Sydney, March 4, 2026, 17:07 (AEDT) — After-hours
National Australia Bank Ltd (NAB.AX) closed down 2.0% at A$46.68 on Wednesday, as investors sold Australian bank stocks into a broader risk-off session. ANZ fell 3.7%, Westpac slipped 1.6% and Commonwealth Bank lost 1.2%. 1
For NAB and its peers, the story right now is macro. Traders are suddenly less comfortable with the idea that rates can only drift lower, and they’re trying to price a fresh oil-driven inflation pulse on top. The ASX 200 sank 1.9% in its worst session since early February as oil climbed and investors worried a drawn-out Middle East conflict could keep inflation higher for longer. 2
Reserve Bank of Australia Governor Michele Bullock said this week she wanted to “dissuade” markets from thinking the rate path was set, warning inflation expectations could shift if the supply shock from the Middle East conflict persists. Markets moved to imply about a 30% chance of a quarter-point hike at the March 17 meeting and fully priced tightening by May; three-year bond yields rose 13 basis points (100 basis points equals one percentage point) to 4.313%. 3
The pressure on rate expectations hardened again on Wednesday after data showed the economy grew 0.8% in the December quarter and 2.6% from a year earlier, stronger than many had pencilled in. “Investment in data centres and aircraft was maintained at high levels,” ABS head of National Accounts Grace Kim said, while Deloitte Access Economics partner Stephen Smith said the “key question for 2026” was how quickly growth slows and whether an oil-price shock complicates the RBA’s balancing act. 4
Banks can like higher rates, to a point, because they can lift lending margins. But they also face the other side of the trade: higher funding costs, softer credit demand and more strain on borrowers if rates stay elevated.
There wasn’t fresh, price-sensitive NAB news driving Wednesday’s move. The next company marker on the calendar is NAB’s half-year results on May 4, with the interim dividend ex-date set for May 7, the bank’s financial calendar shows. 5
The risk for NAB bulls is that the macro swing turns into something messier. If oil keeps climbing and the RBA feels pushed into moving sooner, the sector can catch a double hit — higher discount rates for valuations and rising worry about arrears and write-offs.
The next clear catalyst is the RBA’s March 17 decision, which now sits at the centre of the debate for bank stocks heading into the next session and the weeks ahead.
