9 institutions reported holding $1.1M of GRANITESHARES ETF TR (MSTP) in SEC 13F filings for 2026-03-31. Largest institutional holders: Optiver Holding B.V. ($756,167), CITADEL ADVISORS LLC ($199,793), StoneX Group Inc. ($72,230), SBI Securities Co., Ltd. ($29,767), TWO SIGMA SECURITIES, LLC ($15,561). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Optiver Holding B.V. | $756,167 | 523,444 | Added |
| 2 | CITADEL ADVISORS LLC | $199,793 | 138,303 | New |
| 3 | StoneX Group Inc. | $72,230 | 50,000 | Added |
| 4 | SBI Securities Co., Ltd. | $29,767 | 20,606 | Added |
| 5 | TWO SIGMA SECURITIES, LLC | $15,561 | 10,772 | New |
| 6 | Ausdal Financial Partners, Inc. | $14,446 | 10,000 | New |
| 7 | Covestor Ltd | $3,000 | 2,014 | New |
| 8 | UBS Group AG | $0 | 0 | Exited |
| 9 | HOLLENCREST CAPITAL MANAGEMENT | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31