The Australian and New Zealand dollars both firmed on Monday as a retreat in oil prices took some heat off inflation concerns, prompting traders to scale back bets on near-term interest rate hikes.
The Australian dollar touched $0.7001, its highest level in weeks, while the New Zealand dollar rose to $0.5798. The moves came as markets reassessed the likelihood of further tightening from the Reserve Bank of Australia (RBA) and the Reserve Bank of New Zealand (RBNZ).
Why Oil Prices Matter for Currencies
Oil is a key input into the global economy, and its price feeds directly into inflation readings. When energy costs rise, they push up the cost of transport, manufacturing, and heating — all of which can lift headline inflation. That tends to make central banks more hawkish, as they try to keep price pressures under control.
Conversely, when oil prices cool, as they have in recent days amid reports of potential US-Iran talks, it takes some pressure off inflation expectations. That allows central banks to be less aggressive, which can support currencies by reducing uncertainty about future rate moves.
For the Australian and New Zealand dollars — both of which are sensitive to commodity prices and global growth — a softer oil outlook is a welcome development. It suggests that one of the key drivers of inflation may be easing, giving the RBA and RBNZ more room to pause or slow their tightening cycles.
Rate-Hike Odds Trimmed
The shift in sentiment showed up quickly in interest rate markets. Traders cut the implied probability of an RBA rate hike at its next meeting to 30%, down from around 40% just a week ago. That means the market now sees a roughly one-in-three chance of a move, rather than a near-certainty.
Even so, a hike later in the year is still widely expected. The RBA has been grappling with stubborn inflation, and recent data on services prices and wages has kept the door open for further tightening. But the cooling in oil gives the bank some breathing room to wait and see how the economy evolves.
In New Zealand, the two-year swap rate — a market-based benchmark for interest rate expectations — edged lower, reflecting similar thinking. The RBNZ has already raised rates aggressively, and a softer inflation outlook could reduce the need for additional hikes.
What It Means for Investors
For everyday investors, the moves in the Aussie and Kiwi dollars are a reminder of how interconnected global markets are. A drop in oil prices doesn't just affect energy stocks or petrol prices — it ripples through currency markets, bond yields, and central bank policy expectations.
A stronger Australian dollar can be a double-edged sword. On one hand, it makes imported goods cheaper, which helps keep inflation in check. On the other, it can weigh on export competitiveness, particularly for sectors like mining and agriculture. That's something to watch if you hold shares in companies with significant overseas earnings, such as BHP or Rio Tinto.
The broader backdrop also matters. Iron ore prices have been wobbling as China's steel margins shrink, which could offset some of the positive currency effects. And while oil is cooling, other commodity prices remain elevated, keeping inflation risks alive.
For bond investors, the shift in rate-hike odds is a signal that yields may have peaked for now. If the RBA and RBNZ hold off on further tightening, short-term bond prices could stabilise, offering some relief to fixed-income portfolios that have been battered by rising rates.
Looking Ahead
Markets will be watching oil prices closely in the coming weeks. If the current slide continues, it could further reduce inflation fears and support the Aussie and Kiwi dollars. But any renewed spike — from geopolitical tensions or supply disruptions — could quickly reverse the gains.
Central bank communications will also be key. The RBA's next policy meeting is scheduled for early next month, and any hints from Governor Michele Bullock about the rate path could move markets. Similarly, the RBNZ's next decision will be scrutinised for signs of a pivot.
For now, the message from currency and rate markets is clear: a cooler oil market is giving central banks a bit more room to breathe — and that's helping the Antipodean currencies find their footing.
