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PolymarketGeopoliticsUpdated 3m ago

Strait of Hormuz traffic returns to normal by September 30?

Market probability
1.7%
Little changed over 24 hours
20 days until the event deadline
Deadline: September 29, 2026 at 8:00 PM ET

No meaningful repricing — the probability is steady.

The pricing is supported by healthy trading volume and market depth, a tight spread.

How credible was the move?

Three separate questions — a move can be genuine while the latest price is still settling. Methodology →

Move validity

Is the move backed by real trading and depth?

Strong

The pricing is supported by healthy trading volume and market depth, a tight spread.

Consensus stability

Has the market settled at the new probability?

Stable

The probability has held near its current level over the past several hours.

Contract clarity

Will the rules resolve without ambiguity?

High

The resolution rules are relatively specific, with a named source and a defined deadline.

Recent trade activity$215.5 traded

From the latest trade tape (most recent 200 prints) — a live activity sample, not a lifetime total.

What this market actually measures

This market will resolve to “Yes” if IMF Portwatch publishes a 7-day moving average of transit calls (“Arrivals of Ships”) for the Strait of Hormuz equal to or above 60 for any date between market creation and September 30, 2026. Otherwise, this market will resolve to “No”.

This summary shows the opening of the venue's official rules. ProbCast has not yet generated an independent plain-English interpretation for this contract — review the full rules before relying on it.

View full official resolution rules

This market will resolve to “Yes” if IMF Portwatch publishes a 7-day moving average of transit calls (“Arrivals of Ships”) for the Strait of Hormuz equal to or above 60 for any date between market creation and September 30, 2026. Otherwise, this market will resolve to “No”. Daily transit calls include container, dry bulk, roll-on/roll-off, general cargo, and tanker ships. Ships not reported by IMF Portwatch will not be considered. This market will resolve as soon as IMF Portwatch publishes a 7-day moving average of transit calls equal to or above the specified level, or once data has been published for the final date in the specified period and no such value has been published. If no data has been published for the final date of the specified period within 14 calendar days (ET) after the end of that period, this market will resolve based on data published up to that point. Revisions to previously published data points made within this market’s timeframe will be considered. However, they will not disqualify a previously published data point from qualifying. Revisions to previously published data points after data is published for September 30, 2026, however, will not be considered. In case of obvious data integrity issues (i.e., erroneous data), the market may remain open until the end of the third calendar day (ET) after the date on which such data is first released to allow for corrections. Data integrity issues refer only to clerical or other similar errors in the underlying data, and do not include cases where IMF Portwatch differs from alternative sources. The resolution source for this market will be IMF Portwatch, specifically the transit calls data published for the Strait of Hormuz at https://portwatch.imf.org/pages/cb5856222a5b4105adc6ee7e880a1730, both in the chart and through downloadable files.

What could move this market next?

  • The market's deadline arrivesSeptember 29, 2026 at 8:00 PM ET

    The contract must resolve based on what has happened by this date.

Derived from the contract's own mechanics as of Sep 8, 11:39 PM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.

Probability by deadline

The same event, priced across deadline contracts on this venue.

Extending the deadline from Oct 30 to Dec 30 adds about 15.0 percentage points of implied probability.

Advanced analysis (experimental)

Research signals — these models are still accumulating the history needed for full validation, and they can disagree with the headline read. Model confidence: high · expected error ±6 pts.

Trading normallyLegacy movement classifier: watch

What's happening

medium classifier confidence
Trading normally

Liquid, two-sided, and calm. The current price reads as settled consensus — the latest print is a reasonable summary of what the market believes.

  • Liquid, two-sided, and calm — price behaving as settled consensus

The latest price is a dependable read of consensus.

More details — reliability score, dynamics, durability
Reliability score
67High
Where the price path tends to go next411 observed
  • Stable consensus95%
  • Choppy / mean-reverting3%
  • News repricing2%

Short-term motion of the price line (~1h), distinct from the environment above — not a prediction of the final outcome.

DurabilityHigh· half-life ~3d
PredictabilityStable

Secondary read: leaning toward Quote-driven.

A read-only classification of the market environment — how much weight the current price deserves as a read of consensus. It describes conditions, never a trade.

Market data

24h volume

$138.1K

Liquidity

$338.8K

Total volume

$8.1M

Category
Geopolitics
Venue
Polymarket
Open interest
Spread
0.2 pts
Best bid
1.6%
Best ask
1.8%
7-day range
1.7% – 1.9%
Resolves
Sep 29, 2026
Change (pts)1H0.06H0.024H-0.27D-0.2

Cross-venue check

0.7 pts apart
Match: normalized event signature (moderate match)

Manifold prices this same question at 1% vs Polymarket at 2%. The venues broadly agree, which adds confidence to the price.

Compare on Manifold

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