Nuveen Quality Preferred Income Fund is a closed ended fixed-income mutual fund launched by Nuveen Investments Inc. It is managed by Spectrum Asset Management Inc. The fund invests in the fixed income markets of the United States. It primarily invests in the taxable preferred securities rated investment grade Baa/BBB or better. Nuveen Quality Preferred Income Fund was formed on June 15, 2002 and is domiciled in the United States.