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Strait Chokepoints

Sentinel-1 SAR

2026-03-27 19:30 CET

CRITICAL: Hormuz vessel traffic at 136/day (-75.2% vs baseline). Peak drop: -81.4% on Mar 24 (102 vessels). Bab el-Mandeb already at rock-bottom from Houthi attacks (45-60/day vs 3,000+ at Malacca). Suez and Malacca flat.

Source: Global Fishing Watch Sentinel-1 SAR vessel detections

Hormuz Daily Vessels

136
-75.2%

Pre-war avg: 548/day

Bab el-Mandeb

103
-19.9%

Pre-war avg: 129/day

Suez Canal

303
+6.1%

Pre-war avg: 286/day

Malacca Strait

3101
-0.9%

Pre-war avg: 3128/day

Strait of Hormuz — Daily Vessel Count

Sentinel-1 SAR + AIS matched detections | Feb 15 – Mar 27, 2026

-81.4% PEAK DROP

Pre-War Average

548

vessels/day

Current (Mar 27)

136

vessels/day

Change

-75.2%

vs pre-war

Lowest Day

102

Mar 24

Peak Drop

-81.4%

from baseline

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War Risk Insurance Premiums — % of Hull Value Per Transit

Insurance killed Hormuz before the military did. Premiums 0.25% → 10% in 72 hours (40x). VLCC transit cost went from $300K to $12M per crossing.

$12M

VLCC transit cost (peak)

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Hormuz (standard)
Hormuz (US-nexus)
Red Sea
Suez

Suez & Red Sea Detail (lower scale — hidden above due to Hormuz dominance)

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Pre-War (Feb 15)

0.25%

~$300K per VLCC

Day 1 (Feb 28)

0.75%

3x overnight

Day 3 (Mar 2)

5.00%

P&I clubs withdraw

Peak (Mar 9)

10-15%

$12M per VLCC transit

Normalized Traffic Index (Pre-War Average = 100)

Hormuz collapsed 75%. Bab el-Mandeb already depressed from Houthi attacks. Suez and Malacca flat.

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Strait of Hormuz
Suez Canal
Malacca Strait
Bab el-Mandeb

War Impact: Current vs Pre-War Baseline

Red = current level, Orange = peak disruption (worst day)

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Escalation Timeline

Key events driving the disruption

Feb 28War Begins

Iran announces blockade of Strait of Hormuz.

Mar 2Insurance Shock

Major P&I clubs withdraw standard coverage.

Mar 9Cost Peak

Premiums hit 15%; VLCC transits cost $12M.

Mar 24Traffic Trough

Hormuz traffic drops to 102 vessels/day (-81%).

Strait of Hormuz

DISRUPTED

20% of global LNG, 21M bbl/d crude oil transit

136

Current

-75.2%

vs Pre-War

-81.4%

Peak Drop

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Suez Canal

12% of global trade, Mediterranean-Red Sea link

303

Current

+6.1%

vs Pre-War

-11.8%

Peak Drop

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Malacca Strait

25% of global trade, Indian-Pacific ocean link

3101

Current

-0.9%

vs Pre-War

-7%

Peak Drop

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Bab el-Mandeb

DISRUPTED

Red Sea entrance, wider area (already reduced from Houthi attacks since 2024)

103

Current

-19.9%

vs Pre-War

-23.8%

Peak Drop

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