WDC vs. SNDK

Last updated Apr 2, 2026

Compare and contrast key facts about Western Digital Corporation (WDC) and Sandisk Corp (SNDK).

Performance

WDC vs. SNDK - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in Western Digital Corporation (WDC) and Sandisk Corp (SNDK). The values are adjusted to include any dividend payments, if applicable.

WDC vs. SNDK - Yearly Performance Comparison

	2026 (YTD)	2025
WDC Western Digital Corporation	72.91%	252.78%
SNDK Sandisk Corp	191.82%	388.44%

Fundamentals

Market Cap WDC : $111.95B SNDK : $108.07B
EPS WDC : $10.25 SNDK : -$6.94
PS Ratio WDC : 10.30 SNDK : 11.64
PB Ratio WDC : 15.74 SNDK : 10.58
Total Revenue (TTM) WDC : $10.73B SNDK : $8.93B
Gross Profit (TTM) WDC : $4.59B SNDK : $3.11B
EBITDA (TTM) WDC : $4.32B SNDK : -$589.00M

Returns By Period

In the year-to-date period, WDC achieves a 72.91% return, which is significantly lower than SNDK's 191.82% return.

WDC

• 1D: 10.07%
• 1M: 10.29%
• YTD: 72.91%
• 6M: 128.28%
• 1Y: 631.27%
• 3Y*: 118.99%
• 5Y*: 40.85%
• 10Y*: 25.55%

SNDK

• 1D: 9.03%
• 1M: 11.90%
• YTD: 191.82%
• 6M: 471.94%
• 1Y: 1,339.89%
• 3Y*: —
• 5Y*: —
• 10Y*: —

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

WDC vs. SNDK — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

WDC

WDC Risk / Return Rank: 99
WDC Sharpe Ratio Rank: 100
WDC Sortino Ratio Rank: 99
WDC Omega Ratio Rank: 98
WDC Calmar Ratio Rank: 100
WDC Martin Ratio Rank: 100

SNDK

SNDK Risk / Return Rank: 99
SNDK Sharpe Ratio Rank: 100
SNDK Sortino Ratio Rank: 99
SNDK Omega Ratio Rank: 98
SNDK Calmar Ratio Rank: 100
SNDK Martin Ratio Rank: 100

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

WDC vs. SNDK - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for Western Digital Corporation (WDC) and Sandisk Corp (SNDK). Risk-adjusted metrics are performance indicators that assess an investment's returns in relation to its risk, enabling a more accurate comparison of different investment options.

	WDC	SNDK	Difference
Sharpe ratio Return per unit of total volatility	9.52	13.55	-4.03
Sortino ratio Return per unit of downside risk	5.56	5.32	+0.24
Omega ratio Gain probability vs. loss probability	1.83	1.77	+0.05
Calmar ratio Return relative to maximum drawdown	23.77	35.26	-11.48
Martin ratio Return relative to average drawdown	92.71	88.02	+4.69
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

WDC vs. SNDK - Sharpe Ratio Comparison

The current WDC Sharpe Ratio is 9.52, which is comparable to the SNDK Sharpe Ratio of 13.55. The chart below compares the historical Sharpe Ratios of WDC and SNDK, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	WDC	SNDK	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	9.52	13.55	-4.03
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.86	—	—
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.53	—	—
Sharpe Ratio (All Time) Calculated using the full available price history	0.18	10.44	-10.27

Correlation

The correlation between WDC and SNDK is 0.60, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.

Dividends

WDC vs. SNDK - Dividend Comparison

WDC's dividend yield for the trailing twelve months is around 0.15%, while SNDK has not paid dividends to shareholders.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
WDC Western Digital Corporation	0.15%	0.19%	0.00%	0.00%	0.00%	0.00%	1.81%	2.36%	5.41%	2.51%	2.94%	3.33%
SNDK Sandisk Corp	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%	0.00%

Drawdowns

WDC vs. SNDK - Drawdown Comparison

The maximum WDC drawdown since its inception was -96.20%, which is greater than SNDK's maximum drawdown of -47.50%. Use the drawdown chart below to compare losses from any high point for WDC and SNDK.

Drawdown Indicators

	WDC	SNDK	Difference
Max Drawdown Largest peak-to-trough decline	-96.20%	-47.50%	-48.70%
Max Drawdown (1Y) Largest decline over 1 year	-26.90%	-37.86%	+10.96%
Max Drawdown (5Y) Largest decline over 5 years	-60.85%	—	—
Max Drawdown (10Y) Largest decline over 10 years	-70.49%	—	—
Current Drawdown Current decline from peak	-6.06%	-10.28%	+4.22%
Average Drawdown Average peak-to-trough decline	-52.32%	-15.40%	-36.92%
Ulcer Index Depth and duration of drawdowns from previous peaks	6.90%	15.39%	-8.49%

Volatility

WDC vs. SNDK - Volatility Comparison

The current volatility for Western Digital Corporation (WDC) is 25.05%, while Sandisk Corp (SNDK) has a volatility of 30.47%. This indicates that WDC experiences smaller price fluctuations and is considered to be less risky than SNDK based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	WDC	SNDK	Difference
Volatility (1M) Calculated over the trailing 1-month period	25.05%	30.47%	-5.42%
Volatility (6M) Calculated over the trailing 6-month period	55.31%	80.77%	-25.46%
Volatility (1Y) Calculated over the trailing 1-year period	66.91%	100.02%	-33.11%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	47.91%	97.99%	-50.08%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	48.28%	97.99%	-49.71%

Financials

WDC vs. SNDK - Profitability Comparison

The chart below illustrates the profitability comparison between Western Digital Corporation and Sandisk Corp over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

WDC - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Western Digital Corporation reported a gross profit of 1.38B and revenue of 3.02B. Therefore, the gross margin over that period was 45.7%.

SNDK - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, Sandisk Corp reported a gross profit of 1.54B and revenue of 3.03B. Therefore, the gross margin over that period was 50.9%.

WDC - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Western Digital Corporation reported an operating income of 963.00M and revenue of 3.02B, resulting in an operating margin of 31.9%.

SNDK - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, Sandisk Corp reported an operating income of 1.07B and revenue of 3.03B, resulting in an operating margin of 35.2%.

WDC - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Western Digital Corporation reported a net income of 1.84B and revenue of 3.02B, resulting in a net margin of 61.1%.

SNDK - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, Sandisk Corp reported a net income of 803.00M and revenue of 3.03B, resulting in a net margin of 26.6%.