Company: NMZ
Filing Date: 2025-01-06
Form Type: N-CSR
Source: 0001193125-25-002222
Chunk: 89

Company: NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
Filing Date: 2025-01-06
Form: N-CSR
Chunk 89
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 to Financial Statements (continued)

| Fund |     | UtilizationPeriod (DaysOutstanding) |     |   | AverageDaily BalanceOutstanding |     | Average AnnualInterest Rate |
|:-----|:----|------------------------------------:|:----|:--|--------------------------------:|:----|----------------------------:|
| NVG  |     |                                   4 |     | $ |                       6,448,951 |     |                       6.41% |
| NZF  |     |                                  86 |     |   |                      16,553,301 |     |                        6.46 |
| NMZ  |     |                                  26 |     |   |                      16,580,196 |     |                        6.51 |
| NMCO |     |                                  61 |     |   |                       9,478,740 |     |                        6.37 |
| NDMO |     |                                   6 |     |   |                       8,800,000 |     |                        6.53 |

Borrowings outstanding as of the end of the reporting period, if any, are recognized as “Borrowings” on the Statement of Assets and Liabilities, where applicable. 11. Inter-Fund Borrowing and Lending Inter-Fund Borrowing and Lending: The SEC has granted an exemptive order permitting registered open-end and closed-end Nuveen funds to participate in an inter-fund lending facility whereby the Nuveen funds may directly lend to and borrow money from each other for temporary purposes (e.g., to satisfy redemption requests or when a sale of securities “fails,” resulting in an unanticipated cash shortfall) (the “Inter-Fund Program”). The closed-end Nuveen funds, including the Funds covered by this shareholder report, will participate only as lenders, and not as borrowers, in the Inter-Fund Program because such closed-end funds rarely, if ever, need to borrow cash to meet redemptions. The Inter-Fund Program is subject to a number of conditions, including, among other things, the requirements that (1) no fund may borrow or lend money through the Inter-Fund Program unless it receives a more favorable interest rate than is typically available from a bank or other financial institution for a comparable transaction; (2) no fund may borrow on an unsecured basis through the Inter-Fund Program unless the fund’s outstanding borrowings from all sources immediately after the inter-fund borrowing total 10% or less of