12 institutions reported holding $741,159 of PROSHARES TR (REK) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($301,956), StoneX Group Inc. ($247,381), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($191,739), MORGAN STANLEY ($35), CONTRAVISORY INVESTMENT MANAGEMENT, INC. ($16). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $301,956 | 19,320 | Added |
| 2 | StoneX Group Inc. | $247,381 | 15,727 | New |
| 3 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $191,739 | 12,268 | New |
| 4 | MORGAN STANLEY | $35 | 2 | Trimmed |
| 5 | CONTRAVISORY INVESTMENT MANAGEMENT, INC. | $16 | 1 | New |
| 6 | HUNTINGTON NATIONAL BANK | $16 | 0 | Hold |
| 7 | UBS Group AG | $16 | 1 | Hold |
| 8 | RAMSEY QUANTITATIVE SYSTEMS | $0 | 0 | Exited |
| 9 | Advisory Services Network, LLC | $0 | 0 | Exited |
| 10 | Sound Income Strategies, LLC | $0 | 0 | Exited |
| 11 | Merkkuri Wealth Advisors LLC | $0 | 0 | Exited |
| 12 | Purpose Unlimited Inc. | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30