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

Parallax Volatility Advisers, L.P. currently holds 2 shares with a market value of $894. It started holding ISRG on 2024-09-30. At its peak, it held 30.4K shares on 2024-09-30. Its highest holding value was $14.9M on 2024-09-30. At its lowest, it held 2 shares on 2025-09-30, with a value of $894 on 2025-09-30. In the recent 180 days, Parallax Volatility Advisers, L.P. has decreased its shares by 6.6K.

It has also owned 561 contracts of calls, with the market value of the underlying securities totaling $30.5M on 2024-09-30. At its peak, it held 561 contracts of calls on 2025-06-30 and it owned calls with the market value of the underlying securities totaling $30.5M on 2025-06-30. At its lowest, it held 13 contracts of calls on 2024-12-31 and it owned calls with the market value of the underlying securities totaling $678.5K on 2024-12-31. In the recent 180 days, Parallax Volatility Advisers, L.P. has increased its holdings by 548 contracts.

It has also owned 268 contracts of puts, with the market value of the underlying securities totaling $12.0M on 2024-09-30. At its peak, it held 1.8K contracts of puts on 2024-09-30 and it owned puts with the market value of the underlying securities totaling $88.7M on 2024-09-30. At its lowest, it held 268 contracts of puts on 2025-09-30 and it owned puts with the market value of the underlying securities totaling $12.0M on 2025-09-30. In the recent 180 days, Parallax Volatility Advisers, L.P. has decreased its holdings by 118 contracts. In the recent year, Parallax Volatility Advisers, L.P. has decreased its holdings by 1.8K contracts.