Nuveen Municipal High Income Opportunity Fund
US ˙ NYSE ˙ US6706821039

SecurityNMZ / Nuveen Municipal High Income Opportunity Fund
InstitutionPacitti Group Inc.
Latest Disclosed Ownership15,048 shares
Latest Disclosed Value $ 156,199
Pacitti Group Inc. reports 2.03% increase in ownership of NMZ / Nuveen Municipal High Income Opportunity Fund

On May 6, 2026 - Pacitti Group Inc. filed a 13F-HR form disclosing ownership of 15,048 shares of Nuveen Municipal High Income Opportunity Fund (US:NMZ) valued at $156,198 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 5, 2026 disclosing 14,748 shares of Nuveen Municipal High Income Opportunity Fund. This represents a change in shares of 2.03% during the quarter. The current value of the position is $154,092 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)
2026-05-06 2026-03-31 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 15,048 300 2.03 156 4.00 0.0565
2026-02-05 2025-12-31 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 14,748 902 6.51 150 2.74 0.0553
2025-11-14 2025-09-30 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 13,846 -530 -3.69 147 -2.01 0.0568
2025-07-31 2025-06-30 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 14,376 -2,355 -14.08 149 -18.13 0.0646
2025-05-09 2025-03-31 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 16,731 -220 -1.30 183 -0.55 0.0866
2025-02-07 2024-12-31 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 16,951 -1,785 -9.53 183 -16.06 0.0866
2024-11-12 2024-09-30 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 18,736 0 0.00 218 7.92 0.1030
2024-08-13 2024-06-30 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 18,736 -739 -3.79 202 -1.46 0.1057
2024-05-13 2024-03-31 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 19,475 -1,044 -5.09 206 1.49 0.1111
2024-02-14 2023-12-31 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 20,519 27 0.13 203 6.32 0.1264
2023-11-13 2023-09-30 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 20,492 -4,044 -16.48 190 -26.64 0.1331
2023-08-11 2023-06-30 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 24,536 375 1.55 259 -0.38 0.1826
2023-05-12 2023-03-31 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 24,161 -14,000 -36.69 261 -34.01 0.1911
2023-02-10 2022-12-31 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 38,161 -10,239 -21.15 395 -20.88 0.3088
2022-11-10 2022-09-30 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 48,400 410 0.85 498 -11.23 0.4076
2022-08-10 2022-06-30 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 47,990 1,000 2.13 561 -8.18 0.4304
2022-05-12 2022-03-31 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 46,990 -1,458 -3.01 611 -16.64 0.4037
2022-02-08 2021-12-31 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 48,448 97 0.20 733 2.66 0.4766
2021-11-15 2021-09-30 13F NUVEEN MUN HIGH INCOME OPPOR COM 670682103 48,351 714 -3.90 0.4459
2021-08-16 2021-06-30 13F NUVEEN MUNI HIGH INCOME OPP FU COM COM 670682103 743 6.60 0.4469
2021-05-17 2021-03-31 13F NUVEEN MUNI HIGH INCOME OPP FU COM COM 670682103 48,314 12 0.02 697 0.14 0.4606
2021-02-16 2020-12-31 13F NUVEEN MUNI HIGH INCOME OPP FU COM COM 670682103 48,302 1,810 3.89 696 11.00 0.5010
2020-11-16 2020-09-30 13F NUVEEN MUNI HIGH INCOME OPP FU COM COM 670682103 46,492 6 0.01 627 -1.72 0.5039
2020-08-12 2020-06-30 13F NUVEEN MUNI HIGH INCOME OPP FU COM COM 670682103 46,486 19 0.04 638 10.38 0.5003
2020-05-12 2020-03-31 13F NUVEEN MUNI HIGH INCOME OPP FU COM COM 670682103 46,467 999 2.20 578 -10.39 0.5717
2020-02-13 2019-12-31 13F NUVEEN MUNI HIGH INCOME OPP FU COM COM 670682103 45,468 15,467 51.55 645 50.70 0.5230
2019-11-18 2019-09-30 13F NUVEEN MUNI HIGH INCOME OPP FU COM COM 670682103 30,001 30,001 428 0.4586
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.