Optiver Holding’s Tradr 2X Long QUBT Daily ETF QUBX Stock Holding History

Optiver Holding’s Portfolio QUBX Stock Details QUBX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$107K	Sell	9,812 -10,234	-51%	-$135K	﹤0.01%	1012
2026 Q1	$148K	Buy	20,046 +15,208	+314%	+$248K	﹤0.01%	848
2025 Q4	$104K	Buy	4,838 +4,417	+1,049%	+$252K	﹤0.01%	808
2025 Q3	$44.6K	Buy	+421	New	+$45.1K	﹤0.01%	803

Other funds holding QUBX

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

Strategic Blueprint Atlanta, Georgia $2B AUM 27.02% 1-Year Est. Return

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

Belvedere Trading Chicago, Illinois $87.6B AUM 131.08% 1-Year Est. Return

Optiver Holding's QUBX Position: Q2 2026 in Review

Optiver Holding reduced its Tradr 2X Long QUBT Daily ETF (QUBX) stake by 51% in Q2 2026, selling an estimated $135K and leaving 9,812 shares worth $107K. The position accounts for ﹤0.01% of the portfolio, ranked #1012.

Optiver Holding first reported a position in QUBX in Q3 2025 and has held it in 4 quarters since. The position peaked at $148K in Q1 2026. 6 funds tracked by Wall St. Rank hold QUBX as of Q2 2026.

Optiver Holding held 9,812 shares of Tradr 2X Long QUBT Daily ETF worth $107K as of Q2 2026.
Optiver Holding sold 10,234 Tradr 2X Long QUBT Daily ETF shares in Q2 2026, an estimated $135K.
Tradr 2X Long QUBT Daily ETF made up ﹤0.01% of Optiver Holding's portfolio in Q2 2026, its #1012 holding.
Optiver Holding first reported a position in Tradr 2X Long QUBT Daily ETF in Q3 2025 and has held it in 4 quarters since.
Optiver Holding's Tradr 2X Long QUBT Daily ETF position peaked at $148K in Q1 2026.
6 funds tracked by Wall St. Rank held Tradr 2X Long QUBT Daily ETF as of Q2 2026.

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