SNDK vs STX vs UMC Stock Comparison

Sandisk, Seagate Technology Holdings and United Microelectronics Prices as of Oct 29, 2026 Peers: Industry group
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SNDK Sandisk Corp
$1,330.05 -23.1% 1M +550.8% 1Y
Market cap
$157.46B
P/E
8.1x
Revenue (TTM)
$28.97B
Div. yield
–
Server and Storage Hardware Technology
5 wins
UMC United Microelectronics Corp
$18.04 -27.0% 1M +144.1% 1Y
Market cap
$40.18B
P/E
15.2x
Revenue (TTM)
$14.11B
Div. yield
–
Semiconductor Manufacturing Technology
3 wins

Head to Head

11 decided of 12

Sandisk leads on 5 of the 12 questions below (Sandisk 5, Seagate Technology Holdings 3, United Microelectronics 3). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionSNDKSTXUMCLeader
Larger companyMarket capitalisation $157.46B $134.50B $40.18B SNDK
Cheaper on earningsLower P/E, profitable companies only 8.1x 30.6x 15.2x SNDK
Cheaper on forward earningsLower price / next fiscal year consensus EPS 6.5x 18.2x 16.4x SNDK
Faster revenue growthRevenue growth, trailing twelve months +272.4% +44.4% +87.7% SNDK
More profitableNet margin, trailing twelve months — 31.9% 18.7% STX
Better return on capitalReturn on invested capital — 82.3% 11.6% STX
Less leveragedLower net debt / EBITDA — 0.2x -1.0x UMC
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +550.8% +163.7% +144.1% SNDK
Better 5-year returnAnnualised price return, 5 years — +51.1%/yr +11.9%/yr STX
Less volatileAnnualised volatility, 1 year 110.9% 73.9% 64.6% UMC
Higher overall scoreMean of the five percentile scores vs peers 80/100 67/100 80/100 UMC

Percentile Scorecard

SNDKSTXUMC

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

AxisSNDKSTXUMC
Valuation 56 #50 of 112 32 #77 of 112 95 #6 of 94
Growth 100 #1 of 108 99 #2 of 108 78 #21 of 92
Profitability 92 #9 of 104 100 #1 of 104 72 #25 of 88
Financial Health 72 #33 of 116 44 #65 of 116 67 #32 of 96
Shareholder Returns – 62 #30 of 78 89 #9 of 72
Overall 80 67 80
  • SNDK ranked among 121 companies in Computer Hardware
  • STX ranked among 121 companies in Computer Hardware
  • UMC ranked among 103 companies in Semiconductors

Price Performance

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

Returns

PeriodSNDKSTXUMCSPY
1 month -23.1%-23.3%-27.0% +0.7%
3 months +3.9%-17.8%-4.9% +3.7%
6 months +21.3%+4.0%+38.1% +7.1%
Year to date +460.3%+154.4%+129.5% +12.8%
1 year +550.8%+163.7%+144.1% +11.9%
3 years —+923.8%+155.2% +85.2%
3 years, per year —+117.3%+36.7% +22.8%
5 years —+686.4%+75.7% +67.6%
5 years, per year —+51.1%+11.9% +10.9%
10 years —+1,951.2%+864.7% +262.0%
10 years, per year —+35.3%+25.4% +13.7%

Risk

MeasureSNDKSTXUMCSPY
Volatility, 1Y 110.9%73.9%64.6% 12.7%
Downside volatility, 1Y 106.1%76.4%56.9% 12.6%
Beta vs S&P 500, 1Y 4.002.531.80 1.00
Return / volatility, 1Y 4.972.212.23 0.94
Max drawdown, 5Y -56.5%-58.2%-57.3% -25.4%
From 52-week high -43.0%-36.0%-35.6% -1.2%
52-week high $2,335.00$1,094.04$28.01 $779.14
52-week low $194.38$237.49$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.

MultipleSNDKSTXUMC
P/E now vs peer median 10.1xmedian 32.9x 36.3xmedian 32.9x 16.7xmedian 46.4x
P/S now vs peer median 6.7xmedian 2.9x 11.7xmedian 2.9x 3.2xmedian 7.8x
EV/EBITDA now vs peer median —median 20.0x 28.2xmedian 20.0x 11.1xmedian 27.5x
P/FCF now vs peer median 22.7xmedian 30.2x 38.7xmedian 30.2x 20.7xmedian 40.1x
P/B now vs peer median 10.7xmedian 2.9x 46.6xmedian 2.9x 3.1xmedian 4.7x
PEG now vs peer median —median 1.08 0.39median 1.08 2.62median 2.10

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 monthsSNDKSTXUMC
Revenue $28.97B $13.80B $14.11B
Gross profit $23.16B $6.95B $2.67B
Operating income $20.99B $5.46B $1.81B
Net income $19.42B $4.40B $2.64B
Free cash flow – $4.16B $2.19B
R&D $1.40B $769.00M $595.72M
EPS (diluted) $125.30 $18.95 $1.07
Cash & equivalents $5.14B $1.26B $4.48B
Total debt – $2.35B $781.92M
Shares (diluted) 155.00M 232.00M 2.47B
Enterprise value $157.46B $129.35B $24.55B

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
MetricSNDKSTXUMC
P/E 10.1x 36.3x 16.7x
P/FCF 22.7x 38.7x 20.7x
P/Operating cash flow 11.1x 33.3x 12.1x
P/S 6.7x 11.7x 3.2x
P/B 10.7x 46.6x 3.1x
P/Tangible book 10.7x 46.6x 3.1x
EV/EBITDA – 28.2x 11.1x
EV/EBIT – 29.6x 23.1x
EV/Revenue 6.7x 11.7x 3.0x
EV/FCF – 39.0x 19.0x
EV/Operating cash flow 11.1x 33.5x 11.1x
PEG (3Y EPS CAGR) – 0.39 2.62

Growth

14 metrics
MetricSNDKSTXUMC
Revenue growth (1Y) 272.4% 44.4% 87.7%
Revenue CAGR (3Y) – 26.6% 22.9%
Gross profit growth (1Y) 965.9% 97.2% 22.7%
Gross profit CAGR (3Y) – 89.7% -2.4%
Operating income growth (1Y) 1,507% 150.5% 29.9%
Operating income CAGR (3Y) – 125.4% -6.7%
Net income growth (1Y) 1,216% 156.6% 97.8%
Net income CAGR (3Y) – 99.4% 5.5%
EPS growth (1Y) 1,173% 150.0% 97.8%
EPS CAGR (3Y) – 94.1% 6.4%
Operating cash flow growth (1Y) 2,396% 217.9% 19.0%
Operating cash flow CAGR (3Y) – 80.3% 5.1%
Free cash flow growth (1Y) – 241.1% 410.9%
Free cash flow CAGR (3Y) – 93.8% 11.3%

Profitability

14 metrics
MetricSNDKSTXUMC
Gross margin – 50.4% 18.9%
EBITDA margin – 41.6% 26.7%
Operating margin – 39.6% 12.8%
Pretax margin – 36.7% 30.5%
Net margin – 31.9% 18.7%
FCF margin – 30.1% 15.5%
Operating cash flow margin 60.6% 35.0% 26.7%
Return on equity 114.7% 156.4% 18.4%
Return on assets 80.4% 43.3% 12.5%
Return on invested capital – 82.3% 11.6%
Return on capital employed – 76.1% 9.6%
Asset turnover 1.2x 1.4x 0.7x
Cash conversion (OCF / net income) 0.9x 1.1x 1.4x
Stock comp / revenue 0.9% 1.6% 0.1%

Financial Health

11 metrics
MetricSNDKSTXUMC
Debt / assets – 22.8% 3.7%
Debt / equity – 0.7x 0.1x
Net debt / EBITDA – 0.2x -1.0x
Debt / FCF – 0.6x 0.4x
Liabilities / assets 29.7% 66.6% 30.3%
Equity / assets 70.3% 33.4% 69.7%
Interest coverage – 22.3x 33.0x
Current ratio 2.6x 1.8x 3.3x
Quick ratio – 1.1x 2.6x
Cash ratio – 0.4x 2.0x
Altman Z-score – 16.77 –

Shareholder Returns

7 metrics
MetricSNDKSTXUMC
Dividend yield – 0.4% 2.2%
Net buyback yield – 0.3% 0.7%
Shareholder yield 0.0% 0.7% 2.9%
Payout ratio (earnings) – 14.8% –
Payout ratio (FCF) – 15.6% –
Dividend growth (1Y) – 7.1% –
Dividend CAGR (3Y) – 3.8% –

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.

ConsensusSNDKSTXUMC
Forward P/E 6.5xFY2027 18.2xFY2027 16.4xFY2026
EPS, next fiscal year $206.11FY2027 $38.53FY2027 $1.10FY2026
EPS growth, next FY +190.8%FY2027 +147.3%FY2027 +107.5%FY2026
EPS growth, the year after +36.1% +63.8% -2.7%
Revenue, next fiscal year $50.93BFY2027 $19.55BFY2027 $8.52BFY2026
Revenue growth, next FY +151.5%FY2027 +60.2%FY2027 +12.1%FY2026
Revenue growth, the year after +10.4% +29.7% +24.7%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersSNDKSTXUMC
Held by institutions – 83.8% 7.1%
Institutions holding – 1,957 363
Change in shares held, QoQ – +1.4% +3.2%
Institutions buying – 1,209 220
Institutions selling – 590 110
Buyers to sellers – 2.05 2.00

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.

SNDKSTXUMC
SNDK 1.00 0.72 0.42
STX 0.72 1.00 0.35
UMC 0.42 0.35 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, SNDK, STX and UMC?

Sandisk (SNDK) is the largest by market capitalisation: Sandisk (SNDK) $157.46B, Seagate Technology Holdings (STX) $134.50B, United Microelectronics (UMC) $40.18B.

Which stock is cheaper, SNDK, STX and UMC?

Sandisk (SNDK) trades on the lowest price-to-earnings ratio (Sandisk (SNDK) 8.1x, Seagate Technology Holdings (STX) 30.6x, United Microelectronics (UMC) 15.2x). On next year's consensus earnings, Sandisk (SNDK) is cheapest (Sandisk (SNDK) 6.5x, Seagate Technology Holdings (STX) 18.2x, United Microelectronics (UMC) 16.4x). A lower multiple can reflect slower expected growth, so read it next to the growth figures.

Which company is growing faster?

Sandisk (SNDK) grew revenue fastest over the trailing twelve months: Sandisk (SNDK) +272.4%, Seagate Technology Holdings (STX) +44.4%, United Microelectronics (UMC) +87.7%.

Which company is more profitable?

Seagate Technology Holdings (STX) has the highest net margin (Seagate Technology Holdings (STX) 31.9%, United Microelectronics (UMC) 18.7%). On return on invested capital, Seagate Technology Holdings (STX) leads (Seagate Technology Holdings (STX) 82.3%, United Microelectronics (UMC) 11.6%).

Which stock has performed better?

Over the past year Sandisk (SNDK) returned the most: Sandisk (SNDK) +550.8%, Seagate Technology Holdings (STX) +163.7%, United Microelectronics (UMC) +144.1%. Over five years, Seagate Technology Holdings (STX) compounded fastest (Seagate Technology Holdings (STX) +51.1%/yr, United Microelectronics (UMC) +11.9%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Sandisk (SNDK) 0.00%, Seagate Technology Holdings (STX) 0.00%, United Microelectronics (UMC) 0.00%. Sandisk (SNDK) and United Microelectronics (UMC) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, United Microelectronics (UMC) has been the steadiest (Sandisk (SNDK) 110.9%, Seagate Technology Holdings (STX) 73.9%, United Microelectronics (UMC) 64.6%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, SNDK, STX 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, Sandisk (SNDK) 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.