GROUP ONE TRADING LLC's ownership history for OPRA

GROUP ONE TRADING LLC currently holds 71.7K shares with a market value of $1.5M. It started holding OPRA on 2024-09-30. At its peak, it held 71.7K shares on 2025-09-30. Its highest holding value was $1.5M on 2025-09-30. At its lowest, it held 7.4K shares on 2025-06-30, with a value of $140.6K on 2025-06-30. In the recent 180 days, GROUP ONE TRADING LLC has increased its shares by 51.2K.