10 institutions reported holding $1.0M of ISHARES TR (ITDI) in SEC 13F filings for 2026-03-31. Largest institutional holders: CITADEL ADVISORS LLC ($381,454), Heck Capital Advisors, LLC ($352,614), SUSQUEHANNA INTERNATIONAL GROUP, LLP ($279,538), McIlrath & Eck, LLC ($21,290), Sunbelt Securities, Inc. ($9,640). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | CITADEL ADVISORS LLC | $381,454 | 10,304 | New |
| 2 | Heck Capital Advisors, LLC | $352,614 | 9,525 | Added |
| 3 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $279,538 | 7,551 | Trimmed |
| 4 | McIlrath & Eck, LLC | $21,290 | 575 | Added |
| 5 | Sunbelt Securities, Inc. | $9,640 | 260 | Trimmed |
| 6 | Financial Management Professionals, Inc. | $1,148 | 31 | Hold |
| 7 | VANGUARD ADVISERS INC | $111 | 3 | New |
| 8 | HARBOUR INVESTMENTS, INC. | $37 | 1 | New |
| 9 | Orion Porfolio Solutions, LLC | $0 | 0 | Exited |
| 10 | Roble, Belko & Company, Inc | $0 | 3 | Hold |
Source: SEC Form 13F filings · as of 2026-03-31