Strait of Hormuz traffic returns to normal by end of June?
I assess a 30% probability that IMF Portwatch's 7-day moving average for Strait of Hormuz transit calls will reach or exceed 60 on any date by June 30, 2026, reflecting limited time left and substantial upside scenarios but meaningful downside risks from security, reporting, and structural shifts in routing.
Analysis
The market-implied probability (Yes ~22.5%) indicates participants see this outcome as unlikely but not impossible; the market has substantial liquidity, so the price reflects active trading around a relatively short remaining window (12 calendar days). With fewer than two weeks left, any qualifying 7-day average must be produced by a sustained run of daily counts at or above the threshold, or by revisions to earlier published data within the market timeframe that lift the 7-day series above 60.
Absent reliable live reporting in this prompt, the assessment relies on structural knowledge of chokepoint traffic behavior: in normal, uneventful conditions the Strait of Hormuz regularly supports heavy tanker and commercial transits such that a 7-day average at or above 60 is plausible, while security incidents, insurance-driven re-routing, or sanctions-driven reductions can push counts materially lower. Seasonality and short-term operational events (e.g., backlog clearing at nearby ports, temporary re-openings of previously constrained routes) can produce rapid upward swings, but those swings must be sustained for a week to satisfy the moving-average condition.
Data mechanics and reporting nuance materially affect resolution odds: IMF Portwatch counts only reported arrivals and is subject to later revisions during the market window, so a late upward revision to previously published days could retroactively create a qualifying 7-day average, increasing the chance relative to purely realized daily flows; conversely, under-reporting or classification differences could keep published counts below the threshold even if real movements are higher. The market’s relatively low Yes price suggests traders either believe published counts have been depressed recently or that structural factors make sustained >=60 unlikely within the remaining period.
Balancing these considerations, I place probability above the market-implied 22.5% but comfortably below 50% because the remaining time is short and the 7-day averaging requirement raises the bar: while short-term rallies or revisions could produce a hit, multiple contiguous high-count days or favorable revisions would be required, and those are uncertain enough that No remains the most likely resolution.
Arguments
For
- If current published 7-day averages are close to 60, a small sustained uptick or a single retroactive upward revision could produce a qualifying value before June 30.
- De-escalation of regional tensions or explicit security assurances could quickly restore commercial confidence and push daily calls higher.
- Operational clearances and port backlog resolution in the region can generate temporary surges in transits sufficient to lift a 7-day mean.
- Seasonal or short-term increases in oil tanker and dry-bulk demand could create the contiguous high-count days needed for a 7-day average above 60.
- IMF Portwatch revises data within the permitted window, which could convert a near-miss published series into a qualifying 7-day average.
- Short-term commercial incentives (e.g., charter opportunities, repositioning of empty tonnage) can cause concentrated spikes in reported arrivals.
Against
- Sustained security incidents or new attacks would reduce traffic and make a contiguous 7-day run above 60 unlikely.
- If the current 7-day average is substantially below 60, the remaining calendar days may be insufficient to lift the moving average to the threshold.
- Ship operators may continue routing choices or insurance-driven patterns that keep transit volume depressed despite demand elsewhere.
- IMF Portwatch may not record certain ship movements or may publish conservative counts that remain below the threshold even if true traffic is higher.
- Adverse weather or local port disruptions in the short window could suppress arrivals and prevent a qualifying streak.
- Late publishing issues or data integrity holds could effectively shorten the practical time for a qualifying 7-day average to appear.
Key drivers
- Recent published daily transit counts and the current 7-day moving average published by IMF Portwatch, since a current baseline near 60 makes attainment much easier.
- Security incidents or de-escalations in the Gulf that materially decrease or increase commercial willingness to transit the Strait.
- Insurance and freight-cost dynamics that affect carrier routing choices and volume through the chokepoint on short notice.
- Port operations and backlog dynamics in nearby ports that can generate temporary surges of transit traffic through the Strait.
- Revisions to IMF Portwatch data within the market window that could retroactively create a qualifying 7-day average.
- Seasonal demand patterns for oil and dry-bulk shipping that can temporarily raise or lower daily transit counts.
Risk factors
- Continued or escalating security incidents that suppress transits and make sustained daily counts above 60 unlikely.
- Systematic under-reporting or classification differences between actual movements and IMF Portwatch arrivals that keep the published series low.
- A short remaining window means random weather or operational outages have outsized ability to prevent a 7-day qualifying streak.
- Large-scale rerouting due to competing chokepoint issues (e.g., Suez/Bab el-Mandeb congestion elsewhere) that divert traffic away permanently or temporarily.
- Delayed publication or data integrity issues that compress the time available for qualifying data to appear within the market rules.
- Market liquidity and trader risk preferences that may cause the market price to diverge from fundamental likelihoods in short windows.
Scenarios
Best case
A combination of improving regional security, a short-term commercial surge (e.g., backlog clearing or seasonal peak), and a timely upward revision to previously published days produces a contiguous set of daily counts that lifts the IMF Portwatch 7-day moving average to 60 or above before June 30, resolving the market as Yes.
Most likely
No resolves: published counts fluctuate but remain below the 60 7-day threshold, with occasional single-day spikes that are insufficiently sustained and any revisions either absent or too small to create a qualifying 7-day mean before the end of June.
Worst case
Security incidents, ongoing re-routing, or continued under-reporting keep published arrivals well below the threshold for the remainder of June with no retroactive revisions, resulting in a No resolution and confirming the current market skepticism.
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