Growth Metrics

California Water Service (CWT) Operating Margin (2009 - 2026)

California Water Service's quarterly Operating Margin came in at 8.47% in Q1 2026, down 249.0% year-on-year from 5.68% in Q1 2025, and down 27.26% quarter-over-quarter from 11.64% in Q4 2025.

California Water Service has reported Operating Margin for 18 years, with the latest figure at 8.47% in Q1 2026.

  • For the quarter ending Q1 2026, Operating Margin fell 249.0% year-over-year to 8.47%; the trailing twelve-month figure through Mar 2026 stood at 16.44% (down 103.0% YoY), and the FY2025 full-year result was 17.03%, down 467.0% from the prior year.
  • Operating Margin for Q1 2026 stood at 8.47%, down from 11.64% in the prior quarter.
  • The five-year high for Operating Margin was 28.77% in Q1 2024, with the low at 13.37% in Q1 2023.
  • Average Operating Margin over 5 years is 14.29%, with a median of 14.51% recorded in 2024.
  • Year-over-year, Operating Margin sank 1865 bps in 2023 and surged 4214 bps in 2024.
  • Tracing CWT's Operating Margin over 5 years: stood at 13.08% in 2022, then advanced by 26 bps to 16.43% in 2023, then retreated by 12 bps to 14.51% in 2024, then retreated by 20 bps to 11.64% in 2025, then dropped by 27 bps to 8.47% in 2026.
  • The last three Operating Margin figures came in at 8.47% (Q1 2026), 11.64% (Q4 2025), and 22.69% (Q3 2025), per Business Quant data.

Peer Comparison

# Company Market Cap Enterprise Value Gross Profit (Qtr) Operating Margin (Qtr)
1 American Water Works Company 24.16 Bn 24.02 Bn 714.00 Mn 32.39%
2 Aris Mining 20.33 Bn 19.86 Bn 233.28 Mn 48.07%
3 Essential Utilities 10.48 Bn 10.40 Bn 685.96 Mn 36.05%
4 American States Water 2.94 Bn 2.93 Bn 104.19 Mn 40.91%
5 California Water Service 2.58 Bn 2.48 Bn 183.34 Mn 8.47%
6 H2O America 2.18 Bn 2.03 Bn 171.30 Mn 20.42%
7 Middlesex Water 959.61 Mn 957.57 Mn 25.70 Mn 26.90%
8 Consolidated Water 465.28 Mn 344.14 Mn 10.92 Mn 11.48%
9 York Water 430.12 Mn 430.12 Mn 13.98 Mn 31.81%
10 Artesian Resources 332.86 Mn 328.60 Mn 26.56 Mn 22.60%

Historic Data

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DateValue
Mar 31, 2026 8.47%
Dec 31, 2025 11.64%
Sep 30, 2025 22.69%
Jun 30, 2025 19.55%
Mar 31, 2025 10.95%
Dec 31, 2024 14.51%
Sep 30, 2024 22.28%
Jun 30, 2024 19.72%
Mar 31, 2024 28.77%
Dec 31, 2023 16.43%
Sep 30, 2023 17.05%
Jun 30, 2023 8.22%
Mar 31, 2023 -13.37%
Dec 31, 2022 13.08%
Sep 30, 2022 24.39%
Jun 30, 2022 13.23%
Mar 31, 2022 5.28%
Dec 31, 2021 6.03%
Sep 30, 2021 27.72%
Jun 30, 2021 19.82%
Mar 31, 2021 1.98%
Dec 31, 2020 13.23%
Sep 30, 2020 34.88%
Jun 30, 2020 7.12%
Mar 31, 2020 -5.51%
Dec 31, 2019 11.51%
Sep 30, 2019 22.18%
Jun 30, 2019 15.09%
Mar 31, 2019 0.38%
Dec 31, 2018 15.85%
Sep 30, 2018 21.39%
Jun 30, 2018 15.34%
Mar 31, 2018 7.31%
Dec 31, 2017 14.05%
Sep 30, 2017 20.51%
Jun 30, 2017 16.21%
Mar 31, 2017 9.65%
Dec 31, 2016 14.14%
Sep 30, 2016 16.31%
Jun 30, 2016 12.16%
Mar 31, 2016 5.15%
Dec 31, 2015 10.81%
Sep 30, 2015 17.54%
Jun 30, 2015 11.42%
Mar 31, 2015 6.15%
Dec 31, 2014 12.06%
Sep 30, 2014 21.36%
Jun 30, 2014 14.70%
Mar 31, 2014 1.04%
Dec 31, 2013 8.71%
Sep 30, 2013 19.42%
Jun 30, 2013 13.45%
Mar 31, 2013 5.18%
Dec 31, 2012 9.26%
Sep 30, 2012 20.41%
Jun 30, 2012 13.67%
Mar 31, 2012 5.66%
Dec 31, 2011 7.36%
Sep 30, 2011 17.77%
Jun 30, 2011 14.88%
Mar 31, 2011 10.14%
Dec 31, 2010 11.29%
Sep 30, 2010 17.67%
Jun 30, 2010 13.76%
Mar 31, 2010 8.59%
Dec 31, 2009 11.03%
Sep 30, 2009 17.31%
Jun 30, 2009 13.68%