Strait of Hormuz traffic returns to normal by December 31?

Platform comparison

Market context

Ships are barely moving through the Strait of Hormuz, with daily transits hovering at fewer than ten vessels compared to over a hundred before the February 2026 closure. This near-total blockade has persisted for 100 days, driven by mine-clearance delays, war-risk insurance surcharges, and Iran’s asymmetric deterrence using drones and missiles to keep oil prices elevated [3][4]. The crowd-implied 84% YES probability for normal traffic by December 31 reflects optimism tied to a specific diplomatic pivot rather than current operational reality.

Historically, such chokepoints have reopened only after high-stakes agreements or forceful external pressure, as seen when the Suez Canal resumed operations following the 1974 ceasefire. Current traffic remains suppressed at 5–10% of pre-war levels, with isolated LNG movements but minimal tanker flows [1]. The market leans heavily on the June 15 U.S.-Iran framework announcement and the expected June 19 memorandum signing to reopen the strait, which Kpler estimates could restore roughly 40 daily transits within 30 days if setbacks do not emerge [1].

Traders must watch for the formal signing of the June 19 memorandum and any subsequent IMF Portwatch data confirming a 7-day moving average of 60 or more arrivals. NBC News reports that President Trump has declared a naval blockade against Iran due to stalled peace talks, making the reopening a prerequisite for any ceasefire [5]. If the memorandum is not signed or if Iran reverses its reopening again, the probability will collapse; conversely, verified data showing sustained recovery will cement the YES outcome. The catalyst is the June 19 agreement, not gradual commercial improvement [1].

Sources: 1 · 2 · 3 · 4 · 5

Methodology

Political prediction markets differ structurally from sports betting: thinner liquidity, longer settlement windows, higher sensitivity to single news events. This page shows the live Polymarket quote for Strait of Hormuz traffic returns to normal by December 31? plus platform attributes for the three reference venues, so you can see at a glance where the deepest market for this question sits.

Resolution & payout

Political markets typically settle on official candidate or agency confirmation. Polymarket uses UMA Optimistic Oracle: a proposer posts the outcome with a bond, the two-hour window opens, then the smart contract pays USDC.

Kalshi settles USD via CFTC clearinghouse, with clearly defined resolution sources (e.g. AP race calls for elections). Betfair settles after the official outcome is registered with the league or agency. Manifold is play-money.

FAQ

How accurate are political prediction markets?

Historically more accurate than polls. Polymarket's Brier score on US 2024 elections was ~0.11 — better than 538 (~0.14) and every mainstream poll. Markets aggregate information with real skin in the game.

What resolution source is used for elections?

Polymarket defines the source per contract — usually Associated Press (AP Race Call), Reuters or the official electoral commission. The source is stated in contract details before the market opens.

Can prediction markets influence election outcomes?

Markets reflect expectations rather than create them. Studies show public-facing markets can anchor expectations, but don't influence the underlying outcome. Political markets are information, not advocacy.

Which platform has the deepest political liquidity?

Polymarket — by far. US 2024 presidential volume was ~$3.5B vs Kalshi (~$200M) and Betfair (~$120M). Where Polymarket is geo-blocked, brokers like Trump Prediction route into the same order book at 0% fees.

Why do Polymarket and Kalshi differ on elections?

Kalshi must follow CFTC compliance — strict definitions, clear resolution sources, US citizens only with KYC. Polymarket operates globally without CFTC oversight — deeper liquidity, but also higher regulatory risk.