AWK vs. CWT

Last updated Apr 1, 2026

Compare and contrast key facts about American Water Works Company, Inc. (AWK) and California Water Service Group (CWT).

Performance

AWK vs. CWT - Performance Comparison

The chart below illustrates the hypothetical performance of a $10,000 investment in American Water Works Company, Inc. (AWK) and California Water Service Group (CWT). The values are adjusted to include any dividend payments, if applicable.

AWK vs. CWT - Yearly Performance Comparison

	2026 (YTD)	2025	2024	2023	2022	2021	2020	2019	2018	2017
AWK American Water Works Company, Inc.	4.99%	7.40%	-3.53%	-11.68%	-17.89%	24.83%	26.88%	37.79%	1.32%	29.01%
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%

Fundamentals

Market Cap AWK : $26.54B CWT : $2.71B
EPS AWK : $5.70 CWT : $2.15
PE Ratio AWK : 23.89 CWT : 21.09
PS Ratio AWK : 5.16 CWT : 2.70
PB Ratio AWK : 2.45 CWT : 1.60
Total Revenue (TTM) AWK : $5.14B CWT : $1.00B
Gross Profit (TTM) AWK : $3.12B CWT : $436.14M
EBITDA (TTM) AWK : $1.70B CWT : $329.61M

Returns By Period

In the year-to-date period, AWK achieves a 4.99% return, which is significantly lower than CWT's 5.43% return. Over the past 10 years, AWK has outperformed CWT with an annualized return of 9.05%, while CWT has yielded a comparatively lower 7.48% annualized return.

AWK

• 1D: -1.97%
• 1M: 0.04%
• YTD: 4.99%
• 6M: -0.93%
• 1Y: -5.43%
• 3Y*: -0.15%
• 5Y*: 0.00%
• 10Y*: 9.05%

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%

*Multi-year figures are annualized to reflect compound growth (CAGR)

Return for Risk

AWK vs. CWT — Risk / Return Rank

Compare risk-adjusted metric ranks to identify better-performing investments over the past 12 months.

AWK

AWK Risk / Return Rank: 31
AWK Sharpe Ratio Rank: 31
AWK Sortino Ratio Rank: 26
AWK Omega Ratio Rank: 27
AWK Calmar Ratio Rank: 34
AWK Martin Ratio Rank: 34

CWT

CWT Risk / Return Rank: 32
CWT Sharpe Ratio Rank: 34
CWT Sortino Ratio Rank: 29
CWT Omega Ratio Rank: 28
CWT Calmar Ratio Rank: 35
CWT Martin Ratio Rank: 36

The rank (0–100) shows how this investment's returns compare to the risk taken. Higher = better. Based on the past 12 months of data, combining Sharpe, Sortino, and other metrics used by quantitative funds and institutional investors.

AWK vs. CWT - Risk-Adjusted Trends Comparison

This table presents a comparison of risk-adjusted performance metrics for American Water Works Company, Inc. (AWK) and California Water Service Group (CWT). 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.

	AWK	CWT	Difference
Sharpe ratio Return per unit of total volatility	-0.24	-0.17	-0.07
Sortino ratio Return per unit of downside risk	-0.18	-0.08	-0.10
Omega ratio Gain probability vs. loss probability	0.98	0.99	-0.01
Calmar ratio Return relative to maximum drawdown	-0.26	-0.22	-0.04
Martin ratio Return relative to average drawdown	-0.50	-0.37	-0.14
Data is calculated on a 1-year rolling basis and updated daily. The trend shows the change in the indicator over the past month.

AWK vs. CWT - Sharpe Ratio Comparison

The current AWK Sharpe Ratio is -0.24, which is lower than the CWT Sharpe Ratio of -0.17. The chart below compares the historical Sharpe Ratios of AWK and CWT, offering insights into how both investments have performed under varying market conditions. These values are calculated using daily returns over the previous 12 months.

Sharpe Ratios by Period

	AWK	CWT	Difference
Sharpe Ratio (1Y) Calculated over the trailing 1-year period	-0.24	-0.17	-0.07
Sharpe Ratio (5Y) Calculated over the trailing 5-year period	0.00	-0.09	+0.09
Sharpe Ratio (10Y) Calculated over the trailing 10-year period	0.38	0.27	+0.11
Sharpe Ratio (All Time) Calculated using the full available price history	0.60	0.31	+0.29

Correlation

The correlation between AWK and CWT is 0.60, 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

AWK vs. CWT - Dividend Comparison

AWK's dividend yield for the trailing twelve months is around 2.43%, less than CWT's 2.72% yield.

	TTM	2025	2024	2023	2022	2021	2020	2019	2018	2017	2016	2015
AWK American Water Works Company, Inc.	2.43%	2.49%	2.41%	2.10%	1.68%	1.25%	1.40%	1.59%	1.96%	1.77%	2.02%	2.23%
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%

Drawdowns

AWK vs. CWT - Drawdown Comparison

The maximum AWK drawdown since its inception was -37.10%, roughly equal to the maximum CWT drawdown of -38.21%. Use the drawdown chart below to compare losses from any high point for AWK and CWT.

Drawdown Indicators

	AWK	CWT	Difference
Max Drawdown Largest peak-to-trough decline	-37.10%	-38.21%	+1.11%
Max Drawdown (1Y) Largest decline over 1 year	-17.61%	-16.03%	-1.58%
Max Drawdown (5Y) Largest decline over 5 years	-37.10%	-38.21%	+1.11%
Max Drawdown (10Y) Largest decline over 10 years	-37.10%	-38.21%	+1.11%
Current Drawdown Current decline from peak	-21.12%	-30.76%	+9.64%
Average Drawdown Average peak-to-trough decline	-9.33%	-11.59%	+2.26%
Ulcer Index Depth and duration of drawdowns from previous peaks	9.14%	9.56%	-0.42%

Volatility

AWK vs. CWT - Volatility Comparison

The current volatility for American Water Works Company, Inc. (AWK) is 7.00%, while California Water Service Group (CWT) has a volatility of 8.43%. This indicates that AWK experiences smaller price fluctuations and is considered to be less risky than CWT based on this measure. The chart below showcases a comparison of their rolling one-month volatility.

Volatility by Period

	AWK	CWT	Difference
Volatility (1M) Calculated over the trailing 1-month period	7.00%	8.43%	-1.43%
Volatility (6M) Calculated over the trailing 6-month period	16.48%	17.84%	-1.36%
Volatility (1Y) Calculated over the trailing 1-year period	23.10%	23.04%	+0.06%
Volatility (5Y) Calculated over the trailing 5-year period, annualized	22.77%	23.85%	-1.08%
Volatility (10Y) Calculated over the trailing 10-year period, annualized	23.65%	27.56%	-3.91%

Financials

AWK vs. CWT - Profitability Comparison

The chart below illustrates the profitability comparison between American Water Works Company, Inc. and California Water Service Group over time, highlighting three key metrics: Gross Profit Margin, Operating Margin, and Net Profit Margin.

AWK - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, American Water Works Company, Inc. reported a gross profit of 723.00M and revenue of 1.27B. Therefore, the gross margin over that period was 56.9%.

CWT - Gross Margin

Gross margin is calculated as gross profit divided by revenue. For the three months ending on Apr 2026, California Water Service Group reported a gross profit of 0.00 and revenue of 219.98M. Therefore, the gross margin over that period was 0.0%.

AWK - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, American Water Works Company, Inc. reported an operating income of 405.00M and revenue of 1.27B, resulting in an operating margin of 31.9%.

CWT - Operating Margin

Operating margin is calculated as operating income divided by revenue. For the three months ending on Apr 2026, California Water Service Group reported an operating income of 25.60M and revenue of 219.98M, resulting in an operating margin of 11.6%.

AWK - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, American Water Works Company, Inc. reported a net income of 238.00M and revenue of 1.27B, resulting in a net margin of 18.7%.

CWT - Net Margin

Net margin is calculated as net income divided by revenue. For the three months ending on Apr 2026, California Water Service Group reported a net income of 11.48M and revenue of 219.98M, resulting in a net margin of 5.2%.