GROUP ONE TRADING LLC's ownership history for PFE

GROUP ONE TRADING LLC currently holds 592.2K shares with a market value of $16.6M. It started holding PFE on 2024-09-30. At its peak, it held 592.2K shares on 2026-03-31. Its highest holding value was $16.6M on 2026-03-31. At its lowest, it held 159.4K shares on 2025-12-31, with a value of $4.0M on 2025-12-31. In the recent 180 days, GROUP ONE TRADING LLC has increased its shares by 372.5K. In the recent year, GROUP ONE TRADING LLC has increased its shares by 202.3K.