WDC vs SNDK vs SIMO Stock Comparison

Western Digital, Sandisk and Silicon Motion Technology Prices as of Oct 26, 2026 Peers: Industry group
WDC Western Digital Corp
$356.13 -22.0% 1M +175.2% 1Y
Market cap
$139.55B
P/E
13.9x
Revenue (TTM)
$14.48B
Div. yield
0.00%
Server and Storage Hardware Technology
4 wins
SNDK Sandisk Corp
$1,255.58 -29.4% 1M +574.5% 1Y
Market cap
$192.10B
P/E
16.8x
Revenue (TTM)
$20.25B
Div. yield
–
Server and Storage Hardware Technology
6 wins

Head to Head

10 decided of 12

Sandisk leads on 6 of the 12 questions below (Sandisk 6, Western Digital 4). Which ones matter depends on what you are buying for; a cheap multiple and slow growth often come together.

QuestionWDCSNDKSIMOLeader
Larger companyMarket capitalisation $139.55B $192.10B $6.86B SNDK
Cheaper on earningsLower P/E, profitable companies only 13.9x 16.8x — WDC
Cheaper on forward earningsLower price / next fiscal year consensus EPS 14.8x 6.1x 16.5x SNDK
Faster revenue growthRevenue growth, trailing twelve months +43.0% +175.3% — SNDK
More profitableNet margin, trailing twelve months 69.2% 56.5% — WDC
Better return on capitalReturn on invested capital 53.8% 73.7% — SNDK
Less leveragedLower net debt / EBITDA -0.1x — — –
Higher dividend yieldTrailing dividend yield 0.00% 0.00% 0.00% –
Better 1-year returnPrice return, last 12 months +175.2% +574.5% +90.8% SNDK
Better 5-year returnAnnualised price return, 5 years +53.4%/yr — +21.4%/yr WDC
Less volatileAnnualised volatility, 1 year 81.2% 111.7% 84.2% WDC
Higher overall scoreMean of the five percentile scores vs peers 78/100 79/100 35/100 SNDK

Percentile Scorecard

WDCSNDKSIMO

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

AxisWDCSNDKSIMO
Valuation 54 #52 of 111 66 #39 of 111 12 #84 of 95
Growth 99 #2 of 108 100 #1 of 108 26 #69 of 93
Profitability 98 #3 of 104 100 #1 of 104 –
Financial Health 66 #40 of 115 82 #22 of 115 36 #65 of 101
Shareholder Returns 75 #21 of 81 49 #42 of 81 66 #26 of 75
Overall 78 79 35
  • WDC ranked among 121 companies in Computer Hardware
  • SNDK ranked among 121 companies in Computer Hardware
  • SIMO ranked among 104 companies in Semiconductors

Price Performance

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

Returns

PeriodWDCSNDKSIMOSPY
1 month -22.0%-29.4%-31.5% -0.8%
3 months -28.5%-1.8%-22.6% +3.5%
6 months -11.1%+17.3%+28.2% +7.0%
Year to date +106.7%+428.9%+104.1% +12.2%
1 year +175.2%+574.5%+90.8% +13.0%
3 years +1,108.9%—+259.4% +86.3%
3 years, per year +129.6%—+53.2% +23.1%
5 years +749.3%—+163.6% +68.6%
5 years, per year +53.4%—+21.4% +11.0%
10 years +733.6%—+305.8% +258.0%
10 years, per year +23.6%—+15.0% +13.6%

Risk

MeasureWDCSNDKSIMOSPY
Volatility, 1Y 81.2%111.7%84.2% 12.7%
Downside volatility, 1Y 82.1%105.8%78.0% 12.7%
Beta vs S&P 500, 1Y 3.153.982.40 1.00
Return / volatility, 1Y 2.165.141.08 1.02
Max drawdown, 5Y -55.5%-56.5%-59.1% -25.4%
From 52-week high -52.3%-46.2%-43.8% -1.8%
52-week high $746.23$2,335.00$336.90 $779.14
52-week low $124.92$175.53$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.

MultipleWDCSNDKSIMO
P/E now vs peer median 13.0xmedian 32.0x 16.1xmedian 32.0x —median 42.1x
P/S now vs peer median 9.2xmedian 2.8x 9.1xmedian 2.8x —median 7.1x
EV/EBITDA now vs peer median 21.8xmedian 19.4x 14.2xmedian 19.4x —median 27.5x
P/FCF now vs peer median 31.1xmedian 29.0x 15.9xmedian 29.0x -494.0xmedian 37.2x
P/B now vs peer median 14.3xmedian 2.9x 11.6xmedian 2.9x 6.1xmedian 4.2x
PEG now vs peer median 0.17median 1.13 —median 1.13 —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 monthsWDCSNDKSIMO
Revenue $14.48B $20.25B –
Gross profit $7.62B $14.47B –
Operating income $5.71B $12.39B –
Net income $10.02B $11.43B $289.77M
Free cash flow $4.29B $11.49B -$12.85M
R&D $1.15B $1.33B –
EPS (diluted) $26.10 $73.76 –
Cash & equivalents $1.31B $4.76B $74.37M
Total debt $12.58B – $167.29M
Shares (diluted) 384.00M 155.00M 33.68M
Enterprise value $129.38B $180.62B $6.25B

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
MetricWDCSNDKSIMO
P/E 13.0x 16.1x –
P/FCF 31.1x 15.9x -494.0x
P/Operating cash flow 27.4x 15.7x -95.2x
P/S 9.2x 9.1x –
P/B 14.3x 11.6x 6.1x
P/Tangible book 14.3x 11.6x 6.6x
EV/EBITDA 21.8x 14.2x –
EV/EBIT 23.3x 14.4x –
EV/Revenue 9.2x 8.8x –
EV/FCF 31.0x 15.5x -492.8x
EV/Operating cash flow 27.3x 15.3x -95.0x
PEG (3Y EPS CAGR) 0.17 – –

Growth

14 metrics
MetricWDCSNDKSIMO
Revenue growth (1Y) 43.0% 175.3% –
Revenue CAGR (3Y) 57.4% – –
Gross profit growth (1Y) 85.2% 554.2% –
Gross profit CAGR (3Y) 126.7% – –
Operating income growth (1Y) 104.4% 999.7% –
Operating income CAGR (3Y) 85.5% – –
Net income growth (1Y) 288.7% 796.7% 270.6%
Net income CAGR (3Y) 83.2% – 49.0%
EPS growth (1Y) 286.8% 751.8% –
EPS CAGR (3Y) 75.8% – –
Operating cash flow growth (1Y) 108.7% 13,794% -182.4%
Operating cash flow CAGR (3Y) 88.3% – -36.3%
Free cash flow growth (1Y) 121.1% 9,678% -109.8%
Free cash flow CAGR (3Y) 66.0% – -27.6%

Profitability

14 metrics
MetricWDCSNDKSIMO
Gross margin 52.6% 71.5% –
EBITDA margin 42.1% 62.0% –
Operating margin 39.4% 61.2% –
Pretax margin 73.2% 64.3% –
Net margin 69.2% 56.5% –
FCF margin 29.6% 56.8% –
Operating cash flow margin 33.6% 57.6% –
Return on equity 110.0% 77.5% –
Return on assets 71.3% 57.8% –
Return on invested capital 53.8% 73.7% –
Return on capital employed 57.3% 87.2% –
Asset turnover 1.0x 1.0x –
Cash conversion (OCF / net income) 0.5x 1.0x -0.2x
Stock comp / revenue 1.6% 1.1% –

Financial Health

11 metrics
MetricWDCSNDKSIMO
Debt / assets 5.5% – 3.7%
Debt / equity 0.1x – 0.1x
Net debt / EBITDA -0.1x – –
Debt / FCF 0.2x – -4.6x
Liabilities / assets 34.3% 30.1% 34.8%
Equity / assets 65.7% 69.9% 65.2%
Interest coverage 48.8x 169.7x –
Current ratio 1.4x 2.3x 2.5x
Quick ratio 0.9x 12.2x 0.8x
Cash ratio 0.3x 0.9x 0.2x
Altman Z-score 19.75 19.94 –

Shareholder Returns

7 metrics
MetricWDCSNDKSIMO
Dividend yield 0.2% – 1.1%
Net buyback yield 2.3% 0.0% –
Shareholder yield 2.4% 0.0% 1.1%
Payout ratio (earnings) 2.0% – –
Payout ratio (FCF) 4.6% – –
Dividend growth (1Y) 151.3% – –
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.

ConsensusWDCSNDKSIMO
Forward P/E 14.8xFY2027 6.1xFY2027 16.5xFY2026
EPS, next fiscal year $24.04FY2027 $206.11FY2027 $11.50FY2026
EPS growth, next FY +135.2%FY2027 +190.8%FY2027 +223.9%FY2026
EPS growth, the year after +70.9% +36.1% +37.5%
Revenue, next fiscal year $20.04BFY2027 $50.93BFY2027 $1.82BFY2026
Revenue growth, next FY +55.1%FY2027 +151.5%FY2027 +105.0%FY2026
Revenue growth, the year after +39.2% +10.4% +27.4%

Institutional Ownership

13F filings, quarter ended Jun 30, 2026
HoldersWDCSNDKSIMO
Held by institutions 93.7% 74.3% 72.4%
Institutions holding 1,845 1,816 380
Change in shares held, QoQ -1.3% -1.9% -9.8%
Institutions buying 1,127 1,269 223
Institutions selling 596 457 131
Buyers to sellers 1.89 2.78 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.

WDCSNDKSIMO
WDC 1.00 0.73 0.50
SNDK 0.73 1.00 0.52
SIMO 0.50 0.52 1.00

Add a Peer

Largest companies in the same industry

Related Comparisons

Frequently Asked Questions

Which is bigger, WDC, SNDK and SIMO?

Sandisk (SNDK) is the largest by market capitalisation: Western Digital (WDC) $139.55B, Sandisk (SNDK) $192.10B, Silicon Motion Technology (SIMO) $6.86B.

Which stock is cheaper, WDC, SNDK and SIMO?

Western Digital (WDC) trades on the lowest price-to-earnings ratio (Western Digital (WDC) 13.9x, Sandisk (SNDK) 16.8x). On next year's consensus earnings, Sandisk (SNDK) is cheapest (Western Digital (WDC) 14.8x, Sandisk (SNDK) 6.1x, Silicon Motion Technology (SIMO) 16.5x). 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: Western Digital (WDC) +43.0%, Sandisk (SNDK) +175.3%.

Which company is more profitable?

Western Digital (WDC) has the highest net margin (Western Digital (WDC) 69.2%, Sandisk (SNDK) 56.5%). On return on invested capital, Sandisk (SNDK) leads (Western Digital (WDC) 53.8%, Sandisk (SNDK) 73.7%).

Which stock has performed better?

Over the past year Sandisk (SNDK) returned the most: Western Digital (WDC) +175.2%, Sandisk (SNDK) +574.5%, Silicon Motion Technology (SIMO) +90.8%. Over five years, Western Digital (WDC) compounded fastest (Western Digital (WDC) +53.4%/yr, Silicon Motion Technology (SIMO) +21.4%/yr). Returns are price only, before dividends.

Which pays a higher dividend?

Only one of these companies pays a dividend: Western Digital (WDC) 0.00%, Sandisk (SNDK) 0.00%, Silicon Motion Technology (SIMO) 0.00%. Sandisk (SNDK) and Silicon Motion Technology (SIMO) pays no regular dividend.

Which stock is riskier?

By one-year price volatility, Western Digital (WDC) has been the steadiest (Western Digital (WDC) 81.2%, Sandisk (SNDK) 111.7%, Silicon Motion Technology (SIMO) 84.2%). Volatility measures how widely the price swings, not the risk of the business.

Which is the better stock, WDC, SNDK 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, Sandisk (SNDK) leads on 6. 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.