Strait of Hormuz traffic returns to normal by July 31?

Platform comparison

Market context

Commercial navigation in the Strait of Hormuz is expected to resume immediately following a US–Iran agreement finalized on 17 June, yet the 2% crowd-implied probability suggests traders doubt a return to normal traffic levels by 31 July 2026. Historical precedents show that while vessel counts can spike quickly after diplomatic breakthroughs—25 commercial ships crossed on the first Thursday post-agreement, the highest since April—sustained averages above 60 remain elusive due to lingering insurance hesitancy and port congestion [1]. Polymarket’s decimal odds format presents this 2% as 50.00, whereas Kalshi and Betfair typically display fractional or decimal pricing with stricter KYC requirements that may limit retail participation on such geopolitically sensitive events.

Traders should monitor the IMF Portwatch 7-day moving average of transit calls, which must hit 60 for any date before settlement, alongside weekly AXSMarine reports that track container, tanker, and bulk vessel movements [1]. Recent volatility in Shanghai container freight futures, driven by rate hikes from carriers like Mediterranean Shipping Company, indicates that shipping economics may still suppress volumes even if political barriers fall [2]. Kalshi’s fee structure differs from Polymarket’s by capping maker fees differently, while Smarkets offers lower taker fees but requires identity verification that Polymarket does not, creating divergent liquidity pools for this specific binary outcome. The settlement window closes at midnight UTC on 31 July 2026, meaning any delay in IMF data publication could force a “No” resolution regardless of actual traffic.

Sources: 1 · 2

Methodology

We read Strait of Hormuz traffic returns to normal by July 31? from four platform perspectives: Polymarket (on-chain CLOB), Kalshi (CFTC-regulated exchange), Betfair Exchange (sports book exchange), Smarkets (peer-to-peer betting exchange). Polymarket's live mid is the canonical probability; the side-by-side columns benchmark fees, KYC, settlement currency and deposit rails so you can choose the venue that fits your jurisdiction and trade size.

Resolution & payout

Settlement is the biggest difference between the four platforms: Polymarket on-chain in USDC (instant), Kalshi USD via CFTC (T+1), Betfair and Smarkets in local currency via bank withdrawal (T+1 to T+3). On-chain settlement clears in minutes — the fastest payout path of the four.

FAQ

Polymarket vs Kalshi — which is better?

Depends on your location. Kalshi is CFTC-regulated, US-only with full KYC. Polymarket is global, on-chain, no KYC up to $1,500. Polymarket has ~10x higher liquidity but higher regulatory risk.

Which platform has the deepest liquidity?

Polymarket — by a wide margin. Top markets reach $50-500M volume, Kalshi ~$200M cumulative, Betfair similar. Deeper liquidity means your trade moves the quote less.

Which platform is accessible globally?

Polymarket is geo-blocked in the US/UK/EU. Kalshi is US-only. Betfair and Smarkets are UK-restricted. Polymarket Alternative has a different geo footprint and routes to Polymarket's order book at 0% fees.

Are all these platforms regulated?

No. Kalshi is CFTC-regulated (US). Betfair and Smarkets are UK Gambling Commission licensed. Polymarket operates without explicit regulation — a different risk profile than a regulated sportsbook.

Which platform supports Klarna/SOFORT?

Directly: none. Polymarket accepts only USDC on Polygon. Polymarket Alternative offers a fiat on-ramp via Klarna or SOFORT (DE/AT/CH) and converts internally to USDC for the Polymarket order book. T+1 processing.