Data I/O
DAIO
35 hedge funds and large institutions have $12.2M invested in Data I/O in 2026 Q2 according to their latest regulatory filings, with 9 funds opening new positions, 9 increasing their positions, 6 reducing their positions, and 3 closing their positions.
200% more first-time investments, than exits
New positions opened: 9 | Existing positions closed: 3
69% more capital invested
Capital invested by funds: $7.22M → $12.2M (+$4.99M)
50% more repeat investments, than reductions
Existing positions increased: 9 | Existing positions reduced: 6
21% more funds holding
Funds holding: 29 → 35 (+6)
2.52% more ownership
Funds ownership: 30.56% → 33.08% (+2.5%)
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Citadel Advisors
Miami,
Florida
|
+$273K |
| 2 |
Geode Capital Management
Boston,
Massachusetts
|
+$88.5K |
| 3 |
Vanguard Capital Management
Malvern,
Pennsylvania
|
+$76.2K |
| 4 |
TDC
Thompson Davis & Co
Richmond,
Virginia
|
+$73.9K |
| 5 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$68.1K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Acadian Asset Management
Boston,
Massachusetts
|
-$48.8K |
| 2 |
Renaissance Technologies
New York
|
-$47.7K |
| 3 |
Goldman Sachs
New York
|
-$34.9K |
| 4 |
LPL Financial
San Diego,
California
|
-$4.85K |
| 5 |
TRCT
Tower Research Capital (TRC)
New York
|
-$4.29K |
DAIO Hedge Fund Activity: Q2 2026 in Review
35 of the 8,318 institutional investors tracked by Wall St. Rank reported a position in Data I/O (DAIO) for Q2 2026, worth a combined $12.2M — up 69% from $7.22M a quarter earlier.
Buyers outnumbered sellers: 9 funds opened new DAIO positions and 3 closed out — a net gain of 6 holders — while 9 added to existing stakes and 6 trimmed.
The largest buyer was Citadel Advisors, opening a new position worth an estimated $273K. The largest seller was Acadian Asset Management, cutting an estimated $48.8K.
- 35 institutional investors held Data I/O (DAIO) as of Q2 2026, up from 29 in Q1 2026.
- Funds reported $12.2M of Data I/O stock for Q2 2026, up 69% quarter-over-quarter.
- 9 funds opened new Data I/O positions in Q2 2026 and 3 closed out, a net change of +6 holders.
- The largest Data I/O buyer in Q2 2026 was Citadel Advisors, an estimated $273K added.
- The largest Data I/O seller in Q2 2026 was Acadian Asset Management, an estimated $48.8K sold.
Based on aggregated 13F filings for Q2 2026.