Strait of Hormuz traffic returns to normal by September 30?

I take YES. The market still being open as of the 2026-08-23 cutoff implies the IMF PortWatch 7-day moving average of Strait of Hormuz transit calls (Arrivals of Ships) has remained below 60 since market creation, but roughly 5.5 weeks remain until the September 30, 2026 deadline. Historically, Hormuz disruptions have been short-lived: even during the June 2025 Israel-Iran conflict, transits dipped only partially and normalized within weeks, and the strait has never been fully closed for long because Iran, Gulf exporters, and Asian importers all depend on the flow. The ≥60 threshold appears to sit near the strait's ordinary baseline, so only a partial recovery — not full normalization — is needed to trigger a YES resolution, and the rules also count upward revisions within the window. On balance, a return of the 7-day average to ≥60 by September 30 is modestly more likely than not, though I could not verify the live August 2026 data or the specific driver of the current shortfall.

As of the August 23, 2026 knowledge cutoff, the designated IMF Portwatch page for Strait of Hormuz transit data returns a 'Page Not Found' error, and no published 7-day moving average of transit calls at or above 60 has been confirmed for the period up to this point. There is no verified official data showing the threshold has been met so far, and there is no observed prior evidence of the traffic volume recovering to the required level in the published timeframe before the cutoff.

The available evidence indicates significant uncertainty regarding whether the Strait of Hormuz traffic will return to normal by September 30, 2026. While there are reports of potential deals and discussions between Iran and the United States to restore traffic, these agreements are fragile and subject to change. The current situation shows that the海峡 remains largely restricted, with only a few ships passing through daily, far below the required threshold of 60 for a 7-day moving average. Given the volatility of the situation and the lack of concrete evidence of a sustained increase in traffic, it is unlikely that the criteria will be met by the deadline.

As of the 2026-08-23 cutoff, the Strait of Hormuz remains effectively closed to commercial shipping. After US-Israel strikes on Iran (Feb 28, 2026), Iran announced a closure; a June MoU briefly reopened it, but Iran re-closed the strait on July 12, 2026. Independent trackers citing IMF PortWatch show traffic at roughly 1% of pre-crisis levels in mid-August (straits.live, Aug 16/23), and the WTO Hormuz Tracker (June 15) reported the 7-day moving average of transit calls 'remained close to zero' even during the June reopening. The resolution threshold of a 7-day MA >= 60 implies roughly 80% of normal (~70-80 ships/day) traffic sustained for a week. As of the cutoff, Iran and Oman have only a non-finalized 'understanding' on a 60-day reopening framework; US officials say a deal may come 'soon' but none had been operationalized by Aug 23, and prior reopenings failed to restore meaningful traffic. Returning from ~1% of normal to a sustained >=60 MA within ~5 weeks would require a finalized, durable deal plus rapid, war-risk-insensitive resumption of shipping - a high burden given the fragile track record. I therefore assess the criteria are unlikely to be met by Sept 30, 2026.

As of late August 2026, traffic through the Strait of Hormuz remains significantly depressed compared to pre-conflict levels. While recent data from August 18 indicates a structural shift with over 80% of vessels using the safer 'Oman route' to avoid Iranian enforcement zones, the absolute volume of transits has not recovered to the threshold required by the market. Pre-conflict daily transits averaged 125-140 vessels [21][23]. In May, daily transits were reported as low as 9-33 vessels [21][25]. By July, some reports suggested an average of roughly 22 daily transits [31], while others indicated a partial recovery but still well below normal levels [25]. The threshold for this market is a 7-day moving average of 60 transit calls. Given that even optimistic estimates in July placed daily averages around 22-33, and considering the persistent geopolitical tensions, military strikes as recently as July [3], and the cautious stance of major shipping operators who require weeks or months to feel safe resuming full operations [32], it is highly improbable that the 7-day moving average will reach 60 by September 30, 2026. The shift to the Oman route mitigates risk but does not inherently restore volume to pre-war levels amidst ongoing insurance and security concerns.

As of 23 August 2026, IMF PortWatch still shows Strait of Hormuz traffic at collapse levels: the 7-day moving average of transit calls was 3.57 on 16 August, with only one AIS-visible transit that day versus a pre-war baseline near 70–100 ships. Hitting 60 therefore requires roughly a seventeen-fold jump sustained across a full week of AIS-visible throughput. The best post-disruption recovery, after the 17 June U.S.–Iran memorandum, only reached about 25–28 daily transits and then reversed when fighting resumed. Iran’s security leadership said on 22–23 August that the strait remains closed until U.S. policy changes; vessel attacks continued into mid-August; war-risk insurance is about 40 times pre-crisis levels; and several P&I clubs have withdrawn cover. Earlier markets using the same 60-call threshold for June and July deadlines resolved No. A sudden ceasefire-plus-convoy remains possible in the next five weeks, but commercial, insurance, and AIS-reporting constraints make a printed 7DMA of 60 by 30 September unlikely. Position: No.

IMF PortWatch — the sole resolution source — currently shows Strait of Hormuz transit calls in the low single digits: 1 transit on 2026-08-09 versus a pre-crisis baseline of ~73/day, and the IMF series mirror shows a 7-day moving average of ~3.57 on 2026-08-16. The YES threshold of 60 equals ~82% of normal, i.e. near-full normalization. Even the strongest post-war recovery (mid-June to July 7, after the Islamabad MoU and the US blockade lift) peaked at only ~33 commodity transits/day per Kpler before collapsing below 5/day after renewed attacks in July. As of the cutoff, hostilities continue (drone attacks on two ADNOC tankers on Aug 14), the MoU's 60-day free-transit window has just lapsed (~Aug 17), Iran conditions any full reopening on sweeping demands (sanctions relief, US withdrawal, reparations), and Oman-mediated talks remain unfinished. A late-August uptick in alternative AIS/UKMTO counts (~29-36 vessels/day) is still only about half the required level, and PortWatch systematically undercounts even that because ~70% of tankers transit dark and its metric is arrivals-based. With ~5 weeks to Sep 30 and weekly publication lag, reaching a sustained >=60 PortWatch 7-day MA would require a comprehensive, durable US-Iran settlement plus shipowner/insurer return that is not in sight. The exact public source contract prices YES at only ~13.5-14% on $3.3M volume.

As of the knowledge cutoff on 2026-08-23, the 7-day moving average of transit calls ('Arrivals of Ships') for the Strait of Hormuz, as reported by IMF PortWatch, has not reached or exceeded 60. Recent data from multiple sources indicate that daily transit calls remain significantly below pre-crisis levels, with reports of around 1-25 vessels per day in July and August 2026, compared to a pre-crisis baseline of approximately 73-130 vessels per day. The Strait of Hormuz has experienced severe disruptions due to ongoing geopolitical conflicts, resulting in reduced commercial shipping activity.

As of late August 2026, the Strait of Hormuz remains far from normal: UKMTO and tracking reports put traffic at roughly 20% of pre-war levels (about 7-14 ship transits per day, e.g., 14 vessels on Aug 21) versus a pre-war norm near 60/day that the 60 threshold approximates. IMF PortWatch's 7-day moving average of transit calls has been below 60 continuously since the Iran war collapsed traffic in early May 2026, and it must climb roughly 4-6x within ~5.5 weeks to qualify by September 30. The Israel-Iran ceasefire is fragile (mariners were still being killed in the strait on Aug 20-21), Iran has issued demands for a full reopening, and analysts (CNA, Noah News, TradeArabia) expect shipping to remain sub-normal through September with full recovery at least months away. Even the late-August '400% surge' from a very low base and a one-night 40-tanker spike leave the 7-day average far below 60. Prediction markets price the September 30 normalization scenario at only ~12%. I therefore assess NO at roughly 90%.

NO is the most likely outcome. As of August 23, IMF PortWatch's latest reported Strait of Hormuz observation was only 1 transit on August 16, versus a pre-crisis baseline near 73 per day [web:46]. Reaching a 7-day average of 60 would require at least 420 qualifying transit calls in one rolling week—an increase of roughly two orders of magnitude from the latest PortWatch level. Independent contemporaneous indicators also show traffic suppressed: Lloyd's List reported 73 transits for August 10–16, down from 91 the prior week, and described volumes as suppressed by continuing targeting and blockade conditions [web:18]; Reuters reported nine commodity-vessel transits on August 19, unchanged from the previous day amid a deadlocked US-Iran process [web:28]. A sudden reopening could produce a sharp rebound before September 30, but the available evidence makes the required threshold unlikely.

NO. IMF PortWatch data available by the cutoff extend through August 16. Using its published daily totals and trailing seven-day method, I calculate a latest average of 3.57 ships and a post-launch maximum of 22.43, versus the required 60. Reaching the threshold now requires 420 qualifying calls in seven days—16.8 times the latest weekly total—while diplomacy remains stalled and security risks continue. I assign a 7% chance to YES and select NO.

As of August 23, 2026, IMF Portwatch data shows the Strait of Hormuz 7-day moving average of transit calls at just 3.6 vessels (August 16 reading), representing a 95% decline from pre-crisis levels and a 56.4-vessel gap to the 60-vessel threshold. The 60-day US-Iran negotiation window expired on August 17 without a deal, diplomatic tensions remain high, and even in the best-case scenario of an immediate breakthrough, mine-clearing operations and shipping industry recovery would require months, making it virtually impossible to reach the 60-vessel threshold by September 30, 2026.

IMF PortWatch data through 16 August 2026 shows Strait of Hormuz daily transit calls running between 0 and 8 vessels, with the 7-day moving average for 10-16 August at roughly 3.6 (daily values 4, 8, 1, 4, 6, 1, 1). Reaching the 60 threshold would require an approximately 17-fold increase sustained across a full week, within about five and a half weeks. The decisive evidence is that this threshold was not approached even during the most favorable diplomatic windows of the crisis: during the April two-week ceasefire (when Washington publicly stated the strait was set to open for commercial shipping) traffic remained restricted, and during the best week of the post-17 June Trump-Pezeshkian memorandum period the peak daily count was 44 (24 June) with a 7-day moving average of only about 25-30, still less than half the required level, before collapsing again after the 8 July breakdown. Momentum as of the cutoff is toward escalation rather than normalization: Trump announced a sweeping package of economic measures against Iran on 21-22 August, the UAE suspended financial and economic transactions with Tehran after accusing Iran of ballistic missile launches at its territory, and 64-plus vessels had been attacked through 18 August. Iran and Oman have agreed a transit route, but Tehran explicitly conditions any reopening on the US ending its naval blockade of Iranian ports, and Foreign Minister Araghchi has stated an Oman agreement does not itself mean the strait reopens. Even a genuine political breakthrough would face lagging physical constraints: sea mines requiring clearance operations, war-risk insurance repricing, and crew willingness. A full verified reopening could produce a rapid surge given roughly 2,000 ships stranded in the Gulf and large pent-up demand, so the outcome is not impossible, but it requires a compound sequence of low-probability events on a short clock. I assess the probability of Yes at about 5 percent, broadly consistent with prediction-market pricing of 6-9 percent.

As of late August 2026, maritime traffic through the Strait of Hormuz remains severely restricted due to ongoing military conflict and geopolitical tensions in the Middle East. IMF PortWatch data indicates that the 7-day moving average of daily transit calls ('Arrivals of Ships') sits at single-to-low-double digits (around 3 to 11 transits per day), far below the threshold of 60 required for a 'YES' resolution. Earlier prediction markets with deadlines in June, July, and mid-August all resolved to 'NO' as transit calls failed to recover. With approximately five weeks remaining before September 30, 2026, an eight-fold surge in transit calls is highly improbable absent an immediate peace agreement and safety guarantees, giving 'NO' a ~95% probability of resolution.