Former President Donald Trump announced the reinstatement of the Iranian blockade, a move that appears to disrupt the recent June 2026 Memorandum of Understanding (MoU) between the United States and Iran. This agreement had initially led to the lifting of the U.S. naval blockade on Iranian ports and the reopening of the Strait of Hormuz. Trump’s announcement suggests potential violations by Iran, such as continued mining of the Strait or the resumption of nuclear activities, prompting a return to stringent economic measures. The market reaction indicates a significant increase in the perceived likelihood of the blockade being reimposed, affecting global oil trade and geopolitical stability.
Key Takeaways
- Market pricing suggests a strong increase in the likelihood of a U.S. blockade on Iran being reimposed, with odds for December 31 rising to 97% YES.
- The announcement appears consistent with scenarios where the U.S. believes Iran has violated recent agreements, potentially by resuming hazardous activities in the Strait of Hormuz.
- Market activity reflects heightened concern over global oil trade disruption, as the blockade would impact a significant portion of the world’s oil supply.
What to Watch
Observers will be watching for official statements from the U.S. Central Command (Centcom) regarding the implementation details of the blockade. Any confirmation of Iranian violations or additional U.S. military actions could further support the YES scenario. Conversely, a joint statement from the U.S. and Iran reaffirming the MoU or indicating diplomatic progress could suggest a shift towards a NO outcome. Additionally, monitoring the status of the Strait of Hormuz for any changes in commercial traffic will be critical in assessing the broader impact of this development.
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Disclosure: This article was edited by Estefano Gomez. For more information on how we create and review content, see our Editorial Policy.

17 hours ago
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