NMZ - Nuveen Municipal High Income Opportunity Fund
A closed-end fund run by Nuveen. Invests in tax-free municipal bonds. Listed on the New York Stock Exchange.
Is anyone targeting this fund?
No - nobody has reported owning 5% or more of this fund.
Is the fund doing anything you need to act on?
Nothing right now.
What this means for you
No investor has reported owning 5% or more of this fund. That is the normal state for most closed-end funds.
Nothing is required of you. If that changes, the notice appears here within a day of being filed with the regulator.
What happened, and when
-
May 1, 2026
The fund said it will repay some borrowed money on June 2, 2026.
Original document → -
April 24, 2026
The fund said it may sell new shares.
Original document → -
Dec 18, 2025
The fund said it may sell new shares.
Original document → -
Dec 16, 2025
The fund proposed taking in NXJ, NQP, NOM; holders of that fund would become holders of this one. Holders vote on Jan 16, 2026.
Original document → -
Nov 18, 2025
The fund proposed taking in NXJ, NQP, NOM; holders of that fund would become holders of this one. Holders vote on Jan 16, 2026.
Original document →
Show all 11 events
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Oct 31, 2025
The fund said it will repay some borrowed money on Dec 1, 2025.
Original document → -
Sept 29, 2025
The fund proposed taking in NXJ, NQP, NOM; holders of that fund would become holders of this one. Holders vote on Jan 16, 2026. Latest document Feb 4, 2026.
Original document → -
May 9, 2025
The fund said it may sell new shares.
Original document → -
April 28, 2025
The fund said it will repay some borrowed money on May 28, 2025.
Original document → -
Oct 31, 2024
The fund said it may sell new shares.
Original document → -
Oct 28, 2024
The fund said it will repay some borrowed money on Nov 27, 2024.
Original document →
About this fund
- Run by Nuveen Fund Advisors, LLC. Part of the Nuveen fund family. As of Oct 31, 2025, from the fund's yearly report. Original document →
- Size: about $2.23 billion of holdings, as of April 30, 2026. As of April 30, 2026, from the fund's quarterly holdings report. Original document →
- Borrowing: the fund borrows about 40% on top of its own money, as of April 30, 2026. Borrowed money makes gains and losses bigger. About 54% of that is money the fund has borrowed by selling preferred shares. As of April 30, 2026, from the fund's quarterly holdings report. Original document →
- Costs: 0.6% a year in management fees; 3.5% a year in total, including interest on borrowed money. Fiscal year ended Oct 31, 2025. As of Oct 31, 2025, from the fund's yearly report. Original document →
- Payouts: last fiscal year (ended Oct 31, 2025) the fund paid $0.79 a share. $0.60 of that was income; $0.19 was your own money back, not income. As of Oct 31, 2025, from the fund's annual report. Original document →
- Value of holdings per share at the last fiscal year end (Oct 31, 2025): $10.61. The shares traded at $10.65, about 0.4% above that.
As of Oct 31, 2025, from the fund's yearly report. Original document →
Over the last two years the gap ranged from 10.1% below to 1.6% above. As of Oct 31, 2025, from the fund's annual report. Original document → - How the holdings did: up 1.2% over the last three months we have (Feb-April 2026), before the share price is taken into account. Over the last 12 months: +7.2%. As of April 30, 2026, from the fund's quarterly holdings report. Original document →
- How the holdings did over the fiscal year (ended Oct 31, 2025): the value of the holdings returned +2.2%. How the share price did: the shares returned +2.9% over the same year, counting payouts and the change in the market price. As of Oct 31, 2025, from the fund's annual report. Original document →
- First reported to the regulator in 2003.
What the fund holds
Almost all tax-free municipal bonds (100%). About 100% issued in the U.S.
4% of holdings are in default.
- Puerto Rico Sales Tax Financing Corporation, Sales Tax Revenue Bonds, Restructured 2018A-1 - 1.9%
- New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Refunding - 4%
- New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Capital Appreciation - 1.2%
- State Public School Building Authority, Pennsylvania, Lease Revenue Bonds, Philadelphia School District - 1%
- Iowa Finance Authority, Iowa, Midwestern Disaster Area Revenue Bonds, Iowa Fertilizer Company Project, Refunding - 0.9%
- Kentucky Economic Development Finance Authority, Hospital Revenue Bonds, Owensboro Health, Refunding - 0.8%
- New York Transportation Development Corporation, New York, Special Facilities Bonds, LaGuardia Airport Terminal B Redevelopment Project - 0.8%
- Nuveen High Yield Municipal Bond ETF - 0.8%
- CSCDA Community Improvement Authority, California, Essential Housing Revenue Bonds, Altana Glendale, Series 2021A-2 - 0.7%
- Puerto Rico Sales Tax Financing Corporation, Sales Tax Revenue Bonds, Taxable Restructured Cofina Project Series 2019A-2 - 0.7%
Show all 23
- Public Finance Authority of Wisconsin, Limited Obligation PILOT Revenue Bonds, American Dream @ Meadowlands Project - 0.7%
- South Miami Health Facilities Authority, Florida, Hospital Revenue Bonds, Baptist Health Systems of South Florida Obligated Group, Refunding - 0.7%
- Tulsa Municipal Airport Trust, Oklahoma, Revenue Bonds, American Airlines Inc., Refunding - 0.7%
- Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, University of Pennsylvania Health System, Refunding - 0.6%
- Metropolitan Pier and Exposition Authority, Illinois, McCormick Place Expansion Project Bonds, Refunding - 0.6%
- Hoover Industrial Development Board, Alabama, Environmental Improvement Revenue Bonds, United States Steel Corporation Proejcet - 0.6%
- Washington Health Care Facilities Authority, Revenue Bonds, Seattle Cancer Center Alliance - 0.6%
- New Jersey Health Care Facilities Financing Authority, Revenue Bonds, Inspira Health Obligated Group Issue - 0.6%
- Middlesex County Improvement Authority, New Jersey, General Obligation Lease Revenue Bonds, New Jersey Health + Life Science Exchange - H-1 Project Se - 0.6%
- Union County Improvement Authority, New Jersey, Lease Revenue Bonds, Plainfield - Park Madison Redevelopment Project, Refunding - 0.6%
- Buckeye Tobacco Settlement Financing Authority, Ohio, Tobacco Settlement Asset-Backed Revenue Bonds, Refunding Senior Lien Series 2020B-2 Class 2 - 0.6%
- Houston, Texas, Hotel Occupancy Tax and Special Revenue Bonds, Convention and Entertainment Facilities Department, Refunding First Lien - 0.6%
- Tobacco Settlement Financing Corporation, New Jersey, Tobacco Settlement Asset-Backed Bonds - 0.6%
As of April 30, 2026, from the fund's quarterly holdings report. Original document →
Details: all notices, events and fund facts
No notices from large investors on file.
| Date | What | Deadline | Document |
|---|---|---|---|
| May 1, 2026 | Repaying borrowed money | June 2, 2026 | Original document → |
| April 24, 2026 | May sell new shares | none | Original document → |
| Dec 18, 2025 | May sell new shares | none | Original document → |
| Dec 16, 2025 | Plan to take in NXJ, NQP, NOM | Jan 16, 2026 | Original document → |
| Nov 18, 2025 | Plan to take in NXJ, NQP, NOM | Jan 16, 2026 | Original document → |
| Oct 31, 2025 | Repaying borrowed money | Dec 1, 2025 | Original document → |
| Sept 29, 2025 | Plan to take in NXJ, NQP, NOM | Jan 16, 2026 | Original document → |
| May 9, 2025 | May sell new shares | none | Original document → |
| April 28, 2025 | Repaying borrowed money | May 28, 2025 | Original document → |
| Oct 31, 2024 | May sell new shares | none | Original document → |
| Oct 28, 2024 | Repaying borrowed money | Nov 27, 2024 | Original document → |
- Run by
- Nuveen Fund Advisors, LLC
- Fund family
- Nuveen Funds
- Exchange
- New York Stock Exchange
- Regulator's file number
- 811-21449
- Auditor
- PricewaterhouseCoopers LLP
- Fiscal year end
- Oct 31, 2025
- Number of holdings
- 1,470
- Preferred share classes
- 1
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