MKS (MKSI) Stock Chart & Stock Price History $99.31 +0.54 (+0.55%) Closing price 03:59 PM EasternExtended Trading$98.54 -0.77 (-0.77%) As of 04:10 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 Stock Price Performance The MKS (MKSI) stock chart highlights key performance trends across multiple timeframes. Over the last 12 months, the stock's price has decreased 9.69%, with a year-to-date return of -4.86%. In the past month, the stock has decreased 4.99%, reflecting recent market activity. As of the latest close, MKS traded at $98.77 with a market cap of $6.66 billion and volume of 2.06 million shares. Five years ago, the stock traded at $123.11, representing a 19.33% decrease over that period. At the time, it had a market cap of $6.95 billion and a volume of 423,902 shares. Receive MKSI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for MKS and its competitors with MarketBeat's FREE daily newsletter. Email Address 5 Day Performance+7.08%1 Month Performance-4.99%3 Month Performance+28.50%Year-To-Date Performance-4.86%1 Year Performance-9.69%5 Year Performance-19.33% MKSI Stock Chart for Friday, August, 8, 2025 MKSI Chart by TradingView MKS Stock Price History Daily Weekly Monthly Yearly Time Frame Custom Range 1 Month 3 Months 6 Months Year-to-Date 1 Year 3 Year 5 Year Time Frame Start Date End Date Export to Excel DateOpening PriceClosing PriceHighLowVolumeMarket Capitalization08/07/2025$89.62$98.77+10.21%$100.71$95.542.06 million shs$6.66 billion08/06/2025$92.02$89.62-2.61%$91.74$88.491.52 million shs$6.04 billion08/05/2025$94.00$92.02-2.11%$96.01$90.41935,792 shs$6.21 billion08/04/2025$92.75$94.00+1.35%$94.68$93.02940,629 shs$6.34 billion08/01/2025$95.18$92.75-2.55%$94.27$90.381.44 million shs$6.26 billion07/31/2025$100.42$95.18-5.22%$97.98$93.861.80 million shs$6.42 billion07/30/2025$101.65$100.42-1.21%$103.14$99.31943,856 shs$6.77 billion07/29/2025$102.33$101.65-0.66%$104.80$100.13854,282 shs$6.86 billion07/28/2025$99.50$102.33+2.84%$103.25$100.66830,660 shs$6.90 billion07/25/2025$99.54$99.50-0.04%$99.85$98.01583,969 shs$6.71 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 and its competitors with MarketBeat's FREE daily newsletter. 07/24/2025$99.55$99.54-0.01%$100.57$97.92725,852 shs$6.71 billion07/23/2025$102.42$99.55-2.80%$103.12$98.831.47 million shs$6.71 billion07/22/2025$103.34$102.42-0.89%$104.21$100.38984,726 shs$6.91 billion07/21/2025$104.71$103.34-1.31%$107.31$103.16695,135 shs$6.97 billion07/18/2025$103.94$104.71+0.74%$105.29$102.58661,623 shs$7.06 billion07/17/2025$101.97$103.94+1.93%$104.43$101.57987,730 shs$7.01 billion07/16/2025$103.92$101.97-1.88%$102.48$98.071.47 million shs$6.88 billion07/15/2025$104.68$103.92-0.73%$107.61$103.85970,369 shs$7.01 billion07/14/2025$106.45$104.68-1.66%$105.48$102.22799,462 shs$7.06 billion07/11/2025$107.00$106.45-0.51%$106.89$105.01654,728 shs$7.18 billion07/10/2025$105.78$107.00+1.15%$107.88$104.38827,162 shs$7.22 billion07/09/2025$104.53$105.78+1.20%$106.07$103.39985,535 shs$7.13 billion07/08/2025$102.18$104.53+2.30%$106.66$102.49956,697 shs$7.05 billion07/07/2025$104.77$102.18-2.47%$104.71$101.92981,704 shs$6.89 billion Related Companies ADI Stock Price Chart AEIS Stock Price Chart AMAT Stock Price Chart ENTG Stock Price Chart KLAC Stock Price Chart LRCX Stock Price Chart MCHP Stock Price Chart NXPI Stock Price Chart TER Stock Price Chart UCTT Stock Price Chart Receive MKSI Stock News and Ratings via EmailSign-up to receive the latest news and ratings for MKS and its competitors with MarketBeat's FREE daily newsletter. 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