Optiver Holding’s Tradr 2X Short IREN Daily ETF IREZ Stock Holding History

Optiver Holding’s Portfolio IREZ Stock Details IREZ Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q2	$1.87M	Buy	77,061 +67,165	+679%	+$2.19M	﹤0.01%	560
2026 Q1	$893K	Buy	+9,896	New	+$751K	﹤0.01%	570

Other funds holding IREZ

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

GTS Securities Miami, Florida $4.75B AUM 41.97% 1-Year Est. Return

StoneX Group New York $2.48B AUM 33.54% 1-Year Est. Return

FTUS

Flow Traders U.S. New York $2.43B AUM 44.44% 1-Year Est. Return

Jump Financial Chicago, Illinois $12.4B AUM 62.79% 1-Year Est. Return

Group One Trading Chicago, Illinois $71.1B AUM 128.96% 1-Year Est. Return

Optiver Holding's IREZ Position: Q2 2026 in Review

Optiver Holding increased its Tradr 2X Short IREN Daily ETF (IREZ) stake by 679% in Q2 2026, buying an estimated $2.19M and bringing the position to 77,061 shares worth $1.87M. The position accounts for ﹤0.01% of the portfolio, ranked #560.

Optiver Holding first reported a position in IREZ in Q1 2026 and has held it in 2 quarters since. 7 funds tracked by Wall St. Rank hold IREZ as of Q2 2026.

Optiver Holding held 77,061 shares of Tradr 2X Short IREN Daily ETF worth $1.87M as of Q2 2026.
Optiver Holding bought 67,165 Tradr 2X Short IREN Daily ETF shares in Q2 2026, an estimated $2.19M.
Tradr 2X Short IREN Daily ETF made up ﹤0.01% of Optiver Holding's portfolio in Q2 2026, its #560 holding.
Optiver Holding first reported a position in Tradr 2X Short IREN Daily ETF in Q1 2026 and has held it in 2 quarters since.
7 funds tracked by Wall St. Rank held Tradr 2X Short IREN Daily ETF as of Q2 2026.

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