Chimera Investment Corporation operates as a real estate investment trust REIT in the United States The company through its subsidiaries invests in a portfolio of mortgage assets including residential mortgage loans agency and nonagency residential mortgagebacked securities agency mortgagebacked securities secured by pools of residential commercial mortgage loans and other real estate related securities It has elected to be taxed as a REIT In addition the company invests in investment noninvestment grade and nonrated classes The company was incorporated in 2007 and is based in New York New York