Company: NMZ
Filing Date: 2025-07-07
Form Type: N-CSRS
Source: 0001193125-25-156000
Chunk: 52

Company: NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
Filing Date: 2025-07-07
Form: N-CSRS
Chunk 52
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 inter-fund loans to any one fund shall not exceed 5% of the lending fund’s net assets; (6) the duration of inter-fund loans will be limited to the time required to receive payment for securities sold, but in no event more than seven days; and (7) each inter-fund loan may be called on one business day’s notice by a lending fund and may be repaid on any day by a borrowing fund. In addition, a Nuveen fund may participate in the Inter-Fund Program only if and to the extent that such participation is consistent with the fund’s investment objective and investment policies. The Board is responsible for overseeing the Inter-Fund Program. 204

The limitations detailed above and the other conditions of the SEC exemptive order permitting the Inter-Fund
Program are designed to minimize the risks associated with Inter-Fund Program for both the lending fund and the borrowing fund. However, no borrowing or lending activity is without risk. When a fund borrows money from another fund, there is a risk
that the loan could be called on one day’s notice or not renewed, in which case the fund may have to borrow from a bank at a higher rate or take other actions to payoff such loan if an inter-fund loan is not available from another fund. Any
delay in repayment to a lending fund could result in a lost investment opportunity or additional borrowing costs.

During the current reporting period, none of
the Funds covered by this shareholder report have entered into any inter-fund loan activity.

205

Shareholder Meeting Report (Unaudited) The annual meeting of shareholders for NMCO was held on April 17, 2025; at this meeting the shareholders were asked to elect Board Members.

|                                                       |     | NMCO                        |            |     |                             |
|                                                       |     | Common                      
 and Preferred shares voting 
 together as a class         |            |     |                   Preferred 
 Shares voting together as a 
                       class |
| Approval of the Board Members was reached as follows: |     |                             |            |     |                             |
| Michael A. Forrester                                  |     |                             |            |     |                             |
| For                                                   |     |                             | 45,975,179 |     |                           – |
| Withhold                                              |     |                             |    935,424 |     |                           – |
| Total                                                 |     |                             | 46,910,603 |     |                           – |
| Thomas J. Kenny                                       |     |