Company: NMZ
Filing Date: 2025-01-06
Form Type: N-CSR
Source: 0001193125-25-002222
Chunk: 153

Company: NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
Filing Date: 2025-01-06
Form: N-CSR
Chunk 153
---
-advisor(s). |

| (3) | Other Expenses are based on estimated amounts for the current fiscal year. Expenses attributable to the Fund’s investments, if any, in other investment companies are currently estimated not to exceed 0.01%. |

237 Shareholder Update (continued)

Example

The following example illustrates the expenses, including the applicable transaction fees (referred to as the “Maximum Sales Charge” in the Shareholder Transaction Expenses table above), if any, that a common shareholder would pay on a $1,000 investment that is held for the time periods provided in the table. The example assumes that all dividends and other distributions are reinvested in the Fund and that the Fund’s Annual Expenses, as provided above, remain the same. The example also assumes a 5% annual return. Actual expenses may be greater or less than those assumed. Moreover, the Fund’s actual rate of return may be greater or less than the hypothetical 5% return shown in the example.

Example (At-the-Market Transaction)

The following example assumes a transaction fee of 1.00%, as a percentage of the offering price.

|      |     | 1 Year |     | 3 Years |     | 5 Years |     | 10 Years |
| NMZ  |     |    $48 |     |    $125 |     |    $204 |     |     $410 |
| NMCO |     |    $57 |     |    $151 |     |    $246 |     |     $485 |
| NDMO |     |    $40 |     |    $102 |     |    $166 |     |     $338 |

The example should not be considered a representation of future expenses. Actual expenses may be greater or less thanthose shown above.

238 TRADING AND NET ASSET VALUE INFORMATION The following table shows for the periods indicated: (i) the high and low sales prices for the Common Shares reported as of the end of the day on the NYSE, (ii) the high and low net asset value (NAV) of the Common Shares, and (iii) the high and low of the premium/(discount) to NAV (expressed as a percentage) of shares of the Common Shares.

NMZ

| Fiscal Quarter End 
 October 2024       |     | Market Price 
         High 
       $11.82 |     |    Low 
 $10.72 |     |    NAV 
   High 
 $11.66 |     |    Low