Pioneer Municipal High Income Opportunities Fund
MIO
MIO was delisted on the 22nd of August, 2025.
32 hedge funds and large institutions have $106M invested in Pioneer Municipal High Income Opportunities Fund in 2024 Q2 according to their latest regulatory filings, with 8 funds opening new positions, 11 increasing their positions, 9 reducing their positions, and 7 closing their positions.
26% more capital invested
Capital invested by funds: $84.3M → $106M (+$22.1M)
22% more repeat investments, than reductions
Existing positions increased: 11 | Existing positions reduced: 9
14% more first-time investments, than exits
New positions opened: 8 | Existing positions closed: 7
9.91% more ownership
Funds ownership: 44.17% → 54.08% (+9.9%)
3% more funds holding
Funds holding: 31 → 32 (+1)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
AW
Atlas Wealth
Cincinnati,
Ohio
|
+$12.6M |
| 2 |
RCM
Rivernorth Capital Management
West Palm Beach,
Florida
|
+$8.55M |
| 3 |
SIA
Sit Investment Associates
Minneapolis,
Minnesota
|
+$1.9M |
| 4 |
GC
Guggenheim Capital
Chicago,
Illinois
|
+$1.56M |
| 5 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
+$1.19M |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
COLIM
City of London Investment Management
London,
United Kingdom
|
-$3.15M |
| 2 |
1CP
1607 Capital Partners
Richmond,
Virginia
|
-$1.84M |
| 3 |
RCM
Robinson Capital Management
Grosse Pointe Farms,
Michigan
|
-$1.46M |
| 4 |
Morgan Stanley
New York
|
-$550K |
| 5 |
CRC
Curi RMB Capital
Chicago,
Illinois
|
-$396K |
MIO Hedge Fund Activity: Q2 2024 in Review
32 of the 6,925 institutional investors tracked by Wall St. Rank reported a position in Pioneer Municipal High Income Opportunities Fund (MIO) for Q2 2024, worth a combined $106M — up 26% from $84.3M a quarter earlier.
Buyers outnumbered sellers: 8 funds opened new MIO positions and 7 closed out — a net gain of 1 holder — while 11 added to existing stakes and 9 trimmed.
The largest buyer was Atlas Wealth, opening a new position worth an estimated $12.6M. The largest seller was City of London Investment Management, cutting an estimated $3.15M.
- 32 institutional investors held Pioneer Municipal High Income Opportunities Fund (MIO) as of Q2 2024, up from 31 in Q1 2024.
- Funds reported $106M of Pioneer Municipal High Income Opportunities Fund stock for Q2 2024, up 26% quarter-over-quarter.
- 8 funds opened new Pioneer Municipal High Income Opportunities Fund positions in Q2 2024 and 7 closed out, a net change of +1 holder.
- The largest Pioneer Municipal High Income Opportunities Fund buyer in Q2 2024 was Atlas Wealth, an estimated $12.6M added.
- The largest Pioneer Municipal High Income Opportunities Fund seller in Q2 2024 was City of London Investment Management, an estimated $3.15M sold.
Based on aggregated 13F filings for Q2 2024.