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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, Q1 2025

Institutional positions in Pioneer Municipal High Income Opportunities Fund, Inc. as of Mar 31, 2025. 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
34
+3 vs. Q4 2024
Shares held
9.25M
+53.6K (+0.6%) vs. Q4 2024
Total value
$109.3M
+$268.4K (+0.2%) vs. Q4 2024
New holders
6
10 more added
Sold out
3
14 more reduced

Compare with Q4 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 holdersQ1 2025: 34 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 heldQ1 2025: $109.3M
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, Q1 2025

Shares, value and share of portfolio for each institution holding Pioneer Municipal High Income Opportunities Fund, Inc.; share changes are against Q4 2024.

Institutions holding MIO in Q1 2025
InstitutionSharesValue% of portfolioChange in sharesAction
Sit Investment Associates Inc2,545,042$30.0M0.70%+14,565+0.6%Added
Saba Capital Management, L.P.2,113,637$24.9M0.68%+33,699+1.6%Added
Rivernorth Capital Management, LLC1,575,851$18.6M0.99%+144,076+10.1%Added
Morgan Stanley694,482$8.19M0.00%−96,575−12.2%Reduced
Pathstone Holdings, LLC542,316$6.68M0.03%−91,059−14.4%Reduced
Guggenheim Capital LLC429,945$5.07M0.05%−7,452−1.7%Reduced
Wells Fargo & Company346,432$4.08M0.00%−44,316−11.3%Reduced
Almitas Capital LLC214,870$2.53M0.84%−16,187−7.0%Reduced
Hennion & Walsh Asset Management, Inc.133,165$1.57M0.07%+133,165New
Royal Bank of Canada83,000$979.0K0.00%−276−0.3%Reduced
Van Eck Associates Corp80,462$949.0K0.00%−41,454−34.0%Reduced
Verition Fund Management LLC75,356$888.4K0.01%+75,356New
Invesco Ltd.59,729$704.2K0.00%+899+1.5%Added
Thomas J. Herzfeld Advisors, Inc.52,597$620.1K0.21%+9,753+22.8%Added
Avantax Advisory Services, Inc.47,320$557.9K0.00%+1,782+3.9%Added
UBS Group AG39,701$468.1K0.00%+1,888+5.0%Added
Noble Wealth Management PBC35,783$421.9K0.29%+8,868+32.9%Added
Bank of New York Mellon Corp35,431$417.7K0.00%00.0%Unchanged
Blue Bell Private Wealth Management, LLC23,139$272.8K0.05%−2,378−9.3%Reduced
Catalina Capital Group, LLC18,491$218.0K0.15%00.0%Unchanged
Auxier Asset Management17,208$202.9K0.03%+17,208New
Melfa Wealth Management, LLC16,850$198.7K0.13%00.0%Unchanged
Susquehanna International Group, LLP15,106$178.1K0.00%+15,106New
Raymond James Financial Inc13,355$157.5K0.00%−701−5.0%Reduced
Fountainhead AM, LLC10,340$121.9K0.02%−18,644−64.3%Reduced
Signaturefd, LLC10,185$120.1K0.00%+127+1.3%Added
Steward Partners Investment Advisory, LLC8,429$99.4K0.00%00.0%Unchanged
Comerica Bank3,158$37.2K0.00%−4−0.1%Reduced
CIBC Private Wealth Group, LLC2,500$28.4K0.00%+2,500New
Atala Financial Inc1,880$22.2K0.02%−30,161−94.1%Reduced
Advisor Group Holdings, Inc.1,060$12.5K0.00%−233−18.0%Reduced
Geneos Wealth Management Inc.652$7.69K0.00%+451+224.4%Added
WPG Advisers, LLC85$1.00K0.00%−122−58.9%Reduced
Coldstream Capital Management Inc44$5190.00%+44New
Sanctuary Advisors, LLC0$00.00%−34,260−100.0%Sold out
Independent Advisor Alliance0$00.00%−14,515−100.0%Sold out
Nelson, Van Denburg & Campbell Wealth Management Group, LLC0$00.00%−7,583−100.0%Sold out