Hatteras Financial Corp. is an externally managed mortgage real estate investment trust (REIT) that invests primarily in single-family residential mortgage pass-through securities guaranteed or issued by the United States Government agency (such as the Government National Mortgage Association (Ginnie Mae)), or by the United States Government-sponsored entity (such as the Federal National Mortgage Association, (Fannie Mae)), and the Federal Home Loan Mortgage Corporation, (Freddie Mac)). The Company is externally managed and advised by its manager, Atlantic Capital Advisors LLC. The Company focuses on agency securities consisting of mortgage loans with short durations. The agency securities consist of mortgages that have principal and interest payments guaranteed by Ginnie Mae, Fannie Mae or Freddie Mac. It invests in both fixed-rate and adjustable-rate agency securities.