titleDuration Dominates Scale
sourceJPMorgan — Rigzone (Natasha Kaneva), May 13, 2026
date2026-05-13

Key Claims

  1. A temporary shock, even a large one, can be absorbed. A prolonged disruption cannot.
  2. This is not price-led demand adjustment; demand is being removed through availability constraints
  3. Barrel redistribution — dislocation showing up in refined product cracks, allowing crude benchmarks to remain lower
  4. First time in recorded history (1,000+ years) the Strait has been effectively closed

Category: Structural

Source: JPMorgan Global Commodities Strategy (Natasha Kaneva), via Rigzone, May 13, 2026

Description

JPMorgan's core analytical principle for the Hormuz crisis: the duration of the disruption matters more than its initial scale. A temporary shock, even a large one, can be absorbed through inventory drawdowns, demand destruction, and supply rerouting. A prolonged disruption cannot — the adjustment mechanisms are exhausted, and the market enters a phase transition.

Key Mechanism

  1. Temporary shock: Market absorbs through inventories, SPR, demand destruction, supply rerouting
  2. Prolonged disruption: Adjustment mechanisms exhausted → "tank bottom" → physical market failure
  3. The turning point: Not when the shock hits, but when the adjustment mechanisms run out

Why This Matters

Most market analysis focuses on the scale of disruption (11-13 mb/d). JPMorgan argues this is the wrong variable — the right variable is duration. The same 11-13 mb/d disruption has vastly different outcomes depending on whether it lasts 2 months vs. 6 months.

Implications

Relationship to Other Concepts

duration-dominates-scale.md