BlackRock MuniHoldings New Jersey Insured Fund, Inc. is a close ended fixed income mutual fund launched by BlackRock, Inc. The fund is co-managed by BlackRock Advisors, LLC and Blackrock Financial Management Inc. It invests in the fixed income markets of United States. The fund invests primarily in long-term municipal obligations. BlackRock MuniHoldings New Jersey Insured Fund was formed in 1998 and is domiciled in United States.