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Iran charges Hormuz fees by 2026?

Live odds for "Iran charges Hormuz fees by 2026?" pulled from the Polygon order book, alongside the platform attributes of every venue that runs this contract.

October 31 63% August 31 49% July 31 6% July 15 2% Volume: $308K Liquidity: $349K Closes: 31 Aug 2026
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Iran charges Hormuz fees by 2026?

Platform comparison

PlatformYES oddsNO oddsFeeKYCSettlement
Polymarket (via PolyGram) Pick
polygram.ink (preferred broker)
63% 37% 0% (USDC on-chain) No-KYC up to $1,500 USDC, auto via UMA oracle View on Polymarket →
Polymarket (direct)
polymarket.com
63% 37% 0% Geo-blocked in US/UK/EU USDC, on-chain View on Polymarket →
Kalshi
kalshi.com
Up to 7% per trade US-only, KYC required USD View on Polymarket →
Betfair Exchange
betfair.com
2-5% commission Full KYC from first trade GBP / EUR View on Polymarket →
Manifold Markets
manifold.markets
Play-money (mana) None — play-money Mana (no cash-out) View on Polymarket →

Outcome probabilities

Current market-implied probability for each outcome, from the live order book.

OutcomeProbability
October 3163%
August 3149%
July 316%
July 152%

Market context

Iran has not officially announced a mandatory fee for commercial vessels passing the Strait of Hormuz, despite recent diplomatic friction where Tehran suggested it could charge maritime service fees rather than tolls under a peace deal with the US[1]. The current crowd-implied probability of 2% for such a charge aligns with the stark divergence between prediction-market odds and analyst consensus, which views any formal tolling as a dangerous precedent that would violate global trade norms and likely trigger immediate sanctions[8]. While some sportsbook lines on related geopolitical tensions remain volatile, the specific contract for Hormuz fees remains deeply discounted, reflecting the high barrier to a general policy announcement that applies to all commercial vessels.

Historically, Iran has relied on blockades and navigational threats rather than formal fees, as seen during the 2026 Iran war when the Revolutionary Guards issued transmissions stating passage was "not allowed" before reopening the strait under a ceasefire[2]. Although reports suggest isolated payments of $1–$2 million were made in yuan or cryptocurrency for safe passage by Chinese and Greek owners, these were tiered, non-general demands rather than an announced policy[3]. The legal framework of the UN Convention on the Law of the Seas prohibits tolling international straits, and while Iran has not ratified UNCLOS, its ally Oman has publicly rejected Iranian toll proposals, further reducing the likelihood of a unified, official fee structure[3].

Traders should monitor official announcements from Iran’s foreign ministry regarding the implementation of the peace deal and any subsequent shifts in VHF transmission protocols from the Revolutionary Guards[1]. A key catalyst would be a formal decree specifying fees for a defined subcategory of vessels, such as those flagged to US allies, which would meet the market’s qualifying criteria[1]. Recent statements by Maersk’s CEO warning that any agreement allowing fees sets a "dangerous precedent" suggest significant corporate resistance that could delay or prevent such a policy from being enacted[8]. Watch for updates on the ceasefire terms and whether Iran proceeds with its 10-point plan to formalise tolls, though Oman’s rejection of this proposal remains a critical dependency[3].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Iran charges Hormuz fees by 2026? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

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

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.
What does Polymarket cost to trade?
Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
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.
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