7 institutions reported holding $9.3M of PROSHARES TR II (YCS) in SEC 13F filings for 2026-06-30. Largest institutional holders: THOR TRADING ADVISORS, LLC ($3.8M), CITADEL ADVISORS LLC ($3.4M), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($1.7M), JANE STREET GROUP, LLC ($276,022), NKCFO LLC ($61,000). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | THOR TRADING ADVISORS, LLC | $3.8M | 67,392 | New |
| 2 | CITADEL ADVISORS LLC | $3.4M | 60,574 | Trimmed |
| 3 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $1.7M | 30,717 | Added |
| 4 | JANE STREET GROUP, LLC | $276,022 | 4,875 | Trimmed |
| 5 | NKCFO LLC | $61,000 | 1,075 | Trimmed |
| 6 | MORGAN STANLEY | $11,324 | 200 | Hold |
| 7 | OSAIC HOLDINGS, INC. | $57 | 1 | Hold |
Source: SEC Form 13F filings · as of 2026-06-30