3 institutions reported holding $9,900 of OPAL FUELS INC (OPALW) in SEC 13F filings for 2026-06-30. Largest institutional holders: SIMPLEX TRADING, LLC ($9,900), IMC-Chicago, LLC ($0), GROUP ONE TRADING LLC ($0). Source: SEC Form 13F.
| Rank | Institution | Value | Shares | Change |
|---|---|---|---|---|
| 1 | SIMPLEX TRADING, LLC | $9,900 | 4,500 | Trimmed |
| 2 | IMC-Chicago, LLC | $0 | 0 | Exited |
| 3 | GROUP ONE TRADING LLC | $0 | 0 | Exited |
Source: SEC Form 13F filings · as of 2026-06-30