About Nuveen Select Tax-Free Income Portfolio

Nuveen Select Tax-Free Income Portfolio operates as a closed-end management investment company. The company’s investment adviser is Nuveen Fund Advisors, LLC. The company invests in municipal securities that are exempt from federal income taxes. The company invests approximately 80% of its managed assets in municipal securities rated investment grade at the time of investment, or, if they are unrated, are judged by the manager to be of comparable quality. The company might invest approximately 20% of its managed assets in municipal securities rated below investment quality or judged by the manager to be of comparable quality, of which approximately 10% of its managed assets might be rated below B-/B3 or of comparable quality. The company might invest in inverse floating rate municipal securities, also known as tender option bonds. History Nuveen Select Tax-Free Income Portfolio was founded in 1992.