ManifoldGeopoliticsUpdated 14m ago

Will IMF PortWatch show a Strait of Hormuz 7-day transit average of 15 or more on any date through Oct 15, 2026?

As of Sep 30, 2026, 9:42 PM ET, Manifold priced this market at 8.7% (down from 11.2% 24 hours earlier). It had Ṁ50 traded in the past 24 hours and Ṁ100 of order-book liquidity. probcast.co rates the support behind this price as moderate.

Market probability
8.7%
−2.4 percentage points
over 24 hours11.2% → 8.7%
14 days until the event deadline
Deadline: October 15, 2026 at 7:59 PM ET

A repricing with partial backing — read the new probability with some caution.

The pricing has partial support: moderate trading volume.

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?

Moderate

The pricing has partial support: moderate trading volume.

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$283.5 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 resolves 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 15 for any date from 2026-08-15 through 2026-10-15 inclusive. Otherwise 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 resolves 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 15 for any date from 2026-08-15 through 2026-10-15 inclusive. Otherwise NO. Daily transit calls include container, dry bulk, roll-on/roll-off, general cargo, and tanker ships — i.e. the n_total field. Ships not reported by IMF PortWatch are not considered. Resolution source (named, public, machine-readable): IMF PortWatch daily chokepoint data for portid='chokepoint6', as published in the PortWatch dashboard and its downloadable / ArcGIS feed: https://services9.arcgis.com/weJ1QsnbMYJlCHdG/arcgis/rest/services/Daily_Chokepoints_Data/FeatureServer/0/query?where=portid%3D%27chokepoint6%27&outFields=date,n_total&orderByFields=date%20DESC&resultRecordCount=30&f=json The 7-day moving average is the mean of n_total over the stated date and the six preceding days. PortWatch data lags roughly 5 days; this market resolves once data covering 2026-10-15 has been published (expected ~Oct 20). If no data covering 2026-10-15 has been published within 14 calendar days after Oct 15, the market resolves on data published up to that point. Revisions published before resolution count, and do not disqualify an already-qualifying value. Why this bar. Three existing Manifold/Polymarket rungs ask whether Hormuz traffic returns to normal (a 7dMA of 60) by Dec 31, Jan 31, and Feb 28. Nothing asks about partial relief. Since the mid-March collapse, the 7dMA has been at or above 60 on zero of 148 days — but it did clear 15 during exactly one episode, 2026-06-24 through 2026-07-09, peaking at 26.71 on Jun 30 during the June US–Iran MoU. As of the latest published date (Aug 9) it sits at 4.43. So this asks the live question the 60-bar rungs can't: does the strait get one more window of meaningful relief in the next two months, or does the blockade simply hold?

What could move this market next?

  • The market's deadline arrivesOctober 15, 2026 at 7:59 PM ET

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

Derived from the contract's own mechanics as of Sep 30, 9:56 PM ET. ProbCast does not list scheduled meetings, announcements, or data releases it cannot verify.

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: low · expected error ±19 pts.

Thin marketLegacy movement classifier: watch

What's happening

medium classifier confidence
Thin market

Thin book and/or wide spread. Small orders can move this price disproportionately, so any single print is noisy and easily overread.

  • Thin book and/or wide spread.

Read with caution —Read the latest price with caution; conditions make it an unreliable summary right now.

More details — reliability score, dynamics, durability
Reliability score
13Low
Where the price path tends to go next1089 observed
  • Illiquid / quiet99%

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

DurabilityHigh· half-life ~23h
PredictabilityStable

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

Ṁ50

Liquidity

Ṁ100

Total volume

Ṁ285.7

Category
Geopolitics
Venue
Manifold
Open interest
—
Current probability
8.7%
7-day range
8.7% – 11.2%
Resolves
Oct 15, 2026
Change (pts)1H0.06H0.024H-2.47D-2.4

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