California Water Service PE ratio CWT

Share price divided by earnings per share over the last twelve months, since 2011.

Today, Oct 23, 2026: 21.6×
10-year median: 31.5×
Against its 10-year history: 23rd; percentile: 0 is its lowest day, 100 its highest
10-year range: 12.1× to 73.1×
Peer median: 21.8×

California Water Service's PE ratio is 21.6× as of Oct 23, 2026: a share price of $48.04 against $2.22 of earnings per share over the last twelve months.

That is below its ten-year median of 31.5×, lower than on 77% of days in the last ten years.

Over that time it ranged from 12.1× in Jan 2025 to 73.1× in Dec 2023.

The median for 8 water utilities of a similar size is 21.8×.

PE ratio over time

median 31.5×

The dashed line is the 10-year median and the shaded band the middle half of its days.

Open the interactive chart, with overlays and comparisons

Year by year

Year	End of year	Low	High
2026 so far	21.6×	18.8×	25.9×
2025	19.0×	12.1×	21.7×
2024	13.2×	13.2×	68.3×
2023	72.0×	31.1×	73.1×
2022	41.0×	24.4×	44.3×
2021	32.7×	19.9×	32.7×
2020	28.9×	25.0×	60.3×
2019	34.3×	32.9×	43.4×
2018	38.7×	25.9×	40.0×
2017	31.9×	30.2×	39.7×
2016	38.5×	23.0×	40.2×
2015	23.3×	16.7×	24.0×
2014	23.5×	22.0×	27.0×
2013	23.7×	16.8×	23.7×
2012	16.7×	15.9×	22.1×
2011	18.8×	17.9×	20.8×

Against its peers

Companies in Regulated Water nearest California Water Service's size, closest first, today.

Company	PE ratio
CWTCalifornia Water Service	21.6×
AWRAmerican States Water	23.4×
HTOH2O America	20.8×
MSEXMiddlesex Water	21.6×
WTRGEssential Utilities	22.0×
YORWYork Water	19.8×
CWCOConsolidated Water	28.1×
ARTNAArtesian Resources	14.9×
AWKAmerican Water Works	24.7×
Peer median	21.8×

Where California Water Service ranks

What the PE ratio tells you

Share price divided by earnings per share over the last twelve months. It is the price tag on a dollar of profit: 20× means you pay $20 for $1 of yearly earnings.

Blank while earnings are negative. A very low PE can mean the market expects profits to fall, so read it with growth and the company's own history.

More on California Water Service

Valuation data, not investment advice. Prices as of Oct 23, 2026. Reported figures come from the company's filings with the SEC.