Strait of Hormuz traffic returns to normal by December 31?

Platform comparison

Market context

The Strait of Hormuz remains a critical chokepoint for global energy flows, with roughly one-fifth of the world's seaborne oil passing through its narrow waters daily. Since mid-2024, regional tensions involving Houthi attacks on shipping, Iranian military posturing, and US naval presence have disrupted normal traffic patterns. The IMF Portwatch metric—a 7-day moving average of transit calls tracking container, tanker, bulk, and general cargo vessels—serves as the operational barometer for whether commercial shipping has genuinely normalised rather than merely resumed at reduced capacity. A reading of 60 or above represents the threshold for settlement; baseline pre-disruption levels typically ranged between 65 and 75 calls daily.

Historical precedent suggests that shipping corridors under geopolitical stress recover unevenly. The 2019–2020 tanker attacks and subsequent US–Iran escalation saw transit volumes decline sharply but rebound within 4–6 months once insurance costs stabilised and routing alternatives proved unsustainable economically. However, sustained regional instability—particularly if Houthi interdiction continues or Iranian actions escalate—can keep traffic depressed for years. The 31% implied probability reflects genuine uncertainty about whether current tensions resolve by end-2026 or calcify into a new operating environment.

Traders monitoring this market programmatically should track IMF Portwatch data releases directly and set conditional alerts for the 60-call threshold. Watch for announcements regarding Houthi ceasefire negotiations, US–Iran diplomatic engagement, or insurance premium adjustments, which typically precede shipping behaviour shifts. Regional military incidents or new sanctions regimes could trigger sharp downward revisions; conversely, successful diplomatic breakthroughs or effective naval escort operations would accelerate recovery timelines.

Methodology

This page reviews Strait of Hormuz traffic returns to normal by December 31? 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 Bot UK, 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.

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 Polymarket Bot UK. Kalshi charges up to 7% per trade; Betfair Exchange takes 2-5% commission on net winnings.

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.

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%.