GROUP ONE TRADING LLC's ownership history for SPHR

GROUP ONE TRADING LLC currently holds 129.3K shares with a market value of $8.0M. It started holding SPHR on 2024-09-30. At its peak, it held 129.3K shares on 2025-09-30. Its highest holding value was $8.0M on 2025-09-30. At its lowest, it held 35.9K shares on 2025-06-30, with a value of $1.5M on 2025-06-30. In the recent 180 days, GROUP ONE TRADING LLC has increased its shares by 70.4K. In the recent year, GROUP ONE TRADING LLC has increased its shares by 66.4K.