17 institutions reported holding $22.2M of PROSHARES TR (SBIT) in SEC 13F filings for 2026-03-31. Largest institutional holders: CITADEL ADVISORS LLC ($8.1M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($6.7M), JANE STREET GROUP, LLC ($3.4M), Belvedere Trading LLC ($867,368), GROUP ONE TRADING LLC ($623,252). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $8.1M | 142,934 | Trimmed |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $6.7M | 117,564 | Added |
| 3 | JANE STREET GROUP, LLC | $3.4M | 59,000 | Trimmed |
| 4 | Belvedere Trading LLC | $867,368 | 15,225 | Trimmed |
| 5 | GROUP ONE TRADING LLC | $623,252 | 10,940 | Added |
| 6 | Revere Asset Management, Inc | $614,763 | 10,791 | New |
| 7 | SIMPLEX TRADING, LLC | $481,111 | 8,445 | Trimmed |
| 8 | StoneX Group Inc. | $461,115 | 8,094 | Added |
| 9 | FLOW TRADERS U.S. LLC | $344,000 | 6,043 | Trimmed |
| 10 | HRT FINANCIAL LP | $322,000 | 5,654 | New |
| 11 | IMC-Chicago, LLC | $225,145 | 3,952 | Trimmed |
| 12 | Tower Research Capital LLC (TRC) | $48,197 | 846 | Added |
| 13 | UBS Group AG | $16,977 | 298 | Hold |
| 14 | Jump Financial, LLC | $0 | 0 | Exited |
| 15 | Canton Hathaway, LLC | $0 | 0 | Exited |
| 16 | XTX Topco Ltd | $0 | 0 | Exited |
| 17 | Client First Investment Management LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31