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Data I/O

27 hedge funds and large institutions have $8.44M invested in Data I/O in 2025 Q4 according to their latest regulatory filings, with 3 funds opening new positions, 8 increasing their positions, 7 reducing their positions, and 2 closing their positions.

New
Increased
Maintained
Reduced
Closed
Holders
27
Holders Change
Holders Change %
% of All Funds
Holding in Top 10
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
New
Increased
Reduced
Closed
Calls
$1.25M
Puts
Net Calls
Net Calls Change

Top Sellers

1 -$390K
2 -$243K
3 -$118K
4
Citadel Advisors
Citadel Advisors
Florida
-$26.1K
5
Vanguard Group
Vanguard Group
Pennsylvania
-$24.3K