Arrowstreet Capital
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Arrowstreet Capital’s California Water Service CWT Stock Holding History

Arrowstreet Capital’s Portfolio CWT Stock Details CWT Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$17.8M Buy
365,464
+107,494
+42% +$4.85M 0.01% 903
2026
Q1 		$11.7M Buy
257,970
+208,061
+417% +$9.33M 0.01% 899
2025
Q4 		$2.16M Sell
49,909
-7,264
-13% -$331K ﹤0.01% 1379
2025
Q3 		$2.62M Sell
57,173
-21,009
-27% -$967K ﹤0.01% 1381
2025
Q2 		$3.56M Buy
78,182
+50,172
+179% +$2.4M ﹤0.01% 1282
2025
Q1 		$1.36M Buy
+28,010
New +$1.27M ﹤0.01% 1407
2020
Q2 		– Sell
-14,100
Closed -$710K – 2330
2020
Q1 		$710K Buy
+14,100
New +$732K ﹤0.01% 1425
2016
Q4 		– Sell
-70,824
Closed -$2.27M – 1828
2016
Q3 		$2.27M Buy
70,824
+60,216
+568% +$1.94M 0.01% 887
2016
Q2 		$371K Buy
+10,608
New +$311K ﹤0.01% 1194
2015
Q1 		– Sell
-129,682
Closed -$3.19M – 1035
2014
Q4 		$3.19M Buy
129,682
+73,635
+131% +$1.8M 0.02% 584
2014
Q3 		$1.26M Buy
+56,047
New +$1.32M 0.01% 686

Other funds holding CWT

BlackRock
BlackRock New York $6.73T AUM 46.02% 1-Year Est. Return
Vanguard Portfolio Management
Vanguard Portfolio Management Malvern, Pennsylvania $2.22T AUM
T. Rowe Price Investment Management
T. Rowe Price Investment Management Baltimore, Maryland $153B AUM 38.14% 1-Year Est. Return
Amundi
Amundi Paris, France $416B AUM 44.19% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Vanguard Capital Management
Vanguard Capital Management Malvern, Pennsylvania $4.68T AUM
AIP
Atlas Infrastructure Partners London, United Kingdom $3.3B AUM 16.21% 1-Year Est. Return
Geode Capital Management
Geode Capital Management Boston, Massachusetts $1.88T AUM 44.46% 1-Year Est. Return
First Trust Advisors
First Trust Advisors Wheaton, Illinois $170B AUM 46.21% 1-Year Est. Return
Fidelity Investments
Fidelity Investments Boston, Massachusetts $2.3T AUM 54.33% 1-Year Est. Return

Arrowstreet Capital's CWT Position: Q2 2026 in Review

Arrowstreet Capital increased its California Water Service (CWT) stake by 42% in Q2 2026, buying an estimated $4.85M and bringing the position to 365,464 shares worth $17.8M. The position accounts for 0.01% of the portfolio, ranked #903.

Arrowstreet Capital first reported a position in CWT in Q3 2014 and has held it in 11 quarters since. 345 funds tracked by Wall St. Rank hold CWT as of Q2 2026.

  • Arrowstreet Capital held 365,464 shares of California Water Service worth $17.8M as of Q2 2026.
  • Arrowstreet Capital bought 107,494 California Water Service shares in Q2 2026, an estimated $4.85M.
  • California Water Service made up 0.01% of Arrowstreet Capital's portfolio in Q2 2026, its #903 holding.
  • Arrowstreet Capital first reported a position in California Water Service in Q3 2014 and has held it in 11 quarters since.
  • 345 funds tracked by Wall St. Rank held California Water Service as of Q2 2026.

Based on Arrowstreet Capital's 13F filing for Q2 2026, filed 13 Aug 2026.