Skip to main content

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, Q3 2023

Institutional positions in Pioneer Municipal High Income Opportunities Fund, Inc. as of Sep 30, 2023. 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
29
+5 vs. Q2 2023
Shares held
7.10M
+605.2K (+9.3%) vs. Q2 2023
Total value
$67.8M
−$2.22M (−3.2%) vs. Q2 2023
New holders
9
11 more added
Sold out
4
5 more reduced

Compare with Q2 2023: 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 holdersQ3 2023: 29 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 heldQ3 2023: $67.8M
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, Q3 2023

Shares, value and share of portfolio for each institution holding Pioneer Municipal High Income Opportunities Fund, Inc.; share changes are against Q2 2023.

Institutions holding MIO in Q3 2023
InstitutionSharesValue% of portfolioChange in sharesAction
Morgan Stanley1,526,141$14.6M0.00%+48,533+3.3%Added
Saba Capital Management, L.P.1,348,407$12.9M0.41%+199,285+17.3%Added
Sit Investment Associates Inc1,146,306$10.9M0.30%+160,705+16.3%Added
Atlas Wealth LLC893,578$8.53M1.60%+22,805+2.6%Added
Wells Fargo & Company427,222$4.08M0.00%+53,738+14.4%Added
City of London Investment Management Co Ltd420,521$4.02M0.35%00.0%Unchanged
1607 Capital Partners, LLC272,247$2.60M0.20%00.0%Unchanged
Woodline Partners LP200,330$1.91M0.02%−50,008−20.0%Reduced
Advisor Partners II, LLC178,017$1.70M0.07%+178,017New
Robinson Capital Management, LLC168,542$1.61M0.72%−7,225−4.1%Reduced
Van Eck Associates Corp112,186$1.07M0.00%−14,618−11.5%Reduced
Matisse Capital110,000$1.05M0.74%00.0%Unchanged
Guggenheim Capital LLC77,085$736.2K0.01%+77,085New
Moors & Cabot, Inc.62,500$596.9K0.04%+500+0.8%Added
UBS Group AG57,184$546.1K0.00%−907−1.6%Reduced
Rockefeller Capital Management L.P.31,212$298.1K0.00%+10,000+47.1%Added
LPL Financial LLC12,266$117.1K0.00%+12,266New
HighTower Advisors, LLC12,670$110.0K0.00%−259−2.0%Reduced
Single Point Partners, LLC10,225$98.0K0.03%+10,225New
Signaturefd, LLC9,407$89.8K0.00%+112+1.2%Added
Steward Partners Investment Advisory, LLC6,461$61.7K0.00%+400+6.6%Added
Amundi5,000$48.0K0.00%00.0%Unchanged
Comerica Bank3,483$33.3K0.00%+3,483New
Gradient Investments LLC2,500$23.9K0.00%+2,500New
Wolverine Asset Management LLC1,890$18.0K0.00%+1,890New
Advisor Group Holdings, Inc.1,144$10.9K0.00%+229+25.0%Added
Northwestern Mutual Wealth Management Co1,000$9.55K0.00%+1,000New
Bessemer Group Inc245$2.00K0.00%+19+8.4%Added
JPMorgan Chase & Co154$1.47K0.00%+154New
Rivernorth Capital Management, LLC0$00.00%−66,086−100.0%Sold out
Bank of New York Mellon Corp0$00.00%−23,659−100.0%Sold out
GWM Advisors LLC0$00.00%−14,900−100.0%Sold out
CWM, LLC0$00.00%−67−100.0%Sold out