BlackRock MuniHoldings Quality Fund II, Inc. is a closed ended fixed income mutual fund launched by BlackRock, Inc. It is managed by BlackRock Advisors, LLC. The fund invests in fixed income markets of the United States. It primarily invests in long-term, investment grade municipal obligations exempt from federal income taxes. The fund was formerly known as BlackRock MuniHoldings Insured Fund II, Inc. BlackRock MuniHoldings Quality Fund II, Inc. was formed on February 26, 1999 and is domiciled in United States.