# Current state
IMF PortWatch's 7-day moving average of Hormuz transit calls is currently far below the 60 threshold — reported at roughly 1–5 daily transits in mid-to-late August 2026 (straits.live), against a pre-crisis normal of ~85–107. The strait has been in a state of war-driven closure/blockade since February 28, 2026, with repeated failed ceasefires/MOUs, and no sustained recovery has occurred as of late August 2026.
# Timeline of key events
- 2026-02-28: US/Israel launch air war on Iran; Iran effectively blocks Hormuz shipping, IRGC boards/attacks vessels, lays mines (confirmed – Wikipedia, Britannica).
- 2026-03: Traffic drops >90% from >100/day baseline; further declines after Iranian attacks (confirmed – claude_news synthesis).
- 2026-04-08: Ceasefire/truce; traffic remains ~95% below normal despite pause (confirmed – newsonair.gov.in).
- 2026-04-17/18: Iran briefly declares strait open, closes it again next day over US naval blockade dispute (confirmed – Wikipedia).
- 2026-06-14: US-Iran MOU announced, strait reopened toll-free (confirmed – multiple sources); traffic recovers only partially.
- 2026-07 (early): MOU collapses after Iran strikes three commercial vessels bypassing preapproved routes; effective closure resumes (confirmed).
- 2026-07-17: War-risk insurance premiums reported at 3–10% of hull value, up from 0.25% pre-war (confirmed – The National).
- 2026-08-12 to 08-26: Vessel counts at multi-month lows (1–5/day); Kepler/PortWatch data show sharp slowdown (confirmed – multiple news outlets, straits.live).
- 2026-08-19: Some ships reportedly rerouting via Oman route as Iran claims control of strait (reported – Times of India).
- 2026-08-22: Iran allows some Iraqi oil tankers through (reported – moneycontrol).
- 2026-08-24: Iran blacklists 45 tankers, threatens fines/detention/confiscation for violating transit protocols (confirmed – moneycontrol).
- 2026-08-25: Iran-Oman revenue-sharing arrangement and temporary shipping lane agreed; Iran maintains closure until US meets conditions (reported).
- 2026-08-28: US CENTCOM says Iranian sea mines cleared from shipping lanes (confirmed – multiple outlets), but no traffic surge reported yet.
- 2026-08-30: Straits.live reports Hormuz "closed to commercial shipping," Day 183 of crisis; only ~3 ships transited Aug 23 vs. ~85/day normal (confirmed).
# Event
Will IMF PortWatch's 7-day moving average of Strait of Hormuz transit calls reach ≥60 on any date before December 31, 2026?
# Outcomes to forecast
- Yes (7DMA hits ≥60 at any point before Dec 31, 2026)
- No (never reaches 60)
# Kalshi market anchor
Kalshi-direct pricing was not returned in this research pass (kalshi_related found 0 matching tickers). Best available cross-market anchor is Polymarket's identical-question market: **YES priced at 28.5%**, down from a 90-day high of 90.5%, down 11 pts over 7 days and 29 pts over 30 days, on $10.05M volume — indicating a strong and accelerating drift toward "No."
# Sub-question answers
1. **Current 7DMA vs. 60 threshold** — As of late August 2026, PortWatch shows only 1–5 transits/day (straits.live), meaning the 7DMA is roughly 55-59 points below the 60 threshold — deeply below.
2. **Pre-disruption baseline** — 2025 average 7DMA was 93.7, peaking at 107.3 on Feb 24, 2026 just before the crisis; other estimates put baseline at 73–88. The 60 threshold represents ~55-65% of normal, so "normal" is well above 60, not merely at it.
3. **Cause of deviation** — US/Israel airstrikes on Iran (Feb 28, 2026), assassination of Iran's supreme leader, followed by Iranian mining, vessel boardings/attacks, and a naval blockade. Ongoing and unresolved as of late August 2026 despite periodic diplomatic overtures (claude_news, Wikipedia).
4. **Current trajectory** — Deteriorating/unstable, not recovering: traffic fell from ~85-100/day to 3-5/day; war-risk insurance premiums up 10-40x pre-crisis (0.25%→3-10% of hull value, The National); shippers rerouting via Fujairah/Khor Fakkan/Oman/Jeddah land bridge (Lloyd's List).
5. **Escalation risks** — High: Iran blacklisting 45 tankers with threatened fines/detention/confiscation, parliament-approved fee regime (Strategic Action Plan Article 3), continued attacks (ADNOC vessel hit in August), Iran conditioning reopening on US concessions (multiple sources).
6. **Historical rebound comparison** — Unlike quick post-2019/2025 recoveries, this crisis shows a repeated cycle: ceasefire → partial MOU-driven reopening → collapse within weeks (April truce, June MOU collapse in July). No comparable precedent of full recovery within this pattern.
# Key facts (high-confidence, factual)
1. [straits.live] 7DMA at 1-5 transits/day as of Aug 23-26, 2026, vs. threshold of 60.
2. [Wikipedia/Britannica] Crisis began Feb 28, 2026 with US/Israel strikes on Iran; ongoing blockade/mining since.
3. [The National] War-risk insurance premiums at 3-10% of hull value (vs 0.25% pre-war).
4. [CENTCOM via moneycontrol/gcaptain] Mines cleared from shipping lanes as of Aug 28, 2026 — a potential positive signal, but no traffic recovery yet reported.
5. [Polymarket] Identical-question YES price collapsed from 90.5% high to 28.5%, reflecting realized deterioration.
# Cross-market signals
- Kalshi related: no matching tickers found in this pass.
- Polymarket: Same-question market YES = 28.5%, falling sharply (-11pts/7d, -29pts/30d); sister markets for shorter deadlines (Aug 31, Sep 30) priced near 0-3% YES, confirming market consensus that near-term normalization is essentially dead, with Dec 31 still holding modest residual probability.
- Sportsbook implied: none available.
# Analyst opinions and speculation
- FutureSearch (June 2026, pre-July MOU collapse): modeled long-run probability plateauing at ~80% by Jan 2027 — now stale/outdated given subsequent re-escalation.
- CRS analysis: status quo could persist "as long as US and Iran can bear the costs" — no fixed resolution timeline.
- Claude_news synthesis: bottom line assesses full recovery by Dec 31 as "unlikely absent a major political resolution."
# Directional lean per outcome
- **Yes**: Supported by mine-clearing (Aug 28), Iran-Oman lane agreement, occasional partial reopenings (Iraqi tankers Aug 22), precedent of brief traffic spikes during MOU periods. Opposed by: current level ~55+ points below threshold, entrenched blockade, repeated failed ceasefires, rising insurance costs, active Iranian threats/blacklisting.
- **No**: Supported by 6-month pattern of failed recoveries, deepening structural escalation (Iranian fee/detention regime), Polymarket's steep and consistent price decline, near-zero current traffic. This is the strongly favored outcome per all evidence.
# Gaps / unknowns
- No Kalshi-direct YES price was retrieved this pass; Polymarket used as proxy anchor.
- Impact of Aug 28 mine-clearing on subsequent traffic not yet reflected in data.
- No visibility into most recent (Sept+) PortWatch figures beyond late August.
# Calibration anchors
- Polymarket YES (proxy anchor): 28.5%, trending down.
- Sister Polymarket markets (Aug 31, Sep 30 deadlines) priced at 0.1%-9.5% YES, suggesting near-term resolution is viewed as very unlikely but longer Dec 31 window retains some optionality.
- Historical precedent: 2019 tanker attacks and 2025 Twelve-Day War saw traffic normalize within weeks after ceasefire; 2026 crisis has NOT followed this pattern despite multiple ceasefire/MOU attempts over 6 months.