AMKR vs ONTO
Amkor Technology, Inc. and Onto Innovation Inc., both Technology
Amkor Technology, Inc. is the larger company at $22B against $17B. On trailing earnings AMKR is the cheaper of the two at a P/E of 27.7 against 136.3, a gap that is only a bargain if the two are growing at similar rates. Over the past year ONTO returned +215% against +114% for AMKR. Ryufin's sector-relative Smart Score puts AMKR ahead, 6/10 against 5/10.
| Figure | AMKR | ONTO |
|---|---|---|
| Last close | $48.41 | $292 |
| Market cap | $22B | $17B |
| Trailing P/Elower is cheaper for the same earnings, not automatically better | 27.7 | 136.3 |
| Dividend yield | 0.7% | n/a |
| 1-year return | +114% | +215% |
| 5-year return | +105% | +314% |
| Ryufin Smart Scoresector-relative, 1–10 | 6/10 | 5/10 |
Figures from SEC filings and end-of-day closes. Highlighting marks the higher or lower number, which is not the same as the better investment, a low P/E can be a warning and a high one can be deserved.
Amkor Technology, Inc.
Revenue of $1.7B in Q1 2026, net income $83M. Its largest reported line is Advanced Products, 81% of the disclosed total.
Onto Innovation Inc.
Revenue of $292M in Q1 2026, net income $34M. Its largest reported line is TW, 29% of the disclosed total.
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