Which has the lower trailing P/E, ACLS or KVYO?

ACLS has the lower trailing P/E: ACLS trades at 49.64 and KVYO at 751.42. P/E is one valuation measure and does not by itself establish which business is cheaper.

Is ACLS or KVYO more profitable?

ACLS runs the higher net margin — ACLS at 10.71% versus KVYO at 0.49%.

Axcelis Technologies, Inc. (ACLS) vs Klaviyo, Inc. (KVYO)

A side-by-side comparison of Axcelis Technologies, Inc. and Klaviyo, Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of October 2, 2026. Differences are shown without an overall score or investment verdict.

ACLS

Axcelis Technologies, Inc.

$4.55B

$147.93TechnologyDelayed quote: Oct 2, 2026, 1:05 PM EDT

KVYO

Klaviyo, Inc.

$4.75B

$15.86TechnologyDelayed quote: Oct 2, 2026, 1:05 PM EDT

Total return — ACLS vs KVYO

growth of $100 · dividends reinvested · last 3y

ACLS -23.6% (-8.6%/yr)KVYO -50.6% (-20.9%/yr)ACLS compounded faster over this window

ACLS KVYO

ACLS vs KVYO: by the numbers

•KVYO is the larger company ($4.75B vs $4.55B market cap).
•ACLS trades at the lower trailing earnings multiple (49.64 vs 751.42 P/E), one valuation lens rather than an overall verdict.
•ACLS converts more revenue to profit (10.71% vs 0.49% net margin).

Metrics side by side

Valuation

Metric	ACLS	KVYO
P/E ratio	49.64	751.42
Forward P/E	36.03	N/A
PEG ratio	2.35	N/A
P/S ratio	5.25	3.41
P/B ratio	4.27	4.91
EV / EBITDA	41.40	N/A
FCF yield	1.44%	4.88%

Profitability

Metric	ACLS	KVYO
Gross margin	43.01%	73.79%
Operating margin	10.33%	-1.86%
Net margin	10.71%	0.49%
ROE	8.71%	0.70%
ROIC	6.58%	-1.54%

Growth (annualized)

Metric	ACLS	KVYO
Revenue CAGR (5Y)	11.06%	N/A
EPS CAGR (5Y)	20.50%	N/A
FCF CAGR (5Y)	4.66%	N/A
Total return CAGR (5Y)	23.39%	N/A

Frequently asked

Which has the lower trailing P/E, ACLS or KVYO?: ACLS has the lower trailing P/E: ACLS trades at 49.64 and KVYO at 751.42. P/E is one valuation measure and does not by itself establish which business is cheaper.
Is ACLS or KVYO more profitable?: ACLS runs the higher net margin — ACLS at 10.71% versus KVYO at 0.49%.

Go deeper

Full ACLS analysis Full KVYO analysis Interactive comparison tool

Dig into the metrics

Axcelis Technologies P/E ratio Klaviyo P/E ratio Axcelis Technologies ROE Klaviyo ROE Axcelis Technologies operating margin Klaviyo operating margin Axcelis Technologies revenue growth Klaviyo revenue growth Axcelis Technologies free cash flow Klaviyo free cash flow

Axcelis Technologies & Klaviyo appear in these rankings

Highest FCF Yield 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 October 2, 2026.