APH vs. CLS: Amphenol vs. Celestica Stock Comparison

November 11, 2026

How do Amphenol (APH) and Celestica (CLS) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.

Company Profile

Amphenol (APH) and Celestica (CLS) both belong to the Electronic Equipment, Instruments & Components industry, though APH is classified under Electronic Components while CLS falls under Electronic Manufacturing Services.

Company profile comparison for Amphenol (APH) and Celestica (CLS)
Profile Item	APH	CLS
Name	Amphenol Corp. Class A Common Stock	Celestica Inc.
Country/Region	United States	Canada
GICS Sector	Information Technology	Information Technology
GICS Industry Group	Technology Hardware & Equipment	Technology Hardware & Equipment
GICS Industry	Electronic Equipment, Instruments & Components	Electronic Equipment, Instruments & Components
GICS Sub-Industry	Electronic Components	Electronic Manufacturing Services
Market Capitalization	184.18 billion USD	26.06 billion USD
Currency	USD	USD
Exchange	NYSE	NYSE
Listing Date	November 8, 1991	June 30, 1998
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

APH

CLS

GSPC

Amphenol (APH) vs. Celestica (CLS), with S&P 500 (GSPC) for reference: Growth of a $10,000 investment over the past five years. Adjusted for dividends and splits.

Trailing Returns

Loading price history…

Trailing total returns for Amphenol (APH) and Celestica (CLS). Returns over one year are annualized.

Calendar-Year Returns

Loading price history…

Calendar-year total returns for Amphenol (APH) and Celestica (CLS). Each bar is that year's total return, measured year-end to year-end.

Performance Metrics

Price performance metrics for Amphenol (APH) and Celestica (CLS)
Metric	APH	CLS
Total Return (1Y)	15.56%	-30.98%
Total Return (3Y, Annualized)	56.62%	108.72%
Total Return (5Y, Annualized)	32.33%	80.82%

Risk Profile

Drawdown History

APH

CLS

GSPC

Amphenol (APH) vs. Celestica (CLS), with S&P 500 (GSPC) for reference: Drawdown from the running peak over the past five years. Each line shows the decline from its prior peak; 0% marks a new high.

Return Distribution

Loading price history…

Distribution of monthly total returns for Amphenol (APH) and Celestica (CLS). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Celestica (CLS) carries a highly aggressive beta of 2.16, indicating much higher sensitivity to broad-market moves, whereas Amphenol (APH) is closer to market-like at 1.27 — a noticeable difference in market-sensitivity profile.

Risk profile metrics for Amphenol (APH) and Celestica (CLS)
Metric	APH	CLS
Volatility (1Y, Annualized)	48.51%	80.89%
Beta (5Y)	1.27	2.16
Max Drawdown (5Y)	-28.73%	-56.47%
Avg. Volume (3M)	12.40M	2.61M

Risk-Adjusted Performance

Risk-Return Positioning

APH and CLS are plotted by 1-year volatility (risk) and 1-year return. The dashed Capital Allocation Line runs from the risk-free rate through the shared industry median.

Risk-Adjusted Metrics

Risk-adjusted metrics for Amphenol (APH) and Celestica (CLS)
Metric	APH	CLS
Sharpe Ratio (1Y)	0.23	-0.44
Sortino Ratio (1Y)	0.32	-0.59

Profitability

ROE (TTM)

Both Amphenol (APH) at 40.08% and Celestica (CLS) at 30.23% sit in the top peer quartile for ROE, suggesting each generates more profit from shareholders’ equity than typical industry peers.

APH

Technology Hardware & Equipment industry group

40.08%

Max: 42.47%
APH: 40.08%
Q3: 19.13%
Median: 11.00%
Q1: 1.63%
Min: -20.62%

CLS

Technology Hardware & Equipment industry group

30.23%

Max: 42.47%
CLS: 30.23%
Q3: 19.13%
Median: 11.00%
Q1: 1.63%
Min: -20.62%

Amphenol (APH) vs. Celestica (CLS): A comparison of their ROE against the Technology Hardware & Equipment industry group benchmark.

Net Margin (TTM)

Amphenol (APH) at 17.95% retains a top-quartile share of revenue as profit, ahead of Celestica (CLS) at 6.83%, which keeps about the industry-typical share.

APH

Technology Hardware & Equipment industry group

17.95%

Max: 27.60%
APH: 17.95%
Q3: 11.66%
Median: 4.08%
Q1: 0.00%
Min: -11.02%

CLS

Technology Hardware & Equipment industry group

6.83%

Max: 27.60%
Q3: 11.66%
CLS: 6.83%
Median: 4.08%
Q1: 0.00%
Min: -11.02%

Amphenol (APH) vs. Celestica (CLS): A comparison of their net margin against the Technology Hardware & Equipment industry group benchmark.

Operating Margin (TTM)

Amphenol (APH) at 29.68% operates in the top operating margin quartile, ahead of Celestica (CLS) at 7.91%, which runs around its industry’s norm.

APH

Technology Hardware & Equipment industry group

29.68%

Max: 36.27%
APH: 29.68%
Q3: 18.36%
Median: 8.84%
Q1: 1.46%
Min: -21.39%

CLS

Technology Hardware & Equipment industry group

7.91%

Max: 36.27%
Q3: 18.36%
Median: 8.84%
CLS: 7.91%
Q1: 1.46%
Min: -21.39%

Amphenol (APH) vs. Celestica (CLS): A comparison of their operating margin against the Technology Hardware & Equipment industry group benchmark.

Profitability Metrics

Profitability metrics for Amphenol (APH) and Celestica (CLS)
Metric	APH	CLS
ROE (TTM)	40.08%	30.23%
ROA (TTM)	16.00%	8.72%
Net Margin (TTM)	17.95%	6.83%
Operating Margin (TTM)	29.68%	7.91%
Gross Margin (TTM)	39.21%	11.46%

Growth

Revenue Growth

Both Amphenol (APH) at 51.71% and Celestica (CLS) at 28.46% sit in the top peer quartile for revenue growth, so each is growing its top line faster than typical industry peers.

Amphenol (APH) vs. Celestica (CLS): A comparison of their Revenue Growth across different time periods.

EPS Growth

Both Amphenol (APH) at 73.96% and Celestica (CLS) at 98.34% sit in the top peer quartile for EPS growth, so each is compounding per-share earnings faster than typical industry peers.

Amphenol (APH) vs. Celestica (CLS): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for Amphenol (APH) and Celestica (CLS)
Metric	APH	CLS
Revenue Growth (YoY)	51.71%	28.46%
Revenue Growth (3Y CAGR)	22.31%	19.56%
EPS Growth (YoY)	73.96%	98.34%
EPS Growth (3Y CAGR)	29.72%	82.39%

Financial Strength

Current Ratio (MRQ)

Both Amphenol (APH) at 1.94 and Celestica (CLS) at 1.61 carry current ratio within their industries’ typical mid-ranges, suggesting balanced short-term liquidity relative to peers.

APH

Technology Hardware & Equipment industry group

1.94

Max: 5.34
Q3: 3.02
Median: 1.95
APH: 1.94
Q1: 1.32
Min: 0.17

CLS

Technology Hardware & Equipment industry group

1.61

Max: 5.34
Q3: 3.02
Median: 1.95
CLS: 1.61
Q1: 1.32
Min: 0.17

Amphenol (APH) vs. Celestica (CLS): A comparison of their current ratio against the Technology Hardware & Equipment industry group benchmark.

Debt / Equity (MRQ)

Celestica (CLS) at 0.17 carries an industry-typical debt-to-equity mix, while Amphenol (APH) at 1.03 uses more debt funding than most peers.

APH

Technology Hardware & Equipment industry group

1.03

Max: 1.76
APH: 1.03
Q3: 0.78
Median: 0.24
Q1: 0.04
Min: 0.01

CLS

Technology Hardware & Equipment industry group

0.17

Max: 1.76
Q3: 0.78
Median: 0.24
CLS: 0.17
Q1: 0.04
Min: 0.01

Amphenol (APH) vs. Celestica (CLS): A comparison of their debt-to-equity ratio against the Technology Hardware & Equipment industry group benchmark.

Financial Strength Metrics

Financial strength metrics for Amphenol (APH) and Celestica (CLS)
Metric	APH	CLS
Current Ratio (MRQ)	1.94	1.61
Debt / Equity (MRQ)	1.03	0.17
Net Debt / EBITDA	1.15	-1.72

Dividends

Dividend Yield (TTM)

Celestica (CLS) pays no dividend (yield 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Amphenol (APH) reports a yield of 0.70%, ranking against industry peers normally.

APH

Technology Hardware & Equipment industry group

0.70%

Max: 0.73%
APH: 0.70%
Q3: 0.31%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

CLS

Technology Hardware & Equipment industry group

0.00%

Max: 0.73%
Q3: 0.31%
CLS: 0.00%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

Amphenol (APH) vs. Celestica (CLS): A comparison of their dividend yield against the Technology Hardware & Equipment industry group benchmark.

Dividend Payout Ratio (TTM)

Celestica (CLS) pays no dividend (payout 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Amphenol (APH) reports a payout of 21.74%, ranking against industry peers normally.

APH

Technology Hardware & Equipment industry group

21.74%

Max: 32.27%
APH: 21.74%
Q3: 14.48%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

CLS

Technology Hardware & Equipment industry group

0.00%

Max: 32.27%
Q3: 14.48%
CLS: 0.00%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

Amphenol (APH) vs. Celestica (CLS): A comparison of their payout ratio against the Technology Hardware & Equipment industry group benchmark.

Dividend Metrics

Dividend metrics for Amphenol (APH) and Celestica (CLS)
Metric	APH	CLS
Dividend Yield (TTM)	0.70%	0.00%
Dividend Payout Ratio (TTM)	21.74%	0.00%

Valuation

P/E Ratio (TTM)

Both Amphenol (APH) at 32.43 and Celestica (CLS) at 19.50 land around their industries’ usual P/E ratio levels — neither is getting a clear earnings-multiple discount or premium versus peers.

APH

Technology Hardware & Equipment industry group

32.43

Max: 69.48
Q3: 41.02
APH: 32.43
Median: 26.39
Q1: 19.36
Min: 6.07

CLS

Technology Hardware & Equipment industry group

19.50

Max: 69.48
Q3: 41.02
Median: 26.39
CLS: 19.50
Q1: 19.36
Min: 6.07

Amphenol (APH) vs. Celestica (CLS): A comparison of their P/E ratio against the Technology Hardware & Equipment industry group benchmark.

P/S Ratio (TTM)

On P/S ratio, both Amphenol (APH) at 5.57 and Celestica (CLS) at 1.43 are priced roughly in line with their industries — neither looks cheap nor rich on a sales basis.

APH

Technology Hardware & Equipment industry group

5.57

Max: 11.30
Q3: 5.82
APH: 5.57
Median: 2.56
Q1: 1.05
Min: 0.00

CLS

Technology Hardware & Equipment industry group

1.43

Max: 11.30
Q3: 5.82
Median: 2.56
CLS: 1.43
Q1: 1.05
Min: 0.00

Amphenol (APH) vs. Celestica (CLS): A comparison of their P/S ratio against the Technology Hardware & Equipment industry group benchmark.

P/B Ratio (MRQ)

Celestica (CLS) at 4.19 is valued about in line with its industry on P/B ratio, while Amphenol (APH) at 10.75 carries an above-peer premium to book — APH is pricier on assets.

APH

Technology Hardware & Equipment industry group

10.75

APH: 10.75
Max: 10.75
Q3: 5.52
Median: 3.17
Q1: 1.79
Min: 0.33

CLS

Technology Hardware & Equipment industry group

4.19

Max: 10.75
Q3: 5.52
CLS: 4.19
Median: 3.17
Q1: 1.79
Min: 0.33

Amphenol (APH) vs. Celestica (CLS): A comparison of their P/B ratio against the Technology Hardware & Equipment industry group benchmark.

Valuation Metrics

Valuation metrics for Amphenol (APH) and Celestica (CLS)
Metric	APH	CLS
P/E Ratio (TTM)	32.43	19.50
P/S Ratio (TTM)	5.57	1.43
P/B Ratio (MRQ)	10.75	4.19
Free Cash Flow Yield (TTM)	2.33%	3.08%