Yesterday non-bank mortgage provider Firstmac launched its third mortgage backed securitisation deal for 2016, seeking to sell around A$350 million in notes. The issue, according to pre-sale notes from Standard & Poor's and Fitch, will comprise six tranches, including unrated seller's notes. ANZ arranged the transaction and is also one of the joint lead managers, alongside Macquarie, NAB and Westpac.The bulk of the capital raised will be via the top-rated tranches, the Class A-1 and Class A-2 notes, set to raise A$298 and A$25 million respectively. Both were rated AAA (sf) $297.5 by S&P and Fitch.According to a Fitch pre-sale news release, the weighted average seasoning of the portfolio is 17 months, with a current weighted average loan/value ratio of 67.6  per cent and weighted average indexed LVR of 66.2 per cent. The average loan size is arouund A$348,000 while investment loans represent 38.0 per cent of the pool by balance, with interest-only loans at 38.9 per cent. Lenders mortgage insurance is present on 37.8 per cent of the pool.