SNDK vs. WDC: Sandisk vs. Western Digital Stock Comparison
How do Sandisk (SNDK) and Western Digital (WDC) stack up? This page sets them side by side across company profile, performance and risk, profitability, growth, financial strength, dividends, and valuation, with selected fundamentals also measured against each stock's industry-group peers.
Company Profile
Sandisk (SNDK) and Western Digital (WDC) are both classified in the Technology Hardware, Storage & Peripherals sub-industry within the broader Technology Hardware, Storage & Peripherals industry, placing them in the closest GICS peer bucket.
Western Digital (WDC) carries decades of public-market history since October 31, 1978, while Sandisk (SNDK) listed on February 13, 2025 — long-window comparisons have far more historical data on the WDC side.
| Profile Item | SNDK | WDC |
|---|---|---|
| Name | SanDisk Corporation | Western Digital Corporation |
| Country/Region | United States | United States |
| GICS Sector | Information Technology | Information Technology |
| GICS Industry Group | Technology Hardware & Equipment | Technology Hardware & Equipment |
| GICS Industry | Technology Hardware, Storage & Peripherals | Technology Hardware, Storage & Peripherals |
| GICS Sub-Industry | Technology Hardware, Storage & Peripherals | Technology Hardware, Storage & Peripherals |
| Market Capitalization | 336.72 billion USD | 220.16 billion USD |
| Currency | USD | USD |
| Exchange | Nasdaq | Nasdaq |
| Listing Date | February 13, 2025 | October 31, 1978 |
| Security Type | Common Stock | Common Stock |
Price Performance
Cumulative Growth
Trailing Returns
Performance Metrics
| Metric | SNDK | WDC |
|---|---|---|
| Total Return (1Y) | 4,913.74% | 900.86% |
Risk Profile
Drawdown History
Risk Metrics
| Metric | SNDK | WDC |
|---|---|---|
| Volatility (1Y, Annualized) | 104.73% | 70.78% |
| Beta (5Y) | 4.74 | 2.12 |
| Avg. Volume (3M) | 14.04M | 8.45M |
Risk-Adjusted Performance
Risk-Return Positioning
Profitability
ROE (TTM)
Both companies show strong equity returns, but Western Digital (WDC) at 85.92% is the standout with ROE above its industry range; Sandisk (SNDK) at 39.30% also sits in the top quartile.
SNDK
Technology Hardware & Equipment industry group
39.30%
- Max
- 44.16%
- SNDK
- 39.30%
- Q3
- 19.25%
- Median
- 10.96%
- Q1
- 0.71%
- Min
- -25.92%
WDC
Technology Hardware & Equipment industry group
85.92%
- WDC
- 85.92%
- Max
- 44.16%
- Q3
- 19.25%
- Median
- 10.96%
- Q1
- 0.71%
- Min
- -25.92%
Net Margin (TTM)
Both Sandisk (SNDK) at 34.19% and Western Digital (WDC) at 55.29% keep an unusually large share of revenue as bottom-line profit — each net margin clears its industry’s benchmark range.
SNDK
Technology Hardware & Equipment industry group
34.19%
- SNDK
- 34.19%
- Max
- 30.43%
- Q3
- 12.33%
- Median
- 4.57%
- Q1
- 0.00%
- Min
- -14.09%
WDC
Technology Hardware & Equipment industry group
55.29%
- WDC
- 55.29%
- Max
- 30.43%
- Q3
- 12.33%
- Median
- 4.57%
- Q1
- 0.00%
- Min
- -14.09%
Operating Margin (TTM)
Before financing and tax, both Sandisk (SNDK) at 69.98% and Western Digital (WDC) at 37.01% run unusually efficient core operations — each operating margin clears its industry’s benchmark range.
SNDK
Technology Hardware & Equipment industry group
69.98%
- SNDK
- 69.98%
- Max
- 35.67%
- Q3
- 15.50%
- Median
- 6.62%
- Q1
- 1.99%
- Min
- -18.24%
WDC
Technology Hardware & Equipment industry group
37.01%
- WDC
- 37.01%
- Max
- 35.67%
- Q3
- 15.50%
- Median
- 6.62%
- Q1
- 1.99%
- Min
- -18.24%
Profitability Metrics
| Metric | SNDK | WDC |
|---|---|---|
| ROE (TTM) | 39.30% | 85.92% |
| ROA (TTM) | 22.82% | 14.65% |
| Net Margin (TTM) | 34.19% | 55.29% |
| Operating Margin (TTM) | 69.98% | 37.01% |
| Gross Margin (TTM) | 56.04% | 45.43% |
Growth
Revenue Growth
Revenue Growth Metrics
| Metric | SNDK | WDC |
|---|---|---|
| Revenue Growth (YoY) | 10.39% | 50.70% |
| Revenue Growth (3Y CAGR) | -- | -20.28% |
EPS Growth
EPS Growth Metrics
| Metric | SNDK | WDC |
|---|---|---|
| EPS Growth (YoY) | -- | -- |
| EPS Growth (3Y CAGR) | -- | 2.66% |
Financial Strength
Current Ratio (MRQ)
Western Digital (WDC) at 1.49 keeps current ratio within its industry’s typical mid-range, while Sandisk (SNDK) at 4.78 sits above its industry’s typical mid-range — comfortable liquidity, though possibly with more idle current assets relative to peers.
SNDK
Technology Hardware & Equipment industry group
4.78
- Max
- 5.80
- SNDK
- 4.78
- Q3
- 3.18
- Median
- 1.90
- Q1
- 1.27
- Min
- 0.40
WDC
Technology Hardware & Equipment industry group
1.49
- Max
- 5.80
- Q3
- 3.18
- Median
- 1.90
- WDC
- 1.49
- Q1
- 1.27
- Min
- 0.40
Debt / Equity (MRQ)
Sandisk (SNDK) at 0.02 keeps leverage in the lower industry quartile, while Western Digital (WDC) at 0.18 runs a more typical debt-to-equity mix.
SNDK
Technology Hardware & Equipment industry group
0.02
- Max
- 2.02
- Q3
- 0.88
- Median
- 0.31
- Q1
- 0.06
- SNDK
- 0.02
- Min
- 0.00
WDC
Technology Hardware & Equipment industry group
0.18
- Max
- 2.02
- Q3
- 0.88
- Median
- 0.31
- WDC
- 0.18
- Q1
- 0.06
- Min
- 0.00
Financial Strength Metrics
| Metric | SNDK | WDC |
|---|---|---|
| Current Ratio (MRQ) | 4.78 | 1.49 |
| Debt / Equity (MRQ) | 0.02 | 0.18 |
| Net Debt / EBITDA | -0.63 | -0.39 |
Dividends
Dividend Yield (TTM)
Sandisk (SNDK) pays no dividend (yield 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Western Digital (WDC) reports a yield of 0.07%, ranking against industry peers normally.
SNDK
Technology Hardware & Equipment industry group
0.00%
- Max
- 0.72%
- Q3
- 0.35%
- SNDK
- 0.00%
- Median
- 0.00%
- Q1
- 0.00%
- Min
- 0.00%
WDC
Technology Hardware & Equipment industry group
0.07%
- Max
- 0.72%
- Q3
- 0.35%
- WDC
- 0.07%
- Median
- 0.00%
- Q1
- 0.00%
- Min
- 0.00%
Dividend Payout Ratio (TTM)
Sandisk (SNDK) pays no dividend (payout 0.00%) — it may be reinvesting, using buybacks, or simply not returning cash through dividends. Meanwhile Western Digital (WDC) reports a payout of 2.69%, ranking against industry peers normally.
SNDK
Technology Hardware & Equipment industry group
0.00%
- Max
- 32.92%
- Q3
- 13.87%
- SNDK
- 0.00%
- Median
- 0.00%
- Q1
- 0.00%
- Min
- 0.00%
WDC
Technology Hardware & Equipment industry group
2.69%
- Max
- 32.92%
- Q3
- 13.87%
- WDC
- 2.69%
- Median
- 0.00%
- Q1
- 0.00%
- Min
- 0.00%
Dividend Metrics
| Metric | SNDK | WDC |
|---|---|---|
| Dividend Yield (TTM) | 0.00% | 0.07% |
| Dividend Payout Ratio (TTM) | 0.00% | 2.69% |
Valuation
P/E Ratio (TTM)
Both Sandisk (SNDK) at 77.52 and Western Digital (WDC) at 38.18 land around their industries’ usual P/E ratio levels — neither is getting a clear earnings-multiple discount or premium versus peers.
SNDK
Technology Hardware & Equipment industry group
77.52
- Max
- 164.07
- Q3
- 82.72
- SNDK
- 77.52
- Median
- 38.67
- Q1
- 23.21
- Min
- 8.13
WDC
Technology Hardware & Equipment industry group
38.18
- Max
- 164.07
- Q3
- 82.72
- Median
- 38.67
- WDC
- 38.18
- Q1
- 23.21
- Min
- 8.13
P/S Ratio (TTM)
Both look expensive on sales: Western Digital (WDC) at 18.69 sits in the upper P/S ratio quartile, and Sandisk (SNDK) at 25.54 prices even higher, above its industry range.
SNDK
Technology Hardware & Equipment industry group
25.54
- SNDK
- 25.54
- Max
- 18.69
- Q3
- 8.50
- Median
- 3.88
- Q1
- 1.49
- Min
- 0.00
WDC
Technology Hardware & Equipment industry group
18.69
- WDC
- 18.69
- Max
- 18.69
- Q3
- 8.50
- Median
- 3.88
- Q1
- 1.49
- Min
- 0.00
P/B Ratio (MRQ)
Measured against book value, both Sandisk (SNDK) at 24.43 and Western Digital (WDC) at 30.54 look expensive — each P/B ratio sits above its industry’s benchmark range.
SNDK
Technology Hardware & Equipment industry group
24.43
- SNDK
- 24.43
- Max
- 19.99
- Q3
- 9.52
- Median
- 4.43
- Q1
- 2.28
- Min
- -3.84
WDC
Technology Hardware & Equipment industry group
30.54
- WDC
- 30.54
- Max
- 19.99
- Q3
- 9.52
- Median
- 4.43
- Q1
- 2.28
- Min
- -3.84
Valuation Metrics
| Metric | SNDK | WDC |
|---|---|---|
| P/E Ratio (TTM) | 77.52 | 38.18 |
| P/S Ratio (TTM) | 25.54 | 18.69 |
| P/B Ratio (MRQ) | 24.43 | 30.54 |
| Free Cash Flow Yield (TTM) | 0.67% | 0.94% |