T-Rex 2X Inverse MSTR DT ETFMSTZETF
13F holders, Q3 2025 (September 30)21holders +3
7new positions
4sold out
1famous investor
$5.26avg. 13F price*
At the end of Q3 2025, 21 institutions reported holding T-Rex 2X Inverse MSTR DT ETF (MSTZ) in their 13F filings, up 3 from Q2 2025. 7 opened new positions and 4 sold out. The largest holders were Susquehanna International Group, LLP ($6.2M), Optiver Holding B.V. ($2.1M) and Citadel Advisors ($1.6M). 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 (Q3 2025)
- CUSIP
- 26923N413
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q2 2025 → Q3 2025
| Institutions | Total Value | |
|---|---|---|
| New Positions | 7 | $9.5M |
| Exits | 4 | $472K |
All 13F filers, Q2 2025 → Q3 2025: 2,495,891 shares bought and 260,228 shares sold, net +2,235,663 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 21 holders
| Susquehanna International Group, LLP | 0.01% | New | 1,187,903 | $6.2M |
| Optiver Holding B.V. | 0.03% | Add +2547.1% | 405,620 | $2.1M |
| Citadel Advisors | 0.00% | Add +59.3% | 298,736 | $1.6M |
| Revere Asset Management, Inc | 0.48% | New | 243,030 | $1.3M |
| UBS Group AG | 0.00% | New | 155,408 | $817K |
| StoneX Group Inc. | 0.03% | Add +118.1% | 110,848 | $583K |
| Jane Street Group, LLC | 0.00% | New | 96,745 | $509K |
| Two Sigma Securities, LLC | 0.07% | Add +53.1% | 93,441 | $492K |
| Flow Traders U.S. LLC | 0.02% | New | 86,254 | $454K |
| Jump Financial, LLC | 0.00% | Add +515.0% | 65,811 | $346K |
| Hunting Hill Global Capital, LLC | 0.10% | No change | 48,674 | $256K |
| Belvedere Trading LLC | 0.02% | Add +79.1% | 44,860 | $236K |
| XTX Topco Ltd | 0.01% | New | 32,711 | $172K |
| SBI Securities Co., Ltd. | 0.00% | Add +844.5% | 25,937 | $136K |
| HRT Financial LP | 0.00% | Reduce -57.2% | 24,258 | $127K |
| Simplex Trading, LLC | 0.00% | Reduce -90.3% | 10,213 | $53K |
| Geneos Wealth Management Inc. | 0.00% | Reduce -58.4% | 7,407 | $39K |
| Federation des caisses Desjardins du Quebec | 0.00% | Add +66.7% | 2,500 | $13K |
| Advisory Services Network, LLC | 0.00% | New | 790 | $4K |
| Tower Research Capital LLC (TRC) | 0.00% | Reduce -95.0% | 500 | $3K |
| Elequin Capital, LP | 0.00% | No change | 368 | $2K |
"% 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.