19 institutions reported holding $784.7M of SOFI TECHNOLOGIES INC (SOFIW) in SEC 13F filings for 2026-03-31. Largest institutional holders: IMC-Chicago, LLC ($212.9M), SIMPLEX TRADING, LLC ($184.2M), Optiver Holding B.V. ($163.6M), GROUP ONE TRADING LLC ($97.0M), TENOR CAPITAL MANAGEMENT Co., L.P. ($31.0M). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | IMC-Chicago, LLC | $212.9M | 13.4M | Trimmed |
| 2 | SIMPLEX TRADING, LLC | $184.2M | 11.6M | Added |
| 3 | Optiver Holding B.V. | $163.6M | 10.3M | New |
| 4 | GROUP ONE TRADING LLC | $97.0M | 6.1M | Trimmed |
| 5 | TENOR CAPITAL MANAGEMENT Co., L.P. | $31.0M | 17.0M | New |
| 6 | HRT FINANCIAL LP | $26.1M | 1.6M | Added |
| 7 | ARISTEIA CAPITAL, L.L.C. | $22.6M | 22.0M | Added |
| 8 | JPMORGAN CHASE & CO | $22.0M | 1.5M | Added |
| 9 | Capital Markets Trading UK LLP | $11.4M | 718,800 | Trimmed |
| 10 | ADVENT CAPITAL MANAGEMENT /DE/ | $9.2M | 8.9M | Added |
| 11 | CMT Capital Markets Trading GmbH | $2.2M | 135,500 | Trimmed |
| 12 | Altshuler Shaham Ltd | $1.7M | 280,000 | New |
| 13 | SUMMIT SECURITIES GROUP LLC | $314,424 | 19,800 | New |
| 14 | SG Americas Securities, LLC | $286,000 | 680,600 | New |
| 15 | Marathon Trading Investment Management LLC | $195,324 | 12,300 | Trimmed |
| 16 | OSAIC HOLDINGS, INC. | $69,432 | 3,930 | New |
| 17 | Maven Securities LTD | $0 | 0 | Exited |
| 18 | Orion Capital Management LLC | $0 | 0 | Exited |
| 19 | Persistent Asset Partners Ltd | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-03-31