Pioneer Municipal High Income Opportunities Fund
MIO
MIO was delisted on the 22nd of August, 2025.
24 hedge funds and large institutions have $70M invested in Pioneer Municipal High Income Opportunities Fund in 2023 Q2 according to their latest regulatory filings, with 4 funds opening new positions, 8 increasing their positions, 5 reducing their positions, and 5 closing their positions.
60% more repeat investments, than reductions
Existing positions increased: 8 | Existing positions reduced: 5
8% more capital invested
Capital invested by funds: $64.8M → $70M (+$5.21M)
3.32% more ownership
Funds ownership: 35.12% → 38.44% (+3.3%)
4% less funds holding
Funds holding: 25 → 24 (-1)
20% less first-time investments, than exits
New positions opened: 4 | Existing positions closed: 5
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
RCM
Robinson Capital Management
Grosse Pointe Farms,
Michigan
|
+$1.86M |
| 2 |
AW
Atlas Wealth
Cincinnati,
Ohio
|
+$1.79M |
| 3 |
SCM
Saba Capital Management
New York
|
+$1.1M |
| 4 |
Wells Fargo
San Francisco,
California
|
+$779K |
| 5 |
RCM
Rivernorth Capital Management
West Palm Beach,
Florida
|
+$698K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
WP
Woodline Partners
San Francisco,
California
|
-$207K |
| 2 |
LPL Financial
San Diego,
California
|
-$137K |
| 3 |
SPP
Single Point Partners
Boston,
Massachusetts
|
-$112K |
| 4 |
UBS Group
Zurich,
Switzerland
|
-$106K |
| 5 |
Osaic Holdings
Scottsdale,
Arizona
|
-$43.1K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
SPP
26
Single Point Partners
Boston,
Massachusetts
| – | -$112K | -10,225 | Closed |
|
27
Royal Bank of Canada
Toronto,
Ontario, Canada
| – | -$30K | -2,811 | Closed |
|
|
BWA
28
BDO Wealth Advisors
Jacksonville,
Florida
| – | -$4.02K | -368 | Closed |
|
29
JP Morgan Chase
New York
| – | -$1K | -47 | Closed |
|
MIO Hedge Fund Activity: Q2 2023 in Review
24 of the 6,370 institutional investors tracked by Wall St. Rank reported a position in Pioneer Municipal High Income Opportunities Fund (MIO) for Q2 2023, worth a combined $70M — up 8% from $64.8M a quarter earlier.
Sellers outnumbered buyers: 5 funds closed out of MIO and 4 opened new positions — a net loss of 1 holder — while 5 trimmed existing stakes and 8 added.
The largest buyer was Robinson Capital Management, opening a new position worth an estimated $1.86M. The largest seller was Woodline Partners, cutting an estimated $207K.
- 24 institutional investors held Pioneer Municipal High Income Opportunities Fund (MIO) as of Q2 2023, down from 25 in Q1 2023.
- Funds reported $70M of Pioneer Municipal High Income Opportunities Fund stock for Q2 2023, up 8% quarter-over-quarter.
- 4 funds opened new Pioneer Municipal High Income Opportunities Fund positions in Q2 2023 and 5 closed out, a net change of -1 holder.
- The largest Pioneer Municipal High Income Opportunities Fund buyer in Q2 2023 was Robinson Capital Management, an estimated $1.86M added.
- The largest Pioneer Municipal High Income Opportunities Fund seller in Q2 2023 was Woodline Partners, an estimated $207K sold.
Based on aggregated 13F filings for Q2 2023.