Here is the situation as April begins. A war is affecting one of the world's most important oil chokepoints. Brent crude is trading above US$100. And the Federal Reserve (Fed), which spent much of 2025 engineering a soft landing, is now facing an inflation threat driven less by wages, services or the domestic economy, and more by energy. It is watching an oil shock.

The Fed funds rate sits at 3.50% to 3.75%. The next Federal Open Market Committee (FOMC) meeting is on 28 and 29 April and the key question for markets is not whether the Fed will cut, it is whether the Fed can cut, or whether the energy shock may have shut that door for much of 2026.

A heavy run of major data releases lands in April. The March consumer price index (CPI), non-farm payrolls (NFP) and the advance estimate of Q1 gross domestic product (GDP) are the three that matter most. But the FOMC statement on 29 April may be the release that sets the tone for the rest of the year.

Growth: Business activity and demand

Think about what the US economy looked like coming into this year: AI-driven capital expenditure (capex) was a major part of the growth narrative, corporate investment intentions looked firm and the One, Big, Beautiful Bill Act was already in the mix. On paper, the growth story looked solid.

Then the Strait of Hormuz situation changed the calculus. Not because the US is a net energy importer, it is not, and that structural insulation matters. But what is good for US energy producers can still squeeze margins elsewhere and weigh on global demand. The 30 April advance Q1 gross domestic product (GDP) estimate is now likely to be read through two lenses: how strong was the economy before the shock, and what it may signal about the quarters ahead.

Labour: Payrolls and employment

February's jobs report was, depending on how you read it, either a blip or a warning sign. Non-farm payrolls (NFP) fell by 92,000, unemployment edged up to 4.4% and the official line was that weather played a role. That may be true but here is what also happened. The labour market suddenly looked a little less convincing as the main argument for keeping rates elevated.

The 3 April employment report for March is now genuinely consequential. A bounce back to positive payroll growth would probably steady nerves and a second consecutive soft print, particularly against a backdrop of higher energy prices, would start to build a very uncomfortable narrative for the Fed. It would be looking at slower jobs growth and an inflation threat at the same time. That is not a comfortable place to be.

Inflation: CPI, PPI and PCE

Here is the uncomfortable truth about where inflation sits right now. Core personal consumption expenditures (PCE), the Fed's preferred gauge, was already running at 3.1% year on year in January, before any oil shock had fed through. The Fed had not fully solved its inflation problem, rather, it had slowed it down. That is a different thing.

And now, on top of a not-quite-solved inflation problem, oil prices have moved sharply higher. Energy prices can feed into the consumer price index (CPI) relatively quickly, through petrol, transport and logistics costs that can eventually show up in the price of nearly everything. The 10 April CPI print for March is probably the most important single data release of the month, it is the one that may tell us whether the energy shock is already showing up in the numbers the Fed watches.

Policy, trade and earnings

April is also the start of US earnings season, and this quarter's results carry an unusual amount of weight. Investors have been pouring capital into AI infrastructure on the basis that returns are coming. The question is when. With geopolitical volatility driving a rotation away from growth-oriented technology and towards energy and defence, JPMorgan Chase's 14 April earnings will be read as much for what management says about the macro environment as for the numbers themselves.

Then there is the FOMC meeting on 28 and 29 April. After the early-April run of data, including NFP, CPI and producer price index (PPI), the Fed will have more than enough information to update its language. Whether it signals that rate cuts could remain on hold through 2026, or whether it leaves the door slightly ajar, may be the most consequential communication of the quarter.

Geopolitical volatility has already pushed investors to reassess growth-heavy positioning. The estimated US$650 billion AI infrastructure buildout is also coming under heavier scrutiny on return on investment. If earnings season disappoints on that front, and if the FOMC signals a prolonged hold, the combination could test risk appetite heading into May.

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Asia-Pacific markets start April with a focus on how prolonged disruption in the Strait of Hormuz feeds through to inflation, trade flows, and policy expectations. China's 15th Five-Year Plan shifts attention toward artificial intelligence and technological self-reliance, with knock-on effects for supply chains and regional growth. Japan and Australia both face the challenge of managing imported energy inflation while gauging how far they can normalise policy without derailing domestic demand.

For traders, the mix of elevated energy prices and policy divergence may keep volatility elevated across regional indices and currencies.

China

Lawmakers in Beijing have approved the 15th Five-Year Plan (2026-2030), placing artificial intelligence (AI) and technological self-reliance at the centre of the national agenda. The government has set a growth target of 4.5% to 5.0% for 2026, the lowest in decades, as it prioritises quality of growth over speed.

Japan

The Bank of Japan (BOJ) faces increasing pressure to normalise policy as energy-driven inflation risks a resurgence. While consumer prices excluding fresh food slowed to 1.6% in February, the recent oil price spike may push the consumer price index (CPI) back toward the 2% target in coming months.

Australia

The Australian economy remains in a state of two-speed divergence, with older households increasing spending while younger cohorts face significant affordability pressures. Following the Reserve Bank of Australia's (RBA) rate increase to 4.10% in March, markets are highly focused on upcoming inflation data to assess whether additional tightening may be required.

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The war in Iran is increasingly shifting from a regional conflict into a global energy shock, as disruption in the Strait of Hormuz threatens the oil market at its most critical chokepoint.

Key takeaways

• Around 20 million barrels per day (bpd) of oil and petroleum products normally pass through the Strait of Hormuz between Iran and Oman, equal to about one-fifth of global oil consumption and roughly 30% of global seaborne oil trade.

• This is a flow shock, not an inventory problem. Oil markets depend on continuous throughput, not static storage.

• If the disruption persists beyond a few weeks, Brent could shift from a short-term spike to a broader price shock, with stagflation risk.

The world’s most critical oil chokepoint

The Strait of Hormuz handles roughly 20 million barrels per day of oil and petroleum products, equal to about 20% of global oil consumption and around 30% of global seaborne oil trade. With global oil demand near 104 million bpd and spare capacity limited, the market was already tightly balanced before the latest escalation.

The strait is also a critical corridor for liquefied natural gas. Around 290 million cubic metres of LNG transited the route each day on average in 2024, representing roughly 20% of global LNG trade, with Asian markets the main destination.

The International Energy Agency (IEA) has described Hormuz as the world’s most important oil transit chokepoint, noting that even partial interruptions may trigger outsized price moves. Brent crude has moved above US$100 a barrel, reflecting both physical tightness and a rising geopolitical risk premium.

Tankers idle as flows slow

Shipping and insurance data now point to strain in real time. More than 85 large crude carriers are reported to be stranded in the Persian Gulf, while more than 150 vessels have been anchored, diverted or delayed as operators reassess safety and insurance cover. That would leave an estimated 120 million to 150 million barrels of crude sitting idle at sea.

Those volumes represent only six to seven days of normal Hormuz throughput, or a little more than one day of global oil consumption.

A market built on flow, not storage

Oil markets function on continuous movement. Refineries, petrochemical plants and global supply chains are calibrated to steady deliveries along predictable sea lanes. When flows through a chokepoint that carries roughly one-fifth of global oil consumption and around 30% of global seaborne oil trade are interrupted, the system can move from equilibrium to deficit within days.

Spare production capacity, largely concentrated within OPEC, is estimated at only 3 million to 5 million bpd. That falls well short of the volumes at risk if Hormuz flows are severely disrupted.

Oil market analysis

How long do idle tankers last?

135M idle barrels — days of cover against each demand benchmark

vs. Strait of Hormuz daily flow  (20M bbl/day)

6.75 days of Hormuz throughput covered

6.75 days

0

5

10

15

20

25

30 days

vs. Global oil consumption  (104M bbl/day)

1.3 days of world demand covered

1.3 days

0

5

10

15

20

25

30 days

vs. US Strategic Petroleum Reserve release  (1M bbl/day)

135 days of full SPR release pace covered

135 days — but SPR exists to replace this role

0

5

10

15

20

25

30 days

---

135M

idle barrels on tankers (midpoint of 120–150M range)

~33%

of daily Hormuz flow that is idle storage, not transit

<31 hrs

is all idle storage against global daily consumption

Sources: IEA, EIA, industry estimates. Idle crude midpoint of 120–150M bbl range used.

GO Markets

Scenarios for the weeks ahead

Market trajectories now hinge on the duration and severity of the disruption.

Short disruption, 1 to 2 weeks

If tanker traffic resumes within 1 to 2 weeks, the shock may show up as a sharp but ultimately reversible spike.

Cumulative supply loss would remain relatively limited, while inventories and strategic stocks may partly bridge the shortfall. In that scenario, Brent could trade in roughly the US$95 to US$110 range as traders price temporary disruption and elevated risk premia.

Extended disruption, 2 to 4 weeks

Beyond a fortnight, the cumulative loss becomes more material.

A 2 to 4 week disruption affecting up to 20 million bpd could imply roughly 280 million to 560 million barrels of lost supply. Commercial inventories, floating storage and strategic reserves may then begin to erode more visibly. In that scenario, Brent could shift toward the US$110 to US$130 range, while higher fuel costs may begin feeding into transport and industrial production.

These price ranges are scenario-based and indicative, not forecasts.

If the war ends within four weeks

A ceasefire or credible de-escalation within roughly four weeks would likely trigger a sharp reversal in oil markets, though not an instant reset to pre-crisis levels.

Initially, the unwinding of geopolitical risk premia and the normalisation of tanker traffic could push Brent lower, potentially into the US$80 to US$95 range as speculative and hedging positions are reduced.

Assuming flows are fully restored and further disruptions are avoided, prices could gradually trend back toward the low US$70s over subsequent months, broadly consistent with projections that show inventories rebuilding once supply regains a small surplus over demand.

Watching the oil shock play out on the ASX?
‍See 5 Australian energy stocks traders are tracking after the Iran oil shock.

Inflation risks and macro spillovers

The inflationary impact of an oil shock typically arrives in waves. Higher fuel and energy prices may lift headline inflation quickly as petrol, diesel and power costs move higher.

Over time, higher energy costs may pass through freight, food, manufacturing and services. If the disruption persists, the combination of elevated inflation and slower growth could raise the risk of a stagflationary environment and leave central banks facing a difficult trade-off.

Higher crude rarely moves in isolation.
‍See which global energy and oil-services names tend to come into focus when oil prices rise.

No easy offset, a system with little slack

What makes the current episode particularly acute is the lack of slack in the global system.

Global supply and demand near 103 million to 104 million bpd leave little spare cushion when a chokepoint handling nearly 20 million bpd, or about one-fifth of global oil consumption, is compromised. Estimated spare capacity of 3 million to 5 million bpd, mostly within OPEC, would cover only a fraction of the volumes at risk.

Alternative routes, including pipelines that bypass Hormuz and rerouted shipping, can only partly offset lost flows, and usually at higher cost and with longer lead times.

Bottom line

Until transit through the Strait of Hormuz is restored and seen as credibly secure, global oil flows are likely to remain impaired and risk premia elevated. For investors, policymakers and corporate decision-makers, the core question is whether oil can move where it needs to go, every day, without interruption.

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^{Any scenarios, price ranges or market views in this article are illustrative only and should not be relied on as forecasts, guarantees or trading recommendations. Geopolitical events can cause sudden volatility, reduced liquidity and sharp price movements across oil, forex and CFD markets, and trading in these conditions carries a high risk of loss.}