BlackRock Municipal 2018 Term Trust operates as a diversified closed-end management investment company. It invests primarily in various municipal securities. The trust's investment portfolio comprises investments in hospital, industrial and pollution control, city, county and state, housing, power, education, transportation, tax revenue, lease revenue, and other sectors. BlackRock Advisors, Inc. serves as the investment advisor of the trust. BlackRock Municipal 2018 Term Trust was founded in 2001 and is based in New York, New York.