BlackRock MuniHoldings New Jersey Quality Fund Inc is a close ended fixed income mutual fund launched by BlackRock Inc The fund is managed by BlackRock Advisors LLC It invests in the fixed income markets of United States The fund invests primarily in longterm investment grade municipal obligations exempt from federal income taxes and New Jersey personal income taxes The fund was formerly known as BlackRock MuniHoldings New Jersey Insured Fund BlackRock MuniHoldings New Jersey Quality Fund Inc was formed in 1998 and is domiciled in United States