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

CLS has the lower trailing P/E: CLS trades at 40.22 and FLEX at 45.02. P/E is one valuation measure and does not by itself establish which business is cheaper.

Which has grown faster, CLS or FLEX?

Over the past five years, CLS grew revenue faster — CLS at a 22.77% CAGR versus FLEX at 3.76%.

Is CLS or FLEX more profitable?

CLS runs the higher net margin — CLS at 7.16% versus FLEX at 3.32%.

How have CLS and FLEX total returns compared?

Over the past 10 years, CLS delivered 42.46% and FLEX delivered 23.54% annualized total return. Past performance doesn't predict future results.

Celestica Inc. (CLS) vs Flex Ltd. (FLEX)

A side-by-side comparison of Celestica Inc. and Flex Ltd. 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.

CLS

Celestica Inc.

$44.53B

$387.32TechnologyDelayed quote: Oct 2, 2026, 4:01 PM EDT

FLEX

Flex Ltd.

$43.08B

$116.61TechnologyDelayed quote: Oct 2, 2026, 4:00 PM EDT

Total return — CLS vs FLEX

growth of $100 · dividends reinvested · last 10y

CLS +3380.3% (+42.6%/yr)FLEX +742.9% (+23.8%/yr)CLS compounded faster over this window

CLS FLEX

CLS vs FLEX: by the numbers

•CLS is the larger company ($44.53B vs $43.08B market cap).
•CLS trades at the lower trailing earnings multiple (40.22 vs 45.02 P/E), one valuation lens rather than an overall verdict.
•CLS converts more revenue to profit (7.16% vs 3.32% net margin).
•CLS grew revenue faster over the past five years (22.77% vs 3.76% CAGR).

Metrics side by side

Valuation

Metric	CLS	FLEX
P/E ratio	40.22	45.02
Forward P/E	35.04	24.80
PEG ratio	0.55	3.22
P/S ratio	2.86	1.47
P/B ratio	17.96	7.83
EV / EBITDA	28.77	23.59
FCF yield	1.16%	2.48%

Profitability

Metric	CLS	FLEX
Gross margin	11.95%	9.49%
Operating margin	8.86%	5.17%
Net margin	7.16%	3.32%
ROE	45.02%	17.69%
ROIC	32.38%	9.65%

Growth (annualized)

Metric	CLS	FLEX
Revenue CAGR (5Y)	22.77%	3.76%
EPS CAGR (5Y)	73.33%	13.63%
FCF CAGR (5Y)	28.93%	N/A
Total return CAGR (5Y)	109.50%	43.98%

Frequently asked

Which has the lower trailing P/E, CLS or FLEX?: CLS has the lower trailing P/E: CLS trades at 40.22 and FLEX at 45.02. P/E is one valuation measure and does not by itself establish which business is cheaper.
Which has grown faster, CLS or FLEX?: Over the past five years, CLS grew revenue faster — CLS at a 22.77% CAGR versus FLEX at 3.76%.
Is CLS or FLEX more profitable?: CLS runs the higher net margin — CLS at 7.16% versus FLEX at 3.32%.
How have CLS and FLEX total returns compared?: Over the past 10 years, CLS delivered 42.46% and FLEX delivered 23.54% annualized total return. Past performance doesn't predict future results.

Go deeper

Full CLS analysis Full FLEX analysis Interactive comparison tool

Dig into the metrics

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

Celestica & Flex 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 October 2, 2026.