Rongchai Wang
Jun 17, 2026 08:05
Brent crude fell 5% Tuesday to $78.96 as U.S.-Iran peace hopes grew, though shipping executives cautioned Hormuz traffic may not normalize quickly.
Strait of Hormuz Shipping Bet Slips as U.S.–Iran Deal Optimism Hits Oil Prices
Oil prices slid on Tuesday as expectations for a U.S.-Iran peace agreement strengthened, with shipping executives still warning that reopening the Strait of Hormuz may not translate into an immediate return to normal transit. On Polymarket, the contract “Strait of Hormuz traffic returns to normal by July 31?” was last priced at 56.5% for Yes, down from 57.5%.
Key Takeaways
- Polymarket prices a 56.5% chance that Strait of Hormuz traffic returns to normal by July 31 (Yes 56.5%, No 43.5%).
- The market edged lower as peace-deal optimism competed with tanker and container executives’ caution about how quickly real-world shipping resumes through Hormuz.
- The contract resolves on July 31, 2026; odds are down 3.5 percentage points over the past 24 hours and 7 days.
Oil traded lower on Tuesday as hopes for a lasting Middle East peace agreement strengthened, while shipping executives said a reopening of the Strait of Hormuz may still take time to translate into normal traffic. Brent crude futures fell 5% to settle at $78.96 a barrel, dropping below $80 for the first time since March, while U.S. West Texas Intermediate lost 5.8% to close at $76.05. The report said the United States would allow Iran to begin selling crude immediately under the terms of a deal to end the conflict, with sanctions relief taking effect after the agreement is signed. A senior U.S. official said Iran could only access the benefits if it met commitments that included not pursuing a nuclear weapon, neutralizing enriched uranium, and not interfering with Strait of Hormuz traffic. While President Donald Trump said the peace framework had been signed and that the strait would “completely reopen” on Friday without Iranian tolls, shipping leaders said some operators could still wait weeks before resuming transit.
Polymarket Odds: “Hormuz Traffic Normal by July 31?” at 56.5% Yes on $6.01M Volume
On Polymarket, Yes was last at 56.5% and No at 43.5%, with the contract down 1.0 percentage point from 57.5% previously. Total matched volume stood at $6,014,695, suggesting heavy participation despite only a small move in the latest reading. The 24-hour and 7-day changes were both -3.5 points, and the average of the last five readings was 62.1%, indicating the market has cooled from more optimistic levels even as Yes remains the leader.
Traders will focus on whether the reopening translates into sustained, routine transits through the Strait of Hormuz ahead of the July 31, 2026 resolution date.
Beyond Hormuz: Other High-Volume Geopolitical and Macro Polymarket Contracts Traders Are Watching
Beyond shipping lanes, Polymarket traders are also clustering into deal-timing and diplomacy contracts tied to the broader U.S.-Iran file, led by “US x Iran permanent peace deal by…?” with December 31 at 99.95% on $381.8 million in matched volume. The market “US and Iran sign an agreement by…?” similarly prices June 22 at 100.0% on $11.8 million, while “US-Iran deal text released by…?” points to June 30 at 98.25% on $586,916. Regionally, “Israel x Iran permanent peace deal by June 30, 2026?” has No leading at 85.4% on $6.58 million, underscoring how traders are differentiating between bilateral progress and a wider détente.
Odds Trend
| Window | Change (pp) |
|---|---|
| 24h | -3.5 |
| 7d | -3.5 |
By the Numbers
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Sources
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