NPO vs. PWR
NPO (EnPro Industries, Inc.) and PWR (Quanta Services, Inc.) are both stocks. Both are in the Industrials sector — NPO in Specialty Industrial Machinery, PWR in Engineering & Construction. Over the past 10 years, NPO returned 22.44%/yr vs 38.01%/yr for PWR. At a 0.46 correlation, their price movements are largely independent.
Performance
NPO vs. PWR - Performance Comparison
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Returns By Period
The year-to-date returns for both stocks are quite close, with NPO having a 51.37% return and PWR slightly lower at 49.60%. Over the past 10 years, NPO has underperformed PWR with an annualized return of 22.44%, while PWR has yielded a comparatively higher 38.01% annualized return.
NPO
- 1D
- -1.59%
- 1M
- -9.72%
- 6M
- 34.08%
- YTD
- 51.37%
- 1Y
- 59.38%
- 3Y*
- 32.79%
- 5Y*
- 29.98%
- 10Y*
- 22.44%
PWR
- 1D
- -2.75%
- 1M
- -12.26%
- 6M
- 41.02%
- YTD
- 49.60%
- 1Y
- 62.30%
- 3Y*
- 47.02%
- 5Y*
- 48.55%
- 10Y*
- 38.01%
NPO vs. PWR - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
NPO EnPro Industries, Inc. | 51.37% | 24.95% | 10.85% | 45.63% | -0.19% | 47.48% | 15.05% | 13.05% | -34.87% | 40.54% |
PWR Quanta Services, Inc. | 49.60% | 33.70% | 46.60% | 51.70% | 24.63% | 59.50% | 77.74% | 35.84% | -22.93% | 12.22% |
Correlation
The correlation between NPO and PWR is 0.55, which is moderate. They share some common price drivers but move independently often enough to provide real diversification benefit when combined.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.55 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.51 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.52 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.54 |
Correlation (All Time) Calculated using the full available price history since May 24, 2002 | 0.46 |
The correlation between NPO and PWR has been stable across timeframes, ranging from 0.46 to 0.55 - a consistent structural relationship.
Fundamentals
NPO:
$6.83B
PWR:
$94.69B
NPO:
$3.07
PWR:
$7.28
NPO:
105.31
PWR:
86.68
NPO:
3.87
PWR:
4.29
NPO:
3.90
PWR:
3.19
NPO:
$1.17B
PWR:
$29.99B
NPO:
$499.30M
PWR:
$4.08B
NPO:
$127.70M
PWR:
$2.40B
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Return for Risk
NPO vs. PWR — Risk / Return Rank
NPO
PWR
NPO vs. PWR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for EnPro Industries, Inc. (NPO) 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.
| NPO | PWR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +0.01 | ||
| Sortino ratioReturn per unit of downside risk | -0.12 | ||
| Omega ratioGain probability vs. loss probability | 1.26 | 1.29 | -0.03 |
| Calmar ratioReturn relative to maximum drawdown | 3.40 | 3.19 | +0.21 |
| Martin ratioReturn relative to average drawdown | 10.09 | 9.42 | +0.68 |
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Drawdowns
NPO vs. PWR - Drawdown Comparison
The maximum NPO drawdown since its inception was -73.26%, smaller than the maximum PWR drawdown of -97.07%. Use the drawdown chart below to compare losses from any high point for NPO and PWR.
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Drawdown Indicators
| NPO | PWR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -73.26% | -97.07% | +23.81% |
Max Drawdown (1Y)Largest decline over 1 year | -17.56% | -19.63% | +2.07% |
Max Drawdown (3Y)Largest decline over 3 years | -33.72% | -33.89% | +0.17% |
Max Drawdown (5Y)Largest decline over 5 years | -33.80% | -33.89% | +0.09% |
Max Drawdown (10Y)Largest decline over 10 years | -65.78% | -45.53% | -20.25% |
Current DrawdownCurrent decline from peak | -16.58% | -19.63% | +3.05% |
Average DrawdownAverage peak-to-trough decline | -19.90% | -46.73% | +26.83% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 5.90% | 6.64% | -0.74% |
Volatility
NPO vs. PWR - Volatility Comparison
EnPro Industries, Inc. (NPO) has a higher volatility of 14.37% compared to Quanta Services, Inc. (PWR) at 12.49%. This indicates that NPO'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
| NPO | PWR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 14.37% | 12.49% | +1.88% |
Volatility (6M)Calculated over the trailing 6-month period | 28.16% | 31.01% | -2.85% |
Volatility (1Y)Calculated over the trailing 1-year period | 36.84% | 38.95% | -2.11% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 35.44% | 36.12% | -0.68% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 37.64% | 33.89% | +3.75% |
Dividends
NPO vs. PWR - Dividend Comparison
NPO's dividend yield for the trailing twelve months is around 0.39%, more than PWR's 0.07% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
NPO EnPro Industries, Inc. | 0.39% | 0.58% | 0.70% | 0.74% | 1.03% | 0.98% | 1.38% | 1.50% | 1.60% | 0.94% | 1.25% | 1.82% |
PWR Quanta Services, Inc. | 0.07% | 0.09% | 0.09% | 0.15% | 0.25% | 0.16% | 0.29% | 0.42% | 0.13% | 0.00% | 0.00% | 0.00% |
Financials
NPO vs. PWR - Financials Comparison
This section allows you to compare key financial metrics between EnPro Industries, Inc. 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
NPO vs. PWR - Profitability Comparison
NPO - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jul 2026, EnPro Industries, Inc. reported a gross profit of 130.00M and revenue of 303.00M. Therefore, the gross margin over that period was 42.9%.
PWR - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jul 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%.
NPO - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jul 2026, EnPro Industries, Inc. reported an operating income of 43.50M and revenue of 303.00M, resulting in an operating margin of 14.4%.
PWR - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jul 2026, Quanta Services, Inc. reported an operating income of 338.78M and revenue of 7.87B, resulting in an operating margin of 4.3%.
NPO - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jul 2026, EnPro Industries, Inc. reported a net income of 27.40M and revenue of 303.00M, resulting in a net margin of 9.0%.
PWR - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jul 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
NPO and PWR have a correlation of 0.55, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
NPO has higher volatility (14.37%) compared to PWR (12.49%). In terms of maximum drawdown, NPO dropped -73.26% vs PWR's -97.07%.
NPO currently has the higher Sharpe Ratio (1.62 vs 1.61), 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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