Annaly Capital Management, Inc. is a mortgage real estate investment trust that primarily owns, manages and finances a portfolio of real-estate-related investment securities. Its investment portfolio includes mortgage pass-through certificates, collateralized mortgage obligations, credit risk transfer. The company's investment may also comprise, other securities indicating interests in or obligations backed by pools of mortgage loans, residential mortgage loans, MSR and corporate debt. Annaly has three investment groups: Agency, Residential Credit and Middle Market Lending. The Annaly Agency Group makes investments in Agency MBS, collateralized by residential mortgages. The Residential Credit Group invests in non-Agency residential whole loans and securitized products in the residential markets, while the Annaly Middle Market Lending Group offers financing to private equity-backed middle-market businesses, focused primarily on senior debt within select industries.