MKS Instruments (MKSI) Stock Chart & Stock Price History $90.21 -1.24 (-1.36%) Closing price 04:00 PM EasternExtended Trading$89.87 -0.34 (-0.38%) As of 07:47 PM Eastern Extended trading is trading that happens on electronic markets outside of regular trading hours. This is a fair market value extended hours price provided by Polygon.io. Learn more. Add Compare Share Share Chart Stock AnalysisAnalyst ForecastsChartCompetitorsDividendEarningsFinancialsHeadlinesInsider TradesOptions ChainOwnershipSEC FilingsShort InterestSustainabilityTrendsBuy This Stock MKS Instruments Stock Price Performance 5 Day Performance-0.40%1 Month Performance-6.14%3 Month Performance-16.11%6 Month Performance-16.83%Year-To-Date Performance-13.58%1 Year Performance-28.19% Receive MKSI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for MKS Instruments and its competitors with MarketBeat's FREE daily newsletter. Email Address MKSI Stock Chart for Tuesday, March, 25, 2025 MKSI Chart by TradingViewRemove Ads MKS Instruments Stock Price History Daily Weekly Monthly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year Time Frame * Start Date * End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization03/25/2025$91.45$90.21-1.36%$92.00$89.70524,523 shs$6.08 billion03/24/2025$88.17$91.45+3.72%$92.82$90.361.19 million shs$6.16 billion03/21/2025$90.57$88.17-2.65%$89.54$87.081.54 million shs$5.94 billion03/20/2025$91.54$90.57-1.06%$92.22$89.551.32 million shs$6.10 billion03/19/2025$87.76$91.54+4.31%$93.31$87.661.93 million shs$6.17 billion03/18/2025$88.91$87.76-1.29%$88.76$86.91992,880 shs$5.91 billion03/17/2025$86.32$88.91+3.00%$90.14$85.741.24 million shs$5.99 billion03/14/2025$81.24$86.32+6.25%$86.49$82.591.91 million shs$5.82 billion03/13/2025$81.02$81.24+0.27%$82.14$79.101.48 million shs$5.47 billion03/12/2025$78.89$81.02+2.70%$82.27$79.291.15 million shs$5.46 billion Get the Latest News and Ratings for MKSI and Related StocksEnter your email address below to receive the latest news and analysts' ratings for MKS Instruments and its competitors with MarketBeat's FREE daily newsletter. 03/11/2025$78.95$78.89-0.08%$80.52$76.371.41 million shs$5.32 billion03/10/2025$84.89$78.95-7.00%$83.38$77.901.49 million shs$5.32 billion03/07/2025$82.52$84.89+2.87%$85.16$80.361.19 million shs$5.72 billion03/06/2025$86.06$82.52-4.11%$84.87$82.081.61 million shs$5.56 billion03/05/2025$85.53$86.06+0.62%$86.63$82.711.38 million shs$5.80 billion03/04/2025$85.63$85.53-0.12%$87.80$82.112.06 million shs$5.76 billion03/03/2025$91.82$85.63-6.74%$92.79$84.971.29 million shs$5.77 billion02/28/2025$91.17$91.82+0.71%$94.66$90.071.60 million shs$6.18 billion02/27/2025$97.24$91.17-6.24%$98.51$91.071.45 million shs$6.14 billion02/26/2025$96.11$97.24+1.17%$98.86$96.40760,864 shs$6.54 billion02/25/2025$99.90$96.11-3.79%$100.37$95.621.43 million shs$6.47 billion02/24/2025$103.09$99.90-3.09%$103.50$99.811.08 million shs$6.72 billion Related Companies ENTG Stock Price Chart ONTO Stock Price Chart AMKR Stock Price Chart AEIS Stock Price Chart FORM Stock Price Chart ACLS Stock Price Chart PLAB Stock Price Chart VECO Stock Price Chart UCTT Stock Price Chart PDFS Stock Price Chart Receive MKSI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for MKS Instruments and its competitors with MarketBeat's FREE daily newsletter. 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