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Aehr Test Systems vs Data I/O: AEHR and DAIO compared
Aehr Test Systems is the larger company: $33.0M of revenue in its latest quarter (Q3 2026) against $5.1M for Data I/O (Q2 FY26). Aehr Test Systems is more profitable, with an operating margin of 18.3% against -14.1%.
Where the money goes: AEHR and DAIO
Aehr Test Systems (AEHR) · Q3 2026
Aehr Test Systems, Q3 2026: revenue $33.0M, operating margin 18.3%, net earnings $7.2M, operating cash flow −$3.1M. The chart follows the revenue to costs, profit and cash.
Data I/O (DAIO) · Q2 FY26
Data I/O, Q2 FY26: revenue $5.1M (-13% year over year), operating margin -14.1%, net loss $1.6M, operating cash flow −$2.9M. The chart follows the revenue to costs, profit and cash.
| Aehr Test Systems (AEHR) | Data I/O (DAIO) | |
|---|---|---|
| Latest quarter | Q3 2026 | Q2 FY26 |
| Revenue | $33.0M | $5.1M |
| Revenue growth, Y/Y | — | -13% |
| Gross margin | 47.5% | — |
| Operating margin | 18.3% | -14.1% |
| Net earnings | $7.2M | −$1.6M |
| Net margin | 21.8% | -31.6% |
| Operating cash flow | −$3.1M | −$2.9M |
Where the revenue comes from
Aehr Test Systems
- Systems: $17.3M (52%)
- Contactors: $13.5M (41%)
- Services: $2.2M (7%)
Questions
Which is bigger, Aehr Test Systems or Data I/O?
Aehr Test Systems is the larger company: $33.0M of revenue in its latest quarter (Q3 2026) against $5.1M for Data I/O (Q2 FY26).
Is Aehr Test Systems or Data I/O growing faster?
Aehr Test Systems is more profitable, with an operating margin of 18.3% against -14.1%.
More: Aehr Test Systems earnings · how Aehr Test Systems makes money · Data I/O earnings · how Data I/O makes money
From the companies' latest 10-Q, 10-K or earnings release (10-Q filed Nov 6, 2026; 10-Q filed Aug 14, 2026). Fiscal quarters can end on different dates. Not investment advice.