Nuveen Select Tax Free Income Portfolio operates as a closed-end investment fund/investment trust. It engages in the provision of current income exempted from regular federal income tax, consistent with preservation of capital by investing all of its assets in long-term municipal obligations with investment-grade ratings. The company was founded on March 19, 1992 and is headquartered in Chicago, IL.
Fundamental metrics to determine fair value of the stock
Company’s recent performance and margins
Dividend yield, history and sustainability
Financial position and solvency of the company