In recent news on the residential mortgage-backed securities (RMBS) front, the Australian Office of Financial Management said it had sold some of its RMBS notes, while diversified financial services provider MyState has launched a new RMBS issue.The sale of two tranches of RMBS notes, originated by ING Direct 2011 and 2012, respectively, was disclosed yesterday by the AOFM "in terms of amortised face value". They were:   A$100.5 million of IDOL 2011-1 A1 A$77.1 million of IDOL 2012-1 A. These floating-rate securities were sold at an effective margin of 80 basis points over the one-month bank bill swap rate, with a remaining weighted average life of around 2.8 years.The details of the deal were being reported "in the interests of secondary market transparency", the AOFM said.Meanwhile, MyState has launched a new RMBS issue, seeking to raise around $320 million in funding. The securitisation deal, to be known as ConQuest 2013-1, is backed by a pool of mortgages originated by MyState Financial and The Rock Building Society. One notable aspect of this deal, according to a pre-sale note from Fitch Ratings, is that, although these two institutions merged in December 2011, there are effectively two originators and two sellers involved as the portfolio contains loans originated in Tasmania by MyState (23 per cent) and in Queensland by The Rock (77 per cent). Investment loans comprise 18 per cent of the pool and first-time borrowers account for 12 per cent of the pool.All loans benefit from lenders' mortgage insurance and are "conservatively underwritten", Fitch said. The arrears history for both MyState and The Rock has tracked below the ratings agency's Dinkum Index for prime RMBS in recent years.