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AU-US 10-Year Yield Differential Is Too Tight

AUSSIE BONDS

Today, the AU-US 10-year cash yield differential is 4bp lower at -19bp after 10-year cash tsys finished 4bp cheaper on Thursday.

  • At -19bp, the cash AU-US 10-year yield differential is currently in the lower part of the range of -30bp to +25bp which has been observed since November.
  • The narrowing in the 10-year yield differential from +25bp in mid-June can be attributed to a 70bp narrowing in the AU-US 3-month swap rate 1-year forward (1y3m) over that period. The 1y3m differential is a proxy for the expected relative policy path over the next 12 months.
  • A simple regression of the AU-US cash 10-year yield differential and the AU-US 1Y3M swap differential over the current tightening cycle indicates that the 10-year yield differential is currently 9bp too negative versus its fair value (i.e., -19bp versus -10bp).

Figure 1: AU-US Cash 10-Year Yield Differential (%) Vs. Model Fair Value (%)



Source: MNI – Market News / Bloomberg

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