Nuveen Municipal High Income Opportunity Fund
Nuveen Municipal High Income Opportunity Fund
Fund classification
Classified from what the fund holds · as of 2026 Q2
Nuveen Municipal High Income Opportunity Fund is an actively managed U.S. bond closed-end fund.
- Asset class
- Bonds
- Region
- United States
- Management
- Actively managed
- Fund type
- Closed-end fund
- Credit quality
- Mixed credit
- Rate sensitivity
- Long duration
Fund profile
This fund files no prospectus profile. Unit investment trusts and closed-end funds register on forms that carry no objective or fee tagging, and some fund families file without it — a gap in what was filed, not a fund without an objective or without fees.
Allocation
Asset groups · long / short shown separately, never netted · 2026 Q2
| Bonds | 159.95% |
| Stocks | 0.75% |
| Derivatives | 0.00% |
These positions come to 160.70% of the fund's net assets. This counts only what the fund reported holding — the holdings disclosure covers assets, not liabilities such as borrowings — so it is not expected to reconcile to 100%.
Derivatives are shown at market value, not notional exposure.
Latest quarter
What changed since the fund's previous filing
Largest new: New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Refunding Series 2006C ×2, New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Capital Appreciation Series 2010A, State Public School Building Authority, Pennsylvania, Lease Revenue Bonds, Philadelphia School District, Series 2003, Pennsylvania Higher Educational Facilities Authority, Revenue Bonds, University of Pennsylvania Health System, Refunding Series 2016C, New Jersey Health Care Facilities Financing Authority, Revenue Bonds, Inspira Health Obligated Group Issue, Series 2017A, Middlesex County Improvement Authority, New Jersey, General Obligation Lease Revenue Bonds, New Jersey Health + Life Science Exchange - H-1 Project Se, Union County Improvement Authority, New Jersey, Lease Revenue Bonds, Plainfield - Park Madison Redevelopment Project, Refunding Series 2013A
Largest exited: New York Transportation Development Corporation, New York, Special Facility Revenue Bonds, John F Kennedy International Airport New Terminal 1 Project, Miami-Dade County, Florida, Seaport Revenue Bonds, Refunding Series 2022A, Babcock Ranch Community Independent Special District, Charlotte County, Florida, Special Assessment Bonds, 2022 Project Series 2022, New Hope Cultural Education Facilities Finance Corporation, Texas, Student Housing Revenue Bonds, CHF-Collegiate Housing Foundation - San Antonio 1, L, Gulf Coast Industrial Development Authority, Texas, Solid Waste Disposal Revenue Bonds, Citgo Petroleum Corporation Project, Series 1998, California Infrastructure and Economic Development Bank, Revenue Bonds, Brightline West Passenger Rail Project, Green Series 2025B, Capital Trust Agency, Florida, Revenue Bonds, Tuscan Gardens of Palm Coast Project, Series 2017A, Chicago, Illinois, Certificates of Participation, Tax Increment Allocation Revenue Bonds, Diversey-Narragansett Project, Series 2006
Return profile
Total return as filed — price change plus distributions reinvested · trailing figures to Apr 2026
Debt profile
What this fund holds — value-weighted across its bond and securitized long positions · as of 2026-04-30
Share of the fund's debt by how its coupon behaves — the fact that decides whether a rate move reaches this portfolio at all.
| Fixed rate | 98.1% |
| Floating rate | 1.9% |
Share of the fund's debt value in each maturity band, shortest first.
| <1y | 1.3% |
| 1-3y | 1.1% |
| 3-5y | 2.0% |
| 5-10y | 9.7% |
| 10y+ | 85.8% |
These three overlap — one holding can be in arrears and paying in kind at once — so they are shown separately and never summed.
Risk profile
Interest-rate and credit-spread sensitivity, both in years · as of 2026Q2
Most of this fund’s sensitivity is to interest rates, with credit spreads carrying nearly as much.
Where the loss would come from. The two shocks are the same size, so this is the balance of the fund's two sensitivities rather than a bet on one moving more.
| Interest rates | 53% |
| Credit spreads | 47% |
Filers report the impact of a 0.01% move only, so the total is our own scaling of that one number and overstates the loss on most bonds — read it as approximate, never as precise. The two sensitivities overlap rather than add up: they measure the same positions against different shocks, which is why the durations above are shown side by side and never summed.
Share of the fund's spread duration carried by each credit tier.
| Investment grade | +7.52 yr |
| High yield | +4.61 yr |
Share of duration at each point, shortest first. A positive figure loses value when spreads widen; a negative one offsets — a credit hedge.
| 3 mo | 0.18 yr | 1% |
| 1 yr | 0.65 yr | 5% |
| 5 yr | 2.03 yr | 15% |
| 10 yr | 6.31 yr | 46% |
| 30 yr | 4.53 yr | 33% |
| 3 mo | 0.01 yr | 0% |
| 1 yr | 0.05 yr | 0% |
| 5 yr | 0.42 yr | 3% |
| 10 yr | 3.54 yr | 29% |
| 30 yr | 8.11 yr | 67% |
The two bands measure the same positions against different shocks and do not add — a Treasury carries rate duration and no spread duration, a floating-rate credit the reverse. Rate tenors are also summed across every currency the fund discloses.
Show the numbers
| Tenor | Rate yrs | IG yrs | HY yrs | IG $/bp | HY $/bp |
|---|---|---|---|---|---|
| 3 mo | +0.18 | +0.01 | +0.00 | $1.6k | $185 |
| 1 yr | +0.65 | +0.05 | +0.00 | $10.3k | $975 |
| 5 yr | +2.03 | +0.37 | +0.05 | $83.0k | $10.7k |
| 10 yr | +6.31 | +2.51 | +1.03 | $560.6k | $230.1k |
| 30 yr | +4.53 | +4.58 | +3.53 | $1.02m | $787.2k |
Dollar change per 1bp of spread movement, as filed and sign-anchored. A blank cell was not filed; a zero was.
Holdings
By % of NAV · equity positions carry filed share counts · every resolvable issuer links to its company page
| Ticker | Issuer | %NAV | Reported price | Value | Shares |
|---|---|---|---|---|---|
| — | Puerto Rico Sales Tax Financing Corporation, Sales Tax Revenue Bonds, Restructured 2018A-10.00% · due 2051-07-01 | 1.86% | — | $41.59M | — |
| — | New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Refunding Series 2006C0.00% · due 2032-12-15 | 1.34% | — | $30.01M | — |
| — | New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Refunding Series 2006C0.00% · due 2033-12-15 | 1.33% | — | $29.63M | — |
| — | New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Refunding Series 2006C0.00% · due 2035-12-15 | 1.28% | — | $28.61M | — |
| — | New Jersey Transportation Trust Fund Authority, Transportation System Bonds, Capital Appreciation Series 2010A0.00% · due 2030-12-15 | 1.21% | — | $27.08M | — |
| — | State Public School Building Authority, Pennsylvania, Lease Revenue Bonds, Philadelphia School District, Series 20035.50% · due 2028-06-01 | 0.99% | — | $22.13M | — |
| — | Iowa Finance Authority, Iowa, Midwestern Disaster Area Revenue Bonds, Iowa Fertilizer Company Project, Refunding Series 20225.00% · due 2050-12-01 | 0.91% | — | $20.31M | — |
| — | Kentucky Economic Development Finance Authority, Hospital Revenue Bonds, Owensboro Health, Refunding Series 2017A5.00% · due 2041-06-01 | 0.77% | — | $17.17M | — |
| — | New York Transportation Development Corporation, New York, Special Facilities Bonds, LaGuardia Airport Terminal B Redevelopment Project, Series 2016A5.25% · due 2050-01-01 | 0.76% | — | $16.99M | — |
| — | Nuveen High Yield Municipal Bond ETF | 0.75% | $24.95 | $16.84M | 675.0K |
Reported price is the fund's own reported value divided by its own reported shares at 2026-04-30 — not a live quote, and not what the fund paid.
Top 10 positions are 11.21% of net assets, top 25 20.97%, across 1.2K issuers.
See more of this fund's book
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