Which has the lower trailing P/E, AMKR or ONTO?

AMKR has the lower trailing P/E: AMKR trades at 21.15 and ONTO at 95.70. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, AMKR or ONTO?

Over the past five years, ONTO grew revenue faster — AMKR at a 6.44% CAGR versus ONTO at 11.67%.

Does AMKR or ONTO pay a bigger dividend?

AMKR pays a dividend (0.71% yield), while ONTO has no payments in the available dividend history.

Is AMKR or ONTO more profitable?

ONTO runs the higher net margin — AMKR at 7.45% versus ONTO at 11.84%.

How have AMKR and ONTO total returns compared?

Over the past 10 years, AMKR delivered 18.37% and ONTO delivered 28.37% annualized total return. Past performance doesn't predict future results.

Amkor Technology, Inc. (AMKR) vs Onto Innovation Inc. (ONTO)

A side-by-side comparison of Amkor Technology, Inc. and Onto Innovation Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of September 3, 2026. Differences are shown without an overall score or investment verdict.

AMKR

Amkor Technology, Inc.

$11.66B

$46.93TechnologyDelayed quote: Sep 3, 2026, 4:00 PM EDT

ONTO

Onto Innovation Inc.

$12.56B

$252.43TechnologyDelayed quote: Sep 3, 2026, 3:59 PM EDT

Total return — AMKR vs ONTO

growth of $100 · dividends reinvested · last 10y

AMKR +440.1% (+18.4%/yr)ONTO +1130.9% (+28.5%/yr)ONTO compounded faster over this window

AMKR ONTO

AMKR vs ONTO: by the numbers

•ONTO is the larger company ($12.56B vs $11.66B market cap).
•AMKR trades at the lower trailing earnings multiple (21.15 vs 95.70 P/E), one valuation lens rather than an overall verdict.
•ONTO converts more revenue to profit (11.84% vs 7.45% net margin).
•ONTO grew revenue faster over the past five years (11.67% vs 6.44% CAGR).
•AMKR pays a dividend (0.71% yield), while ONTO has no payments in the available dividend history.

Metrics side by side

Valuation

Metric	AMKR	ONTO
P/E ratio	21.15	95.70
Forward P/E	18.69	51.23
P/S ratio	1.58	11.29
P/B ratio	2.53	6.58
EV / EBITDA	9.64	52.20
FCF yield	4.38%	2.00%

Profitability

Metric	AMKR	ONTO
Gross margin	15.51%	50.36%
Operating margin	8.64%	12.48%
Net margin	7.45%	11.84%
ROE	11.94%	6.90%
ROIC	7.31%	3.42%

Dividends

Metric	AMKR	ONTO
Dividend yield	0.71%	N/A
Payout ratio	22.07%	N/A

Growth (annualized)

Metric	AMKR	ONTO
Revenue CAGR (5Y)	6.44%	11.67%
EPS CAGR (5Y)	1.52%	-0.96%
FCF CAGR (5Y)	-2.52%	15.11%
Total return CAGR (5Y)	11.96%	27.14%

Frequently asked

Which has the lower trailing P/E, AMKR or ONTO?: AMKR has the lower trailing P/E: AMKR trades at 21.15 and ONTO at 95.70. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, AMKR or ONTO?: Over the past five years, ONTO grew revenue faster — AMKR at a 6.44% CAGR versus ONTO at 11.67%.
Does AMKR or ONTO pay a bigger dividend?: AMKR pays a dividend (0.71% yield), while ONTO has no payments in the available dividend history.
Is AMKR or ONTO more profitable?: ONTO runs the higher net margin — AMKR at 7.45% versus ONTO at 11.84%.
How have AMKR and ONTO total returns compared?: Over the past 10 years, AMKR delivered 18.37% and ONTO delivered 28.37% annualized total return. Past performance doesn't predict future results.

Go deeper

Full AMKR analysis Full ONTO analysis Interactive comparison tool

Dig into the metrics

Amkor Technology P/E ratio Onto Innovation P/E ratio Amkor Technology dividend yield Amkor Technology ROE Onto Innovation ROE Amkor Technology operating margin Onto Innovation operating margin Amkor Technology revenue growth Onto Innovation revenue growth Amkor Technology free cash flow Onto Innovation free cash flow

Amkor Technology & Onto Innovation appear in these rankings

Highest FCF Yield Stocks Highest 10-Year Total Return Stocks

Figures are sourced from reported fundamentals and the latest end-of-day price. This comparison is informational only and is not investment advice. Past performance does not predict future results. See our methodology. Compiled by TGMCharts Research · data verified September 3, 2026.