American Capital Agency to Ring NASDAQ Closing Bell in Celebration of Two Years as a Publicly Traded Company

May 14, 2010

BETHESDA, Md., May 14, 2010 /PRNewswire via COMTEX/ --American Capital Agency Corp. (Nasdaq: AGNC) ("AGNC" or the "Company") announced today that Malon Wilkus, Chief Executive Officer and Chairman, and Gary Kain, Chief Investment Officer, will preside over the May 17, 2010 NASDAQ closing bell ceremony. Joining Messrs. Wilkus and Kain will be members of the Board of Directors and management team.

"Since its initial public offering in May 2008 at $20 per share, AGNC has paid a total of $9.06 per share in dividends and generated a total return of 89% (1) for its shareholders. AGNC's performance is a testament to the Company's focus on balancing the generation of attractive risk-adjusted returns and the preservation of book value," said Mr. Wilkus.

"Our ability to invest across the agency securities spectrum coupled with our relative value approach to asset selection has allowed us to generate positive returns for our shareholders. I am honored to join Malon, the Board of Directors, and the rest of the management team in representing AGNC as we celebrate two years listed on NASDAQ," said Mr. Kain.

The ceremony will begin at 3:50 p.m. Eastern Time, with remarks from Messrs. Wilkus and Kain just prior to the closing at 4:00 p.m. A live webcast of the NASDAQ Closing Bell will be available at: http://www.nasdaq.com/reference/marketsite_about.stm.

ABOUT AMERICAN CAPITAL AGENCY

American Capital Agency is a REIT 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 Agency Management, LLC, an affiliate of American Capital, Ltd. ("American Capital"). For further information, please refer to http://www.agnc.com/.

ABOUT AMERICAN CAPITAL

American Capital 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. Founded in 1986, American Capital currently has $14 billion (2) in capital resources under management and eight offices in the U.S., Europe and Asia. For further information, please refer to http://www.americancapital.com/.

(1) Total return of AGNC common stock from initial public offering price on May 14, 2008 through March 31, 2010, assuming reinvestment of dividends

(2) As of March 31, 2010

Investors - (301) 968-9300

SOURCE: American Capital Agency Corp.