COHR vs. PWR
COHR (Coherent, Inc.) and PWR (Quanta Services, Inc.) are both stocks. COHR operates in Scientific & Technical Instruments (Technology), while PWR operates in Engineering & Construction (Industrials). Over the past 10 years, COHR returned 35.09%/yr vs 40.58%/yr for PWR. At a 0.35 correlation, their price movements are largely independent.
Performance
COHR vs. PWR - Performance Comparison
Loading charts...
Returns By Period
In the year-to-date period, COHR achieves a 117.77% return, which is significantly higher than PWR's 64.46% return. Over the past 10 years, COHR has underperformed PWR with an annualized return of 35.09%, while PWR has yielded a comparatively higher 40.58% annualized return.
COHR
- 1D
- 6.62%
- 1M
- 19.89%
- YTD
- 117.77%
- 6M
- 116.25%
- 1Y
- 404.05%
- 3Y*
- 117.79%
- 5Y*
- 41.61%
- 10Y*
- 35.09%
PWR
- 1D
- -0.19%
- 1M
- -6.87%
- YTD
- 64.46%
- 6M
- 49.89%
- 1Y
- 92.19%
- 3Y*
- 56.18%
- 5Y*
- 49.77%
- 10Y*
- 40.58%
COHR vs. PWR - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
COHR Coherent, Inc. | 117.77% | 94.84% | 117.62% | 24.02% | -48.63% | -10.04% | 125.60% | 3.73% | -30.86% | 58.35% |
PWR Quanta Services, Inc. | 64.46% | 33.70% | 46.60% | 51.70% | 24.63% | 59.50% | 77.74% | 35.84% | -22.93% | 12.22% |
Correlation
The correlation between COHR and PWR is 0.53, 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 | 0.53 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.54 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.51 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.45 |
Correlation (All Time) Calculated using the full available price history since Feb 12, 1998 | 0.35 |
The correlation between COHR and PWR shifts across timeframes, from 0.35 (all time) to 0.54 (3 years), reflecting how their relationship changes across market environments.
Fundamentals
COHR:
$1.64K
PWR:
$7.29
COHR:
0.24
PWR:
95.17
COHR:
0.04
PWR:
4.72
COHR:
0.03
PWR:
3.51
COHR:
$1.81T
PWR:
$29.99B
COHR:
$1.76B
PWR:
$4.08B
COHR:
$960.76M
PWR:
$2.40B
Compare stocks, funds, or ETFs
Search for stocks, ETFs, and funds for a quick comparison or use the comparison tool for more options.
Return for Risk
COHR vs. PWR — Risk / Return Rank
COHR
PWR
COHR vs. PWR - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Coherent, Inc. (COHR) 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.
| COHR | PWR | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +3.06 | ||
| Sortino ratioReturn per unit of downside risk | +0.85 | ||
| Omega ratioGain probability vs. loss probability | 1.58 | 1.43 | +0.14 |
| Calmar ratioReturn relative to maximum drawdown | 15.36 | 7.45 | +7.92 |
| Martin ratioReturn relative to average drawdown | 42.88 | 17.97 | +24.91 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
Loading charts...
Sharpe Ratios by Period
| COHR | PWR | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 5.62 | 2.55 | +3.06 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.68 | 1.41 | -0.72 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.62 | 1.21 | -0.59 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.33 | 0.35 | -0.03 |
Drawdowns
COHR vs. PWR - Drawdown Comparison
The maximum COHR drawdown since its inception was -80.89%, smaller than the maximum PWR drawdown of -97.07%. Use the drawdown chart below to compare losses from any high point for COHR and PWR.
Loading charts...
Drawdown Indicators
| COHR | PWR | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -80.89% | -97.07% | +16.18% |
Max Drawdown (1Y)Largest decline over 1 year | -26.52% | -12.45% | -14.07% |
Max Drawdown (3Y)Largest decline over 3 years | -54.85% | -33.89% | -20.96% |
Max Drawdown (5Y)Largest decline over 5 years | -62.87% | -33.89% | -28.98% |
Max Drawdown (10Y)Largest decline over 10 years | -72.22% | -45.53% | -26.69% |
Current DrawdownCurrent decline from peak | -5.85% | -11.64% | +5.79% |
Average DrawdownAverage peak-to-trough decline | -35.03% | -46.86% | +11.83% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 9.48% | 5.15% | +4.33% |
Volatility
COHR vs. PWR - Volatility Comparison
Coherent, Inc. (COHR) has a higher volatility of 28.41% compared to Quanta Services, Inc. (PWR) at 11.16%. This indicates that COHR'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.
Loading charts...
Volatility by Period
| COHR | PWR | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 28.41% | 11.16% | +17.25% |
Volatility (6M)Calculated over the trailing 6-month period | 55.90% | 29.60% | +26.30% |
Volatility (1Y)Calculated over the trailing 1-year period | 72.65% | 36.37% | +36.28% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 61.36% | 35.62% | +25.74% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 56.43% | 33.70% | +22.73% |
Dividends
COHR vs. PWR - Dividend Comparison
COHR has not paid dividends to shareholders, while PWR's dividend yield for the trailing twelve months is around 0.06%.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 |
|---|---|---|---|---|---|---|---|---|---|
COHR Coherent, Inc. | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% | 0.00% |
PWR Quanta Services, Inc. | 0.06% | 0.09% | 0.09% | 0.15% | 0.25% | 0.16% | 0.29% | 0.42% | 0.13% |
Financials
COHR vs. PWR - Financials Comparison
This section allows you to compare key financial metrics between Coherent, 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
COHR vs. PWR - Profitability Comparison
COHR - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, Coherent, Inc. reported a gross profit of 0.00 and revenue of 1.81T. Therefore, the gross margin over that period was 0.0%.
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%.
COHR - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, Coherent, Inc. reported an operating income of 0.00 and revenue of 1.81T, resulting in an operating margin of 0.0%.
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%.
COHR - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, Coherent, Inc. reported a net income of 191.40B and revenue of 1.81T, resulting in a net margin of 10.6%.
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
COHR and PWR have a correlation of 0.53, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
COHR has higher volatility (28.41%) compared to PWR (11.16%). In terms of maximum drawdown, COHR dropped -80.89% vs PWR's -97.07%.
COHR currently has the higher Sharpe Ratio (5.62 vs 2.55), 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.
Find the right allocation for COHR and PWR
Add both to a portfolio and optimize allocations for your target — whether that's maximizing returns, minimizing drawdowns, or balancing risk across holdings.
Open Portfolio Optimizer