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California Water Service

330 hedge funds and large institutions have $2.17B invested in California Water Service in 2025 Q4 according to their latest regulatory filings, with 38 funds opening new positions, 98 increasing their positions, 130 reducing their positions, and 38 closing their positions.

New
Increased
Maintained
Reduced
Closed

35,000% more call options, than puts

Call options by funds: $3.16M | Put options by funds: $9K

0.04% more ownership

Funds ownership: 84.06%84.1% (+0.04%)

0% more funds holding in top 10

Funds holding in top 10: 11 (0)

0% more first-time investments, than exits

New positions opened: 38 | Existing positions closed: 38

2% less funds holding

Funds holding: 337330 (-7)

6% less capital invested

Capital invested by funds: $2.3B → $2.17B (-$126M)

25% less repeat investments, than reductions

Existing positions increased: 98 | Existing positions reduced: 130

Holders
330
Holders Change
-7
Holders Change %
-2.08%
% of All Funds
4.01%
Holding in Top 10
1
Holding in Top 10 Change
Holding in Top 10 Change %
% of All Funds
0.01%
New
38
Increased
98
Reduced
130
Closed
38
Calls
$3.16M
Puts
$9K
Net Calls
+$3.15M
Net Calls Change
-$258K
Name Holding Trade Value Shares
Change
Change in
Stake
UBS AM
26
UBS AM
Illinois
$10.2M -$325K -7,134 -3%
Goldman Sachs
27
Goldman Sachs
New York
$9.81M -$1.54M -33,702 -13%
JP Morgan Chase
28
JP Morgan Chase
New York
$9.79M -$2.34M -51,359 -19%
UBS Group
29
UBS Group
Switzerland
$9.28M -$1.18M -25,833 -11%
Public Sector Pension Investment Board (PSP Investments)
30
Public Sector Pension Investment Board (PSP Investments)
Quebec, Canada
$8.93M -$1.2M -26,235 -11%
ACA
31
Aptus Capital Advisors
Alabama
$7.76M +$32.6K +715 +0.4%
RhumbLine Advisers
32
RhumbLine Advisers
Massachusetts
$7.52M -$731K -16,030 -8%
Citadel Advisors
33
Citadel Advisors
Florida
$7.48M +$7.24M +158,843 +1,144%
ProShare Advisors
34
ProShare Advisors
Maryland
$6.53M +$44.9K +985 +0.7%
Ameriprise
35
Ameriprise
Minnesota
$6.37M -$426K -9,334 -6%
TI
36
Trexquant Investment
Connecticut
$5.88M +$3.13M +68,683 +103%
American Century Companies
37
American Century Companies
Missouri
$5.55M -$4.55M -99,806 -44%
Barclays
38
Barclays
United Kingdom
$5.31M +$576K +12,636 +11%
Federated Hermes
39
Federated Hermes
Pennsylvania
$5.29M +$980K +21,495 +21%
Swiss National Bank
40
Swiss National Bank
Switzerland
$5.09M +$95.8K +2,100 +2%
COPPSERS
41
Commonwealth of Pennsylvania Public School Employees Retirement System
Pennsylvania
$4.86M -$19.2K -421 -0.4%
Renaissance Technologies
42
Renaissance Technologies
New York
$4.85M -$8.63M -189,216 -63%
Bank of America
43
Bank of America
North Carolina
$4.29M -$2.3M -50,432 -34%
Wells Fargo
44
Wells Fargo
California
$4.27M +$872K +19,129 +24%
Canada Life
45
Canada Life
Manitoba, Canada
$4.21M -$1.66M -36,443 -27%
CIC
46
Crawford Investment Counsel
Georgia
$3.99M +$91.2K +2,000 +2%
Millennium Management
47
Millennium Management
New York
$3.91M -$12.7M -277,917 -76%
Mariner
48
Mariner
Kansas
$3.77M -$394K -8,650 -9%
Deutsche Bank
49
Deutsche Bank
Germany
$3.77M +$137K +3,010 +4%
MYAM
50
Meiji Yasuda Asset Management
Japan
$3.67M -$332K -7,272 -8%