Form: 10-Q

Quarterly report pursuant to Section 13 or 15(d)

May 14, 2008

EXHIBIT 32.2

Published on May 14, 2008


Exhibit 32.2

CHIMERA INVESTMENT CORPORATION
1211 AVENUE OF THE AMERICAS
SUITE 2902
NEW YORK, NEW YORK 10036


CERTIFICATION

PURSUANT TO SECTION 906 OF THE

SARBANES-OXLEY ACT OF 2002, 10 U.S.C. SECTION 1350

In connection with the quarterly report on Form 10-Q of Chimera
Investment Corporation (the "Company") for the period ended March 31, 2008 to be
filed, I, A. Alexandra Denahan, Chief Financial Officer of the Company, certify,
pursuant to Section 906 of the Sarbanes-Oxley Act of 2002, 18 U.S.C. Section
1350, that:

1. The Report fully complies with the requirements of Section 13(a)
or 15(d) of the Securities Exchange Act of 1934; and

2. The information contained in the Report fairly presents, in all
material respects, the financial condition and results of operations of
the Company at the dates of, and for the periods covered by, the
Report.

It is not intended that this statement be deemed to be filed for purposes of the
Securities Exchange Act of 1934.


/s/ A. Alexandra Denahan
------------------------
A. Alexandra Denahan
Chief Financial Officer
May 14, 2008

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