Bounded and Contested

28 March 2026 | The prospect of $150 oil; EU and Australia move closer; significant AI breakthrough, this week's systemic insights, & recommended reads

In this edition: Signals; systemic insights; what I am reading; and one last thing.

Top Signal: The Prospect of $150 Oil

The most critical geopolitical signal this week comes from the ongoing fragile intersection of geopolitics and energy markets in the Middle East, via social media. Last weekend (while the main financial markets were closed), US President Trump escalated matters by threatening Iran on his social media platform:

“If Iran doesn’t FULLY OPEN, WITHOUT THREAT, the Strait of Hormuz, within 48 HOURS from this exact point in time, the United States of America will hit and obliterate their various POWER PLANTS, STARTING WITH THE BIGGEST ONE FIRST!…”

However, he reversed course on Monday by signalling that he would temporarily hold off on his threat of strikes against Iranian energy infrastructure for five days, citing:

“…VERY GOOD AND PRODUCTIVE CONVERSATIONS REGARDING A COMPLETE AND TOTAL RESOLUTION OF OUR HOSTILITIES IN THE MIDDLE EAST…”

During this five-day freeze, there were also reports of a buildup of US troops towards the region, with the Pentagon reportedly preparing to deploy thousands of troops from the Army’s 82nd Airborne Division, in addition to the thousands of Marines already en route. What they will do when they get there and what that means for the length of this conflict remains to be determined.

• This riding of both horses, receptiveness to talks while reinforcing military deployment, is a classic mix of hard‑power signalling plus diplomatic window‑dressing.

Meanwhile, initial reports out of Iran this week suggest they were not actually in negotiations, with officials there painting the US President’s announcement as “backing down” in a potentially face-saving move.

• During the week, the Iranian foreign minister, Abbas Araqchi, was reported to have said that his country was reviewing a U.S. proposal to end hostilities but still had no intention of holding talks. However, he also reportedly confirmed this week that indirect communications had been exchanged through intermediaries.

How all this plays out to the world matters to both sides, because domestic audiences and regional allies are watching the performance as much as the substance.

The disruption to the supply of oil and gas is the key concern for business, but also for markets, which initially reacted positively to the reprieve. As the week went on, it was still unclear what would happen this weekend (and at the opening bell on Monday) if no agreement was in place by the time this latest US ultimatum expired.

On Thursday, with the war still ongoing, President Trump rolled over his deadline for Iran to open the Strait of Hormuz again by another 10 days (to Monday, 6 April, 8 P.M., ET), citing ongoing talks with Iran that are “going very well”.

It remains a very volatile political situation, and as a result, markets are also likely to remain volatile. The underlying signal is that the situation is erratic and highly uncertain, which is surely stretching investment managers’ resilience.

• What matters most for the global economy is who will ultimately control the Strait of Hormuz and on what terms passage will be allowed. Who will control Iranian oil is also a significant factor.

Interestingly, in a signal of what the marketplace thinks the stakes could be for the global economy,