GROUP ONE TRADING LLC's ownership history for Z

GROUP ONE TRADING LLC currently holds 18.6K shares with a market value of $1.4M. It started holding Z on 2025-03-31. At its peak, it held 18.6K shares on 2025-09-30. Its highest holding value was $1.4M on 2025-09-30. At its lowest, it held 7.4K shares on 2025-06-30, with a value of $519.9K on 2025-06-30. In the recent 180 days, GROUP ONE TRADING LLC has increased its shares by 9.9K.