Western Asset Mortgage Opportunity Fund Inc is a closed ended fixed income mutual fund launched and managed by Legg Mason Partners Fund Advisor LLC The fund is comanaged Western Asset Management Company and Western Asset Management Company Limited It invests in the fixed income markets of the United States The fund invests primarily in mortgagebacked securities It employs intensive proprietary research to create its portfolio The fund benchmarks the performance of its portfolio against the BofA Merrill Lynch US Floating Rate Home Equity Loan Asset Backed Securities Index Western Asset Mortgage Opportunity Fund Inc was formed on December 11 2009 and is domiciled in the United States