The BlackRock MuniHoldings New Jersey Quality Fund, Inc. is a closed-end mutual fund focusing on fixed income, established by BlackRock, Inc. and managed by BlackRock Advisors, LLC. This fund primarily allocates capital within the United States fixed income markets, with a particular emphasis on long-term, high-quality municipal bonds that provide tax-exempt income from both federal and New Jersey personal income taxes. Established in 1998 and domiciled in the U.S., it was previously known as the BlackRock MuniHoldings New Jersey Insured Fund.