FTSE 100 today: Stocks drop as Hormuz tanker hit, Aramco cuts Europe supply

European equities fell sharply as a tanker strike in the Strait of Hormuz and Saudi Aramco's reported halt of crude allocations to at least two European refiners intensified concerns over oil-supply disruption from the U.S.-Iran conflict. The FTSE 100 fell 1.5%, the DAX lost 1.6% and the CAC 40 declined 1.5%, while Brent held near $104.46/bbl and gold rose 0.58% to $4,366.91/oz on haven demand. Central-bank developments were mixed: the Bank of England paused gilt sales until April 2027, while the Bank of Japan raised rates 25bps.

Analysis

The more actionable dislocation is the unusually narrow Brent-WTI spread rather than outright crude direction. Seaborne Middle East disruption should preferentially raise marginal-barrel pricing for Europe and Asia, while U.S. inland supply remains relatively insulated; a sustained logistics premium would pressure European refining utilization and petrochemical margins before it fully reaches consumer inflation. BP and SHEL should outperform the FTSE on upstream cash-flow sensitivity, while European transport, discretionary and refinery-exposed equities face a weaker earnings-revision cycle over the next 1-3 months.

UK financials are vulnerable to a stagflationary mix: energy-driven inflation limits rate-cut expectations, but risk-asset weakness widens credit spreads and reduces mortgage/consumer-credit demand. BCS and LYG have the clearest downside through credit-cost normalization and weaker loan growth; PUK, LGEN and AV. add exposure to equity-market/AUM weakness and spread volatility. The gilt-supply change is a partial offset by suppressing long-end term premium, but it does not neutralize credit or solvency stress if oil remains above $100 for a full quarter.

Consensus may be too focused on the immediate equity risk-off move and too sanguine on physical availability. A rapid restoration of infrastructure can ease headline anxiety, yet refiners need replacement cargoes and altered shipping patterns, creating a lagged squeeze in regional cracks and freight. Conversely, the thesis fails if Brent falls below $98 without a widening Brent-WTI spread, signaling that barrels are moving normally and geopolitical risk is not translating into a sustained physical shortage.

Key Decisions for Investors

• Initiate a 1-3 month long Brent / short WTI spread position; target a $4-6/bbl Brent premium from the current compressed spread, with a stop if the spread remains below $1 or Brent breaks below $98. This isolates maritime supply-risk repricing better than a directional oil long.
• Pair long BP and SHEL versus short BCS and LYG over the next quarter. The pair captures upstream cash-flow upside against UK domestic credit sensitivity; reassess if Brent averages below $95 for two weeks or either bank avoids expected credit-cost/guidance deterioration at its next update.
• Buy 3-month XLE calls or a BP/SHEL basket only on pullbacks, rather than chase spot crude. Use a call spread structure to cap premium risk; upside requires sustained $100+ oil, while a verified restoration of normal regional exports is the key exit trigger.
• Maintain an underweight in PUK, LGEN and AV. until credit spreads and UK consumer indicators stabilize. The QT adjustment may support gilt valuations, but it is insufficient protection if equity declines and corporate-spread widening pressure capital generation and fee income.