SNDK vs UMC vs STX Stock Comparison

Sandisk, United Microelectronics and Seagate Technology Holdings 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.

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

Percentile Scorecard

SNDKUMCSTX

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

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

Price Performance

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

Returns

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

Risk

MeasureSNDKUMCSTXSPY
Volatility, 1Y 110.9%64.6%73.9% 12.7%
Downside volatility, 1Y 106.1%56.9%76.4% 12.6%
Beta vs S&P 500, 1Y 4.001.802.53 1.00
Return / volatility, 1Y 4.972.232.21 0.94
Max drawdown, 5Y -56.5%-57.3%-58.2% -25.4%
From 52-week high -43.0%-35.6%-36.0% -1.2%
52-week high $2,335.00$28.01$1,094.04 $779.14
52-week low $194.38$7.02$237.49 $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.

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

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

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

Growth

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

Profitability

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

Financial Health

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

Shareholder Returns

7 metrics
MetricSNDKUMCSTX
Dividend yield – 2.2% 0.4%
Net buyback yield – 0.7% 0.3%
Shareholder yield 0.0% 2.9% 0.7%
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.

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

Institutional Ownership

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

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.

SNDKUMCSTX
SNDK 1.00 0.42 0.72
UMC 0.42 1.00 0.35
STX 0.72 0.35 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, SNDK, UMC and STX?

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

Which stock is cheaper, SNDK, UMC and STX?

Sandisk (SNDK) trades on the lowest price-to-earnings ratio (Sandisk (SNDK) 8.1x, United Microelectronics (UMC) 15.2x, Seagate Technology Holdings (STX) 30.6x). On next year's consensus earnings, Sandisk (SNDK) is cheapest (Sandisk (SNDK) 6.5x, United Microelectronics (UMC) 16.4x, Seagate Technology Holdings (STX) 18.2x). 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%, United Microelectronics (UMC) +87.7%, Seagate Technology Holdings (STX) +44.4%.

Which company is more profitable?

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

Which stock has performed better?

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

Which pays a higher dividend?

Only one of these companies pays a dividend: Sandisk (SNDK) 0.00%, United Microelectronics (UMC) 0.00%, Seagate Technology Holdings (STX) 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%, United Microelectronics (UMC) 64.6%, Seagate Technology Holdings (STX) 73.9%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, SNDK, UMC and STX?

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.