CITADEL ADVISORS LLC's ownership history for MKSI

CITADEL ADVISORS LLC currently holds 457.9K shares with a market value of $73.2M. It started holding MKSI on 2024-09-30. At its peak, it held 457.9K shares on 2025-12-31. Its highest holding value was $73.2M on 2025-12-31. At its lowest, it held 37.1K shares on 2024-12-31, with a value of $3.9M on 2024-12-31. In the recent 180 days, CITADEL ADVISORS LLC has increased its shares by 311.8K. In the recent year, CITADEL ADVISORS LLC has increased its shares by 356.3K.

It has also owned 448 contracts of calls, with the market value of the underlying securities totaling $7.2M on 2024-09-30. At its peak, it held 929 contracts of calls on 2025-03-31 and it owned calls with the market value of the underlying securities totaling $7.4M on 2025-03-31. At its lowest, it held 264 contracts of calls on 2024-12-31 and it owned calls with the market value of the underlying securities totaling $2.8M on 2024-12-31. In the recent 180 days, CITADEL ADVISORS LLC has increased its holdings by 50 contracts. In the recent year, CITADEL ADVISORS LLC has increased its holdings by 184 contracts.

It has also owned 438 contracts of puts, with the market value of the underlying securities totaling $7.0M on 2024-09-30. At its peak, it held 438 contracts of puts on 2025-12-31 and it owned puts with the market value of the underlying securities totaling $7.0M on 2025-12-31. At its lowest, it held 115 contracts of puts on 2024-09-30 and it owned puts with the market value of the underlying securities totaling $1.3M on 2024-09-30. In the recent 180 days, CITADEL ADVISORS LLC has increased its holdings by 102 contracts. In the recent year, CITADEL ADVISORS LLC has increased its holdings by 457.7K contracts.