 GLEN ALLEN, Va.--BUSINESS WIRE--Dynex Capital, Inc. NYSE: DX the Company announced today that it intends to make a public offering of 2,750,000 shares of its common stock. In connection with the offering, the Company intends to grant the underwriters a 30-day option to purchase up to an additional 412,500 shares of its common stock. J.P. Morgan is acting as the sole book-running manager for the offering. The offering is being made pursuant to the Companys existing shelf registration st 