APH vs. CIEN: Amphenol vs. Ciena Stock Comparison
How do Amphenol (APH) and Ciena (CIEN) 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 Ciena (CIEN) both fall under the Technology Hardware & Equipment industry group, but APH is classified in Electronic Equipment, Instruments & Components while CIEN is classified in Communications Equipment.
| Profile Item | APH | CIEN |
|---|---|---|
| Name | Amphenol Corp. Class A Common Stock | Ciena Corp. |
| 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 | 34.51 billion USD |
| Currency | USD | USD |
| Exchange | NYSE | NYSE |
| Listing Date | November 8, 1991 | February 7, 1997 |
| Security Type | Common Stock | Common Stock |
Price Performance
Cumulative Growth
Trailing Returns
Calendar-Year Returns
Performance Metrics
| Metric | APH | CIEN |
|---|---|---|
| Total Return (1Y) | 15.56% | 36.49% |
| Total Return (3Y, Annualized) | 56.62% | 84.56% |
| Total Return (5Y, Annualized) | 32.33% | 35.01% |
Risk Profile
Drawdown History
Return Distribution
Risk Metrics
| Metric | APH | CIEN |
|---|---|---|
| Volatility (1Y, Annualized) | 48.51% | 81.12% |
| Beta (5Y) | 1.27 | 1.39 |
| Max Drawdown (5Y) | -28.73% | -63.19% |
| Avg. Volume (3M) | 12.40M | 2.83M |
Risk-Adjusted Performance
Risk-Return Positioning
Risk-Adjusted Metrics
| Metric | APH | CIEN |
|---|---|---|
| Sharpe Ratio (1Y) | 0.23 | 0.40 |
| Sortino Ratio (1Y) | 0.32 | 0.56 |
Profitability
ROE (TTM)
Both Amphenol (APH) at 40.08% and Ciena (CIEN) at 22.40% 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
40.08%
- Max
- 42.47%
- APH
- 40.08%
- Q3
- 19.13%
- Median
- 11.00%
- Q1
- 1.63%
- Min
- -20.62%
CIEN
Technology Hardware & Equipment industry group
22.40%
- Max
- 42.47%
- CIEN
- 22.40%
- Q3
- 19.13%
- Median
- 11.00%
- Q1
- 1.63%
- Min
- -20.62%
Net Margin (TTM)
Amphenol (APH) at 17.95% retains a top-quartile share of revenue as profit, ahead of Ciena (CIEN) at 10.87%, which keeps about the industry-typical 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%
CIEN
Technology Hardware & Equipment industry group
10.87%
- Max
- 27.60%
- Q3
- 11.66%
- CIEN
- 10.87%
- Median
- 4.08%
- Q1
- 0.00%
- Min
- -11.02%
Operating Margin (TTM)
Amphenol (APH) at 29.68% operates in the top operating margin quartile, ahead of Ciena (CIEN) at 18.08%, which runs around its industry’s norm.
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%
CIEN
Technology Hardware & Equipment industry group
18.08%
- Max
- 36.27%
- Q3
- 18.36%
- CIEN
- 18.08%
- Median
- 8.84%
- Q1
- 1.46%
- Min
- -21.39%
Profitability Metrics
| Metric | APH | CIEN |
|---|---|---|
| ROE (TTM) | 40.08% | 22.40% |
| ROA (TTM) | 16.00% | 7.73% |
| Net Margin (TTM) | 17.95% | 10.87% |
| Operating Margin (TTM) | 29.68% | 18.08% |
| Gross Margin (TTM) | 39.21% | 44.07% |
Growth
Revenue Growth
Amphenol (APH) at 51.71% sits in the top revenue growth quartile, while Ciena (CIEN) at 18.79% is closer to the peer norm — faster top-line expansion for APH.
EPS Growth
Both Amphenol (APH) at 73.96% and Ciena (CIEN) at 46.55% sit in the top peer quartile for EPS growth, so each is compounding per-share earnings faster than typical industry peers.
Growth Metrics
| Metric | APH | CIEN |
|---|---|---|
| Revenue Growth (YoY) | 51.71% | 18.79% |
| Revenue Growth (3Y CAGR) | 22.31% | 9.50% |
| EPS Growth (YoY) | 73.96% | 46.55% |
| EPS Growth (3Y CAGR) | 29.72% | -5.27% |
Financial Strength
Current Ratio (MRQ)
Amphenol (APH) at 1.94 keeps current ratio within its industry’s typical mid-range, while Ciena (CIEN) at 3.80 sits above its industry’s typical mid-range — comfortable liquidity, though possibly with more idle current assets 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
CIEN
Technology Hardware & Equipment industry group
3.80
- Max
- 5.34
- CIEN
- 3.80
- Q3
- 3.02
- Median
- 1.95
- Q1
- 1.32
- Min
- 0.17
Debt / Equity (MRQ)
Both Amphenol (APH) at 1.03 and Ciena (CIEN) at 1.07 lean more heavily on debt funding than most peers, landing in the higher-leverage quartile of their industries.
APH
Technology Hardware & Equipment industry group
1.03
- Max
- 1.76
- APH
- 1.03
- Q3
- 0.78
- Median
- 0.24
- Q1
- 0.04
- Min
- 0.01
CIEN
Technology Hardware & Equipment industry group
1.07
- Max
- 1.76
- CIEN
- 1.07
- Q3
- 0.78
- Median
- 0.24
- Q1
- 0.04
- Min
- 0.01
Financial Strength Metrics
| Metric | APH | CIEN |
|---|---|---|
| Current Ratio (MRQ) | 1.94 | 3.80 |
| Debt / Equity (MRQ) | 1.03 | 1.07 |
| Net Debt / EBITDA | 1.15 | 0.64 |
Dividends
Dividend Yield (TTM)
Ciena (CIEN) 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%
CIEN
Technology Hardware & Equipment industry group
0.00%
- Max
- 0.73%
- Q3
- 0.31%
- CIEN
- 0.00%
- Median
- 0.00%
- Q1
- 0.00%
- Min
- 0.00%
Dividend Payout Ratio (TTM)
Ciena (CIEN) 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%
CIEN
Technology Hardware & Equipment industry group
0.00%
- Max
- 32.27%
- Q3
- 14.48%
- CIEN
- 0.00%
- Median
- 0.00%
- Q1
- 0.00%
- Min
- 0.00%
Dividend Metrics
| Metric | APH | CIEN |
|---|---|---|
| Dividend Yield (TTM) | 0.70% | 0.00% |
| Dividend Payout Ratio (TTM) | 21.74% | 0.00% |
Valuation
P/E Ratio (TTM)
Amphenol (APH) at 32.43 is near its industry’s usual P/E ratio, while Ciena (CIEN) at 54.45 sits in the richer quartile — CIEN 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
CIEN
Technology Hardware & Equipment industry group
54.45
- Max
- 69.48
- CIEN
- 54.45
- Q3
- 41.02
- Median
- 26.39
- Q1
- 19.36
- Min
- 6.07
P/S Ratio (TTM)
On P/S ratio, both Amphenol (APH) at 5.57 and Ciena (CIEN) at 5.73 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
CIEN
Technology Hardware & Equipment industry group
5.73
- Max
- 11.30
- Q3
- 5.82
- CIEN
- 5.73
- Median
- 2.56
- Q1
- 1.05
- Min
- 0.00
P/B Ratio (MRQ)
Both look rich against book: Amphenol (APH) at 10.75 sits in the upper P/B ratio quartile, and Ciena (CIEN) at 11.30 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
CIEN
Technology Hardware & Equipment industry group
11.30
- CIEN
- 11.30
- Max
- 10.75
- Q3
- 5.52
- Median
- 3.17
- Q1
- 1.79
- Min
- 0.33
Valuation Metrics
| Metric | APH | CIEN |
|---|---|---|
| P/E Ratio (TTM) | 32.43 | 54.45 |
| P/S Ratio (TTM) | 5.57 | 5.73 |
| P/B Ratio (MRQ) | 10.75 | 11.30 |
| Free Cash Flow Yield (TTM) | 2.33% | 1.84% |