Jane Street
IONX

Jane Street’s Defiance Daily Target 2X Long IONQ ETF IONX Stock Holding History

Jane Street’s Portfolio IONX Stock Details IONX Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$556K Buy
+10,933
New +$605K ﹤0.01% 7752
2026
Q1 		– Sell
-9,167
Closed -$597K – 13419
2025
Q4 		$597K Buy
+9,167
New +$1.19M ﹤0.01% 7295

Other funds holding IONX

SG
StoneX Group New York $2.48B AUM 33.54% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $72.6B AUM 54.88% 1-Year Est. Return
UBS Group
UBS Group Zurich, Switzerland $786B AUM 40.34% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.89% 1-Year Est. Return
Group One Trading
Group One Trading Chicago, Illinois $71.1B AUM 128.96% 1-Year Est. Return
HF
HRT Financial New York $54.8B AUM 81.03% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return
Goldman Sachs
Goldman Sachs New York $1.15T AUM 47.82% 1-Year Est. Return
MA
MYDA Advisors Woodmere, New York $672M AUM 71.14% 1-Year Est. Return
UB
UMB Bank Kansas City, Missouri $7.9B AUM 29.3% 1-Year Est. Return

Jane Street's IONX Position: Q2 2026 in Review

Jane Street reduced its Defiance Daily Target 2X Long IONQ ETF (IONX) stake by 37% in Q2 2026, selling an estimated $213K and leaving 6,462 shares worth $329K. The position accounts for ﹤0.01% of the portfolio, ranked #9015.

Jane Street first reported a position in IONX in Q2 2025 and has held it in 3 quarters since. The position peaked at $686K in Q2 2025. 13 funds tracked by Wall St. Rank hold IONX as of Q2 2026.

  • Jane Street held 6,462 shares of Defiance Daily Target 2X Long IONQ ETF worth $329K as of Q2 2026.
  • Jane Street sold 3,854 Defiance Daily Target 2X Long IONQ ETF shares in Q2 2026, an estimated $213K.
  • Defiance Daily Target 2X Long IONQ ETF made up ﹤0.01% of Jane Street's portfolio in Q2 2026, its #9015 holding.
  • Jane Street first reported a position in Defiance Daily Target 2X Long IONQ ETF in Q2 2025 and has held it in 3 quarters since.
  • Jane Street's Defiance Daily Target 2X Long IONQ ETF position peaked at $686K in Q2 2025.
  • 13 funds tracked by Wall St. Rank held Defiance Daily Target 2X Long IONQ ETF as of Q2 2026.

Based on Jane Street's 13F filing for Q2 2026, filed 14 Aug 2026.