Aehr Test Systems (AEHR) vs Mercury Systems (MRCY)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 9, 2026.
Summary
Aehr Test Systems (AEHR) has outperformed Mercury Systems (MRCY) over the past year, gaining 237.4% versus a loss of 6.4%. Over five years, AEHR leads with a +312.3% price change compared with +56.8% for MRCY. Mercury Systems is the larger company by market cap ($4.83 billion vs $2.91 billion), about 1.7 times the size.
On valuation, Mercury Systems trades at a lower forward P/E (35.6x vs 64.5x for Aehr Test Systems). Mercury Systems converts more of its revenue into profit, with a net margin of -3.0% versus -14.3%.
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 | MRCY |
|---|---|---|
| Share price | $89.22 | $79.39 |
| Market cap | $2.91B | $4.83B |
| 1-day change | +2.30% | +1.11% |
| YTD return | +331.95% | +7.55% |
| 1-year return | +237.37% | -6.43% |
| 5-year return | +312.34% | +56.76% |
| Forward P/E | 64.50 | 35.60 |
| EPS (TTM) | $-0.23 | $-0.50 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| Revenue (latest FY) | $50.00M | $983.62M |
| Revenue growth (YoY) | -15.21% | +7.85% |
| Net income (latest FY) | $-7.13M | $-29.67M |
| Gross margin | 35.30% | 28.58% |
| Operating margin | -28.30% | 0.03% |
| Net margin | -14.25% | -3.02% |
| 52-week high | $147.40 | $128.45 |
| 52-week low | $18.70 | $65.04 |
| Distance from 52-week high | -39.47% | -38.19% |
| Analyst consensus | none | none |
| Avg. price target upside | +43.47% | +45.74% |
| Average volume | 2.87M | 695.80K |
| Shares outstanding | 32.66M | 60.86M |
| Employees | 138 | 2,102 |
| Sector | Industrials | Technology |
| 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
- AEHR has outperformed MRCY by 243.8 percentage points over the past year.
- Mercury Systems is more profitable, keeping -3.0 cents of every revenue dollar as net income versus -14.3 cents for Aehr Test Systems.
- Mercury Systems grew revenue faster in its latest fiscal year (+7.85% vs -15.21%).
- The two companies sit in different sectors: Aehr Test Systems in Industrials and Mercury Systems in Technology.
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 Mercury Systems
MRCY stock →Mercury Systems, Inc., engages in the aerospace and defense electronics industry. The company manufactures and sells components, products, modules, and subsystems for defense prime contractors, original equipment manufacturers, government, and commercial aerospace companies.
Technology · Electrical Products · 2,102 employees
AEHR vs MRCY FAQ
Which is bigger, Aehr Test Systems or Mercury Systems?
Mercury Systems (MRCY) is larger, with a market capitalization of $4.83B compared with $2.91B for Aehr Test Systems (AEHR).
Which stock has performed better over the past year, AEHR or MRCY?
AEHR returned +237.37% over the past 12 months, compared with -6.43% for MRCY (price return, excluding dividends). Past performance does not predict future results.
Are Aehr Test Systems and Mercury Systems in the same industry?
Yes. Both are classified in the Electrical Products industry within the Industrials sector.