|FEDERAL NATIONAL MORTGAGE ASSOCIATION FANNIE MAE filed this Form 10-Q on 08/05/2011|
NOTES TO CONDENSED CONSOLIDATED FINANCIAL STATEMENTS(Continued)
$27.3 billion and $15.1 billion, respectively. For the six months ended June 30, 2011 and 2010, the unpaid principal balance of portfolio securitizations was $56.6 billion and $32.9 billion, respectively.
The majority of our portfolio securitization transactions do not qualify for sale treatment. As a result, our continuing involvement in the form of guaranty assets and guaranty liabilities with assets that were transferred into unconsolidated trusts is not material. We report the assets and liabilities of consolidated trusts created via portfolio securitization transactions that do not qualify as sales in our condensed consolidated balance sheets.
The following table displays some key characteristics of the securities retained in unconsolidated portfolio securitization trusts.
For the three months ended June 30, 2011 and 2010, the principal and interest received on retained interests was $715 million and $887 million, respectively. For the six months ended June 30, 2011 and 2010, the principal and interest received on retained interests was $1.5 billion and $1.7 billion, respectively.