MKS

MKSI experienced a sharp reversal today, surging to an intraday high of $425.00 in pre-market trading before plunging during regular hours to a low of $377.81 and closing at $379.07, down 7.79% from the prior close of $411.05. The sell-off erased gains fueled by recent capacity expansion announcements including the Guangzhou facility expansion and Malaysia supercenter factory opening, despite strong Q1 2026 results with revenue up 15.17% YoY and net profit surging 61.54%. Insider selling of approximately $1.21 million by the EVP & COO, combined with a mean 12-month price target of $369.92 from analysts implying further downside, triggered profit-taking. Currently trading at $379.07 between its MA20 ($372.12) and 52-week high ($447.62), the stock still boasts a YTD gain of 125.15% though heavy selling pressure has emerged at elevated levels.