Citadel Advisors
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Citadel Advisors’s Tradr 2X Long Innovation ETF TARK Stock Holding History

Citadel Advisors’s Portfolio TARK Stock Details TARK Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		– Sell
-5,200
Closed -$252K – 14201
2025
Q4 		$252K Sell
5,200
-700
-12% -$50.4K ﹤0.01% 10526
2025
Q3 		$484K Sell
5,900
-16,600
-74% -$1.09M ﹤0.01% 9215
2025
Q2 		$1.27M Buy
22,500
+17,400
+341% +$632K ﹤0.01% 6585
2025
Q1 		$145K Buy
5,100
+2,100
+70% +$91.5K ﹤0.01% 10925
2024
Q4 		$131K Sell
3,000
-5,400
-64% -$219K ﹤0.01% 11082
2024
Q3 		$273K Buy
8,400
+600
+8% +$18K ﹤0.01% 9523
2024
Q2 		$229K Sell
7,800
-1,200
-13% -$37.3K ﹤0.01% 9642
2024
Q1 		$359K Sell
9,000
-400
-4% -$15.5K ﹤0.01% 9086
2023
Q4 		$433K Buy
9,400
+3,200
+52% +$105K ﹤0.01% 8411
2023
Q3 		$174K Buy
6,200
+600
+11% +$21.5K ﹤0.01% 10135
2023
Q2 		$206K Buy
5,600
+4,400
+367% +$135K ﹤0.01% 9819
2023
Q1 		$38.6K Buy
+1,200
New +$36.4K ﹤0.01% 12469

Other funds holding TARK

Optiver Holding
Optiver Holding Amsterdam, Netherlands $371B AUM 64.6% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return
HF
HRT Financial New York $54.8B AUM 81.03% 1-Year Est. Return
Simplex Trading
Simplex Trading Chicago, Illinois $171B AUM 85% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Qube Research & Technologies (QRT)
Qube Research & Technologies (QRT) London, United Kingdom $108B AUM 37.29% 1-Year Est. Return

Citadel Advisors's TARK Position: Q2 2026 in Review

Citadel Advisors opened a new position in Tradr 2X Long Innovation ETF (TARK) in Q2 2026: 4,744 shares worth $228K. The stake represents ﹤0.01% of the portfolio and ranks #11765 among its holdings. This is a return to the name: Citadel Advisors previously reported a position in TARK as recently as Q1 2025.

Citadel Advisors first reported a position in TARK in Q2 2022 and has held it in 12 quarters since. The position peaked at $3.11M in Q2 2023. 7 funds tracked by Wall St. Rank hold TARK as of Q2 2026.

  • Citadel Advisors held 4,744 shares of Tradr 2X Long Innovation ETF worth $228K as of Q2 2026.
  • Tradr 2X Long Innovation ETF was a new Citadel Advisors position in Q2 2026.
  • Tradr 2X Long Innovation ETF made up ﹤0.01% of Citadel Advisors's portfolio in Q2 2026, its #11765 holding.
  • Citadel Advisors first reported a position in Tradr 2X Long Innovation ETF in Q2 2022 and has held it in 12 quarters since.
  • Citadel Advisors's Tradr 2X Long Innovation ETF position peaked at $3.11M in Q2 2023.
  • 7 funds tracked by Wall St. Rank held Tradr 2X Long Innovation ETF as of Q2 2026.

Based on Citadel Advisors's 13F filing for Q2 2026, filed 14 Aug 2026.