Nuveen Select Maturities Municipal Fund is a closed-ended fixed income mutual fund launched by Nuveen Investments, Inc. and co-managed by Nuveen Fund Advisors LLC and Nuveen Asset Management, LLC. The fund focuses on the U.S. fixed income market, primarily investing in municipal securities rated Baa/BBB or better, which provide income exempt from federal income tax. The firm employs a fundamental analysis approach with bottom-up stock picking.