PennyMac Mortgage Investment Trust (NYSE: PMT) will announce results for the quarter and year ended December 31, 2010 in a news release to be issued at 5:30 a.m. PST (8:30 a.m. EST) on Wednesday, February 2, 2011. The release will be available online at www.pennymacmortgageinvestmenttrust.com.

PennyMac executives will also review the quarter and full year in a recorded presentation. The recording and accompanying slide presentation will be available on the Company's website concurrently with the news release.

Individuals who are unable to access the website but would like to receive a copy of the slide presentation should contact the Company's Investor Relations department at 818-224-7028.

About PennyMac Mortgage Investment Trust

PennyMac Mortgage Investment Trust is a mortgage real estate investment trust that invests primarily in residential mortgage loans and mortgage-related assets. The Company trades on the New York Stock Exchange under the symbol "PMT" and is externally managed by PNMAC Capital Management, LLC, a wholly owned subsidiary of Private National Mortgage Acceptance Company, LLC. Additional information about the Company is available at www.pennymacmortgageinvestmenttrust.com.

PennyMac Mortgage Investment Trust
Kevin Chamberlain
Managing Director, Corporate Communications
818-746-2877