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

CLS has the lower trailing P/E: ATI trades at 63.79 and CLS at 33.05. 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 8.60% CAGR versus CLS at 22.80%.

Is ATI or CLS more profitable?

ATI runs the higher net margin — ATI at 9.26% versus CLS at 7.16%.

How have ATI and CLS total returns compared?

Over the past 10 years, ATI delivered 26.71% and CLS delivered 40.11% 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 July 28, 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.

$25.52B

$186.99IndustrialsDelayed quote: Jul 28, 2026, 4:00 PM EDT

CLS

Celestica Inc.

$40.26B

$350.20TechnologyDelayed quote: Jul 28, 2026, 4:00 PM EDT

Total return — ATI vs CLS

growth of $100 · dividends reinvested · last 27y

ATI +1019.0%CLS +836.9%ATI compounded faster

ATI CLS

ATI vs CLS: by the numbers

•CLS is the larger company ($40.26B vs $25.52B market cap).
•CLS trades at the lower trailing earnings multiple (33.05 vs 63.79 P/E), one valuation lens rather than an overall verdict.
•ATI converts more revenue to profit (9.26% vs 7.16% net margin).
•CLS grew revenue faster over the past five years (22.80% vs 8.60% CAGR).

Metrics side by side

Valuation

Metric	ATI	CLS
P/E ratio	63.79	33.05
Forward P/E	43.33	31.47
P/S ratio	5.84	2.37
P/B ratio	15.17	14.91
PEG ratio	11.26	0.39
EV / EBITDA	33.79	26.58
FCF yield	2.06%	1.41%

Profitability

Metric	ATI	CLS
Gross margin	22.53%	11.59%
Operating margin	14.47%	8.13%
Net margin	9.26%	7.16%
ROE	24.03%	45.07%
ROIC	12.27%	27.74%

Growth (annualized)

Metric	ATI	CLS
Revenue CAGR (5Y)	8.60%	22.80%
EPS CAGR (5Y)	6.43%	73.33%
FCF CAGR (5Y)	73.92%	29.00%
Total return CAGR (5Y)	56.60%	105.32%

Frequently asked

Which has the lower trailing P/E, ATI or CLS?: CLS has the lower trailing P/E: ATI trades at 63.79 and CLS at 33.05. 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 8.60% CAGR versus CLS at 22.80%.
Is ATI or CLS more profitable?: ATI runs the higher net margin — ATI at 9.26% versus CLS at 7.16%.
How have ATI and CLS total returns compared?: Over the past 10 years, ATI delivered 26.71% and CLS delivered 40.11% 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 dividend yield Celestica dividend yield 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 July 28, 2026.