Iran threatens to block oil shipments through Strait of Hormuz if attacked

## Market Snapshot

Strait of Hormuz Ship Transit market shows 62.5% YES for 20 ships transiting by May 31, down from 69% a day ago. Trump’s Hormuz Blockade Announcement market is at 40.5% YES, slightly down from 42% a day ago. Bab el-Mandeb Strait Closure market remains largely unaffected at 4% YES.

## Key Takeaways

– Recent developments appear consistent with a reduced likelihood of ships transiting the Strait of Hormuz, as indicated by the downward trend in YES pricing. – The current geopolitical situation suggests a decreased probability of Donald Trump announcing the lifting of the US blockade by the end of May. – Iran’s actions and statements do not currently impact the Bab el-Mandeb Strait market, suggesting limited relevance.

## Article Body

Iran has issued a stern warning that it will obstruct oil shipments through the Strait of Hormuz if attacked, as stated by Saeed Siah-Sarani, an IRGC Navy commander. This announcement comes amid heightened tensions in the Gulf region, where the U.S. has been actively engaging with Iranian naval forces since March 2026. The U.S. has already sunk more than 60 Iranian vessels, with Iran deploying submarines as a countermeasure. The Strait of Hormuz is pivotal for global oil flows, with approximately 20% of the world’s oil passing through it. The potential blockade of this strategic chokepoint could significantly disrupt the oil supply, especially to major Asian economies.

## Market Interpretation

The market interpretation indicates a high impact on the Strait of Hormuz Ship Transit scenario, with the warning from Iran suggesting a significant threat to shipping activity. The pricing, which has seen a noticeable drop in YES odds, is consistent with an increased risk of Iran implementing its threat. Similarly, the Trump Hormuz Blockade Announcement market reflects uncertainty, with a decrease in expected YES outcomes. The impact is assessed as moderate for this market.

## What to Watch

Key developments to watch include any further escalation in the U.S.-Iran naval conflict, official statements from U.S. Central Command, and responses from major oil-importing nations like China and India. Additionally, diplomatic engagements or negotiations between the U.S. and Iran could influence market movements, as could any announcements from international bodies like the IMF regarding shipping data. Observers should also monitor any shifts in Iranian naval deployments in the region.

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Trump's hormuz blockade announcement bearish

40% FLAT