Strait of Hormuz traffic returns to normal by December 31?
I assess a 75% probability that IMF Portwatch will report a 7-day moving average of transit calls through the Strait of Hormuz at or above 60 on at least one date by December 31, 2026, driven by shipping incentives to resume normal routings and the relatively modest threshold required for resolution, but subject to meaningful geopolitical and demand-side risks.
Analysis
Market-implied probability (Yes = 80.5%) is high and the market shows substantial liquidity, indicating many participants already place heavy weight on a return to baseline traffic; that price is a useful reference but not determinative, so I adjust slightly lower to account for downside geopolitical risk and uncertainty in underlying data publishing. Crucially, the contract resolves if IMF Portwatch publishes a single 7-day moving average >=60 at any point, which materially lowers the numeric bar relative to requiring sustained normalization and makes a one-off rebound or measurement revision capable of producing a Yes resolution.
Historically, pre-major-disruption levels of daily transits through the Strait of Hormuz (counting tankers and other commercial calls) typically exceeded the mid-60s to 80s range, so 60 is within or slightly below normal seasonal and structural variability; this means that, absent active deterrent incidents, normal seasonal upticks or a partial return of tankers diverted during earlier crises would plausibly push a 7-day average above 60. Even with partial rerouting patterns persisting, temporary windows of higher arrivals (for example, fleet repositioning, tanker voyages timed to deliveries, or reduced diversions because of improved escorts/insurance) could produce a qualifying 7-day average.
Geopolitical and security factors are the decisive external variable: sustained or renewed attacks on merchant shipping (e.g., Iranian harassment, proxy strikes, or organized interdiction campaigns) or sharply higher insurance premiums that keep vessels routed away would substantially depress the probability; by contrast, durable diplomatic de-escalation, successful multinational convoy operations, or unilateral changes in naval posture that reduce perceived risk would push traffic back toward pre-crisis norms. Demand-side factors — global seaborne oil and commodity demand, regional export patterns, and seasonal shipment cycles — provide a moderate but nontrivial influence because lower global volumes can keep transit counts depressed even if security improves.
Weighing these elements, a single crossing event remains relatively likely by year-end given shipping economics and the modest threshold, but non-negligible tail risks from geopolitics and global demand justify a probability below the current market price; 75% reflects a robust baseline expectation of at least one qualifying 7-day average while preserving room for credible downside scenarios that would keep traffic suppressed through December 31, 2026.
Arguments
For
- The threshold of 60 7-day average arrivals is modest relative to historical pre-disruption norms, making a qualifying event easier to hit than a full return to peak volumes.
- Economic incentives — shorter voyages and lower fuel/operational costs for Hormuz transits — favor resumption once perceived security costs fall modestly.
- International naval escorts and improved insurance solutions implemented since prior incidents have already lowered risk premia for some operators.
- Temporary fleet repositioning and scheduled charter patterns can create short windows with elevated daily arrival counts that satisfy a 7-day average.
- Portwatch revisions or late data corrections could retroactively produce a qualifying 7-day average within the allowed revision window.
- Large market liquidity and current price levels indicate broad expectation among participants that security and traffic will normalize before year-end.
Against
- Renewed or escalated Iranian maritime harassment or proxy attacks could quickly depress transit counts below the qualifying level for extended periods.
- Sustained high marine insurance premiums and operator risk aversion would keep vessels routed around Africa, reducing Hormuz calls persistently.
- Global demand weakness for oil and bulk commodities could reduce overall shipping volumes sufficiently to prevent any 7-day average from reaching 60.
- A single catastrophic incident or high-profile strike on commercial shipping could reverse recent security gains and deter transit for months.
- If major charterers permanently change routing strategies, the basin may not see a return to prior baseline traffic even if security mildly improves.
- Data publication gaps, methodological changes by IMF Portwatch, or prolonged clerical issues could complicate the appearance or recognition of a qualifying average.
Key drivers
- The contract resolves on any date with a 7-day moving average >= 60, so short-lived rebounds or measurement revisions can produce a Yes outcome.
- Shipping economics (bunker costs, voyage time, and insurance premiums) determine whether operators resume the shorter Hormuz route versus long reroutes around Africa.
- The intensity and frequency of maritime security incidents (Iranian actions, Houthi attacks, or other proxy engagements) directly influence merchant willingness to transit the Strait.
- Multinational naval protection, insurance market responses, and flag-state escorts can materially reduce perceived risk and restore normal routings.
- Global oil and bulk commodity demand and seasonal trade cycles drive baseline vessel volumes independent of security conditions.
- IMF Portwatch reporting cadence, revisions, and any clerical corrections can create or remove qualifying 7-day averages within the market window.
Risk factors
- A large-scale escalation involving Iran or regional actors could force widespread avoidance of the Strait and keep arrivals below 60 for extended periods.
- Persistent Houthi or other proxy attacks on nearby chokepoints could sustain elevated insurance premiums that economically justify long reroutes.
- A global economic slowdown that depresses seaborne oil and bulk demand would reduce baseline transit counts even if security conditions improve.
- Delays, gaps, or errors in IMF Portwatch data publication could postpone or obscure qualifying 7-day averages and affect resolution timing.
- Prolonged sanctions or trade disruptions altering trade flows could permanently reduce transits compared with historical baselines.
- A major shipping industry decision (e.g., coordinated routing changes by large charterers or owners) to avoid the region could keep traffic depressed.
Scenarios
Best case
Diplomatic de-escalation and effective multinational escort operations substantially reduce perceived risk within months, insurance rates fall, operators resume Hormuz routings, and a seasonal or operational uptick pushes a 7-day moving average above 60 well before year-end, producing an early Yes resolution.
Most likely
Security conditions improve incrementally and commercial incentives gradually bring many, but not all, ships back through Hormuz, producing one or more short windows where arrivals spike and a 7-day moving average crosses 60 late in 2026, resulting in a Yes resolution.
Worst case
A major regional escalation or renewed proxy campaign targeting commercial shipping forces long-term avoidance of the Strait, insurance costs remain elevated, and IMF Portwatch never records a 7-day average >= 60 through December 31, yielding a No resolution.
More from this day
- economyPolymarketEnded
Elon Musk Net Worth on July 31?
AI97%MKT3%Edge+94Hidden GemI assess a very high probability that Elon Musk’s Bloomberg-reported net worth will be less than $0.70T on July 31, 2026; I estimate this at about 97% based on typical asset composition and realistic upside scenarios over the next month.
- CompaniesKalshi1y
Starbucks total global stores in 2026
AI85%MKT10%Edge+75Hidden GemStarbucks is very likely to report above 41,800 total global stores in 2026 — the company is already >41,000 and the incremental number required (~800+) is small relative to the planned pace of expansion.
- pop culturePolymarketEnded
"Minions & Monsters" Opening Weekend Box Office
AI33%MKT96%Edge-63HypedI assess a 33% chance that Minions & Monsters will open below $68M for the 5-day July 1–5 weekend, with the balance favoring a solid holiday opening above that threshold driven by franchise strength and the July 4 boost.