How the contract works
A contract on this question settles at $1 if no qualifying strike occurs between Israel and Iran by the 30 September 2026 deadline, and at nothing if one does. The price at any moment reflects what traders collectively think the chance of that holding is; a contract priced at 0.30, for example, would imply the market sees roughly a three-in-ten chance the ceasefire survives, though that is a hypothetical, not this market's actual level. Settlement depends specifically on verified reports of an Israeli or Iranian air strike or surface-to-surface missile strike that directly hits the other country; intercepted munitions, air defense actions, proxy fighting, cyber operations, and naval or artillery exchanges do not qualify. A position taken now can typically be sold before the settlement date at whatever price the market has moved to by then.
Yes89%
No11%
Probability
How the price has moved
The consensus level of 88% is drawn from a single tracked venue, Polymarket, carrying total volume of $262,848. No separate day-over-day or week-over-week move, nor an opening range, has been supplied here, so the honest reading is that the current level itself is the primary signal available: a price in the high 80s, on a moderate but not deep pool of capital, indicating traders see the ceasefire as more likely than not to hold but not treating a strike as a remote possibility either.
Analysis
Context
Israel and Iran fought a direct 12-day conflict in June 2025, trading air strikes and missiles on each other's territory for the first time in decades, after years of proxy confrontation through Hezbollah, Syria, and Iraqi militias. That round ended in a ceasefire announced with US involvement. The question asks whether that ceasefire survives intact through the end of September 2026, more than 15 months after it took hold.
The underlying dispute has not gone away. Iran's nuclear program, the status of its uranium enrichment, and Israel's stated willingness to strike facilities it deems a threat remain unresolved. Both governments have also continued to manage tensions through proxies rather than direct exchanges, which is a distinct category under this market's rules: strikes by or against Hezbollah, Houthi forces, or militias in Syria and Iraq do not by themselves settle this question. Only a direct air strike or surface-to-surface missile strike between Israel and Iran counts.
The market resolves based on verified reporting of such a strike, tracked through 30 September 2026, 11:59 PM Iran Standard Time. Absent that, it resolves Yes.
The market's current reading sits at 88% across the tracked venue, which is a clear lean toward the ceasefire holding rather than a genuine toss-up. That level is consistent with the basic fact pattern: since the ceasefire took effect after the June 2025 conflict, there has been no verified direct Israeli or Iranian strike on the other's territory for over a year. A market pricing near 90% is essentially saying that the pattern of restraint observed so far is more likely than not to continue for the roughly five remaining weeks to the settlement deadline, not that a return to conflict is unthinkable.
Only one venue, Polymarket, is tracked here, with total volume of $262,848. That is a moderate but not deep pool of trading interest for a geopolitical event of this scale, which matters for how much weight to put on the price: it reflects genuine capital taking a position, but with a single liquidity source there is no cross-venue spread to check whether other pools of traders see it differently. A thinner market can move more sharply on a single credible report than a deeper one would.
The structural reason the price sits high rather than at extremes near 99% is that the underlying dispute driving the original 2025 conflict is unresolved. Iran's enrichment activity and Israel's stated red lines on it have not disappeared; they have simply not produced a direct strike since the truce. Markets pricing ceasefires in active but paused conflicts tend to sit in the 80s or 90s rather than near certainty, because the conditions that caused the last round of fighting are still present even when fighting itself has stopped.
What would move this number is specific and narrow under these settlement rules: a verified Israeli strike on Iranian soil, or an Iranian missile strike on Israeli territory. Proxy escalation, air-defense intercepts, or strikes on third countries would not settle the question directly, though they could still move the price if traders read them as raising the odds of a direct strike following.
What moves the probability
No qualifying strike since June 2025
The single strongest factor behind the high price is the track record itself: over a year without a direct Israeli or Iranian strike on the other's territory. Each additional week without an incident reinforces the market's view that the truce is durable, though it does not make a strike impossible.
Iran's nuclear program status
Any confirmed acceleration in Iranian uranium enrichment, or an IAEA report flagging new activity, would raise the odds the market assigns to an Israeli strike, since that has been Israel's stated trigger in the past. This is the most direct channel by which the price could fall.
Proxy conflict spillover
Continued fighting involving Hezbollah, Houthi forces, or militias in Syria and Iraq does not itself settle this market, but a sharp escalation in any of those theaters could be read by traders as raising the risk of a direct Israel-Iran exchange, nudging the price down even without a qualifying event yet occurring.
US diplomatic and military posture
Continued US engagement in the region, including any renewed mediation or forward-deployed forces, tends to support the ceasefire holding, since US involvement was central to ending the June 2025 conflict. A visible US pullback would remove one of the restraining forces the market is currently pricing in.
The case for
- No verified direct Israeli or Iranian strike on the other's territory has occurred since the June 2025 ceasefire took hold.
- Both governments have so far managed tensions through proxies and diplomacy rather than direct exchanges, and that pattern would need to continue for only about five more weeks.
- Continued US diplomatic involvement in the region has so far correlated with the truce holding, and that involvement remains in place as of late August 2026.
- The settlement bar is narrow: intercepted munitions, air defense actions, and proxy fighting do not count, which excludes several categories of friction that have occurred without triggering a No resolution.
The case against
- Iran's nuclear enrichment program remains active and unresolved, and any confirmed acceleration could prompt an Israeli strike before 30 September 2026.
- Proxy escalation involving Hezbollah, the Houthis, or Iraqi and Syrian militias could draw either country into a direct exchange even without either side initially intending one.
- A change in Israeli or Iranian leadership posture, or a domestic political shift in either country, could alter the calculus that has held the ceasefire together so far.
- Roughly five weeks remain before the settlement deadline, which is enough time for a single confirmed strike to reverse a resolution that has otherwise held for over a year.
What to watch
Between now and 30 September 2026, the figures most likely to move this price are any IAEA reporting on Iranian enrichment activity, statements from Israeli or Iranian officials on strike red lines, developments in proxy theaters such as Lebanon, Syria, and Yemen, and any US State Department or Pentagon statements on regional military posture. A single verified report of an Israeli air strike on Iranian territory or an Iranian missile strike on Israeli territory would settle the question immediately as No; absence of such a report through the 30 September deadline settles it Yes.
Trade this contract
Open on Polymarket
- gas covered
- no trading fee