Historical stock prices for Invesco Insured Muni Trust (IMC). Invesco Value Municipal Bond Trust (the Trust), formerly Invesco Insured Municipal Bond Trust, is a non-diversified, closed-end management investment company. The Trust's investment objective is to provide current income, which is exempt from federal income tax. The Trust seeks to achieve the investment objective by investing primarily in insured municipal obligations that are rated A or higher by at least one nationally recognized statistical rating organization. Municipal obligations include municipal bonds, municipal notes, municipal commercial paper and lease obligations. The Trust may invest in taxable or tax-exempt investment-grade securities. From time to time, the Trust may invest in municipal securities that pay interest that is subject to the federal alternative minimum tax. The Trust's investment advisor is Invesco Advisers, Inc.