Company: OIA
Filing Date: 2025-05-02
Form Type: N-CSR
Source: 0001193125-25-111534
Chunk: 3

Company: Invesco Municipal Income Opportunities Trust
Filing Date: 2025-05-02
Form: N-CSR
Chunk 3
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 and index data from 2/28/15 1 Source: RIMES Technologies Corp. 2 Source: Invesco, RIMES Technologies Corp. Past performance cannot guarantee future results. Performance shown in the chart does not reflect deduction of taxes a shareholder would pay on Trust distributions or sale of Trust shares.

| 4 |     | Invesco Municipal Income Opportunities Trust |

| Average Annual Total Returns |     |     |       |     |        |       |
| As of 2/28/25                |     |     |       |     |        |       |
|                              |     | NAV |       |     | Market |       |
| 10 Years                     |     |     | 3.71% |     |        | 4.18% |
| 5 Years                      |     |     |  0.81 |     |        |  0.23 |
| 1 Year                       |     |     |  6.00 |     |        |  4.66 |

The performance data quoted represent past performance and cannot guarantee future results; current performance may be lower or higher. Please visit invesco.com/ performance for the most recent month-endperformance. Performance figures do not reflect deduction of taxes a shareholder would pay on Trust distributions or sale of Trust shares. Investment return and principal value will fluctuate so that you may have a gain or loss when you sell shares.

| 5 |     | Invesco Municipal Income Opportunities Trust |

Supplemental Information

| ∎ | Unless otherwise noted, all data is provided by Invesco. |

| ∎ | To access your Trust’s reports, visit invesco.com/fundreports. |

About indexes used in this report

| ∎ | TheS&P Municipal Bond High Yield Indexis an unmanaged index considered representative of municipal bonds that are not rated or are rated below investment grade. |

| ∎ | TheCustom Invesco Municipal Income Opportunities Trust Indexis designed to measure the performance of a hypothetical allocation, which consists of 80% weight in the S&P Municipal Bond High Yield Index and 20% weight in the S&P Municipal Bond Investment Grade Index. |

| ∎ | The Trust is not managed to track the performance of any particular index, including the index(es) described here, and consequently, the performance of the Trust may deviate significantly from the performance of the index(es). |

| ∎ | A direct investment cannot be made in an index. Unless otherwise indicated,