Optiver Holding’s T-REX 2X Long CIFR Daily Target ETF CIFU Stock Holding History

Optiver Holding’s Portfolio CIFU Stock Details CIFU Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$231K	Sell	19,509 -10,065	-34%	-$220K	﹤0.01%	781
2025 Q4	$651K	Buy	+29,574	New	+$939K	﹤0.01%	542

Other funds holding CIFU

Simplex Trading Chicago, Illinois $149B AUM 62.07% 1-Year Est. Return

FIA

FNY Investment Advisers New York $278M AUM 98.95% 1-Year Est. Return

TRCT

Tower Research Capital (TRC) New York $3.85B AUM 32.11% 1-Year Est. Return

Optiver Holding's CIFU Position: Q1 2026 in Review

Optiver Holding reduced its T-REX 2X Long CIFR Daily Target ETF (CIFU) stake by 34% in Q1 2026, selling an estimated $220K and leaving 19,509 shares worth $231K. The position accounts for ﹤0.01% of the portfolio, ranked #781.

Optiver Holding first reported a position in CIFU in Q4 2025 and has held it in 2 quarters since. The position peaked at $651K in Q4 2025. 4 funds tracked by Wall St. Rank hold CIFU as of Q1 2026.

Optiver Holding held 19,509 shares of T-REX 2X Long CIFR Daily Target ETF worth $231K as of Q1 2026.
Optiver Holding sold 10,065 T-REX 2X Long CIFR Daily Target ETF shares in Q1 2026, an estimated $220K.
T-REX 2X Long CIFR Daily Target ETF made up ﹤0.01% of Optiver Holding's portfolio in Q1 2026, its #781 holding.
Optiver Holding first reported a position in T-REX 2X Long CIFR Daily Target ETF in Q4 2025 and has held it in 2 quarters since.
Optiver Holding's T-REX 2X Long CIFR Daily Target ETF position peaked at $651K in Q4 2025.
4 funds tracked by Wall St. Rank held T-REX 2X Long CIFR Daily Target ETF as of Q1 2026.

Based on Optiver Holding's 13F filing for Q1 2026, filed 15 May 2026.