Arrowstreet Capital
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Arrowstreet Capital’s ECARX Holdings ECX Stock Holding History

Arrowstreet Capital’s Portfolio ECX Stock Details ECX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2025
Q4 		– Sell
-91,193
Closed -$183K – 1878
2025
Q3 		$183K Sell
91,193
-341,641
-79% -$606K ﹤0.01% 1800
2025
Q2 		$887K Sell
432,834
-1,654,012
-79% -$2.39M ﹤0.01% 1642
2025
Q1 		$2.63M Buy
+2,086,846
New +$4.46M ﹤0.01% 1215

Other funds holding ECX

Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
Tudor Investment Corp
Tudor Investment Corp Stamford, Connecticut $53.9B AUM 29.12% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
State Street
State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return
Acadian Asset Management
Acadian Asset Management Boston, Massachusetts $70.5B AUM 36% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Mitsubishi UFJ Asset Management
Mitsubishi UFJ Asset Management Tokyo, Japan $180B AUM 37.51% 1-Year Est. Return

Arrowstreet Capital's ECX Position: Q4 2025 in Review

Arrowstreet Capital sold out of ECARX Holdings (ECX) in Q4 2025, closing a stake of 91,193 shares — an estimated $183K sold.

Arrowstreet Capital first reported a position in ECX in Q1 2025 and held it in 3 quarters. The position peaked at $2.63M in Q1 2025. 41 funds tracked by Wall St. Rank hold ECX as of Q4 2025.

  • Arrowstreet Capital reported no remaining ECARX Holdings position as of Q4 2025 after selling out during the quarter.
  • Arrowstreet Capital sold 91,193 ECARX Holdings shares in Q4 2025, an estimated $183K.
  • Arrowstreet Capital first reported a position in ECARX Holdings in Q1 2025 and held it in 3 quarters.
  • Arrowstreet Capital's ECARX Holdings position peaked at $2.63M in Q1 2025.
  • 41 funds tracked by Wall St. Rank held ECARX Holdings as of Q4 2025.

Based on Arrowstreet Capital's 13F filing for Q4 2025, filed 13 Feb 2026.