OREANDA-NEWS. Fitch Ratings has affirmed the ratings of eight WB Trust RMBS tranches from three transactions. The transactions are backed by pools of Australian conforming residential mortgages originated by Auswide Bank Ltd. The rating actions are as follows:

WB Trust 2009-1 (note balances as of 28 February 2015):
AUD99.6m Class A-2 notes affirmed at 'AAAsf'; Outlook Stable; and
AUD0.6m Class AB notes affirmed at 'AAAsf'; Outlook Stable.

WB Trust 2010-1 (note balances as of 28 February 2015):
AUD70.7m Class A-2 notes affirmed at 'AAAsf'; Outlook Stable; and
AUD17.3m Class AB notes affirmed at 'AAAsf'; Outlook Stable.

WB Trust 2014-1 (note balances as of 28 February 2015):
AUD236.7m Class A notes affirmed at 'AAAsf'; Outlook Stable;
AUD19.5m Class AB notes affirmed at 'AAAsf'; Outlook Stable; and
AUD8.1m Class B notes affirmed at 'A+sf'; Outlook Stable.
AUD1.2m Class C notes affirmed at 'BBBsf'; Outlook Stable.

KEY RATING DRIVERS

The rating actions reflect Fitch's view that the available credit enhancement supports the notes at their current ratings, the agency's expectations of Australia's economic conditions, and that the credit quality and performance of the underlying loans have remained within the agency's expectations. Losses have been low and excess spread has remained stable.

At 28 February 2015, 30+ days arrears levels stood at 0.76%, 0.44% and 0.64% for WB 2009-1, WB 2010-1 and WB 2014-1, respectively.

WB Trust 2009-1, which has 91.9% lenders' mortgage insurance (LMI) cover provided by QBE Lenders' Mortgage Insurance Limited, had experienced 13 defaults since closing, totalling AUD1,480,905.5 as of 28 February 2015. All losses were covered in full by LMI.

Genworth Financial Mortgage Insurance Pty Limited (Genworth, A+ OutS) provides LMI cover for 99.7% of the WB Trust 2010-1 transaction; the remainder is covered by QBE. The portfolio has experienced four defaults totalling AUD97,169 with LMI covering 91% of all losses.

WB Trust 2014-1 has experienced no losses since transaction close. The pool features 27.0% of LMI coverage provided by QBE and 72.9% by Genworth.

RATING SENSITIVITIES

The WB 2009-1 and 2010-1 transactions are insensitive to a downgrade to LMI providers. At the 'AAAsf' loss severity of 25.3% the Class A-2 notes can withstand an increase in foreclosures to 81.6%. At the same modelled loss severity, the Class AB note can withstand an increase in foreclosures to 79.6%. The WB Trust 2010-1 has a 'AAAsf' modelled loss severity of 25.2% and at this level the Class A-2 note can withstand an increase in foreclosures to 100%. The Class AB note is relatively more sensitive to increases in foreclosures and at the same modelled loss severity can withstand an increase in foreclosures to 25.4%.

The Class AB note of the WB 2014-1 transaction can withstand a one notch downgrade to the LMI provider. At the 'AAAsf' modelled loss severity of 23.2%, the Class A notes can withstand an increase in foreclosures to 49.2%. At the same modelled loss severity, the Class AB note can withstand an increase in foreclosures to 17.3%. At their respective modelled loss severities of 7.9% and 5.8%, the Class B and C notes are relatively more sensitive to increases in foreclosures and can withstand increases to 11.1% and 8.6%.

A comparison of the transaction's representations, warranties and enforcement mechanisms (RW&Es) to those of typical RW&Es for this asset class is available by accessing the reports and the links given under Related Research below.