Oil went up. Everything else went down.

Brent settled near $91 a barrel as hopes faded for a deal to end the Iran war. That one number pushed the 30-year Treasury yield to its highest since 2007 and knocked every major index lower.

Monday was quiet on the calendar and loud on the tape. With no major data due, markets took their direction almost entirely from crude — and crude went up, as talks to reopen the Strait of Hormuz looked further away rather than closer.

The S&P 500 fell 0.51% to 7,746.21, the Dow 0.49% to 53,469.20, the Nasdaq Composite 0.31% to 26,652.29. In London the FTSE 100 closed down 0.3% at 10,720.30, its lowest in over three weeks, with the FTSE 250 off 0.7%. Chipmakers were the one bright spot on both sides of the Atlantic.

The bond market told the clearer story. The US 30-year Treasury yield reached 5.29%, the highest since 2007.

Why this matters to you. Follow the chain. A shipping lane stays shut, so oil costs more. Fuel feeds into the price of nearly everything, so inflation looks stickier. If inflation is sticky the Federal Reserve can't cut rates — and traders started pricing the possibility it might have to raise them before the year is out. Higher rates mean every future pound of company profit is worth less today, so share prices fall. Nothing changed inside any of these businesses on Monday. What changed was the rate used to value all of them.

What moved

MinersAnglo American and the gold names led LondonAAL

Endeavour Mining rose 84p to 4,195p and Fresnillo 50p to 2,930p as gold reached $4,423 an ounce, up from $4,388 on Friday. Anglo American added 78p to 3,928p. When oil rises on conflict, miners and gold tend to be where money goes — the same fear moves both.

RetailUK consumer names sold off ahead of the dataJD

JD Sports fell 3.2% before Thursday's trading statement. Tesco and Sainsbury dropped 3.0% and 3.2% ahead of Tuesday's grocery market share figures. Housebuilders weakened too, after Rightmove reported a much larger than usual August fall in UK house prices.

AI capexNVIDIA reportedly weighing $3bn into a data centre projectNVDA

NVIDIA is said to be in talks to invest up to $3bn in SB Energy, a SoftBank subsidiary building a large Ohio data centre for OpenAI — part of wider discussions around roughly $100bn of credit support for the campus. Its own results land on 26 August.

LegalSnap loses its liability shieldSNAP

Shares fell after the Ninth Circuit stripped Snap's Section 230 protection, clearing more than 3,000 addictive-design lawsuits to proceed. That erased the gain from its 3 August results. A reminder that a legal ruling can undo an earnings beat overnight.

Charts

Crude fell through the summer as demand weakened. It is climbing again because the Strait stays shut.

Miners up on gold and conflict; consumer names down ahead of this week's data.

Where things closed

S&P 500	7,746.21 −0.51%
Nasdaq	26,652.29 −0.31%
Dow Jones	53,469.20 −0.49%
FTSE 100	10,720.30 −0.3%
FTSE 250	24,704.40 −0.7%
DAX 40	−0.4%
CAC 40	−0.7%
Nikkei 225	69,220 +508
Hang Seng	25,453 +336
Gold	$4,423.12

Geopolitics, and where it lands

Hopes of an Iran deal receded

Brent settled near $91 as expectations dimmed for a near-term resolution, with the Strait of Hormuz — normally about a fifth of the world's seaborne oil — still effectively closed. Where it lands: straight into the inflation numbers, then into the rate decision, then into the value of every share you own. This is the single most important variable on the board right now.

The 30-year yield says something the headlines don't

At 5.29% it is the highest since 2007. Long-dated yields reflect what investors expect inflation and rates to do over decades, not months. Where it lands: mortgage costs, government borrowing, and the discount rate applied to long-duration assets — which is most of the technology sector.

Japan's economy shrank more than expected

Second-quarter GDP came in weaker than forecast, yet the Nikkei still rose 508 points to 69,220. Where it lands: a weaker economy raises the odds of continued easy money, which supports share prices even as it signals trouble underneath. Bad news being read as good news is usually a sign the market is trading policy rather than fundamentals.

Econ Corner

United States

Indicator	Latest	Prev
Inflation (CPI) July, annual	3.4%	3.5%	↓
Core CPI July	2.5%	2.6%	↓
Retail sales July	worst fall in 12m+	—	↓
30-year Treasury 17 Aug	5.29%	highest since 2007	↑
Real GDP Q2, annualised	1.5%	—	slowed
Unemployment	4.3%	—	→
Nonfarm payrolls July	−23,000	gain expected	↓
Fed funds rate	3.50–3.75%	unchanged	→

United Kingdom

Inflation (CPI) most recent published	2.8%
Bank Rate	3.75%
Unemployment Jan–Mar	5.0%
House prices August, Rightmove	larger fall than usual

Inflation was falling. Oil at $91 is the thing most likely to stop it.

What it adds up to

A month ago the argument was whether the Fed would cut. Today it is whether oil forces a rise. Nothing about the underlying economy improved — growth is slow, jobs are weakening, the consumer has pulled back. The variable that changed is the price of crude.

Which is why this week's retail results matter more than usual: they show whether households can absorb it.

Next up

Home Depot	Tuesday
Fed July minutes	Wednesday
Target, Lowe's, TJX	Wednesday
Walmart	Thursday
NVIDIA results	26 Aug

Readings are the latest published at time of writing and are revised regularly.

The week ahead

Four big retailers report in three days, and the Federal Reserve's July minutes land in the middle of them. After a month in which US retail sales fell the most in over a year, this is the clearest read available on whether the consumer is genuinely retrenching — and whether households can absorb oil at $91. NVIDIA follows on 26 August.

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