Strait of Hormuz traffic returns to normal by September 30?

Platform comparison

Market context

Commercial traffic through the Strait of Hormuz is still the key real-world test behind this contract: IMF Portwatch needs to publish a seven-day average of at least 60 arrivals, which is roughly the normal scale implied by pre-crisis flows, not just occasional tanker passages. Recent reporting suggests the lane has been operating well below that mark, with Reuters saying traffic was at less than 10% of typical volumes in April and CNBC reporting another slowdown in June after Iran again claimed the waterway was closed, even as some ships continued to move through it.[6][1]

That historical pattern matters because comparable episodes have shown that getting back to “normal” is slower than simply reopening the route on paper. Bloomberg noted in mid-June that Kalshi was pricing a 51% chance of normal traffic before 1 August and 68% before 1 September, which is materially higher than the current 22% YES on this contract, suggesting prediction-market traders see this September-end threshold as a tougher bar than near-term reopening headlines imply.[2] The gap also reflects the difference between sporadic transits and a sustained seven-day average above 60, which is the only figure that matters here.[2][3]

For traders, the main catalysts are any formal de-escalation between Iran, the US and regional allies, plus shipping-insurance and carrier guidance, since route decisions usually depend on both security and coverage. Watch for Portwatch updates after major diplomatic announcements or maritime advisories, because the market settles on published data rather than headline claims; recent reporting has already shown that even when Iran says the strait is open, commercial flows can remain far below normal for weeks.[1][3][6]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

This page is a comparison snapshot: one live quote, four reference venues with their key attributes, and a single execution path — every trade button routes to Best Prediction Markets, which mirrors the Polymarket order book directly.

Resolution & payout

At resolution the UMA oracle takes over: a proposer posts the outcome with a bond, any token holder can dispute within two hours. Without dispute the result is accepted and the smart contract distributes USDC instantly.

On Kalshi (CFTC-regulated) resolution runs through their in-house clearing engine in USD. Betfair Exchange settles after match end in the account's local currency. Manifold pays no cash — only its in-platform "mana" currency.

FAQ

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Best Prediction Markets. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

What's the difference between YES and NO shares?

A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.

Do I need to KYC for this market?

On Polymarket directly, no — it's wallet-based. Intermediary brokers like Best Prediction Markets trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.