SNDK
Sandisk Corporation
SNDK offers stronger fundamentals, but that advantage does not outweigh its weaker overall profile.
WDC
Western Digital Corporation
WDC has a slight edge over SNDK overall, supported by lower modeled downside and stronger modeled upside.
SNDK Fundamentals
| Metric | Status |
|---|---|
| Strong | |
| Strong | |
| Strong | |
| Strong |
SNDK's revenue, profitability, cash flow and balance sheet are all currently strong.
WDC Fundamentals
| Metric | Status |
|---|---|
| Strong | |
| Strong | |
| Strong | |
| Strong |
WDC's revenue, profitability, cash flow and balance sheet are all currently strong.
SNDK PE Valuation
| Level | PE | Price | Vs current |
|---|---|---|---|
| Forward | 3.8x | $937 | — |
| Current | 7.5x | $937 | — |
| Cheap | 17x | $2,173 | +132% |
| Fair | 24x | $3,048 | +225% |
| Expensive | 59x | $7,452 | +695% |
Historical ranges are pointers, not guarantees.
SNDK has the edge over WDC in the historical PE scenario, which offers more potential upside but is not a forecast.
WDC PE Valuation
| Level | PE | Price | Vs current |
|---|---|---|---|
| Cheap | 9.9x | $255 | -18% |
| Forward | 11x | $311 | — |
| Current | 12x | $311 | — |
| Fair | 19x | $487 | +56% |
| Expensive | 63x | $1,618 | +420% |
Historical ranges are pointers, not guarantees.
WDC's PE is in its cheap range at 12x, but its recent earnings include one-off gains. If earnings grow as analysts expect, today's price would be 11x next year's earnings.
SNDK Forward outlook
| Metric | Outlook |
|---|---|
| Strongly improving | |
| Strong growth | |
| Strong growth | |
| Strongly improving | |
| Moderate | |
| High |
Analysts expect strong earnings and revenue growth for SNDK, with profitability improving.
WDC Forward outlook
| Metric | Outlook |
|---|---|
| Improving | |
| Strong growth | |
| Strong growth | |
| Strongly improving | |
| Moderate | |
| Moderate |
Analysts expect strong earnings and revenue growth for WDC, with profitability improving.
SNDK Earnings Per Share
| Quarter | TTM EPS | YoY |
|---|---|---|
| Forward | $247.30 | +97% |
| Q3 2026 | $125.61 | +$137.63 |
| Q2 2026 | $73.76 | +$85.07 |
| Q2 2025 | -$11.31 | -$6.65 |
SNDK has the edge over WDC in the latest year-over-year earnings comparison.
WDC Earnings Per Share
| Quarter | TTM EPS | YoY |
|---|---|---|
| Forward | $28.81 | +12% |
| Q3 2026 | $25.84 | +276% |
| Q2 2026 | $24.28 | +371% |
| Q1 2026 | $16.75 | +268% |
| Q4 2025 | $9.97 | +187% |
| Q3 2025 | $6.87 | +655% |
| Q2 2025 | $5.15 | +$7.76 |
| Q1 2025 | $4.55 | +$9.61 |
| Q4 2024 | $3.47 | +$10.69 |
WDC's earnings per share have climbed steadily: $25.84 over the past year, about four times what it earned the year before, and higher year over year for 10 quarters in a row. Its recent earnings include one-off gains.
SNDK Quarterly Revenue
| Quarter | Revenue | YoY |
|---|---|---|
| Q3 2026 | $11B | +378% |
| Q2 2026 | $9B | +372% |
| Q1 2026 | $6B | +251% |
| Q4 2025 | $3B | +61% |
| Q3 2025 | $2.3B | +23% |
| Q2 2025 | $1.9B | +8% |
| Q1 2025 | $1.7B | -0.6% |
| Q4 2024 | $1.9B | +13% |
SNDK has the edge over WDC on sales, with more consistent year-over-year improvement.
| Quarter | Margin | YoY |
|---|---|---|
| Q3 2026 | 80% | +72 points |
| Q2 2026 | 78% | +78 points |
| Q1 2026 | 69% | +180 points |
| Q4 2025 | 35% | +25 points |
| Q3 2025 | 7.6% | -9 points |
| Q2 2025 | 0.9% | N/A |
| Q1 2025 | -111% | -122 points |
| Q4 2024 | 10% | +6.6 points |
SNDK has the edge over WDC on profitability, with a higher operating margin.
WDC Quarterly Revenue
| Quarter | Revenue | YoY |
|---|---|---|
| Q3 2026 | $4.4B | +55% |
| Q2 2026 | $3.7B | +44% |
| Q1 2026 | $3.3B | +45% |
| Q4 2025 | $3B | -30% |
| Q3 2025 | $2.8B | -31% |
| Q2 2025 | $2.6B | -31% |
| Q1 2025 | $2.3B | -34% |
| Q4 2024 | $4.3B | +41% |
WDC's revenue is growing: $4.4B last quarter, up 55% from the same quarter a year ago.
| Quarter | Margin | YoY |
|---|---|---|
| Q3 2026 | 47% | +19 points |
| Q2 2026 | 42% | +16 points |
| Q1 2026 | 36% | +2.5 points |
| Q4 2025 | 30% | +10 points |
| Q3 2025 | 28% | +10 points |
| Q2 2025 | 26% | +20 points |
| Q1 2025 | 33% | +25 points |
| Q4 2024 | 20% | +27 points |
WDC's operating margin was 47% last quarter, up 19 points from the same quarter a year ago, near the top of its range since 2020.
SNDK Free Cash Flow
| Quarter | Free cash flow | YoY |
|---|---|---|
| Q3 2026 | $6.3B | +1340% |
| Q2 2026 | $7.1B | +14355% |
| Q1 2026 | $3B | +$3B |
| Q3 2025 | $438M | +$636M |
| Q2 2025 | $49M | +$217M |
| Q1 2025 | -$18M | +$23M |
| Q3 2024 | -$198M | -$157M |
SNDK generated $17.4B in free cash flow over the past year, more than ten times what it generated the year before.
WDC Free Cash Flow
| Quarter | Free cash flow | YoY |
|---|---|---|
| Q3 2026 | $1.4B | +130% |
| Q2 2026 | $1.3B | +90% |
| Q1 2026 | $978M | +158% |
| Q4 2025 | $653M | +128% |
| Q3 2025 | $599M | +$661M |
| Q2 2025 | $675M | +170% |
| Q1 2025 | $379M | +$418M |
| Q4 2024 | $287M | +$529M |
WDC has the edge over SNDK on cash flow, with more consistent year-over-year improvement.
SNDK Total Shares
| Period | Change % | Net change |
|---|---|---|
| Quarterly | -0.6% | -1M shares |
| 1 year | +3.4% | +5M shares |
| 3 years | +6.9% | +10M shares |
SNDK has 154M diluted shares, up 3.4% from a year ago.
| Quarter | Spent |
|---|---|
| Q3 2026 | $5B |
| Q3 2024 | — |
| Q2 2024 | — |
| Q1 2024 | — |
| Q4 2023 | — |
| Q3 2023 | — |
WDC Total Shares
| Period | Change % | Net change |
|---|---|---|
| Quarterly | +0.3% | +1M shares |
| 1 year | +2.1% | +8M shares |
| 3 years | +19% | +61M shares |
| 5 years | +22% | +68M shares |
| Available history | +29% | +86M shares |
WDC has the edge over SNDK on shareholder dilution, with a more favorable share count trend.
| Quarter | Spent |
|---|---|
| Q3 2026 | $1B |
| Q2 2026 | $672M |
| Q1 2026 | $752M |
| Q4 2025 | $615M |
| Q3 2025 | $553M |
| Q2 2020 | — |
| Q1 2020 | — |
| Q4 2019 | — |
WDC spent $3B buying back its own shares over the past year.
SNDK Net Leverage
| Quarter | Net Leverage | Status |
|---|---|---|
| Q3 2026 | -0.2x | Net Cash |
| Q2 2026 | -0.4x | Net Cash |
| Q1 2026 | -0.7x | Net Cash |
SNDK has the edge over WDC on leverage, with a lower net debt burden relative to earnings.
WDC Net Leverage
| Quarter | Net Leverage | Status |
|---|---|---|
| Q3 2026 | -0.1x | Net Cash |
| Q2 2026 | -0.1x | Net Cash |
| Q1 2026 | -0.1x | Net Cash |
| Q4 2025 | 0.8x | Very low |
| Q3 2025 | 0.8x | Very low |
| Q2 2025 | 0.8x | Very low |
| Q1 2025 | 1.3x | Healthy |
| Q4 2024 | 1.9x | Healthy |
WDC has more cash than debt.
SNDK Weekly Momentum
| Metric | Value | Status |
|---|---|---|
| RSI | 40.2 | Neutral |
| Stochastic | 10.6 | Oversold |
SNDK's weekly RSI is 40 (neutral) and its Stochastic is 11 (oversold).
WDC Weekly Momentum
| Metric | Value | Status |
|---|---|---|
| RSI | 41.5 | Neutral |
| Stochastic | 11.2 | Oversold |
WDC's weekly RSI is 41 (neutral) and its Stochastic is 11 (oversold).
SNDK PE vs Technology Sector
| Metric | SNDK | Sector median | Relative |
|---|---|---|---|
| PE | 7.5x | 28x | 73% below |
| PE % | 4 | 27 | 23 pts below |
SNDK has the edge over WDC on valuation relative to its sector.
WDC PE vs Technology Sector
| Metric | WDC | Sector median | Relative |
|---|---|---|---|
| PE | 12x | 28x | 57% below |
| PE % | 28 | 35 | 7 pts below |
WDC is trading at 12x earnings, a 57% discount to the Technology sector's median of 28x, though its recent earnings include one-off gains.
SNDK Weekly Moving Averages
| Moving average | MA price | Relative |
|---|---|---|
| 8 week MA | $1,317.5 | 29% below |
| 20 week MA | $1,465.4 | 36% below |
| 50 week MA | $1,119.6 | 16% below |
WDC has stronger trend alignment. SNDK is above 0 of 3 weekly averages versus WDC above 2 of 5.
WDC Weekly Moving Averages
| Moving average | MA price | Relative |
|---|---|---|
| 8 week MA | $360.8 | 14% below |
| 20 week MA | $438.4 | 29% below |
| 50 week MA | $380.4 | 18% below |
| 100 week MA | $226.8 | 37% above |
| 200 week MA | $133.7 | 133% above |
WDC has pulled back, but its long-term trend is still up: it's below its 8-, 20- and 50-week averages, but 133% above its 200-week average.
SNDK Yearly ROI
| Year | Start price | End price | ROI |
|---|---|---|---|
| 2025 | $50.4 | $250.1 | +396% |
| 2026 YTD | $250.1 | $937.5 | +275% |
SNDK has the edge over WDC on returns for 2026, with the stronger performance.
WDC Yearly ROI
| Year | Start price | End price | ROI |
|---|---|---|---|
| 2020 | $47.0 | $37.7 | -20% |
| 2021 | $37.7 | $46.2 | +23% |
| 2022 | $46.2 | $23.1 | -50% |
| 2023 | $23.1 | $39.6 | +71% |
| 2024 | $39.6 | $45.9 | +16% |
| 2025 | $45.9 | $181.5 | +296% |
| 2026 YTD | $181.5 | $311.2 | +71% |
WDC's yearly returns have swung widely, from +296% in 2025 to −50% in 2022. It's up 71% so far in 2026.