ON Semiconductor (ON) vs United Microelectronics (NEW) (UMC)
Head-to-head comparison of performance, valuation, growth, profitability and dividends. Prices delayed 15 minutes; data as of Oct 8, 2026.
Summary
United Microelectronics (NEW) (UMC) has outperformed ON Semiconductor (ON) over the past year, gaining 219.8% versus a gain of 71.3%. Over five years, UMC leads with a +124.4% price change compared with +90.4% for ON. United Microelectronics (NEW) is the larger company by market cap ($58.46 billion vs $32.12 billion), about 1.8 times the size.
On valuation, ON Semiconductor trades at a lower forward P/E (18.2x vs 26.5x for United Microelectronics (NEW)). United Microelectronics (NEW) pays a dividend yielding 11.15%, while ON Semiconductor does not currently pay one. United Microelectronics (NEW) converts more of its revenue into profit, with a net margin of 21.0% versus 2.0%.
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 | ON | UMC |
|---|---|---|
| Share price | $82.51 | $23.31 |
| Market cap | $32.12B | $58.46B |
| 1-day change | -4.40% | +0.52% |
| YTD return | +52.37% | +196.56% |
| 1-year return | +71.29% | +219.75% |
| 5-year return | +90.42% | +124.35% |
| P/E ratio (TTM) | 53.23 | 21.99 |
| Forward P/E | 18.22 | 26.54 |
| EPS (TTM) | $1.55 | $1.06 |
| Dividend yield | 0.00% | 11.15% |
| Annual dividend | $0.00 | $2.60 |
| Revenue (latest FY) | $6.00B | $7.08B |
| Revenue growth (YoY) | -15.35% | -2.52% |
| Net income (latest FY) | $121.00M | $1.49B |
| Gross margin | 33.09% | 32.57% |
| Operating margin | 1.40% | 22.22% |
| Net margin | 2.02% | 21.00% |
| 52-week high | $134.92 | $28.96 |
| 52-week low | $44.56 | $6.97 |
| Distance from 52-week high | -38.85% | -19.51% |
| Analyst consensus | buy | underperform |
| Avg. price target upside | +26.60% | -42.51% |
| Average volume | 9.97M | 13.11M |
| Shares outstanding | 389.32M | 2.51B |
| Employees | 22,600 | 20,000 |
| 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
- UMC has outperformed ON by 148.5 percentage points over the past year.
- ON Semiconductor trades at a higher earnings multiple (53.2x vs 22.0x trailing P/E).
- United Microelectronics (NEW) offers a meaningfully higher dividend yield (11.15% vs 0.00%).
- United Microelectronics (NEW) is more profitable, keeping 21.0 cents of every revenue dollar as net income versus 2.0 cents for ON Semiconductor.
- United Microelectronics (NEW) grew revenue faster in its latest fiscal year (-2.52% vs -15.35%).
About ON Semiconductor
ON stock →ON Semiconductor Corporation provides intelligent sensing and power solutions in Hong Kong, Singapore, the United Kingdom, the United States, and internationally. It operates through three segments: Power Solutions Group, Analog and Mixed-Signal Group, and Intelligent Sensing Group.
Technology · Semiconductors · 22,600 employees
About United Microelectronics (NEW)
UMC stock →United Microelectronics Corporation operates as a semiconductor wafer foundry in Taiwan, China, Hong Kong, Japan, Korea, the United States, Europe, and internationally. It manufactures and sells integrated circuits.
Technology · Semiconductors · 20,000 employees
ON vs UMC FAQ
Which is bigger, ON Semiconductor or United Microelectronics (NEW)?
United Microelectronics (NEW) (UMC) is larger, with a market capitalization of $58.46B compared with $32.12B for ON Semiconductor (ON).
Which stock has performed better over the past year, ON or UMC?
UMC returned +219.75% over the past 12 months, compared with +71.29% for ON (price return, excluding dividends). Past performance does not predict future results.
Which has the lower P/E ratio, ON or UMC?
UMC has the lower trailing P/E at 22.0, versus 53.2 for ON. A lower P/E is not by itself a sign of a better investment; it can reflect slower expected growth or higher risk.
Which pays a higher dividend, ON Semiconductor or United Microelectronics (NEW)?
United Microelectronics (NEW) pays a dividend yielding 11.15%, while ON Semiconductor does not currently pay a regular dividend.
Are ON Semiconductor and United Microelectronics (NEW) in the same industry?
Yes. Both are classified in the Semiconductors industry within the Technology sector.