Iran, US clash on Hormuz status as Polymarket prices 58.5% No by July 31
Strait of Hormuz Closure Claims Shake Polymarket: “No” Leads After Iran–U.S. Contradictions
Iranian officials said the Strait of Hormuz had been closed after renewed Israel-Hezbollah fighting, while U.S. Vice President JD Vance said Washington was not seeing evidence of a shutdown. The conflicting claims fed into Polymarket pricing on whether Strait of Hormuz traffic returns to normal by July 31, where traders currently lean toward a "No" outcome.
Key Takeaways
- Polymarket prices a 58.5% chance that Strait of Hormuz traffic will not return to normal by July 31, versus 41.5% for Yes.
- Odds ticked lower on the Yes side after dueling statements from Iran and the U.S. over whether the strait is actually closed.
- The contract is scheduled to resolve on 2026-07-31, with Yes down 3.5 percentage points over both the past 24 hours and 7 days.
Iran’s joint military command said the Strait of Hormuz had been closed, attributing the move to Israel’s continued strikes against Lebanon. U.S. Vice President JD Vance denied that a shutdown was in place, saying the United States was not seeing evidence that Iran was still closing the waterway and that his understanding from discussions with U.S. envoys was that the strait was open. Vance also said he was skeptical of reporting that cited Iranian security officials describing the closure as linked to the U.S. failure to end fighting in Lebanon under a memorandum of understanding signed earlier in the week by President Donald Trump and Iran. The report said Israel and Hezbollah had agreed to a ceasefire on Friday, but exchanges of strikes resumed on Saturday as tensions rose. U.S. and Iranian diplomats were slated to meet in Switzerland on Sunday for technical-level talks mediated by Pakistan and Qatar.
Polymarket Odds and Volume: “Traffic Not Normal by July 31” at 58.5% with $7.28M Matched, Yes Down 3.5 Points
On Polymarket, the binary contract "Strait of Hormuz traffic returns to normal by July 31?" was last priced at Yes 41.5% and No 58.5%, with No the leading outcome. The Yes price is down 0.5 percentage points from 42.0% previously, and the market has matched about $7,275,819 in volume. Over the past 24 hours, Yes is down 3.5 points, mirroring the 7-day move, signaling a sustained tilt toward the view that normalization may not happen by the July 31 resolution date.
Traders will track whether Polymarket pricing holds below the recent 5-point average of 51.0% for Yes and whether liquidity follows any sharp repricing ahead of the 2026-07-31 resolution.
Beyond the Strait of Hormuz: Other High-Volume Geopolitical and Macro Contracts Polymarket Traders Are Watching
Beyond the headline contract, Polymarket traders are also concentrating liquidity in adjacent timelines and broader Iran-linked risk gauges. “93.5% No” in “Strait of Hormuz traffic returns to normal by end of June?” leads on $30,788,208 in volume, while “76.5% No” tops “Strait of Hormuz traffic returns to normal by July 15?” on $1,744,030. Elsewhere, positioning is stark in “Iran closes its airspace by...?” at 100.0% for “July 15” with $7,996,092 traded, and “Will the Iranian regime fall by June 30?” at 99.65% No on $62,752,895, as participants track spillovers across security, policy and regime-stability scenarios.
Odds Trend
| Window | Change (pp) |
|---|---|
| 24h | -3.5 |
| 7d | -3.5 |
By the Numbers
- Platform: Polymarket
- Market: Strait of Hormuz traffic returns to normal by July 31?
- Resolution window: Jul 31, 2026 (UTC)
- Status: Active (open for trading)
- Leading implied prob.: 41.5%
- Volume: ~$7,275,819
- Top outcomes: Yes: Yes 41.5% / No 58.5%; No: Yes 41.5% / No 58.5%
Related Markets
- Strait of Hormuz traffic returns to normal by end of June? — No 94%
- Strait of Hormuz traffic returns to normal by July 15? — No 76%
- Iran closes its airspace by...? — July 15 100%
- Will the Iranian regime fall by June 30? — No 100%
- Iran agrees to end enrichment of uranium by June 30? — No 96%