Orchid Island Capital, Inc. is a specialty finance company that invests in residential mortgage-backed securities (RMBS). The Company's business objective is to provide attractive risk-adjusted total returns to its investors over the long term through a combination of capital appreciation and the payment of regular monthly distributions. Its portfolio consists of two categories of Agency RMBS: pass-through Agency RMBS and structured Agency RMBS. It invests in pass-through securities, which are securities secured by residential real property in which payments of both interest and principal on the securities are generally made monthly. The mortgage loans underlying pass-through certificates are classified into three categories, including fixed-rate mortgages, adjustable-rate mortgages (ARMs) and Hybrid ARMs. It invests in structured Agency RMBS, which include collateralized mortgage obligations, interest only securities, inverse interest only securities and principal only securities.