Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Tax UK) Pick polygram.ink (preferred broker) |
9% | 91% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
9% | 91% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Trade this market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Trade this market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Trade this market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Trade this market → |
Market context
The Strait of Hormuz remains one of the world's most strategically sensitive maritime chokepoints, with roughly one-fifth of global oil passing through its waters daily. A return to "normal" traffic—defined here as a 7-day moving average of 60 or more daily transit calls—would signal a sustained de-escalation of regional tensions that have disrupted shipping patterns since late 2024. The IMF Portwatch metric captures all commercial vessel types, making it a broad indicator of confidence in safe passage rather than a crude-specific measure.
Historical precedent suggests that Hormuz transit disruptions typically persist for months once triggered by geopolitical events. The 2019 tanker attacks saw recovery take over a year; the 2022 incident involving the Houthis and the Ever Given blockade demonstrated how single flashpoints can reshape routing behaviour across quarters. Current crowd probability of 8% reflects scepticism that conditions will normalise within the 20-month window, particularly given ongoing regional proxy activity and the absence of formal de-escalation frameworks between key actors.
Traders should monitor announcements from the International Maritime Organization regarding corridor safety assessments, statements from the US Fifth Fleet on escort operations, and shipping insurance premium movements—all leading indicators of perceived risk. Recent reports from Lloyd's List and Hellenic Shipping News track weekly transit volumes; any sustained climb above the 55-call threshold would signal momentum toward resolution. Additionally, any formal agreement between Iran and Gulf Cooperation Council states, or withdrawal of Houthi targeting claims, would constitute material catalysts. The settlement window extends to September 2026, giving markets time to price in either renewed confidence or entrenched caution.
Methodology
This overview of Strait of Hormuz traffic returns to normal by September 15? reviews the four comparable platforms from a regulatory perspective: which is accessible in your jurisdiction, where KYC kicks in, how the platform is classified by your country of residence. Live probability is the Polymarket mid; comparison columns show regulatory status, KYC thresholds and settlement options for each platform.
Resolution & payout
On Polymarket, resolution runs on-chain via UMA Optimistic Oracle. USDC payout is instant and automatic, with no KYC. Tax treatment depends on your jurisdiction — in the US, gains are usually ordinary income; in the UK, often capital gains. Consult a tax professional for your situation.
UK Frequently Asked Questions
- Is Polymarket legal in my country?
- Polymarket is geo-blocked in the US/UK/EU. Actual usage via the Polymarket interface is not possible there. The legal status itself varies — many countries treat prediction markets as a gray area. Polymarket Tax UK has a different geo footprint.
- Is Polymarket regulated by the UKGC?
- No. Polymarket is not licensed by the UK Gambling Commission (UKGC). It is a decentralised prediction market operated under US regulation. UK traders can use it but do not benefit from UKGC dispute resolution or player protection requirements.
- What are the HMRC tax rules on Polymarket profits for UK traders?
- Polymarket profits are treated as cryptocurrency disposal events by HMRC. Each USDC settlement is a taxable event subject to Capital Gains Tax (CGT). For 2026/27, the CGT rate is 18% (basic rate) or 24% (higher rate). The annual CGT exemption is £3,000. Report via HMRC Self Assessment if your total crypto gains exceed £3,000 or proceeds exceed £50,000.
- Does Polymarket KYC apply to UK users?
- Yes. Polymarket requires KYC (Know Your Customer) verification for all users, including UK residents. You must provide a government-issued photo ID and a selfie. The process typically takes 5–10 minutes via their ID verification provider.
- What is the legal difference between Polymarket and Betfair Exchange for UK traders?
- Betfair Exchange is UKGC-licensed, meaning UK consumer protections apply and winnings are typically tax-free. Polymarket is not UKGC-licensed — it operates under decentralised blockchain rules. Profits from Polymarket are subject to HMRC CGT as crypto disposals. Choose based on your regulatory preference and tax situation.
Trade Strait of Hormuz traffic returns to normal by Septem… on Polymarket Tax UK
Live order book, 0% fees, USDC settlement in seconds.
Open live market →