Data I/O
DAIO
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.
20% more repeat investments, than reductions
Existing positions increased: 6 | Existing positions reduced: 5
0.78% less ownership
Funds ownership: 33.96% → 33.18% (-0.78%)
10% less funds holding
Funds holding: 29 → 26 (-3)
14% less capital invested
Capital invested by funds: $8.69M → $7.51M (-$1.18M)
46% less call options, than puts
Call options by funds: $7K | Put options by funds: $13K
75% less first-time investments, than exits
New positions opened: 1 | Existing positions closed: 4
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Dimensional Fund Advisors
Austin,
Texas
|
+$23.4K |
| 2 |
EIM
Essex Investment Management
Boston,
Massachusetts
|
+$12.9K |
| 3 |
Citadel Advisors
Miami,
Florida
|
+$8.69K |
| 4 |
KA
Kovack Advisors
Ft. Lauderdale,
Florida
|
+$6.13K |
| 5 |
Simplex Trading
Chicago,
Illinois
|
+$6.12K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$103K |
| 2 |
Renaissance Technologies
New York
|
-$67K |
| 3 |
UBS Group
Zurich,
Switzerland
|
-$42.4K |
| 4 |
Janney Montgomery Scott
Philadelphia,
Pennsylvania
|
-$37K |
| 5 |
PM
Penbrook Management
New York
|
-$5.58K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
SS
26
SBI Securities
Tokyo,
Japan
| $2 | – | – | – |
|
|
27
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
| – | -$103K | -37,355 | Closed |
|
|
28
UBS Group
Zurich,
Switzerland
| – | -$42.4K | -15,294 | Closed |
|
|
29
Janney Montgomery Scott
Philadelphia,
Pennsylvania
| – | -$37K | -13,500 | Closed |
|
30
Morgan Stanley
New York
| – | -$277 | -100 | Closed |
|
DAIO Hedge Fund Activity: Q1 2025 in Review
26 of the 7,458 institutional investors tracked by Wall St. Rank reported a position in Data I/O (DAIO) for Q1 2025, worth a combined $7.51M — down 14% from $8.69M a quarter earlier.
Sellers outnumbered buyers: 4 funds closed out of DAIO and 1 opened new positions — a net loss of 3 holders — while 5 trimmed existing stakes and 6 added.
The largest buyer was Dimensional Fund Advisors, adding an estimated $23.4K. The largest seller was Susquehanna International Group, exiting entirely with an estimated $103K sold.
- 26 institutional investors held Data I/O (DAIO) as of Q1 2025, down from 29 in Q4 2024.
- Funds reported $7.51M of Data I/O stock for Q1 2025, down 14% quarter-over-quarter.
- 1 fund opened new Data I/O positions in Q1 2025 and 4 closed out, a net change of -3 holders.
- The largest Data I/O buyer in Q1 2025 was Dimensional Fund Advisors, an estimated $23.4K added.
- The largest Data I/O seller in Q1 2025 was Susquehanna International Group, an estimated $103K sold.
Based on aggregated 13F filings for Q1 2025.