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 Q2	–	Sell	-628,494	Closed	-$615K	–	11893
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 $1.28T AUM 58.89% 1-Year Est. Return

Legal & General Group London, United Kingdom $480B AUM 42.84% 1-Year Est. Return

Tudor Investment Corp Stamford, Connecticut $71.9B AUM 42.37% 1-Year Est. Return

Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return

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

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Barclays London, United Kingdom $521B AUM 51.41% 1-Year Est. Return

Marshall Wace London, United Kingdom $127B AUM 46.06% 1-Year Est. Return

State Street Boston, Massachusetts $3.38T AUM 44.17% 1-Year Est. Return

CCS

Concentric Capital Strategies Stamford, Connecticut $1.8B AUM 51.77% 1-Year Est. Return

Jane Street's ECX Position: Q2 2026 in Review

Jane Street sold out of ECARX Holdings (ECX) in Q2 2026, closing a stake of 628,494 shares — an estimated $615K sold.

Jane Street first reported a position in ECX in Q4 2023 and held it in 7 quarters. The position peaked at $3.97M in Q4 2025. 39 funds tracked by Wall St. Rank hold ECX as of Q2 2026.

Jane Street reported no remaining ECARX Holdings position as of Q2 2026 after selling out during the quarter.
Jane Street sold 628,494 ECARX Holdings shares in Q2 2026, an estimated $615K.
Jane Street first reported a position in ECARX Holdings in Q4 2023 and held it in 7 quarters.
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 Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.