Jane Street
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Jane Street’s Arqit Quantum ARQQ Stock Holding History

Jane Street’s Portfolio ARQQ Stock Details ARQQ Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$200K Sell
15,100
-21,200
-58% -$399K ﹤0.01% 10151
2025
Q4 		$794K Sell
36,300
-31,800
-47% -$1.1M ﹤0.01% 6634
2025
Q3 		$2.64M Buy
68,100
+8,700
+15% +$301K ﹤0.01% 4436
2025
Q2 		$2.2M Buy
59,400
+47,100
+383% +$1.01M ﹤0.01% 4263
2025
Q1 		$170K Buy
+12,300
New +$242K ﹤0.01% 8558
2022
Q2 		– Sell
-4,116
Closed -$1.6M – 9601
2022
Q1 		$1.6M Sell
4,116
-4,004
-49% -$1.61M ﹤0.01% 5166
2021
Q4 		$4.86M Buy
+8,120
New +$4.52M ﹤0.01% 2902

Other funds holding ARQQ

DE
Defiance ETFs New York $6.98B AUM
PCM
Penserra Capital Management Orinda, California $8.52B AUM 37.76% 1-Year Est. Return
Mirae Asset Global ETFs Holdings
Mirae Asset Global ETFs Holdings Causeway Bay, Hong Kong $73.7B AUM 53.56% 1-Year Est. Return
KIG
Kessler Investment Group Columbus, Indiana $234M AUM 51.88% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Raymond James Financial
Raymond James Financial St Petersburg, Florida $324B AUM 22.36% 1-Year Est. Return
Millennium Management
Millennium Management New York $240B AUM 35.51% 1-Year Est. Return
Legal & General Group
Legal & General Group London, United Kingdom $432B AUM 29.4% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
Tudor Investment Corp
Tudor Investment Corp Stamford, Connecticut $53.9B AUM 29.12% 1-Year Est. Return

Jane Street's ARQQ Position: Q1 2026 in Review

Jane Street reduced its Arqit Quantum (ARQQ) stake by 50% in Q1 2026, selling an estimated $613K and leaving 33,199 shares worth $440K. The position accounts for ﹤0.01% of the portfolio, ranked #8360.

Jane Street first reported a position in ARQQ in Q3 2021 and has held it in 12 quarters since. The position peaked at $1.44M in Q4 2025. 57 funds tracked by Wall St. Rank hold ARQQ as of Q1 2026.

  • Jane Street held 33,199 shares of Arqit Quantum worth $440K as of Q1 2026.
  • Jane Street sold 32,576 Arqit Quantum shares in Q1 2026, an estimated $613K.
  • Arqit Quantum made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #8360 holding.
  • Jane Street first reported a position in Arqit Quantum in Q3 2021 and has held it in 12 quarters since.
  • Jane Street's Arqit Quantum position peaked at $1.44M in Q4 2025.
  • 57 funds tracked by Wall St. Rank held Arqit Quantum as of Q1 2026.

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