# EDGAR Filing Document

**Accession Number:** 0001864290
**File Stem:** 0000940400-25-014051
**Filing Date:** 2025-12
**Character Count:** 4595
**Document Hash:** 519a94688f9938daeb8bb7ba610c72e6
**Contains OCR:** False
**Source Format:** 

## Filing Content

## Filing Summary
**0000940400-25-014051.hdr.sgml**: 20251219

**ACCESSION NUMBER**: 0000940400-25-014051

**CONFORMED SUBMISSION TYPE**: NPORT-P

**PUBLIC DOCUMENT COUNT**: 1

**CONFORMED PERIOD OF REPORT**: 20251031

**FILED AS OF DATE**: 20251219

**DATE AS OF CHANGE**: 20251219

**PERIOD START**: 20260430

**FILER**: 

**COMPANY DATA:**
- **COMPANY CONFORMED NAME:** Pioneer Municipal High Income Opportunities Fund, Inc.
- **CENTRAL INDEX KEY:** 0001864290

**ORGANIZATION NAME:**
- **EIN:** 000000000
- **STATE OF INCORPORATION:** MD
- **FISCAL YEAR END:** 0430

**FILING VALUES:**
- **FORM TYPE:** NPORT-P
- **SEC ACT:** 1940 Act
- **SEC FILE NUMBER:** 811-23699
- **FILM NUMBER:** 251588303

**BUSINESS ADDRESS:**
- **STREET 1:** 60 STATE STREET
- **STREET 2:** 5TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109
- **BUSINESS PHONE:** 617-742-7825

**MAIL ADDRESS:**
- **STREET 1:** 60 STATE STREET
- **STREET 2:** 5TH FLOOR
- **CITY:** BOSTON
- **STATE:** MA
- **ZIP:** 02109

## Form NPORT-P: Monthly Portfolio Investments Report

### NPORT-P: Part A: General Information

**Item A.1. Information about the Registrant.**

- **a. Name of Registrant:** Pioneer Municipal High Income Opportunities Fund, Inc.

- **b. Investment Company Act file number:** 811-23699

- **c. CIK number of Registrant:** 0001864290

- **d. LEI of Registrant:** 5493005BKX8X756MKL25

- **e. Address and telephone number of Registrant.**

  - **Street Address 1:** 60 State Street

  - **City:** Boston

  - **State:** MA

  - **Foreign country:** US

  - **Zip / Postal Code:** 02109

  - **Telephone number:** 617-422-4947

**Item A.2. Information about the Series.**

- **a. Name of Series:** Pioneer Municipal High Income Opportunities Fund, Inc.

- **c. LEI of Series:** 5493005BKX8X756MKL25

**Item A.3. Reporting period.**

- **a. Date of fiscal year-end:** 2026-04-30

- **b. Date as of which information is reported:** 2025-10-31

**Item A.4. Final filing**

Does the Fund anticipate that this will be its final filing on Form N-PORT? **No**

### Fund Information

**Total Assets:** $3441441.78

**Total Liabilities:** $280867.22

**Net Assets:** $3160574.56

**Cash Not Reported:** $722486.12

**Currency Risk Metrics (dv01):**

- 

**Credit Spread Risk - Investment Grade (dv01):**

- **3-Month:** 0.00000000 | **1-Year:** 0.00000000 | **5-Year:** 0.00000000 | **10-Year:** 0.00000000 | **30-Year:** 0.00000000

**Credit Spread Risk - Non-Investment Grade (dv01):**

- **3-Month:** 0.00000000 | **1-Year:** 0.00000000 | **5-Year:** -1347.00000000 | **10-Year:** 0.00000000 | **30-Year:** 0.00000000

**Monthly Return Information**

| Class               | Month 1 Return (%)   | Month 2 Return (%)   | Month 3 Return (%)   |
|:---|:---|:---|:---|
| Class ID C000000000 | -1.49%               |  |  |

**Monthly Gains & Losses**

| Period   | Net Realized Gain/Loss   | Net Unrealized Appreciation/Depreciation   |
|:---|:---|:---|
| Month 1  | $-5664400.15             | $2849009.97                                |
| Month 2  | $0.00                    | $38482.36                                  |
| Month 3  | $0.00                    | $6991.35                                   |

### Schedule of Portfolio Investments

| Name                          | Title                   | Identifiers                                   | Payoff Profile   | Asset Category   | Issuer Category   | Country   |   Balance | Units   | Value (USD)   | % of Net Assets   | Maturity Date   | Coupon Type   | Annualized Rate (%)   | Restricted?   |   Fair Value Level | Lending Status   |
|:---|:---|:---|:---|:---|:---|:---|---:|:---|:---|:---|:---|:---|:---|:---|---:|:---|
| ROCHESTER MN                  | City of Rochester MN    | CUSIP: 77158CAB7<br>LEI: 549300006EX3INSHXA95 | Long             | DBT              | MUN               | US        |   1430000 | PA      | $1356998.50   | 42.94%            | 2038-09-01      | Fixed         | 5.12%                 | No            |                  2 | On Loan: No      |
| CAPITAL TRUST AUTH FL EDUCTNL | Capital Trust Authority | CUSIP: 14054WAA3<br>LEI: N/A                  | Long             | DBT              | MUN               | US        |   1335000 | PA      | $1322624.55   | 41.85%            | 2033-12-15      | Fixed         | 5.50%                 | No            |                  2 | On Loan: No      |

### Signature

**Date Signed:** 2025-12-19

**Name of Applicant:** Pioneer Municipal High Income Opportunities Fund, Inc.

**Signature:** Carol Trevino

**Name of Signer:** Carol Trevino

**Title:** Treasurer