Hormuz · STILL DISRUPTED
Tracked transits stayed more than 50% below normal through the week, and the US continued strikes and a ports blockade, saying it is acting to keep the strait open · Iran: Foreign Minister Araghchi reasserted that Iran “has always been the guardian of the strait,” and both sides continue to claim control · tolls: Trump dropped a planned 20% fee on cargo transiting the strait, while reports of wider action on Iranian oil sites remain unconfirmed
As of Sat 18 Jul 2026, 08:00 GST
The four things the weekend turns on.
−1.6%
S&P 500 · week
relief undone by the rout
−2.9%
Nasdaq · week
AI and chips led lower
Off table
July hike
two cool inflation prints
~$85
Brent
up on the week; energy led
Relief in the middle — a rout at the ends.
The week’s lesson was that the market’s biggest risk right now is inside its most crowded trade, not in the macro data. Inflation actually improved — a genuine positive that reset rate expectations lower — yet it could not hold the tape up once confidence in the AI-capex story wobbled. A cheaper, competitive model out of China and the first hint that hyperscaler spending might slow were enough to send the leaders that have carried the market sharply lower. Layered underneath is a persistent energy bid from the strait. For clients, the takeaway is diversification: this was a week when concentration in a handful of AI names, not the economy, drove the drawdown.
Concentration cut both ways.
- Tech led the drop — the same AI and chip names that powered the year’s gains drove the weekly loss, with the Nasdaq off 2.9%.
- Inflation news was good — two cool prints cemented a July hold and pulled Treasury yields into a lower range.
- Energy outperformed — rising oil made energy the week’s standout sector, a partial hedge against the tech drawdown.
Figures are the week to Friday 17 Jul’s US close; rates, FX and commodity levels are the latest available and approximate. Single names appear as news, not recommendations. Times GST.
−2.9%
Nasdaq · wk
AI-led
−1.6%
S&P 500 · wk
back-half rout
3.5%
CPI · annual
from 4.2%
~$85
Brent
up on the week
A competitive new model from China's Moonshot AI and hyperscaler-capex fears drove a semiconductor selloff; Netflix fell 11% on a soft outlook.
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Week to Fri 17 Jul. Names shown as news.
Two soft prints took a July hike off the table; a resilient consumer (retail ex-petrol +0.7%, claims 208k) rounded out a solid macro week.
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US BLS & Commerce Dept, June / latest week.
Crude rose on the Hormuz disruption, lifting energy stocks even as the broad market fell; the risk premium stays in the price into the weekend.
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Commodity and rate levels approximate, latest available.
The dollar was pulled two ways — lower on trimmed rate expectations, supported by the late-week risk-off; gold held its bid throughout.
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FX/crypto levels approximate, latest available.
The S&P's week, day by day.
S&P 500 · daily % change
Up on the data, down on the AI scare.
The two green days are the cool CPI and PPI prints; the red ends are the chip-and-AI selloff that set the week's direction.
Source: CNBC, TheStreet, Yahoo Finance; daily S&P 500 closes, 13–17 Jul 2026. Shown as % change.
Three threads from the week.
Tech · AI
The AI-capex scare
- China's Moonshot AI unveiled a model it says narrows the gap with top US offerings, stoking fears hyperscalers will spend less.
- Semiconductors led the market lower; Netflix fell 11% on a soft sales outlook.
CNBC · Motley Fool · 17 Jul
Macro
Inflation cooled, twice
- June CPI eased to 3.5% and PPI fell 0.3%, taking a July hike off the table; the consumer stayed resilient.
- The good news reset rates lower but could not hold up the tape.
BLS · CNBC · Bloomberg · 14–16 Jul
Oil · Geopolitics
The strait keeps a bid in oil
- Brent rose through the week near $85; Iran's foreign minister reasserted Iran as the strait's “guardian” and Trump dropped a transit toll.
- Transits stayed more than 50% below normal; energy led the market.
Al Jazeera · CNBC · 17–18 Jul
The strait keeps the region in focus.
While global markets spent the week absorbed in an AI scare, the Gulf’s central issue held steady and unresolved. Tracked transits through the strait stayed more than 50% below normal, the US continued strikes and a ports blockade — saying it is acting to keep the waterway open — and Iran’s foreign minister reasserted that Iran is the strait’s “guardian.” Washington also dropped a planned 20% transit fee, a small step back, while reports of possible wider action against Iranian oil infrastructure stayed unconfirmed. Both sides continue to claim control, and the truest gauge remains the flow of ships, not the statements. The result was a persistent bid under oil near $85 and clear outperformance from energy — supportive for Gulf export revenue, but set against higher freight, insurance and a still-uncertain security backdrop.
Vault Wealth’s house view: unchanged — a cautious-constructive stance on GCC financials and domestic-demand sectors, with energy and gold hedges retained; the week’s AI-led drawdown reinforces the case for diversification away from concentrated positions. A confirmed strike on Iranian oil infrastructure, or Brent breaking decisively above the mid-$80s, would be the trigger to turn more defensive.
Brent
~$85
Up on the week; energy led
Transits
−50%+
Still well below normal
Iran FM
“Guardian”
Reasserts role; both claim control
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