10 institutions reported holding $3.4M of PROSHARES TR (PST) in SEC 13F filings for 2026-06-30. Largest institutional holders: Royal Bank of Canada ($952,000), CITADEL ADVISORS LLC ($733,691), JANE STREET GROUP, LLC ($582,519), CUMBERLAND ADVISORS INC ($551,702), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($233,700). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Royal Bank of Canada | $952,000 | 41,829 | Added |
| 2 | CITADEL ADVISORS LLC | $733,691 | 32,236 | Trimmed |
| 3 | JANE STREET GROUP, LLC | $582,519 | 25,594 | Trimmed |
| 4 | CUMBERLAND ADVISORS INC | $551,702 | 24,240 | Hold |
| 5 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $233,700 | 10,268 | Trimmed |
| 6 | GTS SECURITIES LLC | $232,562 | 10,218 | New |
| 7 | SIMPLEX TRADING, LLC | $94,089 | 4,134 | Trimmed |
| 8 | GROUP ONE TRADING LLC | $2,276 | 100 | Hold |
| 9 | MORGAN STANLEY | $50 | 2 | Added |
| 10 | Main Street Group, LTD | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30