ALAB vs. APH: Astera Labs vs. Amphenol Stock Comparison
How do Astera Labs (ALAB) and Amphenol (APH) 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
Astera Labs (ALAB) and Amphenol (APH) share the Information Technology sector but sit in different industry groups — ALAB in Semiconductors & Semiconductor Equipment and APH in Technology Hardware & Equipment.
Amphenol (APH) carries decades of public-market history since November 8, 1991, while Astera Labs (ALAB) listed on March 20, 2024 — long-window comparisons have far more historical data on the APH side.
| Profile Item | ALAB | APH |
|---|---|---|
| Name | Astera Labs, Inc. | Amphenol Corp. Class A Common Stock |
| Country/Region | United States | United States |
| GICS Sector | Information Technology | Information Technology |
| GICS Industry Group | Semiconductors & Semiconductor Equipment | Technology Hardware & Equipment |
| GICS Industry | Semiconductors & Semiconductor Equipment | Electronic Equipment, Instruments & Components |
| GICS Sub-Industry | Semiconductors | Electronic Components |
| Market Capitalization | 33.33 billion USD | 184.18 billion USD |
| Currency | USD | USD |
| Exchange | Nasdaq | NYSE |
| Listing Date | March 20, 2024 | November 8, 1991 |
| Security Type | Common Stock | Common Stock |
Price Performance
Cumulative Growth
Trailing Returns
Calendar-Year Returns
Performance Metrics
| Metric | ALAB | APH |
|---|---|---|
| Total Return (1Y) | 31.42% | 15.56% |
| Total Return (3Y, Annualized) | -- | 56.62% |
| Total Return (5Y, Annualized) | -- | 32.33% |
Risk Profile
Drawdown History
Return Distribution
Risk Metrics
Astera Labs (ALAB) carries a highly aggressive beta of 3.95, indicating much higher sensitivity to broad-market moves, whereas Amphenol (APH) is closer to market-like at 1.27 — a noticeable difference in market-sensitivity profile.
| Metric | ALAB | APH |
|---|---|---|
| Volatility (1Y, Annualized) | 101.55% | 48.51% |
| Beta (5Y) | 3.95 | 1.27 |
| Max Drawdown (5Y) | -63.69% | -28.73% |
| Avg. Volume (3M) | 4.15M | 12.40M |
Risk-Adjusted Performance
Risk-Return Positioning
Risk-Adjusted Metrics
| Metric | ALAB | APH |
|---|---|---|
| Sharpe Ratio (1Y) | 0.27 | 0.23 |
| Sortino Ratio (1Y) | 0.39 | 0.32 |
Profitability
ROE (TTM)
Both Astera Labs (ALAB) at 28.21% and Amphenol (APH) at 40.08% sit in the top peer quartile for ROE, suggesting each generates more profit from shareholders’ equity than typical industry peers.
ALAB
Semiconductors & Semiconductor Equipment industry group
28.21%
- Max
- 52.82%
- ALAB
- 28.21%
- Q3
- 22.26%
- Median
- 10.58%
- Q1
- 1.29%
- Min
- -16.89%
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%
Net Margin (TTM)
For every dollar of sales, both Astera Labs (ALAB) at 29.64% and Amphenol (APH) at 17.95% retain more as net profit than most peers, landing in the top net margin quartile of their industries.
ALAB
Semiconductors & Semiconductor Equipment industry group
29.64%
- Max
- 63.80%
- ALAB
- 29.64%
- Q3
- 28.36%
- Median
- 11.44%
- Q1
- 0.90%
- Min
- -37.77%
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%
Operating Margin (TTM)
Both Astera Labs (ALAB) at 30.61% and Amphenol (APH) at 29.68% convert sales into operating profit at a top-quartile rate, pointing to tighter cost discipline before financing and tax.
ALAB
Semiconductors & Semiconductor Equipment industry group
30.61%
- Max
- 58.66%
- ALAB
- 30.61%
- Q3
- 30.23%
- Median
- 15.91%
- Q1
- 7.54%
- Min
- -25.74%
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%
Profitability Metrics
| Metric | ALAB | APH |
|---|---|---|
| ROE (TTM) | 28.21% | 40.08% |
| ROA (TTM) | 13.41% | 16.00% |
| Net Margin (TTM) | 29.64% | 17.95% |
| Operating Margin (TTM) | 30.61% | 29.68% |
| Gross Margin (TTM) | 73.89% | 39.21% |
Growth
Revenue Growth
Both companies are growing quickly, but Astera Labs (ALAB) at 115.13% is the standout with revenue growth above its industry range; Amphenol (APH) at 51.71% also sits in the top quartile.
EPS Growth
Only one side can be read here: Amphenol (APH) reports EPS growth of 73.96%, ranked against its industry; Astera Labs (ALAB) has no EPS growth figure this period.
Growth Metrics
| Metric | ALAB | APH |
|---|---|---|
| Revenue Growth (YoY) | 115.13% | 51.71% |
| Revenue Growth (3Y CAGR) | 120.18% | 22.31% |
| EPS Growth (YoY) | -- | 73.96% |
| EPS Growth (3Y CAGR) | -- | 29.72% |
Financial Strength
Current Ratio (MRQ)
Amphenol (APH) at 1.94 keeps current ratio within its industry’s typical mid-range, while Astera Labs (ALAB) at 8.03 sits above its industry’s typical mid-range — comfortable liquidity, though possibly with more idle current assets relative to peers.
ALAB
Semiconductors & Semiconductor Equipment industry group
8.03
- Max
- 10.33
- ALAB
- 8.03
- Q3
- 5.62
- Median
- 3.33
- Q1
- 2.35
- Min
- 1.03
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
Debt / Equity (MRQ)
Astera Labs (ALAB) at 0.02 keeps leverage in the lower quartile, while Amphenol (APH) at 1.03 sits in the higher-leverage quartile.
ALAB
Semiconductors & Semiconductor Equipment industry group
0.02
- Max
- 1.46
- Q3
- 0.65
- Median
- 0.27
- Q1
- 0.04
- ALAB
- 0.02
- Min
- 0.00
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
Financial Strength Metrics
| Metric | ALAB | APH |
|---|---|---|
| Current Ratio (MRQ) | 8.03 | 1.94 |
| Debt / Equity (MRQ) | 0.02 | 1.03 |
| Net Debt / EBITDA | -3.23 | 1.15 |
Dividends
Dividend Yield (TTM)
Astera Labs (ALAB) 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.
ALAB
Semiconductors & Semiconductor Equipment industry group
0.00%
- Max
- 1.37%
- Q3
- 0.65%
- ALAB
- 0.00%
- Median
- 0.00%
- Q1
- 0.00%
- Min
- 0.00%
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%
Dividend Payout Ratio (TTM)
Astera Labs (ALAB) 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.
ALAB
Semiconductors & Semiconductor Equipment industry group
0.00%
- Max
- 49.64%
- Q3
- 21.71%
- ALAB
- 0.00%
- Median
- 0.00%
- Q1
- 0.00%
- Min
- 0.00%
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%
Dividend Metrics
| Metric | ALAB | APH |
|---|---|---|
| Dividend Yield (TTM) | 0.00% | 0.70% |
| Dividend Payout Ratio (TTM) | 0.00% | 21.74% |
Valuation
P/E Ratio (TTM)
Amphenol (APH) at 32.43 is near its industry’s usual P/E ratio, while Astera Labs (ALAB) at 75.38 sits in the richer quartile — ALAB needs stronger growth or earnings quality to justify the premium.
ALAB
Semiconductors & Semiconductor Equipment industry group
75.38
- Max
- 110.34
- ALAB
- 75.38
- Q3
- 66.81
- Median
- 37.02
- Q1
- 23.96
- Min
- 8.12
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
P/S Ratio (TTM)
Amphenol (APH) at 5.57 is priced about in line with its industry on P/S ratio, while Astera Labs (ALAB) at 21.42 sits in the pricier quartile — ALAB costs more per dollar of sales.
ALAB
Semiconductors & Semiconductor Equipment industry group
21.42
- ALAB
- 21.42
- Max
- 21.42
- Q3
- 12.27
- Median
- 5.76
- Q1
- 2.73
- Min
- 0.00
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
P/B Ratio (MRQ)
Both look rich against book: Amphenol (APH) at 10.75 sits in the upper P/B ratio quartile, and Astera Labs (ALAB) at 16.67 prices even higher, above its industry range.
ALAB
Semiconductors & Semiconductor Equipment industry group
16.67
- ALAB
- 16.67
- Max
- 14.06
- Q3
- 7.44
- Median
- 4.29
- Q1
- 2.30
- Min
- 0.20
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
Valuation Metrics
| Metric | ALAB | APH |
|---|---|---|
| P/E Ratio (TTM) | 75.38 | 32.43 |
| P/S Ratio (TTM) | 21.42 | 5.57 |
| P/B Ratio (MRQ) | 16.67 | 10.75 |
| Free Cash Flow Yield (TTM) | 0.39% | 2.33% |