ACM Research (ACMR) vs Mirion Technologies (MIR)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 9, 2026.
Summary
ACM Research (ACMR) has outperformed Mirion Technologies (MIR) over the past year, gaining 68.6% versus a loss of 32.1%. Over five years, ACMR leads with a +101.7% price change compared with +62.4% for MIR. ACM Research is the larger company by market cap ($4.94 billion vs $4.17 billion), about 1.2 times the size.
On valuation, ACM Research trades at a lower forward P/E (24.1x vs 24.8x for Mirion Technologies). ACM Research converts more of its revenue into profit, with a net margin of 10.4% 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 | ACMR | MIR |
|---|---|---|
| Share price | $70.90 | $16.73 |
| Market cap | $4.94B | $4.17B |
| 1-day change | +0.14% | +3.11% |
| YTD return | +79.47% | -30.74% |
| 1-year return | +68.61% | -32.08% |
| 5-year return | +101.67% | +62.36% |
| P/E ratio (TTM) | 33.44 | 185.83 |
| Forward P/E | 24.11 | 24.80 |
| EPS (TTM) | $2.12 | $0.09 |
| Dividend yield | 0.00% | 0.00% |
| Annual dividend | $0.00 | $0.00 |
| Revenue (latest FY) | $901.31M | $925.40M |
| Revenue growth (YoY) | +15.24% | +7.50% |
| Net income (latest FY) | $94.08M | $28.80M |
| Gross margin | 44.39% | 47.40% |
| Operating margin | 12.14% | 5.57% |
| Net margin | 10.44% | 3.11% |
| 52-week high | $127.19 | $30.28 |
| 52-week low | $28.46 | $14.04 |
| Distance from 52-week high | -44.26% | -44.76% |
| Analyst consensus | strong_buy | strong_buy |
| Avg. price target upside | +62.67% | +43.50% |
| Average volume | 1.06M | 3.94M |
| Shares outstanding | 64.66M | 243.28M |
| Employees | 2,513 | 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
- ACMR has outperformed MIR by 100.7 percentage points over the past year.
- Mirion Technologies trades at a higher earnings multiple (185.8x vs 33.4x trailing P/E).
- ACM Research is more profitable, keeping 10.4 cents of every revenue dollar as net income versus 3.1 cents for Mirion Technologies.
- ACM Research grew revenue faster in its latest fiscal year (+15.24% vs +7.50%).
- The two companies sit in different sectors: ACM Research in Technology and Mirion Technologies in Industrials.
About ACM Research
ACMR stock →ACM Research, Inc., together with its subsidiaries, develops, manufactures, and sells capital equipment in Mainland China and internationally. It also develops, manufactures, and sells a range of packaging tools to wafer assembly and packaging customers.
Technology · Industrial Machinery/Components · 2,513 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
ACMR vs MIR FAQ
Which is bigger, ACM Research or Mirion Technologies?
ACM Research (ACMR) is larger, with a market capitalization of $4.94B compared with $4.17B for Mirion Technologies (MIR).
Which stock has performed better over the past year, ACMR or MIR?
ACMR returned +68.61% over the past 12 months, compared with -32.08% for MIR (price return, excluding dividends). Past performance does not predict future results.
Which has the lower P/E ratio, ACMR or MIR?
ACMR has the lower trailing P/E at 33.4, versus 185.8 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 ACM Research and Mirion Technologies in the same industry?
Yes. Both are classified in the Industrial Machinery/Components industry within the Technology sector.