Aehr Test Systems (AEHR) vs OSI Systems, Inc. (OSIS)
A side-by-side comparison of Aehr Test Systems and OSI Systems, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 6, 2026. Differences are shown without an overall score or investment verdict.
AEHR
Aehr Test Systems
$97.80TechnologyDelayed quote: Oct 6, 2026, 11:55 AM EDT
OSIS
OSI Systems, Inc.
$197.37TechnologyDelayed quote: Oct 6, 2026, 11:55 AM EDT
Total return — AEHR vs OSIS
growth of $100 · dividends reinvested · last 10yAEHR +3451.0% (+42.9%/yr)OSIS +206.6% (+11.9%/yr)AEHR compounded faster over this window
Log scale — wide-divergence pair
AEHR OSIS
AEHR vs OSIS: by the numbers
- •OSIS is the larger company ($3.25B vs $3.19B market cap).
- •OSIS is profitable (8.66% net margin) while AEHR runs a net loss (-14.00%).
- •AEHR grew revenue faster over the past five years (30.24% vs 9.26% CAGR).
Metrics side by side
Valuation
| Metric | AEHR | OSIS |
|---|---|---|
| P/E ratio | N/A | 22.05 |
| Forward P/E | 129.02 | 17.36 |
| PEG ratio | N/A | 1.27 |
| P/S ratio | 62.65 | 1.82 |
| P/B ratio | 14.53 | 3.91 |
Profitability
| Metric | AEHR | OSIS |
|---|---|---|
| Gross margin | 34.67% | 33.21% |
| Operating margin | -27.80% | 12.26% |
| Net margin | -14.00% | 8.66% |
| ROE | -3.25% | 18.57% |
| ROIC | -6.17% | 8.82% |
Growth (annualized)
| Metric | AEHR | OSIS |
|---|---|---|
| Revenue CAGR (5Y) | 30.24% | 9.26% |
| EPS CAGR (5Y) | N/A | 16.79% |
| FCF CAGR (5Y) | N/A | 17.50% |
| Total return CAGR (5Y) | 50.07% | 15.63% |
Frequently asked
- Which has grown faster, AEHR or OSIS?
- Over the past five years, AEHR grew revenue faster — AEHR at a 30.24% CAGR versus OSIS at 9.26%.
- Is AEHR or OSIS more profitable?
- OSIS runs the higher net margin — AEHR at -14.00% versus OSIS at 8.66%.
- How have AEHR and OSIS total returns compared?
- Over the past 10 years, AEHR delivered 42.91% and OSIS delivered 11.40% annualized total return. Past performance doesn't predict future results.
Go deeper
Dig into the metrics
OSI Systems P/E ratioAehr Test Systems ROEOSI Systems ROEAehr Test Systems operating marginOSI Systems operating marginAehr Test Systems revenue growthOSI Systems revenue growthAehr Test Systems free cash flowOSI Systems free cash flow
Aehr Test Systems & OSI Systems appear in these rankings
Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified October 6, 2026.