Hormuz · TRAFFIC HALVED
The US carried out fresh strikes on Iran after roughly a month of relative calm; Tehran retaliated by targeting American bases in the region and vessels passing through the strait, with two tankers struck — claims are contested and the picture is fast-moving · traffic: six commodity vessels transited the strait on Wednesday, down from 11 on Tuesday and against a 10-day average of nearly 13, so the disruption is measurable, not just a price signal · oil: Brent traded near $95 and gained about 8% on the week, and the premium has not faded — it is now a standing factor in the global inflation outlook
As of Sun 6 Sep 2026, 09:00 GST
Calm surface, shifted beneath.
+0.1%
S&P 500 · week
flat, after a round trip
~+8%
Brent · week
escalation premium
+162k
Aug payrolls
vs ~56k expected
~58%
Sept hike odds
CPI Friday decides
Nothing moved; everything changed.
Look only at the index levels and nothing happened this week. Look anywhere else and the ground shifted. A conflict that had been quiet for a month reignited, with strikes and counter-strikes putting commercial shipping back in the firing line and pushing crude up 8%; long yields touched multi-decade highs; and the labour market, which the doves had been counting on to soften, delivered its strongest month in some time. Each of those individually would argue for tighter policy. Together they moved the September meeting from a coin-flip to more likely than not. The equity market’s composure through all of it is either impressive or complacent, and Friday’s CPI will tell us which. Governor Waller has said explicitly that the decision hinges on that number — and with the Fed now silent until after the meeting, there is nothing else left to move it.
The week that was, condensed.
- 01
The market took a violent round trip that netted to almost nothing — the S&P up 0.1% and the Nasdaq 0.4% on the week.
- 02
It began with escalation: the US struck Iranian targets after roughly a month of calm, Tehran retaliated against American bases and vessels, and two tankers were hit in the Strait of Hormuz.
- 03
Brent rose about 8% on the week to near $95 and Treasury yields reached multi-decade highs, with the oil shock feeding straight into the inflation debate.
- 04
Midweek the mood flipped, as soft ADP hiring and Governor Waller's remark that a hike would not be warranted if inflation slows drove the best session in a month.
- 05
Then Friday's payrolls ended the argument — 162,000 jobs against about 56,000 expected — lifting September hike odds to roughly 58% with August CPI now the last input before the decision.
The week, and the year so far.
- Equities went nowhere — a slide, a surge and a drop cancelled out to a flat week.
- The rate outlook moved a lot — a hot payrolls print lifted September hike odds to roughly 58%.
- Oil did the real damage — Brent up about 8% on renewed Hormuz attacks, with strait traffic roughly halved.
Tap Week or YTD on each card. Week = 31 Aug–4 Sep; YTD figures approximate. Single names appear as news, not recommendations.
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WTD = 31 Aug–4 Sep; YTD approximate. Movers shown as news.
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US BLS, August employment report; consensus per Reuters poll.
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Hike odds market-implied, approximate. Quiet period runs to 17 Sep.
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Traffic figures per reported vessel counts. Levels approximate.
One number, then the decision.
Scenarios · week of 7 Sep · Vault Wealth view
August CPI, the last input.
Labor Day closes US markets on Monday and the Fed is already in its quiet period, leaving Friday's August CPI as the only input left before the 15–16 September meeting.
A soft CPI rescues the doves — August inflation comes in cooler than feared despite the oil move, hike odds fall back below a coin flip, yields ease and equities rally into the meeting. It is the doves' last chance, and it needs the energy pass-through to be slower than the crude price implies.
In-line CPI; drift into the FOMC — inflation lands close to forecast with core still sticky, leaving September more likely than not but not certain. A holiday-shortened, low-conviction week that drifts sideways with oil elevated and the Fed silent.
Hot CPI, or further escalation — the oil shock shows up in the data and CPI runs hot, cementing a hike and spiking yields, or another attack in the strait lifts crude again. Two live triggers, and the tail has been arriving more often than our weights have assumed.
Probabilities sum to 100% · Vault Investment Office house view, refreshed Sundays
Vault Wealth scenario framework; probabilities are illustrative, not forecasts. Key event: US August CPI, Fri 11 Sep. FOMC 15–16 Sep.
Three that defined the week.
Labour
Payrolls surge
- August hiring came in at 162,000 against about 56,000 expected, with unemployment steady at 4.1%.
- It lifted September hike odds to roughly 58% and undercut the doves.
BLS · CNBC · 4 Sep
Oil · Geopolitics
Hormuz reignites
- US strikes drew Iranian retaliation on American bases and vessels; two tankers were hit and Brent rose about 8%.
- Strait traffic roughly halved, to six vessels on Wednesday.
Reports · Bloomberg · 1–4 Sep
The Fed
Waller breaks ranks
- The governor said a hike would not be warranted if underlying inflation slows — and that the decision hinges on August CPI.
- It drove the best day in a month before the jobs data undercut it.
Reported remarks · 3 Sep
How last Sunday's call aged.
Jobs cool; hike odds fade
Call: payrolls soften without signalling recession, hike odds slip below a coin flip, yields ease and the rebound resumes.
Actual: payrolls came in at nearly three times the forecast and hike odds rose to about 58%. The opposite of the call, on every limb. Miss.
A middling print; wait for 16 Sep
Call: a mixed jobs report leaves September a coin-flip and the market drifts, range-bound, with calmer oil as a floor.
Actual: the market did end the week almost unchanged — but the jobs print was hot, not mixed, and oil rose 8% rather than staying calm. Right outcome, wrong drivers. Partial.
Hot jobs, or oil re-spikes
Call: a strong payrolls print cements a hike and spikes yields — or a Gulf re-escalation revives the oil premium.
Actual: both triggers fired. Payrolls ran hot, hike odds passed 57%, yields hit multi-decade highs, and the Gulf re-escalated with Brent up 8%. Only the equity fall failed to arrive. Hit.
For the second time in three weeks, the scenario we assigned the lowest probability is the one that described the week. That is now a pattern rather than an accident, and it deserves a plain answer: our weights have been too kind to benign outcomes in a period when escalation and hawkish surprises keep arriving. The one genuine consolation is that the equity market has refused to fall as the bear case assumed — resilience we should also respect rather than dismiss. We have raised the bear weight again for the coming week, and we hold the hedges that this discipline implies.
The disruption, now measurable.
After roughly a month of relative calm, the conflict reignited. The US carried out fresh strikes on Iran, and Tehran retaliated by targeting American bases in the region and vessels passing through the Strait of Hormuz, with two commercial tankers struck. Reports on the attacks remain contested and the situation is fast-moving, so the useful measure is the one that can be counted: six commodity vessels transited the strait on Wednesday, down from eleven the day before and against a ten-day average of nearly thirteen. Traffic has roughly halved in a matter of days. That is the export recovery of August reversing in real time, and it explains why Brent gained about 8% on the week to near $95 and why the premium has not faded since. For the region, the pattern of the past six months repeats: each period of calm invites hope of normalisation, and each escalation demonstrates how quickly it can be withdrawn. The wider consequence is that a shipping lane dispute is now a direct input into a US rate decision nine days away.
Vault Wealth’s house view: we keep the energy and gold hedge and remain defensive into the 15–16 September meeting. The combination we face is the difficult one — a supply-driven oil shock that monetary policy cannot fix, alongside a labour market strong enough to let the Fed tighten anyway. We add no equity risk here. Friday’s August CPI is the last swing factor, and Governor Waller has said as much; a genuinely soft print would ease the rate pressure and let us begin to re-engage, while a hot one would confirm the defensive stance through the meeting. We stay balanced, liquid and patient, and we will act on the number rather than anticipate it.
Traffic
6 vessels
Wed, vs ~13 average
Brent
~+8% wk
Near $95; premium on
Stance
Defensive
Hedge on into 16 Sep
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Three things to watch into next week.
Watch 01
August CPI, Friday
The last input before the decision, and by Governor Waller's own account the one it hinges on. Watch the core reading, and whether the oil move has begun to pass through to goods and services prices.
Watch 02
The 15–16 September meeting
With odds near 58%, a hike would be the first of this cycle and a genuine surprise to a market that spent the summer pricing cuts. The Fed is silent until then, so pricing will move on data alone.
Watch 03
Hormuz traffic
Vessel counts are now the cleanest real-time gauge of this conflict's economic cost. If transits keep falling, the oil premium builds regardless of diplomacy — and the Fed's inflation problem gets harder.