BlackRock Defined Opportunity Credit Trust is a closed ended fixed income mutual fund launched by BlackRock, Inc. The fund is managed by BlackRock Advisors, LLC. It invests in the public fixed income markets of the United States. The fund invests in the securities of companies operating across diversified sectors. It primarily invests in high yield and corporate bonds with an average credit rating of B by Standard & Poor s Corporation. BlackRock Defined Opportunity Credit Trust was formed on January 31, 2008 and is domiciled in the United States.