Crude markets have reacted sharply to threats surrounding the Strait of Hormuz, the strategic channel through which roughly 20% of global oil supply passes.

An Iranian Revolutionary Guard commander has reportedly declared the route closed and warned that vessels attempting to cross could face attack.

In response, Brent crude has surged above $87 per barrel after gaining more than 9% in a single session. West Texas Intermediate has climbed beyond $83, up over 8%, representing one of the steepest short-term advances in more than a year.

McLaughlin says the implications extend well beyond energy traders.

“When oil jumps at this pace, inflation pressures intensify quickly,” he explains. “Energy costs filter through transport, manufacturing, food production and household bills. A sustained move toward $90 Brent materially shifts the inflation outlook and forces markets to reconsider how soon interest rates can fall.”

He notes that many investors had positioned portfolios for an easing cycle during 2026. “Expectations for lower borrowing costs are being challenged,” McLaughlin says.

“An energy-driven inflation shock reduces the scope for rate cuts and increases the likelihood that monetary policy remains restrictive for longer.”

Higher fuel and logistics costs typically feed first into headline inflation before influencing wages and corporate pricing strategies.

“Central banks monitor this transmission mechanism closely,” he notes. “If inflation expectations start to move higher again, policymakers will act firmly to maintain credibility.”

For investors, the consequences are immediate. “Bond yields are already adjusting to reflect less confidence in near-term rate reductions,” McLaughlin states.

“Longer-duration bonds become more vulnerable in this setting, as persistent inflation erodes real returns.”

Currency markets are also responding. “Periods of geopolitical stress combined with rising inflation risk tend to support the US dollar,” explains the wealth guru.

“Capital is rotating into dollar-denominated assets, including short-term Treasuries, as investors prioritise liquidity and yield.”

Equities face a more complex landscape. Rising input costs can squeeze margins for businesses unable to pass expenses on to consumers.

“Companies with strong pricing power and solid balance sheets are better placed,” McLaughlin notes. “Others may see earnings forecasts revised downward if elevated energy costs persist.”

He cautions against assuming a swift resolution to the conflict. “Disruption to one of the world’s most critical energy corridors introduces structural uncertainty,” McLaughlin observes.

“Investors should prepare for the possibility that oil prices remain elevated for months rather than days.”

Europe and large parts of Asia are particularly exposed to imported energy inflation, he adds. “Sustained high crude prices could complicate efforts to control inflation while weighing on growth. Diverging policy responses between major economies may also amplify currency volatility.”

McLaughlin argues that portfolio discipline is essential in the current environment. “Investors should reassess asset allocation, evaluate exposure to energy-sensitive sectors and consider instruments that can help mitigate inflation risk,” he says.

“Stress-testing portfolios against higher-for-longer rate scenarios is prudent.”

He concludes with a clear message for expatriate investors in Portugal and beyond. “Oil’s surge is a reminder that geopolitical risk can quickly reshape the macroeconomic outlook. Preparing for sustained inflation pressure and elevated interest rates is critical to protecting long-term wealth.”

If you wish to contact Jake about your investments, you can email him here jake.mclaughlin@devere-portugal.pt