RBNZ Surprise Hold vs RBA Hike Bets: AUD/NZD Outlook
Two central banks in the same region sent opposite signals within hours on October 28, 2026. The Reserve Bank of New Zealand (RBNZ) surprised markets by holding its rate, while hot Australian inflation data pushed traders to bet that the Reserve Bank of Australia (RBA) will hike on November 3. For forex traders, that gap matters most for AUD/NZD, and it also feeds into NZD/USD and AUD/USD.
Quick Summary
- RBNZ: held the Official Cash Rate (OCR) at 2.75% in a surprise decision. investingLive reports a 4-3 vote and says the bank still sees tighter policy ahead.
- New Zealand dollar: fell as much as 1.7% against the US dollar, then steadied near 0.5621, according to Reuters.
- Australian inflation: annual CPI rose to 4.3% in September from 4.0% in August. Trimmed mean inflation was 3.6% over the year.
- RBA: the cash rate is 4.60% after four hikes in 2026. Market odds of a November 3 hike jumped from about 60% to 79% after the data, per Vantage Markets.
- AUD/NZD: rose on the divergence. AUD/USD touched 0.7054 and then gave back most of its jump.
What the RBNZ Did
The RBNZ left its OCR at 2.75%. Reuters described the decision as a surprise that stunned markets, and the kiwi dropped as much as 1.7% before stabilising at 0.5621 per US dollar. The reported 4-3 vote suggests the committee is split on timing, although the bank signalled that tighter policy is still likely. That is our reading of the vote, so check the official RBNZ statement for the exact wording.
Why Australian Inflation Matters
The Australian Bureau of Statistics (ABS) reported on October 28 that consumer prices rose 4.3% in the 12 months to September, up from 4.0% in August. That was slightly above the 4.2% forecast, according to Babypips. The measure the RBA watches most is trimmed mean inflation, which strips out the biggest price swings so that one-off spikes do not distort the picture. It was 3.6% over the year.
The more important detail is the quarterly figure. ABC News reports that trimmed mean inflation rose 1.0% in the September quarter, in line with what many economists expected but above the 0.8% the RBA forecast in August. RBA Governor Michele Bullock has said inflation is too high and is likely to run above the bank’s August forecasts because of the oil shock. Deputy Governor Andrew Hauser said on October 21 that the inflation outlook looks noticeably worse than the bank projected in August, as Aussie summarises.
Two Central Banks, Two Paths
| Item | RBA (Australia) | RBNZ (New Zealand) |
|---|---|---|
| Policy rate | 4.60% | 2.75% |
| Latest decision | 25 bp hike on September 29, the fourth of 2026 | Surprise hold on October 28 |
| Market view | Hike on November 3 priced at about 79% right after the CPI data; ANZ expects a move to 4.85% | Policy still expected to tighten, but timing is now less clear |
| Currency reaction | AUD/USD hit 0.7054, then gave back about 80% of the jump | NZD fell as much as 1.7% against the US dollar |
What It Means for AUD/NZD
AUD/NZD is a cross rate, so it moves on the gap between the two central banks. When Australia looks set to tighten while New Zealand pauses, that gap favours the Australian dollar. This is what happened on October 28: investingLive reported that the hawkish RBA and the surprise RBNZ hold lifted AUD/NZD. Using the quotes in the Reuters report (AUD near $0.705 and NZD near $0.5621), the implied cross is roughly 1.25. That is our own calculation from two quotes taken at different times, so check a live chart before trading.
What It Means for AUD/USD and NZD/USD
The Australian dollar spiked after the CPI release but gave back most of the move because attention quickly shifted to the Federal Reserve. Reuters later had the Aussie hovering near a one-month high around $0.705. The dollar side of the pair depends on how traders read the Fed, which we cover in our article on the Fed’s 10-2 hold. The kiwi shows how fast one surprise can reprice a currency: a drop of 1.7% in a single session is large for a major.
Scenarios to Watch Before November 3
- RBA hikes and RBNZ stays on hold: the policy gap widens, which tends to support AUD/NZD.
- RBA holds despite the data: a hike is mostly priced in, so a hold would be a surprise. The Aussie could drop quickly and the AUD/NZD gains could fade.
- Oil and the dollar: Bullock ties the inflation upside to oil, so a fall in crude could ease hike bets. See how oil prices affect forex.
Trading Notes
- Crosses such as AUD/NZD often carry wider spreads than major pairs. Read forex spreads explained before you trade them.
- The RBA normally announces at 2:30 PM Sydney time, which is about 9:15 AM in Nepal. Our guide to forex trading sessions shows when the Sydney and Tokyo sessions overlap.
- Plan your risk before the event. Our forex trading plan template is a good starting point.
Frequently Asked Questions
Did the RBNZ raise rates on October 28, 2026?
No. The RBNZ held the OCR at 2.75%, which Reuters described as a surprise to markets.
When is the next RBA rate decision?
The RBA Board concludes its next meeting on November 3, 2026. The cash rate is currently 4.60%.
Why did AUD/NZD rise?
Australian inflation came in hot and strengthened the case for an RBA hike, while the RBNZ held unexpectedly. The wider policy gap favoured the Australian dollar.
What is trimmed mean inflation?
It is an underlying inflation measure that removes the largest and smallest price changes in the basket. The RBA prefers it to headline CPI because it is less affected by temporary spikes in items such as fuel.
This article is for education only and is not financial advice. Forex trading carries a high level of risk and you can lose more than you expect.
Sources: Business Recorder (Reuters), Dollar steady after Fed hold leaves rate path murky; investingLive, Hawkish RBA, surprise RBNZ hold lift AUD/NZD; ABS, Consumer Price Index, Australia, September 2026; ABC News, Inflation rate rises to 4.3 per cent in September; Vantage Markets, AUD/USD gives back CPI spike; Aussie, What experts predict for the RBA November decision; Babypips, Australia inflation heats up to 4.3%.
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Educational content, not financial advice. Leveraged trading can lose more than your deposit.
