PIO vs. ICLN
Compare and contrast key facts about Invesco Global Water ETF (PIO) and iShares Global Clean Energy ETF (ICLN).
PIO and ICLN are both exchange-traded funds (ETFs), meaning they are traded on stock exchanges and can be bought and sold throughout the day. PIO is a passively managed fund by Invesco that tracks the performance of the NASDAQ OMX Global Water Index. It was launched on Jun 13, 2007. ICLN is a passively managed fund by iShares that tracks the performance of the S&P Global Clean Energy Index. It was launched on Jun 24, 2008. Both PIO and ICLN 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
PIO vs. ICLN - Performance Comparison
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PIO vs. ICLN - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
PIO Invesco Global Water ETF | -1.55% | 14.25% | -0.44% | 22.19% | -24.06% | 25.97% | 14.22% | 35.59% | -9.71% | 26.52% |
ICLN iShares Global Clean Energy ETF | 11.32% | 47.05% | -25.72% | -20.41% | -5.43% | -24.18% | 141.82% | 44.36% | -9.03% | 21.47% |
Returns By Period
In the year-to-date period, PIO achieves a -1.55% return, which is significantly lower than ICLN's 11.32% return. Both investments have delivered pretty close results over the past 10 years, with PIO having a 8.80% annualized return and ICLN not far ahead at 8.96%.
PIO
- 1D
- 2.81%
- 1M
- -10.03%
- YTD
- -1.55%
- 6M
- -3.09%
- 1Y
- 9.33%
- 3Y*
- 8.47%
- 5Y*
- 4.56%
- 10Y*
- 8.80%
ICLN
- 1D
- 4.45%
- 1M
- 0.38%
- YTD
- 11.32%
- 6M
- 19.07%
- 1Y
- 63.12%
- 3Y*
- -0.97%
- 5Y*
- -4.11%
- 10Y*
- 8.96%
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PIO vs. ICLN - Expense Ratio Comparison
PIO has a 0.75% expense ratio, which is higher than ICLN's 0.46% expense ratio.
Return for Risk
PIO vs. ICLN — Risk / Return Rank
PIO
ICLN
PIO vs. ICLN - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Invesco Global Water ETF (PIO) and iShares Global Clean Energy ETF (ICLN). 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.
| PIO | ICLN | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | 0.53 | 2.43 | -1.89 |
Sortino ratioReturn per unit of downside risk | 0.89 | 3.06 | -2.17 |
Omega ratioGain probability vs. loss probability | 1.12 | 1.39 | -0.27 |
Calmar ratioReturn relative to maximum drawdown | 0.70 | 5.49 | -4.79 |
Martin ratioReturn relative to average drawdown | 2.54 | 15.39 | -12.85 |
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
| PIO | ICLN | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.53 | 2.43 | -1.89 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | 0.26 | -0.15 | +0.41 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.49 | 0.33 | +0.15 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.20 | -0.12 | +0.31 |
Correlation
The correlation between PIO and ICLN is 0.64, which is considered to be moderate. This suggests that the two assets have some degree of positive relationship in their price movements. Moderate correlation can be acceptable for portfolio diversification, offering a balance between risk and potential returns.
Dividends
PIO vs. ICLN - Dividend Comparison
PIO's dividend yield for the trailing twelve months is around 1.03%, less than ICLN's 1.46% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
PIO Invesco Global Water ETF | 1.03% | 1.04% | 0.78% | 0.84% | 1.02% | 1.19% | 0.88% | 1.20% | 2.00% | 1.00% | 1.45% | 1.63% |
ICLN iShares Global Clean Energy ETF | 1.46% | 1.63% | 1.85% | 1.59% | 0.89% | 1.18% | 0.34% | 1.36% | 2.77% | 2.49% | 3.88% | 2.36% |
Drawdowns
PIO vs. ICLN - Drawdown Comparison
The maximum PIO drawdown since its inception was -64.88%, smaller than the maximum ICLN drawdown of -87.15%. Use the drawdown chart below to compare losses from any high point for PIO and ICLN.
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Drawdown Indicators
| PIO | ICLN | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -64.88% | -87.15% | +22.27% |
Max Drawdown (1Y)Largest decline over 1 year | -13.14% | -11.22% | -1.92% |
Max Drawdown (5Y)Largest decline over 5 years | -34.27% | -57.16% | +22.89% |
Max Drawdown (10Y)Largest decline over 10 years | -35.76% | -66.75% | +30.99% |
Current DrawdownCurrent decline from peak | -10.61% | -50.20% | +39.59% |
Average DrawdownAverage peak-to-trough decline | -15.50% | -66.84% | +51.34% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 3.62% | 4.00% | -0.38% |
Volatility
PIO vs. ICLN - Volatility Comparison
The current volatility for Invesco Global Water ETF (PIO) is 6.83%, while iShares Global Clean Energy ETF (ICLN) has a volatility of 10.82%. This indicates that PIO experiences smaller price fluctuations and is considered to be less risky than ICLN based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| PIO | ICLN | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 6.83% | 10.82% | -3.99% |
Volatility (6M)Calculated over the trailing 6-month period | 10.78% | 20.46% | -9.68% |
Volatility (1Y)Calculated over the trailing 1-year period | 17.54% | 26.17% | -8.63% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 17.48% | 27.16% | -9.68% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 18.13% | 27.04% | -8.91% |