Data I/O
DAIO
26 hedge funds and large institutions have $10.6M invested in Data I/O in 2025 Q2 according to their latest regulatory filings, with 3 funds opening new positions, 10 increasing their positions, 6 reducing their positions, and 3 closing their positions.
67% more repeat investments, than reductions
Existing positions increased: 10 | Existing positions reduced: 6
41% more capital invested
Capital invested by funds: $7.51M → $10.6M (+$3.08M)
4.53% more ownership
Funds ownership: 33.18% → 37.71% (+4.5%)
0% more funds holding
Funds holding: 26 → 26 (0)
0% more first-time investments, than exits
New positions opened: 3 | Existing positions closed: 3
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
PM
Penbrook Management
New York
|
+$881K |
| 2 |
EIM
Essex Investment Management
Boston,
Massachusetts
|
+$78K |
| 3 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$57.2K |
| 4 |
SPIA
Steward Partners Investment Advisory
New York
|
+$52.7K |
| 5 |
Dimensional Fund Advisors
Austin,
Texas
|
+$32.1K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
SIC
Salem Investment Counselors
Winston Salem,
North Carolina
|
-$38.7K |
| 2 |
Acadian Asset Management
Boston,
Massachusetts
|
-$33.6K |
| 3 |
KA
Kovack Advisors
Ft. Lauderdale,
Florida
|
-$31.7K |
| 4 |
Renaissance Technologies
New York
|
-$8.24K |
| 5 |
CSC
Caldwell Sutter Capital
Sausalito,
California
|
-$1.44K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
|
SS
26
SBI Securities
Tokyo,
Japan
| $3 | – | – | – |
|
|
SIC
27
Salem Investment Counselors
Winston Salem,
North Carolina
| – | -$38.7K | -15,796 | Closed |
|
|
CSC
28
Caldwell Sutter Capital
Sausalito,
California
| – | -$1.44K | -588 | Closed |
|
29
JP Morgan Chase
New York
| – | -$42 | -17 | Closed |
|
DAIO Hedge Fund Activity: Q2 2025 in Review
26 of the 7,596 institutional investors tracked by Wall St. Rank reported a position in Data I/O (DAIO) for Q2 2025, worth a combined $10.6M — up 41% from $7.51M a quarter earlier.
Fund positioning in DAIO was balanced in Q2 2025: 3 funds opened new positions, 3 closed out, 10 added to existing stakes and 6 trimmed.
The largest buyer was Penbrook Management, adding an estimated $881K. The largest seller was Salem Investment Counselors, exiting entirely with an estimated $38.7K sold.
- 26 institutional investors held Data I/O (DAIO) as of Q2 2025, unchanged from Q1 2025.
- Funds reported $10.6M of Data I/O stock for Q2 2025, up 41% quarter-over-quarter.
- 3 funds opened new Data I/O positions in Q2 2025 and 3 closed out, a net change of 0 holders.
- The largest Data I/O buyer in Q2 2025 was Penbrook Management, an estimated $881K added.
- The largest Data I/O seller in Q2 2025 was Salem Investment Counselors, an estimated $38.7K sold.
Based on aggregated 13F filings for Q2 2025.