Which has grown faster, AAOI or RMBS?

Over the past five years, RMBS grew revenue faster — AAOI at a 20.68% CAGR versus RMBS at 22.51%.

Is AAOI or RMBS more profitable?

RMBS runs the higher net margin — AAOI at -9.57% versus RMBS at 31.69%.

How have AAOI and RMBS total returns compared?

Over the past 10 years, AAOI delivered 23.71% and RMBS delivered 21.73% annualized total return. Past performance doesn't predict future results.

Applied Optoelectronics, Inc. (AAOI) vs Rambus Inc. (RMBS)

A side-by-side comparison of Applied Optoelectronics, Inc. and Rambus Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of August 7, 2026. Differences are shown without an overall score or investment verdict.

AAOI

Applied Optoelectronics, Inc.

$11.05B

$137.66TechnologyDelayed quote: Aug 7, 2026, 11:25 AM EDT

RMBS

Rambus Inc.

$11.08B

$102.18TechnologyDelayed quote: Aug 7, 2026, 11:25 AM EDT

Total return — AAOI vs RMBS

growth of $100 · dividends reinvested · last 13y

AAOI +1147.2%RMBS +1045.1%AAOI compounded faster

AAOI RMBS

AAOI vs RMBS: by the numbers

•RMBS is the larger company ($11.08B vs $11.05B market cap).
•RMBS is profitable (31.69% net margin) while AAOI runs a net loss (-9.57%).
•RMBS grew revenue faster over the past five years (22.51% vs 20.68% CAGR).

Metrics side by side

Valuation

Metric	AAOI	RMBS
P/E ratio	N/A	44.81
Forward P/E	120.22	32.18
P/S ratio	17.00	14.19
P/B ratio	6.07	7.32
PEG ratio	N/A	1.53
EV / EBITDA	N/A	35.13
FCF yield	N/A	2.79%

Profitability

Metric	AAOI	RMBS
Gross margin	28.92%	78.27%
Operating margin	-11.31%	35.51%
Net margin	-9.57%	31.69%
ROE	-3.42%	16.34%
ROIC	-4.71%	15.03%

Growth (annualized)

Metric	AAOI	RMBS
Revenue CAGR (5Y)	20.68%	22.51%
FCF CAGR (5Y)	N/A	14.08%
Total return CAGR (5Y)	77.02%	31.43%

Frequently asked

Which has grown faster, AAOI or RMBS?: Over the past five years, RMBS grew revenue faster — AAOI at a 20.68% CAGR versus RMBS at 22.51%.
Is AAOI or RMBS more profitable?: RMBS runs the higher net margin — AAOI at -9.57% versus RMBS at 31.69%.
How have AAOI and RMBS total returns compared?: Over the past 10 years, AAOI delivered 23.71% and RMBS delivered 21.73% annualized total return. Past performance doesn't predict future results.

Go deeper

Full AAOI analysis Full RMBS analysis Interactive comparison tool

Dig into the metrics

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

Applied Optoelectronics & Rambus appear in these rankings

Fastest Revenue Growth Stocks Highest Operating Margin 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 7, 2026.