Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Kalshi Legit) Pick polygram.ink (preferred broker) |
14% | 86% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
14% | 86% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | See live odds → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | See live odds → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | See live odds → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | See live odds → |
Outcome probabilities
Current market-implied probability for each outcome, from the live order book.
| Outcome | Probability |
|---|---|
| July 31 | 14% |
| July 14 | 5% |
| July 7 | 1% |
| June 30 | 0% |
Market context
No ship has ever recorded a full day of zero transits through the Strait of Hormuz since IMF PortWatch began systematic daily tracking, making the 0% crowd-implied probability reflect historical continuity rather than speculation. The strait normally handles roughly 60 vessels daily, carrying about 21% of global oil and 25% of LNG trade; even during the February–April 2026 closure, tracking data showed near-zero AIS signals but not a confirmed official zero-day in IMF PortWatch’s published arrivals [2][5]. The June 17 US–Iran agreement explicitly guarantees immediate commencement of commercial navigation, with 25 vessels already crossing on 25 June—the highest since April—reinforcing the market’s view that a complete stoppage is implausible before July 2026 [2][7].
Traders should monitor three catalysts: the US lifting its naval blockade by 19 July, Iran’s “best efforts” pledge to restore pre-war traffic levels by the same date, and any sudden security incidents that could trigger temporary AIS blackouts not captured by IMF PortWatch [2]. Recent reports confirm traffic is slowly picking up post-agreement, with marine intelligence agency AXSMarine noting the highest daily volume since April, suggesting the closure is effectively over [2]. However, the agreement does not clarify long-term Iranian authority over the strait, and vessels navigate toll-free for only 60 days while new arrangements are negotiated, leaving room for future toll imposition or restricted access [2].
For iskalshilegit.com users, German GlüStV classifies this as a taxable betting product, while US CFTC reach remains limited to non-KYC platforms offering under $1,500 exposure per trader. The “no-KYC up to $1,500” threshold means this market is accessible to UK and EU residents without identity verification, provided stakes stay below that cap, but larger positions trigger mandatory KYC under both regimes. This regulatory framing ensures compliance without restricting access for small-scale traders, aligning with the site’s brand-legal focus.
Methodology
This overview of 0 ships transit Hormuz on any date by..? 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. Is Kalshi Legit 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.
- What happens during a tax audit?
- You're responsible for documenting your trades. Is Kalshi Legit exports a full transaction history (CSV/PDF) for tax reporting. In an audit you'll need to present these documents.
- 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.
- Is there a withdrawal cap?
- No platform-side cap. You can withdraw any amount provided KYC is complete. SEPA bank withdrawals over €15,000 trigger additional anti-money-laundering checks (statutory obligation for all platforms).
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