GROUP ONE TRADING LLC's ownership history for OPEN

GROUP ONE TRADING LLC currently holds 1.5M shares with a market value of $11.7M. It started holding OPEN on 2024-09-30. At its peak, it held 2.9M shares on 2024-09-30. Its highest holding value was $11.7M on 2025-09-30. At its lowest, it held 637.9K shares on 2025-03-31, with a value of $650.6K on 2025-03-31. In the recent 180 days, GROUP ONE TRADING LLC has increased its shares by 832.3K. In the recent year, GROUP ONE TRADING LLC has decreased its shares by 1.5M.