ALAB vs ARM vs UMC Stock Comparison

Astera Labs, Arm Holdings and United Microelectronics 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
$51.23B
P/E
138.7x
Revenue (TTM)
$1.20B
Div. yield
–
Semiconductor Design Technology
2 wins
ARM Arm Holdings Plc /Uk
$226.60 -27.0% 1M +26.9% 1Y
Market cap
$248.66B
P/E
238.2x
Revenue (TTM)
$5.16B
Div. yield
–
Semiconductor Design Technology
1 win
UMC United Microelectronics Corp
$19.47 -19.9% 1M +157.2% 1Y
Market cap
$45.95B
P/E
17.5x
Revenue (TTM)
$13.76B
Div. yield
–
Semiconductor Manufacturing Technology
5 wins

Head to Head

8 decided of 12

United Microelectronics leads on 5 of the 12 questions below (United Microelectronics 5, Astera Labs 2, Arm Holdings 1). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionALABARMUMCLeader
Larger companyMarket capitalisation $51.23B $248.66B $45.95B ARM
Cheaper on earningsLower P/E, profitable companies only 138.7x 238.2x 17.5x UMC
Cheaper on forward earningsLower price / next fiscal year consensus EPS 76.9x 109.5x 17.7x UMC
Faster revenue growthRevenue growth, trailing twelve months +98.5% +25.1% +85.6% ALAB
More profitableNet margin, trailing twelve months 30.7% 20.2% 19.1% ALAB
Better return on capitalReturn on invested capital — — 10.6% –
Less leveragedLower net debt / EBITDA — — -0.9x –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +68.4% +26.9% +157.2% UMC
Better 5-year returnAnnualised price return, 5 years — — +13.0%/yr –
Less volatileAnnualised volatility, 1 year 98.8% 78.9% 64.4% UMC
Higher overall scoreMean of the five percentile scores vs peers 62/100 62/100 72/100 UMC

Percentile Scorecard

ALABARMUMC

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

AxisALABARMUMC
Valuation 9 #86 of 94 8 #87 of 94 83 #17 of 94
Growth 91 #9 of 92 88 #12 of 92 56 #41 of 92
Profitability 80 #19 of 90 78 #21 of 90 73 #25 of 90
Financial Health 92 #9 of 99 77 #24 of 99 55 #45 of 99
Shareholder Returns 36 #47 of 73 – 93 #6 of 73
Overall 62 62 72
  • ALAB ranked among 103 companies in Semiconductors
  • ARM ranked among 103 companies in Semiconductors
  • UMC ranked among 103 companies in Semiconductors

Price Performance

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

Returns

PeriodALABARMUMCSPY
1 month -21.4%-27.0%-19.9% -0.2%
3 months +10.2%-7.4%+12.1% +3.9%
6 months +56.4%+14.1%+67.0% +8.2%
Year to date +72.3%+107.3%+147.7% +12.9%
1 year +68.4%+26.9%+157.2% +12.3%
3 years —+361.6%+175.4% +87.4%
3 years, per year —+66.6%+40.2% +23.3%
5 years ——+83.9% +67.9%
5 years, per year ——+13.0% +10.9%
10 years ——+958.2% +261.1%
10 years, per year ——+26.6% +13.7%

Risk

MeasureALABARMUMCSPY
Volatility, 1Y 98.8%78.9%64.4% 12.7%
Downside volatility, 1Y 100.9%71.2%56.8% 12.7%
Beta vs S&P 500, 1Y 3.923.461.79 1.00
Return / volatility, 1Y 0.690.342.44 0.97
Max drawdown, 5Y -63.7%-54.0%-57.3% -25.4%
From 52-week high -40.6%-48.4%-30.5% -1.2%
52-week high $483.02$439.46$28.01 $779.14
52-week low $100.27$104.55$7.02 $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.

MultipleALABARMUMC
P/E now vs peer median 133.7xmedian 45.6x 230.3xmedian 45.6x 18.1xmedian 45.6x
P/S now vs peer median 41.4xmedian 7.7x 46.6xmedian 7.7x 3.6xmedian 7.7x
EV/EBITDA now vs peer median 169.9xmedian 29.0x 204.3xmedian 29.0x 13.0xmedian 29.0x
P/FCF now vs peer median 179.8xmedian 40.6x 119.5xmedian 40.6x 24.8xmedian 40.6x
P/B now vs peer median 28.8xmedian 4.6x 27.9xmedian 4.6x 3.5xmedian 4.6x
PEG now vs peer median —median 2.28 6.49median 2.28 26.42median 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 monthsALABARMUMC
Revenue $1.20B $5.16B $13.76B
Gross profit $903.00M $5.03B $2.47B
Operating income $273.45M $877.00M $1.60B
Net income $369.49M $1.04B $2.62B
Free cash flow $276.68M $2.01B $1.98B
R&D $434.25M $2.96B $609.13M
EPS (diluted) $2.02 $0.98 $1.07
Cash & equivalents $111.45M $3.06B $3.91B
Total debt – – $4.90B
Shares (diluted) 183.34M 1.07B 2.47B
Enterprise value $46.47B $234.37B $31.21B

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
MetricALABARMUMC
P/E 133.7x 230.3x 18.1x
P/FCF 179.8x 119.5x 24.8x
P/Operating cash flow 148.2x 114.8x 13.9x
P/S 41.4x 46.6x 3.6x
P/B 28.8x 27.9x 3.5x
P/Tangible book 28.8x 28.6x 3.5x
EV/EBITDA 169.9x 204.3x 13.0x
EV/EBIT 177.3x 269.7x 28.7x
EV/Revenue 40.3x 45.9x 3.3x
EV/FCF 175.2x 117.6x 23.2x
EV/Operating cash flow 144.4x 113.0x 13.0x
PEG (3Y EPS CAGR) – 6.49 26.42

Growth

14 metrics
MetricALABARMUMC
Revenue growth (1Y) 98.5% 25.1% 85.6%
Revenue CAGR (3Y) – 24.7% 18.5%
Gross profit growth (1Y) 97.5% 25.6% 11.3%
Gross profit CAGR (3Y) – 25.4% -10.1%
Operating income growth (1Y) 546.3% 14.9% 9.6%
Operating income CAGR (3Y) – 21.6% -16.5%
Net income growth (1Y) 268.9% 49.4% 104.8%
Net income CAGR (3Y) – 37.2% -0.2%
EPS growth (1Y) 258.4% 48.7% 116.8%
EPS CAGR (3Y) – 35.5% 0.7%
Operating cash flow growth (1Y) 34.8% 105.5% 17.5%
Operating cash flow CAGR (3Y) – 34.7% -3.7%
Free cash flow growth (1Y) 31.5% 121.8% 447.4%
Free cash flow CAGR (3Y) – 33.3% -7.5%

Profitability

14 metrics
MetricALABARMUMC
Gross margin 75.1% 97.5% 18.0%
EBITDA margin 23.7% 22.5% 25.6%
Operating margin 22.8% 17.0% 11.6%
Pretax margin 26.8% 24.5% 30.3%
Net margin 30.7% 20.2% 19.1%
FCF margin 23.0% 39.0% 14.4%
Operating cash flow margin 27.9% 40.6% 25.6%
Return on equity 23.0% 16.3% 19.7%
Return on assets 20.6% 12.6% 13.2%
Return on invested capital – – 10.6%
Return on capital employed 16.8% 9.0% 9.7%
Asset turnover 0.7x 0.5x 0.7x
Cash conversion (OCF / net income) 0.9x 2.0x 1.3x
Stock comp / revenue 16.2% 22.4% 0.1%

Financial Health

11 metrics
MetricALABARMUMC
Debt / assets – – 3.5%
Debt / equity – – 0.1x
Net debt / EBITDA – – -0.9x
Debt / FCF – – 0.4x
Liabilities / assets 10.7% 22.9% 33.3%
Equity / assets 89.3% 77.1% 66.7%
Interest coverage – – 30.3x
Current ratio 10.1x 5.3x 2.2x
Quick ratio 8.8x 4.9x 1.6x
Cash ratio 7.6x 3.2x 1.2x
Altman Z-score 147.20 58.08 –

Shareholder Returns

7 metrics
MetricALABARMUMC
Dividend yield – – 2.1%
Net buyback yield 0.0% – –
Shareholder yield 0.0% – 2.1%
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.

ConsensusALABARMUMC
Forward P/E 76.9xFY2026 109.5xFY2026 17.7xFY2026
EPS, next fiscal year $3.73FY2026 $2.07FY2026 $1.10FY2026
EPS growth, next FY +102.7%FY2026 +16.9%FY2026 +107.5%FY2026
EPS growth, the year after +64.9% +49.8% -2.7%
Revenue, next fiscal year $2.01BFY2026 $5.71BFY2026 $8.52BFY2026
Revenue growth, next FY +135.3%FY2026 +16.0%FY2026 +12.1%FY2026
Revenue growth, the year after +46.5% +38.7% +24.7%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersALABARMUMC
Held by institutions 73.6% 9.3% 7.1%
Institutions holding 986 955 362
Change in shares held, QoQ +5.8% +12.4% +3.2%
Institutions buying 660 593 220
Institutions selling 253 257 109
Buyers to sellers 2.61 2.31 2.02

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.

ALABARMUMC
ALAB 1.00 0.53 0.43
ARM 0.53 1.00 0.46
UMC 0.43 0.46 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, ALAB, ARM and UMC?

Arm Holdings (ARM) is the largest by market capitalisation: Astera Labs (ALAB) $51.23B, Arm Holdings (ARM) $248.66B, United Microelectronics (UMC) $45.95B.

Which stock is cheaper, ALAB, ARM and UMC?

United Microelectronics (UMC) trades on the lowest price-to-earnings ratio (Astera Labs (ALAB) 138.7x, Arm Holdings (ARM) 238.2x, United Microelectronics (UMC) 17.5x). On next year's consensus earnings, United Microelectronics (UMC) is cheapest (Astera Labs (ALAB) 76.9x, Arm Holdings (ARM) 109.5x, United Microelectronics (UMC) 17.7x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Astera Labs (ALAB) grew revenue fastest over the trailing twelve months: Astera Labs (ALAB) +98.5%, Arm Holdings (ARM) +25.1%, United Microelectronics (UMC) +85.6%.

Which company is more profitable?

Astera Labs (ALAB) has the highest net margin (Astera Labs (ALAB) 30.7%, Arm Holdings (ARM) 20.2%, United Microelectronics (UMC) 19.1%).

Which stock has performed better?

Over the past year United Microelectronics (UMC) returned the most: Astera Labs (ALAB) +68.4%, Arm Holdings (ARM) +26.9%, United Microelectronics (UMC) +157.2%. Returns are price only, before dividends.

Which stock is riskier?

By one-year price volatility, United Microelectronics (UMC) has been the steadiest (Astera Labs (ALAB) 98.8%, Arm Holdings (ARM) 78.9%, United Microelectronics (UMC) 64.4%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, ALAB, ARM and UMC?

There is no single answer; it depends on what you are buying for. On the 12 head-to-head measures on this page, United Microelectronics (UMC) leads on 5. 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.