President Trump has declared that the deal to reopen the Strait of Hormuz is “largely negotiated”, sending a jolt through a market already on edge from weeks of geopolitical tension. The claim, made live from the White House, was quickly followed by a measured response from the UK Treasury, which sought to reassure oil markets that the situation remains “delicate but improving”.
For those of us who have watched the past few years of Middle Eastern diplomacy, the phrase “largely negotiated” triggers an immediate spike in blood pressure. It is the kind of language that has preceded countless false dawns. Yet the market reaction was telling: Brent crude futures dropped nearly $2 a barrel within minutes of the announcement, a move that suggests traders are desperate for any sign of de-escalation. The Strait of Hormuz, through which about a fifth of the world’s oil passes, has been a choke point that investors have been pricing in risk premium for weeks. Any credible path to reopening it would represent a significant shift in supply expectations.
But let us scrutinise what “largely negotiated” actually means in the context of the Trump administration. We have seen this script before: a bold claim from the White House, followed by a drawn-out implementation phase, or an outright collapse. The UK Treasury’s cautious tone is instructive. Chancellor Jeremy Hunt’s office put out a statement emphasising that “the parameters are being discussed” and that “a final agreement remains subject to verification and enforcement mechanisms.” That is code for: do not book your lower petrol prices just yet.
From a fiscal perspective, the impact on the UK economy is twofold. First, lower oil prices would reduce inflation pressures, giving the Bank of England more room to cut rates. Second, it would ease the cost-of-living crisis that has so battered consumer confidence. Yet Treasury officials privately concede that even if the Strait reopens tomorrow, the supply chain disruptions and insurance costs that have built up over weeks will take months to unwind. The market efficiency we cherish is not restored overnight.
There is also the question of capital flight. British gilt yields have been particularly sensitive to energy price shocks this year, and any sustained decline in oil would likely see a rally in long-dated bonds. But investors will be watching the fine print: if the US administration imposes new conditions, or if Iran plays its usual game of inch-by-inch compliance, the risk premium will snap back into place.
What the markets have priced in is a temporary reprieve, not a permanent solution. The real bottom line is that the Strait of Hormuz remains a strategic asset controlled by a regime that has proven adept at using it as leverage. Until a full, verifiable agreement is signed and implemented, the volatility we saw today is just the first act in a longer drama. The UK government is right to temper its optimism. As any veteran of the City will tell you, when a politician declares a deal “largely done”, it is time to check your exposure to emerging market currencies.
For now, British motorists can breathe slightly easier, but the Treasury’s fiscal forecasts should still be penciled in, not written in stone. The Strait of Hormuz may be reopening, but the market’s faith in the process remains as narrow as the waterway itself.
