Jane Street’s ARK Space & Defense Innovation ETF ARKX Stock Holding History

Jane Street’s Portfolio ARKX Stock Details ARKX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$1.4M	Sell	47,600 -900	-2%	-$28.8K	﹤0.01%	5777
2025 Q4	$1.41M	Sell	48,500 -12,300	-20%	-$359K	﹤0.01%	5445
2025 Q3	$1.74M	Buy	60,800 +48,000	+375%	+$1.26M	﹤0.01%	5201
2025 Q2	$309K	Sell	12,800 -10,900	-46%	-$218K	﹤0.01%	7806
2025 Q1	$420K	Buy	+23,700	New	+$468K	﹤0.01%	7184
2023 Q1	–	Sell	-28,100	Closed	-$348K	–	8973
2022 Q4	$348K	Buy	28,100 +3,500	+14%	+$44.9K	﹤0.01%	6765
2022 Q3	$304K	Sell	24,600 -2,900	-11%	-$41.3K	﹤0.01%	7570
2022 Q2	$369K	Buy	27,500 +6,200	+29%	+$93.8K	﹤0.01%	7250
2022 Q1	$382K	Buy	21,300 +9,200	+76%	+$157K	﹤0.01%	7960
2021 Q4	$228K	Buy	+12,100	New	+$239K	﹤0.01%	8616

Other funds holding ARKX

LPL Financial San Diego, California $377B AUM 19.32% 1-Year Est. Return

FTUS

Flow Traders U.S. New York $3.16B AUM 19.52% 1-Year Est. Return

Citadel Advisors Miami, Florida $618B AUM 30.34% 1-Year Est. Return

Cambridge Investment Research Advisors Fairfield, Iowa $44.6B AUM 28.94% 1-Year Est. Return

Royal Bank of Canada Toronto, Ontario, Canada $570B AUM 27.57% 1-Year Est. Return

Raymond James Financial St Petersburg, Florida $324B AUM 22.36% 1-Year Est. Return

Quadrature Capital London, United Kingdom $8.4B AUM 63.34% 1-Year Est. Return

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

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

GTS Securities New York $2.83B AUM 21.76% 1-Year Est. Return

Jane Street's ARKX Position: Q2 2025 in Review

Jane Street sold out of ARK Space & Defense Innovation ETF (ARKX) in Q2 2025, closing a stake of 10,352 shares — an estimated $207K sold.

Jane Street first reported a position in ARKX in Q1 2021 and held it in 16 quarters. The position peaked at $22.2M in Q1 2021. 84 funds tracked by Wall St. Rank hold ARKX as of Q2 2025.

Jane Street reported no remaining ARK Space & Defense Innovation ETF position as of Q2 2025 after selling out during the quarter.
Jane Street sold 10,352 ARK Space & Defense Innovation ETF shares in Q2 2025, an estimated $207K.
Jane Street first reported a position in ARK Space & Defense Innovation ETF in Q1 2021 and held it in 16 quarters.
Jane Street's ARK Space & Defense Innovation ETF position peaked at $22.2M in Q1 2021.
84 funds tracked by Wall St. Rank held ARK Space & Defense Innovation ETF as of Q2 2025.

Based on Jane Street's 13F filing for Q2 2025, filed 14 Aug 2025.