Is IOT or ONTO cheaper?

On trailing earnings, ONTO is cheaper: IOT trades at a 308.58 P/E and ONTO at 150.58.

Which has grown faster, IOT or ONTO?

Over the past five years, IOT grew revenue faster — IOT at a 45.31% CAGR versus ONTO at 11.93%.

Is IOT or ONTO more profitable?

ONTO runs the higher net margin — IOT at 3.32% versus ONTO at 10.33%.

Samsara Inc. (IOT) vs Onto Innovation Inc. (ONTO)

ONTO leads on 8 of 12 compared metrics.

A side-by-side comparison of Samsara Inc. and Onto Innovation Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of June 24, 2026. The ● marks the stronger figure on each row (cheaper multiple, higher margin/return).

Total return — IOT vs ONTO

growth of $100 · last 5y

IOT +26.7%ONTO +229.0%ONTO compounded faster

IOT ONTO

IOT vs ONTO: by the numbers

•IOT is the larger company ($18.06B vs $16.03B market cap).
•ONTO trades at the lower earnings multiple (150.58 vs 308.58 P/E).
•ONTO converts more revenue to profit (10.33% vs 3.32% net margin).
•IOT grew revenue faster over the past five years (45.31% vs 11.93% CAGR).

Which is better, IOT or ONTO?

Metric tally: IOT 4 · ONTO 8

It depends on what you're optimizing for:

ValueONTO(lower P/E)

GrowthIOT(faster 5Y revenue CAGR)

QualityIOT(higher ROIC)

Metrics side by side

Valuation

Metric	IOT	ONTO
P/E ratio	308.58	150.58●
P/S ratio	10.63●	15.63
P/B ratio	12.20	7.56●
PEG ratio	18.70	4.38●
EV / EBITDA	187.64	76.27●
FCF yield	1.28%	1.48%●

Profitability

Metric	IOT	ONTO
Gross margin	76.25%●	48.80%
Operating margin	-0.70%	10.53%●
Net margin	3.32%	10.33%●
ROE	3.81%	4.99%●
ROIC	32.34%●	5.18%

Growth (annualized)

Metric	IOT	ONTO
Revenue CAGR (5Y)	45.31%●	11.93%
EPS CAGR (5Y)	—	34.40%
FCF CAGR (5Y)	—	11.03%
Total return CAGR (5Y)	—	35.02%

Frequently asked

Which is better, IOT or ONTO?: It depends on your goal. value: ONTO (lower P/E); growth: IOT (faster 5Y revenue CAGR); quality: IOT (higher ROIC). Across all compared metrics, ONTO leads 8 to 4.
Is IOT or ONTO cheaper?: On trailing earnings, ONTO is cheaper: IOT trades at a 308.58 P/E and ONTO at 150.58.
Which has grown faster, IOT or ONTO?: Over the past five years, IOT grew revenue faster — IOT at a 45.31% CAGR versus ONTO at 11.93%.
Is IOT or ONTO more profitable?: ONTO runs the higher net margin — IOT at 3.32% versus ONTO at 10.33%.

Go deeper

Full IOT analysis Full ONTO analysis Interactive comparison tool

Dig into the metrics

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

Samsara & Onto Innovation appear in these rankings

Fastest Revenue Growth Stocks Highest ROIC 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 24, 2026.