11 institutions reported holding $1.2M of GRANITESHARES ETF TR (UBRL) in SEC 13F filings for 2026-03-31. Largest institutional holders: Optiver Holding B.V. ($438,700), CITADEL ADVISORS LLC ($315,747), IMC-Chicago, LLC ($184,610), LAZARI CAPITAL MANAGEMENT, INC. ($177,509), Parallel Advisors, LLC ($62,835). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Optiver Holding B.V. | $438,700 | 27,927 | Added |
| 2 | CITADEL ADVISORS LLC | $315,747 | 20,100 | Trimmed |
| 3 | IMC-Chicago, LLC | $184,610 | 11,752 | New |
| 4 | LAZARI CAPITAL MANAGEMENT, INC. | $177,509 | 11,300 | New |
| 5 | Parallel Advisors, LLC | $62,835 | 4,000 | Added |
| 6 | GROUP ONE TRADING LLC | $16,651 | 1,060 | Trimmed |
| 7 | SIMPLEX TRADING, LLC | $5,058 | 322 | New |
| 8 | SBI Securities Co., Ltd. | $189 | 12 | Added |
| 9 | UBS Group AG | $0 | 0 | Exited |
| 10 | HOLLENCREST CAPITAL MANAGEMENT | $0 | 0 | Exited |
| 11 | Genesis Financial Group, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31