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Pioneer Municipal High Income Opportunities Fund, Inc.

MIODelisted Aug 27, 2025

Pioneer Municipal High Income Opportunities Fund, Inc. was delisted on Aug 27, 2025; its insiders filed their last Form 4 on Sep 2, 2025; 31 institutions reported holding it in 13F filings for Q2 2025, worth $108.4M in total; no superinvestor held it.

Q3 2022 vs. Q2 2022

How the institutions holding Pioneer Municipal High Income Opportunities Fund, Inc. changed between Q2 2022 and Q3 2022.

All holders in Q3 2022All holders in Q2 2022

13F holders of MIO: Q2 2022 compared with Q3 2022
MeasureQ2 2022Q3 2022Change
Holders2625−1
Shares4.74M4.89M+148.1K (+3.1%)
Value$57.4M$49.5M−$7.84M (−13.7%)

New holders (1)

Institutions that held Pioneer Municipal High Income Opportunities Fund, Inc. at the end of Q3 2022 but not at the end of Q2 2022.

Institutions new to MIO in Q3 2022
InstitutionSharesValue% of portfolio
Single Point Partners, LLC10,225$104.0K0.03%

Sold out (2)

Institutions that held Pioneer Municipal High Income Opportunities Fund, Inc. at the end of Q2 2022 and filed for Q3 2022 without it.

Institutions that sold out of MIO in Q3 2022
InstitutionShares, Q2 2022Value, Q2 2022
Ackerman Capital Advisors, LLC33,741$409.0K
Bulldog Investors, LLP26,406$320.0K