Will 2026 ships transit the Strait of Hormuz on any day by June 30?

Platform comparison

Active sub-markets

Market context

Iran has largely blocked shipping traffic through the Strait of Hormuz since late February 2026, following US and Israeli air strikes that assassinated its supreme leader. The choke point, critical for global energy trade, remains closed to commercial vessels, with thousands of ships stranded west of the strait and outbound crude shipments collapsing in early March. This 15% implied probability for any transit by June 30 reflects the severity of the current blockade, where daily transits sit at a fraction of pre-war levels and the strait is officially shut despite a brief, unsuccessful reopening.

Traders should monitor announcements regarding the suspension of commercial shipping, insurance premium spikes, and throughput data from live trackers, as these signal whether the blockade persists or eases. Recent reporting confirms the strait is closed, with no finalized daily transit calls meeting the market’s threshold since the crisis began. Key dependencies include UN shipping agency calls for de-escalation and any shifts in US strike patterns, which could alter the blockade’s duration.

Platforms diverge sharply here: Polymarket offers decimal odds without KYC, while Kalshi and Betfair require identity verification and quote implied probabilities, affecting how traders interpret the 15% figure. Fee structures also vary, with Smarkets charging lower commissions but demanding stricter KYC, potentially limiting access for some participants. These differences shape how each book frames the risk of a transit, with decimal odds on Polymarket offering clearer granularity than implied probabilities on regulated exchanges.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We read Will 2026 ships transit the Strait of Hormuz on any day by June 30? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live quote comes directly from the Polygon order book; the other three are listed with their platform attributes — fees, KYC, settlement currency, payment options — because a 1:1 contract comparison without API access would be guesswork.

Resolution & payout

Polymarket settles via UMA Optimistic Oracle on Polygon. A proposer posts the outcome with a bond, the two-hour window runs, then the smart contract pays USDC.

Kalshi settles USD through the CFTC-regulated clearinghouse — the cleanest variant, with heavier KYC. Betfair Exchange settles in account currency (GBP/EUR), net of 2-5% commission. Smarkets follows the same model as Betfair with a lower default 2% commission.

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.

How fast are USDC deposits?

Polygon credits deposits after 12 confirmations — usually under 30 seconds. Withdrawals follow the same path and land back in your wallet within minutes.

How reliable are the quoted odds?

The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.