CWT vs. SPY
Compare and contrast key facts about California Water Service Group (CWT) and State Street SPDR S&P 500 ETF (SPY).
SPY is a passively managed fund by State Street that tracks the performance of the S&P 500 Index. It was launched on Jan 22, 1993.
Performance
CWT vs. SPY - Performance Comparison
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CWT vs. SPY - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
CWT California Water Service Group | 5.43% | -1.81% | -10.64% | -12.83% | -14.13% | 35.05% | 6.68% | 9.85% | 7.06% | 36.39% |
SPY State Street SPDR S&P 500 ETF | -4.37% | 17.72% | 24.89% | 26.18% | -18.18% | 28.73% | 18.33% | 31.22% | -4.57% | 21.71% |
Returns By Period
In the year-to-date period, CWT achieves a 5.43% return, which is significantly higher than SPY's -4.37% return. Over the past 10 years, CWT has underperformed SPY with an annualized return of 7.48%, while SPY has yielded a comparatively higher 13.98% annualized return.
CWT
- 1D
- -1.54%
- 1M
- 0.58%
- YTD
- 5.43%
- 6M
- 0.20%
- 1Y
- -3.91%
- 3Y*
- -5.76%
- 5Y*
- -2.19%
- 10Y*
- 7.48%
SPY
- 1D
- 2.91%
- 1M
- -4.94%
- YTD
- -4.37%
- 6M
- -1.82%
- 1Y
- 17.59%
- 3Y*
- 18.19%
- 5Y*
- 11.69%
- 10Y*
- 13.98%
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Return for Risk
CWT vs. SPY — Risk / Return Rank
CWT
SPY
CWT vs. SPY - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for California Water Service Group (CWT) and State Street SPDR S&P 500 ETF (SPY). 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.
| CWT | SPY | Difference | |
|---|---|---|---|
Sharpe ratioReturn per unit of total volatility | -0.17 | 0.93 | -1.10 |
Sortino ratioReturn per unit of downside risk | -0.08 | 1.45 | -1.54 |
Omega ratioGain probability vs. loss probability | 0.99 | 1.22 | -0.23 |
Calmar ratioReturn relative to maximum drawdown | -0.22 | 1.53 | -1.74 |
Martin ratioReturn relative to average drawdown | -0.37 | 7.30 | -7.66 |
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
| CWT | SPY | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | -0.17 | 0.93 | -1.10 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.09 | 0.69 | -0.78 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.27 | 0.78 | -0.51 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.31 | 0.56 | -0.25 |
Correlation
The correlation between CWT and SPY is 0.35, which is considered to be low. This implies their price changes are not closely related. A low correlation is generally favorable for portfolio diversification, as it helps to reduce overall risk by spreading it across multiple assets with different performance patterns.
Dividends
CWT vs. SPY - Dividend Comparison
CWT's dividend yield for the trailing twelve months is around 2.72%, more than SPY's 1.14% yield.
| TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 | |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CWT California Water Service Group | 2.72% | 2.86% | 2.47% | 2.01% | 1.65% | 1.28% | 1.57% | 1.53% | 1.57% | 1.59% | 2.04% | 2.88% |
SPY State Street SPDR S&P 500 ETF | 1.14% | 1.07% | 1.21% | 1.40% | 1.65% | 1.20% | 1.52% | 1.75% | 2.04% | 1.80% | 2.03% | 2.06% |
Drawdowns
CWT vs. SPY - Drawdown Comparison
The maximum CWT drawdown since its inception was -38.21%, smaller than the maximum SPY drawdown of -55.19%. Use the drawdown chart below to compare losses from any high point for CWT and SPY.
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Drawdown Indicators
| CWT | SPY | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -38.21% | -55.19% | +16.98% |
Max Drawdown (1Y)Largest decline over 1 year | -16.03% | -12.05% | -3.98% |
Max Drawdown (5Y)Largest decline over 5 years | -38.21% | -24.50% | -13.71% |
Max Drawdown (10Y)Largest decline over 10 years | -38.21% | -33.72% | -4.49% |
Current DrawdownCurrent decline from peak | -30.76% | -6.24% | -24.52% |
Average DrawdownAverage peak-to-trough decline | -11.59% | -9.09% | -2.50% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 9.56% | 2.52% | +7.04% |
Volatility
CWT vs. SPY - Volatility Comparison
California Water Service Group (CWT) has a higher volatility of 8.43% compared to State Street SPDR S&P 500 ETF (SPY) at 5.31%. This indicates that CWT's price experiences larger fluctuations and is considered to be riskier than SPY based on this measure. The chart below showcases a comparison of their rolling one-month volatility.
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Volatility by Period
| CWT | SPY | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 8.43% | 5.31% | +3.12% |
Volatility (6M)Calculated over the trailing 6-month period | 17.84% | 9.47% | +8.37% |
Volatility (1Y)Calculated over the trailing 1-year period | 23.04% | 19.05% | +3.99% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 23.85% | 17.06% | +6.79% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 27.56% | 17.92% | +9.64% |