6 institutions reported holding $36.2M of AGNC INVT CORP (AGNCP1) in SEC 13F filings for 2026-03-31. Largest institutional holders: SIMPLEX TRADING, LLC ($16.7M), GROUP ONE TRADING LLC ($12.1M), IMC-Chicago, LLC ($7.3M), SG Americas Securities, LLC ($89,000), Persistent Asset Partners Ltd ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $16.7M | 1.7M | Added |
| 2 | GROUP ONE TRADING LLC | $12.1M | 1.2M | Added |
| 3 | IMC-Chicago, LLC | $7.3M | 730,400 | Added |
| 4 | SG Americas Securities, LLC | $89,000 | 60,000 | New |
| 5 | Persistent Asset Partners Ltd | $0 | 0 | Exited |
| 6 | HRT FINANCIAL LP | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31