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

Parallax Volatility Advisers, L.P. currently holds 8.7K shares with a market value of $2.2M. It started holding UNP on 2024-09-30. At its peak, it held 8.7K shares on 2024-09-30. Its highest holding value was $2.2M on 2026-03-31. At its lowest, it held 1 shares on 2025-03-31, with a value of $236 on 2025-03-31. In the recent 180 days, Parallax Volatility Advisers, L.P. has increased its shares by 8.7K.

It has also owned 77 contracts of calls, with the market value of the underlying securities totaling $1.9M on 2024-09-30. At its peak, it held 2.7K contracts of calls on 2025-06-30 and it owned calls with the market value of the underlying securities totaling $61.5M on 2025-06-30. At its lowest, it held 77 contracts of calls on 2026-03-31 and it owned calls with the market value of the underlying securities totaling $1.9M on 2026-03-31. In the recent 180 days, Parallax Volatility Advisers, L.P. has decreased its holdings by 1.3K contracts. In the recent year, Parallax Volatility Advisers, L.P. has decreased its holdings by 834 contracts.

It has also owned 50 contracts of puts, with the market value of the underlying securities totaling $1.3M on 2024-09-30. At its peak, it held 350 contracts of puts on 2025-12-31 and it owned puts with the market value of the underlying securities totaling $8.1M on 2025-12-31. At its lowest, it held 38 contracts of puts on 2025-09-30 and it owned puts with the market value of the underlying securities totaling $898.2K on 2025-09-30. In the recent 180 days, Parallax Volatility Advisers, L.P. has increased its holdings by 12 contracts. In the recent year, Parallax Volatility Advisers, L.P. has increased its holdings by 8.6K contracts.