WDC vs. PWR
WDC (Western Digital Corporation) and PWR (Quanta Services, Inc.) are both stocks. WDC operates in Computer Hardware (Technology), while PWR operates in Engineering & Construction (Industrials). Over the past 10 years, WDC returned 33.87%/yr vs 41.17%/yr for PWR. At a 0.35 correlation, their price movements are largely independent.
Performance
WDC vs. PWR - Performance Comparison
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Returns By Period
In the year-to-date period, WDC achieves a 227.01% return, which is significantly higher than PWR's 67.76% return. Over the past 10 years, WDC has underperformed PWR with an annualized return of 33.87%, while PWR has yielded a comparatively higher 41.17% annualized return.
WDC
- 1D
- 6.35%
- 1M
- 13.96%
- YTD
- 227.01%
- 6M
- 219.46%
- 1Y
- 911.92%
- 3Y*
- 164.18%
- 5Y*
- 58.50%
- 10Y*
- 33.87%
PWR
- 1D
- 3.58%
- 1M
- -8.53%
- YTD
- 67.76%
- 6M
- 61.62%
- 1Y
- 97.52%
- 3Y*
- 56.60%
- 5Y*
- 50.60%
- 10Y*
- 41.17%
WDC vs. PWR - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
WDC Western Digital Corporation | 227.01% | 283.68% | 13.86% | 65.99% | -51.62% | 17.73% | -10.89% | 77.14% | -51.90% | 19.83% |
PWR Quanta Services, Inc. | 67.76% | 33.70% | 46.60% | 51.70% | 24.63% | 59.50% | 77.74% | 35.84% | -22.93% | 12.22% |
Correlation
The correlation between WDC and PWR is 0.47, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.47 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.46 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.45 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.43 |
Correlation (All Time) Calculated using the full available price history since Feb 12, 1998 | 0.35 |
The correlation between WDC and PWR shifts across timeframes, from 0.35 (all time) to 0.47 (1 year), reflecting how their relationship changes across market environments.
Fundamentals
WDC:
$23.29
PWR:
$7.29
WDC:
24.17
PWR:
97.08
WDC:
0.56
PWR:
4.81
WDC:
13.31
PWR:
3.58
WDC:
$11.78B
PWR:
$29.99B
WDC:
$5.35B
PWR:
$4.08B
WDC:
$10.88B
PWR:
$2.40B
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Return for Risk
WDC vs. PWR — Risk / Return Rank
WDC
PWR
WDC vs. PWR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Western Digital Corporation (WDC) and Quanta Services, Inc. (PWR). 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.
| WDC | PWR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +11.43 | ||
| Sortino ratioReturn per unit of downside risk | +3.57 | ||
| Omega ratioGain probability vs. loss probability | 1.95 | 1.44 | +0.50 |
| Calmar ratioReturn relative to maximum drawdown | 44.74 | 5.73 | +39.01 |
| Martin ratioReturn relative to average drawdown | 151.81 | 18.09 | +133.73 |
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Drawdowns
WDC vs. PWR - Drawdown Comparison
The maximum WDC drawdown since its inception was -96.20%, roughly equal to the maximum PWR drawdown of -97.07%. Use the drawdown chart below to compare losses from any high point for WDC and PWR.
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Drawdown Indicators
| WDC | PWR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -96.20% | -97.07% | +0.87% |
Max Drawdown (1Y)Largest decline over 1 year | -20.59% | -17.11% | -3.48% |
Max Drawdown (3Y)Largest decline over 3 years | -49.65% | -33.89% | -15.76% |
Max Drawdown (5Y)Largest decline over 5 years | -59.68% | -33.89% | -25.79% |
Max Drawdown (10Y)Largest decline over 10 years | -70.49% | -45.53% | -24.96% |
Current DrawdownCurrent decline from peak | -5.22% | -9.87% | +4.65% |
Average DrawdownAverage peak-to-trough decline | -52.07% | -46.84% | -5.23% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 6.06% | 5.41% | +0.65% |
Volatility
WDC vs. PWR - Volatility Comparison
Western Digital Corporation (WDC) has a higher volatility of 21.76% compared to Quanta Services, Inc. (PWR) at 13.07%. This indicates that WDC's price experiences larger fluctuations and is considered to be riskier than PWR based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| WDC | PWR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 21.76% | 13.07% | +8.69% |
Volatility (6M)Calculated over the trailing 6-month period | 53.55% | 30.74% | +22.81% |
Volatility (1Y)Calculated over the trailing 1-year period | 65.47% | 37.12% | +28.35% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 48.86% | 35.79% | +13.07% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 48.62% | 33.78% | +14.84% |
Dividends
WDC vs. PWR - Dividend Comparison
WDC's dividend yield for the trailing twelve months is around 0.09%, more than PWR's 0.06% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PWR Quanta Services, Inc. | 0.06% | 0.09% | 0.09% | 0.15% | 0.25% | 0.16% | 0.29% | 0.42% | 0.13% | 0.00% | 0.00% | 0.00% |
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
WDC vs. PWR - Financials Comparison
This section allows you to compare key financial metrics between Western Digital Corporation and Quanta Services, Inc.. 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
WDC vs. PWR - Profitability Comparison
WDC - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 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%.
PWR - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Quanta Services, Inc. reported a gross profit of 1.11B and revenue of 7.87B. Therefore, the gross margin over that period was 14.1%.
WDC - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Western Digital Corporation reported an operating income of 1.14B and revenue of 3.34B, resulting in an operating margin of 34.0%.
PWR - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Quanta Services, Inc. reported an operating income of 338.78M and revenue of 7.87B, resulting in an operating margin of 4.3%.
WDC - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Western Digital Corporation reported a net income of 3.21B and revenue of 3.34B, resulting in a net margin of 96.0%.
PWR - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Quanta Services, Inc. reported a net income of 220.63M and revenue of 7.87B, resulting in a net margin of 2.8%.
Frequently Asked Questions
WDC and PWR have a correlation of 0.47, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
WDC has higher volatility (21.76%) compared to PWR (13.07%). In terms of maximum drawdown, WDC dropped -96.20% vs PWR's -97.07%.
WDC currently has the higher Sharpe Ratio (14.07 vs 2.64), 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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