Default rates trending higher while prepayment rates drop sharply…

Christopher Joye

Coolabah Capital

We have just published our August RMBS default index report, which you can download here. Key take-aways are as follows:

  • Contrary to S&P data, Coolabah’s globally unique hedonic index of compositionally-adjusted Australian RMBS default rates shows defaults trending higher after controlling for the date of the RMBS issue, the average life of the loans, the average LVRs and geographic biases
  • Coolabah has also developed another global first, which is a hedonically-adjusted mortgage prepayment index, which shows Australian prepayments (or CPRs) are slumping sharply lower to the detriment of RMBS investors given this blows out the weighted average life of RMBS bonds
  • Since April 2017 Coolabah has argued that Australian house prices would fall by 10%, a forecast recently embraced by ANZ, UBS and PIMCO amongst others. House price falls of 10% or more combined with higher default rates will very seriously threaten the credit ratings on junior RMBS tranches, from the AAA rated ABs and lower. Coolabah believes RMBS spreads are heading wider as this process unfolds over the next 1-2 years
  • On the other hand, S&P has recently put Australia’s economic risks core on positive trend for an upgrade because house prices are falling and credit imbalances are unwinding. Coolabah believes this will result in the major banks’ RAC ratios rising above 10%, earning them SACP upgrades from “a-“ to “a”, which would in turn upgrade their T2 and AT1 bond ratings to BBB+ and BBB- respectively while reducing by one notch the assumed government support underpinning their senior bonds’ AA- ratings (ie, this is also positive for major bank senior)

You can download the full report here.


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Portfolio Manager & Chief Investment Officer
Coolabah Capital

Chris co-founded Coolabah in 2011, which today runs over $8 billion with a team of 26 executives focussed on generating credit alpha from mispricings across fixed-income markets. In 2019, Chris was selected as one of FE fundinfo’s Top 10 “Alpha...

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