nuclear program prompts a US decision to strike before the short window closes.
- Because the window is only three days, even a single fast-moving escalation cycle, not a sustained campaign, is enough to flip the outcome.
What to watch
The key date is 22 October 2026, 11:59 PM Iran Standard Time, the close of the qualifying window, with formal resolution following on 23 October 2026. Between now and then, watch for any reported US military action against Iranian territory, any attack on US forces or assets in the Gulf region attributed to Iran or its proxies, and any new IAEA or intelligence reporting on Iran's nuclear program that could shift US decision-making. Statements from the White House, the Pentagon, or Iranian officials carrying an explicit threat or warning in this window would also be relevant signals.
Trade this contract
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