US x Iran ceasefire continues through September 20?

CRITICAL TEMPORAL CONTEXT: Today IS the resolution date (September 20, 2026). This is not a forward-looking prediction - the outcome has been determined by events that already occurred.

RESOLUTION ANALYSIS:

The question asks: "Does the US x Iran ceasefire continue through September 20?" Resolution to "No" occurs if the US takes qualifying military action against Iran by September 20, 2026, 11:59 PM Iran Standard Time.

DOCUMENTED QUALIFYING EVENTS:

1. August 30, 2026: US forces struck IRGC rocket launchers on Larak Island (Iranian terrestrial territory)

   • Qualifies: Air strike/missile strike on Iranian terrestrial territory
   • Timeline: 21 days before resolution deadline

2. September 1, 2026, 12:00 PM ET: CENTCOM officially confirmed US forces began striking IRGC targets in Iran

   • Official US government confirmation (meets resolution criteria source requirement)
   • Multiple locations struck: Ahvaz, Jiroft civilian airport, Bandar Abbas, Kuhestak
   • Iranian Red Crescent confirmed civilian casualties in Kuhestak
   • All qualify: Air strikes and surface-to-surface missile strikes directly impacting Iranian terrestrial territory
   • Timeline: 19 days before resolution deadline, well beyond the 3-day confirmation window

RESOLUTION CRITERIA COMPLIANCE:

• ✅ Qualifying actions: Air strikes and missile strikes (not excluded categories)
• ✅ Direct impact on Iranian terrestrial territory (multiple cities struck)
• ✅ Official US government source confirmation (CENTCOM statement)
• ✅ Credible reporting from Iranian sources (media and Red Crescent)
• ✅ Occurred before deadline (August 30 and September 1 << September 20)
• ✅ 3-day confirmation window satisfied (19+ days elapsed since September 1)

CEASEFIRE STATUS: The research clearly documents that the ceasefire "collapsed completely by July-August 2026" and "active combat operations between US and IRGC remain ongoing as of September 20, 2026." The ceasefire objectively did NOT continue through September 20.

MARKET MISPRICING ANALYSIS: The 93.65% "Yes" probability appears to be a severe market inefficiency, likely caused by:

• Participants confusing nascent diplomatic talks (Qatar/Pakistan mediation) with actual ceasefire
• Misunderstanding the resolution criteria (backward-looking through Sept 20, not forward-looking)
• Information lag or market failure to incorporate CENTCOM's official September 1 confirmation

PROBABILITY ASSESSMENT: Given overwhelming documentary evidence of qualifying strikes 19-21 days ago with official US government confirmation, the probability this resolves "Yes" (ceasefire continued) is effectively 0%. I assign 1% only to account for:

• Extreme tail risk that all sources are fabricated/unreliable (extremely unlikely given CENTCOM official statement)
• Unforeseen technicality in resolution interpretation (e.g., all strikes somehow don't qualify)

This should resolve to "No" with near-certainty.

MASSIVE EDGE IDENTIFIED: Market pricing 93.65% for 'Yes' versus true probability ~1% for 'Yes' represents an ~92 percentage point mispricing. This is an extraordinary market inefficiency.

The market appears to have catastrophically failed to incorporate publicly available, official US government confirmation from September 1, 2026 (19 days ago) documenting qualifying military strikes. This represents either:

1. Severe information lag in market participants
2. Fundamental misunderstanding of resolution criteria (confusing future ceasefire prospects with past qualifying events)
3. Market illiquidity/dysfunction preventing price discovery

RECOMMENDATION: If this market were still accepting positions, 'No' would be essentially a free-money arbitrage opportunity. The documented evidence is overwhelming and unambiguous.

EXPECTED VALUE: Betting 'No' at implied odds would have expected value of approximately +9,200% (betting 'Yes' at 93.65% has EV of approximately -92%).

This represents one of the clearest mispriced prediction markets conceivable, where the factual outcome has already been definitively determined by events occurring weeks before the deadline, yet the market price reflects near-certainty of the opposite outcome.