Company: NMZ
Filing Date: 2025-01-06
Form Type: N-CSR
Source: 0001193125-25-002222
Chunk: 73

Company: NUVEEN MUNICIPAL HIGH INCOME OPPORTUNITY FUND
Filing Date: 2025-01-06
Form: N-CSR
Chunk 73
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     Inverse Floaters |     |   |       Total |
|:-----|:----|:--|--------------------:|:----|:--|---------------------:|:----|:--|------------:|
| NVG  |     | $ |         204,880,000 |     | $ |                    – |     | $ | 204,880,000 |
| NZF  |     |   |         368,475,000 |     |   |           11,080,000 |     |   | 379,555,000 |
| NMZ  |     |   |         453,075,000 |     |   |           11,290,000 |     |   | 464,365,000 |
| NMCO |     |   |          35,960,000 |     |   |                    – |     |   |  35,960,000 |
| NDMO |     |   |          28,135,000 |     |   |                    – |     |   |  28,135,000 |

Zero Coupon Securities: A zero coupon security does not pay a regular interest coupon to its holders during the life of the security. Income to the holder of the security comes from accretion of the difference between the original purchase price of the security at issuance and the par value of the security at maturity and is effectively paid at maturity. The market prices of zero coupon securities generally are more volatile than the market prices of securities that pay interest periodically. Purchases and Sales: Long-term purchases and sales during the current fiscal period were as follows:

| Fund |     |   |      Non-U.S. 
    Government 
     Purchases |     |   |       U.S. 
 Government 
  Purchases |     |   |         Non-U.S. 
 Government Sales 
   and Maturities |     |   |       U.S. 
 Government 
      Sales |
|:-----|:----|:--|--------------:|:----|:--|-----------:|:----|:--|-----------------:|:----|:--|-----------:|
| NVG  |     | $ | 1,204,723,651 |     | $ |          – |     | $ |    1,290,727,500 |     | $ |          – |
| NZF  |     |   |   667,994,450 |     |