Optiver Holding
IONZ

Optiver Holding’s Defiance Daily Target 2x Short IONQ ETF IONZ Stock Holding History

Optiver Holding’s Portfolio IONZ Stock Details IONZ Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q1 		$216K Sell
8,684
-12,557
-59% -$273K ﹤0.01% 787
2025
Q4 		$482K Sell
21,241
-1,121
-5% -$26.2K ﹤0.01% 585
2025
Q3 		$687K Buy
+22,362
New +$1.79M ﹤0.01% 495

Other funds holding IONZ

MA
MYDA Advisors Woodmere, New York $608M AUM 77.08% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $893B AUM 36.07% 1-Year Est. Return
SG
StoneX Group New York $1.86B AUM 21.3% 1-Year Est. Return
RAM
Revere Asset Management Dallas, Texas $195M AUM 80.44% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Group One Trading
Group One Trading Chicago, Illinois $52.2B AUM 104.56% 1-Year Est. Return
Osaic Holdings
Osaic Holdings Scottsdale, Arizona $68.3B AUM 20.5% 1-Year Est. Return
Simplex Trading
Simplex Trading Chicago, Illinois $149B AUM 62.07% 1-Year Est. Return
Citigroup
Citigroup New York $235B AUM 32.99% 1-Year Est. Return

Optiver Holding's IONZ Position: Q1 2026 in Review

Optiver Holding reduced its Defiance Daily Target 2x Short IONQ ETF (IONZ) stake by 59% in Q1 2026, selling an estimated $273K and leaving 8,684 shares worth $216K. The position accounts for ﹤0.01% of the portfolio, ranked #787.

Optiver Holding first reported a position in IONZ in Q3 2025 and has held it in 3 quarters since. The position peaked at $687K in Q3 2025. 10 funds tracked by Wall St. Rank hold IONZ as of Q1 2026.

  • Optiver Holding held 8,684 shares of Defiance Daily Target 2x Short IONQ ETF worth $216K as of Q1 2026.
  • Optiver Holding sold 12,557 Defiance Daily Target 2x Short IONQ ETF shares in Q1 2026, an estimated $273K.
  • Defiance Daily Target 2x Short IONQ ETF made up ﹤0.01% of Optiver Holding's portfolio in Q1 2026, its #787 holding.
  • Optiver Holding first reported a position in Defiance Daily Target 2x Short IONQ ETF in Q3 2025 and has held it in 3 quarters since.
  • Optiver Holding's Defiance Daily Target 2x Short IONQ ETF position peaked at $687K in Q3 2025.
  • 10 funds tracked by Wall St. Rank held Defiance Daily Target 2x Short IONQ ETF as of Q1 2026.

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