Nuveen Municipal High Income Opportunity Fund
US ˙ NYSE ˙ US6706821039

SecurityNMZ / Nuveen Municipal High Income Opportunity Fund
InstitutionMerit Financial Group, LLC
Latest Disclosed Ownership10,726 shares
Latest Disclosed Value $ 111,336
Merit Financial Group, LLC reports 9.65% decrease in ownership of NMZ / Nuveen Municipal High Income Opportunity Fund

On April 15, 2026 - Merit Financial Group, LLC filed a 13F-HR form disclosing ownership of 10,726 shares of Nuveen Municipal High Income Opportunity Fund (US:NMZ) valued at $111,336 USD as of March 31, 2026. The entity filed a previous 13F-HR on January 26, 2026 disclosing 11,872 shares of Nuveen Municipal High Income Opportunity Fund. This represents a change in shares of -9.65% during the quarter. The current value of the position is $109,834 USD.

Institutional Ownership: 13F and NPORT Filings

The Security and Class in the table below are shown exactly as filed by the investor. We do our best to track continuity of investments through acquisitions, and this will be reflected in the table as changes in names. In addition to descriptive data, performance of the investment is shown over time. To calculate quarterly performance, we first calculate cost basis of the shares purchased during the quarter, then use that to calculate gross profit. Quarterly return is Gross Profit / Starting Portfolio value.

Note that cost basis is calculated and stored in thousands, so small quarterly changes in shares frequently result in a cost basis of zero.

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Disclosed Equity Positions (from 13F/NPORT Filings)
File
Date
Effective
Date
Form Security Class ID Avg Price
Paid (Est)
Reported
Shares
ΔShares ΔShares
(%)
Reported
Value
(x1000)
ΔValue
(%)
Alloc
(%)
ΔAlloc ΔAlloc (%) Cost Basis
(x1000)
Unrealized
Gain/Loss
(x1000)
2026-04-15 2026-03-31 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 10,726 -1,146 -9.65 111 -7.50 0.0006
2026-01-26 2025-12-31 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 11,872 -715 -5.68 121 -9.77 0.0007
2025-11-07 2025-09-30 13F/A-1 NUVEEN MUN HIGH INCOME OPPOR COM 670682103 12,587 -715 -5.38 133 -2.92 0.0012
2025-10-20 2025-09-30 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 12,587 -715 133 0.0012
2025-07-22 2025-06-30 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 13,302 13,302 138 0.0015
2024-05-06 2024-03-31 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 0 -123,564 -100.00 0 -100.00
2024-02-06 2023-12-31 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 123,564 -113,396 -47.85 1,221 -44.49 0.0371
2023-11-07 2023-09-30 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 236,960 -2,991 -1.25 2,199 -13.33 0.0720
2023-08-01 2023-06-30 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 239,951 239,951 2,536 0.0821
Legend
Shares
The total number of shares held by the institution at the end of the reporting period (the effective date). This is provided in the filing.
Value
The total value of the shares as of the effective date. This is provided in the filing.
Avg. Share Price
The weighted average share price of the shares held by the institution. We use FIFO accounting to determine this price
Class
This is the security class as indicated by the filer. There are a variety of values for this field. Common values include "EC" = equity common, "EP" - equity preferred
Allocation (%)
The percent of the institution's portfolio that this position represents. This is provided in NPORT filings. For 13F filings, we calculate it.
Change in Allocation
The change in allocation from the prior reporting period. This is calculated as current allocation - prior allocation.
Change in Allocation (%)
The percent change in allocation from the prior reporting period. This is calculated as (current allocation - prior allocation) / prior allocation.
Cost Basis
The total cost of the shares held. This is calculated as reported shares * avg. share price
Unrealized Gain/Loss
This is the market value of the position as of the effective date minus the cost basis.