The U.S. Navy has seized the Iranian-flagged ship Touska in the Arabian Sea, a vessel already subject to U.S. sanctions.

This action marks the first direct enforcement of the U.S. blockade under the Trump administration, intensifying tensions and impacting the fragile ceasefire between the U.S., Israel, and Iran. Traders are now pricing in prolonged disruptions to traffic through the Strait of Hormuz, with prediction markets showing a 0% likelihood of normalization by the end of May and June.

This incident represents a significant escalation, altering the risk assessment for commercial shipping. Prediction markets reflect zero probability for resumed normal traffic by June without a major diplomatic breakthrough.

While trading volumes remain low, indicating thin liquidity, market signals to monitor include statements from CENTCOM, actions by Iranian Foreign Minister Abbas Araghchi, and any shifts in commercial shipping patterns.