The first down week in four.

It was a single story wearing several hats. The week began with the return of the war premium — an Iranian official’s “offensive” threat and President Trump’s refusal to revive the truce sent Brent back through $90 and on toward the mid-$90s. That oil move did the rest: it revived the inflation worry the cool CPI and PPI had eased, drove long yields to multidecade highs, and compressed the richly valued AI leaders that had carried the market to its record. Midweek, the hawkish FOMC minutes confirmed a Fed still biased to tighten, and on Thursday Walmart made the human cost explicit, blaming high gas prices for shoppers’ trade-offs as it posted its worst day in over four years. The retailers were not uniformly weak — Home Depot and Target beat and raised — so this is a repricing, not yet a downturn. But the net was the first down week in four and a record unwound, and everything now points to Jackson Hole, where new Fed Chair Kevin Warsh delivers his first keynote.

• Stocks broke their streak — the S&P and Nasdaq snapped three-week runs as yields and oil squeezed valuations.
• Oil was the engine — Brent’s sixth straight session higher, up 6.4% on the week, drove the inflation and rates worry.
• The consumer flashed a warning — Walmart’s miss and gas-price caution outweighed beats from Home Depot and Target.

Figures are the week to Friday 21 Aug’s US close; weekly index moves are approximate; rates, FX and commodity levels are the latest available. Single names appear as news, not recommendations. Times GST.

This was the week the Strait of Hormuz standoff reasserted itself as the dominant force in global markets. The de-escalation hopes of early August are gone: an Iranian official floated an “offensive” shift, President Trump ruled out reviving the interim truce, and with the waterway still largely blocked, Brent climbed for a sixth straight session to about 6.4% on the week, toward the mid-$90s. What made this week different is that the oil move stopped being a regional or even a purely financial story and started shaping the whole global picture — lifting US long yields to multidecade highs, pressuring equities, and, in Walmart’s telling, squeezing American households at the pump. For the Gulf, the higher price is a fiscal positive, but the escalation risk, the shipping and insurance disruption, and the reputational weight of a conflict with no off-ramp all dominate. The longer the strait stays constrained, the more the cost compounds through the world economy — and the more the region sits at the centre of the global risk picture.

Vault Wealth’s house view: the week vindicates the defensive stance we took when Brent broke $90, and we carry it into Jackson Hole. The energy and gold hedge stays lifted and has done its job as crude rose and equities fell. We are not adding risk into a market absorbing an oil-driven inflation impulse and an early consumer warning, and we keep the book balanced and liquid. This is a repricing, not a proven downturn — two of the big retailers beat — so we manage exposure rather than retreat. A durable fall in oil and a calmer Fed tone from Chair Warsh at Jackson Hole would let us reverse the hedge and re-engage; a further escalation, or Brent toward $100, would keep us firmly defensive.