Is ONTO or RMBS cheaper?

On trailing earnings, RMBS is cheaper: ONTO trades at a 155.96 P/E and RMBS at 67.22.

Which has grown faster, ONTO or RMBS?

Over the past five years, RMBS grew revenue faster — ONTO at a 11.93% CAGR versus RMBS at 23.51%.

Is ONTO or RMBS more profitable?

RMBS runs the higher net margin — ONTO at 10.33% versus RMBS at 31.89%.

Which has been the better investment, ONTO or RMBS?

Over the past 10-year, ONTO delivered the higher annualized total return — ONTO at 33.40% versus RMBS at 28.05%. Past performance doesn't predict future results.

Onto Innovation Inc. (ONTO) vs Rambus Inc. (RMBS)

RMBS leads on 13 of 15 compared metrics.

A side-by-side comparison of Onto Innovation Inc. and Rambus Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of June 20, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

Total return — ONTO vs RMBS

growth of $100 · last 29y

ONTO +4710.6%RMBS +1766.7%ONTO compounded faster

ONTO RMBS

ONTO vs RMBS: by the numbers

•ONTO is the larger company ($16.60B vs $15.27B market cap).
•RMBS trades at the lower earnings multiple (67.22 vs 155.96 P/E).
•RMBS converts more revenue to profit (31.89% vs 10.33% net margin).
•RMBS grew revenue faster over the past five years (23.51% vs 11.93% CAGR).

Which is better, ONTO or RMBS?

Metric tally: ONTO 2 · RMBS 13

It depends on what you're optimizing for:

ValueRMBS(lower P/E)

GrowthRMBS(faster 5Y revenue CAGR)

QualityRMBS(higher ROIC)

Metrics side by side

Valuation

Metric	ONTO	RMBS
P/E ratio	155.96	67.22●
Forward P/E	—	47.34
P/S ratio	16.19●	21.48
P/B ratio	7.83●	11.12
PEG ratio	4.53	1.53●
EV / EBITDA	79.04	48.35●
FCF yield	1.43%	2.16%●

Profitability

Metric	ONTO	RMBS
Gross margin	48.80%	77.03%●
Operating margin	10.53%	35.89%●
Net margin	10.33%	31.89%●
ROE	4.99%	16.51%●
ROIC	5.18%	15.03%●

Growth (annualized)

Metric	ONTO	RMBS
Revenue CAGR (5Y)	11.93%	23.51%●
EPS CAGR (5Y)	34.40%	48.76%●
FCF CAGR (5Y)	11.03%	16.48%●
Total return CAGR (5Y)	37.24%	44.69%●

Frequently asked

Which is better, ONTO or RMBS?: It depends on your goal. value: RMBS (lower P/E); growth: RMBS (faster 5Y revenue CAGR); quality: RMBS (higher ROIC). Across all compared metrics, RMBS leads 13 to 2.
Is ONTO or RMBS cheaper?: On trailing earnings, RMBS is cheaper: ONTO trades at a 155.96 P/E and RMBS at 67.22.
Which has grown faster, ONTO or RMBS?: Over the past five years, RMBS grew revenue faster — ONTO at a 11.93% CAGR versus RMBS at 23.51%.
Is ONTO or RMBS more profitable?: RMBS runs the higher net margin — ONTO at 10.33% versus RMBS at 31.89%.
Which has been the better investment, ONTO or RMBS?: Over the past 10-year, ONTO delivered the higher annualized total return — ONTO at 33.40% versus RMBS at 28.05%. Past performance doesn't predict future results.

Go deeper

Full ONTO analysis Full RMBS analysis Interactive comparison tool

Dig into the metrics

Onto Innovation P/E ratio Rambus P/E ratio Onto Innovation dividend yield Rambus dividend yield Onto Innovation ROE Rambus ROE Onto Innovation operating margin Rambus operating margin Onto Innovation revenue growth Rambus revenue growth Onto Innovation free cash flow Rambus free cash flow

Onto Innovation & 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 20, 2026.