APH vs. CSCO: Amphenol vs. Cisco Systems Stock Comparison

August 16, 2026

How do Amphenol (APH) and Cisco Systems (CSCO) 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 Cisco Systems (CSCO) both fall under the Technology Hardware & Equipment industry group, but APH is classified in Electronic Equipment, Instruments & Components while CSCO is classified in Communications Equipment.

Company profile comparison for Amphenol (APH) and Cisco Systems (CSCO)
Profile Item	APH	CSCO
Name	Amphenol Corporation	Cisco Systems, Inc.
Country/Region	United States	United States
GICS Sector	Information Technology	Information Technology
GICS Industry Group	Technology Hardware & Equipment	Technology Hardware & Equipment
GICS Industry	Electronic Equipment, Instruments & Components	Communications Equipment
GICS Sub-Industry	Electronic Components	Communications Equipment
Market Capitalization	206.04 billion USD	440.18 billion USD
Currency	USD	USD
Exchange	NYSE	Nasdaq
Listing Date	November 8, 1991	February 16, 1990
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

APH

CSCO

GSPC

Amphenol (APH) vs. Cisco Systems (CSCO), 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

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Trailing total returns for Amphenol (APH) and Cisco Systems (CSCO). Returns over one year are annualized.

Calendar-Year Returns

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

Performance Metrics

Price performance metrics for Amphenol (APH) and Cisco Systems (CSCO)
Metric	APH	CSCO
Total Return (1Y)	51.93%	64.49%
Total Return (3Y, Annualized)	57.59%	30.91%
Total Return (5Y, Annualized)	36.43%	17.86%

Risk Profile

Drawdown History

APH

CSCO

GSPC

Amphenol (APH) vs. Cisco Systems (CSCO), 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

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

Risk Metrics

Risk profile metrics for Amphenol (APH) and Cisco Systems (CSCO)
Metric	APH	CSCO
Volatility (1Y, Annualized)	44.37%	34.10%
Beta (5Y)	1.24	1.00
Max Drawdown (5Y)	-28.73%	-36.68%
Avg. Volume (3M)	8.57M	25.50M

Risk-Adjusted Performance

Risk-Return Positioning

APH and CSCO 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 Cisco Systems (CSCO)
Metric	APH	CSCO
Sharpe Ratio (1Y)	1.08	1.77
Sortino Ratio (1Y)	1.55	2.61

Profitability

ROE (TTM)

Both Amphenol (APH) at 38.12% and Cisco Systems (CSCO) at 27.32% 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

38.12%

Max: 44.01%
APH: 38.12%
Q3: 18.43%
Median: 10.41%
Q1: 0.66%
Min: -24.95%

CSCO

Technology Hardware & Equipment industry group

27.32%

Max: 44.01%
CSCO: 27.32%
Q3: 18.43%
Median: 10.41%
Q1: 0.66%
Min: -24.95%

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

Net Margin (TTM)

For every dollar of sales, both Amphenol (APH) at 17.73% and Cisco Systems (CSCO) at 20.95% retain more as net profit than most peers, landing in the top net margin quartile of their industries.

APH

Technology Hardware & Equipment industry group

17.73%

Max: 26.11%
APH: 17.73%
Q3: 10.66%
Median: 3.40%
Q1: -0.39%
Min: -11.93%

CSCO

Technology Hardware & Equipment industry group

20.95%

Max: 26.11%
CSCO: 20.95%
Q3: 10.66%
Median: 3.40%
Q1: -0.39%
Min: -11.93%

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

Operating Margin (TTM)

Both Amphenol (APH) at 29.78% and Cisco Systems (CSCO) at 27.70% convert sales into operating profit at a top-quartile rate, pointing to tighter cost discipline before financing and tax.

APH

Technology Hardware & Equipment industry group

29.78%

Max: 36.90%
APH: 29.78%
Q3: 17.13%
Median: 7.40%
Q1: 2.09%
Min: -18.45%

CSCO

Technology Hardware & Equipment industry group

27.70%

Max: 36.90%
CSCO: 27.70%
Q3: 17.13%
Median: 7.40%
Q1: 2.09%
Min: -18.45%

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

Profitability Metrics

Profitability metrics for Amphenol (APH) and Cisco Systems (CSCO)
Metric	APH	CSCO
ROE (TTM)	38.12%	27.32%
ROA (TTM)	14.47%	7.98%
Net Margin (TTM)	17.73%	20.95%
Operating Margin (TTM)	29.78%	27.70%
Gross Margin (TTM)	38.95%	64.56%

Growth

Revenue Growth

Amphenol (APH) at 51.71% clears its industry range for revenue growth, far stronger top-line momentum than Cisco Systems (CSCO) at 5.30%, which is closer to a typical peer reading.

Amphenol (APH) vs. Cisco Systems (CSCO): A comparison of their Revenue Growth across different time periods.

EPS Growth

Amphenol (APH) at 73.96% sits in the top EPS growth quartile, while Cisco Systems (CSCO) at 2.76% is closer to the peer norm — faster per-share earnings growth for APH.

Amphenol (APH) vs. Cisco Systems (CSCO): A comparison of their EPS Growth across different time periods.

Growth Metrics

Growth metrics for Amphenol (APH) and Cisco Systems (CSCO)
Metric	APH	CSCO
Revenue Growth (YoY)	51.71%	5.30%
Revenue Growth (3Y CAGR)	22.31%	3.19%
EPS Growth (YoY)	73.96%	2.76%
EPS Growth (3Y CAGR)	29.72%	-2.55%

Financial Strength

Current Ratio (MRQ)

Amphenol (APH) at 1.89 keeps current ratio within its industry’s typical mid-range, while Cisco Systems (CSCO) at 0.93 runs in the tighter-liquidity quartile — a thinner cushion against current liabilities for CSCO.

APH

Technology Hardware & Equipment industry group

1.89

Max: 4.95
Q3: 3.05
Median: 1.99
APH: 1.89
Q1: 1.32
Min: 0.17

CSCO

Technology Hardware & Equipment industry group

0.93

Max: 4.95
Q3: 3.05
Median: 1.99
Q1: 1.32
CSCO: 0.93
Min: 0.17

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

Debt / Equity (MRQ)

Cisco Systems (CSCO) at 0.59 carries an industry-typical debt-to-equity mix, while Amphenol (APH) at 1.20 uses more debt funding than most peers.

APH

Technology Hardware & Equipment industry group

1.20

Max: 1.80
APH: 1.20
Q3: 0.82
Median: 0.27
Q1: 0.04
Min: 0.00

CSCO

Technology Hardware & Equipment industry group

0.59

Max: 1.80
Q3: 0.82
CSCO: 0.59
Median: 0.27
Q1: 0.04
Min: 0.00

Amphenol (APH) vs. Cisco Systems (CSCO): 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 Cisco Systems (CSCO)
Metric	APH	CSCO
Current Ratio (MRQ)	1.89	0.93
Debt / Equity (MRQ)	1.20	0.59
Net Debt / EBITDA	1.42	0.73

Dividends

Dividend Yield (TTM)

Amphenol (APH) at 0.55% earns its spot in the top quartile of its industry’s yields; Cisco Systems (CSCO) at 1.46% is past the top of its own peer range — territory where a dividend-safety check matters more than the headline number.

APH

Technology Hardware & Equipment industry group

0.55%

Max: 0.74%
APH: 0.55%
Q3: 0.32%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

CSCO

Technology Hardware & Equipment industry group

1.46%

CSCO: 1.46%
Max: 0.74%
Q3: 0.32%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

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

Dividend Payout Ratio (TTM)

Both pay out more than their industries’ typical bands, and CSCO more so: Amphenol (APH) at 22.88% sits above the band, while Cisco Systems (CSCO) at 49.85% exceeds every peer in its group.

APH

Technology Hardware & Equipment industry group

22.88%

Max: 34.91%
APH: 22.88%
Q3: 14.28%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

CSCO

Technology Hardware & Equipment industry group

49.85%

CSCO: 49.85%
Max: 34.91%
Q3: 14.28%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

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

Dividend Metrics

Dividend metrics for Amphenol (APH) and Cisco Systems (CSCO)
Metric	APH	CSCO
Dividend Yield (TTM)	0.55%	1.46%
Dividend Payout Ratio (TTM)	22.88%	49.85%

Valuation

P/E Ratio (TTM)

Both Amphenol (APH) at 41.88 and Cisco Systems (CSCO) at 34.15 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

41.88

Max: 106.10
Q3: 62.78
APH: 41.88
Median: 36.76
Q1: 22.85
Min: 11.58

CSCO

Technology Hardware & Equipment industry group

34.15

Max: 106.10
Q3: 62.78
Median: 36.76
CSCO: 34.15
Q1: 22.85
Min: 11.58

Amphenol (APH) vs. Cisco Systems (CSCO): 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 7.10 and Cisco Systems (CSCO) at 6.95 are priced roughly in line with their industries — neither looks cheap nor rich on a sales basis.

APH

Technology Hardware & Equipment industry group

7.10

Max: 17.14
Q3: 7.76
APH: 7.10
Median: 3.42
Q1: 1.39
Min: 0.00

CSCO

Technology Hardware & Equipment industry group

6.95

Max: 17.14
Q3: 7.76
CSCO: 6.95
Median: 3.42
Q1: 1.39
Min: 0.00

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

P/B Ratio (MRQ)

Both Amphenol (APH) at 13.30 and Cisco Systems (CSCO) at 9.01 carry a premium to book value versus peers, sitting in the upper P/B ratio quartile of their industries.

APH

Technology Hardware & Equipment industry group

13.30

Max: 17.63
APH: 13.30
Q3: 8.56
Median: 4.23
Q1: 2.14
Min: -1.92

CSCO

Technology Hardware & Equipment industry group

9.01

Max: 17.63
CSCO: 9.01
Q3: 8.56
Median: 4.23
Q1: 2.14
Min: -1.92

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

Valuation Metrics

Valuation metrics for Amphenol (APH) and Cisco Systems (CSCO)
Metric	APH	CSCO
P/E Ratio (TTM)	41.88	34.15
P/S Ratio (TTM)	7.10	6.95
P/B Ratio (MRQ)	13.30	9.01
Free Cash Flow Yield (TTM)	1.85%	2.63%