CYS Investments, Inc. (NYSE: CYS) (the "Company") today announced that it plans to make a public offering of shares of its Series A Cumulative Redeemable Preferred Stock (the “Series A Preferred Stock”). The Company intends to apply to list the Series A Preferred Stock on the New York Stock Exchange under the symbol “CYS PrA.” Morgan Stanley & Co. LLC, Citigroup Global Markets Inc. and UBS Securities LLC are acting as joint book-running managers for the offering. RBC Capital Markets, LLC, Stifel, Nicolaus & Company, Incorporated, Barclays Capital Inc., Credit Suisse Securities (USA) LLC and Deutsche Bank Securities Inc. are acting as co-managers. The Company intends to use the net proceeds of the offering to invest in Agency RMBS and for general corporate purposes. The offering will be made pursuant to the Company's existing shelf registration statement previously filed with the Securities and Exchange Commission that became effective upon filing. This press release is neither an offer to sell nor a solicitation of an offer to buy shares of Series A Preferred Stock. The offering of these securities will be made only by means of a prospectus and a related prospectus supplement, a copy of which may be obtained by contacting: Morgan Stanley & Co. LLCAttention: Prospectus Department1585 BroadwayNew York, NY 10036-6775Email: email@example.comTelephone: (866) 718-1649 Citigroup Global Markets Inc.Attention: Prospectus DepartmentBrooklyn Army Terminal140 East 58 th Street, 8 th FloorBrooklyn, NY 11220Email: BATProspectusdept@citi.comTelephone: (877) 858-5407 UBS Securities LLCAttention: Prospectus Department299 Park AvenueNew York, NY 10171Telephone: (877) 827-6444, ext. 561-3884 The prospectus supplement and the accompanying prospectus shall not constitute an offer to sell or the solicitation of an offer to buy, nor shall there be any sale of these securities in any state in which such offer, solicitation or sale would be unlawful prior to registration or qualification under the securities laws of any such state.