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Will the US-Iran ceasefire hold through 7 October 2026?

Resolution: Updated:

In short

The market treats a US strike on Iran before the deadline as very unlikely, putting the ceasefire holding close to certain. That reading rests on the absence of any reported US military action against Iran in the current window and on how narrowly the contract defines a qualifying strike. A single confirmed US air or missile strike directly hitting Iranian territory would flip this immediately.

Editorial illustration for: Will the US-Iran ceasefire hold through 7 October 2026?

How the contract works

A contract here settles at $1 if the ceasefire holds, meaning the United States does not conduct a qualifying strike on Iran by 11:59 PM Iran Standard Time on 7 October 2026, and settles at nothing if the US does carry out such a strike before then. A qualifying action is defined narrowly: a direct US air strike or surface-to-surface missile strike hitting Iranian territory. Intercepted munitions, naval or artillery fire, ground incursions, cyberattacks, small-arms fire, and mere threats or authorizations do not trigger a No. A price of 0.20 on a contract like this, for example, would mean the market saw roughly a one-in-five chance of a qualifying strike happening before the deadline; it is simply the going rate buyers and sellers have settled on, not a guarantee. Positions can typically be sold before the 8 October 2026 settlement at whatever price the market shows at the time.
What the market thinks happens
$100
Yes97%

The event happens

Costs now
$0.97
If you put in $100
$103
No3%

The event does not happen

Costs now
$0.03
If you put in $100
$3,333

Probability

History starts collecting once the event is tracked

How the price has moved

The consensus figure here, 97% across the single reporting venue, Polymarket, with $342,570 traded, reads as a market that has settled firmly on continuation of the ceasefire for this specific one-day window. There is no second venue to compare against, so there is no venue spread to interpret, and no day-over-day or week-over-week move has been reported to characterize. A reading this high and this stable, in the absence of any confirmed strike reporting, is consistent with a rolling daily contract where the price simply reflects the absence of a visible trigger rather than any specific new information pushing it there.

Analysis

Context

This contract is one in a running series of short-duration questions that ask, day by day, whether the ceasefire between the United States and Iran is still intact. The ceasefire followed a period of direct confrontation in 2025, when US forces struck Iranian nuclear-related sites and Iran and Israel exchanged fire before a truce took hold. Since then, Polymarket and similar venues have listed near-daily contracts asking whether that truce survives through the next 24 hours, each one settling before the next opens. The actors are straightforward: the US administration, which controls the decision to strike; Iran's government, whose actions (missile tests, proxy attacks, nuclear enrichment moves) can provoke a US response; and Israel, whose own strikes on Iran could draw in US forces even without direct US initiation. The contract settles strictly on US action, not Israeli or Iranian action, which matters for how the market prices it. Because this is a rolling daily question, each day's contract is effectively a fresh bet on a short window rather than a long-run forecast. A string of Yes settlements does not guarantee the next one, but it does tell you no qualifying strike has happened recently, which is itself informative.
The only venue reporting data here is Polymarket, where the market-implied probability sits at 97% with $342,570 traded. A single-venue reading this high, with no competing price from another platform to check it against, suggests a market that has essentially stopped treating a US strike as a live possibility for this particular window. There is no venue spread to point to because no second venue is listed, which itself is a data point: this is a thinly watched daily contract rather than a headline market drawing competing liquidity from multiple platforms. The narrowness of the resolution rule does a lot of the work in keeping this number high. The contract excludes naval fire, artillery, ground incursions, cyber operations, and even formal strike authorizations from counting as a qualifying event. That bar is specifically a direct US air or missile strike landing on Iranian soil. Given that the US and Iran have, by the time this contract is trading, already operated under a ceasefire for an extended period without a resumption of direct strikes, the narrow trigger means the market only needs to believe that the status quo persists for roughly one more day. The volume figure, $342,570, is modest for a geopolitical contract and consistent with a daily rolling market rather than a one-off event people size large positions into. Rolling markets like this tend to see probability track the news cycle closely: when there is no reported strike, confirmed or rumored, the price drifts toward the top of its range and stays there, because traders see little reason to price in a tail event with no visible trigger in sight. What would move this number is specific and narrow: a credible report of a US strike, a presidential order confirmed by multiple outlets, or an Israeli action serious enough that US involvement becomes plausible within the 24-hour window. Absent that, a 97% reading is the market saying the ceasefire is the base case and the burden of proof sits entirely on a qualifying US strike actually happening before the Iran Standard Time deadline on 7 October 2026.

What moves the probability

  1. Narrow strike definition

    The rule excludes naval fire, ground incursions, cyberattacks, and even formal strike authorizations from counting as a resolution trigger. Only a direct US air or missile strike on Iranian soil resolves the contract No. This narrows the path to a No outcome considerably and pushes the implied probability of Yes higher.

  2. Absence of a reported trigger

    With no confirmed US strike reported in the current window, the market has little reason to price in anything other than continuation of the status quo. A rolling daily contract like this tracks the news cycle closely, and quiet news cycles push the price toward its ceiling.

  3. Israeli-Iran dynamics

    Any Israeli strike on Iran serious enough to draw a US response would be the most plausible route to a qualifying US action. This driver works against the ceasefire holding, but only if an Israeli-Iran flare-up escalates specifically to the point of US military involvement.

  4. US domestic political posture

    Decisions on striking Iran rest with the US executive branch, and any public signal of a shift toward renewed strikes, from presidential statements to Pentagon movements, would move this price quickly. The absence of such signals currently supports a high Yes reading.

  5. Thin single-venue pricing

    With only Polymarket listed and $342,570 in volume, this is a thinly traded daily contract rather than a deeply liquid benchmark. That means the 97% figure reflects a narrower pool of participants than a headline market would, and can move more sharply on a single piece of news.

The case for

  • No US air strike or surface-to-surface missile strike has hit Iranian territory in the current window, and the ceasefire has continued without interruption up to this point.
  • The resolution rule excludes most forms of military friction, including naval fire, ground incursions, and cyberattacks, leaving only a direct strike as the trigger for No.
  • The US administration has given no public signal, through official statements or confirmed troop movements, of an imminent strike on Iran.
  • Iran has not reportedly taken an action severe enough, such as a direct attack on US forces or assets, to provoke a confirmed US military response within this window.

The case against

  • A sudden escalation, such as an Israeli strike deep enough into Iran to draw explicit US military participation, could produce a qualifying US strike before the 7 October 2026 deadline.
  • Iran's nuclear program status, if a new IAEA finding or enrichment milestone is reported, could shift US political calculus toward renewed strikes.
  • Because this is a short, one-day window, even a low daily probability of escalation compounds over a long series of these rolling contracts, meaning eventual resolution to No remains possible at some future date even if unlikely on any single day.
  • Public reporting on military action can lag real events by hours, so a strike could occur and be confirmed only after the contract's own resolution deadline, complicating settlement.

What to watch

The clearest trigger between now and the 7 October 2026 resolution deadline, at 11:59 PM Iran Standard Time, is any confirmed report of a US air or missile strike landing on Iranian territory. Short of that, relevant signals include statements from the US administration or Pentagon on Iran policy, any IAEA reporting on Iranian nuclear enrichment activity, and any Israeli military action against Iran serious enough to raise the question of direct US involvement. Because this is a rolling daily contract, the next day's version of this same question will open shortly after this one settles, and its price will reflect whatever has changed by then.

Trade this contract

Venues (1)

Open on PolymarketYes 0.97
  • gas covered
  • no trading fee

More about this event

Venues (1)

Resolution rules

Determined by
Polymarket / news reports of US military action against Iran
Resolution date

The contract resolves No if the United States carries out a direct air strike or surface-to-surface missile strike that hits Iranian territory before 11:59 PM Iran Standard Time on 7 October 2026, based on credible news reporting of such an action. Naval or artillery fire, ground incursions, cyber operations, small-arms fire, intercepted munitions, and mere threats or authorizations to strike do not count toward a No resolution. If no such strike is confirmed by the deadline, the contract resolves Yes, and settlement is dated 8 October 2026.

Calculation methodology โ†’

Local context

A US strike on Iran would be a major US foreign policy story in its own right, drawing in Congress, the Pentagon, and the White House directly, and would likely move global oil prices given Iran's position in the Gulf and the Strait of Hormuz. For American readers specifically, any resumption of direct US military action against Iran would raise immediate questions about troop deployments, congressional authorization debates, and defense spending, all of which are live political issues independent of this market. For readers elsewhere, the main channel is indirect: oil price shocks and shipping disruption through the Gulf region tend to follow any serious US-Iran escalation.

Common questions

What exactly settles this contract and when?
It settles based on Polymarket's tracking of news reports confirming whether the United States conducts a qualifying military strike directly hitting Iranian territory by 11:59 PM Iran Standard Time on 7 October 2026. If no such strike is confirmed by that time, it resolves Yes; if one is confirmed, it resolves No. The settlement date given for the contract is 8 October 2026.
What does the current price actually mean?
The price is the market's running estimate of how likely it is that the ceasefire holds through the deadline, expressed as a number between 0 and 1. It is not a prediction from any single analyst or institution, it is simply what buyers and sellers of the contract currently agree the chance is, and it changes as new information arrives.
What happens if a strike is reported but disputed or unconfirmed?
Resolution depends on credible news reporting of a qualifying strike; ambiguous, unconfirmed, or disputed reports would likely delay settlement until clearer confirmation is available. The rules explicitly exclude intercepted munitions, naval or artillery fire, ground incursions, cyber operations, small-arms fire, and mere threats or authorizations, so borderline incidents of those kinds would not trigger a No regardless of how they are initially reported.
Why does the definition exclude things like naval fire or cyberattacks?
The contract is designed to track a specific, high-visibility escalation threshold, a direct US air or missile strike on Iranian soil, rather than the full range of lower-intensity frictions that can occur even during a nominal ceasefire. This keeps the resolution criteria narrow and reduces disputes over what counts, but it also means the contract can price a high probability of the ceasefire holding even amid other forms of military activity short of a direct strike.
Why is there only one venue listed for this market?
This is a short-duration, daily rolling contract rather than a major headline market, which tends to concentrate volume and listings on a single platform rather than spreading across multiple venues. The $342,570 in volume reflects that narrower base of participation.
Has a ceasefire like this broken down before?
The current ceasefire followed a period of direct US-Iran and Israel-Iran confrontation that included US strikes on Iranian nuclear-related sites. That history is part of why these rolling daily contracts exist at all, since the underlying truce has been tested before and markets continue to price the risk of renewed escalation day by day.

Related events

97%/ 3%
Yes / No
Open on Polymarket