Closed-End Investment Fund/Investment Trust
Nuveen Insured Municipal Opportunity Fund, Inc. is a closed-end management investment company. The company seeks current income exempt from regular federal income tax. The secondary investment objective is the enhancement of portfolio value. Nuveen Insured Municipal Opportunity Fund invests its assets in tax-exempt municipal obligations which are either insured as to the timely payment of principal and interest. It also invests in certain derivative investments in pursuit of its investment objectives. The company was founded on September 19, 1991 and is headquartered in Chicago, IL.