Today (Monday) we have had some unprecedented rises in key swap rates. They have been driven by an unexpectedly large rise in the CPI.
The one year wholesale swap rate rose +23 basis points. The two year wholesale swap rate rose +28 bps.
These are the largest one-day rises since we started tracking wholesale swap rates in 2007.
The one year rate is suddenly back to levels last seen in June 2019. The two year rate is now back to levels last seen in January 2019.
If they hold, these huge jumps will have major implications for fixed mortgage rates.
What they indicate is that the money markets have priced in an extra full +25 bps rise at the next RBNZ OCR review on Wednesday, November 24, 2021. This is on top of what they had priced in for the expected strong CPI rise.
And these rises come at the same time international benchmark rates are rising too.
The future is one of sharply higher costs of money. And that means sharply higher mortgage rates.
To give an indication of what might be on the cards, here is what one year fixed home loan rates were when wholesale rates were last at this level:
| Jun-2019 | Oct-2021 | difference | |
| 1 year fixed mortgage rates when swap rates were last at 1.46% | |||
| % | % | bps | |
| ANZ | 3.89 | 2.79 | 110 |
| ASB | 3.95 | 2.99 | 96 |
| BNZ | 3.89 | 2.99 | 90 |
| Kiwibank | 3.85 | 2.95 | 90 |
| Westpac | 3.89 | 2.99 | 90 |
One year fixed rates could conceivably rise almost a full +1.00% in the next few weeks.
And here is what they were for two year fixed home loan rates:
| Jan-2019 | Oct-2021 | difference | |
| 2 year fixed mortgage rates when swap rates were last at 1.93% | |||
| % | % | bps | |
| ANZ | 4.29 | 3.25 | 104 |
| ASB | 4.29 | 3.45 | 84 |
| BNZ | 4.29 | 3.45 | 84 |
| Kiwibank | 3.99 | 3.30 | 69 |
| Westpac | 4.29 | 3.45 | 84 |
Two year swap rates could conceivably rise by more than +0.80%.
But things are likely to be 'worse' than this. The earlier benchmark rates we are using to compare are from when rates generally were falling and expected to fall further. Now the shoe is on the other foot - background rates are rising and are expected to rise further.
There is some way to play out here. But borrowers wouldn't be wrong to assume future rates will be substantially higher than today's rates.
And a key reason is that our CPI is now being driven by tradeable inflation (imported inflation). This too is very unusual, and that influence hasn't been around for many decades.
We welcome your comments below. If you are not already registered, please register to comment
Remember we welcome robust, respectful and insightful debate. We don't welcome abusive or defamatory comments and will de-register those repeatedly making such comments. Our current comment policy is here.