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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26 hedge funds and large institutions have $57.4M invested in Pioneer Municipal High Income Opportunities Fund in 2022 Q2 according to their latest regulatory filings, with 3 funds opening new positions, 13 increasing their positions, 6 reducing their positions, and 0 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
26
Holders Change
+2
Holders Change %
+8.33%
% of All Funds
0.44%
Holding in Top 10
1
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
0.02%
New
3
Increased
13
Reduced
6
Closed
–
Calls
–
Puts
–
Net Calls
–
Net Calls Change
–

Top Buyers

1
Morgan Stanley
Morgan Stanley
New York
+$6.77M
2
SIA
Sit Investment Associates
Minnesota
+$2.02M
3
MC
Matisse Capital
Oregon
+$1.2M
4
PNC Financial Services Group
PNC Financial Services Group
Pennsylvania
+$666K
5
MIG
Mariner Investment Group
New York
+$402K

Top Sellers

1
RCM
Rivernorth Capital Management
Florida
-$1.94M
2
Wells Fargo
Wells Fargo
California
-$1.35M
3
VanEck Associates
VanEck Associates
New York
-$131K
4
First Trust Advisors
First Trust Advisors
Illinois
-$95.5K
5
H6H
Hightower 6M Holding
Kansas
-$32.2K
Name Holding Trade Value Shares
Change 		Shares
Change %
IA
26
IFP Advisors
Florida
$1K – – –
1
2