Funds holding Data I/O Corp
ISIN US2376901029 · United States
- Fund holders
- 19
- Of which ETFs
- 4 15 other funds
- Value held
- 2.1M $
- Share of capital
- 8.0 % of 10.4M shares on Jul 31, 2026
| Fund | Shares | Value | Weight in fund | Share of capital | |
|---|---|---|---|---|---|
| Philotimo Focused Growth & Income World Funds Trust | 327,401 | 828.3K $ | 0.74 % | 3.15 % | as of Mar 31, 2026 ↗ |
| VANGUARD TOTAL STOCK MARKET INDEX FUND VANGUARD INDEX FUNDS | 208,781 | 528.2K $ | 2.01 % | as of Mar 31, 2026 ↗ | |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 90,616 | 229.3K $ | 0.00 % | 0.87 % | as of Mar 31, 2026 ↗ |
| U.S. MICRO CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 46,137 | 125K $ | 0.00 % | 0.44 % | as of Apr 30, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 44,390 | 123K $ | 0.00 % | 0.43 % | as of Feb 28, 2026 ↗ |
| U.S. SMALL CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 31,665 | 85.8K $ | 0.00 % | 0.30 % | as of Apr 30, 2026 ↗ |
| Fidelity Total Market Index Fund Fidelity Concord Street Trust | 19,731 | 54.7K $ | 0.19 % | as of Feb 28, 2026 ↗ | |
| Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 15,054 | 41.7K $ | 0.00 % | 0.14 % | as of Feb 28, 2026 ↗ |
| Fidelity Series Total Market Index Fund Fidelity Concord Street Trust | 11,134 | 30.8K $ | 0.11 % | as of Feb 28, 2026 ↗ | |
| LVIP Dimensional U.S. Core Equity 2 Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 7,146 | 18.1K $ | 0.00 % | 0.07 % | as of Mar 31, 2026 ↗ |
| U.S. Sustainability Core 1 Portfolio DFA INVESTMENT DIMENSIONS GROUP INC | 4,622 | 12.5K $ | 0.00 % | 0.04 % | as of Apr 30, 2026 ↗ |
| U.S. CORE EQUITY 2 PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 4,203 | 11.4K $ | 0.04 % | as of Apr 30, 2026 ↗ | |
| Dimensional US Core Equity 1 ETF Dimensional ETF Trust | 3,526 | 9.6K $ | 0.00 % | 0.03 % | as of Apr 30, 2026 ↗ |
| Dimensional U.S. Equity Market ETF Dimensional ETF Trust | 3,489 | 9.5K $ | 0.03 % | as of Apr 30, 2026 ↗ | |
| Dimensional US Sustainability Core 1 ETF Dimensional ETF Trust | 3,442 | 9.3K $ | 0.00 % | 0.03 % | as of Apr 30, 2026 ↗ |
| U.S. Social Core Equity 2 Portfolio DFA INVESTMENT DIMENSIONS GROUP INC | 1,818 | 4.9K $ | 0.00 % | 0.02 % | as of Apr 30, 2026 ↗ |
| U.S. VECTOR EQUITY PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 1,500 | 4.1K $ | 0.00 % | 0.01 % | as of Apr 30, 2026 ↗ |
| U.S. CORE EQUITY 1 PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 1,413 | 3.8K $ | 0.01 % | as of Apr 30, 2026 ↗ | |
| Dimensional U.S. Core Equity 2 ETF Dimensional ETF Trust | 1,148 | 3.1K $ | 0.01 % | as of Apr 30, 2026 ↗ |
The funds most exposed to it
The weight is the share of a fund's net assets. The holders table counts shares; this one measures what the company weighs inside each fund.
| Fund | Weight in fund | |
|---|---|---|
| Philotimo Focused Growth & Income World Funds Trust | 0.74 % | as of Mar 31, 2026 ↗ |
| LVIP Dimensional U.S. Core Equity 2 Fund LINCOLN VARIABLE INSURANCE PRODUCTS TRUST | 0.00 % | as of Mar 31, 2026 ↗ |
| U.S. MICRO CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 0.00 % | as of Apr 30, 2026 ↗ |
| Dimensional US Sustainability Core 1 ETF Dimensional ETF Trust | 0.00 % | as of Apr 30, 2026 ↗ |
| U.S. SMALL CAP PORTFOLIO DFA INVESTMENT DIMENSIONS GROUP INC | 0.00 % | as of Apr 30, 2026 ↗ |
| Dimensional US Core Equity 1 ETF Dimensional ETF Trust | 0.00 % | as of Apr 30, 2026 ↗ |
| Fidelity Extended Market Index Fund Fidelity Concord Street Trust | 0.00 % | as of Feb 28, 2026 ↗ |
| VANGUARD EXTENDED MARKET INDEX FUND VANGUARD INDEX FUNDS | 0.00 % | as of Mar 31, 2026 ↗ |
| Fidelity Nasdaq Composite Index Fund Fidelity Concord Street Trust | 0.00 % | as of Feb 28, 2026 ↗ |
| U.S. Social Core Equity 2 Portfolio DFA INVESTMENT DIMENSIONS GROUP INC | 0.00 % | as of Apr 30, 2026 ↗ |
Quarter after quarter
Each SEC quarterly data set, newest first. The change is read against the quarter before it.
| Quarter | Holders | Change | Shares | Change |
|---|---|---|---|---|
| 2026Q2 | 19 | -2 | 827,216 | -2.2 % |
| 2026Q1 | 21 | -2 | 846,130 | -9.2 % |
| 2025Q4 | 23 | +1 | 932,098 | -7.8 % |
| 2025Q3 | 22 | +2 | 1,010,806 | +0.7 % |
| 2025Q2 | 20 | 0 | 1,003,429 | -0.2 % |
| 2025Q1 | 20 | +3 | 1,005,801 | +2.9 % |
| 2024Q4 | 17 | -5 | 977,636 | -6.3 % |
| 2024Q3 | 22 | -2 | 1,043,187 | -0.5 % |
| 2024Q2 | 24 | -4 | 1,048,942 | +1.9 % |
| 2024Q1 | 28 | 0 | 1,029,697 | +2.0 % |
| 2023Q4 | 28 | 1,009,549 |
Institutional managers
25 managers declare this company to the SEC (Form 13F).
| Manager | Shares | Value | |
|---|---|---|---|
| Kanen Wealth Management LLC | 839,421 | 2.1M $ | as of Mar 31, 2026 |
| RENAISSANCE TECHNOLOGIES LLC | 407,643 | 1M $ | as of Mar 31, 2026 |
| Penbrook Management LLC | 356,850 | 902.8K $ | as of Mar 31, 2026 |
| Kovack Advisors, Inc. | 267,981 | 635.1K $ | as of Mar 31, 2026 |
| DIMENSIONAL FUND ADVISORS LP | 140,679 | 355.9K $ | as of Mar 31, 2026 |
| ACADIAN ASSET MANAGEMENT LLC | 124,119 | 313 $ | as of Mar 31, 2026 |
| GEODE CAPITAL MANAGEMENT, LLC | 86,867 | 219.8K $ | as of Mar 31, 2026 |
| ESSEX INVESTMENT MANAGEMENT CO LLC | 74,641 | 188.8K $ | as of Mar 31, 2026 |
| Steward Partners Investment Advisory, LLC | 43,472 | 110K $ | as of Mar 31, 2026 |
| SUSQUEHANNA INTERNATIONAL GROUP, LLP | 26,837 | 67.9K $ | as of Mar 31, 2026 |
| LPL Financial LLC | 22,545 | 57K $ | as of Mar 31, 2026 |
| JAMES INVESTMENT RESEARCH, INC. | 22,402 | 56.7K $ | as of Mar 31, 2026 |
| NewEdge Advisors, LLC | 22,402 | 22.4K $ | as of Mar 31, 2026 |
| Legato Capital Management LLC | 17,550 | 44.4K $ | as of Mar 31, 2026 |
| BlackRock, Inc. | 17,015 | 43K $ | as of Mar 31, 2026 |
| STATE STREET CORP | 16,170 | 40.9K $ | as of Mar 31, 2026 |
| GOLDMAN SACHS GROUP INC | 13,788 | 34.9K $ | as of Mar 31, 2026 |
| NORTHERN TRUST CORP | 13,476 | 34.1K $ | as of Mar 31, 2026 |
| SIMPLEX TRADING, LLC | 2,759 | 7K $ | as of Mar 31, 2026 |
| Tower Research Capital LLC (TRC) | 1,681 | 4.3K $ | as of Mar 31, 2026 |
| UBS Group AG | 941 | 2.4K $ | as of Mar 31, 2026 |
| GROUP ONE TRADING LLC | 100 | 253 $ | as of Mar 31, 2026 |
| BARD ASSOCIATES INC | 100 | 253 $ | as of Mar 31, 2026 |
| HUNTINGTON NATIONAL BANK | 1 | 3 $ | as of Mar 31, 2026 |
| SBI Securities Co., Ltd. | 1 | 3 $ | as of Mar 31, 2026 |
Declared shareholders of Data I/O Corp
1 beneficial ownership filing. These stakes do not add up: an asset manager filing aggregates its own funds, already counted above.
| Shareholder | Declared stake | Shares | |
|---|---|---|---|
| LYTTON LAURENCE W and 2 others | 9.90 % | 1,026,424 | as of Jun 17, 2026 · SCHEDULE 13G |
Cite this page
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