Company: NMZ
Filing Date: 2025-01-06
Form Type: N-CSR
Source: 0001193125-25-002222
Chunk: 121

Company: NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
Filing Date: 2025-01-06
Form: N-CSR
Chunk 121
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”)) that invest primarily in municipal securities of the types in which the Fund may invest directly, to the extent permitted by the Investment Company Act of 1940, as amended (the “1940 Act”), the rules and regulations issued thereunder and applicable exemptive orders issued by the Securities and Exchange Commission (“SEC”). The Fund may invest in distressed securities and may invest in the securities of an issuer which, at the time of investment, is in default on its obligations to pay principal or interest thereon when due or that is involved in a bankruptcy proceeding (i.e., rated below C-, at the time of investment). The Fund’s sub-adviser may determine that it is in the best interest of shareholders in pursuing a workout arrangement with issuers of defaulted securities to make loans to the defaulted issuer or another party, or purchase a debt, equity or other interest from the defaulted issuer or another party, or take other related or similar steps involving the investment of additional monies. Use of Leverage The Fund uses leverage to pursue its investment objective. The Fund may use leverage to the extent permitted by the 1940 Act. The Fund may source leverage through a number of methods including through borrowings, issuing preferred shares of beneficial interest (“Preferred Shares”), the issuance of debt securities, entering into reverse repurchase agreements (effectively a borrowing), and investments in inverse floating rate securities. In addition, the Fund may also use certain derivatives that have the economic effect of leverage by creating additional investment exposure. The amount and sources of leverage will vary depending on market conditions. Temporary Defensive Periods During temporary defensive periods or in order to help keep the Fund’s assets fully invested, including during the period within which the net proceeds of an offering of Securities are first being invested, the Fund may deviate from its investment policies and objectives. During such periods, the Fund may invest any percentage of its Managed Assets in short-term investments, including high quality, short-term debt securities that may be either tax-exempt or taxable. The Fund may not achieve its investment objectives during such periods. 221 Shareholder Update (continued)

PRINCIPAL RISKS OF THE FUNDS

The factors that are most likely to have a material effect on a particular Fund’s portfolio as a whole are called “principal risks.” Each Fund is subject to the principal risks indicated below, whether through direct investment or derivative positions. Each Fund may be subject to additional risks other than those identified and described below because the types of investments made by a Fund can change over time.

| Risk