APH vs. FLEX: Amphenol vs. Flex Stock Comparison

October 3, 2026

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

Company profile comparison for Amphenol (APH) and Flex (FLEX)
Profile Item	APH	FLEX
Name	Amphenol Corp. Class A Common Stock	Flex Ltd.
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	Electronic Equipment, Instruments & Components
GICS Sub-Industry	Electronic Components	Electronic Manufacturing Services
Market Capitalization	214.44 billion USD	43.08 billion USD
Currency	USD	USD
Exchange	NYSE	Nasdaq
Listing Date	November 8, 1991	March 18, 1994
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

APH

FLEX

GSPC

Amphenol (APH) vs. Flex (FLEX), 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 Flex (FLEX). Returns over one year are annualized.

Calendar-Year Returns

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

Performance Metrics

Price performance metrics for Amphenol (APH) and Flex (FLEX)
Metric	APH	FLEX
Total Return (1Y)	41.72%	100.74%
Total Return (3Y, Annualized)	62.71%	79.65%
Total Return (5Y, Annualized)	37.28%	53.38%

Risk Profile

Drawdown History

APH

FLEX

GSPC

Amphenol (APH) vs. Flex (FLEX), 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 Flex (FLEX). Each bar is the share of months whose return fell in that 5% bucket.

Risk Metrics

Risk profile metrics for Amphenol (APH) and Flex (FLEX)
Metric	APH	FLEX
Volatility (1Y, Annualized)	45.63%	69.38%
Beta (5Y)	1.26	1.76
Max Drawdown (5Y)	-28.73%	-39.99%
Avg. Volume (3M)	12.56M	3.76M

Risk-Adjusted Performance

Risk-Return Positioning

APH and FLEX 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 Flex (FLEX)
Metric	APH	FLEX
Sharpe Ratio (1Y)	0.82	1.39
Sortino Ratio (1Y)	1.15	2.46

Profitability

ROE (TTM)

Amphenol (APH) at 38.12% sits in the top ROE quartile, while Flex (FLEX) at 18.38% is closer to the peer norm — stronger capital efficiency for APH.

APH

Technology Hardware & Equipment industry group

38.12%

Max: 44.01%
APH: 38.12%
Q3: 18.64%
Median: 10.41%
Q1: 0.19%
Min: -24.95%

FLEX

Technology Hardware & Equipment industry group

18.38%

Max: 44.01%
Q3: 18.64%
FLEX: 18.38%
Median: 10.41%
Q1: 0.19%
Min: -24.95%

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

Net Margin (TTM)

Amphenol (APH) at 17.73% retains a top-quartile share of revenue as profit, ahead of Flex (FLEX) at 3.33%, which keeps about the industry-typical share.

APH

Technology Hardware & Equipment industry group

17.73%

Max: 27.62%
APH: 17.73%
Q3: 10.84%
Median: 3.57%
Q1: -0.98%
Min: -12.98%

FLEX

Technology Hardware & Equipment industry group

3.33%

Max: 27.62%
Q3: 10.84%
Median: 3.57%
FLEX: 3.33%
Q1: -0.98%
Min: -12.98%

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

Operating Margin (TTM)

Amphenol (APH) at 29.78% operates in the top operating margin quartile, ahead of Flex (FLEX) at 4.97%, which runs around its industry’s norm.

APH

Technology Hardware & Equipment industry group

29.78%

Max: 36.27%
APH: 29.78%
Q3: 17.80%
Median: 7.40%
Q1: 1.69%
Min: -21.39%

FLEX

Technology Hardware & Equipment industry group

4.97%

Max: 36.27%
Q3: 17.80%
Median: 7.40%
FLEX: 4.97%
Q1: 1.69%
Min: -21.39%

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

Profitability Metrics

Profitability metrics for Amphenol (APH) and Flex (FLEX)
Metric	APH	FLEX
ROE (TTM)	38.12%	18.38%
ROA (TTM)	14.47%	4.42%
Net Margin (TTM)	17.73%	3.33%
Operating Margin (TTM)	29.78%	4.97%
Gross Margin (TTM)	38.95%	9.53%

Growth

Revenue Growth

Amphenol (APH) at 51.71% sits in the top revenue growth quartile, while Flex (FLEX) at 8.14% is closer to the peer norm — faster top-line expansion for APH.

Amphenol (APH) vs. Flex (FLEX): 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 Flex (FLEX) at 10.43% is closer to the peer norm — faster per-share earnings growth for APH.

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

Growth Metrics

Growth metrics for Amphenol (APH) and Flex (FLEX)
Metric	APH	FLEX
Revenue Growth (YoY)	51.71%	8.14%
Revenue Growth (3Y CAGR)	22.31%	-0.69%
EPS Growth (YoY)	73.96%	10.43%
EPS Growth (3Y CAGR)	29.72%	10.65%

Financial Strength

Current Ratio (MRQ)

Both Amphenol (APH) at 1.89 and Flex (FLEX) at 1.38 carry current ratio within their industries’ typical mid-ranges, suggesting balanced short-term liquidity relative to peers.

APH

Technology Hardware & Equipment industry group

1.89

Max: 5.34
Q3: 3.08
Median: 1.98
APH: 1.89
Q1: 1.30
Min: 0.17

FLEX

Technology Hardware & Equipment industry group

1.38

Max: 5.34
Q3: 3.08
Median: 1.98
FLEX: 1.38
Q1: 1.30
Min: 0.17

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

Debt / Equity (MRQ)

Both Amphenol (APH) at 1.20 and Flex (FLEX) at 1.08 lean more heavily on debt funding than most peers, landing in the higher-leverage quartile of their industries.

APH

Technology Hardware & Equipment industry group

1.20

Max: 1.80
APH: 1.20
Q3: 0.79
Median: 0.26
Q1: 0.04
Min: 0.00

FLEX

Technology Hardware & Equipment industry group

1.08

Max: 1.80
FLEX: 1.08
Q3: 0.79
Median: 0.26
Q1: 0.04
Min: 0.00

Amphenol (APH) vs. Flex (FLEX): 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 Flex (FLEX)
Metric	APH	FLEX
Current Ratio (MRQ)	1.89	1.38
Debt / Equity (MRQ)	1.20	1.08
Net Debt / EBITDA	1.42	1.46

Dividends

Dividend Yield (TTM)

Flex (FLEX) 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 0.53%, ranking against industry peers normally.

APH

Technology Hardware & Equipment industry group

0.53%

Max: 0.76%
APH: 0.53%
Q3: 0.31%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

FLEX

Technology Hardware & Equipment industry group

0.00%

Max: 0.76%
Q3: 0.31%
FLEX: 0.00%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

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

Dividend Payout Ratio (TTM)

Flex (FLEX) 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 22.88%, ranking against industry peers normally.

APH

Technology Hardware & Equipment industry group

22.88%

Max: 30.23%
APH: 22.88%
Q3: 12.39%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

FLEX

Technology Hardware & Equipment industry group

0.00%

Max: 30.23%
Q3: 12.39%
FLEX: 0.00%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

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

Dividend Metrics

Dividend metrics for Amphenol (APH) and Flex (FLEX)
Metric	APH	FLEX
Dividend Yield (TTM)	0.53%	0.00%
Dividend Payout Ratio (TTM)	22.88%	0.00%

Valuation

P/E Ratio (TTM)

Both Amphenol (APH) at 42.84 and Flex (FLEX) at 43.51 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

42.84

Max: 92.49
Q3: 57.87
APH: 42.84
Median: 34.60
Q1: 22.13
Min: 12.26

FLEX

Technology Hardware & Equipment industry group

43.51

Max: 92.49
Q3: 57.87
FLEX: 43.51
Median: 34.60
Q1: 22.13
Min: 12.26

Amphenol (APH) vs. Flex (FLEX): 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 7.39 and Flex (FLEX) at 1.47 are priced roughly in line with their industries — neither looks cheap nor rich on a sales basis.

APH

Technology Hardware & Equipment industry group

7.39

Max: 16.47
Q3: 8.05
APH: 7.39
Median: 3.42
Q1: 1.43
Min: 0.00

FLEX

Technology Hardware & Equipment industry group

1.47

Max: 16.47
Q3: 8.05
Median: 3.42
FLEX: 1.47
Q1: 1.43
Min: 0.00

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

P/B Ratio (MRQ)

Both Amphenol (APH) at 13.84 and Flex (FLEX) at 7.83 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

13.84

APH: 13.84
Max: 13.84
Q3: 7.08
Median: 3.54
Q1: 2.20
Min: -1.28

FLEX

Technology Hardware & Equipment industry group

7.83

Max: 13.84
FLEX: 7.83
Q3: 7.08
Median: 3.54
Q1: 2.20
Min: -1.28

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

Valuation Metrics

Valuation metrics for Amphenol (APH) and Flex (FLEX)
Metric	APH	FLEX
P/E Ratio (TTM)	42.84	43.51
P/S Ratio (TTM)	7.39	1.47
P/B Ratio (MRQ)	13.84	7.83
Free Cash Flow Yield (TTM)	1.78%	1.45%