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
Q1 		– Sell
-9,167
Closed -$597K – 13419
2025
Q4 		$597K Buy
+9,167
New +$1.19M ﹤0.01% 7295

Other funds holding IONX

UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 1-Year Est. Return
Renaissance Technologies
Renaissance Technologies New York $63.9B AUM 45.56% 1-Year Est. Return
JF
Jump Financial Chicago, Illinois $7.5B AUM 33.9% 1-Year Est. Return
HF
HRT Financial New York $40.1B AUM 58.22% 1-Year Est. Return
Belvedere Trading
Belvedere Trading Chicago, Illinois $84.4B AUM 52.68% 1-Year Est. Return
Group One Trading
Group One Trading Chicago, Illinois $52.2B AUM 104.56% 1-Year Est. Return
SG
StoneX Group New York $1.86B AUM 21.3% 1-Year Est. Return
TRCT
Tower Research Capital (TRC) New York $3.85B AUM 32.11% 1-Year Est. Return
TSMHT
Thurston Springer Miller Herd & Titak Indianapolis, Indiana $275M AUM 30.64% 1-Year Est. Return

Jane Street's IONX Position: Q1 2026 in Review

Jane Street opened a new position in Defiance Daily Target 2X Long IONQ ETF (IONX) in Q1 2026: 10,316 shares worth $214K. The stake represents ﹤0.01% of the portfolio and ranks #9985 among its holdings. This is a return to the name: Jane Street previously reported a position in IONX as recently as Q2 2025.

Jane Street first reported a position in IONX in Q2 2025 and has held it in 2 quarters since. The position peaked at $686K in Q2 2025. 10 funds tracked by Wall St. Rank hold IONX as of Q1 2026.

  • Jane Street held 10,316 shares of Defiance Daily Target 2X Long IONQ ETF worth $214K as of Q1 2026.
  • Defiance Daily Target 2X Long IONQ ETF was a new Jane Street position in Q1 2026.
  • Defiance Daily Target 2X Long IONQ ETF made up ﹤0.01% of Jane Street's portfolio in Q1 2026, its #9985 holding.
  • Jane Street first reported a position in Defiance Daily Target 2X Long IONQ ETF in Q2 2025 and has held it in 2 quarters since.
  • Jane Street's Defiance Daily Target 2X Long IONQ ETF position peaked at $686K in Q2 2025.
  • 10 funds tracked by Wall St. Rank held Defiance Daily Target 2X Long IONQ ETF as of Q1 2026.

Based on Jane Street's 13F filing for Q1 2026, filed 12 May 2026.