Institutional shares held 19.7 Million
0 calls
0 puts
Total value of holdings $210M
$0 calls
$0 puts
Market Cap N/A
Institutional ownership N/A
# of Institutions 136


Latest Institutional Activity in NMZ

Top Purchases

Q3 2025
Gridiron Partners, LLC Shares Held: 1.65M ($17.6M)
Q3 2025
Ubs Group Ag Shares Held: 1.96M ($20.9M)
Q3 2025
Northwestern Mutual Wealth Management CO Shares Held: 239K ($2.55M)
Q3 2025
Lpl Financial LLC Shares Held: 603K ($6.43M)
Q3 2025
Guggenheim Capital LLC Shares Held: 1.64M ($17.5M)

Top Sells

Q3 2025
Morgan Stanley Shares Held: 2.49M ($26.5M)
Q3 2025
Jane Street Group, LLC Shares Held: 17.2K ($183K)
Q3 2025
Harbour Investments, Inc. Shares Held: 42K ($447K)
Q3 2025
Hennion & Walsh Asset Management, Inc. Shares Held: 724K ($7.72M)
Q3 2025
Invesco Ltd. Shares Held: 36.7K ($392K)

About NMZ

Nuveen Municipal High Income Opportunity Fund is a closed-end fixed income mutual fund launched by Nuveen Investments Inc. The fund is co-managed by Nuveen Fund Advisors LLC and Nuveen Asset Management, LLC. It invests in the fixed income markets of the United States. The fund primarily invests in investment grade tax-exempt municipal securities. The fund was formerly known as Nuveen Municipal High Yield Opportunity Fund. Nuveen Municipal High Income Opportunity Fund was founded in November 19, 2003 and is based in the United States.


Insider Transactions at NMZ

Insider Transaction List

View all
Date Insider Transaction Ownership Type Shares Traded Value / Price
View All Transactions

Last 12 Months Summary

Buy / Acquisition
19.7K Shares
From 3 Insiders
Other acquisition or disposition 1K shares
Open market or private purchase 18.7K shares
Sell / Disposition
19.4K Shares
From 2 Insiders
Other acquisition or disposition 1K shares
Open market or private sale 18.4K shares

Track Institutional and Insider Activities on NMZ

Follow NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND and customize your updates to receive the information that matters most to you.

Institutional Portfolio Updates

Receive a notification when an Institution or Guru buys or sells NMZ shares.

Notify only if

Insider Trading

Get notified when an Nuveen Municipal High Income Opportunity Fund insider buys or sells NMZ shares.

Notify only if

News

Receive news related to NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND

Track Activities on NMZ