Which has grown faster, AAOI or RMBS?

Over the past five years, RMBS grew revenue faster — AAOI at a 15.77% CAGR versus RMBS at 23.51%.

Is AAOI or RMBS more profitable?

RMBS runs the higher net margin — AAOI at -8.55% versus RMBS at 31.89%.

Which has been the better investment, AAOI or RMBS?

Over the past 10-year, AAOI delivered the higher annualized total return — AAOI at 32.46% versus RMBS at 27.92%. Past performance doesn't predict future results.

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

RMBS leads on 9 of 10 compared metrics.

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 June 23, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

AAOI

Applied Optoelectronics, Inc.

Total return — AAOI vs RMBS

growth of $100 · last 13y

AAOI +1619.2%RMBS +1435.6%AAOI compounded faster

AAOI RMBS

AAOI vs RMBS: by the numbers

•RMBS is the larger company ($15.18B vs $13.74B market cap).
•RMBS is profitable (31.89% net margin) while AAOI runs a net loss (-8.55%).
•RMBS grew revenue faster over the past five years (23.51% vs 15.77% CAGR).

Which is better, AAOI or RMBS?

Metric tally: AAOI 1 · RMBS 9

It depends on what you're optimizing for:

GrowthRMBS(faster 5Y revenue CAGR)

QualityRMBS(higher ROIC)

Metrics side by side

Valuation

Metric	AAOI	RMBS
P/E ratio	—	66.83
Forward P/E	165.73	47.06●
P/S ratio	25.66	21.35●
P/B ratio	11.76	11.05●
PEG ratio	—	1.53
EV / EBITDA	—	48.06
FCF yield	—	2.18%

Profitability

Metric	AAOI	RMBS
Gross margin	29.64%	77.03%●
Operating margin	-11.57%	35.89%●
Net margin	-8.55%	31.89%●
ROE	-3.92%	16.51%●
ROIC	-4.71%	15.03%●

Growth (annualized)

Metric	AAOI	RMBS
Revenue CAGR (5Y)	15.77%	23.51%●
EPS CAGR (5Y)	—	48.76%
FCF CAGR (5Y)	—	16.48%
Total return CAGR (5Y)	82.46%●	44.00%

Frequently asked

Which is better, AAOI or RMBS?: It depends on your goal. growth: RMBS (faster 5Y revenue CAGR); quality: RMBS (higher ROIC). Across all compared metrics, RMBS leads 9 to 1.
Which has grown faster, AAOI or RMBS?: Over the past five years, RMBS grew revenue faster — AAOI at a 15.77% CAGR versus RMBS at 23.51%.
Is AAOI or RMBS more profitable?: RMBS runs the higher net margin — AAOI at -8.55% versus RMBS at 31.89%.
Which has been the better investment, AAOI or RMBS?: Over the past 10-year, AAOI delivered the higher annualized total return — AAOI at 32.46% versus RMBS at 27.92%. 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 Best 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 June 23, 2026.