Optiver Holding’s Defiance Daily Target 2X Long SOFI ETF SOFX Stock Holding History

Optiver Holding’s Portfolio SOFX Stock Details SOFX Fund Activity

Bought

Maintained

Sold

Quarter	Market Value	Status	Shares	Change in Stake	Trade Value	Portfolio Weight	Portfolio Position
2026 Q1	$502K	Buy	53,788 +45,762	+570%	+$831K	﹤0.01%	652
2025 Q4	$228K	Buy	+8,026	New	+$314K	﹤0.01%	684
2025 Q3	–	Sell	-14,832	Closed	-$302K	–	2915
2025 Q2	$302K	Buy	+14,832	New	+$169K	﹤0.01%	423

Other funds holding SOFX

UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return

Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return

GTS Securities New York $2.83B AUM 21.76% 1-Year Est. Return

Group One Trading Chicago, Illinois $52.2B AUM 104.56% 1-Year Est. Return

Optiver Holding's SOFX Position: Q1 2026 in Review

Optiver Holding increased its Defiance Daily Target 2X Long SOFI ETF (SOFX) stake by 570% in Q1 2026, buying an estimated $831K and bringing the position to 53,788 shares worth $502K. The position accounts for ﹤0.01% of the portfolio, ranked #652.

Optiver Holding first reported a position in SOFX in Q2 2025 and has held it in 3 quarters since. 5 funds tracked by Wall St. Rank hold SOFX as of Q1 2026.

Optiver Holding held 53,788 shares of Defiance Daily Target 2X Long SOFI ETF worth $502K as of Q1 2026.
Optiver Holding bought 45,762 Defiance Daily Target 2X Long SOFI ETF shares in Q1 2026, an estimated $831K.
Defiance Daily Target 2X Long SOFI ETF made up ﹤0.01% of Optiver Holding's portfolio in Q1 2026, its #652 holding.
Optiver Holding first reported a position in Defiance Daily Target 2X Long SOFI ETF in Q2 2025 and has held it in 3 quarters since.
5 funds tracked by Wall St. Rank held Defiance Daily Target 2X Long SOFI ETF as of Q1 2026.

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