CGW vs. GWRS
CGW (Invesco S&P Global Water Index ETF) is Water Equities fund tracking the S&P Global Water Index, while GWRS (Global Water Resources, Inc.) is a stock. Over the past 10 years, CGW returned 9.98%/yr vs 1.30%/yr for GWRS. At a 0.38 correlation, their price movements are largely independent.
Performance
CGW vs. GWRS - Performance Comparison
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Returns By Period
In the year-to-date period, CGW achieves a -0.07% return, which is significantly higher than GWRS's -14.93% return. Over the past 10 years, CGW has outperformed GWRS with an annualized return of 9.98%, while GWRS has yielded a comparatively lower 1.30% annualized return.
CGW
- 1D
- -1.01%
- 1M
- 0.69%
- YTD
- -0.07%
- 6M
- -0.77%
- 1Y
- 4.10%
- 3Y*
- 9.64%
- 5Y*
- 5.08%
- 10Y*
- 9.98%
GWRS
- 1D
- 2.17%
- 1M
- -2.01%
- YTD
- -14.93%
- 6M
- -15.92%
- 1Y
- -32.22%
- 3Y*
- -16.00%
- 5Y*
- -13.59%
- 10Y*
- 1.30%
CGW vs. GWRS - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
CGW Invesco S&P Global Water Index ETF | -0.07% | 18.10% | 4.55% | 15.50% | -22.00% | 31.70% | 15.41% | 34.04% | -10.47% | 27.08% |
GWRS Global Water Resources, Inc. | -14.93% | -24.33% | -9.94% | 0.95% | -20.68% | 20.65% | 12.34% | 33.21% | 11.84% | 5.74% |
Correlation
The correlation between CGW and GWRS is 0.42, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.42 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.43 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.40 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.39 |
Correlation (All Time) Calculated using the full available price history since Apr 28, 2016 | 0.38 |
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Return for Risk
CGW vs. GWRS — Risk / Return Rank
CGW
GWRS
CGW vs. GWRS - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for Invesco S&P Global Water Index ETF (CGW) and Global Water Resources, Inc. (GWRS). 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.
| CGW | GWRS | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | +1.26 | ||
| Sortino ratioReturn per unit of downside risk | +1.73 | ||
| Omega ratioGain probability vs. loss probability | 1.06 | 0.84 | +0.22 |
| Calmar ratioReturn relative to maximum drawdown | 0.38 | -0.85 | +1.23 |
| Martin ratioReturn relative to average drawdown | 0.90 | -1.51 | +2.42 |
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Drawdowns
CGW vs. GWRS - Drawdown Comparison
The maximum CGW drawdown since its inception was -57.24%, smaller than the maximum GWRS drawdown of -63.38%. Use the drawdown chart below to compare losses from any high point for CGW and GWRS.
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Drawdown Indicators
| CGW | GWRS | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -57.24% | -63.38% | +6.14% |
Max Drawdown (1Y)Largest decline over 1 year | -10.86% | -38.17% | +27.31% |
Max Drawdown (3Y)Largest decline over 3 years | -16.24% | -48.36% | +32.12% |
Max Drawdown (5Y)Largest decline over 5 years | -32.74% | -63.38% | +30.64% |
Max Drawdown (10Y)Largest decline over 10 years | -35.72% | -63.38% | +27.66% |
Current DrawdownCurrent decline from peak | -8.55% | -60.96% | +52.41% |
Average DrawdownAverage peak-to-trough decline | -9.83% | -22.11% | +12.28% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 4.54% | 21.35% | -16.81% |
Volatility
CGW vs. GWRS - Volatility Comparison
The current volatility for Invesco S&P Global Water Index ETF (CGW) is 4.01%, while Global Water Resources, Inc. (GWRS) has a volatility of 12.63%. This indicates that CGW experiences smaller price fluctuations and is considered to be less risky than GWRS based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CGW | GWRS | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 4.01% | 12.63% | -8.62% |
Volatility (6M)Calculated over the trailing 6-month period | 10.51% | 26.00% | -15.49% |
Volatility (1Y)Calculated over the trailing 1-year period | 13.58% | 34.29% | -20.71% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 16.82% | 32.15% | -15.33% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 17.63% | 33.61% | -15.98% |
Dividends
CGW vs. GWRS - Dividend Comparison
CGW's dividend yield for the trailing twelve months is around 1.58%, less than GWRS's 4.31% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CGW Invesco S&P Global Water Index ETF | 1.58% | 1.58% | 2.27% | 1.55% | 1.45% | 1.59% | 1.41% | 1.48% | 2.14% | 1.71% | 1.65% | 1.67% |
GWRS Global Water Resources, Inc. | 4.31% | 3.60% | 2.62% | 2.28% | 2.22% | 1.71% | 2.01% | 2.18% | 2.81% | 2.94% | 1.90% | 0.00% |
Frequently Asked Questions
CGW and GWRS have a correlation of 0.42, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
GWRS has higher volatility (12.63%) compared to CGW (4.01%). In terms of maximum drawdown, CGW dropped -57.24% vs GWRS's -63.38%.
CGW currently has the higher Sharpe Ratio (0.30 vs -0.95), 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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