American Capital Mortgage Investment Corp. Declares Second Quarter Dividend of $0.80 Per Share

American Capital Mortgage Investment Corp. Declares Second Quarter Dividend of
                               $0.80 Per Share

PR Newswire

BETHESDA, Md., June 18, 2013

BETHESDA, Md., June 18, 2013 /PRNewswire/ --American Capital Mortgage
Investment Corp. (Nasdaq: MTGE) ("MTGE" or the "Company") announced today that
its Board of Directors has declared a cash dividend of $0.80 per share for the
second quarter 2013. The dividend is payable on July 26, 2013 to common
shareholders of record as of June 28, 2013, with an ex-dividend date of June
26, 2013.

For further information or questions, please contact our Investor Relations
Department at (301) 968-9220 or IR@MTGE.com.

ABOUT AMERICAN CAPITAL MORTGAGE INVESTMENT CORP.

American Capital Mortgage Investment Corp. is a real estate investment trust
formed in 2011 that invests in and manages a leveraged portfolio of agency
mortgage investments, non-agency mortgage investments and other
mortgage-related investments. The Company is externally managed and advised
by American Capital MTGE Management, LLC, an affiliate of American Capital,
Ltd. ("American Capital"). For further information please refer to
www.MTGE.com.

ABOUT AMERICAN CAPITAL
American Capital (Nasdaq: ACAS) is a publicly traded private equity firm and
global asset manager. American Capital, both directly and through its asset
management business, originates, underwrites and manages investments in middle
market private equity, leveraged finance, real estate and structured
products. American Capital manages $21.2 billion of assets, including assets
on its balance sheet and fee earning assets under management by affiliated
managers, with $112 billion of total assets under management (including
levered assets). From its eight offices in the U.S. and Europe, American
Capital and its affiliate, European Capital, will consider investment
opportunities from $10 million to $750 million. For further information,
please refer to www.AmericanCapital.com.

CONTACT:
Investor Relations – (301) 968-9220

SOURCE American Capital Mortgage Investment Corp.

Website: http://www.mtge.com