Strait of Hormuz traffic returns to normal by end of June?
I assess a 35% chance that IMF Portwatch will report a 7-day moving average of Strait of Hormuz transit calls at or above 60 on any date through June 30, 2026; the probability is below even odds because a sustained weekly rebound is possible but faces meaningful operational and security headwinds.
Analysis
We lack direct recent IMF Portwatch readings in this prompt, so this judgment synthesizes structural factors and the market-implied probability (Yes ~34%) rather than fresh portwatch numbers. The market price implies modest expectation of normalization, which is reasonable because the threshold requires a sustained 7-day average at or above 60 rather than a single-day spike, making the barrier higher and more sensitive to persistent flows rather than transient increases.
Historically, traffic through the Strait responds slowly to changes in security and commercial conditions: once shipping lines and charterers have rerouted to avoid perceived risk or higher insurance costs, flows often lag behind any improvement in the threat environment by weeks to months, because contracts, voyage economics, and insurance renewal cycles create inertia. Conversely, a concentrated and rapid improvement in security (ceasefires, de-escalation, or credible naval protection measures) can produce a relatively quick operational rebound if insurers and operators signal willingness to resume the route.
Market structure and the resolution rules slightly favor a Yes outcome relative to comparing single-day counts, because any published 7-day moving-average value meeting the threshold qualifies and intra-period revisions count if made before the end of the market window; therefore a late upward revision to a recent week could retroactively create a qualifying datapoint. However, only data published by IMF Portwatch counts, and reporting delays or data integrity holds could compress the effective time available for the required sustained rebound, especially with only about two full weeks remaining before the June 30 cutoff.
Key exogenous drivers over the next two weeks include sudden shifts in regional security incidents (attacks or ceasefires), OPEC/production adjustments that change tanker traffic volumes, and commercial decisions tied to insurance premiums and convoy availability; any of these can move daily arrival counts enough to lift a 7-day average, but each also carries substantial uncertainty and lead time for operators to change routing at scale.
Arguments
For
- Arguments for Yes — A credible short-term de-escalation or cessation of attacks would quickly restore some tanker and commercial transits and could lift a 7-day average above 60 within days.
- Arguments for Yes — Summer season demand increases in energy and certain commodity flows could add incremental transits and push daily counts upward.
- Arguments for Yes — The market needs only one qualifying 7-day moving-average datapoint and internal revisions published within the period count, making a retroactive qualification feasible if data are revised upward.
- Arguments for Yes — If insurers reduce war-risk premiums or shipping lines announce convoy support, operators could rapidly shift voyages back to the shorter Strait route for economic savings.
Against
- Arguments against Yes — Shipping companies that have rerouted to longer but safer routes will not necessarily reverse course quickly because contracts, schedules, and container chain logic create inertia.
- Arguments against Yes — Continued high insurance costs and residual risk perceptions could suppress traffic even if attacks lessen, keeping daily arrivals below the threshold.
- Arguments against Yes — A sustained 7-day average requires consistently higher daily counts across a week, which is harder to achieve from a baseline of dispersed, partial recoveries or intermittent spikes.
- Arguments against Yes — Any significant geopolitical flare-up or fresh attacks in the remaining two weeks would almost certainly eliminate the chance of reaching a 7-day average at or above 60 before the cutoff.
Key drivers
- Easing of regional security incidents and a credible reduction in attacks would quickly encourage ships to resume the Strait route.
- Large increases in tanker cargo demand or OPEC production that materially increase tanker transits through the Strait would raise daily arrivals.
- Reductions in war-risk insurance premiums or clearer naval protection/escorts would lower operational cost for shipping lines to return.
- IMF Portwatch reporting timing and any upward revisions within the market window can create a qualifying 7-day average even if live counts looked marginal.
Risk factors
- Renewed or persistent attacks on commercial shipping will keep ships rerouted and prevent a sustained weekly recovery.
- High insurance and security costs could maintain commercial incentives to avoid the Strait for weeks to months.
- Commercial inertia: existing long-haul rerouting contracts and voyage economics can delay a return even if security improves.
- Reporting lags or conservative data publication by IMF Portwatch could compress the available window for a qualifying published 7-day average.
Scenarios
Best case
A rapid, verifiable de-escalation—characterized by an official ceasefire, removal of active attacks on commercial shipping, and quick signals from insurers and shipping lines—drives several consecutive days of elevated transits, IMF Portwatch publishes a 7-day moving average at or above 60 during late June, and the market resolves Yes.
Most likely
Partial improvements are accompanied by intermittent spikes in transit counts but not sustained seven-day runs above the threshold; IMF Portwatch data may show brief increases but not a qualifying 7-day moving average, leading to a No resolution while keeping the market price volatile around current levels.
Worst case
Continued or renewed attacks, a fresh incident that scares insurers, or a geopolitical escalation prompts sustained rerouting and low daily counts through late June, producing no published 7-day average at or above 60 and a No resolution.
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