Jane Street
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Jane Street’s ARK 21Shares Bitcoin ETF ARKB Stock Holding History

Jane Street’s Portfolio ARKB Stock Details ARKB Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$251K Sell
12,900
-25,300
-66% -$602K ﹤0.01% 9595
2026
Q1 		$859K Buy
+38,200
New +$968K ﹤0.01% 6848
2025
Q4 		– Sell
-33,700
Closed -$1.28M – 11049
2025
Q3 		$1.28M Sell
33,700
-15,100
-31% -$575K ﹤0.01% 5797
2025
Q2 		$1.75M Buy
48,800
+9,200
+23% +$302K ﹤0.01% 4641
2025
Q1 		$1.09M Buy
+39,600
New +$1.23M ﹤0.01% 5409

Other funds holding ARKB

AIM
ARK Investment Management St. Petersburg, Florida $15.4B AUM 50.29% 1-Year Est. Return
SSA
Schonfeld Strategic Advisors New York $27.9B AUM 51.18% 1-Year Est. Return
GD
Galaxy Digital New York $1.7B AUM
ISS
Intesa Sanpaolo SpA. Turin, Italy $2.92B AUM
HI
HBK Investments Dallas, Texas $10.2B AUM 67.73% 1-Year Est. Return
Millennium Management
Millennium Management New York $276B AUM 44.8% 1-Year Est. Return
KC
Kaleidoscope Capital Boston, Massachusetts $271M AUM 24.36% 1-Year Est. Return
TI
Tidal Investments Milwaukee, Wisconsin $57.8B AUM 72.54% 1-Year Est. Return
CWP
Cyndeo Wealth Partners St. Petersburg, Florida $2.12B AUM 24.61% 1-Year Est. Return
TAM
Titleist Asset Management San Antonio, Texas $1.49B AUM 22.27% 1-Year Est. Return

Jane Street's ARKB Position: Q2 2026 in Review

Jane Street increased its ARK 21Shares Bitcoin ETF (ARKB) stake by 55% in Q2 2026, buying an estimated $22.8M and bringing the position to 2,700,151 shares worth $52.5M. The position accounts for ﹤0.01% of the portfolio, ranked #1389.

Jane Street first reported a position in ARKB in Q1 2024 and has held it in 10 quarters since. The position peaked at $412M in Q1 2025. 125 funds tracked by Wall St. Rank hold ARKB as of Q2 2026.

  • Jane Street held 2,700,151 shares of ARK 21Shares Bitcoin ETF worth $52.5M as of Q2 2026.
  • Jane Street bought 956,061 ARK 21Shares Bitcoin ETF shares in Q2 2026, an estimated $22.8M.
  • ARK 21Shares Bitcoin ETF made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #1389 holding.
  • Jane Street first reported a position in ARK 21Shares Bitcoin ETF in Q1 2024 and has held it in 10 quarters since.
  • Jane Street's ARK 21Shares Bitcoin ETF position peaked at $412M in Q1 2025.
  • 125 funds tracked by Wall St. Rank held ARK 21Shares Bitcoin ETF as of Q2 2026.

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