STX vs. WDC
STX (Seagate Technology plc) and WDC (Western Digital Corporation) are both stocks. Both operate in the Computer Hardware industry within the Technology sector. Over the past 10 years, STX returned 45.44%/yr vs 33.68%/yr for WDC. Their 0.71 correlation means they have sometimes moved together and sometimes differently.
Performance
STX vs. WDC - Performance Comparison
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Returns By Period
The year-to-date returns for both investments are quite close, with STX having a 211.64% return and WDC slightly higher at 216.50%. Over the past 10 years, STX has outperformed WDC with an annualized return of 45.44%, while WDC has yielded a comparatively lower 33.68% annualized return.
STX
- 1D
- 0.52%
- 1M
- 4.39%
- 6M
- 110.51%
- YTD
- 211.64%
- 1Y
- 457.59%
- 3Y*
- 141.31%
- 5Y*
- 62.43%
- 10Y*
- 45.44%
- ALL TIME*
- 24.03%
WDC
- 1D
- 2.21%
- 1M
- 1.08%
- 6M
- 117.90%
- YTD
- 216.50%
- 1Y
- 613.67%
- 3Y*
- 156.58%
- 5Y*
- 61.98%
- 10Y*
- 33.68%
- ALL TIME*
- 12.21%
Liquidity Comparison
| Position | Avg. Volume Value (2W) | Avg. Volume Value (1M) | Avg. Volume Value (3M) |
|---|---|---|---|
| $5.18B | $4.59B | $4.10B | |
| $3.73B | $3.88B | $4.67B |
STX vs. WDC - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
STX Seagate Technology plc | 211.64% | 225.26% | 4.06% | 69.12% | -51.42% | 87.50% | 10.14% | 62.14% | -2.90% | 16.67% |
WDC Western Digital Corporation | 216.50% | 283.68% | 13.86% | 65.99% | -51.62% | 17.73% | -10.89% | 77.14% | -51.90% | 19.83% |
Correlation
The correlation between STX and WDC is 0.90, meaning they have usually moved in the same direction, including during past declines.
| Correlation | |
|---|---|
Correlation (1Y) Focuses on recent behavior, but can change the most. | 0.90 |
Correlation (3Y) Balances recent behavior with more history. | 0.78 |
Correlation (5Y) Shows whether the relationship held over a longer period. | 0.78 |
Correlation (10Y) Provides a long-term view across more market conditions. | 0.73 |
Correlation (All Time) Calculated using the full available price history since Dec 11, 2002 | 0.71 |
The correlation between STX and WDC shifts across timeframes, from 0.71 (all time) to 0.90 (1 year), reflecting how their relationship changes across market environments.
Fundamentals
STX:
$191.97B
WDC:
$187.80B
STX:
$13.93
WDC:
$25.88
STX:
61.44
WDC:
21.06
STX:
0.61
WDC:
0.49
STX:
16.04
WDC:
11.60
STX:
$12.20B
WDC:
$11.78B
STX:
$5.56B
WDC:
$5.35B
STX:
$4.31B
WDC:
$10.88B
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Return for Risk
STX vs. WDC — Risk / Return Rank
STX
WDC
STX vs. WDC - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Seagate Technology plc (STX) and Western Digital Corporation (WDC). 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.
Values are calculated on a 1-year rolling basis and updated daily. Risk-adjusted metrics are more stable over longer periods — use the period switch above to explore them.
| STX | WDC | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.52 | ||
| Sortino ratioReturn per unit of downside risk | -0.29 | ||
| Omega ratioGain probability vs. loss probability | 1.58 | 1.63 | -0.05 |
| Calmar ratioReturn relative to maximum drawdown | 14.26 | 15.75 | -1.49 |
| Martin ratioReturn relative to average drawdown | 44.98 | 55.78 | -10.80 |
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Drawdowns
STX vs. WDC - Drawdown Comparison
The maximum STX drawdown since its inception was -88.74%, smaller than the maximum WDC drawdown of -96.20%. Use the drawdown chart below to compare losses from any high point for STX and WDC.
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Drawdown Indicators
| STX | WDC | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -88.74% | -96.20% | +7.46% |
Max Drawdown (1Y)Largest decline over 1 year | -31.81% | -38.08% | +6.27% |
Max Drawdown (3Y)Largest decline over 3 years | -40.00% | -49.65% | +9.65% |
Max Drawdown (5Y)Largest decline over 5 years | -56.99% | -56.06% | -0.93% |
Max Drawdown (10Y)Largest decline over 10 years | -56.99% | -70.49% | +13.50% |
Current DrawdownCurrent decline from peak | -21.69% | -26.99% | +5.30% |
Average DrawdownAverage peak-to-trough decline | -26.38% | -51.97% | +25.59% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 10.07% | 10.76% | -0.69% |
Volatility
STX vs. WDC - Volatility Comparison
The current volatility for Seagate Technology plc (STX) is 29.03%, while Western Digital Corporation (WDC) has a volatility of 31.37%. This indicates that STX experiences smaller price fluctuations and is considered to be less risky than WDC based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| STX | WDC | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 29.03% | 31.37% | -2.34% |
Volatility (6M)Calculated over the trailing 6-month period | 54.41% | 61.46% | -7.05% |
Volatility (1Y)Calculated over the trailing 1-year period | 72.34% | 77.35% | -5.01% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 47.22% | 52.08% | -4.86% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 42.76% | 49.88% | -7.12% |
Dividends
STX vs. WDC - Dividend Comparison
STX's dividend yield for the trailing twelve months is around 0.34%, more than WDC's 0.09% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
STX Seagate Technology plc | 0.34% | 1.05% | 3.27% | 3.28% | 5.32% | 2.40% | 4.21% | 4.27% | 6.53% | 6.02% | 6.60% | 6.14% |
WDC Western Digital Corporation | 0.09% | 0.19% | 0.00% | 0.00% | 0.00% | 0.00% | 1.81% | 2.36% | 5.41% | 2.51% | 2.94% | 3.33% |
Financials
STX vs. WDC - Financials Comparison
This section allows you to compare key financial metrics between Seagate Technology plc and Western Digital Corporation. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
STX vs. WDC - Profitability Comparison
STX - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Seagate Technology plc reported a gross profit of 1.90B and revenue of 3.63B. Therefore, the gross margin over that period was 52.3%.
WDC - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Aug 2026, Western Digital Corporation reported a gross profit of 1.68B and revenue of 3.34B. Therefore, the gross margin over that period was 50.2%.
STX - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Seagate Technology plc reported an operating income of 1.54B and revenue of 3.63B, resulting in an operating margin of 42.5%.
WDC - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Aug 2026, Western Digital Corporation reported an operating income of 1.14B and revenue of 3.34B, resulting in an operating margin of 34.0%.
STX - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Seagate Technology plc reported a net income of 1.29B and revenue of 3.63B, resulting in a net margin of 35.7%.
WDC - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Aug 2026, Western Digital Corporation reported a net income of 3.21B and revenue of 3.34B, resulting in a net margin of 96.0%.
Frequently Asked Questions
With a correlation of 0.90, STX and WDC move almost identically. Holding both adds very little diversification - you're essentially doubling your position in the same market segment. Choosing one is usually more capital-efficient.
WDC has higher volatility (31.37%) compared to STX (29.03%). In terms of maximum drawdown, STX dropped -88.74% vs WDC's -96.20%.
WDC currently has the higher Sharpe Ratio (7.81 vs 6.29), meaning it's delivered slightly more return per unit of risk over the trailing 12 months. However, this ranking shifts over time - use the Risk/Return Score above for a more comprehensive view that combines Sharpe, Sortino, and other measures used by quantitative funds.
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