Company: NMZ
Filing Date: 2025-01-06
Form Type: N-CSR
Source: 0001193125-25-002222
Chunk: 66

Company: NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
Filing Date: 2025-01-06
Form: N-CSR
Chunk 66
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 of the three-tiered hierarchy of valuation input levels.

| Level 1 – | Inputs are unadjusted and prices are determined using quoted prices in active markets for identical securities. |

| Level 2 – | Prices are determined using other significant observable inputs (including quoted prices for similar securities, interest rates, credit spreads, etc.). |

| Level 3 – | Prices are determined using significant unobservable inputs (including management’s assumptions in determining the fair value of investments). |

A description of the valuation techniques applied to the Funds’ major classifications of assets and liabilities measured at fair value follows: Equity securities and exchange-traded funds listed or traded on a national market or exchange are valued based on their last reported sales price or official closing price of such market or exchange on the valuation date. Foreign equity securities and registered investment companies that trade on a foreign exchange are valued at the last reported sales price or official closing price on the principal exchange where traded, and converted to U.S. dollars at the prevailing rates of exchange on the valuation date. For events affecting the value of foreign securities between the time when the exchange on which they are traded closes and the time when the Funds’ net assets are calculated, such securities will be valued at fair value in accordance with procedures adopted by the Adviser, subject to the oversight of the Board. To the extent these securities are actively traded and no valuation adjustments are applied, they are generally classified as Level 1. When valuation adjustments are applied to the most recent last sales price or official closing price, these securities are generally classified as Level 2. Prices of fixed-income securities are generally provided by pricing services approved by the Adviser, which is subject to review by the Adviser and oversight of the Board. Pricing services establish a security’s fair value using methods that may include consideration of the following: yields or prices of investments of comparable quality, type of issue, coupon, maturity and rating, market quotes or indications of value from security dealers, evaluations of anticipated cash flows or collateral, general market conditions and other information and analysis, including the obligor’s credit characteristics considered relevant. In pricing certain securities, particularly less liquid and lower quality securities, pricing services may consider information about a security, its issuer or market activity provided by the Adviser. These securities are generally classified as Level 2. For any portfolio security or derivative for which market quotations are not readily available or for which the Adviser deems the valuations derived using the valuation procedures described above not to reflect fair value,