Arlington Asset Investment Corp is a U.S.-based principal investment company. The company holds a leveraged MBS investment portfolio, including Agency MBS, private-label MBS, private-label interest-only MBS, and net long TBA positions, with Agency MBS accounting for majority of total investment capital. Agency MBS consists of residential mortgage pass-through certificates, for which the U.S. government agency and government sponsored enterprise guarantee the principal and interest payments. The company generates the majority of its total interest income from Agency MBS, with the rest from private-label MBS and other investments. The company focuses its business in the United States.