Company: NMZ
Filing Date: 2025-07-07
Form Type: N-CSRS
Source: 0001193125-25-156000
Chunk: 16

Company: NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
Filing Date: 2025-07-07
Form: N-CSRS
Chunk 16
---
 | 1,236,600,000 |   |     | $   |   677,000,000 |   |     | $   |             – |   |     | $    |             – |   |     | $    |            – |   |
| # Net of discount of                                            |     | $   |     1,679,984 |   |     | $   |     3,757,245 |   |     | $   |     1,865,083 |   |     | $    |     2,134,081 |   |     | $    |            – |   |

See Notes to Financial Statements 175

Statement of Assets and Liabilities (continued)

| (1) | Refer to Note 4 of the Notes to Financial Statements for more information. |

| (2) | As disclosed in Notes to Financial Statements. |

See Notes to Financial Statements 176

Statement of Operations

| Six Months Ended April 30, 2025 (Unaudited)                |     | NVG |              |   |     | NZF |              |   |     | NMZ |             |   |     | NMCO |             |   |     | NDMO |             |   |
|:-----------------------------------------------------------|:----|:----|-------------:|:--|:----|:----|-------------:|:--|:----|:----|------------:|:--|:----|:-----|------------:|:--|:----|:-----|------------:|:--|
| INVESTMENT INCOME                                          |     |     |              |   |     |     |              |   |     |     |             |   |     |      |             |   |     |      |             |   |
| Dividends from affiliated investments                      |     | $   |            — |   |     | $   |            — |   |     | $   |      46,020 |   |     | $    |           — |   |     | $    |           — |   |
| Interest                                                   |     |     |  112,780,789 |   |     |     |  104,706,411 |   |     |     |  54,805,831 |   |     |      |  30,418,073 |   |     |      |  23,735,270 |