GROUP ONE TRADING LLC's ownership history for SERV

GROUP ONE TRADING LLC currently holds 256.2K shares with a market value of $3.0M. It started holding SERV on 2024-09-30. At its peak, it held 256.2K shares on 2025-09-30. Its highest holding value was $3.0M on 2025-09-30. At its lowest, it held 13.5K shares on 2024-12-31, with a value of $182.2K on 2024-12-31. In the recent 180 days, GROUP ONE TRADING LLC has increased its shares by 218.9K. In the recent year, GROUP ONE TRADING LLC has increased its shares by 208.6K.