Graniteshares 2X Long Mu ETFMULLETF
13F holders, Q1 2026 (March 31)14holders +6
7new positions
1sold out
1famous investor
$106.36avg. 13F price*
At the end of Q1 2026, 14 institutions reported holding Graniteshares 2X Long Mu ETF (MULL) in their 13F filings, up 6 from Q4 2025. 7 opened new positions and 1 sold out. The largest holders were Citadel Advisors ($6.1M), Simplex Trading, LLC ($1.1M) and Optiver Holding B.V. ($1.1M). One famous investor held it Ken Griffin (0.0% of Citadel Advisors's portfolio).
- Company
- Graniteshares 2X Long Mu ETF
- CUSIP
- 38747R678
- Latest filing quarter
- Q2 2026
History
Number of 13F holders
Total Exit/New Position Q4 2025 → Q1 2026
| Institutions | Total Value | |
|---|---|---|
| New Positions | 7 | $4.3M |
| Exits | 1 | $1.9M |
All 13F filers, Q4 2025 → Q1 2026: 96,973 shares bought and 27,576 shares sold, net +69,397 shares. Counts holders who added, trimmed, opened or closed a position; split-adjusted.
Ownership 14 holders
| Citadel Advisors | 0.00% | Add +350.9% | 56,988 | $6.1M |
| Simplex Trading, LLC | 0.04% | New | 10,747 | $1.1M |
| Optiver Holding B.V. | 0.04% | Add +1046.4% | 10,719 | $1.1M |
| Barclays PLC | 0.00% | New | 10,060 | $1.1M |
| Mirae Asset Securities (usa) Inc. | 0.05% | New | 10,000 | $1.1M |
| Jane Street Group, LLC | 0.00% | New | 3,895 | $414K |
| SBI Securities Co., Ltd. | 0.01% | Add +748.0% | 3,019 | $321K |
| Jump Financial, LLC | 0.00% | New | 2,590 | $275K |
| Csenge Advisory Group | 0.01% | New | 2,500 | $266K |
| Belvedere Trading LLC | 0.01% | Reduce -87.8% | 752 | $80K |
| Group One Trading LLC | 0.00% | New | 386 | $41K |
| UBS Group AG | 0.00% | Reduce -48.9% | 120 | $13K |
| Hollencrest Capital Management | 0.00% | Reduce -89.8% | 102 | $11K |
| Morgan Stanley | 0.00% | Reduce -40.0% | 3 | $319 |
"% of holder's portfolio" is MULL's weight in each manager's 13F, not the share of Graniteshares 2X Long Mu ETF the manager owns.