Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Legal UK) Pick polygram.ink (preferred broker) |
22% | 78% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Trade this market → |
Polymarket (direct) polymarket.com |
22% | 78% | 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 underlying event is whether commercial ship traffic through the Strait of Hormuz gets back to a 7-day average of at least 60 transit calls before 30 September 2026, using IMF Portwatch’s “Arrivals of Ships” series. That threshold matters because the strait had been running far below normal during the 2026 disruption: Reuters reported traffic at less than 10% of typical volumes in April, while other trackers and market reports showed daily transits collapsing from a pre-crisis baseline of roughly 60-plus ships to single digits at the worst point.[2][3][7]
The present 22% yes price sits below the kind of recovery path seen after the June ceasefire and reopening announcements, but it is not a pure binary on diplomacy because insurers, naval rules, mine clearance and enforcement all affect whether movements stay consistently high enough to lift a 7-day average. Reuters and later reporting showed vessels trickling back after the U.S.–Iran deal, yet traffic remained well below pre-war levels and still vulnerable to renewed restrictions or tolling rules, which is why traders have treated “normal” as a harder bar than simply “open”.[1][9][10][12]
For accessibility and compliance, the venue’s legal wrappers matter as much as the headline. Under German GlüStV-style framing, a market like this is typically treated as a gambling-style product unless local legality, age-gating and territorial restrictions are handled explicitly; the US CFTC can also assert reach where a market is offered to US persons or otherwise falls within its jurisdictional tests. In practical terms, “no-KYC up to $1,500” usually means a user can open and trade small sizes with only light identity checks, but larger deposits, withdrawals or higher risk controls may trigger verification, so the market is accessible for small speculative exposure rather than anonymous high-volume use.
Methodology
This overview of Strait of Hormuz traffic returns to normal by September 30? 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.
FAQ
- 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 Legal UK has a different geo footprint.
- How are winnings taxed?
- Tax treatment varies by jurisdiction. In most countries, prediction market gains are treated as ordinary income or capital gains. We cannot provide tax advice — consult a tax professional for your specific situation.
- Can I trade anonymously?
- Pseudonymously, yes — up to the KYC threshold. Polymarket Legal UK stores an email address and wallet addresses rather than a legal name. Over $1,500 lifetime volume triggers KYC, after which identity is no longer anonymous.
- Are prediction markets gambling?
- Legally unclear in most jurisdictions. Some interpretations classify them as wagering (gambling regulation applies), others as derivatives (financial regulation applies). There's no global precedent specifically for on-chain prediction markets.
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Polymarket Legal UK would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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