Jane Street
MSTU

Jane Street’s T-Rex 2X Long MSTR Daily Target ETF MSTU Stock Holding History

Jane Street’s Portfolio MSTU Stock Details MSTU Fund Activity
Bought
Maintained
Sold
Quarter Market Value Status Shares Change in
Stake 		Trade Value Portfolio Weight Portfolio Position
2026
Q2 		$556K Buy
34,323
+19,570
+133% +$1.07M ﹤0.01% 7751
2026
Q1 		$627K Buy
14,753
+2,473
+20% +$161K ﹤0.01% 7509
2025
Q4 		$1.02M Buy
12,280
+8,321
+210% +$1.97M ﹤0.01% 6072
2025
Q3 		$1.84M Sell
3,959
-4,434
-53% -$3.03M ﹤0.01% 5093
2025
Q2 		$7.26M Sell
8,393
-13,077
-61% -$9.89M ﹤0.01% 2534
2025
Q1 		$11.7M Sell
21,470
-15,955
-43% -$12.9M ﹤0.01% 1804
2024
Q4 		$28.4M Buy
+37,425
New +$40.5M 0.01% 1013

Other funds holding MSTU

Optiver Holding
Optiver Holding Amsterdam, Netherlands $371B AUM 64.6% 1-Year Est. Return
CWM
Centric Wealth Management Chicago, Illinois $643M AUM 21% 1-Year Est. Return
SRL
Scientech Research LLC Jersey City, New Jersey $123M AUM 198.31% 1-Year Est. Return
Citadel Advisors
Citadel Advisors Miami, Florida $875B AUM 40.91% 1-Year Est. Return
SS
SBI Securities Tokyo, Japan $4.4B AUM 74.26% 1-Year Est. Return
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
TSS
Two Sigma Securities New York $1.16B AUM 36.23% 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

Jane Street's MSTU Position: Q2 2026 in Review

Jane Street sold out of T-Rex 2X Long MSTR Daily Target ETF (MSTU) in Q2 2026, closing a stake of 1,500 shares — an estimated $82.2K sold.

Jane Street first reported a position in MSTU in Q3 2024 and held it in 6 quarters. The position peaked at $90.5M in Q4 2024. 39 funds tracked by Wall St. Rank hold MSTU as of Q2 2026.

  • Jane Street reported no remaining T-Rex 2X Long MSTR Daily Target ETF position as of Q2 2026 after selling out during the quarter.
  • Jane Street sold 1,500 T-Rex 2X Long MSTR Daily Target ETF shares in Q2 2026, an estimated $82.2K.
  • Jane Street first reported a position in T-Rex 2X Long MSTR Daily Target ETF in Q3 2024 and held it in 6 quarters.
  • Jane Street's T-Rex 2X Long MSTR Daily Target ETF position peaked at $90.5M in Q4 2024.
  • 39 funds tracked by Wall St. Rank held T-Rex 2X Long MSTR Daily Target ETF as of Q2 2026.

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