Axcelis Technologies (ACLS) vs Mirion Technologies (MIR)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 8, 2026.
Summary
Axcelis Technologies (ACLS) has outperformed Mirion Technologies (MIR) over the past year, gaining 65.4% versus a loss of 28.9%. Over five years, ACLS leads with a +180.3% price change compared with +64.7% for MIR. Axcelis Technologies is the larger company by market cap ($4.12 billion vs $4.04 billion), about 1.0 times the size, while Mirion Technologies is growing revenue faster (+7.5% vs -17.6%).
On valuation, Mirion Technologies trades at a lower forward P/E (24.0x vs 25.3x for Axcelis Technologies). Axcelis Technologies converts more of its revenue into profit, with a net margin of 14.3% versus 3.1%.
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 | ACLS | MIR |
|---|---|---|
| Share price | $133.48 | $16.22 |
| Market cap | $4.12B | $4.04B |
| 1-day change | -3.55% | -1.40% |
| YTD return | +72.27% | -29.76% |
| 1-year return | +65.43% | -28.88% |
| 5-year return | +180.33% | +64.66% |
| P/E ratio (TTM) | 44.79 | 180.22 |
| Forward P/E | 25.34 | 24.05 |
| EPS (TTM) | $2.98 | $0.09 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| Revenue (latest FY) | $839.05M | $925.40M |
| Revenue growth (YoY) | -17.57% | +7.50% |
| Net income (latest FY) | $120.24M | $28.80M |
| Gross margin | 44.91% | 47.40% |
| Operating margin | 14.22% | 5.57% |
| Net margin | 14.33% | 3.11% |
| 52-week high | $193.78 | $30.28 |
| 52-week low | $73.60 | $14.04 |
| Distance from 52-week high | -31.12% | -46.43% |
| Analyst consensus | hold | strong_buy |
| Avg. price target upside | +20.62% | +47.97% |
| Average volume | 369.34K | 3.90M |
| Shares outstanding | 30.88M | 243.28M |
| Employees | 1,465 | 3,200 |
| Sector | Technology | Industrials |
| Industry | Industrial Machinery/Components | Industrial Machinery/Components |
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
- ACLS has outperformed MIR by 94.3 percentage points over the past year.
- Mirion Technologies trades at a higher earnings multiple (180.2x vs 44.8x trailing P/E).
- Axcelis Technologies is more profitable, keeping 14.3 cents of every revenue dollar as net income versus 3.1 cents for Mirion Technologies.
- Mirion Technologies grew revenue faster in its latest fiscal year (+7.50% vs -17.57%).
- The two companies sit in different sectors: Axcelis Technologies in Technology and Mirion Technologies in Industrials.
About Axcelis Technologies
ACLS stock →Axcelis Technologies, Inc. designs, manufactures, and services ion implantation and other processing equipment used in the fabrication of semiconductor chips in the United States, Europe, and the Asia Pacific.
Technology · Industrial Machinery/Components · 1,465 employees
About Mirion Technologies
MIR stock →Mirion Technologies, Inc. provides radiation detection, measurement, analysis, and monitoring products and services in North America, Europe, and the Asia Pacific.
Industrials · Industrial Machinery/Components · 3,200 employees
ACLS vs MIR FAQ
Which is bigger, Axcelis Technologies or Mirion Technologies?
Axcelis Technologies (ACLS) is larger, with a market capitalization of $4.12B compared with $4.04B for Mirion Technologies (MIR).
Which stock has performed better over the past year, ACLS or MIR?
ACLS returned +65.43% over the past 12 months, compared with -28.88% for MIR (price return, excluding dividends). Past performance does not predict future results.
Which has the lower P/E ratio, ACLS or MIR?
ACLS has the lower trailing P/E at 44.8, versus 180.2 for MIR. A lower P/E is not by itself a sign of a better investment; it can reflect slower expected growth or higher risk.
Are Axcelis Technologies and Mirion Technologies in the same industry?
Yes. Both are classified in the Industrial Machinery/Components industry within the Technology sector.