Aehr Test Systems (AEHR) vs Ultra Clean Holdings, Inc. (UCTT)
A side-by-side comparison of Aehr Test Systems and Ultra Clean Holdings, 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
$101.61TechnologyDelayed quote: Oct 6, 2026, 10:40 AM EDT
UCTT
Ultra Clean Holdings, Inc.
$73.01TechnologyDelayed quote: Oct 6, 2026, 10:40 AM EDT
Total return — AEHR vs UCTT
growth of $100 · dividends reinvested · last 10yAEHR +3451.0% (+42.9%/yr)UCTT +951.4% (+26.5%/yr)AEHR compounded faster over this window
AEHR UCTT
AEHR vs UCTT: by the numbers
- •AEHR is the larger company ($3.31B vs $3.27B market cap).
- •Both run net losses; UCTT's is the smaller (-1.07% vs -14.00% net margin).
- •AEHR grew revenue faster over the past five years (30.24% vs 5.67% CAGR).
Metrics side by side
Valuation
| Metric | AEHR | UCTT |
|---|---|---|
| Forward P/E | 134.05 | 23.31 |
| P/S ratio | 65.10 | 1.49 |
| P/B ratio | 15.10 | 5.12 |
| EV / EBITDA | N/A | 27.25 |
Profitability
| Metric | AEHR | UCTT |
|---|---|---|
| Gross margin | 34.67% | 15.83% |
| Operating margin | -27.80% | 2.84% |
| Net margin | -14.00% | -1.07% |
| ROE | -3.25% | -3.66% |
| ROIC | -6.17% | 2.27% |
Growth (annualized)
| Metric | AEHR | UCTT |
|---|---|---|
| Revenue CAGR (5Y) | 30.24% | 5.67% |
| Total return CAGR (5Y) | 50.07% | 11.89% |
Frequently asked
- Which has grown faster, AEHR or UCTT?
- Over the past five years, AEHR grew revenue faster — AEHR at a 30.24% CAGR versus UCTT at 5.67%.
- How have AEHR and UCTT total returns compared?
- Over the past 10 years, AEHR delivered 42.91% and UCTT delivered 25.82% annualized total return. Past performance doesn't predict future results.
Go deeper
Dig into the metrics
Aehr Test Systems ROEUltra Clean ROEAehr Test Systems operating marginUltra Clean operating marginAehr Test Systems revenue growthUltra Clean revenue growthAehr Test Systems free cash flowUltra Clean free cash flow
Aehr Test Systems & Ultra Clean 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.