Dynex Capital, Inc., a mortgage real estate investment trust, invests in residential and commercial mortgage-backed securities (MBS) in the United States. Agency MBS have a guaranty of principal payment by an agency of the U.S. government or a U.S. government-sponsored entity, such as Fannie Mae and Freddie Mac. Non-Agency MBS do not have a guaranty of principal or interest payments. The company has qualified as a real estate investment trust for federal income tax purposes. It generally would not be subject to federal income taxes if it distributes at least 90% of its taxable income to its shareholders. The company was incorporated in 1987 and is headquartered in Glen Allen, Virginia.