Hormuz disruption
Updated
What it is
The Hormuz disruption refers to the extended closure and blockade of the Strait of Hormuz, the narrow waterway between Iran and Oman through which roughly a fifth of the world's oil normally transits, during the 2026 Iran war. Iranian forces declared the Strait 'closed' on March 4, 2026 and began attacking transiting ships, and the U.S. imposed its own naval blockade on April 13, 2026, producing what analysts have called the largest disruption in the history of the oil market.
Why it matters lately
Ship traffic through the Strait fell to a near-standstill in 2026, with only a small number of vessels able to pass (some reportedly paying a 'toll' to the IRGC for safe passage) compared with an average of about 140 vessels per day before the war began on February 28, 2026. The conflict escalated further on September 5, 2026, when the IRGC said it struck six vessels in the Strait and surrounding Gulf waters in direct response to U.S. forces destroying three Iranian oil tankers that day, underscoring that the chokepoint remained contested well into the second half of the year.
Asymmetric Analytics view
Inference (AA): The Hormuz disruption is the central transmission mechanism from the 2026 Iran war into global oil supply, inflation, and the monetary-policy responses (Fed, ECB, BoE) that AA's macro thesis is built around.