Bank of Queensland is marketing its first asset-backed security in more than four years. If the transaction proceeds it will lift volumes in the year to date for this form of funding to a level exceeding that of calendar 2011.BOQ is seeking to sell A$500 million in securities supported by chattel loans and leases originated through its equipment financing arm.The bulk of the loans cover trucks, buses and cars. The average loan is for $36,000 and the average seasoning of the loans is 24 months, with a further 29 months to run.Last week, Lloyds Banking Group privately placed around $460 million of bonds, with the top tranche being denominated in US dollars.Two months ago, Macquarie funded around US$400 million in car and truck receivables in the US market.Last year, Standard & Poor's estimated the value of the asset-backed securities market at A$895 million in 2011, down from A$1.13 billion in 2010.