Data I/O Corp
DAIO- Exchange
- Nasdaq
- Industry
- Instruments For Meas & Testing of Electricity & Elec Signals
- SEC CIK
- 0000351998
No open-market purchases or sales by Data I/O Corp insiders were filed in the last 90 days; 35 institutions reported holding it in 13F filings for Q2 2026, worth $12.2M in total; no superinvestor holds it.
13F holders, Q2 2026
Institutional positions in Data I/O Corp as of Jun 30, 2026. Investment managers with $100 million or more in US stocks report their long positions on Form 13F within 45 days after each quarter ends. How 13F works
- Institutional holders
- 35
- +6 vs. Q1 2026
- Shares held
- 3.11M
- +237.6K (+8.3%) vs. Q1 2026
- Total value
- $12.2M
- +$4.99M (+69.1%) vs. Q1 2026
- New holders
- 9
- 9 more added
- Sold out
- 3
- 6 more reduced
Compare with Q1 2026: new holders, sold out and not filed yet
Holders and value by quarter
Institutions reporting DAIO on Form 13F each quarter since Q1 2021, and the total value they reported. Values are as of each quarter end, so they also move with the share price.
| Quarter | Holders | Value |
|---|---|---|
| Q2 2026 | 35 | $12.2M |
| Q1 2026 | 29 | $7.22M |
| Q4 2025 | 27 | $8.44M |
| Q3 2025 | 26 | $10.7M |
| Q2 2025 | 26 | $9.93M |
| Q1 2025 | 26 | $7.51M |
| Q4 2024 | 29 | $8.69M |
| Q3 2024 | 29 | $8.14M |
| Q2 2024 | 32 | $9.06M |
| Q1 2024 | 32 | $11.8M |
| Q4 2023 | 30 | $8.39M |
| Q3 2023 | 29 | $12.8M |
| Q2 2023 | 29 | $14.4M |
| Q1 2023 | 30 | $16.2M |
| Q4 2022 | 30 | $11.1M |
| Q3 2022 | 28 | $8.94M |
| Q2 2022 | 28 | $10.3M |
| Q1 2022 | 29 | $14.0M |
| Q4 2021 | 29 | $14.8M |
| Q3 2021 | 32 | $23.4M |
| Q2 2021 | 30 | $24.7M |
| Q1 2021 | 30 | $18.6M |
Institutions, Q2 2026
Shares, value and share of portfolio for each institution holding Data I/O Corp; share changes are against Q1 2026.
| Institution | Shares | Value | % of portfolio | Change in shares | Action |
|---|---|---|---|---|---|
| Huntington National Bank | 1 | $4 | 0.00% | 00.0% | Unchanged |
| SBI Securities Co., Ltd. | 1 | $4 | 0.00% | 00.0% | Unchanged |
| Caitong International Asset Management Co., Ltd | 4 | $16 | 0.00% | +4 | New |
| Barclays PLC | 50 | $197 | 0.00% | +50 | New |
| Tower Research Capital LLC (TRC) | 314 | $1.24K | 0.00% | −1,367−81.3% | Reduced |
| Point Nemo Capital, LLC | 500 | $1.97K | 0.00% | +500 | New |
| UBS Group AG | 4,222 | $16.6K | 0.00% | +3,281+348.7% | Added |
| Simplex Trading, LLC | 4,279 | $16.9K | 0.00% | +1,520+55.1% | Added |
| Vanguard Global Advisers, LLC | 5,124 | $20.2K | 0.00% | 00.0% | Unchanged |
| Group One Trading, L.P. | 6,450 | $25.4K | 0.00% | +6,350+6,350.0% | Added |
| Citigroup Inc | 7,176 | $28.3K | 0.00% | +7,176 | New |
| HRT Financial LP | 11,288 | $44.0K | 0.00% | +11,288 | New |
| XTX Topco Ltd | 15,284 | $60.2K | 0.00% | +15,284 | New |
| State Street Corp | 16,170 | $63.7K | 0.00% | 00.0% | Unchanged |
| BlackRock, Inc. | 17,015 | $67.0K | 0.00% | 00.0% | Unchanged |
| Legato Capital Management LLC | 17,550 | $69.1K | 0.01% | 00.0% | Unchanged |
| Jane Street Group, LLC | 17,727 | $69.8K | 0.00% | +17,727 | New |
| LPL Financial LLC | 21,000 | $82.7K | 0.00% | −1,545−6.9% | Reduced |
| Northern Trust Corp | 21,827 | $86.0K | 0.00% | +8,351+62.0% | Added |
| James Investment Research Inc | 22,402 | $88.3K | 0.01% | 00.0% | Unchanged |
| GWM Advisors LLC | 22,402 | $88.3K | 0.00% | 00.0% | Unchanged |
| Thompson Davis & Co., Inc. | 23,533 | $92.7K | 0.06% | +23,533 | New |
| Steward Partners Investment Advisory, LLC | 43,472 | $171.3K | 0.00% | 00.0% | Unchanged |
| Susquehanna International Group, LLP | 48,548 | $191.3K | 0.00% | +21,711+80.9% | Added |
| Vanguard Fiduciary Trust Co | 58,643 | $231.1K | 0.00% | +12,790+27.9% | Added |
| Essex Investment Management Co LLC | 74,558 | $293.8K | 0.04% | −83−0.1% | Reduced |
| Citadel Advisors LLC | 86,869 | $342.3K | 0.00% | +86,869 | New |
| Acadian Asset Management LLC | 108,582 | $427.0K | 0.00% | −15,537−12.5% | Reduced |
| Geode Capital Management, LLC | 115,057 | $453.4K | 0.00% | +28,190+32.5% | Added |
| Dimensional Fund Advisors LP | 140,679 | $554.3K | 0.00% | 00.0% | Unchanged |
| Kovack Advisors, Inc. | 285,481 | $1.11M | 0.05% | +17,500+6.5% | Added |
| Vanguard Capital Management LLC | 323,672 | $1.28M | 0.00% | +24,275+8.1% | Added |
| Penbrook Management LLC | 355,850 | $1.40M | 0.89% | −1,000−0.3% | Reduced |
| Renaissance Technologies LLC | 392,443 | $1.55M | 0.00% | −15,200−3.7% | Reduced |
| Kanen Wealth Management LLC | 839,421 | $3.29M | 0.80% | 00.0% | Unchanged |
| Goldman Sachs Group Inc | 0 | $0 | 0.00% | −13,788−100.0% | Sold out |
| Bard Associates Inc | 0 | $0 | 0.00% | −100−100.0% | Sold out |
| Royal Bank of Canada | 0 | $0 | 0.00% | −136−100.0% | Sold out |