Cash ACGBs are 5-6bps cheaper on the day, but with the AU-US 10-year yield differential.
- At +14bps, the differential has narrowed from recent wides but remains in the top half of the ±30bps range that has prevailed since November 2022.
- A simple regression of the 10-year yield differential against the AU-US 1-year forward 3-month swap rate (1Y3M) differential over the past two years suggests the current spread is -2bps versus fair value.
- The 1Y3M differential, a key gauge of expected relative policy trajectories over the next 12 months, has increased around 75bps since June to be around the same level as October 2024.
Figure 1: AU-US Cash 10-Year Yield Differential (%)

Source: Bloomberg Finance LP / MNI