GROUP ONE TRADING LLC's ownership history for MBI

GROUP ONE TRADING LLC currently holds 198.2K shares with a market value of $1.5M. It started holding MBI on 2024-12-31. At its peak, it held 198.2K shares on 2025-09-30. Its highest holding value was $1.5M on 2025-09-30. At its lowest, it held 160.8K shares on 2025-06-30, with a value of $697.9K on 2025-06-30. In the recent 180 days, GROUP ONE TRADING LLC has increased its shares by 25.9K.