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Home/Geopolitics/Israel x Iran ceasefire continues through October 31?
PolymarketGeopoliticsUpdated 9m ago

Israel x Iran ceasefire continues through October 31?

Market probability
75.0%
+8.5 percentage points
over 24 hours66.5% → 75.0%
61 days until the qualification deadline
Latest eligible start date: October 31, 2026 at 4:29 PM ET
The market can resolve after this date while a qualifying period defined in the rules completes.

The move lacks solid trading support — treat the new probability with caution.

The pricing has weak support: healthy trading volume and market depth, an unusually wide spread.

How credible was the move?

Three separate questions — a move can be genuine while the latest price is still settling. Methodology →

Move validity

Is the move backed by real trading and depth?

Weak

The pricing has weak support: healthy trading volume and market depth, an unusually wide spread.

Consensus stability

Has the market settled at the new probability?

Forming

Movement has slowed (8.5 points over six hours) but the market has not fully settled.

Contract clarity

Will the rules resolve without ambiguity?

High

The resolution rules are relatively specific, with a named source and a defined deadline.

Recent trade activity$57.8K traded

From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.

What this market actually measures

This market will resolve to "Yes" if a state of ceasefire remains in effect between Israel and Iran through the listed date, 11:59 PM Iran Standard Time (IRST). Otherwise this market will resolve to “No”.

This summary shows the opening of the venue's official rules. ProbCast has not yet generated an independent plain-English interpretation for this contract — review the full rules before relying on it.

View full official resolution rules

This market will resolve to "Yes" if a state of ceasefire remains in effect between Israel and Iran through the listed date, 11:59 PM Iran Standard Time (IRST). Otherwise this market will resolve to “No”. A state of ceasefire will be considered to no longer be in effect between Israel and Iran if either Israel or Iran takes a qualifying military action against the other country between market creation and the listed date, 11:59 PM IRST. A qualifying military action refers to an air strike or a surface-to-surface missile strike, initiated by Israel or Iran, that directly impacts the other country. 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 Israel or Iran do not constitute a military action regardless of any damage incurred. A military action will be considered to impact Israel or Iran if it directly impacts the terrestrial territory of Israel or Iran, including any internal waters. Maritime territory and airspace are not encompassed. Where territorial borders are disputed, all territory claimed by and under the de facto control of the relevant state 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 (IRST) 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. If, at the end of the third calendar day, conflicting reports remain as to the occurrence, attribution, or timing of the action, this market will resolve 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 Israel and Iran and credible reporting.

Why the odds moved

The probability rose 8.5 percentage points over the last 24 hours (66.5% → 75.0%).

No verified catalyst has been linked to this move yet. ProbCast does not attribute moves to news without evidence connecting the timing of a specific report to the repricing.

What could move this market next?

  • The latest eligible start date passesOctober 31, 2026 at 4:29 PM ET

    After this date, no new qualifying period can begin under the rules.

  • Completion of the qualifying period defined in the rules

    Resolution follows once the defined period finishes without a disqualifying event.

Derived from the contract's own mechanics as of Aug 30, 8:00 PM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.

Probability by deadline

The same event, priced across deadline contracts on this venue.

  • By Aug 3196.5%
  • By Sep 3082.5%
  • By Oct 31 (this market)75.0%

Extending the deadline from Sep 30 to Oct 31 removes about 7.5 percentage points of implied probability.

Advanced analysis (experimental)

Research signals — these models are still accumulating the history needed for full validation, and they can disagree with the headline read. Model confidence: low · expected error ±27 pts.

Reacting to newsLegacy movement classifier: noisy

What's happening

high classifier confidence
Reacting to news

The price is actively repricing on real volume. The number is still moving — don't treat the latest print as settled consensus yet.

Change (pts)1H0.06H+8.524H+8.57D+8.5
Score breakdown — Movement, Liquidity & Trust

ProbCast Trust Score

22/ 100 · Low

Weakly supported. Treat this number skeptically. Main caveat: wide spread.

ProbCast measures how reliable this market probability appears — not what to trade.

Movement85

Magnitude of recent probability change

Liquidity72

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ProbCast — Odds Reliability

Know whether prediction-market odds can be trusted. ProbCast analyzes liquidity, market activity, spreads, and price movement to help distinguish meaningful repricing from thin-market noise.

Questions? Chat with us on Telegram
TodayTop MoversEventsAll MarketsWhat ChangedVenue DivergencePolymarket vs KalshiMethodologyCoverageMeta's ArenaWatchlistTerms of UsePrivacyCrypto
  • Probability moved 8.5 pts in ≤6h on adequate liquidity
  • Flow one-directional across 80 participants (broad, not a single order)

Read the latest price with caution; conditions make it an unreliable summary right now.

More details — reliability score, dynamics, durability
Reliability score
27Low
Where the price path tends to go next22 observed
  • Thin-liquidity spike51%
  • Choppy / mean-reverting32%
  • Stable consensus6%

Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.

DurabilityMedium· half-life <1h
PredictabilityElevated irreducibility

Secondary read: leaning toward Thin market.

A read-only classification of the market environment — how much weight the current price deserves as a read of consensus. It describes conditions, never a trade.

Market data

24h volume

$70.8K

Liquidity

$39K

Total volume

$251.7K

Category
Geopolitics
Venue
Polymarket
Open interest
—
Spread
4.0 pts
Best bid
73.0%
Best ask
77.0%
7-day range
66.5% – 76.5%
Resolves
Oct 31, 2026

Depth of the order book and volume

Trust breakdown

22/100 · Low

Weakly supported. Treat this number skeptically. Main caveat: wide spread.

  • Liquidity anchor+50
  • Price steadiness+5
  • Wide spread-15
  • Limited history-8
  • Big move, weak support-10
Trust score22 / 100
How these scores work →
View on Polymarket

ProbCast provides prediction-market data and analytics for informational purposes only. Not financial, trading, betting, investment, legal, or tax advice. Market-implied probabilities can be wrong, illiquid, manipulated, or affected by ambiguous resolution rules.

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Market-implied probabilities can be wrong, illiquid, manipulated, or affected by ambiguous resolution rules.

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