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Will Strait of Hormuz traffic not return to normal in 2026?

0x990d1d3e4d9b120eafce967dc06753b79aa0a6c6f4a92b528fb31fbb7bdb99be · Financials · 2026-08-22
76%
Agent
72%
Market Price
+5.0%
Edge
68%
Confidence
Volume: 188,946
Spread: 1.0c
Days to resolution: 131
Markets in event: 7
Final Rationale
The same-ticker Polymarket price (71.5% Yes, rising) is the only direct anchor, and it is reinforced by sibling markets pricing <5% odds of normalization by Sept 30, leaving only ~3 months of runway. Fundamentals strongly favor Yes: current transits of ~6-13/day are 10-20% of the 60/day threshold, war-risk premiums remain 12-40x pre-war and not easing, Iran's Persian Gulf Strait Authority structurally alters transit, and there are no active US-Iran talks. The critique's strongest point is that the resolution bar is a single 7DMA crossing, not durable recovery — the late-July spike to 84 transits/week shows latent snap-back capacity, and a passed Iran-Oman deal could plausibly produce a rapid Q4 surge; this keeps meaningful weight on No and prevents pushing far above the market. Data-source discrepancies (Lloyd's List vs straits.live vs PortWatch) add uncertainty in both directions but do not change the central judgment. I settle marginally above the Polymarket price for the shrinking window, but below both forecasters given the easier-than-full-recovery threshold.
Price vs. prediction
How the market moved after the agent's call. Solid blue line is the actual market price; dashed line is the agent's static forecast at $t{=}0$.
$n = 12$ follow-ups
Re-scan Context
This market has been scanned before. Previous predictions:
DatePredictedMarket PriceConfidence
2026-08-15 67% 56% 60%
1. Planner Opus · Fermi decomposition + tool plan
Tools chosen: polymarket_direct polymarket_related kalshi_related claude_news gdelt_news wikipedia code_execution
Sub-questions (Fermi decomposition)
  1. What is the current IMF PortWatch 7-day moving average of daily transit calls (arrivals of ships) for the Strait of Hormuz, and how far below/above 60 is it?
  2. What was the historical baseline of that series in 2023-2025 — how frequently did the 7-day MA exceed 60, and what was its typical range?
  3. What event caused the disruption (Iran-Israel/US conflict, mining, insurance withdrawal, closure threat) and what is its current status as of now?
  4. What is the trend in the last 30-60 days — is traffic recovering steadily toward 60, plateauing, or falling further?
  5. What do war-risk insurance rates, tanker charter rates, and shipowner behavior suggest about the speed of a return of transits to pre-conflict volumes?
  6. What do the sibling Polymarket monthly markets (which month traffic returns to normal) and any Kalshi analogues imply about the implied probability of no qualifying data point in 2026?
Planner reasoning
This is a Polymarket question resolving off IMF PortWatch daily 7-day moving average transit calls for the Strait of Hormuz (threshold ≥60). The key empirical inputs are: the current and recent level of the 7-day MA, the historical baseline (how often the series sits above 60 in normal times), and the geopolitical state of the strait (any Iran conflict, mining, closure, or shipping boycott suppressing traffic). Market price on Polymarket, plus any sibling monthly markets in the same event series, gives the crowd anchor.
2. Research Parallel tool calls
ToolStatusTimeItemsSummary
polymarket_direct OK 0.3s 1 ## This Market's Polymarket Data **Will Strait of Hormuz traffic not return to normal in 2026?** - Current price (probability): 71.50% - 7-day price change: +14.00% - 30-day price change: +23.00% - Total volume: $188,946 (USD notional) - Price range: 35.00% - 71.50% - Data points: 46 days
polymarket_related OK 2.0s 10 Scanned 100 active Polymarket markets, kept 10 matches. keyword 'Strait of Hormuz': 2 markets | keyword 'Hormuz traffic': 0 markets | keyword 'Iran': 8 markets | keyword 'oil shipping': 0 markets
kalshi_related OK 1.8s 0 0 related markets / summaries. keyword 'Strait of Hormuz': no matches | keyword 'Iran': no matches | keyword 'oil price': no matches
claude_news OK 29.7s 17 ## Key Findings - **Ongoing crisis, not resolved**: The 2026 Strait of Hormuz crisis began Feb 28, 2026 when the strait is 34 kilometres (21 mi) wide at its narrowest point, forming a seaway passage between Iran and Oman, with two unidirectional sea lanes facilitating transit of around 20 million
gdelt_news OK 169.7s 36 GDELT: 36 articles across 4 queries (lookback=45d). 'Strait of Hormuz shipping traffic transits': 12 hits | 'Hormuz tanker traffic recovery': error GDELT rate-limited after retries (429) | 'Iran Strait of Hormuz closure mines': 12 hits | 'war risk insurance Gulf tankers': 12 hits
wikipedia OK 0.2s 2 Fetched 2 Wikipedia entries (0 missing pages).
code_execution OK 24.7s 0 ## Findings — Strait of Hormuz Traffic Recovery Model **Model setup:** 3 recovery scenarios (fast p=0.60/mo, slow p=0.20/mo, stalled p=0.05/mo hazard of crossing the "normal" 60-transit threshold on any given month), base-case weights (fast 30%, slow 50%, stalled 20%), and ~14 months remaining (ass
3. Evidence Brief Sonnet · 8099 chars
# Current state The Strait of Hormuz has been disrupted since the Feb 28, 2026 outbreak of the Iran-Israel/US war; as of Aug 19-20, 2026, IMF PortWatch-style transit counts remain far below the ~60-140/day pre-war baseline (recent weekly counts ~73-91 vessels/week, i.e., ~10-13/day by some trackers, though methodology varies). No qualifying 7-day MA ≥60 has been reported. Resolution requires PortWatch's own 7-day MA to hit ≥60 on any date before Dec 31, 2026; currently no durable ceasefire, and Iran/Oman "reopening" talks remain unresolved/collapsing. # Timeline of key events - 2023-2025: Baseline period — 7DMA averaged ~93.7 in 2025, commonly cited pre-war range 60-140/day (confirmed, RAND/PortWatch). - 2026-02-24: Pre-crisis peak, 7DMA at 107.3 (confirmed, RAND). - 2026-02-28: War/crisis begins; US/Israeli strikes on Iran, Iranian retaliation with mines/attacks (confirmed, Wikipedia/CFR). - 2026-03 (late): Traffic collapses to 7DMA low of 2.7 (confirmed, RAND). - 2026-04-19: 7DMA at 12.0, still far below normal (confirmed, RAND). - 2026-06-23: Iranian Parliament Speaker Qalibaf states Strait management "will never return to the way it was before the war"; Iran establishes "Persian Gulf Strait Authority" requiring passage permits (reported, CRS). - 2026-07-08 to 07-28: Continued low traffic, insurance surges (3-10% of hull value vs 0.25% pre-war), Iran rejects Oman reopening proposal, insists on wartime control (reported, multiple outlets). - 2026-08-01 to 08-06: Brief uptick (84 transits July 27-Aug 2, up from 45 prior week); NPR reports "partial reopening appears close" via Iran-Oman deal (banning US/Israeli ships, 7% cargo fee) still under Iranian parliamentary review (reported). - 2026-08-10 to 08-19: Traffic falls back — 73 transits (Aug 10-16) down from 91 prior week; NBC/CNN confirm traffic "nowhere near" pre-war 100+/day; Trump states no talks with Iran, blockade remains "in full force" (confirmed/reported, Lloyd's List, NBC, CNBC, Chicago Tribune). - 2026-08-19-20: Reports of Iran "losing control" of Strait yet traffic remains subdued/unchanged amid US-Iran stalemate (reported). # Event Will the IMF PortWatch 7-day moving average of Strait of Hormuz transit calls fail to reach ≥60 for any month in 2026 (i.e., "no return to normal traffic")? # Outcomes to forecast - Yes (no qualifying month in 2026 — traffic does NOT return to normal) - No (a qualifying month occurs — traffic DOES return to normal at some point in 2026) # Kalshi market anchor No direct Kalshi data returned (0 related markets found via kalshi_direct/kalshi_related tools in this research pull). Primary cross-market anchor is Polymarket's identical-ticker market. # Sub-question answers 1. **Current 7DMA level vs 60**: Precise PortWatch figure not directly retrieved, but proxy trackers show ~73 transits/week (≈10-13/day 7DMA-equivalent) as of Aug 10-16, 2026, and other trackers cite near-total closure (1 vessel on Aug 16 per straits.live). All far below 60. [Lloyd's List, straits.live] 2. **2023-2025 baseline**: 7DMA averaged ~93.7 in 2025, peaked at 107.3 just before the war (Feb 24, 2026); commonly cited normal range 60-140/day — so 60 is near the low end of "normal." [RAND Forecasting Initiative] 3. **Cause/status**: 2026 Iran-Israel/US war (began Feb 28, 2026) with US/Israeli strikes, Iranian mining and attacks on shipping, and Iran's new "Persian Gulf Strait Authority" requiring transit permits. As of Aug 18-19, no active talks between US and Iran; naval blockade remains "in full force" per Trump. [Wikipedia, CRS, Chicago Tribune] 4. **30-60 day trend**: Volatile/oscillating, not steadily recovering — brief uptick late July (45→84 transits/week) reversed by mid-August (91→73 transits/week); described as "whiplash" pattern, not sustained trajectory toward 60+. [NBC, Lloyd's List] 5. **Insurance/shipowner behavior**: War-risk premiums surged to 3-10% of hull value (from 0.25% pre-war) as of July 2026 and IMO states "market pricing is not adjusting as conditions improve" — signals shipowners/insurers do NOT expect fast normalization. [The National, IMO] 6. **Sibling markets**: Polymarket "returns to normal by Aug 31" priced at 0.35% YES; "by Sept 30" at 4.5% YES — both imply near-certainty traffic will NOT normalize by those dates, consistent with sustained disruption through at least Q3 2026. [Polymarket] # Key facts (high-confidence, factual) 1. [RAND] 2025 baseline 7DMA ~93.7; pre-crisis peak 107.3 (Feb 24, 2026); crisis low 2.7 (late March); 12.0 (Apr 19). 2. [CRS] Iran created "Persian Gulf Strait Authority" requiring passage permits; disruption persisted for ~5 months as of early August 2026. 3. [The National/IMO] War-risk insurance premiums remain 12-40x pre-war levels as of July 2026, not adjusting downward despite periods of calm. 4. [NPR] Iran-Oman reopening deal (banning US/Israeli vessels, 7% cargo fee, 20% fine) still pending Iranian parliamentary approval as of Aug 6, 2026. 5. [Lloyd's List/NBC] Weekly transit counts oscillating between ~45-91 vessels/week (roughly 6-13/day) through mid-August 2026, far below 60/day threshold. # Cross-market signals - **Kalshi related**: none found. - **Polymarket (same-ticker)**: Current YES ("not return to normal") = 71.5%, up sharply from 35% a month ago (+23pp/30d, +14pp/7d) — strong recent momentum toward "Yes." - **Polymarket sibling markets**: "Returns to normal by Aug 31" = 0.35% YES; "by Sept 30" = 4.5% YES — both imply <5% chance of near-term normalization, reinforcing persistent disruption view. - **Related Iran markets**: "US ceasefire continues through Aug 31" = 86.5%; "through Sept 15" = 73.5% — ceasefire seen as fragile but currently holding, yet holding ceasefire ≠ traffic normalization (CFR notes recovery lags even with ceasefire due to mines/insurance/distrust). # Analyst opinions and speculation - CFR: full recovery will take "years, not months"; even a holding ceasefire leaves mines, infrastructure damage, transit fees, and insurance as multi-year drags. - CFR: current ceasefire "on the verge of collapse," further threatening any recovery prospect. - code_execution model (base case, generic hazard-rate assumptions, NOT calibrated to actual current low levels or reconciled with 71.5% Polymarket price) estimates ~12% probability of "No return" — this conflicts sharply with the market price and appears to underweight persistence/serial correlation and use stale market comparison (35% vs actual 71.5%); treat with low confidence. # Directional lean per outcome - **Yes (no return to normal)**: Strongly supported — current levels ~10-15% of 60 threshold, no ceasefire/reopening deal finalized, insurance markets pricing sustained risk, Iran's PGSA structurally altering transit regime, Polymarket up to 71.5% and rising, sibling near-term markets near 0-5% YES for normalization. - **No (returns to normal)**: Weak support — only the abstract code-model (uncalibrated) and the theoretical possibility of rapid diplomatic breakthrough (Iran-Oman deal, ceasefire holding) could push levels up quickly; historical baseline shows 60 is achievable quickly once conflict resolves, but no evidence of imminent full resolution. # Gaps / unknowns - No direct Kalshi YES price was retrievable for this exact ticker — Polymarket is the only same-market cross-reference. - Precise current PortWatch 7DMA figure not confirmed (proxies vary widely: 10-13/day vs near-zero per straits.live). - Reconciliation needed between Lloyd's List (~10-13/day) and straits.live (~1/day) methodologies. - Trajectory of Iran-Oman deal/parliamentary approval unresolved — could be a rapid catalyst if passed. # Calibration anchors - Polymarket YES (same market) = 71.5%, trending up (+23pp/30d) — primary anchor given no Kalshi data. - Sibling "return by Aug 31/Sept 30" markets near 0-5% YES — strongly reinforces near-term persistence. - Precedent: past Hormuz threats/tensions (2019, 2011-12) never produced sustained closure this long; current disruption already ~6 months (Feb-Aug 2026) is unprecedented, raising the bar for "normal recovery" base rates.
4. Forecasters Opus + GPT · in parallel
claude-opus-5
0.68
Yes 78%
No 22%
The only same-market anchor (Polymarket, identical ticker) prices 'no return to normal' at 71.5% and rising sharply (+23pp/30d), and sibling markets for normalization by Aug 31/Sept 30 sit at 0.35%/4.5% YES, implying near-certain persistence through Q3. Current transit levels (~6-13/day vs the 60/day threshold) are roughly 10-20% of the required level, war-risk premiums remain 12-40x pre-war and not adjusting downward, Iran's new Persian Gulf Strait Authority structurally alters the transit regime, and there are no active US-Iran talks with the blockade 'in full force.' Only ~4.5 months remain for a full diplomatic resolution plus mine clearance plus insurance normalization plus a durable 7DMA rebound to 60 — CFR judges recovery 'years, not months.' I nudge slightly above the Polymarket price for the shrinking window, but leave meaningful weight on 'No' because the pending Iran-Oman deal (parliamentary review) is a live catalyst and transits did briefly spike to 84/week, showing latent capacity to snap back quickly if hostilities end.
gpt-5.5
0.67
Yes 76%
No 24%
Current proxy traffic is only about 10-13 vessels/day versus the 60/day threshold, which points toward Yes because normalization would require a roughly fivefold-plus increase from August levels. The baseline evidence shows 60/day is merely the low end of normal, but the cause/status evidence—ongoing Iran-Israel/US conflict effects, Iran's new passage authority, no durable US-Iran talks, and unresolved Oman/Iran reopening talks—points toward continued disruption. The 30-60 day trend and insurance evidence also point toward Yes because the late-July uptick reversed and war-risk premiums remain 12-40x pre-war levels, suggesting shipowners are not pricing a rapid return. With no direct Kalshi price available, I anchor on the same-ticker Polymarket Yes price of 71.5% and move modestly higher because sibling markets imply almost no normalization by Aug 31 or Sept 30, leaving only Q4 for a major diplomatic and operational turnaround.
5. Devil's Advocate Sonnet · red-team critique
1. Both forecasts converge tightly (0.78/0.76) around the Polymarket anchor without independently stress-testing the "4.5 months remaining" scenario space—neither models the probability that even a rapid ceasefire/deal (Iran-Oman) could produce a transient 7DMA spike ≥60 that satisfies the "any date" resolution criterion, which is a lower bar than "sustained normalization" and may be underweighted given the brief explicitly notes traffic already spiked to 84/week transiently. 2. Neither forecast grapples with the resolution mechanics ambiguity: the event asks for 7DMA ≥60 "for any month" / "on any date," which is a much easier bar than full recovery — a brief surge from a deal announcement (even one that later collapses) could technically trigger No, and CFR's "years not months" framing for full recovery is a mismatch for this easier threshold-crossing question. 3. Both anchor almost entirely on Polymarket's 71.5% and adjust only slightly upward, but neither seriously interrogates why Polymarket rose from 35% to 71.5% in 30 days — if that move was driven by short-lived bad news (e.g., the Aug 10-19 reversal) rather than structural change, the forecasts may be over-anchoring on recency/momentum rather than the ~4.5-month runway still available. 4. Neither critiques the discarded code-execution model (12% Yes... actually 12% "No return" probability, i.e., quite low Yes) with enough rigor — they dismiss it as "uncalibrated" but don't explain why base-rate hazard models are wrong here beyond citing the stale Polymarket comparison, leaving open whether the market itself could be overreacting to recent stalemate headlines. 5. Both treat the Iran-Oman deal as a minor upside caveat ("live catalyst") but the brief notes NPR reported "partial reopening appears close" in early August — if parliamentary approval happens even briefly in Q4 with eased restrictions, transit could rebound faster than the 5-13/day trajectory suggests, and this scenario deserves more explicit probability weight than a passing mention. 6. Neither forecast addresses the data-source discrepancy (Lloyd's List ~10-13/day vs straits.live ~1/day) which could materially affect how close current levels actually are to any potential rebound trajectory, nor do they discuss whether IMF PortWatch's own methodology (the actual resolution source) aligns with either proxy — this data uncertainty is glossed over rather than treated as a forecasting risk.
6. Aggregator Opus · final calibrated forecast
76% (68% confidence)
Yes: 76% No: 24%
The same-ticker Polymarket price (71.5% Yes, rising) is the only direct anchor, and it is reinforced by sibling markets pricing <5% odds of normalization by Sept 30, leaving only ~3 months of runway. Fundamentals strongly favor Yes: current transits of ~6-13/day are 10-20% of the 60/day threshold, war-risk premiums remain 12-40x pre-war and not easing, Iran's Persian Gulf Strait Authority structurally alters transit, and there are no active US-Iran talks. The critique's strongest point is that the resolution bar is a single 7DMA crossing, not durable recovery — the late-July spike to 84 transits/week shows latent snap-back capacity, and a passed Iran-Oman deal could plausibly produce a rapid Q4 surge; this keeps meaningful weight on No and prevents pushing far above the market. Data-source discrepancies (Lloyd's List vs straits.live vs PortWatch) add uncertainty in both directions but do not change the central judgment. I settle marginally above the Polymarket price for the shrinking window, but below both forecasters given the easier-than-full-recovery threshold.
Pipeline Timing
Total pipeline time: 272.5s
Per-tool research timings shown in the Research section above.