Which has the lower trailing P/E, ATI or CLS?

CLS has the lower trailing P/E: ATI trades at 58.29 and CLS at 35.99. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, ATI or CLS?

Over the past five years, CLS grew revenue faster — ATI at a 11.07% CAGR versus CLS at 22.80%.

Is ATI or CLS more profitable?

ATI runs the higher net margin — ATI at 10.09% versus CLS at 7.16%.

How have ATI and CLS total returns compared?

Over the past 10 years, ATI delivered 28.54% and CLS delivered 40.78% annualized total return. Past performance doesn't predict future results.

ATI Inc. (ATI) vs Celestica Inc. (CLS)

A side-by-side comparison of ATI Inc. and Celestica Inc. across valuation, profitability, dividends, and growth — built entirely from reported fundamentals, as of September 10, 2026. Differences are shown without an overall score or investment verdict.

Different business models: ATI is classified in Industrials; CLS is classified in Technology. Margin, capital intensity, and valuation differences should be interpreted in that sector context.

ATI

ATI Inc.

$27.13B

$198.77IndustrialsDelayed quote: Sep 11, 2026, 4:00 PM EDT

CLS

Celestica Inc.

$39.85B

$346.55TechnologyDelayed quote: Sep 11, 2026, 4:00 PM EDT

Total return — ATI vs CLS

growth of $100 · dividends reinvested · last 10y

ATI +1008.6% (+27.2%/yr)CLS +3063.6% (+41.3%/yr)CLS compounded faster over this window

ATI CLS

ATI vs CLS: by the numbers

•CLS is the larger company ($39.85B vs $27.13B market cap).
•CLS trades at the lower trailing earnings multiple (35.99 vs 58.29 P/E), one valuation lens rather than an overall verdict.
•ATI converts more revenue to profit (10.09% vs 7.16% net margin).
•CLS grew revenue faster over the past five years (22.80% vs 11.07% CAGR).

Metrics side by side

Valuation

Metric	ATI	CLS
P/E ratio	58.29	35.99
Forward P/E	39.33	30.38
P/S ratio	5.75	2.55
P/B ratio	14.45	16.07
EV / EBITDA	30.25	27.75
FCF yield	1.94%	1.30%

Profitability

Metric	ATI	CLS
Gross margin	23.35%	11.59%
Operating margin	15.35%	8.13%
Net margin	10.09%	7.16%
ROE	25.35%	45.07%
ROIC	12.58%	29.75%

Growth (annualized)

Metric	ATI	CLS
Revenue CAGR (5Y)	11.07%	22.80%
EPS CAGR (5Y)	6.43%	73.33%
FCF CAGR (5Y)	43.10%	29.00%
Total return CAGR (5Y)	62.96%	106.10%

Frequently asked

Which has the lower trailing P/E, ATI or CLS?: CLS has the lower trailing P/E: ATI trades at 58.29 and CLS at 35.99. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, ATI or CLS?: Over the past five years, CLS grew revenue faster — ATI at a 11.07% CAGR versus CLS at 22.80%.
Is ATI or CLS more profitable?: ATI runs the higher net margin — ATI at 10.09% versus CLS at 7.16%.
How have ATI and CLS total returns compared?: Over the past 10 years, ATI delivered 28.54% and CLS delivered 40.78% annualized total return. Past performance doesn't predict future results.

Go deeper

Full ATI analysis Full CLS analysis Interactive comparison tool

Dig into the metrics

ATI P/E ratio Celestica P/E ratio ATI ROE Celestica ROE ATI operating margin Celestica operating margin ATI revenue growth Celestica revenue growth ATI free cash flow Celestica free cash flow

ATI & Celestica appear in these rankings

Fastest Revenue Growth Stocks Highest ROE Stocks Highest ROIC 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 10, 2026.