MARVELL TECHNOLOGY, INC vs United Microelectronics Corporation, two Semiconductors stocks. A side-by-side on valuation, growth, margins, returns, and what each price is betting.
Neither price reads off the trailing year: Marvell at 91.4 times earnings is priced for AI silicon design wins to rebuild its income statement upward, UMC at a headline 213.2 times because a foundry-trough has hollowed the denominator, with a 0.05% free-cash yield alongside. The identical-looking multiples could not mean more different things. Marvell's 52.2% gross margin is a designer's; UMC's 32.3% is a commodity manufacturer's. Both balance sheets are light, 0.27 and zero debt to equity. One triple-digit multiple is ambition and the other is arithmetic, and a reader who prices them the same way will misread both pages.
Comparison updated 2026-07-10.
| Metric | MRVL | UMC |
|---|---|---|
| Price | $265.84 | $25.58 |
| Market cap | $237.5B | $311.4B |
| Sector | Semiconductors | Semiconductors |
| Stage | Growth | Growth |
| P/E | 91.3 | 213.2 |
| P/B | 13.04 | 27.92 |
| P/S | 27.24 | 43.56 |
| EV/EBITDA | 171.4 | 195.8 |
| Revenue growth | +36.0% | +8.9% |
| Gross margin | 52.1% | 32.3% |
| Operating margin | 14.0% | 22.0% |
| Net margin | 6.9% | 20.8% |
| Return on equity | 3.3% | 13.3% |
| Return on assets | 2.2% | 8.7% |
| Return on invested capital | 4.7% | 12.0% |
| FCF yield | 0.7% | 0.1% |
| Dividend yield | 0.1% | — |
| Debt / equity | 0.27 | 0.00 |
| Current ratio | 3.28 | 2.45 |
| Altman Z (solvency) | 6.67 | 6.96 |
| Piotroski F (quality) | 6 / 9 | 6 / 9 |
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The stronger value is highlighted per metric where one is strictly better on that single number; it is not an overall verdict on either company. For informational and research purposes only. Not investment advice. Not a recommendation to buy, sell, or hold any security. boothcheck is not a registered investment adviser. Past performance does not guarantee future results.