Which has grown faster, AAOI or EPAM?

Over the past five years, AAOI grew revenue faster — AAOI at a 15.77% CAGR versus EPAM at 14.78%.

Is AAOI or EPAM more profitable?

EPAM runs the higher net margin — AAOI at -8.55% versus EPAM at 6.96%.

How have AAOI and EPAM total returns compared?

Over the past 10 years, AAOI delivered 20.52% and EPAM delivered 3.62% annualized total return. Past performance doesn't predict future results.

Applied Optoelectronics, Inc. (AAOI) vs EPAM Systems, Inc. (EPAM)

A side-by-side comparison of Applied Optoelectronics, Inc. and EPAM Systems, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of July 30, 2026. Differences are shown without an overall score or investment verdict.

AAOI

Applied Optoelectronics, Inc.

$6.14B

$76.52TechnologyAt close: Jul 29, 2026, 4:00 PM ET

EPAM

EPAM Systems, Inc.

$5.58B

$106.89TechnologyDelayed quote: Jul 29, 2026, 4:00 PM EDT

Total return — AAOI vs EPAM

growth of $100 · dividends reinvested · last 13y

AAOI +905.5%EPAM +196.0%AAOI compounded faster

AAOI EPAM

AAOI vs EPAM: by the numbers

•AAOI is the larger company ($6.14B vs $5.58B market cap).
•EPAM is profitable (6.96% net margin) while AAOI runs a net loss (-8.55%).
•AAOI grew revenue faster over the past five years (15.77% vs 14.78% CAGR).

Metrics side by side

Valuation

Metric	AAOI	EPAM
P/E ratio	N/A	14.40
Forward P/E	74.06	7.70
P/S ratio	11.47	0.98
P/B ratio	5.26	1.59
PEG ratio	N/A	5.04
EV / EBITDA	N/A	6.74
FCF yield	N/A	9.99%

Profitability

Metric	AAOI	EPAM
Gross margin	29.64%	27.92%
Operating margin	-11.57%	9.91%
Net margin	-8.55%	6.96%
ROE	-3.92%	11.27%
ROIC	-4.71%	9.82%

Growth (annualized)

Metric	AAOI	EPAM
Revenue CAGR (5Y)	15.77%	14.78%
EPS CAGR (5Y)	N/A	2.86%
FCF CAGR (5Y)	N/A	4.18%
Total return CAGR (5Y)	58.01%	-28.91%

Frequently asked

Which has grown faster, AAOI or EPAM?: Over the past five years, AAOI grew revenue faster — AAOI at a 15.77% CAGR versus EPAM at 14.78%.
Is AAOI or EPAM more profitable?: EPAM runs the higher net margin — AAOI at -8.55% versus EPAM at 6.96%.
How have AAOI and EPAM total returns compared?: Over the past 10 years, AAOI delivered 20.52% and EPAM delivered 3.62% annualized total return. Past performance doesn't predict future results.

Go deeper

Full AAOI analysis Full EPAM analysis Interactive comparison tool

Dig into the metrics

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

Applied Optoelectronics & EPAM Systems appear in these rankings

Fastest Revenue Growth Stocks Highest FCF Yield Stocks Highest 10-Year Total Return Stocks Lowest P/E Ratio 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 July 30, 2026.