ALAB vs AMBA vs SIMO Stock Comparison

Astera Labs, Ambarella and Silicon Motion Technology Prices as of Oct 27, 2026 Peers: Industry group
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ALAB Astera Labs, Inc.
$286.69 -21.4% 1M +68.4% 1Y
Market cap
$49.74B
P/E
133.7x
Revenue (TTM)
$1.20B
Div. yield
–
Semiconductor Design Technology
4 wins
AMBA Ambarella Inc
$67.12 -7.6% 1M -22.4% 1Y
Market cap
$2.96B
P/E
–
Revenue (TTM)
$417.80M
Div. yield
–
Semiconductor Design Technology
1 win

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.

QuestionALABAMBASIMOLeader
Larger companyMarket capitalisation $49.74B $2.96B $6.85B ALAB
Cheaper on earningsLower P/E, profitable companies only 133.7x -52.4x — –
Cheaper on forward earningsLower price / next fiscal year consensus EPS 76.9x 87.2x 17.8x SIMO
Faster revenue growthRevenue growth, trailing twelve months +98.5% +20.0% — ALAB
More profitableNet margin, trailing twelve months 30.7% -13.5% — ALAB
Better return on capitalReturn on invested capital — — — –
Less leveragedLower net debt / EBITDA — — — –
Higher dividend yieldTrailing dividend yield 0.00% — 0.98% –
Better 1-year returnPrice return, last 12 months +68.4% -22.4% +98.3% SIMO
Better 5-year returnAnnualised price return, 5 years — -18.8%/yr +24.0%/yr SIMO
Less volatileAnnualised volatility, 1 year 98.8% 74.4% 84.4% AMBA
Higher overall scoreMean of the five percentile scores vs peers 62/100 41/100 36/100 ALAB

Percentile Scorecard

ALABAMBASIMO

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

AxisALABAMBASIMO
Valuation 9 #86 of 94 33 #63 of 94 14 #81 of 94
Growth 91 #9 of 92 54 #43 of 92 26 #68 of 92
Profitability 80 #19 of 90 26 #67 of 90 –
Financial Health 92 #9 of 99 58 #42 of 99 36 #64 of 99
Shareholder Returns 36 #47 of 73 32 #50 of 73 67 #25 of 73
Overall 62 41 36
  • ALAB ranked among 103 companies in Semiconductors
  • AMBA ranked among 103 companies in Semiconductors
  • SIMO ranked among 103 companies in Semiconductors

Price Performance

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

Returns

PeriodALABAMBASIMOSPY
1 month -21.4%-7.6%-26.1% -0.2%
3 months +10.2%-2.7%-7.8% +3.9%
6 months +56.4%+5.3%+36.9% +8.2%
Year to date +72.3%-5.3%+120.2% +12.9%
1 year +68.4%-22.4%+98.3% +12.3%
3 years —+43.4%+287.9% +87.4%
3 years, per year —+12.8%+57.2% +23.3%
5 years —-64.6%+192.8% +67.9%
5 years, per year —-18.8%+24.0% +10.9%
10 years —+9.3%+339.9% +261.1%
10 years, per year —+0.9%+16.0% +13.7%

Risk

MeasureALABAMBASIMOSPY
Volatility, 1Y 98.8%74.4%84.4% 12.7%
Downside volatility, 1Y 100.9%79.6%78.0% 12.7%
Beta vs S&P 500, 1Y 3.922.612.42 1.00
Return / volatility, 1Y 0.69-0.301.16 0.97
Max drawdown, 5Y -63.7%-81.7%-59.1% -25.4%
From 52-week high -40.6%-29.7%-39.4% -1.2%
52-week high $483.02$95.51$336.90 $779.14
52-week low $100.27$48.65$80.16 $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.

MultipleALABAMBASIMO
P/E now vs peer median 133.7xmedian 45.6x -52.4xmedian 45.6x —median 45.6x
P/S now vs peer median 41.4xmedian 7.7x 7.1xmedian 7.7x —median 7.7x
EV/EBITDA now vs peer median 169.9xmedian 29.0x -72.3xmedian 29.0x —median 29.0x
P/FCF now vs peer median 179.8xmedian 40.6x 304.8xmedian 40.6x -533.1xmedian 40.6x
P/B now vs peer median 28.8xmedian 4.6x 4.8xmedian 4.6x 6.5xmedian 4.6x
PEG now vs peer median —median 2.28 -2.67median 2.28 —median 2.28

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 monthsALABAMBASIMO
Revenue $1.20B $417.80M –
Gross profit $903.00M $244.50M –
Operating income $273.45M -$62.24M –
Net income $369.49M -$56.32M $289.77M
Free cash flow $276.68M $9.72M -$12.85M
R&D $434.25M $228.69M –
EPS (diluted) $2.02 $-1.28 –
Cash & equivalents $111.45M $101.85M $74.37M
Total debt – – $167.29M
Shares (diluted) 183.34M 44.01M 33.68M
Enterprise value $44.98B $1.80B $6.24B

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
MetricALABAMBASIMO
P/E 133.7x -52.4x –
P/FCF 179.8x 304.8x -533.1x
P/Operating cash flow 148.2x 108.4x -102.8x
P/S 41.4x 7.1x –
P/B 28.8x 4.8x 6.5x
P/Tangible book 28.8x 5.3x 7.2x
EV/EBITDA 169.9x -72.3x –
EV/EBIT 177.3x -43.2x –
EV/Revenue 40.3x 6.4x –
EV/FCF 175.2x 276.8x -531.9x
EV/Operating cash flow 144.4x 98.5x -102.6x
PEG (3Y EPS CAGR) – -2.67 –

Growth

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

Profitability

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

Financial Health

11 metrics
MetricALABAMBASIMO
Debt / assets – – 3.7%
Debt / equity – – 0.1x
Net debt / EBITDA – – –
Debt / FCF – – -4.6x
Liabilities / assets 10.7% 20.5% 34.8%
Equity / assets 89.3% 79.5% 65.2%
Interest coverage – – –
Current ratio 10.1x 2.8x 2.5x
Quick ratio 8.8x 2.2x 0.8x
Cash ratio 7.6x 2.0x 0.2x
Altman Z-score 147.20 11.15 –

Shareholder Returns

7 metrics
MetricALABAMBASIMO
Dividend yield – – 1.0%
Net buyback yield 0.0% -0.1% –
Shareholder yield 0.0% -0.1% 1.0%
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.

ConsensusALABAMBASIMO
Forward P/E 76.9xFY2026 87.2xFY2026 17.8xFY2026
EPS, next fiscal year $3.73FY2026 $0.77FY2026 $11.50FY2026
EPS growth, next FY +102.7%FY2026 +24.2%FY2026 +223.9%FY2026
EPS growth, the year after +64.9% +40.3% +37.5%
Revenue, next fiscal year $2.01BFY2026 $454.23MFY2026 $1.82BFY2026
Revenue growth, next FY +135.3%FY2026 +16.3%FY2026 +105.0%FY2026
Revenue growth, the year after +46.5% +3.4% +27.4%

Institutional Ownership

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

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.

ALABAMBASIMO
ALAB 1.00 0.39 0.54
AMBA 0.39 1.00 0.34
SIMO 0.54 0.34 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, ALAB, AMBA and SIMO?

Astera Labs (ALAB) is the largest by market capitalisation: Astera Labs (ALAB) $49.74B, Ambarella (AMBA) $2.96B, Silicon Motion Technology (SIMO) $6.85B.

Which company is growing faster?

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

Which company is more profitable?

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

Which stock has performed better?

Over the past year Silicon Motion Technology (SIMO) returned the most: Astera Labs (ALAB) +68.4%, Ambarella (AMBA) -22.4%, Silicon Motion Technology (SIMO) +98.3%. Over five years, Silicon Motion Technology (SIMO) compounded fastest (Ambarella (AMBA) -18.8%/yr, Silicon Motion Technology (SIMO) +24.0%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Astera Labs (ALAB) 0.00%, Silicon Motion Technology (SIMO) 0.98%. Astera Labs (ALAB) and Ambarella (AMBA) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Ambarella (AMBA) has been the steadiest (Astera Labs (ALAB) 98.8%, Ambarella (AMBA) 74.4%, Silicon Motion Technology (SIMO) 84.4%). Volatility measures how widely the price swings, not the risk of the business.

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

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.