Jim Simons
IONX

Jim Simons’s Defiance Daily Target 2X Long IONQ ETF IONX Stock Holding History

Jim Simons’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 		$624K Buy
+30,000
New +$1.34M ﹤0.01% 2509
2025
Q4 		– Sell
-6,133
Closed -$1.08M – 3907
2025
Q3 		$1.08M Buy
+6,133
New +$718K ﹤0.01% 2450

Other funds holding IONX

UBS Group
UBS Group Zurich, Switzerland $666B AUM 30.12% 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 $87.6B AUM 131.08% 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
Jane Street
Jane Street New York $777B AUM 61.18% 1-Year Est. Return
TRCT
Tower Research Capital (TRC) New York $4.08B AUM 58.77% 1-Year Est. Return
TSMHT
Thurston Springer Miller Herd & Titak Indianapolis, Indiana $275M AUM 30.64% 1-Year Est. Return

Jim Simons's IONX Position: Q1 2026 in Review

Jim Simons opened a new position in Defiance Daily Target 2X Long IONQ ETF (IONX) in Q1 2026: 30,000 shares worth $624K. The stake represents ﹤0.01% of the portfolio and ranks #2509 among its holdings. This is a return to the name: Jim Simons previously reported a position in IONX as recently as Q3 2025.

Jim Simons first reported a position in IONX in Q3 2025 and has held it in 2 quarters since. The position peaked at $1.08M in Q3 2025. 10 funds tracked by Wall St. Rank hold IONX as of Q1 2026.

  • Jim Simons held 30,000 shares of Defiance Daily Target 2X Long IONQ ETF worth $624K as of Q1 2026.
  • Defiance Daily Target 2X Long IONQ ETF was a new Jim Simons position in Q1 2026.
  • Defiance Daily Target 2X Long IONQ ETF made up ﹤0.01% of Jim Simons's portfolio in Q1 2026, its #2509 holding.
  • Jim Simons first reported a position in Defiance Daily Target 2X Long IONQ ETF in Q3 2025 and has held it in 2 quarters since.
  • Jim Simons's Defiance Daily Target 2X Long IONQ ETF position peaked at $1.08M in Q3 2025.
  • 10 funds tracked by Wall St. Rank held Defiance Daily Target 2X Long IONQ ETF as of Q1 2026.

Based on Renaissance Technologies's 13F filing for Q1 2026, filed 14 May 2026.