APH vs. UI: Amphenol vs. Ubiquiti Stock Comparison

November 11, 2026

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

Company profile comparison for Amphenol (APH) and Ubiquiti (UI)
Profile Item	APH	UI
Name	Amphenol Corp. Class A Common Stock	Ubiquiti 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	184.18 billion USD	35.85 billion USD
Currency	USD	USD
Exchange	NYSE	NYSE
Listing Date	November 8, 1991	October 14, 2011
Security Type	Common Stock	Common Stock

Price Performance

Cumulative Growth

APH

GSPC

Amphenol (APH) vs. Ubiquiti (UI), 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 Ubiquiti (UI). Returns over one year are annualized.

Calendar-Year Returns

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

Performance Metrics

Price performance metrics for Amphenol (APH) and Ubiquiti (UI)
Metric	APH	UI
Total Return (1Y)	15.56%	8.54%
Total Return (3Y, Annualized)	56.62%	85.98%
Total Return (5Y, Annualized)	32.33%	18.26%

Risk Profile

Drawdown History

APH

GSPC

Amphenol (APH) vs. Ubiquiti (UI), 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 Ubiquiti (UI). 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 Ubiquiti (UI) sees a more moderate 133.04K — larger orders in the latter may require more patience and tighter control over order sizing.

Risk profile metrics for Amphenol (APH) and Ubiquiti (UI)
Metric	APH	UI
Volatility (1Y, Annualized)	48.51%	53.12%
Beta (5Y)	1.27	1.29
Max Drawdown (5Y)	-28.73%	-69.44%
Avg. Volume (3M)	12.40M	133.04K

Risk-Adjusted Performance

Risk-Return Positioning

APH and UI 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 Ubiquiti (UI)
Metric	APH	UI
Sharpe Ratio (1Y)	0.23	0.08
Sortino Ratio (1Y)	0.32	0.12

Profitability

ROE (TTM)

Both companies show strong equity returns, but Ubiquiti (UI) at 91.09% is the standout with ROE above its industry range; Amphenol (APH) at 40.08% also sits in the top quartile.

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%

UI

Technology Hardware & Equipment industry group

91.09%

UI: 91.09%
Max: 42.47%
Q3: 19.13%
Median: 11.00%
Q1: 1.63%
Min: -20.62%

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

Net Margin (TTM)

Ubiquiti (UI) at 29.33% keeps the most of each sales dollar — above its industry’s net margin range — and Amphenol (APH) at 17.95% also retains a top-quartile 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%

UI

Technology Hardware & Equipment industry group

29.33%

UI: 29.33%
Max: 27.60%
Q3: 11.66%
Median: 4.08%
Q1: 0.00%
Min: -11.02%

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

Operating Margin (TTM)

Both Amphenol (APH) at 29.68% and Ubiquiti (UI) at 36.27% 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%

UI

Technology Hardware & Equipment industry group

36.27%

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

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

Profitability Metrics

Profitability metrics for Amphenol (APH) and Ubiquiti (UI)
Metric	APH	UI
ROE (TTM)	40.08%	91.09%
ROA (TTM)	16.00%	40.44%
Net Margin (TTM)	17.95%	29.33%
Operating Margin (TTM)	29.68%	36.27%
Gross Margin (TTM)	39.21%	46.16%

Growth

Revenue Growth

Amphenol (APH) at 51.71% sits in the top revenue growth quartile, while Ubiquiti (UI) at 27.22% is closer to the peer norm — faster top-line expansion for APH.

Amphenol (APH) vs. Ubiquiti (UI): 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 Ubiquiti (UI) at 34.78% is closer to the peer norm — faster per-share earnings growth for APH.

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

Growth Metrics

Growth metrics for Amphenol (APH) and Ubiquiti (UI)
Metric	APH	UI
Revenue Growth (YoY)	51.71%	27.22%
Revenue Growth (3Y CAGR)	22.31%	19.05%
EPS Growth (YoY)	73.96%	34.78%
EPS Growth (3Y CAGR)	29.72%	32.98%

Financial Strength

Current Ratio (MRQ)

Both Amphenol (APH) at 1.94 and Ubiquiti (UI) at 2.93 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

UI

Technology Hardware & Equipment industry group

2.93

Max: 5.34
Q3: 3.02
UI: 2.93
Median: 1.95
Q1: 1.32
Min: 0.17

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

Debt / Equity (MRQ)

Ubiquiti (UI) at 0.06 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

UI

Technology Hardware & Equipment industry group

0.06

Max: 1.76
Q3: 0.78
Median: 0.24
UI: 0.06
Q1: 0.04
Min: 0.01

Amphenol (APH) vs. Ubiquiti (UI): 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 Ubiquiti (UI)
Metric	APH	UI
Current Ratio (MRQ)	1.94	2.93
Debt / Equity (MRQ)	1.03	0.06
Net Debt / EBITDA	1.15	-0.44

Dividends

Dividend Yield (TTM)

Ubiquiti (UI) 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%

UI

Technology Hardware & Equipment industry group

0.00%

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

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

Dividend Payout Ratio (TTM)

Both Amphenol (APH) at 21.74% and Ubiquiti (UI) at 20.19% pay out an above-typical share of earnings for their industries, leaving thinner cover if profits dip.

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%

UI

Technology Hardware & Equipment industry group

20.19%

Max: 32.27%
UI: 20.19%
Q3: 14.48%
Median: 0.00%
Q1: 0.00%
Min: 0.00%

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

Dividend Metrics

Dividend metrics for Amphenol (APH) and Ubiquiti (UI)
Metric	APH	UI
Dividend Yield (TTM)	0.70%	0.00%
Dividend Payout Ratio (TTM)	21.74%	20.19%

Valuation

P/E Ratio (TTM)

Both Amphenol (APH) at 32.43 and Ubiquiti (UI) at 33.47 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

UI

Technology Hardware & Equipment industry group

33.47

Max: 69.48
Q3: 41.02
UI: 33.47
Median: 26.39
Q1: 19.36
Min: 6.07

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

P/S Ratio (TTM)

Amphenol (APH) at 5.57 is priced about in line with its industry on P/S ratio, while Ubiquiti (UI) at 10.95 sits in the pricier quartile — UI costs more per dollar of sales.

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

UI

Technology Hardware & Equipment industry group

10.95

Max: 11.30
UI: 10.95
Q3: 5.82
Median: 2.56
Q1: 1.05
Min: 0.00

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

P/B Ratio (MRQ)

Both look rich against book: Amphenol (APH) at 10.75 sits in the upper P/B ratio quartile, and Ubiquiti (UI) at 24.91 prices even higher, above its industry range.

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

UI

Technology Hardware & Equipment industry group

24.91

UI: 24.91
Max: 10.75
Q3: 5.52
Median: 3.17
Q1: 1.79
Min: 0.33

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

Valuation Metrics

Valuation metrics for Amphenol (APH) and Ubiquiti (UI)
Metric	APH	UI
P/E Ratio (TTM)	32.43	33.47
P/S Ratio (TTM)	5.57	10.95
P/B Ratio (MRQ)	10.75	24.91
Free Cash Flow Yield (TTM)	2.33%	1.98%