MIO

Pioneer Municipal High Income Opportunities Fund
MIO

Overview Fund Activity
Delisted

MIO was delisted on the 22nd of August, 2025.

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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.

New
Increased
Maintained
Reduced
Closed
Holders
31
Holders Change
+2
Holders Change %
+6.9%
% of All Funds
0.41%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
6
Increased
13
Reduced
10
Closed
4
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
RCM
Rivernorth Capital Management
Florida
+$3.54M
2
SCM
Saba Capital Management
New York
+$2.93M
3
SIA
Sit Investment Associates
Minnesota
+$2.44M
4
AC
Almitas Capital
California
+$1.52M
5
CCG
Catalina Capital Group
California
+$219K

Top Sellers

1
Morgan Stanley
Morgan Stanley
New York
-$623K
2
KWA
Kingswood Wealth Advisors
California
-$345K
3
WFA
WMG Financial Advisors
Tennessee
-$137K
4
RCM
Robinson Capital Management
Michigan
-$123K
5
Royal Bank of Canada
Royal Bank of Canada
Ontario, Canada
-$79.7K
Name Holding Trade Value Shares
Change 		Shares
Change %
SPIA
26
Steward Partners Investment Advisory
New York
$100K – – –
AWM
27
Avior Wealth Management
Nebraska
$89.9K -$14.1K -1,190 -14%
Comerica Bank
28
Comerica Bank
Texas
$37.5K -$71 -6 -0.2%
Osaic Holdings
29
Osaic Holdings
Arizona
$15.3K +$6.53K +551 +74%
WA
30
WPG Advisers
Maryland
$2.46K +$2.46K +207 New
GWM
31
Geneos Wealth Management
Colorado
$2.38K -$1.03K -87 -30%
KWA
32
Kingswood Wealth Advisors
California
– -$345K -27,835 Closed
WFA
33
WMG Financial Advisors
Tennessee
– -$137K -11,041 Closed
RCM
34
Robinson Capital Management
Michigan
– -$123K -9,905 Closed
TRCT
35
Tower Research Capital (TRC)
New York
– -$112 -9 Closed
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