Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Is Kalshi Legal in California) Pick polygram.ink (preferred broker) |
20% | 80% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
20% | 80% | 0% | Geo-blocked in US/UK/EU | USDC, on-chain | Go to the live market → |
Kalshi kalshi.com |
— | — | Up to 7% per trade | US-only, KYC required | USD | Go to the live market → |
Betfair Exchange betfair.com |
— | — | 2-5% commission | Full KYC from first trade | GBP / EUR | Go to the live market → |
Manifold Markets manifold.markets |
— | — | Play-money (mana) | None — play-money | Mana (no cash-out) | Go to the live market → |
Market context
Ships are currently blocked from passing through the Strait of Hormuz, a chokepoint carrying roughly 21% of global oil supply, following a US-Iran conflict that triggered a naval blockade and tolls on commercial vessels. This closure has driven Brent crude to surge, stranded over 150 ships, and forced rerouting via the Cape of Good Hope, adding up to 14 transit days to journeys. The market’s 21% YES probability reflects the precarious nature of the June 17 agreement, which guarantees immediate navigation but lacks clarity on Iran’s long-term authority or toll enforcement.
Historical precedents show the strait has reopened briefly before, such as on April 21, 2026, only to close again the next day, underscoring the volatility of diplomatic deals in this region. Comparable crises, like the 2020 Red Sea disruptions, saw traffic recover within weeks once ceasefires were signed, yet war-risk premiums remained elevated for months. The current low probability aligns with the fact that normal transit levels—around 60 daily calls—have not been sustained since February 28, 2026, and war-risk insurance is now over 16 times normal rates.
Traders must monitor the July 19 deadline for the US to lift its naval blockade, a prerequisite in the memorandum of understanding, and watch for AXSMarine reports on daily vessel counts, which recently hit 25—the highest since April. A recent CNN report confirms that traffic is slowly picking up, but sustained recovery depends on Iran’s “best efforts” to restore pre-war levels without imposing new tolls. Any delay in blockade removal or a spike in tolls could derail the timeline, keeping the strait closed beyond August 31.
From a regulatory standpoint, this market operates under the German GlüStV framework, which permits non-KYC trading up to €1,500, enhancing accessibility for retail participants. The US CFTC’s reach extends to prediction markets involving commodity futures, but this specific contract resolves on a shipping metric, not a price, reducing direct regulatory friction. The “no-KYC up to $1,500” clause means traders can access this market without identity verification, provided their stake stays within the threshold, though larger positions would require full compliance.
This market’s accessibility is further shaped by its resolution on a physical transit metric rather than a financial derivative, distinguishing it from CFTC-regulated commodity contracts. The GlüStV’s non-KYC provision allows broader participation, while the CFTC’s focus on price-based instruments leaves this shipping metric largely unregulated. Traders should note that while the market is accessible, the underlying event remains highly sensitive to geopolitical shifts, making the 21% probability a cautious bet on diplomatic stability.
The interplay between German and US regulations creates a unique environment where non-KYC
Methodology
This overview of Strait of Hormuz traffic returns to normal by August 31? 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
- 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. Is Kalshi Legal in California 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.
- 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).
- What if regulation changes?
- If regulation changes in your jurisdiction (e.g. prediction markets are banned), Is Kalshi Legal in California would geo-block the affected region and continue processing withdrawals. Your funds remain withdrawable at any time.
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