NMZ · Nuveen Municipal High Income Opportunity Fund · Holdings

$8.76 -0.19 (-2.12%) At close · Oct 5

Market Cap

$1.94B

215.37M

Volume · Oct 5 2.05M Avg daily vol (3M) 908.51K

Institutional ownership from SEC Form 13F filings. Investment managers with more than $100 million in U.S. equities must disclose their positions every quarter, within 45 days of quarter-end, so the holdings shown can lag the market by up to a quarter.

Use institutional holdings through the 13F API or MCP →

Some SEC filings for this period have not finished importing. Holder totals and changes may be incomplete; these filings remain queued for recovery.

The Sep 30, 2026 filing window is still open — showing the latest known positions. Funds that have not filed yet carry their prior-quarter positions; a fund that filed without this stock counts as sold out. Each fund's Change is measured against its own previous reported quarter, shown in the Reported column. Pick a completed quarter in the Quarter selector below to put every fund on one quarter and see the stock-wide activity breakdown.

Quarter:

Holders: 213

Total Value: $358,497,661

Total Shares: 33,921,275

Showing 1–100 of 213 holdings by value · page 1 of 3

Institutional Ownership Trend

27 quarters

Holder Concentration

Across 213 13F filers

Top Holder

9.3%

of institutional value

Top 5

36.7%

of institutional value

Top 10

56.5%

of institutional value

HHI

410

Broadly held

Showing 100 of 213

All Common Calls Puts

Compact Export CSV

Holder

Value (USD)

% of 13F

MORGAN STANLEY

$33,486,244

9.34%

3,168,046

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MORGAN STANLEY SMITH BARNEY LLC	2,886,301	$30,508,201	91.1%	Defined
PARAMETRIC PORTFOLIO ASSOCIATES LLC	281,745	$2,978,043	8.9%	Defined

GUGGENHEIM CAPITAL LLC

$25,122,236

7.01%

2,376,749

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
GUGGENHEIM FUNDS DISTRIBUTORS, LLC	2,376,749	$25,122,236	100.0%	Defined

WELLS FARGO & COMPANY/MN

$24,937,673

6.96%

2,359,288

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
WELLS FARGO BANK N A	1	$10	0.0%	Defined
WELLS FARGO ADVISORS FINANCIAL NETWORK, LLC	811,816	$8,580,895	34.4%	Defined
WELLS FARGO CLEARING SERVICES, LLC	1,547,471	$16,356,768	65.6%	Defined

SIT INVESTMENT ASSOCIATES INC

$24,701,487

6.89%

2,336,943

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
SIT FIXED INCOME ADVISORS II LLC /ADV	2,336,943	$24,701,487	100.0%	Sole

Hennion & Walsh Asset Management, Inc.

$23,434,070

6.54%

2,217,036

RAYMOND JAMES FINANCIAL INC

$20,402,593

5.69%

1,930,236

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RAYMOND JAMES & ASSOCIATES	1,175,075	$12,420,542	60.9%	Defined
Raymond James Financial Services Advisors, Inc.	699,150	$7,390,015	36.2%	Defined
RAYMOND JAMES TRUST N.A.	56,011	$592,036	2.9%	Defined

UBS Group AG

$16,189,677

4.52%

1,531,663

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
UBS Financial Services Inc	1,531,663	$16,189,677	100.0%	Defined

BANK OF AMERICA CORP /DE/

$11,762,729

3.28%

1,112,841

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
MERRILL LYNCH, PIERCE, FENNER & SMITH INC.	1,112,841	$11,762,729	100.0%	Defined

LPL Financial LLC

$11,419,880

3.19%

1,080,405

VAN ECK ASSOCIATES CORP

$11,166,560

3.11%

1,056,439

RIVERNORTH CAPITAL MANAGEMENT, LLC

$11,097,347

3.10%

1,049,891

J.W. COLE ADVISORS, INC.

$10,819,969

3.02%

1,023,649

Cetera Investment Advisers

$10,596,731

2.96%

1,002,529

Melone Private Wealth, LLC

$8,945,253

2.50%

846,287

Rockefeller Capital Management L.P.

$6,258,010

1.75%

592,054

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
ROCKEFELLER FINANCIAL LLC	592,054	$6,258,010	100.0%	Defined

NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO

$5,455,124

1.52%

516,095

ROYAL BANK OF CANADA

$4,761,953

1.33%

450,516

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
RBC Capital Markets, LLC	446,570	$4,720,244	99.1%	Defined
RBC Trust Co (Delaware) Ltd	2,374	$25,093	0.5%	Defined
RBC Rochdale, LLC	1,572	$16,616	0.3%	Defined

COMMONWEALTH EQUITY SERVICES, LLC

$4,724,314

1.32%

446,955

OSAIC HOLDINGS, INC.

$3,295,651

0.92%

311,793

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
OSAIC WEALTH, INC.	299,374	$3,164,383	96.0%	Defined
Osaic Advisory Services, LLC	12,419	$131,268	4.0%	Defined

Advisors Asset Management, Inc.

$2,874,458

0.80%

271,945

HighTower Advisors, LLC

$2,801,937

0.78%

265,084

Janney Montgomery Scott LLC

$2,330,663

0.65%

220,498

Baird Financial Group, Inc.

$2,294,366

0.64%

217,064

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Robert W. Baird & Co. Inc	217,064	$2,294,366	100.0%	Defined

Platform Technology Partners

$2,042,937

0.57%

193,277

Kestra Advisory Services, LLC

$2,008,152

0.56%

189,986

OneDigital Investment Advisors LLC

$1,983,227

0.55%

187,628

AE Wealth Management LLC

$1,827,732

0.51%

172,917

Equitable Holdings, Inc.

$1,797,861

0.50%

170,091

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
EQUITABLE ADVISORS, LLC	170,091	$1,797,861	100.0%	Defined

FIFTH THIRD BANCORP

$1,776,743

0.50%

168,093

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Fifth Third Bank, National Association	168,093	$1,776,743	100.0%	Defined

NewEdge Advisors, LLC

$1,748,362

0.49%

165,408

STIFEL FINANCIAL CORP

$1,596,323

0.45%

151,024

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
STIFEL NICOLAUS & CO INC \MO\	151,024	$1,596,323	100.0%	Defined

HighPoint Advisor Group LLC

$1,566,040

0.44%

148,159

Cambridge Investment Research Advisors, Inc.

$1,515,103

0.42%

143,340

PFG Investments, LLC

$1,492,473

0.42%

141,199

Ellis Investment Partners, LLC

$1,473,257

0.41%

139,381

TRUIST FINANCIAL CORP

$1,444,368

0.40%

136,648

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
TRUIST BANK /NC/	1,833	$19,374	1.3%	Defined
Truist Advisory Services, Inc.	134,815	$1,424,994	98.7%	Defined

High Net Worth Advisory Group LLC

$1,441,166

0.40%

136,345

Palogic Value Management, L.P.

$1,434,877

0.40%

135,750

BCS Private Wealth Management, Inc.

$1,426,463

0.40%

134,954

Kingsview Wealth Management, LLC

$1,312,180

0.37%

124,142

Cerity Partners LLC

$1,240,357

0.35%

117,347

AMERIPRISE FINANCIAL INC

$1,226,943

0.34%

116,078

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Ameriprise Financial Services, LLC	113,915	$1,204,081	98.1%	Defined
Ameriprise Bank, FSB	2,163	$22,862	1.9%	Defined

Wakefield Asset Management LLLP

$1,223,139

0.34%

115,718

Breakwater Capital Group

$1,170,891

0.33%

110,775

Private Advisor Group, LLC

$1,164,972

0.32%

110,215

Gridiron Partners, LLC

$1,074,144

0.30%

101,622

Focus Partners Wealth

$1,032,932

0.29%

97,723

&PARTNERS

$1,027,625

0.29%

97,221

MFA Wealth Services

$1,010,650

0.28%

95,615

Venture Visionary Partners LLC

$978,581

0.27%

92,581

North Ground Capital

$947,072

0.26%

89,600

Ausdal Financial Partners, Inc.

$939,197

0.26%

88,855

ENVESTNET ASSET MANAGEMENT INC

$903,132

0.25%

85,443

YHB Investment Advisors, Inc.

$868,991

0.24%

82,213

JANE STREET GROUP, LLC

$847,121

0.24%

80,144

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
Jane Street Capital, LLC	68,370	$722,670	85.3%	Defined
Jane Street Global Trading, LLC	11,774	$124,451	14.7%	Defined

Thompson David Blair

$842,460

0.23%

79,703

TCP Asset Management, LLC

$816,331

0.23%

77,231

PNC FINANCIAL SERVICES GROUP, INC.

$810,082

0.23%

76,640

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
PNC Bank, National Association	75,056	$793,340	97.9%	Defined
PNC Wealth Management LLC	1,584	$16,742	2.1%	Defined

Mutual Advisors, LLC

$779,643

0.22%

73,760

WESPAC Advisors, LLC

$767,413

0.21%

72,603

Worthington Financial Partners, LLC

$743,387

0.21%

70,330

EQ WEALTH ADVISORS, LLC

$740,132

0.21%

70,022

CAPTRUST FINANCIAL ADVISORS

$730,587

0.20%

69,119

Camelot Portfolios, LLC

$710,969

0.20%

67,263

Wealthcare Advisory Partners LLC

$657,232

0.18%

62,179

SMITH, MOORE & CO.

$633,956

0.18%

59,977

Steward Partners Investment Advisory, LLC

$613,683

0.17%

58,059

Mariner, LLC

$561,636

0.16%

53,135

EVOLVE PRIVATE WEALTH, LLC

$551,827

0.15%

52,207

OPPENHEIMER & CO INC

$548,350

0.15%

51,878

Traynor Capital Management, Inc.

$478,070

0.13%

45,229

Core Wealth Partners LLC

$471,411

0.13%

44,599

Secure Asset Management, LLC

$445,948

0.12%

42,190

MELFA WEALTH MANAGEMENT, INC.

$439,437

0.12%

41,574

SUSQUEHANNA INTERNATIONAL GROUP, LLP

$438,570

0.12%

41,492

This filing is a combination report: the position is filed across the managers below.

Manager	Shares	Value (USD)	% of position	Discretion
G1 EXECUTION SERVICES, LLC	41,492	$438,570	100.0%	Other

HARBOUR INVESTMENTS, INC.

$434,226

0.12%

41,081

NATIONS FINANCIAL GROUP INC, /IA/ /ADV

$415,686

0.12%

39,327

Merit Financial Group, LLC

$414,809

0.12%

39,244

AmeriServ Wealth Advisors

$413,678

0.12%

39,137

CLIFTONLARSONALLEN WEALTH ADVISORS, LLC

$406,078

0.11%

38,418

WEALTH EFFECTS LLC

$400,581

0.11%

37,898

Everstar Asset Management, LLC

$396,681

0.11%

37,529

IBEX WEALTH ADVISORS

$396,596

0.11%

37,521

Ashton Thomas Private Wealth, LLC

$364,527

0.10%

34,487

Signal Advisors Wealth, LLC

$356,758

0.10%

33,752

Compound Planning, Inc.

$343,017

0.10%

32,452

RMR Wealth Builders

$329,593

0.09%

31,182

Aviance Capital Partners, LLC

$328,970

0.09%

31,123

NCM Capital Management, LLC

$321,867

0.09%

30,451

Capital Investment Advisors, LLC

$321,053

0.09%

30,374

SYKON CAPITAL LLC

$319,964

0.09%

30,271

Kercheville Advisors, LLC

$310,377

0.09%

29,364

Creative Planning

$307,185

0.09%

29,062

Alpine Global Management, LLC

$306,318

0.09%

28,980

MGO ONE SEVEN LLC

$302,513

0.08%

28,620

Ethos Financial Group, LLC

$302,122

0.08%

28,583

PEAPACK GLADSTONE FINANCIAL CORP

$293,496

0.08%

27,767

Johnson & White Wealth Management, LLC

$284,766

0.08%

26,941

Focus Partners Advisor Solutions, LLC

$284,724

0.08%

26,937

Noble Wealth Management PBC

$278,853

0.08%

31,122

Key facts CIK 1266585 CUSIP 670682103 13F (30d) 6 filings 6 filers Visit website Investor relations