GROUP ONE TRADING LLC's ownership history for RIO

GROUP ONE TRADING LLC currently holds 61.7K shares with a market value of $4.9M. It started holding RIO on 2025-03-31. At its peak, it held 61.7K shares on 2025-12-31. Its highest holding value was $4.9M on 2025-12-31. At its lowest, it held 24.6K shares on 2025-09-30, with a value of $1.6M on 2025-09-30. In the recent 180 days, GROUP ONE TRADING LLC has increased its shares by 2.5K.