Nuveen Municipal High Income Opportunity Fund
US ˙ NYSE ˙ US6706821039

SecurityNMZ / Nuveen Municipal High Income Opportunity Fund
InstitutionWedbush Securities Inc
Latest Disclosed Ownership28,860 shares
Latest Disclosed Value $ 300
Wedbush Securities Inc reports 21.74% increase in ownership of NMZ / Nuveen Municipal High Income Opportunity Fund

On April 21, 2026 - Wedbush Securities Inc filed a 13F-HR form disclosing ownership of 28,860 shares of Nuveen Municipal High Income Opportunity Fund (US:NMZ) valued at $299,567 USD as of March 31, 2026. The entity filed a previous 13F-HR on February 12, 2026 disclosing 23,707 shares of Nuveen Municipal High Income Opportunity Fund. The current value of the position is $295,526 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)
2026-04-21 2026-03-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 28,860 5,153 21.74 0 0.0087
2026-02-12 2025-12-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 23,707 -6,780 -22.24 0 0.0071
2025-11-06 2025-09-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 30,487 16 0.05 0 0.0106
2025-08-06 2025-06-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 30,471 15 0.05 0 0.0110
2025-05-06 2025-03-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 30,456 4,669 18.11 0 0.0122
2025-02-13 2024-12-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 25,787 18 0.07 0 0.0099
2024-11-08 2024-09-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 25,769 14 0.05 0 0.0111
2024-08-07 2024-06-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 25,755 -18,753 -42.13 0 0.0099
2024-05-15 2024-03-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 44,508 -10,645 -19.30 0 0.0175
2024-02-12 2023-12-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 55,153 -2,711 -4.69 1 0.0241
2023-11-14 2023-09-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 57,864 660 1.15 1 0.0267
2023-08-14 2023-06-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 57,204 -16,194 -22.06 1 0.0289
2023-05-09 2023-03-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 73,398 -4,994 -6.37 1 0.0397
2023-01-31 2022-12-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 78,392 834 1.08 1 -100.00 0.0446
2022-10-18 2022-09-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 77,558 18,583 31.51 797 15.51 0.0448
2022-07-21 2022-06-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 58,975 -28,682 -32.72 690 -39.47 0.0376
2022-04-19 2022-03-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 87,657 -7,260 -7.65 1,140 -20.56 0.0522
2022-01-13 2021-12-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 94,917 -2,670 -2.74 1,435 -0.35 0.0618
2021-10-08 2021-09-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 97,587 39,684 68.54 1,440 61.62 0.0683
2021-07-27 2021-06-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 57,903 84 0.15 891 6.83 0.0421
2021-04-26 2021-03-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 57,819 12,763 28.33 834 28.31 0.0462
2021-02-16 2020-12-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 45,056 -41,369 -47.87 650 -44.25 0.0570
2020-10-20 2020-09-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 86,425 49 0.06 1,166 2.37 0.1118
2020-07-16 2020-06-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 86,376 52 0.06 1,139 5.95 0.1077
2020-04-17 2020-03-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 86,324 -1,698 -1.93 1,075 -13.93 0.1279
2020-01-16 2019-12-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 88,022 4,694 5.63 1,249 4.96 0.1110
2019-10-17 2019-09-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 83,328 19,404 30.35 1,190 33.41 0.1164
2019-08-01 2019-06-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 63,924 19,571 44.13 892 48.42 0.0897
2019-04-17 2019-03-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 44,353 10 0.02 601 16.47 0.0646
2019-01-31 2018-12-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 44,343 14,915 50.68 516 39.84 0.0659
2018-11-13 2018-09-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 29,428 0 0.00 369 -1.07 0.0419
2018-08-03 2018-06-30 13F NUVEEN MUNICIPAL HIGH COM 670682103 29,428 3,225 12.31 373 13.72 0.0462
2018-05-01 2018-03-31 13F NUVEEN MUNICIPAL HIGH COM 670682103 26,203 26,203 328 0.0428
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.