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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.

13F holders, Q4 2024

Institutional positions in Pioneer Municipal High Income Opportunities Fund, Inc. as of Dec 31, 2024. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works

Institutional holders
31
+2 vs. Q3 2024
Shares held
9.19M
+908.0K (+11.0%) vs. Q3 2024
Total value
$109.1M
+$6.35M (+6.2%) vs. Q3 2024
New holders
6
13 more added
Sold out
4
10 more reduced

Compare with Q3 2024: new holders, sold out and not filed yet

Holders and value by quarter

Institutions reporting MIO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.

Institutional holdersQ4 2024: 31 institutions
Q1 2021: 0 institutionsQ2 2021: 0 institutionsQ3 2021: 7 institutionsQ4 2021: 23 institutionsQ1 2022: 24 institutionsQ2 2022: 26 institutionsQ3 2022: 25 institutionsQ4 2022: 26 institutionsQ1 2023: 25 institutionsQ2 2023: 24 institutionsQ3 2023: 29 institutionsQ4 2023: 33 institutionsQ1 2024: 31 institutionsQ2 2024: 32 institutionsQ3 2024: 29 institutionsQ4 2024: 31 institutionsQ1 2025: 34 institutionsQ2 2025: 31 institutionsQ3 2025: 1 institutionQ4 2025: 0 institutionsQ1 2026: 0 institutionsQ2 2026: 0 institutions
Value heldQ4 2024: $109.1M
Q1 2021: $0Q2 2021: $0Q3 2021: $22.8MQ4 2021: $71.4MQ1 2022: $63.4MQ2 2022: $57.4MQ3 2022: $49.5MQ4 2022: $60.4MQ1 2023: $64.8MQ2 2023: $70.0MQ3 2023: $67.8MQ4 2023: $76.5MQ1 2024: $84.3MQ2 2024: $106.4MQ3 2024: $102.7MQ4 2024: $109.1MQ1 2025: $109.3MQ2 2025: $108.4MQ3 2025: $12.1KQ4 2025: $0Q1 2026: $0Q2 2026: $0
Institutions holding MIO and their total value by quarter
QuarterHoldersValue
Q2 20260$0
Q1 20260$0
Q4 20250$0
Q3 20251$12.1K
Q2 202531$108.4M
Q1 202534$109.3M
Q4 202431$109.1M
Q3 202429$102.7M
Q2 202432$106.4M
Q1 202431$84.3M
Q4 202333$76.5M
Q3 202329$67.8M
Q2 202324$70.0M
Q1 202325$64.8M
Q4 202226$60.4M
Q3 202225$49.5M
Q2 202226$57.4M
Q1 202224$63.4M
Q4 202123$71.4M
Q3 20217$22.8M
Q2 20210$0
Q1 20210$0

Institutions, Q4 2024

Shares, value and share of portfolio for each institution holding Pioneer Municipal High Income Opportunities Fund, Inc.; share changes are against Q3 2024.

Institutions holding MIO in Q4 2024
InstitutionSharesValue% of portfolioChange in sharesAction
Sit Investment Associates Inc2,530,477$30.0M0.68%+205,634+8.8%Added
Saba Capital Management, L.P.2,079,938$24.7M0.62%+247,384+13.5%Added
Rivernorth Capital Management, LLC1,431,775$17.0M0.82%+298,828+26.4%Added
Morgan Stanley791,057$9.38M0.00%−52,519−6.2%Reduced
Pathstone Holdings, LLC633,375$7.51M0.03%−4,384−0.7%Reduced
Guggenheim Capital LLC437,397$5.19M0.04%+8,613+2.0%Added
Wells Fargo & Company390,748$4.63M0.00%−4,765−1.2%Reduced
Almitas Capital LLC231,057$2.74M0.60%+128,460+125.2%Added
Van Eck Associates Corp121,916$1.45M0.00%+2,279+1.9%Added
Royal Bank of Canada83,276$987.0K0.00%−6,724−7.5%Reduced
Invesco Ltd.58,830$697.7K0.00%−502−0.8%Reduced
Avantax Advisory Services, Inc.45,538$540.1K0.00%+16,025+54.3%Added
Thomas J. Herzfeld Advisors, Inc.42,844$508.1K0.16%+5,528+14.8%Added
UBS Group AG37,813$448.5K0.00%+6,281+19.9%Added
Bank of New York Mellon Corp35,431$420.2K0.00%−10.0%Reduced
Sanctuary Advisors, LLC34,260$414.5K0.00%−10.0%Reduced
Atala Financial Inc32,041$380.0K0.27%+32,041New
Fountainhead AM, LLC28,984$343.8K0.06%+228+0.8%Added
Noble Wealth Management PBC26,915$319.2K0.22%+26,915New
Blue Bell Private Wealth Management, LLC25,517$302.6K0.06%+783+3.2%Added
Catalina Capital Group, LLC18,491$219.3K0.07%+18,491New
Melfa Wealth Management, LLC16,850$199.8K0.13%00.0%Unchanged
Independent Advisor Alliance14,515$172.1K0.00%+14,515New
Raymond James Financial Inc14,056$166.7K0.00%+14,056New
Signaturefd, LLC10,058$119.3K0.00%+123+1.2%Added
Steward Partners Investment Advisory, LLC8,429$100.0K0.00%00.0%Unchanged
Nelson, Van Denburg & Campbell Wealth Management Group, LLC7,583$89.9K0.00%−1,190−13.6%Reduced
Comerica Bank3,162$37.5K0.00%−6−0.2%Reduced
Advisor Group Holdings, Inc.1,293$15.3K0.00%+551+74.3%Added
WPG Advisers, LLC207$2.46K0.00%+207New
Geneos Wealth Management Inc.201$2.38K0.00%−87−30.2%Reduced
Kingswood Wealth Advisors, LLC0$00.00%−27,835−100.0%Sold out
WMG Financial Advisors, LLC0$00.00%−11,041−100.0%Sold out
Robinson Capital Management, LLC0$00.00%−9,905−100.0%Sold out
Tower Research Capital LLC (TRC)0$00.00%−9−100.0%Sold out