Data I/O
DAIO
29 hedge funds and large institutions have $7.22M invested in Data I/O in 2026 Q1 according to their latest regulatory filings, with 7 funds opening new positions, 3 increasing their positions, 6 reducing their positions, and 4 closing their positions.
75% more first-time investments, than exits
New positions opened: 7 | Existing positions closed: 4
7% more funds holding
Funds holding: 27 → 29 (+2)
0.91% less ownership
Funds ownership: 31.47% → 30.56% (-0.91%)
4% less call options, than puts
Call options by funds: $133K | Put options by funds: $139K
14% less capital invested
Capital invested by funds: $8.44M → $7.22M (-$1.22M)
50% less repeat investments, than reductions
Existing positions increased: 3 | Existing positions reduced: 6
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
LPL Financial
San Diego,
California
|
+$65.6K |
| 2 |
Goldman Sachs
New York
|
+$40.1K |
| 3 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
+$32.4K |
| 4 |
UBS Group
Zurich,
Switzerland
|
+$2.74K |
| 5 |
Simplex Trading
Chicago,
Illinois
|
+$2.41K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Dimensional Fund Advisors
Austin,
Texas
|
-$115K |
| 2 |
Citadel Advisors
Miami,
Florida
|
-$95.7K |
| 3 |
Renaissance Technologies
New York
|
-$87.3K |
| 4 |
Geode Capital Management
Boston,
Massachusetts
|
-$51.6K |
| 5 |
DS
DRW Securities
Chicago,
Illinois
|
-$37.2K |
| Name | Holding | Trade Value |
Shares Change |
Change in Stake |
|
|---|---|---|---|---|---|
26
Group One Trading
Chicago,
Illinois
| $253 | +$291 | +100 | New |
|
|
HNB
27
Huntington National Bank
Columbus,
Ohio
| $3 | – | – | – |
|
|
SS
28
SBI Securities
Tokyo,
Japan
| $3 | – | – | – |
|
|
29
Citadel Advisors
Miami,
Florida
| – | -$95.7K | -32,882 | Closed |
|
|
DS
30
DRW Securities
Chicago,
Illinois
| – | -$37.2K | -11,731 | Closed |
|
|
CAL
31
Capital Analysts LLC
Fort Washington,
Pennsylvania
| – | -$1K | -159 | Closed |
|
32
Bank of America
Charlotte,
North Carolina
| – | -$275 | -87 | Closed |
|
33
Royal Bank of Canada
Toronto,
Ontario, Canada
| – | +$76 | +26 | +24% |
|
DAIO Hedge Fund Activity: Q1 2026 in Review
29 of the 8,126 institutional investors tracked by Wall St. Rank reported a position in Data I/O (DAIO) for Q1 2026, worth a combined $7.22M — down 14% from $8.44M a quarter earlier.
Buyers outnumbered sellers: 7 funds opened new DAIO positions and 4 closed out — a net gain of 3 holders — while 3 added to existing stakes and 6 trimmed.
The largest buyer was LPL Financial, opening a new position worth an estimated $65.6K. The largest seller was Dimensional Fund Advisors, cutting an estimated $115K.
- 29 institutional investors held Data I/O (DAIO) as of Q1 2026, up from 27 in Q4 2025.
- Funds reported $7.22M of Data I/O stock for Q1 2026, down 14% quarter-over-quarter.
- 7 funds opened new Data I/O positions in Q1 2026 and 4 closed out, a net change of +3 holders.
- The largest Data I/O buyer in Q1 2026 was LPL Financial, an estimated $65.6K added.
- The largest Data I/O seller in Q1 2026 was Dimensional Fund Advisors, an estimated $115K sold.
Based on aggregated 13F filings for Q1 2026.