18 institutions reported holding $23.1M of PROSHARES TR (TWM) in SEC 13F filings for 2026-03-31. Largest institutional holders: Trek Financial, LLC ($10.2M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($3.0M), Hillsdale Investment Management Inc. ($2.5M), CITADEL ADVISORS LLC ($1.7M), GTS SECURITIES LLC ($1.3M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | Trek Financial, LLC | $10.2M | 329,558 | New |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $3.0M | 95,276 | Added |
| 3 | Hillsdale Investment Management Inc. | $2.5M | 79,302 | Added |
| 4 | CITADEL ADVISORS LLC | $1.7M | 55,300 | Added |
| 5 | GTS SECURITIES LLC | $1.3M | 40,578 | New |
| 6 | JANE STREET GROUP, LLC | $1.2M | 40,098 | Added |
| 7 | IMC-Chicago, LLC | $985,527 | 31,822 | Trimmed |
| 8 | Tower Research Capital LLC (TRC) | $855,856 | 27,635 | Trimmed |
| 9 | Cambridge Investment Research Advisors, Inc. | $594,000 | 19,195 | New |
| 10 | TWO SIGMA SECURITIES, LLC | $348,970 | 11,268 | New |
| 11 | Squarepoint Ops LLC | $232,894 | 7,520 | New |
| 12 | FLOW TRADERS U.S. LLC | $220,000 | 7,109 | Trimmed |
| 13 | Qube Research & Technologies Ltd | $23,568 | 761 | Added |
| 14 | GROUP ONE TRADING LLC | $18,582 | 600 | New |
| 15 | Sterling Capital Management LLC | $2,756 | 89 | Hold |
| 16 | AE Wealth Management LLC | $1,920 | 62 | Trimmed |
| 17 | BNP PARIBAS FINANCIAL MARKETS | $465 | 15 | New |
| 18 | MORGAN STANLEY | $68 | 2 | Added |
Source: SEC Form 13F filings · as of 2026-03-31