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Nuveen Municipal High Income Opportunity Fund

NMZ
Exchange
NYSE
SEC CIK
0001266585

In the last 90 days, Nuveen Municipal High Income Opportunity Fund insiders filed 3 open-market purchases and 3 sales; 213 institutions reported holding it in 13F filings for Q2 2026, worth $358.6M in total; no superinvestor holds it.

13F holders, Q2 2025

Institutional positions in Nuveen Municipal High Income Opportunity Fund as of Jun 30, 2025. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
127
−4 vs. Q1 2025
Shares held
17.2M
−90.3K (−0.5%) vs. Q1 2025
Total value
$178.2M
−$10.4M (−5.5%) vs. Q1 2025
New holders
14
47 more added
Sold out
18
26 more reduced

2 institutions that held it in Q1 2025 haven't filed for Q2 2025 yet. Not filing isn't selling, so they aren't counted as sold out or in the changes above.

Compare with Q1 2025: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting NMZ on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ2 2025: 127 institutions
Q1 2021: 110 institutionsQ2 2021: 109 institutionsQ3 2021: 115 institutionsQ4 2021: 124 institutionsQ1 2022: 111 institutionsQ2 2022: 119 institutionsQ3 2022: 121 institutionsQ4 2022: 127 institutionsQ1 2023: 122 institutionsQ2 2023: 112 institutionsQ3 2023: 114 institutionsQ4 2023: 133 institutionsQ1 2024: 117 institutionsQ2 2024: 120 institutionsQ3 2024: 123 institutionsQ4 2024: 127 institutionsQ1 2025: 133 institutionsQ2 2025: 127 institutionsQ3 2025: 124 institutionsQ4 2025: 130 institutionsQ1 2026: 138 institutionsQ2 2026: 213 institutions
Value heldQ2 2025: $178.2M
Q1 2021: $121.9MQ2 2021: $139.8MQ3 2021: $144.6MQ4 2021: $155.9MQ1 2022: $135.6MQ2 2022: $126.0MQ3 2022: $110.2MQ4 2022: $126.8MQ1 2023: $148.6MQ2 2023: $142.7MQ3 2023: $126.6MQ4 2023: $152.2MQ1 2024: $165.4MQ2 2024: $169.4MQ3 2024: $186.7MQ4 2024: $180.7MQ1 2025: $188.9MQ2 2025: $178.2MQ3 2025: $184.9MQ4 2025: $193.0MQ1 2026: $209.4MQ2 2026: $358.6M
Institutions holding NMZ and their total value by quarter
QuarterHoldersValue
Q2 2026213$358.6M
Q1 2026138$209.4M
Q4 2025130$193.0M
Q3 2025124$184.9M
Q2 2025127$178.2M
Q1 2025133$188.9M
Q4 2024127$180.7M
Q3 2024123$186.7M
Q2 2024120$169.4M
Q1 2024117$165.4M
Q4 2023133$152.2M
Q3 2023114$126.6M
Q2 2023112$142.7M
Q1 2023122$148.6M
Q4 2022127$126.8M
Q3 2022121$110.2M
Q2 2022119$126.0M
Q1 2022111$135.6M
Q4 2021124$155.9M
Q3 2021115$144.6M
Q2 2021109$139.8M
Q1 2021110$121.9M

Institutions, Q2 2025

Shares, value and share of portfolio for each institution holding Nuveen Municipal High Income Opportunity Fund; share changes are against Q1 2025.

Institutions holding NMZ in Q2 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Citadel Advisors LLC10,509$109.0K0.00%−5,838−35.7%Reduced
Sage Capital Management, LLC10,500$108.9K0.05%00.0%Unchanged
Snowden Capital Advisors LLC10,291$107.4K0.00%00.0%Unchanged
Cito Capital Group, LLC10,000$104.0K0.04%00.0%Unchanged
Colonial River Wealth Management, LLC10,000$103.9K0.04%+10,000New
Intellus Advisors LLC10,000$103.7K0.02%00.0%Unchanged
Axxcess Wealth Management, LLC10,000$103.7K0.00%+10,000New
Diversify Wealth Management, LLC10,000$101.0K0.01%00.0%Unchanged
Beacon Capital Management, LLC6,717$69.7K0.01%00.0%Unchanged
N.E.W. Advisory Services LLC6,000$62.2K0.01%00.0%Unchanged
Farther Finance Advisors, LLC3,347$34.7K0.00%00.0%Unchanged
US Bancorp3,000$31.1K0.00%−1,600−34.8%Reduced
CoreCap Advisors, LLC2,750$28.5K0.00%00.0%Unchanged
Comerica Bank2,250$23.3K0.00%00.0%Unchanged
CWM, LLC1,924$20.0K0.00%00.0%Unchanged
Creekmur Asset Management LLC1,833$19.0K0.00%00.0%Unchanged
Webster Bank, N. A.1,500$15.6K0.00%00.0%Unchanged
Private Trust Co NA1,200$12.4K0.00%00.0%Unchanged
Sound Income Strategies, LLC1,062$11.0K0.00%+20+1.9%Added
Manchester Capital Management LLC1,000$10.4K0.00%00.0%Unchanged
Trust Co of Toledo NA1,000$10.4K0.00%+1,000New
IFP Advisors, Inc700$7.26K0.00%00.0%Unchanged
CoreFirst Bank & Trust403$4.18K0.00%+403New
SRS Capital Advisors, Inc.339$3.52K0.00%00.0%Unchanged
Global Retirement Partners, LLC329$3.41K0.00%+329New
Tower Research Capital LLC (TRC)19$1970.00%+19New
Key Financial Inc11$1140.00%00.0%Unchanged
Atria Wealth Solutions, Inc.0$00.00%−339,811−100.0%Sold out
Park Avenue Securities LLC0$00.00%−178,752−100.0%Sold out
Integrated Capital Management, Inc.0$00.00%−37,565−100.0%Sold out
Advisor Resource Council0$00.00%−27,025−100.0%Sold out
Elequin Capital LP0$00.00%−23,541−100.0%Sold out
Sage Private Wealth Group, LLC0$00.00%−18,986−100.0%Sold out
MML Investors Services, LLC0$00.00%−16,363−100.0%Sold out
Thrivent Financial for Lutherans0$00.00%−12,530−100.0%Sold out
HRT Financial LP0$00.00%−12,859−100.0%Sold out
Catalina Capital Group, LLC0$00.00%−10,797−100.0%Sold out
Cerity Partners LLC0$00.00%−10,418−100.0%Sold out
First Foundation Advisors0$00.00%−10,000−100.0%Sold out
Huntington National Bank0$00.00%–Sold out
Chilton Capital Management LLC0$00.00%−2,000−100.0%Sold out
Cullen/Frost Bankers, Inc.0$00.00%−1,737−100.0%Sold out
Bokf, NA0$00.00%−403−100.0%Sold out
Runnymede Capital Advisors, Inc.0$00.00%−232−100.0%Sold out
BOK Financial Private Wealth, Inc.0$00.00%0Sold out
Monterey Private Wealth, Inc.––––Not filed
Noble Wealth Management PBC––––Not filed