Strait of Hormuz traffic returns to normal by July 31?
I assess a moderately better-than-even chance (about 63%) that IMF Portwatch will report a 7-day moving average of Strait of Hormuz transit calls at or above 60 on at least one date by July 31, 2026, driven by historically high baseline traffic and the short window needed to hit the threshold but moderated by ongoing regional security and insurance risks.
Analysis
Historical baseline and structural factors: In normal conditions the Strait of Hormuz supports dozens of daily ship transits, and a 7-day moving average at or above 60 is consistent with pre-crisis baseline ranges for mixed vessel types (tankers, general cargo, containers, bulk). Over the last several years shipping volumes have trended toward recovery after pandemic disruptions, and seasonal summer patterns often sustain or slightly boost transits tied to energy and liner schedules, making a one-off rise to a 7-day MA ≥60 plausible within the remaining window to July 31.
Geopolitical and security risks: The principal dampening factor is regional security volatility—periodic attacks on shipping, naval incidents, sanctions enforcement, and insurance-driven rerouting can meaningfully lower transits by diverting traffic or delaying voyages, and such events can occur with little notice and sustain impacts for weeks. Conversely, any de-escalation, improved convoy protection, or temporary mitigation measures (e.g., escorted transits, reduced premiums for assigned routes) would quickly restore confidence and manifest in rising daily calls, which helps the Yes case because the market requires only one qualifying 7-day average within the window.
Market signals and data considerations: The market-implied probability (~56.5% Yes) and sizable traded volume indicate active opinions and some private information priced in, but the spread is narrow enough that new events could swing odds materially; additionally IMF Portwatch’s published series and allowance for data revisions during the window slightly favor eventual qualification since retroactive upward revisions can preserve a previously published qualifying value. The rule that only one date needs to reach the threshold reduces the burden compared with a sustained return to baseline, so I weigh short-term rebounds and data revisions more heavily than persistent long-term recovery.
Timing and probability nuance: With roughly seven weeks remaining, there is sufficient time for either an operational uptick or a disruptive incident to occur, so this assessment places moderate weight on the status quo and seasonal shipping patterns while discounting tail-risk escalations that would push the probability well below 50%. Overall, the balance of factors suggests a modestly higher than market probability for a qualifying 7-day moving average by July 31, but not a dominant likelihood given persistent regional uncertainties.
Arguments
For
- Typical mixed-ship traffic through the Strait is frequently at or above the 60-call level on a moving-average basis in normal conditions.
- Only a single date with a 7-day MA ≥60 is required, making short-term rebounds or brief spikes sufficient to trigger Yes.
- Summer seasonal factors and liner scheduling can produce temporary increases in transit calls that lift the moving average.
- Permissive policy moves or improved security measures would quickly restore operator confidence and push daily calls upward.
Against
- Ongoing regional security tensions could cause rerouting or delays that lower the number of daily transits below the threshold.
- Higher insurance and operating costs from perceived risk could permanently suppress some traffic during the market window.
- A multi-week disruption or sustained diplomatic crisis would likely prevent any 7-day window from reaching the required average.
- Data reporting lags or anomalies at IMF Portwatch, while rare, could either delay or prevent recognition of a qualifying average before the deadline.
Key drivers
- Baseline traffic volumes in the Strait historically hover around the threshold needed, so normal or slightly elevated activity will likely produce a qualifying 7-day average.
- Seasonal and schedule-driven peaks in tanker and liner operations during early summer can temporarily lift daily arrival counts.
- Any temporary de-escalation or improved convoy/protection arrangements would rapidly increase transits and the chance of a qualifying average.
- Data revisions and the rule that a single qualifying 7-day average suffices mean retrospective upward adjustments could validate a Yes outcome.
Risk factors
- Renewed or escalated attacks on shipping or naval incidents could depress transit counts and push shipowners to reroute.
- Rising war-risk insurance premiums or closed ports could materially reduce calls as operators avoid the Strait.
- Prolonged port congestion elsewhere or logistical slowdowns could temporarily reduce the number of transits through the Strait.
- Significant gaps or delays in IMF Portwatch reporting, or credible data integrity issues, could impede or postpone recognition of qualifying values.
Scenarios
Best case
A period of calm combined with a handful of above-average daily arrivals—driven by increased oil tanker movements or restored liner schedules—pushes the 7-day moving average to or above 60 at least once, and IMF Portwatch publishes a qualifying value (possibly aided by minor upward revisions), yielding a clear Yes resolution.
Most likely
Normal baseline traffic with modest week-to-week variability produces occasional short-lived upticks that, combined with the relatively low barrier of a single 7-day qualifying window, lead to a small but meaningful chance of at least one qualifying average, resolving in Yes but not by an overwhelming margin.
Worst case
A significant security escalation or a chain of attacks and insurance-driven rerouting reduces daily transits for an extended period, keeping 7-day averages below 60 through July 31, and IMF Portwatch reports no qualifying values, resulting in a No outcome.
More from this day
- HealthKalshi2y
What will the average number of measles cases be during Trump's term?
AI95%MKT34%Edge+61Hidden GemAssuming the market's 'Yes' means the 2025–2028 annual average exceeds 1,000 reported measles cases per year, I assess a very high probability (95%) that the average will be above that threshold given two consecutive >2,000-year starts and durable drivers keeping incidence elevated.
- sportsPolymarketEnded
UFC Freedom 250: Justin Gaethje vs. Ilia Topuria (Lightweight, Main Card)
AI22%MKT72%Edge-50HypedI assess Justin Gaethje has about a 22% chance to win; Ilia Topuria is the clear favorite due to youth, grappling, and stylistic matchup advantages, but Gaethje's finishing power and volatility keep his upset probability material.
- PoliticsKalshi2y
Taylor Swift and Travis Kelce: Wedding attendees
AI65%MKT20%Edge+45Hidden GemBased on historical friendship patterns and how celebrity guest lists for close friends typically form, I assess a substantially greater than even chance that Blake Lively would attend a Taylor Swift–Travis Kelce wedding if it takes place — independent probability 65%.