ARMOUR Residential REIT, Inc. is a financial enterprise primarily engaged in acquiring residential mortgage-backed securities (MBS) within the United States. Its investment holdings predominantly comprise debt instruments issued or guaranteed by U.S. Government-sponsored entities (GSEs) and the Government National Mortgage Administration. These securities are underpinned by various types of home loans, including fixed-rate, hybrid adjustable-rate, and adjustable-rate mortgages. The portfolio also includes unsecured notes and bonds from GSEs, U.S. Treasury securities, and money market instruments. Additionally, the company allocates capital to other residential mortgage-backed securities whose principal and interest payments are not guaranteed by a GSE or any government agency. Having elected to be classified as a real estate investment trust (REIT) under the Internal Revenue Code, ARMOUR Residential REIT, Inc. is exempt from corporate income tax on the net income it distributes to its shareholders. The company was established in 2008 and operates from its headquarters in Vero Beach, Florida.