A U.S. strike on Iran dominated headlines over the weekend as conflict escalated across the region. Difficult to watch on a human level.
Markets were already on edge. Nvidia delivered another textbook beat and raise, yet the stock fell 5.5% on Thursday, its worst single day decline since April 2025. The move dragged down the Nasdaq and S&P 500 alongside broader AI beneficiaries. The week was further punctuated by Block announcing a 40% workforce reduction, a headline that captured attention well beyond fintech.
Global equities once again outperformed the U.S. Utilities led. Financials lagged.
Rates rallied. U.S. 10Y yields fell 14 bps and Canadian 10Y yields declined 9 bps. Commodities and precious metals extended their rally, with oil and gold responding as expected to rising geopolitical risk.
Oil initially spiked 13% higher at the open before grinding lower as investors sold the headline. History offers perspective. Excluding 2020, the largest one day % increases in Brent Crude by close were:
16/09/2019: 14.6% following the Abqaiq attack
06/08/1990: 14.1% after the Kuwait invasion
23/03/1998: 13.8% on an OPEC output cut
07/01/1991: 13.7% during Desert Storm
14/01/1991: 13.6% during Desert Storm
The path forward for oil hinges on the degree of disruption in the Middle East. If the Strait of Hormuz were fully blocked, some estimates suggest prices could move into triple digits. (@KevRGordon)
According to Goldman Sachs, the impact on fair value for a one month disruption to flows through the Strait could look like this:
+$15 for a full one month closure with no offsets
+$12 for a full one month closure using 4 mb/d spare pipeline capacity
+$10 for a full one month closure using spare capacity plus a 2 mb/d SPR release
+$4 for a 50% one month closure using spare capacity
+$1 for a 25% one month closure using spare capacity
The Strait of Hormuz is a critical passage, connecting the Persian Gulf to global markets. Most of the crude flowing through it is destined for Asia.
The Strait is the largest maritime oil chokepoint in the world.
Saudi Arabia, Iraq, and the United Arab Emirates stand to lose the most from shipping disruptions, with a significant portion of exports heading to China (GS)
It is not just crude. Roughly 5 million barrels per day of refined products, including LPG, pass through the Strait. Unlike crude, there are limited alternative pipelines. Strategic reserves outside OECD Europe, Japan, and South Korea are constrained. (@DeItaone)
There are also broader commodity implications. A meaningful share of global seaborne trade in key inputs transits this corridor. It is not all about oil. (@kpler)
Geopolitically, the United States has now intervened in 2 of the 3 countries with the largest proven oil reserves. Some speculate this is about resource leverage versus China, particularly given tensions around rare earth supply chains.
The majority of Iranian oil exports do flow to China. (@zerohedge)
Venezuela and Iran are important suppliers. But oil is fungible. Barrels reroute. Incentives adjust. The idea of permanently controlling flows is far more complex than it sounds. (@AlexanderPayton)
In the short term, positioning and headlines drive price. Over the medium term, resolution of this conflict, spare capacity, SPR policy, and global demand elasticity will matter far more than a single weekend spike. This podcasts provides an hour of discussion on the topic.