California Water Service market cap CWT

Share price times shares outstanding: what the whole company sells for, since 2010.

California Water Service is worth $3B at the close on Oct 23, 2026, at $48.04 a share.

That is up 1% over the last year and down 7% over five years.

Its highest close in our data was $3.8B in Dec 2021.

Market cap over time

Year	End of year	Low	High	Change
2026 so far	$3B	$2.5B	$3.1B	+15%
2025	$2.6B	$2.5B	$3B	−5%
2024	$2.7B	$2.6B	$3.3B	−9%
2023	$3B	$2.7B	$3.4B	−10%
2022	$3.3B	$2.7B	$3.6B	−12%
2021	$3.8B	$2.7B	$3.8B	+40%
2020	$2.7B	$2.1B	$2.7B	+9%
2019	$2.5B	$2.2B	$2.7B	+9%
2018	$2.3B	$1.7B	$2.3B	+4%
2017	$2.2B	$1.6B	$2.2B	+34%
2016	$1.6B	$1.1B	$1.7B	+46%
2015	$1.1B	$942.3M	$1.2B	−7%
2014	$1.2B	$1B	$1.2B	+9%
2013	$1.1B	$779.9M	$1.1B	+45%
2012	$763.1M	$724.1M	$796.4M	−0%
2011	$763.6M	$717.7M	$798.7M	−2%
2010	$776.6M	$713.9M	$799.5M	n/a

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

Company	Market cap
CWTCalifornia Water Service	$3B
AWRAmerican States Water	$3.4B
HTOH2O America	$2.5B
MSEXMiddlesex Water	$1.1B
WTRGEssential Utilities	$12.2B
YORWYork Water	$516.4M
CWCOConsolidated Water	$445M
ARTNAArtesian Resources	$352.2M
AWKAmerican Water Works	$28.4B
Peer median	$1.8B