T-Rex 2X Inverse MSTR DT ETFMSTZETF
13F holders, Q4 2025 (December 31)15holders −6
5new positions
11sold out
1famous investor
$17.15avg. 13F price*
At the end of Q4 2025, 15 institutions reported holding T-Rex 2X Inverse MSTR DT ETF (MSTZ) in their 13F filings, down 6 from Q3 2025. 5 opened new positions and 11 sold out. The largest holders were Susquehanna International Group, LLP ($3.6M), Jane Street Group, LLC ($1.6M) and StoneX Group Inc. ($737K). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- T-Rex 2X Inverse MSTR DT ETF
- Filed as
- ETF OPPORTUNITIES TRUST (Q4 2025)
- CUSIP
- 26923N413
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q3 2025 → Q4 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 5 | $1.1M |
| Exits | 11 | $3.1M |
All 13F filers, Q3 2025 → Q4 2025: 70,367 shares bought and 2,504,516 shares sold, net −2,434,149 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 15 holders
| Susquehanna International Group, LLP | 0.00% | Reduce -82.4% | 209,315 | $3.6M |
| Jane Street Group, LLC | 0.00% | Reduce -3.2% | 93,628 | $1.6M |
| StoneX Group Inc. | 0.03% | Reduce -61.2% | 42,963 | $737K |
| Jump Financial, LLC | 0.01% | Reduce -41.4% | 38,592 | $662K |
| IMC-Chicago, LLC | 0.01% | New | 22,740 | $390K |
| Scientech Research LLC | 0.24% | New | 22,032 | $378K |
| Optiver Holding B.V. | 0.01% | Reduce -94.7% | 21,582 | $370K |
| SBI Securities Co., Ltd. | 0.01% | Reduce -35.7% | 16,668 | $286K |
| Citadel Advisors | 0.00% | Reduce -95.5% | 13,364 | $229K |
| Headlands Technologies LLC | 0.02% | New | 11,874 | $204K |
| Citigroup Inc. | 0.00% | New | 8,422 | $144K |
| Tower Research Capital LLC (TRC) | 0.00% | Add +1058.8% | 5,794 | $99K |
| UBS Group AG | 0.00% | Reduce -99.7% | 518 | $9K |
| Elequin Capital, LP | 0.00% | No change | 368 | $6K |
| Hollencrest Capital Management | 0.00% | New | 5 | $86 |
"% of holder's portfolio" is MSTZ's weight in each manager's 13F, not the share of T-Rex 2X Inverse MSTR DT ETF the manager owns.