Marshall Wace
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Marshall Wace’s ECARX Holdings ECX Stock Holding History

Marshall Wace’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
2026
Q1 		$743K Buy
758,117
+510,285
+206% +$810K ﹤0.01% 2278
2025
Q4 		$426K Buy
+247,832
New +$502K ﹤0.01% 2307
2025
Q2 		– Sell
-31,990
Closed -$40.3K – 2819
2025
Q1 		$40.3K Sell
31,990
-84,336
-72% -$180K ﹤0.01% 2543
2024
Q4 		$245K Buy
+116,326
New +$215K ﹤0.01% 2293
2024
Q1 		– Sell
-16,301
Closed -$51.5K – 2533
2023
Q4 		$51.5K Sell
16,301
-2,407
-13% -$7.9K ﹤0.01% 2075
2023
Q3 		$58K Buy
+18,708
New +$82.7K ﹤0.01% 2078

Other funds holding ECX

Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 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 $2.9T AUM 29.55% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
Mitsubishi UFJ Asset Management
Mitsubishi UFJ Asset Management Tokyo, Japan $149B AUM 24.71% 1-Year Est. Return
Barclays
Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return
Invesco
Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Marshall Wace's ECX Position: Q1 2026 in Review

Marshall Wace increased its ECARX Holdings (ECX) stake by 206% in Q1 2026, buying an estimated $810K and bringing the position to 758,117 shares worth $743K. The position accounts for ﹤0.01% of the portfolio, ranked #2278.

Marshall Wace first reported a position in ECX in Q3 2023 and has held it in 6 quarters since. 39 funds tracked by Wall St. Rank hold ECX as of Q1 2026.

  • Marshall Wace held 758,117 shares of ECARX Holdings worth $743K as of Q1 2026.
  • Marshall Wace bought 510,285 ECARX Holdings shares in Q1 2026, an estimated $810K.
  • ECARX Holdings made up ﹤0.01% of Marshall Wace's portfolio in Q1 2026, its #2278 holding.
  • Marshall Wace first reported a position in ECARX Holdings in Q3 2023 and has held it in 6 quarters since.
  • 39 funds tracked by Wall St. Rank held ECARX Holdings as of Q1 2026.

Based on Marshall Wace's 13F filing for Q1 2026, filed 15 May 2026.