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

Optiver Holding’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	$3.7M	Buy	77,002 +53,112	+222%	+$2.34M	﹤0.01%	496
2026 Q1	$842K	Buy	23,890 +20,306	+567%	+$895K	﹤0.01%	575
2025 Q4	$174K	Sell	3,584 -7,029	-66%	-$506K	﹤0.01%	734
2025 Q3	$871K	Sell	10,613 -18,768	-64%	-$1.23M	﹤0.01%	476
2025 Q2	$1.65M	Buy	+29,381	New	+$1.07M	﹤0.01%	283

Other funds holding TARK

Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return

HRT Financial New York $54.8B AUM 81.03% 1-Year Est. Return

Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return

Simplex Trading Chicago, Illinois $171B AUM 85% 1-Year Est. Return

UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return

Qube Research & Technologies (QRT) London, United Kingdom $108B AUM 37.29% 1-Year Est. Return

Optiver Holding's TARK Position: Q2 2026 in Review

Optiver Holding increased its Tradr 2X Long Innovation ETF (TARK) stake by 222% in Q2 2026, buying an estimated $2.34M and bringing the position to 77,002 shares worth $3.7M. The position accounts for ﹤0.01% of the portfolio, ranked #496.

Optiver Holding first reported a position in TARK in Q2 2025 and has held it in 5 quarters since. 7 funds tracked by Wall St. Rank hold TARK as of Q2 2026.

Optiver Holding held 77,002 shares of Tradr 2X Long Innovation ETF worth $3.7M as of Q2 2026.
Optiver Holding bought 53,112 Tradr 2X Long Innovation ETF shares in Q2 2026, an estimated $2.34M.
Tradr 2X Long Innovation ETF made up ﹤0.01% of Optiver Holding's portfolio in Q2 2026, its #496 holding.
Optiver Holding first reported a position in Tradr 2X Long Innovation ETF in Q2 2025 and has held it in 5 quarters since.
7 funds tracked by Wall St. Rank held Tradr 2X Long Innovation ETF as of Q2 2026.

Based on Optiver Holding's 13F filing for Q2 2026, filed 12 Aug 2026.