T-Rex 2X Inverse MSTR Daily Target ETF
MSTZ
15 hedge funds and large institutions have $8.71M invested in T-Rex 2X Inverse MSTR Daily Target ETF in 2025 Q4 according to their latest regulatory filings, with 5 funds opening new positions, 1 increasing their positions, 8 reducing their positions, and 11 closing their positions.
7% less call options, than puts
Call options by funds: $9.36M | Put options by funds: $10.1M
5.95% less ownership
Funds ownership: 14.21% → 8.26% (-6%)
29% less funds holding
Funds holding: 21 → 15 (-6)
44% less capital invested
Capital invested by funds: $15.5M → $8.71M (-$6.76M)
55% less first-time investments, than exits
New positions opened: 5 | Existing positions closed: 11
88% less repeat investments, than reductions
Existing positions increased: 1 | Existing positions reduced: 8
Top Buyers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
IMC Chicago
Chicago,
Illinois
|
+$231K |
| 2 |
SRL
Scientech Research LLC
Jersey City,
New Jersey
|
+$224K |
| 3 |
HT
Headlands Technologies
Chicago,
Illinois
|
+$121K |
| 4 |
Citigroup
New York
|
+$85.6K |
| 5 |
TRCT
Tower Research Capital (TRC)
New York
|
+$53.8K |
Top Sellers
| Rank | Fund | Capital Flow |
|---|---|---|
| 1 |
Susquehanna International Group
Bala Cynwyd,
Pennsylvania
|
-$9.95M |
| 2 |
Optiver Holding
Amsterdam,
Netherlands
|
-$3.9M |
| 3 |
Citadel Advisors
Miami,
Florida
|
-$2.9M |
| 4 |
UBS Group
Zurich,
Switzerland
|
-$1.57M |
| 5 |
RAM
Revere Asset Management
Dallas,
Texas
|
-$1.28M |
MSTZ Hedge Fund Activity: Q4 2025 in Review
15 of the 8,235 institutional investors tracked by Wall St. Rank reported a position in T-Rex 2X Inverse MSTR Daily Target ETF (MSTZ) for Q4 2025, worth a combined $8.71M — down 44% from $15.5M a quarter earlier.
Sellers outnumbered buyers: 11 funds closed out of MSTZ and 5 opened new positions — a net loss of 6 holders — while 8 trimmed existing stakes and 1 added.
The largest buyer was IMC Chicago, opening a new position worth an estimated $231K. The largest seller was Susquehanna International Group, cutting an estimated $9.95M.
- 15 institutional investors held T-Rex 2X Inverse MSTR Daily Target ETF (MSTZ) as of Q4 2025, down from 21 in Q3 2025.
- Funds reported $8.71M of T-Rex 2X Inverse MSTR Daily Target ETF stock for Q4 2025, down 44% quarter-over-quarter.
- 5 funds opened new T-Rex 2X Inverse MSTR Daily Target ETF positions in Q4 2025 and 11 closed out, a net change of -6 holders.
- The largest T-Rex 2X Inverse MSTR Daily Target ETF buyer in Q4 2025 was IMC Chicago, an estimated $231K added.
- The largest T-Rex 2X Inverse MSTR Daily Target ETF seller in Q4 2025 was Susquehanna International Group, an estimated $9.95M sold.
Based on aggregated 13F filings for Q4 2025.