Historical stock prices for Invesco Quality Muni Securities (IQM). Invesco Quality Municipal Securities (the Trust), formerly Morgan Stanley Quality Municipal Securities, is a 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 its investment objective by investing primarily in municipal obligations, which include municipal bonds, municipal notes and municipal commercial paper. It invests in a diversified portfolio of investment grade tax-exempt municipal securities. The Trust may also invest in inverse floating rate securities, such as residual interest bonds (RIBs) or tender option bonds (TOBs) for investment purposes, and may enter into futures contracts. Invesco Advisers, Inc. (Invesco) acts as the investment adviser of the Trust.