• Market expectations for a U.S.-Iran deal by end-June plummet from over 75% to 27%.
  • Probability of Strait of Hormuz reopening stands at just 22%.
  • Kalshi traders see only 52% chance of normal shipping before October 2026.

Diplomacy Stalls as Tensions Rise

Peace hopes between the United States and Iran have collapsed, with market sentiment swinging sharply against a near-term deal. According to Kalshi, a prediction market platform, the probability of a U.S.-Iran agreement by the end of June has fallen from over 75% to just 27%. The shift reflects stalled nuclear talks and renewed clashes, which have eroded confidence in diplomatic progress.

Strait of Hormuz Remains High-Risk

The Strait of Hormuz, a critical chokepoint for global oil and LNG shipments, remains a flashpoint. Kalshi traders currently assign a 22% chance that normal traffic will resume through the strait, while the probability of shipping returning to normal before October 2026 is just 52%. The persistent uncertainty is weighing on energy markets, with analysts warning that even a partial reopening would take weeks or months to translate into stable flows.

“Without a credible diplomatic breakthrough, the risk of prolonged disruption remains elevated,” said one energy trader, speaking on condition of anonymity. Attempts to reach both U.S. and Iranian officials for comment were unsuccessful.

Market Implications

Oil prices have been sensitive to headlines around Hormuz, with volatility persisting as traders price in continued geopolitical risk. The collapse in deal expectations suggests that supply disruptions could tighten global markets further, especially if alternative routes face congestion or higher costs. Industry experts note that insurance premiums for tanker operators in the region remain elevated, adding to the cost of rerouting shipments.

*Correction: A previous version of this article misstated the probability of a deal by end-June. The correct figure is 27%, not 25%.

Looking Ahead

Short-term prospects for de-escalation appear dim, with analysts focused on whether any new diplomatic initiatives emerge. “The trajectory is uncertain,” said a geopoltiical risk analyst. “Markets will remain on edge until there is clearer signaling from both sides.” Longer-term, normalization of Hormuz traffic hinges on credible engagement and verifiable nonproliferation steps, but the path forward remains fraught.