Simplex Trading
MSTZ

Simplex Trading’s T-Rex 2X Inverse MSTR Daily Target ETF MSTZ Stock Holding History

Simplex Trading’s Portfolio MSTZ Stock Details MSTZ Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		– Sell
-3,011
Closed -$37.6K – 10535
2026
Q1 		$37.6K Buy
+3,011
New +$40.2K ﹤0.01% 6162
2025
Q4 		– Sell
-10,213
Closed -$53K – 10417
2025
Q3 		$53K Sell
10,213
-94,945
-90% -$426K ﹤0.01% 6407
2025
Q2 		$439K Buy
105,158
+104,465
+15,074% +$655K ﹤0.01% 3637
2025
Q1 		$9K Buy
+693
New +$12.2K ﹤0.01% 7214

Other funds holding MSTZ

HF
HRT Financial New York $54.8B AUM 81.03% 1-Year Est. Return
SG
StoneX Group New York $2.48B AUM 33.54% 1-Year Est. Return
Susquehanna International Group
Susquehanna International Group Bala Cynwyd, Pennsylvania $1.28T AUM 58.89% 1-Year Est. Return
Jane Street
Jane Street New York $1.21T AUM 78.12% 1-Year Est. Return
IMC Chicago
IMC Chicago Chicago, Illinois $419B AUM 72.04% 1-Year Est. Return
Group One Trading
Group One Trading Chicago, Illinois $71.1B AUM 128.96% 1-Year Est. Return
XT
XTX Topco George Town, Cayman Islands $7.72B AUM 32.88% 1-Year Est. Return
TSS
Two Sigma Securities New York $1.16B AUM 36.23% 1-Year Est. Return
Optiver Holding
Optiver Holding Amsterdam, Netherlands $371B AUM 64.6% 1-Year Est. Return
GS
GTS Securities Miami, Florida $4.75B AUM 41.97% 1-Year Est. Return

Simplex Trading's MSTZ Position: Q2 2026 in Review

Simplex Trading sold out of T-Rex 2X Inverse MSTR Daily Target ETF (MSTZ) in Q2 2026, closing a stake of 3,011 shares — an estimated $37.6K sold.

Simplex Trading first reported a position in MSTZ in Q1 2025 and held it in 4 quarters. The position peaked at $439K in Q2 2025. 16 funds tracked by Wall St. Rank hold MSTZ as of Q2 2026.

  • Simplex Trading reported no remaining T-Rex 2X Inverse MSTR Daily Target ETF position as of Q2 2026 after selling out during the quarter.
  • Simplex Trading sold 3,011 T-Rex 2X Inverse MSTR Daily Target ETF shares in Q2 2026, an estimated $37.6K.
  • Simplex Trading first reported a position in T-Rex 2X Inverse MSTR Daily Target ETF in Q1 2025 and held it in 4 quarters.
  • Simplex Trading's T-Rex 2X Inverse MSTR Daily Target ETF position peaked at $439K in Q2 2025.
  • 16 funds tracked by Wall St. Rank held T-Rex 2X Inverse MSTR Daily Target ETF as of Q2 2026.

Based on Simplex Trading's 13F filing for Q2 2026, filed 12 Aug 2026.