# Current state
The Strait of Hormuz has been effectively closed to routine commercial shipping since a Feb 28, 2026 US/Israel-Iran war and Iranian mining/attacks; a US naval blockade (imposed Apr 13, briefly lifted after a June 17 ceasefire MoU, reimposed in July after the MoU broke down) compounds the closure. As of Aug 5, 2026, transit calls remain near zero (2 ships/day on Aug 2 vs. ~88-107/day pre-crisis baseline), far below the 60-call 7DMA threshold this market requires. Resolution depends on IMF PortWatch data alone, not general "normalization" sentiment.
# Timeline of key events
- 2026-02-28: US/Israel launch operations against Iran; Iran mines strait, IRGC bans transit, attacks merchant ships — traffic collapses (confirmed, Wikipedia/multiple).
- 2026-03 (late): 7DMA transit calls trough at 2.7 (confirmed, RAND).
- 2026-04-13: US begins naval blockade of Iranian ports, creating "dual blockade" (confirmed, multiple).
- 2026-04-19: 7DMA at 12.0 (confirmed, RAND).
- 2026-04 (unspecified): US begins de-mining operations (reported, The Hill).
- 2026-06-17: US-Iran ceasefire MoU signed, partial reopening begins (confirmed, multiple).
- 2026-06-24/25: 7DMA reaches "high watermark" of 51-52 before Iran "soft closes" strait again (confirmed, RAND/Kalshi).
- 2026-07-07/08: Renewed US-Iran strikes; 3 vessels struck (incl. Qatari LNG carrier); tanker traffic collapses again (confirmed, multiple).
- 2026-07-13: US naval blockade reimposed after MoU collapse; CENTCOM redirects 44 vessels, disables 2, boards 2 (confirmed, CNN).
- 2026-07-21/22: Transits plummet ~66%; only 59 India-bound vessels transited since war began (reported, GDELT).
- 2026-07-23: War-risk insurance at 7.5-10% of hull value (vs. 1-3% pre-war) (confirmed, Al Jazeera).
- 2026-07-27/28: US-Iran fighting pauses over weekend; oil dips 5%; Oman proposes joint-control/voluntary-fee management mechanism for strait (reported, multiple outlets).
- 2026-07-30: Strait "effectively closed" to routine shipping (reported, Carra Globe).
- 2026-07-31: Vessel transits hit two-week high as LNG traffic resumes (reported, S&P Global via ANI).
- 2026-08-02: Only 2 ships transit (vs. ~73/day normal) (confirmed, straits.live).
- 2026-08-03/04: UKMTO reports projectile strikes near Khasab, Oman; Iran weighs allowing Europe to clear mines (reported, Bloomberg/Windward).
- 2026-08-04/05: Iran-Oman talks on safe shipping route "constructive"; coordinates for safe route agreed; Trump says reopening "soon" (reported, CNN/Moneycontrol).
# Event
Will IMF PortWatch's 7-day moving average of Hormuz transit calls reach ≥60 on any date before Sept 30, 2026?
# Outcomes to forecast
- Yes (7DMA ≥60 achieved by Sept 30, 2026)
- No (never reaches 60)
# Kalshi market anchor
No Kalshi-direct data returned (kalshi_related found 0 matches for "Hormuz"/"Iran"/"oil"). Primary cross-market anchor is **Polymarket: 31.5% Yes**, up sharply (+16pts, 7-day), roughly flat over 30 days; historical range 15.5%-60%; volume $2.04M across 35 data points — indicating meaningful, somewhat volatile trading interest with no unusual thinness.
# Sub-question answers
1. **Most recent 7DMA / baseline** — Baseline ~88-107 calls/day pre-crisis (peaked 107.3 on Feb 24, 2026); as of Aug 2, 2026 traffic is ~2 ships/day, effectively near zero. [claude_news/RAND/straits.live]
2. **Cause / current status** — Combined Iranian mining/attacks/transit bans (since Feb 28) plus a reciprocal US naval blockade of Iranian ports (Apr 13-present, briefly lifted then reimposed July). Strait is militarily contested and under active blockade, not merely elevated insurance. [Wikipedia, CNN, RAND]
3. **Trend (last 2-6 weeks)** — Volatile and non-monotonic: brief spike to 7DMA ~51-52 (June 24-25) after ceasefire MoU, then collapse to near-zero after July 7-8 renewed strikes; late-July saw a partial two-week-high LNG-driven uptick before falling again by Aug 5. No sustained climb toward 60 evident. [RAND, GDELT, NBC]
4. **De-escalation/negotiation efforts** — Active: Iran-Oman talks reached agreement on safe-route coordinates (early Aug); Iran considering allowing European mine-clearance; Trump claims reopening "soon." No finalized, durable deal as of Aug 5. [CNN, Bloomberg]
5. **Analogous recovery precedents** — Not directly answered in research; general chokepoint literature (Bab el-Mandeb) not detailed here. Wikipedia notes Hormuz had never been closed for an extended period in prior Mideast conflicts, making this an unprecedented case with no clean analog cited.
6. **Cross-market pricing** — Polymarket same-market: 31.5% Yes. Related Polymarket markets: Aug 15 deadline "normal by" at 1.9% Yes (nearly dead), Aug 31 deadline at 18.5% Yes, Dec 31 deadline at 62.5% Yes — showing probability rising monotonically with more time, consistent with a slow-recovery/persistent-blockade base case. "US ends Iranian blockade by Aug 15" priced at 66% Yes (different resolution criterion, more lenient).
# Key facts (high-confidence, factual)
1. [RAND/Wikipedia] Pre-crisis baseline 7DMA ~88-107 calls/day; crisis began Feb 28, 2026.
2. [claude_news/straits.live] As of Aug 2, 2026, only 2 ships transited (vs ~73-88/day normal) — traffic at ~2-10% of baseline.
3. [RAND] 7DMA briefly reached 51-52 on June 24-25, 2026 — the closest approach to the 60 threshold on record — before collapsing again.
4. [CNN, Bloomberg] Iran-Oman safe-route talks and mine-clearance discussions ongoing but unfinalized as of Aug 5, 2026.
5. [Al Jazeera] War-risk insurance still 7.5-10% of hull value vs 1-3% pre-war.
# Cross-market signals
- Kalshi related: none found.
- Polymarket (same event): 31.5% Yes, volatile (range 15.5-60%), +16pt week-over-week jump likely reflecting Oman/Iran de-escalation talks news.
- Polymarket (adjacent horizons): Aug 15 deadline 1.9% Yes, Aug 31 deadline 18.5% Yes, Dec 31 deadline 62.5% Yes — confirms probability scales with time horizon, consistent with slow-grinding-recovery base case rather than imminent snap-back.
- Sportsbook implied: N/A (not applicable to this event type).
# Analyst opinions and speculation
- claude_news synthesis: "a full return to the ~60+ 7DMA threshold by September 30, 2026 appears unlikely absent a durable resolution" — leans No given repeated ceasefire-breakdown cycles.
- CFR: structural obstacles (mines, infrastructure damage, mistrust) suggest recovery will be slow even post-deal.
- code_execution Monte Carlo (placeholder inputs, not calibrated to confirmed Aug data): blended P(Yes) range 0.07-0.84 depending on assumed current MA/horizon; mid-case (MA~40, 20 weeks) ≈0.34, closely matching Polymarket's 31.5%.
- Trump (Aug 5, per CNN): says reopening "soon" — optimistic but no confirmed deal.
# Directional lean per outcome
- **Yes**: Supported by active Oman-mediated safe-route agreement, Iran weighing European mine-clearance, Trump's optimistic rhetoric, precedent that 7DMA already touched ~51-52 once (close to 60), and ~8 weeks remaining before close (long enough for a single-day spike given "any date" resolution wording).
- **No**: Supported by current near-zero traffic (2 ships/day Aug 2), repeated ceasefire-collapse cycles (June MoU failed within 3 weeks), active mines/attacks persisting into early August, elevated insurance costs, no finalized deal, and consistently low Polymarket pricing across nearer-term deadlines (Aug 15/31 both far below 50%).
# Gaps / unknowns
- No confirmed exact 7DMA value for early August (research cites Aug 2 single-day count of 2, not 7DMA).
- No Kalshi-direct price was returned for this specific ticker — anchor relies solely on Polymarket.
- Unclear whether Oman safe-route deal, if finalized, would produce rapid (days) or gradual (months) traffic ramp-up.
- No historical Bab el-Mandeb/tanker-war recovery-speed data was retrieved despite being requested.
# Calibration anchors
- Polymarket YES price (anchor): 31.5%, recent range 15.5-60%, volume $2.04M.
- Adjacent Polymarket deadlines: Aug 15 (1.9%), Aug 31 (18.5%), Dec 31 (62.5%) — probability rises with time, implying market views recovery as gradual, not imminent.
- Precedent: 7DMA peaked at only 51-52 once in ~5 months of crisis (June 24-25) before relapsing to near-zero — the "60" bar has never yet been reached.