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APH vs. TDY: Amphenol vs. Teledyne Stock Comparison

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

Company profile comparison for Amphenol (APH) and Teledyne (TDY)
Profile ItemAPHTDY
NameAmphenol Corp. Class A Common StockTeledyne Technologies Incorporated
Country/RegionUnited StatesUnited States
GICS SectorInformation TechnologyInformation Technology
GICS Industry GroupTechnology Hardware & EquipmentTechnology Hardware & Equipment
GICS IndustryElectronic Equipment, Instruments & ComponentsElectronic Equipment, Instruments & Components
GICS Sub-IndustryElectronic ComponentsElectronic Equipment & Instruments
Market Capitalization184.18 billion USD28.68 billion USD
CurrencyUSDUSD
ExchangeNYSENYSE
Listing DateNovember 8, 1991November 23, 1999
Security TypeCommon StockCommon Stock

Price Performance

Cumulative Growth

APH
TDY
GSPC
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Amphenol (APH) vs. Teledyne (TDY), 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 Teledyne (TDY). Returns over one year are annualized.

Calendar-Year Returns

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

Performance Metrics

Price performance metrics for Amphenol (APH) and Teledyne (TDY)
MetricAPHTDY
Total Return (1Y)15.56%25.47%
Total Return (3Y, Annualized)56.62%19.59%
Total Return (5Y, Annualized)32.33%7.96%

Risk Profile

Drawdown History

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

Risk Metrics

Amphenol (APH) is heavily traded at around 12.40M shares per day, whereas Teledyne (TDY) sees a more moderate 304.37K — larger orders in the latter may require more patience and tighter control over order sizing.

Risk profile metrics for Amphenol (APH) and Teledyne (TDY)
MetricAPHTDY
Volatility (1Y, Annualized)48.51%27.63%
Beta (5Y)1.270.88
Max Drawdown (5Y)-28.73%-32.24%
Avg. Volume (3M)12.40M304.37K

Risk-Adjusted Performance

Risk-Return Positioning

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APH and TDY 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 Teledyne (TDY)
MetricAPHTDY
Sharpe Ratio (1Y)0.230.77
Sortino Ratio (1Y)0.321.19

Profitability

ROE (TTM)

Amphenol (APH) at 40.08% sits in the top ROE quartile, while Teledyne (TDY) at 9.47% 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%

TDY

Technology Hardware & Equipment industry group

9.47%

Max
42.47%
Q3
19.13%
Median
11.00%
TDY
9.47%
Q1
1.63%
Min
-20.62%
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Amphenol (APH) vs. Teledyne (TDY): 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 Teledyne (TDY) at 15.75% 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%

TDY

Technology Hardware & Equipment industry group

15.75%

Max
27.60%
TDY
15.75%
Q3
11.66%
Median
4.08%
Q1
0.00%
Min
-11.02%
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Amphenol (APH) vs. Teledyne (TDY): A comparison of their net margin against the Technology Hardware & Equipment industry group benchmark.

Operating Margin (TTM)

Both Amphenol (APH) at 29.68% and Teledyne (TDY) at 20.76% 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%

TDY

Technology Hardware & Equipment industry group

20.76%

Max
36.27%
TDY
20.76%
Q3
18.36%
Median
8.84%
Q1
1.46%
Min
-21.39%
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Amphenol (APH) vs. Teledyne (TDY): A comparison of their operating margin against the Technology Hardware & Equipment industry group benchmark.

Profitability Metrics

Profitability metrics for Amphenol (APH) and Teledyne (TDY)
MetricAPHTDY
ROE (TTM)40.08%9.47%
ROA (TTM)16.00%5.31%
Net Margin (TTM)17.95%15.75%
Operating Margin (TTM)29.68%20.76%
Gross Margin (TTM)39.21%43.60%

Growth

Revenue Growth

Amphenol (APH) at 51.71% sits in the top revenue growth quartile, while Teledyne (TDY) at 7.86% is closer to the peer norm — faster top-line expansion for APH.

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Amphenol (APH) vs. Teledyne (TDY): 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 Teledyne (TDY) at 9.70% is closer to the peer norm — faster per-share earnings growth for APH.

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

Growth Metrics

Growth metrics for Amphenol (APH) and Teledyne (TDY)
MetricAPHTDY
Revenue Growth (YoY)51.71%7.86%
Revenue Growth (3Y CAGR)22.31%3.86%
EPS Growth (YoY)73.96%9.70%
EPS Growth (3Y CAGR)29.72%4.53%

Financial Strength

Current Ratio (MRQ)

Both Amphenol (APH) at 1.94 and Teledyne (TDY) at 2.31 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

TDY

Technology Hardware & Equipment industry group

2.31

Max
5.34
Q3
3.02
TDY
2.31
Median
1.95
Q1
1.32
Min
0.17
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Amphenol (APH) vs. Teledyne (TDY): A comparison of their current ratio against the Technology Hardware & Equipment industry group benchmark.

Debt / Equity (MRQ)

Teledyne (TDY) at 0.18 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

TDY

Technology Hardware & Equipment industry group

0.18

Max
1.76
Q3
0.78
Median
0.24
TDY
0.18
Q1
0.04
Min
0.01
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Amphenol (APH) vs. Teledyne (TDY): 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 Teledyne (TDY)
MetricAPHTDY
Current Ratio (MRQ)1.942.31
Debt / Equity (MRQ)1.030.18
Net Debt / EBITDA1.150.88

Dividends

Dividend Yield (TTM)

Teledyne (TDY) 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%

TDY

Technology Hardware & Equipment industry group

0.00%

Max
0.73%
Q3
0.31%
TDY
0.00%
Median
0.00%
Q1
0.00%
Min
0.00%
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Amphenol (APH) vs. Teledyne (TDY): A comparison of their dividend yield against the Technology Hardware & Equipment industry group benchmark.

Dividend Payout Ratio (TTM)

Teledyne (TDY) 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%

TDY

Technology Hardware & Equipment industry group

0.00%

Max
32.27%
Q3
14.48%
TDY
0.00%
Median
0.00%
Q1
0.00%
Min
0.00%
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Amphenol (APH) vs. Teledyne (TDY): A comparison of their payout ratio against the Technology Hardware & Equipment industry group benchmark.

Dividend Metrics

Dividend metrics for Amphenol (APH) and Teledyne (TDY)
MetricAPHTDY
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 Teledyne (TDY) at 28.32 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

TDY

Technology Hardware & Equipment industry group

28.32

Max
69.48
Q3
41.02
TDY
28.32
Median
26.39
Q1
19.36
Min
6.07
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Amphenol (APH) vs. Teledyne (TDY): 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 Teledyne (TDY) at 4.40 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

TDY

Technology Hardware & Equipment industry group

4.40

Max
11.30
Q3
5.82
TDY
4.40
Median
2.56
Q1
1.05
Min
0.00
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Amphenol (APH) vs. Teledyne (TDY): A comparison of their P/S ratio against the Technology Hardware & Equipment industry group benchmark.

P/B Ratio (MRQ)

Teledyne (TDY) at 2.57 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

TDY

Technology Hardware & Equipment industry group

2.57

Max
10.75
Q3
5.52
Median
3.17
TDY
2.57
Q1
1.79
Min
0.33
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Amphenol (APH) vs. Teledyne (TDY): A comparison of their P/B ratio against the Technology Hardware & Equipment industry group benchmark.

Valuation Metrics

Valuation metrics for Amphenol (APH) and Teledyne (TDY)
MetricAPHTDY
P/E Ratio (TTM)32.4328.32
P/S Ratio (TTM)5.574.40
P/B Ratio (MRQ)10.752.57
Free Cash Flow Yield (TTM)2.33%3.33%