Home ETFs and Funds Analysis Closed End Funds Analysis Summary Nuveen Municipal High Income Opportunity Fund (NMZ) offers tax-exempt yields currently translating to 6%-8% taxable-equivalent for many investors. I maintain a bullish outlook on NMZ, reflecting attractive muni yields and strong recent performance. NMZ’s primary objective is high current income exempt from regular federal tax, with a secondary focus on total return. Municipal bond yields remain above cash, supporting NMZ’s income proposition heading into 2026. This idea was discussed in more depth with members of my private investing community, CEF/ETF Income Laboratory. Learn More » Alex Cristi /iStock via Getty Images Main Thesis & Background The purpose of this article is to evaluate the Nuveen Municipal High Income Opportunity Fund ( NMZ ) as an investment option at its current market price.…