Platform comparison
| Platform | YES odds | NO odds | Fee | KYC | Settlement | |
|---|---|---|---|---|---|---|
Polymarket (via Polymarket Qué Es) Pick polygram.ink (preferred broker) |
9% | 91% | 0% (USDC on-chain) | No-KYC up to $1,500 | USDC, auto via UMA oracle | See live odds → |
Polymarket (direct) polymarket.com |
9% | 91% | 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 → |
Market context
The Strait of Hormuz, through which roughly one-fifth of global oil transits daily, has experienced significant disruption since late 2023 following Houthi attacks on commercial shipping. Current daily transit calls average well below the 60-vessel threshold required for resolution; Polymarket prices YES at 8 cents per USDC token on Polygon, reflecting widespread trader scepticism that normalcy returns within 18 months. The resolution hinges on IMF Portwatch data—a specific, auditable source—rather than geopolitical assessments, which anchors the contract's mechanics to observable shipping metrics rather than interpretive claims.
Historical precedent offers limited comfort to bulls. The 2019 tanker attacks near Fujairah disrupted traffic temporarily, but recovery took weeks rather than months, and that incident lacked the sustained campaign element present today. The 2022 Russia-Ukraine blockade of Ukrainian grain exports lasted eight months before corridors reopened; the Hormuz situation involves non-state actors with demonstrated persistence and evolving tactics, making timeline predictions hazardous. Traders noting the 8% price should consider whether a 60-call threshold represents genuine normalcy or merely partial recovery.
Near-term catalysts centre on Houthi operational capacity and international naval responses. The US Navy's Fifth Fleet presence has intensified, though interceptions remain incomplete; any major escalation or, conversely, a negotiated ceasefire could shift probabilities sharply. Shipping insurers and rerouting decisions—currently favouring longer routes around Africa—respond to perceived risk rather than actual attacks, meaning sentiment shifts can precede physical changes. IMF Portwatch publishes weekly, so traders should monitor releases closely for trending signals rather than waiting for a single threshold-crossing event.
Methodology
This page reviews Pronóstico: Strait of Hormuz traffic returns to normal by September 15? across five venues. The live probability is the Polymarket mid-price, sourced directly from the on-chain Polygon order book; the comparison columns benchmark each venue on fee structure, KYC, settlement currency and payment rails. Every CTA routes to Polymarket Qué Es, which mirrors the Polymarket order book at 0% fees.
Resolution & payout
Polymarket-based markets settle through the UMA Optimistic Oracle on Polygon. A proposer submits the outcome, a two-hour challenge window opens, and unchallenged proposals finalise the resolution. Payouts settle automatically in USDC the moment the result is final — no bookmaker, no delay.
Kalshi-based markets settle in USD via the CFTC-regulated clearinghouse. Betfair Exchange settles in GBP/EUR net of commission. Manifold is play-money and does not pay out real funds.
FAQ
- Is this market available outside the US?
- Polymarket itself is geo-blocked in the US/UK/EU. Always check the legal status of prediction markets in your jurisdiction before trading.
- What's the difference between YES and NO shares?
- A YES share pays $1.00 if the event happens, $0 otherwise. A NO share pays $1.00 if the event doesn't happen. The market price between 0¢ and 100¢ is the implied probability.
- What does Polymarket cost to trade?
- Polymarket itself charges 0% — the only cost is the Polygon network fee, typically under $0.01 per transaction. Off-chain venues like Kalshi or Betfair charge 2-7% commission.
- Do I need to KYC for this market?
- On Polymarket directly, no — it's wallet-based. Intermediary brokers like Polymarket Qué Es trigger KYC only above $1,500 of lifetime trading volume; under that you trade pseudonymously with a single wallet address.
- How reliable are the quoted odds?
- The YES/NO percentages are the live mid-prices of the Polymarket order book. On deep markets they move every few seconds; on thinner ones you'll see short plateaus.
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