DAIO icon

Data I/O
DAIO

Overview Fund Activity

26 hedge funds and large institutions have $7.51M invested in Data I/O in 2025 Q1 according to their latest regulatory filings, with 1 funds opening new positions, 6 increasing their positions, 5 reducing their positions, and 4 closing their positions.

Holders
26
Holders Change
-3
Holders Change %
-10.34%
% of All Funds
0.35%
Holding in Top 10
–
Holding in Top 10 Change
–
Holding in Top 10 Change %
–
% of All Funds
–
New
1
Increased
6
Reduced
5
Closed
4
Calls
$7K
Puts
$13K
Net Calls
-$6K
Net Calls Change
–

Top Buyers

1
Dimensional Fund Advisors
1
Dimensional Fund Advisors
Texas
$631K
2
EIM
2
Essex Investment Management
Massachusetts
$107K
3
Citadel Advisors
3
Citadel Advisors
Florida
$101K
4
KA
4
Kovack Advisors
Florida
$691K
5
Simplex Trading
5
Simplex Trading
Illinois
$5K

Top Sellers

1
Susquehanna International Group
1
Susquehanna International Group
Pennsylvania
$0
2
Renaissance Technologies
2
Renaissance Technologies
New York
$1.18M
3
UBS Group
3
UBS Group
Switzerland
$0
4
Janney Montgomery Scott
4
Janney Montgomery Scott
Pennsylvania
$0
5
PM
5
Penbrook Management
New York
$660K
Name Market Value Shares Shares
Change 		Shares
Change %
SS
26
SBI Securities
Japan
$2 1 – –
Susquehanna International Group
27
Susquehanna International Group
Pennsylvania
– – -37,355 Closed
UBS Group
28
UBS Group
Switzerland
– – -15,294 Closed
Janney Montgomery Scott
29
Janney Montgomery Scott
Pennsylvania
– – -13,500 Closed
Morgan Stanley
30
Morgan Stanley
New York
– – -100 Closed
CFGS
31
Concourse Financial Group Securities
Alabama
– – – –
1
2