ChipMOS TECHNOLOGIES INC. (IMOS) vs Ultra Clean (UCTT)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 9, 2026.
Summary
ChipMOS TECHNOLOGIES INC. (IMOS) has outperformed Ultra Clean (UCTT) over the past year, gaining 274.5% versus a gain of 138.1%. Over five years, IMOS leads with a +133.8% price change compared with +51.5% for UCTT. Ultra Clean is the larger company by market cap ($3.05 billion vs $2.69 billion), about 1.1 times the size, while ChipMOS TECHNOLOGIES INC. is growing revenue faster (-0.8% vs -2.1%).
On valuation, Ultra Clean trades at a lower forward P/E (10.8x vs 76.5x for ChipMOS TECHNOLOGIES INC.). ChipMOS TECHNOLOGIES INC. pays a dividend yielding 1.59%, while Ultra Clean does not currently pay one. ChipMOS TECHNOLOGIES INC. converts more of its revenue into profit, with a net margin of 6.3% versus -8.8%.
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 | IMOS | UCTT |
|---|---|---|
| Share price | $77.29 | $67.32 |
| Market cap | $2.69B | $3.05B |
| 1-day change | +2.36% | -0.39% |
| YTD return | +154.81% | +166.80% |
| 1-year return | +274.50% | +138.13% |
| 5-year return | +133.82% | +51.49% |
| P/E ratio (TTM) | 36.63 | — |
| Forward P/E | 76.52 | 10.78 |
| EPS (TTM) | $2.11 | $-0.51 |
| Dividend yield | 1.59% | 0.00% |
| Annual dividend | $1.23 | $0.00 |
| Revenue (latest FY) | $692.16M | $2.05B |
| Revenue growth (YoY) | -0.76% | -2.08% |
| Net income (latest FY) | $43.90M | $-181.20M |
| Gross margin | 12.97% | 15.72% |
| Operating margin | 5.61% | -5.23% |
| Net margin | 6.34% | -8.82% |
| 52-week high | $83.84 | $144.22 |
| 52-week low | $19.24 | $21.49 |
| Distance from 52-week high | -7.81% | -53.32% |
| Analyst consensus | — | strong_buy |
| Avg. price target upside | — | +99.06% |
| Average volume | 105.59K | 1.12M |
| Shares outstanding | 34.77M | 45.28M |
| Employees | — | 6,948 |
| Sector | Technology | Technology |
| Industry | Semiconductors | Semiconductors |
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
- IMOS has outperformed UCTT by 136.4 percentage points over the past year.
- ChipMOS TECHNOLOGIES INC. offers a meaningfully higher dividend yield (1.59% vs 0.00%).
- ChipMOS TECHNOLOGIES INC. is more profitable, keeping 6.3 cents of every revenue dollar as net income versus -8.8 cents for Ultra Clean.
About ChipMOS TECHNOLOGIES INC.
IMOS stock →ChipMOS TECHNOLOGIES INC. engages in the research and development, manufacture, and sale of integrated circuits, and related assembly and testing services in Taiwan, Japan, the People's Republic of China, and internationally.
Technology · Semiconductors
About Ultra Clean
UCTT stock →Ultra Clean Holdings, Inc. develops and supplies critical subsystems, components and parts, and cleaning and analytical services for the semiconductor industry in the United States and internationally.
Technology · Semiconductors · 6,948 employees
IMOS vs UCTT FAQ
Which is bigger, ChipMOS TECHNOLOGIES INC. or Ultra Clean?
Ultra Clean (UCTT) is larger, with a market capitalization of $3.05B compared with $2.69B for ChipMOS TECHNOLOGIES INC. (IMOS).
Which stock has performed better over the past year, IMOS or UCTT?
IMOS returned +274.50% over the past 12 months, compared with +138.13% for UCTT (price return, excluding dividends). Past performance does not predict future results.
Which pays a higher dividend, ChipMOS TECHNOLOGIES INC. or Ultra Clean?
ChipMOS TECHNOLOGIES INC. pays a dividend yielding 1.59%, while Ultra Clean does not currently pay a regular dividend.
Are ChipMOS TECHNOLOGIES INC. and Ultra Clean in the same industry?
Yes. Both are classified in the Semiconductors industry within the Technology sector.