Company: NMZ
Filing Date: 2025-01-06
Form Type: N-CSR
Source: 0001193125-25-002222
Chunk: 34

Company: NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
Filing Date: 2025-01-06
Form: N-CSR
Chunk 34
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 a tender option bond (“TOB”) trust, the interest rate on which varies inversely with the Securities Industry Financial Markets Association (SIFMA) short-term rate, which resets weekly, or a similar short-term rate, and is reduced by the expenses related to the TOB trust. |

| PIK | Payment-in-kind(“PIK”) security. Depending on the terms of the security, income may be received in the form of cash, securities, or a combination of both. The PIK rate shown, where applicable, represents the annualized rate of the last PIK payment made by the issuer as of the end of the reporting period. |

| TSFR |

| 3M | CME Term Secured Overnight Financing Rate 3 Month |

| UB | Underlying bond of an inverse floating rate trust reflected as a financing transaction. Inverse floating rate trust is a Recourse Trust unless otherwise noted. |

See Notes to Financial Statements 97 Portfolio of Investments October 31, 2024 NMZ

|   |     SHARES |     |        |     | DESCRIPTION                                                                                                                                                                         
 LONG-TERM INVESTMENTS - 158.3% (99.6% of Total Investments)                                                                                                                         
 COMMON STOCKS - 0.0% (0.0% of Total Investments)                                                                                                                                    
 MATERIALS - 0.0% (0.0% of Total Investments)                                                                                                                                        |     |        |     |          |     |   |      VALUE |
|:--|-----------:|:----|:-------|:----|:------------------------------------------------------------------------------------------------------------------------------------------------------------------------------------|:----|-------:|:----|:---------|:----|:--|-----------:|
|   |         39 |     | -a),(b |     | PALOUSE FIBER HOLDINGS                                                                                                                                                              |     |        |     |          |     | $ |          0 |
|   |            |     |        |     | TOTAL MATERIALS                                                                                                                                                                     |     |        |     |          |     |   |          0 |
|   |            |     |        |     | TOTAL COMMON STOCKS                                                                                                                                                                 
 (Cost $5,850)                                                                                                                                                                       |     |        |     |          |     |   |          0 |
|   |  PRINCIPAL |     |        |     | DESCRIPTION                                                                                                                                                                         |     |   RATE |     | MATURITY |     |   |      VALUE |
|   |            |     |        |     | M