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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.

Q2 2022 vs. Q1 2022

How the institutions holding Pioneer Municipal High Income Opportunities Fund, Inc. changed between Q1 2022 and Q2 2022.

All holders in Q2 2022All holders in Q1 2022

13F holders of MIO: Q1 2022 compared with Q2 2022
MeasureQ1 2022Of which not filed for Q2 2022Q2 2022Change
Holders24126+3
Shares4.26M291.9K4.74M+765.4K (+19.3%)
Value$63.4M$4.34M$57.4M−$1.63M (−2.8%)

1 institution that held it in Q1 2022 haven't filed for Q2 2022 yet. Not filing isn't selling, so the changes leave them out.

New holders (3)

Institutions that held Pioneer Municipal High Income Opportunities Fund, Inc. at the end of Q2 2022 but not at the end of Q1 2022.

Institutions new to MIO in Q2 2022
InstitutionSharesValue% of portfolio
Matisse Capital99,100$1.20M1.14%
The PNC Financial Services Group, Inc.55,000$666.0K0.00%
Royal Bank of Canada10,000$121.0K0.00%

Sold out (0)

Institutions that held Pioneer Municipal High Income Opportunities Fund, Inc. at the end of Q1 2022 and filed for Q2 2022 without it.

None.

Not filed for Q2 2022 yet (1)

Institutions that held Pioneer Municipal High Income Opportunities Fund, Inc. at the end of Q1 2022 and haven't filed a 13F for Q2 2022. Not filing isn't selling, so they aren't counted as sold out.

Institutions holding MIO in Q1 2022 that haven't filed for Q2 2022
InstitutionShares, Q1 2022Value, Q1 2022
Parametric Portfolio Associates LLC291,900$4.34M