Strait of Hormuz traffic returns to normal by end of June?

Platform comparison

Market context

Commercial shipping through the Strait of Hormuz remains effectively suspended following a brief, failed reopening on 21 April 2026, with Iran warning vessels to stay within its territorial waters and data showing traffic at less than 10% of normal volumes[1][2]. The strait is currently closed, and the US has declared a naval blockade against Iran due to minimal progress in peace negotiations, despite a ceasefire agreement signed on 17 June that mandates immediate navigation restarts[3][4].

Historical precedents suggest that even with formal agreements, traffic recovery is often delayed by geopolitical friction; the 2026 closure mirrors earlier standstills where Iran’s imposition of tolls and alleged mine-laying kept transit near zero for weeks[3][5]. Current crowd-implied probability of 14% YES aligns with analyst consensus that normal levels—defined as a 7-day moving average of 60+ arrivals—are unlikely before June 30, given that only 25 vessels passed on 25 June, the highest since April but still far below the 120 daily average[4][8].

Traders should monitor the US lifting of its naval blockade by 19 July and Iran’s adherence to the memorandum of understanding, which requires “best efforts” to restore pre-war traffic levels within 60 days[4]. Recent reports indicate traffic has climbed to its highest levels since the war’s early days as more countries secure safe-passage agreements, yet normal commercial flows remain uncertain[5]. The divergence between sportsbook lines (often pricing higher odds) and prediction-market implied probability reflects skepticism about Iran’s willingness to fully relinquish control or remove tolls beyond the 60-day waiver[4][7].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically we separate two layers: the live probability (Polymarket mid-price) and the platform attributes (fee, KYC, settlement currency, payment rails). The odds column is filled only where we have clean data — that avoids the made-up numbers that get a network demoted when search engines cross-check against the source venue.

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?

On PolyGram, which mirrors the Polymarket order book at 0% fees. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

Is this market available outside the US?

PolyGram is available in most jurisdictions where Polymarket isn't directly accessible. Polymarket itself is geo-blocked in the US/UK/EU. Always check local regulations.

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?

Not under $1,500 of lifetime trading volume. Above that threshold, PolyGram triggers a quick verification flow that finishes in minutes.