Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Klarna UK) Pick polygram.ink (preferred broker) |
22% | 78% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | Go to the live market → |
Polymarket (direct) polymarket.com |
22% | 78% | 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
The Strait of Hormuz is still being watched as a shipping bottleneck rather than a normal Gulf corridor, and this market resolves only if IMF Portwatch’s 7-day average of ship arrivals gets back to at least 60. That threshold is close to pre-crisis traffic levels, but recent reporting shows the recovery has been uneven: traffic fell to near zero during the worst of the disruption, then improved after the June de-escalation, with Kpler saying more than 20 oil tankers had transited after the reopening deal. Even so, other coverage said vessel movement remained far below prewar levels and that the return to full flow would likely take time because insurers, operators, and ports were still adjusting.[4][5][6][7]
The current 22% YES price is consistent with a market that is open enough to recover, but still constrained by friction: fees, war-risk insurance, and rerouting costs all make the Strait less attractive than pre-conflict routes. Comparable choke-point episodes have shown that once a strait is damaged by security risk, traffic does not snap back immediately even when fighting eases, because shipowners wait for verified safety and predictable schedules.[8][9] That is where payment conditions matter: a market funded by easy deposits and low withdrawal friction can build deeper order books, but if participants face higher on-ramp costs or slower exits, liquidity often stays thinner and the price can move more sharply on headlines.
Traders should watch for any new U.S.-Iran shipping arrangement, changes to port-fee policy, mine-clearing updates, and evidence that carriers are restoring scheduled sailings rather than just making one-off passages. Recent reports said Iran had allowed vessels to pass toll-free for 60 days, while wider commentary still warned that the ceasefire window did not guarantee a quick return to normal volumes.[6][7] If Portwatch’s published average keeps rising through the summer and insurers stop treating the route as exceptional, the odds of a September 30 “Yes” would improve materially; if transit fees, blockades, or renewed military incidents reappear, the 60-call average remains out of reach.[1][2][3]
Methodology
This page compares Strait of Hormuz traffic returns to normal by September 30? with a focus on payment rails and deposit friction. Polymarket accepts USDC on Polygon only; Kalshi only ACH/Plaid (US only); Betfair card/SEPA in EU/UK; Manifold no deposit. Polymarket Klarna UK additionally offers Klarna and SOFORT as fiat on-ramps to USDC. Live odds reflect the Polymarket order book.
Resolution & payout
Settlement path determines payout latency. Polymarket settles on-chain (USDC, minutes). Broker frontends like Polymarket Klarna UK add Klarna/SOFORT as fiat withdrawal options with T+1 processing. Kalshi: USD via ACH (T+1 to T+3). Betfair: local currency via card/SEPA (T+1 to T+5).
FAQ
- How does Klarna deposit work on Polymarket Klarna UK?
- You enter the deposit amount in EUR/GBP, choose Klarna as the method, run through Klarna's standard authentication (Pay Later or Direct Bank Transfer), and Polymarket Klarna UK converts internally to USDC for the Polymarket order book. Processing: typically under 30 minutes.
- What does SOFORT cost as a deposit method?
- Polymarket Klarna UK charges no fees for SOFORT. The only cost is the internal FX spread (typically <1%) on EUR→USDC conversion. SOFORT itself has no end-user fees — the platform absorbs acquirer costs.
- How fast is SEPA deposit?
- SEPA Instant: under 10 seconds. SEPA Standard: 1-2 business days. Both accepted fee-free; the internal USDC conversion runs automatically once EUR lands in the platform account.
- What's the minimum deposit?
- 10 EUR / 10 USD equivalent. No upper limit, but deposits over $1,500 lifetime volume trigger a quick KYC flow (typically 5-10 minutes).
- How do withdrawals work?
- Identical methods in reverse. SEPA withdrawal: T+1 (standard) or under 10 seconds (SEPA Instant). Klarna withdrawals process via bank-account refund. USDC withdrawal to external wallet: Polygon gas cost (typically $0.01).
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