Parallax Volatility Advisers, L.P.'s ownership history for RIO

Parallax Volatility Advisers, L.P. currently holds 23.7K shares with a market value of $2.3M. It started holding RIO on 2025-06-30. At its peak, it held 23.7K shares on 2026-03-31. Its highest holding value was $2.3M on 2026-03-31. At its lowest, it held 2.3K shares on 2025-06-30, with a value of $137.0K on 2025-06-30. In the recent 180 days, Parallax Volatility Advisers, L.P. has increased its shares by 21.3K.

It has also owned 1.6K contracts of calls, with the market value of the underlying securities totaling $15.3M on 2024-09-30. At its peak, it held 2.6K contracts of calls on 2024-12-31 and it owned calls with the market value of the underlying securities totaling $19.4M on 2025-12-31. At its lowest, it held 599 contracts of calls on 2025-03-31 and it owned calls with the market value of the underlying securities totaling $3.6M on 2025-03-31. In the recent 180 days, Parallax Volatility Advisers, L.P. has decreased its holdings by 134 contracts. In the recent year, Parallax Volatility Advisers, L.P. has increased its holdings by 962 contracts.

It has also owned 8 contracts of puts, with the market value of the underlying securities totaling $78.2K on 2024-09-30. At its peak, it held 261 contracts of puts on 2025-12-31 and it owned puts with the market value of the underlying securities totaling $2.1M on 2025-12-31. At its lowest, it held 8 contracts of puts on 2026-03-31 and it owned puts with the market value of the underlying securities totaling $66.0K on 2025-09-30. In the recent 180 days, Parallax Volatility Advisers, L.P. has decreased its holdings by 2 contracts. In the recent year, Parallax Volatility Advisers, L.P. has increased its holdings by 23.5K contracts.