Nuveen Select Tax-Free Income Portfolio is a closed-end investment fund that primarily focuses on generating tax-exempt income for its shareholders

The fund primarily invests in a diversified portfolio of municipal bonds, which are debt securities issued by state and local governments. By selecting bonds that offer favorable yields, the portfolio aims to provide investors with attractive income while minimizing tax liabilities. The fund is designed for individuals seeking steady income streams and looking to enhance their overall investment strategies through tax-efficient means.