Weekly Report: what happened at MKSI last week (1208-1212)?

Last week MKSI had an overall loss of -5.49%, the stock price moved from 164.82 to 155.77, last week's high was 170.37, the low was 153.1201, and the cumulative volume was 4.70M.

● MKSI reached a 52-week high last week on 12 December, quoting 155.77.