The US military’s contraband list for Iran has increased risks around the Strait of Hormuz, with the Polymarket contract for fewer than 20 ships transiting between April 6-12 priced at 100% YES.
Market reaction
The blockade permits seizures of goods beyond neutral waters, and traders expect reduced transits through the Strait. The fewer than 20 ships market is fully priced at 100% YES. The Strait of Hormuz Ship Transit April market reflects expectations that enforcement actions could deter commercial vessels. There are no signs of increased transits or diplomatic breakthroughs. Overall trading volume is thin, with $0 face value reported.
Why it matters
The Strait of Hormuz handles a large share of global oil shipments, so enforcement actions there affect energy supply chains directly. The blockade’s continuation points to a drawn-out period of tension that could spill into related markets, including the US-Iran ceasefire contract. Even with thin volume now, any shift in the military posture or diplomatic status could move these markets quickly.
What to watch
Traders should track CENTCOM statements and IRGC responses closely. Any change in enforcement scope or diplomatic engagement could alter the current pricing. Announcements from IMF Portwatch and potential IRGC escalations are the most direct indicators of shipping disruption and market movement.
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How Many Ships Transit The Strait Of Hormuz This Week Apr 6 12| Contract | Odds | Δ since publish | Volume 24h | |
|---|---|---|---|---|
| April 12 | 100% | — | — | Trade → |
| Contract | Odds | Δ since publish | Volume 24h | |
|---|---|---|---|---|
| April 30 | 36.4% | — | — | Trade → |
