Which has grown faster, MP or RMBS?

Over the past five years, RMBS grew revenue faster — MP at a 14.90% CAGR versus RMBS at 23.51%.

Is MP or RMBS more profitable?

RMBS runs the higher net margin — MP at -20.48% versus RMBS at 31.89%.

Which has been the better investment, MP or RMBS?

Over the past 5-year, RMBS delivered the higher annualized total return — MP at 12.44% versus RMBS at 28.27%. Past performance doesn't predict future results.

MP Materials Corp. (MP) vs Rambus Inc. (RMBS)

RMBS leads on 10 of 11 compared metrics.

A side-by-side comparison of MP Materials Corp. and Rambus Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of June 15, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

MP Materials Corp.

$10.25B

$57.55Basic Materials

Total return — MP vs RMBS

growth of $100 · last 6y

MP +475.5%RMBS +876.7%RMBS compounded faster

MP RMBS

MP vs RMBS: by the numbers

•RMBS is the larger company ($15.85B vs $10.25B market cap).
•RMBS is profitable (31.89% net margin) while MP runs a net loss (-20.48%).
•RMBS grew revenue faster over the past five years (23.51% vs 14.90% CAGR).

Which is better, MP or RMBS?

Metric tally: MP 1 · RMBS 10

It depends on what you're optimizing for:

GrowthRMBS(faster 5Y revenue CAGR)

QualityRMBS(higher ROIC)

Metrics side by side

Valuation

Metric	MP	RMBS
P/E ratio	—	69.79
Forward P/E	52.55	49.34●
P/S ratio	32.99	22.30●
P/B ratio	4.82●	11.54
PEG ratio	—	1.53
EV / EBITDA	619.59	52.03●
FCF yield	—	2.08%

Profitability

Metric	MP	RMBS
Gross margin	24.16%	77.03%●
Operating margin	-39.42%	35.89%●
Net margin	-20.48%	31.89%●
ROE	-2.99%	16.51%●
ROIC	-2.36%	15.03%●

Growth (annualized)

Metric	MP	RMBS
Revenue CAGR (5Y)	14.90%	23.51%●
EPS CAGR (5Y)	—	48.76%
FCF CAGR (5Y)	—	16.48%
Total return CAGR (5Y)	12.44%	49.06%●

Frequently asked

Which is better, MP or RMBS?: It depends on your goal. growth: RMBS (faster 5Y revenue CAGR); quality: RMBS (higher ROIC). Across all compared metrics, RMBS leads 10 to 1.
Which has grown faster, MP or RMBS?: Over the past five years, RMBS grew revenue faster — MP at a 14.90% CAGR versus RMBS at 23.51%.
Is MP or RMBS more profitable?: RMBS runs the higher net margin — MP at -20.48% versus RMBS at 31.89%.
Which has been the better investment, MP or RMBS?: Over the past 5-year, RMBS delivered the higher annualized total return — MP at 12.44% versus RMBS at 28.27%. Past performance doesn't predict future results.

Go deeper

Full MP analysis Full RMBS analysis Interactive comparison tool

Dig into the metrics

MP Materials P/E ratio Rambus P/E ratio MP Materials dividend yield Rambus dividend yield MP Materials ROE Rambus ROE MP Materials operating margin Rambus operating margin MP Materials revenue growth Rambus revenue growth MP Materials free cash flow Rambus free cash flow

MP Materials & 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 15, 2026.