11 institutions reported holding $489,471 of PROSHARES TR (REK) in SEC 13F filings for 2026-03-31. Largest institutional holders: IMC-Chicago, LLC ($323,551), RAMSEY QUANTITATIVE SYSTEMS ($141,850), Merkkuri Wealth Advisors LLC ($8,591), Advisory Services Network, LLC ($5,945), Purpose Unlimited Inc. ($5,295). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $323,551 | 19,048 | Added |
| 2 | RAMSEY QUANTITATIVE SYSTEMS | $141,850 | 2,500 | New |
| 3 | Merkkuri Wealth Advisors LLC | $8,591 | 506 | New |
| 4 | Advisory Services Network, LLC | $5,945 | 350 | New |
| 5 | Purpose Unlimited Inc. | $5,295 | 312 | Hold |
| 6 | Sound Income Strategies, LLC | $4,147 | 245 | Hold |
| 7 | MORGAN STANLEY | $58 | 3 | Added |
| 8 | UBS Group AG | $17 | 1 | Hold |
| 9 | HUNTINGTON NATIONAL BANK | $17 | 1 | Hold |
| 10 | TCTC Holdings, LLC | $0 | 0 | Exited |
| 11 | SIMPLEX TRADING, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31