Jane Street’s ECARX Holdings ECX Stock Holding History

Jane Street’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	$615K	Sell	628,494 -1,681,375	-73%	-$2.67M	﹤0.01%	7557
2025 Q4	$3.97M	Buy	2,309,869 +1,525,093	+194%	+$3.09M	﹤0.01%	3601
2025 Q3	$1.58M	Buy	+784,776	New	+$1.39M	﹤0.01%	5385
2025 Q2	–	Sell	-576,490	Closed	-$726K	–	9900
2025 Q1	$726K	Buy	576,490 +404,119	+234%	+$864K	﹤0.01%	6170
2024 Q4	$364K	Buy	+172,371	New	+$318K	﹤0.01%	7404
2024 Q3	–	Sell	-71,096	Closed	-$146K	–	9736
2024 Q2	$146K	Buy	+71,096	New	+$108K	﹤0.01%	8590
2024 Q1	–	Sell	-14,559	Closed	-$46K	–	9395
2023 Q4	$46K	Buy	+14,559	New	+$47.8K	﹤0.01%	8792

Other funds holding ECX

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

Tudor Investment Corp Stamford, Connecticut $53.9B AUM 29.12% 1-Year Est. Return

Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return

State Street Boston, Massachusetts $3.37T AUM 44.26% 1-Year Est. Return

Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return

Marshall Wace London, United Kingdom $100B AUM 35.1% 1-Year Est. Return

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Mitsubishi UFJ Asset Management Tokyo, Japan $180B AUM 37.51% 1-Year Est. Return

Barclays London, United Kingdom $416B AUM 33.63% 1-Year Est. Return

Invesco Atlanta, Georgia $1.02T AUM 30.18% 1-Year Est. Return

Jane Street's ECX Position: Q1 2026 in Review

Jane Street reduced its ECARX Holdings (ECX) stake by 73% in Q1 2026, selling an estimated $2.67M and leaving 628,494 shares worth $615K. The position accounts for ﹤0.01% of the portfolio, ranked #7557.

Jane Street first reported a position in ECX in Q4 2023 and has held it in 7 quarters since. The position peaked at $3.97M in Q4 2025. 39 funds tracked by Wall St. Rank hold ECX as of Q1 2026.

Jane Street held 628,494 shares of ECARX Holdings worth $615K as of Q1 2026.
Jane Street sold 1,681,375 ECARX Holdings shares in Q1 2026, an estimated $2.67M.
ECARX Holdings made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #7557 holding.
Jane Street first reported a position in ECARX Holdings in Q4 2023 and has held it in 7 quarters since.
Jane Street's ECARX Holdings position peaked at $3.97M in Q4 2025.
39 funds tracked by Wall St. Rank held ECARX Holdings as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.