22 institutions reported holding $8.5M of ALPS ETF TR (RDOG) in SEC 13F filings for 2026-03-31. Largest institutional holders: SIMPLEX TRADING, LLC ($2.9M), IMC-Chicago, LLC ($2.7M), CITADEL ADVISORS LLC ($595,038), JANE STREET GROUP, LLC ($546,094), GROUP ONE TRADING LLC ($473,760). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $2.9M | 55,800 | Added |
| 2 | IMC-Chicago, LLC | $2.7M | 52,200 | Trimmed |
| 3 | CITADEL ADVISORS LLC | $595,038 | 16,724 | Trimmed |
| 4 | JANE STREET GROUP, LLC | $546,094 | 23,437 | New |
| 5 | GROUP ONE TRADING LLC | $473,760 | 9,000 | Trimmed |
| 6 | COMMONWEALTH EQUITY SERVICES, LLC | $429,480 | 12,071 | Added |
| 7 | GTS SECURITIES LLC | $286,613 | 12,301 | New |
| 8 | Accent Capital Management, LLC | $224,738 | 1,171 | Hold |
| 9 | Cranbrook Wealth Management, LLC | $102,420 | 3,762 | Hold |
| 10 | OSAIC HOLDINGS, INC. | $33,403 | 938 | Trimmed |
| 11 | Rossby Financial, LCC | $29,004 | 816 | Added |
| 12 | Capital Analysts, LLC | $23,000 | 967 | New |
| 13 | MORGAN STANLEY | $19,855 | 558 | Added |
| 14 | Medallion Wealth Advisors, LLC | $1,753 | 49 | Hold |
| 15 | LuminArx Capital Management LP | $1,550 | 2,000 | New |
| 16 | UBS Group AG | $676 | 19 | Added |
| 17 | WELLS FARGO & COMPANY/MN | $30 | 1 | New |
| 18 | Aptus Capital Advisors, LLC | $0 | 0 | Exited |
| 19 | SUSQUEHANNA INTERNATIONAL GROUP, LLP | $0 | 0 | Exited |
| 20 | NewEdge Advisors, LLC | $0 | 0 | Exited |
| 21 | Arax Advisory Partners | $0 | 0 | Exited |
| 22 | IFP Advisors, Inc | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31