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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, Q3 2025

Institutional positions in Nuveen Municipal High Income Opportunity Fund as of Sep 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
124
−3 vs. Q2 2025
Shares held
18.7M
+1.49M (+8.7%) vs. Q2 2025
Total value
$184.9M
+$6.66M (+3.7%) vs. Q2 2025
New holders
13
47 more added
Sold out
16
33 more reduced

Compare with Q2 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 holdersQ3 2025: 124 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 heldQ3 2025: $184.9M
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, Q3 2025

Shares, value and share of portfolio for each institution holding Nuveen Municipal High Income Opportunity Fund; share changes are against Q2 2025.

Institutions holding NMZ in Q3 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Key Financial Inc11$1170.00%00.0%Unchanged
Tower Research Capital LLC (TRC)19$2010.00%00.0%Unchanged
American National Bank281$2.98K0.00%+281New
Global Retirement Partners, LLC329$3.48K0.00%00.0%Unchanged
CoreFirst Bank & Trust403$4.27K0.00%00.0%Unchanged
Johnson Financial Group, Inc.715$7.62K0.00%+715New
Trust Co of Toledo NA1,000$10.6K0.00%00.0%Unchanged
Manchester Capital Management LLC1,000$10.6K0.00%00.0%Unchanged
Turning Point Benefit Group, Inc.1,004$10.7K0.01%+1,004New
Sound Income Strategies, LLC1,089$11.6K0.00%+27+2.5%Added
Private Trust Co NA1,200$12.7K0.00%00.0%Unchanged
IFP Advisors, Inc1,450$15.4K0.00%+750+107.1%Added
Webster Bank, N. A.1,500$15.9K0.00%00.0%Unchanged
CWM, LLC1,924$20.0K0.00%00.0%Unchanged
Highline Wealth Partners LLC2,000$21.2K0.01%+2,000New
CX Institutional2,065$22.0K0.00%+2,065New
Guerra Advisors Inc2,352$24.9K0.01%+2,352New
US Bancorp3,000$31.8K0.00%00.0%Unchanged
Farther Finance Advisors, LLC3,347$35.4K0.00%00.0%Unchanged
Comerica Bank4,550$48.2K0.00%+2,300+102.2%Added
N.E.W. Advisory Services LLC6,000$63.5K0.01%00.0%Unchanged
Steward Partners Investment Advisory, LLC6,912$73.2K0.00%−5,030−42.1%Reduced
Advisory Services Network, LLC6,965$73.8K0.00%+6,965New
Fifth Third Bancorp8,010$84.8K0.00%+8,010New
Intellus Advisors LLC10,000$105.9K0.01%00.0%Unchanged
Diversify Wealth Management, LLC10,000$106.6K0.01%00.0%Unchanged
Cito Capital Group, LLC10,000$107.0K0.03%00.0%Unchanged
Secure Asset Management, LLC10,081$107.2K0.02%−2,071−17.0%Reduced
Snowden Capital Advisors LLC10,291$109.7K0.00%00.0%Unchanged
Horizon Kinetics Asset Management LLC10,369$109.8K0.00%−6,953−40.1%Reduced
Sage Capital Management, LLC10,500$111.2K0.05%00.0%Unchanged
Principle Wealth Partners LLC11,000$116.5K0.01%00.0%Unchanged
MAI Capital Management11,038$116.9K0.00%00.0%Unchanged
Hudson Valley Investment Advisors Inc11,500$121.8K0.01%00.0%Unchanged
Berkeley Capital Partners, LLC11,573$122.6K0.03%−600−4.9%Reduced
AlphaCore Capital LLC11,573$123.3K0.00%−1,261−9.8%Reduced
Concurrent Investment Advisors, LLC11,964$126.7K0.00%00.0%Unchanged
National Asset Management, Inc.11,968$126.7K0.01%−1,817−13.2%Reduced
Spire Wealth Management11,986$126.9K0.00%+37+0.3%Added
Sonora Investment Management Group, LLC12,154$128.7K0.01%00.0%Unchanged
Thrivent Financial for Lutherans12,530$133.0K0.00%+12,530New
Merit Financial Group, LLC12,587$133.3K0.00%−715−5.4%Reduced
Independent Financial Group, LLC13,000$137.7K0.00%−10,000−43.5%Reduced
Pacitti Group Inc.13,846$146.6K0.06%−530−3.7%Reduced
Tyche Wealth Partners LLC14,349$152.0K0.03%00.0%Unchanged
Dynamic Advisor Solutions LLC14,727$156.0K0.00%+1,713+13.2%Added
D.A. Davidson & Co.15,149$160.4K0.00%00.0%Unchanged
Van Hulzen Asset Management, LLC15,657$165.8K0.01%00.0%Unchanged
HRT Financial LP15,909$168.0K0.00%+15,909New
Kestra Private Wealth Services, LLC16,907$179.1K0.00%+3,034+21.9%Added
Jane Street Group, LLC17,166$181.8K0.00%−32,933−65.7%Reduced
Creative Planning17,332$183.5K0.00%−214−1.2%Reduced
Kercheville Advisors, LLC17,531$185.7K0.06%+24+0.1%Added
EWG Elevate Inc.17,825$188.8K0.06%00.0%Unchanged
KG&L Capital Management,LLC18,800$199.1K0.05%+1,400+8.0%Added
Mutual Advisors, LLC19,560$206.0K0.00%+2,246+13.0%Added
Noble Wealth Management PBC19,664$208.2K0.11%+19,664New
Melfa Wealth Management, LLC19,802$209.7K0.12%00.0%Unchanged
Oppenheimer & Co Inc20,132$213.2K0.00%+4,079+25.4%Added
Ashton Thomas Private Wealth, LLC20,187$214.2K0.01%+20,187New
Duncker Streett & Co Inc22,900$242.5K0.04%00.0%Unchanged
StoneX Group Inc.25,050$265.4K0.01%−5,614−18.3%Reduced
Plan Group Financial, LLC25,114$266.0K0.07%+4,687+22.9%Added
Focus Financial Network, Inc.30,301$322.9K0.01%+874+3.0%Added
Wedbush Securities Inc30,487$323.0K0.01%+16+0.1%Added
Archetype Wealth Partners30,890$327.0K0.04%−3,708−10.7%Reduced
Capital Investment Advisors, LLC31,156$329.9K0.01%−1,500−4.6%Reduced
Janney Montgomery Scott LLC32,648$346.0K0.00%−805−2.4%Reduced
Ibex Wealth Advisors33,739$357.3K0.03%00.0%Unchanged
Williams Jones Wealth Management, LLC.34,963$370.3K0.00%+34,963New
Invesco Ltd.36,732$389.0K0.00%−25,536−41.0%Reduced
Everstar Asset Management, LLC39,058$413.6K0.23%−906−2.3%Reduced
We Are One Seven, LLC39,674$420.1K0.01%+1,091+2.8%Added
Harbour Investments, Inc.41,971$444.5K0.01%−27,707−39.8%Reduced
Core Wealth Partners LLC44,494$471.2K0.22%+34+0.1%Added
Private Advisor Group, LLC49,164$520.6K0.00%+14,840+43.2%Added
Eq Wealth Advisors, LLC51,237$542.6K0.36%+39,319+329.9%Added
Wiley Bros.-Aintree Capital, LLC56,778$601.3K0.00%+72+0.1%Added
LexAurum Advisors, LLC57,357$607.4K0.09%+796+1.4%Added
Cliftonlarsonallen Wealth Advisors, LLC58,233$616.7K0.01%−1,678−2.8%Reduced
SRS Capital Advisors, Inc.62,757$664.6K0.01%+62,418+18,412.4%Added
Envestnet Asset Management Inc68,581$726.3K0.00%−12,704−15.6%Reduced
Platform Technology Partners69,503$736.0K0.18%+11,140+19.1%Added
Venture Visionary Partners LLC70,127$742.7K0.03%+320.0%Added
WESPAC Advisors, LLC70,274$744.2K0.43%00.0%Unchanged
Ausdal Financial Partners, Inc.70,712$748.8K0.04%+279+0.4%Added
GWM Advisors LLC72,861$771.6K0.00%−6,595−8.3%Reduced
Traynor Capital Management, Inc.75,177$796.1K0.05%−9,542−11.3%Reduced
Ameriprise Financial Inc77,200$817.5K0.00%+66+0.1%Added
Camelot Portfolios, LLC78,013$826.2K0.49%+3,941+5.3%Added
J.W. Cole Advisors, Inc.79,400$840.8K0.02%−1,679−2.1%Reduced
Smith, Moore & Co.80,293$850.3K0.07%+10,382+14.9%Added
Wakefield Asset Management LLLP88,868$941.5K0.26%+1,096+1.2%Added
Mariner, LLC90,676$960.3K0.00%−1,484−1.6%Reduced
Cambridge Investment Research Advisors, Inc.94,883$1.00M0.00%+4,348+4.8%Added
Regatta Capital Group, LLC109,768$1.16M0.18%00.0%Unchanged
MFA Wealth Services112,740$1.19M0.82%+2,361+2.1%Added
Running Point Capital Advisors, LLC118,010$1.25M0.33%−23,198−16.4%Reduced
Truist Financial Corp130,688$1.38M0.00%−3,022−2.3%Reduced
Palogic Value Management, L.P.131,700$1.39M0.59%+9,000+7.3%Added