AMBA vs SIMO vs ALAB Stock Comparison

Ambarella, Silicon Motion Technology and Astera Labs Prices as of Oct 26, 2026 Peers: Industry group
1 more company in this comparison (AMD) Create a free account to keep reading and compare up to 10 companies.
AMBA Ambarella Inc
$66.82 -8.1% 1M -22.0% 1Y
Market cap
$2.96B
P/E
–
Revenue (TTM)
$417.80M
Div. yield
–
Semiconductor Design Technology
1 win
ALAB Astera Labs, Inc.
$259.51 -28.8% 1M +57.3% 1Y
Market cap
$49.46B
P/E
133.9x
Revenue (TTM)
$1.20B
Div. yield
–
Semiconductor Design Technology
4 wins

Head to Head

8 decided of 12

Astera Labs leads on 4 of the 12 questions below (Astera Labs 4, Silicon Motion Technology 3, Ambarella 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionAMBASIMOALABLeader
Larger companyMarket capitalisation $2.96B $6.86B $49.46B ALAB
Cheaper on earningsLower P/E, profitable companies only -52.5x — 133.9x –
Cheaper on forward earningsLower price / next fiscal year consensus EPS 86.8x 16.5x 69.6x SIMO
Faster revenue growthRevenue growth, trailing twelve months +20.0% — +98.5% ALAB
More profitableNet margin, trailing twelve months -13.5% — 30.7% ALAB
Better return on capitalReturn on invested capital — — — –
Less leveragedLower net debt / EBITDA — — — –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months -22.0% +90.8% +57.3% SIMO
Better 5-year returnAnnualised price return, 5 years -18.1%/yr +21.4%/yr — SIMO
Less volatileAnnualised volatility, 1 year 74.6% 84.2% 98.5% AMBA
Higher overall scoreMean of the five percentile scores vs peers 40/100 35/100 61/100 ALAB

Percentile Scorecard

AMBASIMOALAB

Each axis is the mean percentile of its metrics against the company's industry group. 100 is the best in the group, 50 the middle.

Scores by Axis

AxisAMBASIMOALAB
Valuation 31 #66 of 95 12 #84 of 95 9 #87 of 95
Growth 55 #42 of 93 26 #69 of 93 91 #9 of 93
Profitability 26 #68 of 91 – 79 #20 of 91
Financial Health 59 #42 of 101 36 #65 of 101 92 #9 of 101
Shareholder Returns 31 #52 of 75 66 #26 of 75 35 #49 of 75
Overall 40 35 61
  • AMBA ranked among 104 companies in Semiconductors
  • SIMO ranked among 104 companies in Semiconductors
  • ALAB ranked among 104 companies in Semiconductors

Price Performance

Price return, split-adjusted, before dividends. Click a name to hide or show it.

Returns

PeriodAMBASIMOALABSPY
1 month -8.1%-31.5%-28.8% -0.8%
3 months -2.1%-22.6%-8.1% +3.5%
6 months +3.0%+28.2%+32.0% +7.0%
Year to date -5.7%+104.1%+56.0% +12.2%
1 year -22.0%+90.8%+57.3% +13.0%
3 years +42.8%+259.4%— +86.3%
3 years, per year +12.6%+53.2%— +23.1%
5 years -63.2%+163.6%— +68.6%
5 years, per year -18.1%+21.4%— +11.0%
10 years +6.9%+305.8%— +258.0%
10 years, per year +0.7%+15.0%— +13.6%

Risk

MeasureAMBASIMOALABSPY
Volatility, 1Y 74.6%84.2%98.5% 12.7%
Downside volatility, 1Y 79.6%78.0%100.9% 12.7%
Beta vs S&P 500, 1Y 2.612.403.89 1.00
Return / volatility, 1Y -0.291.080.58 1.02
Max drawdown, 5Y -81.7%-59.1%-63.7% -25.4%
From 52-week high -30.0%-43.8%-46.3% -1.8%
52-week high $95.51$336.90$483.02 $779.14
52-week low $48.65$80.16$100.27 $631.97

Valuation History

Weekly multiples on trailing twelve-month fundamentals. Negative or extreme readings (a loss year, a collapsed denominator) are left out so the chart stays readable.

MultipleAMBASIMOALAB
P/E now vs peer median -52.2xmedian 42.1x —median 42.1x 121.1xmedian 42.1x
P/S now vs peer median 7.1xmedian 7.1x —median 7.1x 37.5xmedian 7.1x
EV/EBITDA now vs peer median -72.0xmedian 27.5x —median 27.5x 153.4xmedian 27.5x
P/FCF now vs peer median 303.4xmedian 37.2x -494.0xmedian 37.2x 162.7xmedian 37.2x
P/B now vs peer median 4.8xmedian 4.2x 6.1xmedian 4.2x 26.1xmedian 4.2x
PEG now vs peer median -2.66median 2.23 —median 2.23 —median 2.23

Financial History

Reported figures by fiscal period, placed on the calendar year (or quarter) each period ended in, so companies with different fiscal years line up.

Trailing twelve monthsAMBASIMOALAB
Revenue $417.80M – $1.20B
Gross profit $244.50M – $903.00M
Operating income -$62.24M – $273.45M
Net income -$56.32M $289.77M $369.49M
Free cash flow $9.72M -$12.85M $276.68M
R&D $228.69M – $434.25M
EPS (diluted) $-1.28 – $2.02
Cash & equivalents $101.85M $74.37M $111.45M
Total debt – $167.29M –
Shares (diluted) 44.01M 33.68M 183.34M
Enterprise value $1.80B $6.25B $44.70B

All Metrics

58 metrics · best in bold

Bold marks the best reading: the lowest positive value for multiples, leverage and payout, the highest for everything else. The bar under each value is its percentile against that company's own peers. Hover a value for its rank and the peer median.

Valuation

12 metrics
MetricAMBASIMOALAB
P/E -52.2x – 121.1x
P/FCF 303.4x -494.0x 162.7x
P/Operating cash flow 107.9x -95.2x 134.1x
P/S 7.1x – 37.5x
P/B 4.8x 6.1x 26.1x
P/Tangible book 5.2x 6.6x 26.1x
EV/EBITDA -72.0x – 153.4x
EV/EBIT -43.0x – 160.1x
EV/Revenue 6.4x – 36.4x
EV/FCF 275.4x -492.8x 158.2x
EV/Operating cash flow 98.0x -95.0x 130.4x
PEG (3Y EPS CAGR) -2.66 – –

Growth

14 metrics
MetricAMBASIMOALAB
Revenue growth (1Y) 20.0% – 98.5%
Revenue CAGR (3Y) 12.9% – –
Gross profit growth (1Y) 17.4% – 97.5%
Gross profit CAGR (3Y) 11.3% – –
Operating income growth (1Y) 36.9% – 546.3%
Operating income CAGR (3Y) 18.4% – –
Net income growth (1Y) 36.4% 270.6% 268.9%
Net income CAGR (3Y) 16.9% 49.0% –
EPS growth (1Y) 38.6% – 258.4%
EPS CAGR (3Y) 19.6% – –
Operating cash flow growth (1Y) -47.8% -182.4% 34.8%
Operating cash flow CAGR (3Y) 1.3% -36.3% –
Free cash flow growth (1Y) -73.7% -109.8% 31.5%
Free cash flow CAGR (3Y) -5.8% -27.6% –

Profitability

14 metrics
MetricAMBASIMOALAB
Gross margin 58.5% – 75.1%
EBITDA margin -8.9% – 23.7%
Operating margin -14.9% – 22.8%
Pretax margin -12.9% – 26.8%
Net margin -13.5% – 30.7%
FCF margin 2.3% – 23.0%
Operating cash flow margin 6.5% – 27.9%
Return on equity -9.2% – 23.0%
Return on assets -7.2% – 20.6%
Return on invested capital – – –
Return on capital employed -9.6% – 16.8%
Asset turnover 0.5x – 0.7x
Cash conversion (OCF / net income) -0.5x -0.2x 0.9x
Stock comp / revenue 21.9% – 16.2%

Financial Health

11 metrics
MetricAMBASIMOALAB
Debt / assets – 3.7% –
Debt / equity – 0.1x –
Net debt / EBITDA – – –
Debt / FCF – -4.6x –
Liabilities / assets 20.5% 34.8% 10.7%
Equity / assets 79.5% 65.2% 89.3%
Interest coverage – – –
Current ratio 2.8x 2.5x 10.1x
Quick ratio 2.2x 0.8x 8.8x
Cash ratio 2.0x 0.2x 7.6x
Altman Z-score 11.10 – 133.45

Shareholder Returns

7 metrics
MetricAMBASIMOALAB
Dividend yield – 1.1% –
Net buyback yield -0.1% – 0.0%
Shareholder yield -0.1% 1.1% 0.0%
Payout ratio (earnings) – – –
Payout ratio (FCF) – – –
Dividend growth (1Y) – – –
Dividend CAGR (3Y) – – –

Analyst Estimates

Solid lines are reported fiscal-year results; dashed lines are the consensus for the years ahead. Hover a year for the analysts' high and low, and how each result compared with its estimate.

ConsensusAMBASIMOALAB
Forward P/E 86.8xFY2026 16.5xFY2026 69.6xFY2026
EPS, next fiscal year $0.77FY2026 $11.50FY2026 $3.73FY2026
EPS growth, next FY +24.2%FY2026 +223.9%FY2026 +102.7%FY2026
EPS growth, the year after +40.3% +37.5% +64.9%
Revenue, next fiscal year $454.23MFY2026 $1.82BFY2026 $2.01BFY2026
Revenue growth, next FY +16.3%FY2026 +105.0%FY2026 +135.3%FY2026
Revenue growth, the year after +3.4% +27.4% +46.5%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersAMBASIMOALAB
Held by institutions 81.7% 72.4% 73.6%
Institutions holding 337 380 986
Change in shares held, QoQ -1.5% -9.8% +5.8%
Institutions buying 203 223 660
Institutions selling 89 131 253
Buyers to sellers 2.28 1.70 2.61

Return Correlation

Daily returns, last 12 months

1.00 means two stocks move in lockstep, 0 that they move independently. Pairs below about 0.5 diversify each other.

AMBASIMOALAB
AMBA 1.00 0.34 0.40
SIMO 0.34 1.00 0.53
ALAB 0.40 0.53 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, AMBA, SIMO and ALAB?

Astera Labs (ALAB) is the largest by market capitalisation: Ambarella (AMBA) $2.96B, Silicon Motion Technology (SIMO) $6.86B, Astera Labs (ALAB) $49.46B.

Which company is growing faster?

Astera Labs (ALAB) grew revenue fastest over the trailing twelve months: Ambarella (AMBA) +20.0%, Astera Labs (ALAB) +98.5%.

Which company is more profitable?

Astera Labs (ALAB) has the highest net margin (Ambarella (AMBA) -13.5%, Astera Labs (ALAB) 30.7%).

Which stock has performed better?

Over the past year Silicon Motion Technology (SIMO) returned the most: Ambarella (AMBA) -22.0%, Silicon Motion Technology (SIMO) +90.8%, Astera Labs (ALAB) +57.3%. Over five years, Silicon Motion Technology (SIMO) compounded fastest (Ambarella (AMBA) -18.1%/yr, Silicon Motion Technology (SIMO) +21.4%/yr). Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, Ambarella (AMBA) has been the steadiest (Ambarella (AMBA) 74.6%, Silicon Motion Technology (SIMO) 84.2%, Astera Labs (ALAB) 98.5%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, AMBA, SIMO and ALAB?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, Astera Labs (ALAB) leads on 4. Business Quant does not give investment advice; use the comparison as a starting point for your own research.

Data from SEC filings, exchange prices and consensus estimates, via Business Quant. Percentile scores compare each company with its own peer group, so two companies' scores are each relative to different peers unless you rank against the whole market. Price returns exclude dividends. Nothing on this page is investment advice.