CWT vs. PPG
CWT (California Water Service Group) and PPG (PPG Industries, Inc.) are both stocks. CWT operates in Utilities - Regulated Water (Utilities), while PPG operates in Specialty Chemicals (Basic Materials). Over the past 10 years, CWT returned 5.60%/yr vs 2.22%/yr for PPG. At a 0.25 correlation, their price movements are largely independent.
Performance
CWT vs. PPG - Performance Comparison
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Returns By Period
In the year-to-date period, CWT achieves a 5.76% return, which is significantly lower than PPG's 11.53% return. Over the past 10 years, CWT has outperformed PPG with an annualized return of 5.60%, while PPG has yielded a comparatively lower 2.22% annualized return.
CWT
- 1D
- -1.51%
- 1M
- 4.63%
- YTD
- 5.76%
- 6M
- 5.10%
- 1Y
- 1.75%
- 3Y*
- -4.79%
- 5Y*
- -2.52%
- 10Y*
- 5.60%
PPG
- 1D
- -0.81%
- 1M
- 3.65%
- YTD
- 11.53%
- 6M
- 13.85%
- 1Y
- 2.92%
- 3Y*
- -4.70%
- 5Y*
- -6.70%
- 10Y*
- 2.22%
CWT vs. PPG - Yearly Performance Comparison
| 2026 (YTD) | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | |
|---|---|---|---|---|---|---|---|---|---|---|
CWT California Water Service Group | 5.76% | -1.81% | -10.64% | -12.83% | -14.13% | 35.05% | 6.68% | 9.85% | 7.06% | 36.39% |
PPG PPG Industries, Inc. | 11.53% | -11.96% | -18.46% | 21.19% | -25.71% | 21.28% | 10.08% | 32.81% | -11.00% | 25.24% |
Correlation
The correlation between CWT and PPG is 0.18, which is low. Their price movements are largely independent, making them effective diversification partners.
| Correlation | |
|---|---|
Correlation (1Y) Calculated over the trailing 1-year period | 0.18 |
Correlation (3Y) Calculated over the trailing 3-year period | 0.27 |
Correlation (5Y) Calculated over the trailing 5-year period | 0.31 |
Correlation (10Y) Calculated over the trailing 10-year period | 0.29 |
Correlation (All Time) Calculated using the full available price history since Mar 27, 1990 | 0.25 |
The correlation between CWT and PPG shifts across timeframes, from 0.18 (1 year) to 0.31 (5 years), reflecting how their relationship changes across market environments.
Fundamentals
CWT:
$2.70B
PPG:
$25.33B
CWT:
$1.99
PPG:
$7.01
CWT:
22.65
PPG:
16.09
CWT:
0.55
PPG:
2.14
CWT:
2.66
PPG:
1.58
CWT:
$1.01B
PPG:
$16.12B
CWT:
$366.63M
PPG:
$4.88B
CWT:
$329.51M
PPG:
$2.52B
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Return for Risk
CWT vs. PPG — Risk / Return Rank
CWT
PPG
CWT vs. PPG - Risk-Adjusted Trends Comparison
This table presents a comparison of risk-adjusted performance metrics for California Water Service Group (CWT) and PPG Industries, Inc. (PPG). 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 | PPG | Difference | |
|---|---|---|---|
| Sharpe ratioReturn per unit of total volatility | -0.03 | ||
| Sortino ratioReturn per unit of downside risk | -0.09 | ||
| Omega ratioGain probability vs. loss probability | 1.03 | 1.04 | -0.01 |
| Calmar ratioReturn relative to maximum drawdown | 0.12 | 0.11 | +0.01 |
| Martin ratioReturn relative to average drawdown | 0.23 | 0.23 | 0.00 |
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 | PPG | Difference | |
|---|---|---|---|
Sharpe Ratio (1Y)Calculated over the trailing 1-year period | 0.07 | 0.10 | -0.03 |
Sharpe Ratio (5Y)Calculated over the trailing 5-year period | -0.10 | -0.24 | +0.14 |
Sharpe Ratio (10Y)Calculated over the trailing 10-year period | 0.20 | 0.08 | +0.12 |
Sharpe Ratio (All Time)Calculated using the full available price history | 0.31 | 0.39 | -0.08 |
Drawdowns
CWT vs. PPG - Drawdown Comparison
The maximum CWT drawdown since its inception was -38.21%, smaller than the maximum PPG drawdown of -63.02%. Use the drawdown chart below to compare losses from any high point for CWT and PPG.
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Drawdown Indicators
| CWT | PPG | Difference | |
|---|---|---|---|
Max DrawdownLargest peak-to-trough decline | -38.21% | -63.02% | +24.81% |
Max Drawdown (1Y)Largest decline over 1 year | -14.59% | -25.68% | +11.09% |
Max Drawdown (3Y)Largest decline over 3 years | -24.13% | -37.41% | +13.28% |
Max Drawdown (5Y)Largest decline over 5 years | -38.21% | -44.56% | +6.35% |
Max Drawdown (10Y)Largest decline over 10 years | -38.21% | -46.02% | +7.81% |
Current DrawdownCurrent decline from peak | -30.55% | -31.33% | +0.78% |
Average DrawdownAverage peak-to-trough decline | -11.70% | -13.26% | +1.56% |
Ulcer IndexDepth and duration of drawdowns from previous peaks | 7.70% | 12.72% | -5.02% |
Volatility
CWT vs. PPG - Volatility Comparison
California Water Service Group (CWT) and PPG Industries, Inc. (PPG) have volatilities of 7.12% and 7.40%, 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
| CWT | PPG | Difference | |
|---|---|---|---|
Volatility (1M)Calculated over the trailing 1-month period | 7.12% | 7.40% | -0.28% |
Volatility (6M)Calculated over the trailing 6-month period | 19.03% | 22.86% | -3.83% |
Volatility (1Y)Calculated over the trailing 1-year period | 24.16% | 28.93% | -4.77% |
Volatility (5Y)Calculated over the trailing 5-year period, annualized | 24.29% | 27.56% | -3.27% |
Volatility (10Y)Calculated over the trailing 10-year period, annualized | 27.73% | 27.45% | +0.28% |
Dividends
CWT vs. PPG - Dividend Comparison
CWT's dividend yield for the trailing twelve months is around 2.81%, more than PPG's 2.52% yield.
| Position | TTM | 2025 | 2024 | 2023 | 2022 | 2021 | 2020 | 2019 | 2018 | 2017 | 2016 | 2015 |
|---|---|---|---|---|---|---|---|---|---|---|---|---|
CWT California Water Service Group | 2.81% | 2.86% | 2.47% | 2.01% | 1.65% | 1.28% | 1.57% | 1.53% | 1.57% | 1.59% | 2.04% | 2.88% |
PPG PPG Industries, Inc. | 2.52% | 2.71% | 2.23% | 1.70% | 1.92% | 1.31% | 1.46% | 1.48% | 1.82% | 1.46% | 1.65% | 1.43% |
Financials
CWT vs. PPG - Financials Comparison
This section allows you to compare key financial metrics between California Water Service Group and PPG Industries, Inc.. You can select fields from income statements, balance sheets, and cash flow statements to easily visualize and compare the financial health of both companies.
Total Revenue: Total amount of money received from sales and other business activities
CWT vs. PPG - Profitability Comparison
CWT - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, California Water Service Group reported a gross profit of 0.00 and revenue of 214.57M. Therefore, the gross margin over that period was 0.0%.
PPG - Gross Margin
Gross margin is calculated as gross profit divided by revenue. For the three months ending on Jun 2026, PPG Industries, Inc. reported a gross profit of 0.00 and revenue of 3.93B. Therefore, the gross margin over that period was 0.0%.
CWT - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, California Water Service Group reported an operating income of 18.16M and revenue of 214.57M, resulting in an operating margin of 8.5%.
PPG - Operating Margin
Operating margin is calculated as operating income divided by revenue. For the three months ending on Jun 2026, PPG Industries, Inc. reported an operating income of 385.00M and revenue of 3.93B, resulting in an operating margin of 9.8%.
CWT - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, California Water Service Group reported a net income of 4.04M and revenue of 214.57M, resulting in a net margin of 1.9%.
PPG - Net Margin
Net margin is calculated as net income divided by revenue. For the three months ending on Jun 2026, PPG Industries, Inc. reported a net income of 382.00M and revenue of 3.93B, resulting in a net margin of 9.7%.
Frequently Asked Questions
CWT and PPG have a correlation of 0.18, meaning they provide meaningful diversification benefit when combined. Depending on your allocation goals, holding both could reduce overall portfolio risk.
PPG has higher volatility (7.40%) compared to CWT (7.12%). In terms of maximum drawdown, CWT dropped -38.21% vs PPG's -63.02%.
PPG currently has the higher Sharpe Ratio (0.10 vs 0.07), 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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