Strait of Hormuz traffic returns to normal by December 31?

Platform comparison

Market context

The Strait of Hormuz remains the key variable: the market is effectively a bet on whether commercial shipping can sustain a 7-day average of at least 60 arrivals before year-end, after a period of severe disruption. Recent trader pricing has leaned slightly positive, with Polymarket putting the chance of a year-end return to normal around 56% and other market trackers showing a similar mid-50s to low-60s range, so the current 53% crowd view sits close to the centre of that spread rather than implying a strong edge either way.[7][1]

Historical read-throughs matter here because the strait has not behaved like a simple on/off switch. Reuters reported in April that traffic was still running at well under 10% of normal even after a ceasefire, while the New York Times later said a reopening deal still left “technical and military challenges”, including mine clearing, before pre-war levels could be restored.[15][16] That pattern suggests traders are leaning on a gradual-recovery scenario: once conditions improve, PortWatch can move quickly, but the settlement test is strict and depends on a sustained 7-day print, not a one-day spike.[16][4]

The main catalyst to watch is whether the ceasefire and reopening arrangement holds through further diplomatic updates, because news flow around enforcement, naval security guarantees and any renewed maritime incidents is what has moved this market most recently.[1][13] Traders should also watch for fresh IMF PortWatch releases, since the contract resolves the moment the 7-day average reaches 60 or more, and a single new data point can settle it early if volumes recover faster than expected.[4][16]

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.

UK Frequently Asked Questions

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.

Are UK election prediction markets available from the UK?

Yes. Betfair Exchange and Smarkets offer UKGC-regulated UK election markets (seat counts, party share, constituency results). Polymarket also lists UK election contracts with deeper global liquidity. Betfair winnings are typically tax-free for UK individuals; Polymarket profits are subject to HMRC CGT.