7 institutions reported holding $1.9M of PROSHARES BIG DATA REFINERS ETF (DAT) in SEC 13F filings for 2026-03-31. Largest institutional holders: FLOW TRADERS U.S. LLC ($1.1M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($796,637), OSAIC HOLDINGS, INC. ($16,723), Farther Finance Advisors, LLC ($16,694), HARBOUR INVESTMENTS, INC. ($3,481). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | FLOW TRADERS U.S. LLC | $1.1M | 30,784 | Added |
| 2 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $796,637 | 23,342 | Added |
| 3 | OSAIC HOLDINGS, INC. | $16,723 | 490 | Added |
| 4 | Farther Finance Advisors, LLC | $16,694 | 488 | Hold |
| 5 | HARBOUR INVESTMENTS, INC. | $3,481 | 102 | Hold |
| 6 | UBS Group AG | $512 | 15 | New |
| 7 | JANE STREET GROUP, LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31