Which has grown faster, AAOI or AMKR?

Over the past five years, AAOI grew revenue faster — AAOI at a 20.68% CAGR versus AMKR at 6.44%.

Does AAOI or AMKR pay a bigger dividend?

AMKR pays a dividend (0.60% yield), while AAOI has no payments in the available dividend history.

Is AAOI or AMKR more profitable?

AMKR runs the higher net margin — AAOI at -9.57% versus AMKR at 7.45%.

How have AAOI and AMKR total returns compared?

Over the past 10 years, AAOI delivered 24.80% and AMKR delivered 21.90% annualized total return. Past performance doesn't predict future results.

Applied Optoelectronics, Inc. (AAOI) vs Amkor Technology, Inc. (AMKR)

A side-by-side comparison of Applied Optoelectronics, Inc. and Amkor Technology, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of August 10, 2026. Differences are shown without an overall score or investment verdict.

AAOI

Applied Optoelectronics, Inc.

$10.36B

$129.11TechnologyDelayed quote: Aug 10, 2026, 11:00 AM EDT

AMKR

Amkor Technology, Inc.

$13.36B

$53.77TechnologyDelayed quote: Aug 10, 2026, 11:00 AM EDT

Total return — AAOI vs AMKR

growth of $100 · dividends reinvested · last 10y

AAOI +901.0% (+25.9%/yr)AMKR +584.3% (+21.2%/yr)AAOI compounded faster over this window

AAOI AMKR

AAOI vs AMKR: by the numbers

•AMKR is the larger company ($13.36B vs $10.36B market cap).
•AMKR is profitable (7.45% net margin) while AAOI runs a net loss (-9.57%).
•AAOI grew revenue faster over the past five years (20.68% vs 6.44% CAGR).
•AMKR pays a dividend (0.60% yield), while AAOI has no payments in the available dividend history.

Metrics side by side

Valuation

Metric	AAOI	AMKR
P/E ratio	N/A	24.78
Forward P/E	131.26	22.30
P/S ratio	18.56	1.85
P/B ratio	6.63	2.97
EV / EBITDA	N/A	11.17
FCF yield	N/A	3.74%

Profitability

Metric	AAOI	AMKR
Gross margin	28.92%	15.51%
Operating margin	-11.31%	8.64%
Net margin	-9.57%	7.45%
ROE	-3.42%	11.94%
ROIC	-4.71%	5.98%

Dividends

Metric	AAOI	AMKR
Dividend yield	N/A	0.60%
Payout ratio	N/A	22.07%

Growth (annualized)

Metric	AAOI	AMKR
Revenue CAGR (5Y)	20.68%	6.44%
EPS CAGR (5Y)	N/A	1.52%
FCF CAGR (5Y)	N/A	-2.52%
Total return CAGR (5Y)	80.10%	16.16%

Frequently asked

Which has grown faster, AAOI or AMKR?: Over the past five years, AAOI grew revenue faster — AAOI at a 20.68% CAGR versus AMKR at 6.44%.
Does AAOI or AMKR pay a bigger dividend?: AMKR pays a dividend (0.60% yield), while AAOI has no payments in the available dividend history.
Is AAOI or AMKR more profitable?: AMKR runs the higher net margin — AAOI at -9.57% versus AMKR at 7.45%.
How have AAOI and AMKR total returns compared?: Over the past 10 years, AAOI delivered 24.80% and AMKR delivered 21.90% annualized total return. Past performance doesn't predict future results.

Go deeper

Full AAOI analysis Full AMKR analysis Interactive comparison tool

Dig into the metrics

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

Applied Optoelectronics & Amkor Technology appear in these rankings

Fastest Revenue Growth 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 August 10, 2026.