Aehr Test Systems (AEHR) vs Cohu (COHU)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 9, 2026.
Summary
Cohu (COHU) has outperformed Aehr Test Systems (AEHR) over the past year, gaining 243.7% versus a gain of 237.4%. Over five years, AEHR leads with a +312.3% price change compared with +122.8% for COHU. Cohu is the larger company by market cap ($3.27 billion vs $2.77 billion), about 1.2 times the size.
On valuation, Cohu trades at a lower forward P/E (37.4x vs 61.3x for Aehr Test Systems). Aehr Test Systems converts more of its revenue into profit, with a net margin of -14.3% versus -16.4%.
Summary generated from market data by MetaCap's automated system. Methodology
Relative performance
Percent change in share price from the first common trading day shown; excludes dividends.
Head-to-head
| Metric | AEHR | COHU |
|---|---|---|
| Share price | $84.78 | $69.04 |
| Market cap | $2.77B | $3.27B |
| 1-day change | -2.79% | +0.98% |
| YTD return | +331.95% | +193.81% |
| 1-year return | +237.37% | +243.74% |
| 5-year return | +312.34% | +122.78% |
| Forward P/E | 61.28 | 37.39 |
| EPS (TTM) | $-0.23 | $-0.83 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| Revenue (latest FY) | $50.00M | $452.96M |
| Revenue growth (YoY) | -15.21% | +12.74% |
| Net income (latest FY) | $-7.13M | $-74.27M |
| Gross margin | 35.30% | 42.75% |
| Operating margin | -28.30% | -15.40% |
| Net margin | -14.25% | -16.40% |
| 52-week high | $147.40 | $75.72 |
| 52-week low | $18.70 | $19.82 |
| Distance from 52-week high | -42.49% | -8.82% |
| Analyst consensus | none | strong_buy |
| Avg. price target upside | +50.99% | +2.67% |
| Average volume | 2.87M | 1.02M |
| Shares outstanding | 32.66M | 47.34M |
| Employees | 138 | 2,777 |
| Sector | Industrials | Industrials |
| Industry | Electrical Products | Electrical Products |
Highlighted cells mark the higher value for growth, returns, margins and yield, and the lower value for P/E ratios. Highlighting is a mechanical comparison, not a recommendation.
Key differences
- Cohu grew revenue faster in its latest fiscal year (+12.74% vs -15.21%).
About Aehr Test Systems
AEHR stock →Aehr Test Systems, Inc. provides test solutions for testing, burn-in, and semiconductor devices at wafer level, singulated die, and package level in the United States, Asia, Europe, and the Middle East.
Industrials · Electrical Products · 138 employees
About Cohu
COHU stock →Cohu, Inc., through its subsidiaries, provides semiconductor test equipment and services in the United States, Taiwan, China, Malaysia, the Philippines, Singapore, and internationally. It supplies test and inspection metrology automation systems, micro-electromechanical system test modules, test contactors, thermal subsystems, and data analytics software for semiconductor manufacturers and test subcontractors.
Industrials · Electrical Products · 2,777 employees
AEHR vs COHU FAQ
Which is bigger, Aehr Test Systems or Cohu?
Cohu (COHU) is larger, with a market capitalization of $3.27B compared with $2.77B for Aehr Test Systems (AEHR).
Which stock has performed better over the past year, AEHR or COHU?
COHU returned +243.74% over the past 12 months, compared with +237.37% for AEHR (price return, excluding dividends). Past performance does not predict future results.
Are Aehr Test Systems and Cohu in the same industry?
Yes. Both are classified in the Electrical Products industry within the Industrials sector.