Will 2026 ships transit the Strait of Hormuz on any day by July 31?

Platform comparison

Market context

Ships regularly cross the Strait of Hormuz, a critical chokepoint for global oil flows, yet the crowd-implied 46% probability for any day by July 31, 2026, reflects a sharp historical downturn. IMF PortWatch data shows 41 transit calls in the week of 9–15 March 2026, averaging 5.86 daily, but this is a collapse of over 95% compared to pre-Iran war levels of 75–125 ships per day[1][7]. The strait still handles over 30,000 vessels annually with daily oil volumes exceeding 20 million barrels, yet the current low traffic suggests heightened geopolitical risk or supply chain rerouting[5].

Traders should monitor IMF PortWatch’s weekly revisions and monthly satellite updates, as finalized daily data is only considered once the next day’s point is available[2][6]. Key catalysts include any announced Red Sea or Persian Gulf disruptions, Iran-related sanctions, or shifts in tanker routing that could spike daily transit calls above the threshold[3][10]. Recent IMF alerts updated 12 May 2026 highlight ongoing trade disruptions due to attacks on commercial ships, which may further suppress or unpredictably alter traffic patterns[10]. Watch for whale flows in BTC/ETH markets tied to USDC settlement volatility, as crypto funding rates often mirror real-world trade risk sentiment.

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Methodologically this overview focuses on on-chain pricing: Polymarket's live mid comes from the Polygon conditional-token order book and settles automatically in USDC. The other three venues — Kalshi, Betfair, Manifold — sit alongside as off-chain reference points so you can see how the contract translates across regulatory and settlement regimes.

Resolution & payout

Settlement is on-chain via UMA Optimistic Oracle. A proposer posts the outcome with a bond, a two-hour dispute window opens, then the smart contract lifts winning conditional tokens to 1 USDC and sends payments to holders' wallets automatically. No withdrawal fees beyond Polygon gas.

Off-chain venues (Kalshi, Betfair, Smarkets) settle in local fiat through bank-side clearing — faster than SWIFT, slower than on-chain. Manifold pays no real cash.

FAQ

Why USDC and not ETH or USDT?

USDC is the Polygon standard — audited reserves (Circle, monthly attestation), deepest order book, low gas costs. ETH volatility would distort probability quotes; USDT has thinner Polygon liquidity than USDC.

Can I use Bitcoin directly?

No, Polymarket operates exclusively in USDC on Polygon. You can bridge BTC to USDC via an exchange or bridge service and deposit on Polygon — typically 10-30 minutes processing time.

How volatile are crypto prediction markets?

Crypto markets react to spot prices — a 5% BTC move typically shifts a "BTC above X by date" market 10-20%. Polymarket crypto market liquidity is usually six-figure USD, sufficient for active trading.

Which crypto markets exist on Polymarket?

Currently active markets include BTC/ETH/SOL price targets, halving dates, ETF approvals, hard-fork outcomes and Layer-2 TVL thresholds. The list updates weekly; biggest volume sits on BTC and ETH price forecasts.

Are crypto prediction markets taxable in the US?

In the US, prediction market gains are typically treated as ordinary income or short-term capital gains depending on holding period. Consult a tax professional for your specific situation — we cannot provide tax advice.