Strait of Hormuz traffic returns to normal by end of June?
I assess a low but non-negligible chance (around 18%) that IMF Portwatch will publish a 7-day moving average of Strait of Hormuz transit calls at or above 60 for any date through June 30, 2026, because current market sentiment and likely recent data point to below-threshold traffic but upside exists from rapid normalization or data revisions.
Analysis
I do not have live access to IMF Portwatch data right now, so the market price (Yes 15.5%) and general patterns of maritime flows are the primary signals I can use; that market price implies participants believe a rebound to a 7-day average >=60 before the end of June is unlikely. Given the short remaining time window (about three weeks from June 6), any move to a 7-day average above 60 would require a sustained and substantial increase in daily reported transit calls or retroactive upward revisions of recent days' counts that lift the moving average.
Historically, Strait of Hormuz transit counts can be volatile in response to security incidents, sanctions, and global energy demand cycles, and busy periods can produce daily arrivals near or above the 60 level while quieter periods fall well below it; therefore whether the series crosses the threshold depends heavily on recent trend direction and magnitude. If recent published Portwatch values are substantially under 60, recovering to a 7-day average of 60 requires several consecutive high-count days, which is statistically unlikely without a clear, observable change in the underlying drivers.
Market sentiment appears to price in continued below-threshold traffic, leaving room for contrarian upside if a credible de-escalation, major oil export surge, or a correction/revision to reported counts occurs quickly; conversely, any new regional incidents or continued rerouting around the Cape of Good Hope would further suppress the chance of hitting the threshold. Data integrity and reporting lags also matter here: IMF Portwatch revisions to earlier days (which are allowed within the market window) could create a technical path to Yes even if raw daily flows do not materially change going forward, which slightly increases probability over a pure short-term-flow view.
Finally, seasonality and global demand are mixed influences: northern-hemisphere summer shipping patterns can elevate certain cargo movements, but the impact on aggregated Strait-of-Hormuz transit calls is indirect and usually incremental rather than large step-changes; therefore, absent an identifiable catalyst (policy change, resumed tanker flows, or a mass redeployment of rerouted ships back through the Strait), the market-implied low probability is sensible and I only modestly increase it to reflect the non-zero chance of a rapid normalization or reporting adjustments.
Arguments
For
- A rapid regional diplomatic de-escalation could prompt shipping to return quickly to the shorter Hormuz route, increasing daily transit calls.
- A surge in Gulf oil exports or a large chartering wave could produce several consecutive high-count days that push the 7-day average above 60.
- IMF Portwatch could revise upward recently published daily counts within the market window, producing a technical crossing of the 60 threshold.
- Seasonal increases in certain cargo types during June could contribute incrementally to higher aggregate transit counts.
Against
- If recent published counts are well below 60, achieving a 7-day moving average >=60 in three weeks requires sustained, unusually large increases in daily arrivals, which is unlikely.
- Continued use of alternate routes and pipelines reduces tanker traffic through Hormuz and makes a rapid recovery to historical highs unlikely.
- Ongoing geopolitical friction or sporadic security incidents would keep traffic depressed and discourage reverse-routing back through the Strait.
- Even with modest increases in activity, the smoothing effect of a 7-day moving average makes short sharp spikes insufficient to reach the 60 threshold.
Key drivers
- Current published IMF Portwatch daily counts and their recent trend, which directly determine the 7-day moving average.
- Regional security environment and any rapid de-escalation between Iran and surrounding states that would encourage re-routing back through the Strait.
- Changes in crude oil export volumes from Gulf producers or lifting of sanctions that materially increase tanker transits.
- Shipping companies' routing choices, including decisions to reverse prior detours around Africa and return to the shorter Hormuz route.
- Retroactive revisions by IMF Portwatch to previously published daily counts within the market window that could mechanically raise the 7-day average.
Risk factors
- A new security incident or spike in harassment/attacks that keeps ships away from the Strait and depresses daily counts.
- Permanent or growing use of alternative routes and pipelines that structurally reduce tanker and cargo transits through Hormuz.
- Persistent weak global trade or oil demand that keeps vessel counts low despite regional stability.
- Reporting lags or continued undercounting by IMF Portwatch that prevent an above-threshold 7-day average even if actual vessel activity is higher.
Scenarios
Best case
A swift, verifiable de-escalation accompanied by a coordinated return of tanker and cargo movements results in several consecutive daily counts above recent norms and/or IMF Portwatch issues upward revisions for prior days, producing a 7-day moving average at or above 60 by mid-to-late June.
Most likely
Traffic remains below the 60 threshold for the remainder of June with occasional day-to-day upticks, no sustained run of high-count days, and perhaps small within-window revisions that fall short of pushing the 7-day average to 60, leading to a No resolution.
Worst case
Security incidents or enduring rerouting and pipeline substitution keep daily transit calls well below the threshold and no retroactive revisions occur, so the 7-day moving average remains under 60 through June 30 and the market resolves to No.
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