polymarketApril 23, 20267d agoIran x Israel/US conflict ends by May 15
Iran x Israel/US conflict ends by May 15?
Signal
NO TRADE
Probability
100%
Confidence
HIGH
98%
Summary.
The resolution criteria for this market have already been satisfied as of yesterday (April 22, 2026). The required 14-day continuous period without qualifying military action occurred from April 8-22, 2026, following the ceasefire that took effect on April 8. My estimated probability of 99.97% is virtually identical to the market's 99.95%, indicating no meaningful mispricing. The residual 0.03% risk accounts for extreme tail scenarios: unreported military strikes during the April 8-22 window that could be revealed before the May 15 resolution date, or technical interpretation edge cases. Importantly, ongoing hostilities—including Iran's April 22 seizure of commercial ships in the Strait of Hormuz, the US naval blockade (Operation Economic Fury), and proxy force skirmishes—are explicitly excluded from the resolution criteria. President Trump's April 21 announcement of an indefinite ceasefire extension further supports that no qualifying military action has occurred. The market is correctly calibrated at these extreme probability levels.
Reasoning.
Temporal Analysis (Critical): Today is April 23, 2026. The resolution criteria requires a continuous 14-day period without qualifying military action that begins at any time between market creation and May 15, 2026.
- Ceasefire took effect: April 8, 2026
- 14-day period completed: April 22, 2026 (yesterday)
- Days elapsed since ceasefire: 15 days as of today
The resolution criteria have already been mathematically satisfied. A continuous 14-day period without qualifying military action has occurred (April 8-22, 2026).
Why Not 100%?
The residual 0.03% risk accounts for:
-
Unreported strikes during the 14-day window (April 8-22): Small possibility that qualifying military action occurred but hasn't been reported/confirmed yet. However, both the US indefinite ceasefire extension announcement (April 21) and the absence of any credible reports make this highly unlikely.
-
Resolution criteria interpretation edge cases: While the plain reading is clear that the 14-day period has passed, there's microscopic residual risk around timing precision or undiscovered definitional ambiguities.
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Extreme black swan between now and May 15: Theoretically, new information could emerge showing the ceasefire was violated during the window, though this is extremely improbable given Presidential-level announcements and the timeline.
What Doesn't Matter for This Bet:
- Maritime clashes (April 22 ship seizures): Explicitly excluded
- US naval blockade (Operation Economic Fury): Explicitly excluded as economic warfare
- Proxy force skirmishes (Hezbollah): Explicitly excluded
- Future hostilities after April 22: Irrelevant since the 14-day window already closed
- Fed policy or energy prices: Not part of resolution criteria
Market Accuracy Assessment:
The market's 99.95% probability is essentially correct and appropriately calibrated. The bet has effectively already resolved to "Yes" based on the passage of time. The remaining 0.05% market discount likely reflects similar tail risks (unreported violations, technicalities) plus standard market inefficiency/liquidity premium for near-certain outcomes.
My estimate of 99.97% vs market's 99.95% represents no meaningful edge—this is within the noise of extreme probability estimation.
Key Factors.
The 14-day period has already mathematically completed (April 8-22, 2026) as of today (April 23)
Presidential announcement on April 21 of indefinite ceasefire extension provides political commitment signal
Resolution criteria specifically exclude ongoing hostilities: maritime clashes, naval blockades, proxy forces, cyber, sanctions
15 days have elapsed since ceasefire with no credible reports of qualifying violations
Both parties achieved partial military objectives reducing incentive for immediate escalation: Iran's infrastructure degraded, US/Israel achieved strategic goals
Economic warfare (Strait of Hormuz closure, blockades) has substituted for kinetic military action, maintaining tactical ceasefire despite strategic hostility
Scenarios.
Base Case - Resolution Criteria Met (Yes)
100%The 14-day continuous period without qualifying military action from April 8-22, 2026 stands as reported. No unreported strikes occurred during this window. The ceasefire, backed by Presidential announcement on April 21 of indefinite extension, remains intact through May 15. Ongoing maritime tensions, naval blockades, and proxy conflicts continue but do not qualify under the resolution criteria.
Trigger: Current state of affairs continues; no new credible reports emerge of qualifying military action during April 8-22 window; market resolves Yes on May 15 based on completed 14-day period
Hidden Violation Case (No)
0%Classified or unreported military action during the April 8-22 window is revealed before May 15. This could include covert airstrikes, naval strikes against Iranian territory, or Iranian missile attacks that were suppressed for diplomatic reasons during the ceasefire announcement period. Given Presidential-level announcements and timeline, this would require both governments to have concealed violations.
Trigger: Investigative reporting, whistleblower disclosures, or delayed official acknowledgment reveals qualifying military strikes during the supposedly peaceful 14-day window
Interpretation Technicality Case (No)
0%An extreme edge case where resolution criteria interpretation differs from plain reading. For example, timezone technicalities, or a previously unknown definitional issue with what constitutes 'continuous' or 'qualifying military action' that invalidates the April 8-22 period.
Trigger: Market resolution authority identifies technical flaw in how the 14-day period was counted or measured
Risks.
Unreported military action during April 8-22 window could be revealed before May 15 resolution date
Classification or diplomatic suppression of strikes during ceasefire period that could later emerge
Resolution criteria interpretation edge cases or timezone technicalities
Delayed confirmation of military actions that actually occurred during the 14-day window
Intelligence community revelations of covert operations during supposed ceasefire period
Edge Assessment.
NO MEANINGFUL EDGE. Market probability of 99.95% vs my estimate of 99.97% represents a difference of 0.02 percentage points, which is within the noise of extreme probability estimation and market microstructure effects. The bet has effectively already resolved based on the passage of the required 14-day period. At these probability levels (>99.9%), the remaining uncertainty reflects genuine tail risks (unreported violations, technicalities) rather than market mispricing. The tiny remaining probability is appropriate given we're still 22 days from official resolution date and information could theoretically emerge. No actionable edge exists - the market is correctly calibrated.
What Would Change Our Mind.
Credible investigative reporting or official disclosure revealing unreported airstrikes, naval attacks, or ground operations against Iranian soil or official facilities during the April 8-22 window
Whistleblower or intelligence community revelations of covert military strikes during the ceasefire period that were diplomatically suppressed
Market resolution authority clarification that materially changes interpretation of what constitutes 'continuous 14-day period' or 'qualifying military action'
Delayed official acknowledgment by Iran, Israel, or the US of kinetic military operations that occurred during the supposedly peaceful April 8-22 period
Sources.
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