Pioneer Municipal High Income Opportunities Fund
MIO
MIO was delisted on the 22nd of August, 2025.
31 hedge funds and large institutions have $109M invested in Pioneer Municipal High Income Opportunities Fund in 2024 Q4 according to their latest regulatory filings, with 6 funds opening new positions, 13 increasing their positions, 10 reducing their positions, and 4 closing their positions.
50% more first-time investments, than exits
New positions opened: 6 | Existing positions closed: 4
30% more repeat investments, than reductions
Existing positions increased: 13 | Existing positions reduced: 10
7% more funds holding
Funds holding: 29 → 31 (+2)
6% more capital invested
Capital invested by funds: $103M → $109M (+$6.35M)
5.38% more ownership
Funds ownership: 49.06% → 54.43% (+5.4%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
RCM
Rivernorth Capital Management
West Palm Beach,
Florida
|
+$3.63M |
| 2 |
SCM
Saba Capital Management
New York
|
+$3.01M |
| 3 |
SIA
Sit Investment Associates
Minneapolis,
Minnesota
|
+$2.5M |
| 4 |
AC
Almitas Capital
Santa Monica,
California
|
+$1.56M |
| 5 |
CCG
Catalina Capital Group
Torrance,
California
|
+$225K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Morgan Stanley
New York
|
-$638K |
| 2 |
KWA
Kingswood Wealth Advisors
San Diego,
California
|
-$345K |
| 3 |
WFA
WMG Financial Advisors
Knoxville,
Tennessee
|
-$137K |
| 4 |
RCM
Robinson Capital Management
Grosse Pointe Farms,
Michigan
|
-$123K |
| 5 |
Royal Bank of Canada
Toronto,
Ontario, Canada
|
-$81.7K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
SPIA
26
Steward Partners Investment Advisory
New York
| $100K | – | – | – |
|
|
AWM
27
Avior Wealth Management
Omaha,
Nebraska
| $89.9K | -$14.5K | -1,190 | -14% |
|
28
Comerica Bank
Dallas,
Texas
| $37.5K | -$73 | -6 | -0.2% |
|
29
Osaic Holdings
Scottsdale,
Arizona
| $15.3K | +$6.69K | +551 | +74% |
|
|
WA
30
WPG Advisers
Baltimore,
Maryland
| $2.46K | +$2.52K | +207 | New |
|
|
GWM
31
Geneos Wealth Management
Englewood,
Colorado
| $2.38K | -$1.06K | -87 | -30% |
|
|
KWA
32
Kingswood Wealth Advisors
San Diego,
California
| – | -$345K | -27,835 | Closed |
|
|
WFA
33
WMG Financial Advisors
Knoxville,
Tennessee
| – | -$137K | -11,041 | Closed |
|
|
RCM
34
Robinson Capital Management
Grosse Pointe Farms,
Michigan
| – | -$123K | -9,905 | Closed |
|
|
TRCT
35
Tower Research Capital (TRC)
New York
| – | -$112 | -9 | Closed |
|
MIO Hedge Fund Activity: Q4 2024 in Review
31 of the 7,593 institutional investors tracked by Wall St. Rank reported a position in Pioneer Municipal High Income Opportunities Fund (MIO) for Q4 2024, worth a combined $109M — up 6.2% from $103M a quarter earlier.
Buyers outnumbered sellers: 6 funds opened new MIO positions and 4 closed out — a net gain of 2 holders — while 13 added to existing stakes and 10 trimmed.
The largest buyer was Rivernorth Capital Management, adding an estimated $3.63M. The largest seller was Morgan Stanley, cutting an estimated $638K.
- 31 institutional investors held Pioneer Municipal High Income Opportunities Fund (MIO) as of Q4 2024, up from 29 in Q3 2024.
- Funds reported $109M of Pioneer Municipal High Income Opportunities Fund stock for Q4 2024, up 6.2% quarter-over-quarter.
- 6 funds opened new Pioneer Municipal High Income Opportunities Fund positions in Q4 2024 and 4 closed out, a net change of +2 holders.
- The largest Pioneer Municipal High Income Opportunities Fund buyer in Q4 2024 was Rivernorth Capital Management, an estimated $3.63M added.
- The largest Pioneer Municipal High Income Opportunities Fund seller in Q4 2024 was Morgan Stanley, an estimated $638K sold.
Based on aggregated 13F filings for Q4 2024.