4 institutions reported holding $5.9M of CORGI ETF TR I (YUNG) in SEC 13F filings for 2026-06-30. Largest institutional holders: GROUP ONE TRADING LLC ($3.2M), IMC-Chicago, LLC ($1.3M), SIMPLEX TRADING, LLC ($952,680), GTS SECURITIES LLC ($449,273). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | GROUP ONE TRADING LLC | $3.2M | 99,800 | New |
| 2 | IMC-Chicago, LLC | $1.3M | 39,900 | New |
| 3 | SIMPLEX TRADING, LLC | $952,680 | 30,500 | New |
| 4 | GTS SECURITIES LLC | $449,273 | 15,520 | New |
来源：SEC 13F 申报文件 · 截至 2026-06-30