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
Q2 		$302K Buy
+6,300
New +$278K ﹤0.01% 11107
2026
Q1 		– Sell
-5,600
Closed -$272K – 14202
2025
Q4 		$272K Buy
5,600
+2,400
+75% +$173K ﹤0.01% 10364
2025
Q3 		$263K Buy
+3,200
New +$209K ﹤0.01% 10653
2025
Q2 		– Sell
-3,700
Closed -$105K – 15025
2025
Q1 		$105K Buy
3,700
+2,900
+363% +$126K ﹤0.01% 11377
2024
Q4 		$34.9K Sell
800
-1,200
-60% -$48.6K ﹤0.01% 12735
2024
Q3 		$65K Sell
2,000
-7,600
-79% -$228K ﹤0.01% 11630
2024
Q2 		$282K Sell
9,600
-3,800
-28% -$118K ﹤0.01% 9260
2024
Q1 		$535K Sell
13,400
-12,000
-47% -$466K ﹤0.01% 8246
2023
Q4 		$1.17M Sell
25,400
-1,800
-7% -$59.2K ﹤0.01% 6370
2023
Q3 		$764K Buy
27,200
+5,200
+24% +$186K ﹤0.01% 7156
2023
Q2 		$810K Buy
22,000
+21,800
+10,900% +$667K ﹤0.01% 6896
2023
Q1 		$6.43K Buy
+200
New +$6.07K ﹤0.01% 13809

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.