Which has grown faster, AAOI or AEIS?

Over the past five years, AAOI grew revenue faster — AAOI at a 20.68% CAGR versus AEIS at 6.70%.

Does AAOI or AEIS pay a bigger dividend?

AEIS pays a dividend (0.14% yield), while AAOI has no payments in the available dividend history.

Is AAOI or AEIS more profitable?

AEIS runs the higher net margin — AAOI at -9.57% versus AEIS at 10.77%.

How have AAOI and AEIS total returns compared?

Over the past 10 years, AAOI delivered 24.68% and AEIS delivered 20.91% annualized total return. Past performance doesn't predict future results.

Applied Optoelectronics, Inc. (AAOI) vs Advanced Energy Industries, Inc. (AEIS)

A side-by-side comparison of Applied Optoelectronics, Inc. and Advanced Energy Industries, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of August 23, 2026. Differences are shown without an overall score or investment verdict.

AAOI

Applied Optoelectronics, Inc.

$10.02B

$124.82TechnologyAt close: Aug 21, 2026, 4:00 PM ET

AEIS

Advanced Energy Industries, Inc.

$11.45B

$285.83TechnologyAt close: Aug 21, 2026, 4:00 PM ET

Total return — AAOI vs AEIS

growth of $100 · dividends reinvested · last 10y

AAOI +790.3% (+24.4%/yr)AEIS +568.2% (+20.9%/yr)AAOI compounded faster over this window

AAOI AEIS

AAOI vs AEIS: by the numbers

•AEIS is the larger company ($11.45B vs $10.02B market cap).
•AEIS is profitable (10.77% net margin) while AAOI runs a net loss (-9.57%).
•AAOI grew revenue faster over the past five years (20.68% vs 6.70% CAGR).
•AEIS pays a dividend (0.14% yield), while AAOI has no payments in the available dividend history.

Metrics side by side

Valuation

Metric	AAOI	AEIS
P/E ratio	N/A	53.33
Forward P/E	168.68	25.42
P/S ratio	17.08	5.93
P/B ratio	6.10	8.30
EV / EBITDA	N/A	35.32
FCF yield	N/A	0.72%

Profitability

Metric	AAOI	AEIS
Gross margin	28.92%	39.74%
Operating margin	-11.31%	13.71%
Net margin	-9.57%	10.77%
ROE	-3.42%	15.07%
ROIC	-3.49%	8.56%

Dividends

Metric	AAOI	AEIS
Dividend yield	N/A	0.14%
Payout ratio	N/A	10.13%

Growth (annualized)

Metric	AAOI	AEIS
Revenue CAGR (5Y)	20.68%	6.70%
EPS CAGR (5Y)	N/A	2.33%
FCF CAGR (5Y)	N/A	-14.03%
Total return CAGR (5Y)	79.88%	28.56%

Frequently asked

Which has grown faster, AAOI or AEIS?: Over the past five years, AAOI grew revenue faster — AAOI at a 20.68% CAGR versus AEIS at 6.70%.
Does AAOI or AEIS pay a bigger dividend?: AEIS pays a dividend (0.14% yield), while AAOI has no payments in the available dividend history.
Is AAOI or AEIS more profitable?: AEIS runs the higher net margin — AAOI at -9.57% versus AEIS at 10.77%.
How have AAOI and AEIS total returns compared?: Over the past 10 years, AAOI delivered 24.68% and AEIS delivered 20.91% annualized total return. Past performance doesn't predict future results.

Go deeper

Full AAOI analysis Full AEIS analysis Interactive comparison tool

Dig into the metrics

Advanced Energy Industries P/E ratio Advanced Energy Industries dividend yield Applied Optoelectronics ROE Advanced Energy Industries ROE Applied Optoelectronics operating margin Advanced Energy Industries operating margin Applied Optoelectronics revenue growth Advanced Energy Industries revenue growth Applied Optoelectronics free cash flow Advanced Energy Industries free cash flow

Applied Optoelectronics & Advanced Energy Industries 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 23, 2026.