PHO vs. VOO
Compare and contrast key facts about Invesco Water Resources ETF (PHO) and Vanguard S&P 500 ETF (VOO).
PHO and VOO are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. PHO is a passively managed fund by Invesco that tracks the performance of the NASDAQ OMX US Water Index. It was launched on Dec 6, 2005. VOO is a passively managed fund by Vanguard that tracks the performance of the S&P 500 Index. It was launched on Sep 7, 2010. Both PHO and VOO are passive ETFs, meaning that they are not actively managed but aim to replicate the performance of the underlying index as closely as possible.
Performance
PHO vs. VOO - Performance Comparison
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PHO vs. VOO - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PHO Invesco Water Resources ETF | -4.89% | 7.62% | 8.59% | 18.85% | -14.86% | 31.28% | 20.83% | 37.57% | -6.40% | 23.55% |
VOO Vanguard S&P 500 ETF | -4.42% | 17.82% | 24.98% | 26.32% | -18.17% | 28.79% | 18.32% | 31.37% | -4.50% | 21.77% |
Returns By Period
In the year-to-date period, PHO achieves a -4.89% return, which is significantly lower than VOO's -4.42% return. Over the past 10 years, PHO has underperformed VOO with an annualized return of 12.21%, while VOO has yielded a comparatively higher 14.05% annualized return.
PHO
- 1D
- 2.01%
- 1M
- -8.31%
- YTD
- -4.89%
- 6M
- -7.02%
- 1Y
- 4.21%
- 3Y*
- 8.41%
- 5Y*
- 6.56%
- 10Y*
- 12.21%
VOO
- 1D
- 2.86%
- 1M
- -5.01%
- YTD
- -4.42%
- 6M
- -1.84%
- 1Y
- 17.67%
- 3Y*
- 18.27%
- 5Y*
- 11.75%
- 10Y*
- 14.05%
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PHO vs. VOO - Expense Ratio Comparison
PHO has a 0.60% expense ratio, which is higher than VOO's 0.03% expense ratio.
Return for Risk
PHO vs. VOO — Risk / Return Rank
PHO
VOO
PHO vs. VOO - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Invesco Water Resources ETF (PHO) 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.
| PHO | VOO | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.23 | 0.98 | -0.75 |
Sortino ratioReturn per unit of downside risk | 0.47 | 1.50 | -1.02 |
Omega ratioGain probability vs. loss probability | 1.06 | 1.23 | -0.17 |
Calmar ratioReturn relative to maximum drawdown | 0.38 | 1.53 | -1.15 |
Martin ratioReturn relative to average drawdown | 1.19 | 7.29 | -6.11 |
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
| PHO | VOO | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.23 | 0.98 | -0.75 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.36 | 0.70 | -0.34 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.63 | 0.78 | -0.15 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.35 | 0.83 | -0.48 |
Correlation
The correlation between PHO and VOO is 0.82, which is considered to be high. That indicates a strong positive relationship between their price movements. Having highly-correlated positions in a portfolio may signal a lack of diversification, potentially leading to increased risk during market downturns.
Dividends
PHO vs. VOO - Dividend Comparison
PHO's dividend yield for the trailing twelve months is around 0.58%, less than VOO's 1.19% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PHO Invesco Water Resources ETF | 0.58% | 0.54% | 0.45% | 0.59% | 0.49% | 0.20% | 0.39% | 0.43% | 0.46% | 0.34% | 0.47% | 0.75% |
VOO Vanguard S&P 500 ETF | 1.19% | 1.13% | 1.24% | 1.46% | 1.69% | 1.25% | 1.54% | 1.88% | 2.06% | 1.78% | 2.02% | 2.10% |
Drawdowns
PHO vs. VOO - Drawdown Comparison
The maximum PHO drawdown since its inception was -55.62%, which is greater than VOO's maximum drawdown of -33.99%. Use the drawdown chart below to compare losses from any high point for PHO and VOO.
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Drawdown Indicators
| PHO | VOO | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -55.62% | -33.99% | -21.63% |
Max Drawdown (1Y)Largest decline over 1 year | -11.98% | -11.98% | 0.00% |
Max Drawdown (5Y)Largest decline over 5 years | -28.60% | -24.52% | -4.08% |
Max Drawdown (10Y)Largest decline over 10 years | -34.92% | -33.99% | -0.93% |
Current DrawdownCurrent decline from peak | -10.14% | -6.29% | -3.85% |
Average DrawdownAverage peak-to-trough decline | -10.19% | -3.72% | -6.47% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.86% | 2.52% | +1.34% |
Volatility
PHO vs. VOO - Volatility Comparison
Invesco Water Resources ETF (PHO) and Vanguard S&P 500 ETF (VOO) have volatilities of 5.21% and 5.29%, respectively, indicating that both stocks experience similar levels of price fluctuations. This suggests that the risk associated with both stocks, as measured by volatility, is nearly the same. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PHO | VOO | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 5.21% | 5.29% | -0.08% |
Volatility (6M)Calculated over the trailing 6-month period | 10.90% | 9.44% | +1.46% |
Volatility (1Y)Calculated over the trailing 1-year period | 18.55% | 18.10% | +0.45% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 18.35% | 16.82% | +1.53% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 19.43% | 17.99% | +1.44% |