Which has the lower trailing P/E, RMBS or SIMO?

SIMO has the lower trailing P/E: RMBS trades at 39.89 and SIMO at 8.33. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, RMBS or SIMO?

Over the past five years, RMBS grew revenue faster — RMBS at a 22.51% CAGR versus SIMO at 14.30%.

Does RMBS or SIMO pay a bigger dividend?

SIMO pays a dividend (0.70% yield), while RMBS has no payments in the available dividend history.

Is RMBS or SIMO more profitable?

RMBS runs the higher net margin — RMBS at 31.69% versus SIMO at 22.06%.

How have RMBS and SIMO total returns compared?

Over the past 10 years, RMBS delivered 20.83% and SIMO delivered 21.37% annualized total return. Past performance doesn't predict future results.

Rambus Inc. (RMBS) vs Silicon Motion Technology Corporation (SIMO)

A side-by-side comparison of Rambus Inc. and Silicon Motion Technology Corporation across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of September 13, 2026. Differences are shown without an overall score or investment verdict.

RMBS

Rambus Inc.

$9.43B

$86.97TechnologyDelayed quote: Sep 11, 2026, 4:00 PM EDT

SIMO

Silicon Motion Technology Corporation

$9.55B

$284.48TechnologyDelayed quote: Sep 11, 2026, 4:00 PM EDT

Total return — RMBS vs SIMO

growth of $100 · dividends reinvested · last 10y

RMBS +558.9% (+20.7%/yr)SIMO +571.5% (+21.0%/yr)SIMO compounded faster over this window

RMBS SIMO

RMBS vs SIMO: by the numbers

•SIMO is the larger company ($9.55B vs $9.43B market cap).
•SIMO trades at the lower trailing earnings multiple (8.33 vs 39.89 P/E), one valuation lens rather than an overall verdict.
•RMBS converts more revenue to profit (31.69% vs 22.06% net margin).
•RMBS grew revenue faster over the past five years (22.51% vs 14.30% CAGR).
•SIMO pays a dividend (0.70% yield), while RMBS has no payments in the available dividend history.

Metrics side by side

Valuation

Metric	RMBS	SIMO
P/E ratio	39.89	8.33
Forward P/E	28.64	25.43
P/S ratio	12.47	7.27
P/B ratio	6.43	9.12
EV / EBITDA	30.85	38.43
FCF yield	3.18%	N/A

Profitability

Metric	RMBS	SIMO
Gross margin	78.27%	48.87%
Operating margin	35.51%	16.31%
Net margin	31.69%	22.06%
ROE	16.34%	27.68%
ROIC	14.56%	14.77%

Dividends

Metric	RMBS	SIMO
Dividend yield	N/A	0.70%
Payout ratio	N/A	5.85%

Growth (annualized)

Metric	RMBS	SIMO
Revenue CAGR (5Y)	22.51%	14.30%
EPS CAGR (5Y)	N/A	44.85%
FCF CAGR (5Y)	14.08%	-42.22%
Total return CAGR (5Y)	29.79%	32.95%

Frequently asked

Which has the lower trailing P/E, RMBS or SIMO?: SIMO has the lower trailing P/E: RMBS trades at 39.89 and SIMO at 8.33. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, RMBS or SIMO?: Over the past five years, RMBS grew revenue faster — RMBS at a 22.51% CAGR versus SIMO at 14.30%.
Does RMBS or SIMO pay a bigger dividend?: SIMO pays a dividend (0.70% yield), while RMBS has no payments in the available dividend history.
Is RMBS or SIMO more profitable?: RMBS runs the higher net margin — RMBS at 31.69% versus SIMO at 22.06%.
How have RMBS and SIMO total returns compared?: Over the past 10 years, RMBS delivered 20.83% and SIMO delivered 21.37% annualized total return. Past performance doesn't predict future results.

Go deeper

Full RMBS analysis Full SIMO analysis Interactive comparison tool

Dig into the metrics

Rambus P/E ratio Silicon Motion Technology P/E ratio Silicon Motion Technology dividend yield Rambus ROE Silicon Motion Technology ROE Rambus operating margin Silicon Motion Technology operating margin Rambus revenue growth Silicon Motion Technology revenue growth Rambus free cash flow Silicon Motion Technology free cash flow

Rambus & Silicon Motion Technology appear in these rankings

Fastest Revenue Growth Stocks Highest ROE 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 September 13, 2026.