NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND

PublicCIK: 1266585
NMZNYSE
Location

CHICAGO, IL

13F Filings

Institutional Holders

NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUNDNMZ— Latest position per institution from SEC 13F filings

15

Institutional holders

16.67M

Total shares held

167.54M

Estimated value

833.46K

Avg. position size

1

MORGAN STANLEY

CIK 895421

Shares

2.67M

Value

27.67M

Filed

Mar 31, 2026

2

GUGGENHEIM CAPITAL LLC

CIK 1283072

Shares

2.04M

Value

21.21M

Filed

Mar 31, 2026

3

UBS GROUP AG

CIK 1610520

Shares

1.92M

Value

19.93M

Filed

Mar 31, 2026

4

HENNION & WALSH ASSET MANAGEMENT, INC.

CIK 1861642

Shares

1.64M

Value

17.01M

Filed

Mar 31, 2026

5

RAYMOND JAMES FINANCIAL INC

CIK 720005

Shares

1.12M

Value

11.63M

Filed

Mar 31, 2026

6

WELLS FARGO & COMPANY/MN

CIK 72971

Shares

878.67K

Value

9.12M

Filed

Mar 31, 2026

7

WOODLINE PARTNERS LP

CIK 1784547

Shares

806.94K

Value

8.71M

Filed

Mar 31, 2023

8

LPL FINANCIAL LLC

CIK 1403438

Shares

764.07K

Value

7.93M

Filed

Mar 31, 2026

9

VAN ECK ASSOCIATES CORP

CIK 869178

Shares

674.28K

Value

7K

Filed

Mar 31, 2026

10

MELONE PRIVATE WEALTH, LLC

CIK 1905765

Shares

672.62K

Value

6.98M

Filed

Mar 31, 2026

11

RAYMOND JAMES & ASSOCIATES

CIK 1084208

Shares

516.48K

Value

6.02M

Filed

Sep 30, 2024

12

CETERA INVESTMENT ADVISERS

CIK 1666741

Shares

397.63K

Value

4.13M

Filed

Mar 31, 2026

13

BANK OF AMERICA CORP /DE/

CIK 70858

Shares

389.20K

Value

4.04M

Filed

Mar 31, 2026

14

NORTHWESTERN MUTUAL WEALTH MANAGEMENT CO

CIK 1141802

Shares

340.62K

Value

3.54M

Filed

Mar 31, 2026

15

ATRIA WEALTH SOLUTIONS, INC.

CIK 1927543

Shares

339.81K

Value

3.71M

Filed

Mar 31, 2025

16

ROBINSON CAPITAL MANAGEMENT, LLC

CIK 1599795

Shares

332.67K

Value

3.39M

Filed

Mar 31, 2026

17

GRIDIRON PARTNERS, LLC

CIK 1910867

Shares

319.83K

Value

3.32M

Filed

Mar 31, 2026

18

RAYMOND JAMES FINANCIAL SERVICES ADVISORS, INC.

CIK 1462284

Shares

308.57K

Value

3.60M

Filed

Sep 30, 2024

19

ROYAL BANK OF CANADA

CIK 1000275

Shares

277.52K

Value

2.88M

Filed

Mar 31, 2026

20

ADVISORS ASSET MANAGEMENT, INC.

CIK 1297376

Shares

262.39K

Value

2.72M

Filed

Mar 31, 2026

Data sourced from SEC Form 13F institutional holdings reports. Positions reflect the most recent filing per institution.