Global Markets, Oil above $114, and the RBA Hike

TL;DR

• Brent crude spiked to $114.44 on Monday — a nearly 6% surge — after Iran launched missile and drone attacks against the UAE and the US-Iran ceasefire appeared close to unravelling over the Strait of Hormuz.
• Wall Street rallied to records on Tuesday as oil eased back 4% to $109.87 and the US military said the ceasefire still held. The S&P 500 (+0.8%), Dow (+0.7%), and Nasdaq (+1%) all rose.
• The RBA hiked rates for the third time this year — to 4.35% — explicitly citing the Middle East oil shock. Governor Michele Bullock warned Australia is "staring down the barrel" of rising inflation, slowing growth, and rising unemployment.
• The contradiction is the story. Central banks are tightening into an energy supply shock. Markets are rallying on earnings. Someone is wrong.

What Happened

Two things happened on Monday, 5 May 2026, that pulled global markets in opposite directions. And then a third thing happened on Tuesday that revealed which force is winning — for now.

Monday: the Strait of Hormuz nearly broke the ceasefire.

Iran launched ballistic missiles, cruise missiles, and drones at the United Arab Emirates. The UAE activated its missile defence system for the first time since the US-Iran ceasefire took effect in early April. Residents of Dubai and Abu Dhabi received emergency alerts to seek shelter immediately. A drone struck an ADNOC-owned oil tanker attempting to pass through the strait. A South Korean-flagged cargo vessel exploded and caught fire.

The US military said it had destroyed six Iranian small boats in response. Iran's state media denied the claim and separately asserted — falsely, according to US Central Command — that a US warship had been struck by two missiles.

Brent crude surged nearly 6% to $114.44 a barrel. The Dow Jones Industrial Average shed more than 500 points, or about 1%. The S&P 500 and Nasdaq each fell roughly 0.5%.

Also Monday: the RBA hiked rates.

In Sydney, the Reserve Bank of Australia's monetary policy board voted 8-1 to lift the cash rate by 25 basis points to 4.35% — the third consecutive hike of 2026, fully unwinding last year's cutting cycle. The board's statement was unusually blunt: "As expected, developments in the Middle East are having an impact on inflation. Higher fuel prices are adding to inflation and there are indications that this is likely to have second-round effects on prices for goods and services more broadly."

Governor Michele Bullock told reporters that Australia was "staring down the barrel" of a very rough period. "These interest rate rises are not going to do anything for inflation in the next six months. That's done and dusted." The RBA's updated forecasts project headline inflation peaking at 4.8% mid-year, economic growth halving from 2.6% to 1.3% by year-end, and unemployment rising from 4.3% to 4.7%.

Tuesday: the market rallied anyway.

Defense Secretary Pete Hegseth and Joint Chiefs Chairman Gen. Dan Caine told reporters the ceasefire was still in place. Caine said Iran's attacks fell "below the threshold of restarting major combat operations at this point." Brent crude fell 4% to settle at $109.87.

Wall Street surged. The S&P 500 rose 0.8% to a new all-time high of 7,259.22. The Dow added 356 points (0.7%) to 49,298. The Nasdaq gained 1% to a record 25,326. DuPont rallied 8.4% on better-than-expected earnings. Pinterest jumped 6.9%. AB InBev climbed 8.7%.

Scott Wren, senior global market strategist at Wells Fargo Investment Institute, captured the mood: "This has been a 'why ask why' market. You just have to go with it."

What It Actually Means

The surface story — oil spiked, markets wobbled, ceasefire held, markets rallied — is not the real story. The real story is the contradiction at the heart of the global macro picture.

Central banks are tightening into a supply shock. The RBA's hike is the clearest example, but it is not alone. The Fed is expected to hold rates steady all year. The ECB is in a similar position. Central banks are using demand-side tools (interest rates) to fight a supply-side problem (energy prices). Bullock herself admitted the rate hikes "are not going to do anything for inflation in the next six months." The hike is a credibility signal, not a solution.

Markets are pricing earnings, not geopolitics. The S&P 500 is at an all-time high. Earnings growth for Q1 2026 is now projected to top 18%, up from estimates of 12.8% just a month ago. AI-driven capital expenditure is doing the heavy lifting. The market has decided that the war, the oil shock, and the Strait of Hormuz closure are — for now — survivable for US corporate profits.

The oil price is a global margin compression event. At $109-$114 a barrel, every airline, chemical company, shipping line, and manufacturer is running scenarios they hoped they wouldn't need. Chevron CEO Mike Wirth warned on Monday that fuel shortages were a growing concern: "It's not just a question of price. It's actually — can we get the fuel?" Goldman Sachs flagged rising risks of product scarcity in South Africa, India, Thailand, and Taiwan. The aggregate numbers — 101 days of global oil stocks, falling to 98 by end of May — mask sharper regional shortages.

The RBA is the canary. Australia is a commodity-exporting, energy-importing economy with a floating exchange rate and an independent central bank. It is the purest expression of the global macro tension. The RBA is hiking into a slowdown because it fears stagflation more than recession. If the RBA is right, other central banks will follow. If the RBA is wrong — if the oil shock fades and inflation recedes — it will have tightened unnecessarily into a weakening economy.

Hype Deconstruction

"The market is ignoring the war." Not quite. The market is pricing the war as a temporary supply disruption that will be resolved before it causes a global recession. That is a bet, not a fact. The bet may be right — the ceasefire is holding, however shakily — but it is a bet.

"Oil at $114 means recession." Not necessarily. The global economy is less oil-intensive than it was in the 1970s. The US is a net energy exporter. AI-driven productivity gains may offset some of the energy cost. But the transmission mechanism — higher fuel prices → higher transport costs → higher goods prices → higher inflation expectations → higher wage demands → higher interest rates → slower growth — is real and already in motion.

"The RBA hike was a mistake." Maybe. But the RBA's logic is internally consistent: inflation was already above target before the war. The oil shock is adding to it. Credibility, once lost, is expensive to regain. The hike is a statement that the RBA will not let the 1970s repeat. Whether that statement is worth the cost in growth and employment is the question.

Stakeholder Landscape

Cross-Layer Implications

The AI earnings shield. The reason the S&P 500 is at a record despite a war and an oil shock is AI. Technology sector earnings — driven by cloud computing, AI infrastructure, and semiconductor demand — are growing fast enough to offset energy-cost headwinds in other sectors. The question is whether this decoupling can persist. If oil stays above $100 and the war drags on, the non-AI economy will slow. At some point, that slowdown will show up in advertising revenue, cloud spending, and enterprise software budgets. The AI shield is real but not infinite.

The stagflation risk is real. Former senior RBA official Jonathan Kearns, now chief economist at Challenger, warned explicitly of stagflation risk before the RBA decision: "We may not have stagflation yet, and the risk may be small given our economy is less dependent on oil today. But the risk is real." The RBA's own Statement on Monetary Policy models two adverse scenarios — both involving extended Strait of Hormuz closure — in which inflation rises, growth falls, and unemployment increases. These are not forecasts. They are warnings.

The yen intervention watch. Japan's Finance Minister spoke out against speculative currency trading on Monday, and the yen briefly surged from 157.82 to 155.69 — consistent with another round of intervention. The yen is caught between a Fed that cannot cut (because of oil-driven inflation) and a BoJ that cannot hike aggressively (because of domestic fragility). The result is a currency that keeps testing levels that trigger intervention. This is a side effect of the same global macro tension driving the RBA hike.

The federal budget collision. Australia's federal budget is due 12 May — one week after the RBA hike. The Albanese government must now deliver a budget in an environment of rising rates, rising inflation, slowing growth, and a global energy shock. The political economy of this moment is extraordinarily difficult.

What This Means for You

If you hold a mortgage in Australia: Your repayments have now risen three times this year. A $600,000 mortgage costs $272 more per month than in January. Westpac forecasts two more hikes. If you have not already stress-tested your budget at a 4.85% cash rate, do it now. Contact your broker. Do not wait for the June RBA decision.

If you invest in equities: The market is pricing a benign resolution to the Strait of Hormuz crisis. That may be correct. But the asymmetry is worth noting: the upside from a ceasefire is limited (oil was already falling before the war), while the downside from a ceasefire collapse is large. Position-sizing accordingly is not market-timing — it is risk management.

If you run a business with fuel exposure: Fuel hedging at current levels is expensive but may be cheaper than the alternative if the strait remains contested. The Goldman Sachs analysis on regional product scarcity — South Africa, India, Thailand, Taiwan — suggests supply-chain diversification away from Gulf-dependent routes is worth examining now, not later.

If you are a general reader: The contradiction at the heart of this moment is real. Central banks are tightening. Markets are rallying. Oil is above $100. Earnings are beating estimates. One of these things will give. The question is which one, and when.

Uncertainty Ledger

Bottom Line

Oil above $114 — even briefly — is a global margin compression event. It forces every central bank, every airline, every shipping line, and every manufacturer to run scenarios they hoped they would not need. The RBA just hiked for the third time this year, explicitly because of the Middle East oil shock, and warned that the rate rises will not help inflation for at least six months. Wall Street rallied anyway, because earnings are beating estimates and AI capex is doing the heavy lifting. The contradiction between tightening central banks and record-high equity markets cannot persist indefinitely. The question is not whether it resolves. It is how, and at what cost.

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