4 institutions reported holding $605,733 of PROSHARES TR (BIS) in SEC 13F filings for 2026-03-31. Largest institutional holders: SUSQUEHANNA INTERNATIONAL GROUP, LLP ($582,312), Tower Research Capital LLC (TRC) ($23,391), MORGAN STANLEY ($21), UBS Group AG ($9). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $582,312 | 65,947 | Added |
| 2 | Tower Research Capital LLC (TRC) | $23,391 | 2,649 | Added |
| 3 | MORGAN STANLEY | $21 | 2 | Added |
| 4 | UBS Group AG | $9 | 1 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31