8-K

UNITED STATES

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

FORM 8-K

CURRENT REPORT PURSUANT

TO SECTION 13 OR 15(d) OF THE

SECURITIES EXCHANGE ACT OF 1934

December 30, 2009

Date of Report (Date of earliest event reported)

ANWORTH MORTGAGE ASSET CORPORATION.

(Exact Name of Registrant as Specified in its Charter)

Maryland

(State or Other Jurisdiction of Incorporation)

001-13709	52-2059785
(Commission File Number)	(IRS Employer Identification No.)

1299 Ocean Avenue, Second Floor, Santa Monica, California	90401
(Address of Principal Executive Offices)	(Zip Code)

(310) 255-4493

(Registrant’s Telephone Number, Including Area Code)

Check the appropriate box below if the Form 8-K filing is intended to simultaneously satisfy the filing obligation of the registrant under any of the following provisions:

¨ Written communications pursuant to Rule 425 under the Securities Act (17 CFR 230.425)

¨ Soliciting material pursuant to Rule 14a-12 under the Exchange Act (17 CFR 240.14a-12)

¨ Pre-commencement communications pursuant to Rule 14d-2(b) under the Exchange Act (17 CFR 240.14d-2(b))

¨ Pre-commencement communications pursuant to Rule 13e-4(c) under the Exchange Act (17 CFR 240.13e-4(c))

Item 8.01. Other Events.

On December 30, 2009, American Stock Transfer and Trust Company, as the Administrator of the Anworth Mortgage Asset Corporation 2009 Dividend Reinvestment and Stock Purchase Plan (the “Plan”), mailed a letter (the “Letter”) to all participants in the Plan notifying them of a change in the Small Cash Purchase Investment Date (as that term is defined in the Plan) and the filing of a new registration statement for the Plan. A copy of the Letter is filed herewith as Exhibit 99.1.

Item 9.01 Financial Statements and Exhibits.

(a)	Not Applicable.
(b)	Not Applicable.
(c)	Not Applicable.
(d)	Exhibits.
	Exhibit 99.1
	Letter dated December 28, 2009.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, hereunto duly authorized.

	ANWORTH MORTGAGE ASSET CORPORATION
Date: January 5, 2010	By:	/s/ Lloyd McAdams
		Chief Executive Officer

EXHIBIT INDEX

Exhibit #	Description
99.1	Letter dated December 28, 2009.

EX-99.1

EXHIBIT 99.1

ANWORTH MORTGAGE ASSET CORPORATION

December 28, 2009

Dear Plan Participant:

As a participant in the 2008 Anworth Mortgage Asset Corporation Dividend Reinvestment and Stock Purchase Plan (the “2008 Plan”), I am writing to inform you of an upcoming change. Effective starting with our next Small Cash Purchase Investment Date in January 2010, the Small Cash Purchase Investment Date will be on the 26^th of each month (or the following business day if the 26^th falls on a weekend or holiday) instead of the 10^th of each month. Any funds that are not received at least two (2) business days before the Small Cash Purchase Investment Date in any given month will be invested on the Small Cash Purchase Investment Date of the following month. Our Plan Administrator will hold such funds, without earning interest, until the Small Cash Purchase Investment Date of the following month.

On December 28, 2009, we filed a registration statement on Form S-3ASR (the “Registration Statement”) for a new Dividend Reinvestment and Stock Purchase Plan (the “New Plan”) with the U.S. Securities and Exchange Commission (the “SEC”). The Registration Statement contains a prospectus for the New Plan, which you can access from our website (http://www.anworth.com) or the SEC’s website (http://www.sec.gov), and which sets forth all of the details of the New Plan. The New Plan is substantially identical to the 2008 Plan, with the exception of the change in the Small Cash Purchase Investment Date noted above. If you wish to review all of the details of the New Plan, please see the prospectus for the New Plan, which is contained in the Registration Statement.

If you have any questions, please contact our Director of Investor Relations, John Hillman, at (310) 255-4438, or via email at jhillman@anworth.com. Thank you.

Sincerely,

Thad M. Brown

Chief Financial Officer

1299 Ocean Avenue, Second Floor, Santa Monica, California 90401

(310) 255-4493 Fax (310) 434—0070