PNW vs. VOO
PNW (Pinnacle West Capital Corporation) is a stock, while VOO (Vanguard S&P 500 ETF) is S&P 500 fund tracking the S&P 500 Index. Over the past 10 years, PNW returned 7.07%/yr vs 15.55%/yr for VOO. At a 0.33 correlation, their price movements are largely independent.
Performance
PNW vs. VOO - Performance Comparison
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Returns By Period
In the year-to-date period, PNW achieves a 15.41% return, which is significantly higher than VOO's 11.34% return. Over the past 10 years, PNW has underperformed VOO with an annualized return of 7.07%, while VOO has yielded a comparatively higher 15.55% annualized return.
PNW
- 1D
- 1.10%
- 1M
- -0.81%
- YTD
- 15.41%
- 6M
- 16.22%
- 1Y
- 16.66%
- 3Y*
- 13.60%
- 5Y*
- 7.53%
- 10Y*
- 7.07%
VOO
- 1D
- 0.39%
- 1M
- 4.62%
- YTD
- 11.34%
- 6M
- 11.27%
- 1Y
- 28.62%
- 3Y*
- 22.68%
- 5Y*
- 13.98%
- 10Y*
- 15.55%
PNW vs. VOO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PNW Pinnacle West Capital Corporation | 15.41% | 8.92% | 23.46% | -1.18% | 13.01% | -7.78% | -7.68% | 9.06% | 3.58% | 12.67% |
VOO Vanguard S&P 500 ETF | 11.34% | 17.82% | 24.98% | 26.32% | -18.17% | 28.79% | 18.32% | 31.37% | -4.50% | 21.77% |
Correlation
The correlation between PNW and VOO is -0.06, meaning there is essentially no relationship between their price movements. Each responds to its own set of market drivers, making them strong candidates for combining in a diversified portfolio.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | -0.06 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.08 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.20 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.24 |
Correlation (All Time) Calculated using the full available price history since Sep 10, 2010 | 0.33 |
The correlation between PNW and VOO shifts across timeframes, from -0.06 (1 year) to 0.33 (all time), reflecting how their relationship changes across market environments.
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Return for Risk
PNW vs. VOO — Risk / Return Rank
PNW
VOO
PNW vs. VOO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Pinnacle West Capital Corporation (PNW) and Vanguard S&P 500 ETF (VOO). 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.
| PNW | VOO | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -1.39 | ||
| Sortino ratioReturn per unit of downside risk | -1.73 | ||
| Omega ratioGain probability vs. loss probability | 1.18 | 1.44 | -0.26 |
| Calmar ratioReturn relative to maximum drawdown | 1.98 | 3.23 | -1.25 |
| Martin ratioReturn relative to average drawdown | 4.76 | 15.03 | -10.27 |
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month. | |||
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Sharpe Ratios by Period
| PNW | VOO | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 1.05 | 2.44 | -1.39 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.37 | 0.84 | -0.46 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.31 | 0.87 | -0.55 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.30 | 0.89 | -0.59 |
Drawdowns
PNW vs. VOO - Drawdown Comparison
The maximum PNW drawdown since its inception was -79.18%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for PNW and VOO.
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Drawdown Indicators
| PNW | VOO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -79.18% | -33.99% | -45.19% |
Max Drawdown (1Y)Largest decline over 1 year | -8.43% | -8.90% | +0.47% |
Max Drawdown (3Y)Largest decline over 3 years | -19.52% | -18.69% | -0.83% |
Max Drawdown (5Y)Largest decline over 5 years | -28.14% | -24.52% | -3.62% |
Max Drawdown (10Y)Largest decline over 10 years | -39.28% | -33.99% | -5.29% |
Current DrawdownCurrent decline from peak | -2.95% | -0.32% | -2.63% |
Average DrawdownAverage peak-to-trough decline | -14.60% | -3.69% | -10.91% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.51% | 1.91% | +1.60% |
Volatility
PNW vs. VOO - Volatility Comparison
Pinnacle West Capital Corporation (PNW) has a higher volatility of 5.09% compared to Vanguard S&P 500 ETF (VOO) at 2.78%. This indicates that PNW's price experiences larger fluctuations and is considered to be riskier than VOO based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PNW | VOO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.09% | 2.78% | +2.31% |
Volatility (6M)Calculated over the trailing 6-month period | 11.73% | 8.90% | +2.83% |
Volatility (1Y)Calculated over the trailing 1-year period | 15.95% | 11.80% | +4.15% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 20.35% | 16.81% | +3.54% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 22.62% | 18.00% | +4.62% |
Dividends
PNW vs. VOO - Dividend Comparison
PNW's dividend yield for the trailing twelve months is around 3.61%, more than VOO's 1.02% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PNW Pinnacle West Capital Corporation | 3.61% | 4.05% | 4.17% | 4.84% | 4.49% | 4.73% | 3.97% | 3.33% | 3.31% | 3.12% | 3.24% | 3.74% |
VOO Vanguard S&P 500 ETF | 1.02% | 1.13% | 1.24% | 1.46% | 1.69% | 1.25% | 1.54% | 1.88% | 2.06% | 1.78% | 2.02% | 2.10% |
Frequently Asked Questions
PNW and VOO have a correlation of -0.06, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PNW has higher volatility (5.09%) compared to VOO (2.78%). In terms of maximum drawdown, PNW dropped -79.18% vs VOO's -33.99%.
VOO currently has the higher Sharpe Ratio (2.44 vs 1.05), 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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