SIG-111
geopolitics
SHADOW
🕶 SHADOW
Iran closes its airspace by May 31?
Direction NO underpriced · Confidence LOW · Closes 2026-05-31
Market price
20%
at signal
Our estimate
16%
calibrated
Gap
+4.6pp
market vs ours
Status
SHADOW
2026-05-31 close
Evidence
- Airspace closures are rare discrete events — base rate over any given 23-day window is low absent active kinetic conflict.
- Iran derives substantial overflight revenue (Emirates, Qatar Airways, others routing Europe-Asia) — strong economic disincentive to close.
- Market at 20.5% already embeds a meaningful premium over base rate, suggesting traders are pricing some known tension.
- No public reporting in my knowledge of an imminent strike, ultimatum, or scheduled escalation pinned to the May 31 window.
- Prior episodes (June 2025 Israel-Iran exchange) showed Iran kept airspace open even during direct missile exchanges, only briefly NOTAM'd.
Counter-evidence
- Without real-time news access I cannot rule out a fresh escalation (Israeli strike, US ultimatum, nuclear-site incident) in the past 48 hours that would justify the 20.5% mark or push true probability higher.