APH vs. GLW: Amphenol vs. Corning Stock Comparison

November 11, 2026

How do Amphenol (APH) and Corning (GLW) 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 Corning (GLW) are both classified in the Electronic Components sub-industry within the broader Electronic Equipment, Instruments & Components industry, placing them in the closest GICS peer bucket.

Company profile comparison for Amphenol (APH) and Corning (GLW)
Profile Item	APH	GLW
Name	Amphenol Corp. Class A Common Stock	Corning Incorporated
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 Components
Market Capitalization	184.18 billion USD	91.42 billion USD
Currency	USD	USD
Exchange	NYSE	NYSE
Listing Date	November 8, 1991	December 31, 1981
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

APH

GLW

GSPC

Amphenol (APH) vs. Corning (GLW), 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 Corning (GLW). Returns over one year are annualized.

Calendar-Year Returns

Loading price history…

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

Performance Metrics

Price performance metrics for Amphenol (APH) and Corning (GLW)
Metric	APH	GLW
Total Return (1Y)	15.56%	35.36%
Total Return (3Y, Annualized)	56.62%	65.24%
Total Return (5Y, Annualized)	32.33%	27.74%

Risk Profile

Drawdown History

APH

GLW

GSPC

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

Risk Metrics

Risk profile metrics for Amphenol (APH) and Corning (GLW)
Metric	APH	GLW
Volatility (1Y, Annualized)	48.51%	76.20%
Beta (5Y)	1.27	1.25
Max Drawdown (5Y)	-28.73%	-59.47%
Avg. Volume (3M)	12.40M	9.07M

Risk-Adjusted Performance

Risk-Return Positioning

APH and GLW 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 Corning (GLW)
Metric	APH	GLW
Sharpe Ratio (1Y)	0.23	0.41
Sortino Ratio (1Y)	0.32	0.60

Profitability

ROE (TTM)

Amphenol (APH) at 40.08% sits in the top ROE quartile, while Corning (GLW) at 17.88% is closer to the peer norm — stronger capital efficiency for APH.

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%

GLW

Technology Hardware & Equipment industry group

17.88%

Max: 42.47%
Q3: 19.13%
GLW: 17.88%
Median: 11.00%
Q1: 1.63%
Min: -20.62%

Amphenol (APH) vs. Corning (GLW): 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 17.95% and Corning (GLW) at 12.13% retain more as net profit than most peers, landing in the top net margin quartile of their industries.

APH

Technology Hardware & Equipment industry group

17.95%

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

GLW

Technology Hardware & Equipment industry group

12.13%

Max: 27.60%
GLW: 12.13%
Q3: 11.66%
Median: 4.08%
Q1: 0.00%
Min: -11.02%

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

Operating Margin (TTM)

Both Amphenol (APH) at 29.68% and Corning (GLW) at 18.95% 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

29.68%

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

GLW

Technology Hardware & Equipment industry group

18.95%

Max: 36.27%
GLW: 18.95%
Q3: 18.36%
Median: 8.84%
Q1: 1.46%
Min: -21.39%

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

Profitability Metrics

Profitability metrics for Amphenol (APH) and Corning (GLW)
Metric	APH	GLW
ROE (TTM)	40.08%	17.88%
ROA (TTM)	16.00%	5.80%
Net Margin (TTM)	17.95%	12.13%
Operating Margin (TTM)	29.68%	18.95%
Gross Margin (TTM)	39.21%	36.48%

Growth

Revenue Growth

Amphenol (APH) at 51.71% sits in the top revenue growth quartile, while Corning (GLW) at 19.14% is closer to the peer norm — faster top-line expansion for APH.

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

EPS Growth

Both companies show strong earnings momentum, but Corning (GLW) at 215.52% is the standout with EPS growth above its industry range; Amphenol (APH) at 73.96% also sits in the top quartile.

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

Growth Metrics

Growth metrics for Amphenol (APH) and Corning (GLW)
Metric	APH	GLW
Revenue Growth (YoY)	51.71%	19.14%
Revenue Growth (3Y CAGR)	22.31%	3.27%
EPS Growth (YoY)	73.96%	215.52%
EPS Growth (3Y CAGR)	29.72%	5.92%

Financial Strength

Current Ratio (MRQ)

Both Amphenol (APH) at 1.94 and Corning (GLW) at 1.72 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

GLW

Technology Hardware & Equipment industry group

1.72

Max: 5.34
Q3: 3.02
Median: 1.95
GLW: 1.72
Q1: 1.32
Min: 0.17

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

Debt / Equity (MRQ)

Corning (GLW) at 0.64 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

GLW

Technology Hardware & Equipment industry group

0.64

Max: 1.76
Q3: 0.78
GLW: 0.64
Median: 0.24
Q1: 0.04
Min: 0.01

Amphenol (APH) vs. Corning (GLW): 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 Corning (GLW)
Metric	APH	GLW
Current Ratio (MRQ)	1.94	1.72
Debt / Equity (MRQ)	1.03	0.64
Net Debt / EBITDA	1.15	1.49

Dividends

Dividend Yield (TTM)

Amphenol (APH) at 0.70% earns its spot in the top quartile of its industry’s yields; Corning (GLW) at 1.08% 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

0.70%

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

GLW

Technology Hardware & Equipment industry group

1.08%

GLW: 1.08%
Max: 0.73%
Q3: 0.31%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

Amphenol (APH) vs. Corning (GLW): 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 GLW more so: Amphenol (APH) at 21.74% sits above the band, while Corning (GLW) at 45.34% exceeds every peer in its group.

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%

GLW

Technology Hardware & Equipment industry group

45.34%

GLW: 45.34%
Max: 32.27%
Q3: 14.48%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

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

Dividend Metrics

Dividend metrics for Amphenol (APH) and Corning (GLW)
Metric	APH	GLW
Dividend Yield (TTM)	0.70%	1.08%
Dividend Payout Ratio (TTM)	21.74%	45.34%

Valuation

P/E Ratio (TTM)

Amphenol (APH) at 32.43 is near its industry’s usual P/E ratio, while Corning (GLW) at 42.97 sits in the richer quartile — GLW needs stronger growth or earnings quality to justify the premium.

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

GLW

Technology Hardware & Equipment industry group

42.97

Max: 69.48
GLW: 42.97
Q3: 41.02
Median: 26.39
Q1: 19.36
Min: 6.07

Amphenol (APH) vs. Corning (GLW): 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 Corning (GLW) at 5.16 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

GLW

Technology Hardware & Equipment industry group

5.16

Max: 11.30
Q3: 5.82
GLW: 5.16
Median: 2.56
Q1: 1.05
Min: 0.00

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

P/B Ratio (MRQ)

Both Amphenol (APH) at 10.75 and Corning (GLW) at 7.03 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

10.75

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

GLW

Technology Hardware & Equipment industry group

7.03

Max: 10.75
GLW: 7.03
Q3: 5.52
Median: 3.17
Q1: 1.79
Min: 0.33

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

Valuation Metrics

Valuation metrics for Amphenol (APH) and Corning (GLW)
Metric	APH	GLW
P/E Ratio (TTM)	32.43	42.97
P/S Ratio (TTM)	5.57	5.16
P/B Ratio (MRQ)	10.75	7.03
Free Cash Flow Yield (TTM)	2.33%	0.95%