American Capital Agency Corp. Announces Estimated Net Book Value of $25.12 per Common Share as of April 30, 2015

May 12, 2015

BETHESDA, Md., May 12, 2015 /PRNewswire/ -- American Capital Agency Corp. (Nasdaq: AGNC) ("AGNC" or the "Company") announced today its estimated net book value of $25.12 per share of common stock as of April 30, 2015.  The estimated net book value of $25.12 was calculated after deducting the Company's April 2015 dividend of $0.22 per common share and May 2015 dividend of $0.20 per common share, which were declared on April 13, 2015 and April 27, 2015, respectively, to common stockholders of record as of April 30, 2015 and May 29, 2015, respectively.  The Company's estimated net book value per common share as of April 30, 2015 would be $25.32 after deducting only the April 2015 common stock dividend, and not the May 2015 common stock dividend, which was declared one month early.

The estimated net book value per common share is the Company's total estimated stockholders' equity, less the preferred stock liquidation preference, divided by the number of common shares outstanding as of period end. The estimated net book value per common share is unaudited and has not been verified or reviewed by any third party. The Company's current net book value may also be materially different from its estimated net book value as of April 30, 2015.  The Company undertakes no obligation to update or revise its estimated net book value.

For further information or questions, please contact the AGNC Investor Relations Department at (301) 968-9300 or IR@AGNC.com.

ABOUT AMERICAN CAPITAL AGENCY CORP.
American Capital Agency Corp. is a real estate investment trust that invests in agency pass-through securities and collateralized mortgage obligations for which the principal and interest payments are guaranteed by a U.S. Government agency or a U.S. Government-sponsored entity. The Company is externally managed and advised by American Capital AGNC Management, LLC, an affiliate of American Capital, Ltd. ("American Capital"). For further information, please refer to www.AGNC.com.

ABOUT AMERICAN CAPITAL
American Capital, Ltd. (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, energy & infrastructure and structured products.  American Capital manages $23 billion of assets, including assets on its balance sheet and fee earning assets under management by affiliated managers, with $92 billion of total assets under management (including levered assets).  Through a wholly-owned affiliate, American Capital manages publicly traded American Capital Agency Corp. (Nasdaq: AGNC), American Capital Mortgage Investment Corp. (Nasdaq: MTGE) and American Capital Senior Floating, Ltd. (Nasdaq: ACSF) with approximately $11 billion of total net book value.  From its eight offices in the U.S., Europe and Asia, American Capital and its wholly-owned affiliate, European Capital, will consider investment opportunities from $10 million to $600 million.  For further information, please refer to www.AmericanCapital.com

FORWARD LOOKING STATEMENTS
This press release contains forward-looking statements.  Forward-looking statements are based on estimates, projections, beliefs and assumptions of management of the Company at the time of such statements and are not guarantees of future performance.  Forward-looking statements involve risks and uncertainties in predicting future results and conditions.  Actual results could differ materially from those projected in these forward-looking statements due to a variety of important factors, including, without limitation, changes in interest rates, changes in the yield curve, changes in prepayment rates, the availability and terms of financing, changes in the market value of the Company's assets, general economic conditions, market conditions, conditions in the market for agency securities, and legislative and regulatory changes that could adversely affect the business of the Company.  Certain factors that could cause actual results to differ materially from those contained in the forward-looking statements, are included in the Company's periodic reports filed with the Securities and Exchange Commission ("SEC").  Copies are available on the SEC's website, www.sec.gov.  The Company disclaims any obligation to update or revise any forward-looking statements based on the occurrence of future events, the receipt or new information, or otherwise.

CONTACT:
Investor Relations - (301) 968-9300

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SOURCE American Capital Agency Corp.