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 the 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.