Strait of Hormuz traffic returns to normal by October 31?

Platform comparison

Market context

The latest read-through is still one of constrained traffic, not a return to normal. Reuters reported on 24 August that fewer than 20 commodity vessels crossed the Strait of Hormuz over the weekend, with seven-day flows well below typical levels, while earlier Reuters updates put daily transits in the single digits and only slowly edging up from the lows seen after the recent tanker attacks.[8][9][11][12]

That history makes a 19% YES probability look consistent with a market that needs a sharp, sustained normalisation rather than a modest rebound. Comparable August episodes show the strait moving from roughly 30-plus vessels in a week to single-digit days very quickly when security risk rises, and PortWatch-linked trackers have described recent traffic as a small fraction of the usual pre-crisis run-rate.[1][2][3][14][15]

For traders, the key catalysts are any de-escalation around Iran and Gulf shipping, changes to naval protection or blockade language, and whether carriers stop rerouting. Reuters has repeatedly linked traffic swings to hostilities, US-Iran talks, and carrier behaviour, so the next mover is likely to be either a security announcement or a step-change in vessel schedules rather than ordinary demand data.[6][7][8][11][12]

Sources: 1 · 2 · 3 · 4 · 5

Methodology

We track Strait of Hormuz traffic returns to normal by October 31? across the five venues with material prediction-market liquidity. The probability shown is the live Polymarket mid; the comparison rows summarise how each venue treats the underlying contract — fees, KYC thresholds, settlement currency, deposit options. The highlighted row marks the cheapest route into Polymarket's order book.

Resolution & payout

Settlement runs on-chain. Polymarket's contract logic separates YES and NO shares as conditional tokens; at resolution the winning share lifts to $1.00 and the losing one to $0. The outcome input comes from the UMA Optimistic Oracle, which secures against bad resolution with a bond + dispute window.

Once finalised, the smart contract pays USDC to the holders' wallets within minutes — no withdrawal fees beyond Polygon network gas. Kalshi settles in USD via CFTC clearance, Betfair in account currency net of commission, Manifold in play-money mana with no cash-out.

UK Frequently Asked Questions

Where can I trade this market with the lowest fees?

Polymarket is geo-blocked in the US/UK/EU. The easiest 0%-fee broker into the same order book is Prediction Today. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

How does resolution work?

Through the UMA Optimistic Oracle on Polygon: a proposer submits the outcome, a two-hour challenge window opens, and USDC payouts settle automatically once the result is final.

Is Polymarket legal in the UK?

Polymarket is accessible to UK traders but is not UKGC-licensed. It operates under US CFTC jurisdiction. UK residents face no domestic legal prohibition on using it, but UKGC consumer protections do not apply. For UKGC-regulated alternatives, Betfair Exchange and Smarkets offer similar prediction-style markets.

Do I pay tax on prediction market profits in the UK?

UKGC-licensed platform profits (Betfair, Smarkets) are typically tax-free gambling winnings for UK individuals. Polymarket profits involve USDC crypto transactions, which HMRC treats as Capital Gains Tax events. Keep full transaction records and report via Self Assessment if gains exceed £3,000 per tax year.

How do I deposit on Polymarket from the UK?

UK traders typically fund Polymarket via Coinbase UK, Kraken or Revolut — buying USDC with GBP and transferring to a Polygon-compatible wallet (MetaMask, Coinbase Wallet). Polymarket's onboarding walks you through the bridging process. Typical GBP-to-USDC conversion costs 0.5–1%.