5 institutions reported holding $9.8M of VANGUARD ADMIRAL FDS INC (VUSXX) in SEC 13F filings for 2026-06-30. Largest institutional holders: IMC-Chicago, LLC ($5.8M), SIMPLEX TRADING, LLC ($3.5M), Novak & Powell Financial Services, Inc. ($400,675), Grey Fox Wealth Advisors, LLC ($33,553), GROUP ONE TRADING LLC ($16,524). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $5.8M | 70,400 | Added |
| 2 | SIMPLEX TRADING, LLC | $3.5M | 40,800 | Added |
| 3 | Novak & Powell Financial Services, Inc. | $400,675 | 4,973 | New |
| 4 | Grey Fox Wealth Advisors, LLC | $33,553 | 33,553 | Added |
| 5 | GROUP ONE TRADING LLC | $16,524 | 200 | New |
Source: SEC Form 13F filings · as of 2026-06-30