Range Low Price High Price Comment
30 days $277.55 $339.00 Tuesday, 2nd Jun 2026 MKSI stock ended at $331.36. This is 4.33% more than the trading day before Monday, 1st Jun 2026. During the day the stock fluctuated 4.40% from a day low at $320.38 to a day high of $334.49.
90 days $200.86 $339.00
52 weeks $81.36 $339.00

Historical MKS Instruments prices

Date Open High Low Close Volume
Jun 02, 2026 $324.36 $334.49 $320.38 $331.36 1 116 933
Jun 01, 2026 $318.27 $319.31 $309.46 $317.62 1 022 092
May 29, 2026 $325.99 $329.58 $317.16 $324.26 1 200 418
May 28, 2026 $326.48 $330.26 $316.35 $323.41 1 100 518
May 27, 2026 $338.57 $339.00 $321.45 $328.01 881 186
May 26, 2026 $330.50 $334.80 $326.45 $334.11 855 558
May 22, 2026 $316.00 $322.00 $311.75 $320.62 829 646
May 21, 2026 $312.62 $314.04 $307.37 $313.16 1 336 508
May 20, 2026 $302.00 $312.74 $300.40 $311.51 1 087 919
May 19, 2026 $290.00 $294.20 $280.83 $294.04 1 437 010
May 18, 2026 $314.51 $315.12 $290.00 $295.70 1 447 977
May 15, 2026 $301.43 $304.71 $295.25 $303.17 1 201 352
May 14, 2026 $316.50 $317.43 $308.86 $313.81 984 034
May 13, 2026 $318.99 $321.40 $311.66 $317.31 914 505
May 12, 2026 $312.78 $312.78 $298.16 $311.72 1 470 458
May 11, 2026 $314.97 $321.65 $313.47 $319.71 1 207 478
May 08, 2026 $318.70 $324.41 $308.83 $313.21 1 729 431
May 07, 2026 $315.93 $326.84 $295.77 $300.79 2 296 395
May 06, 2026 $292.52 $294.92 $280.50 $293.77 1 821 195
May 05, 2026 $297.02 $298.00 $280.18 $287.65 1 535 015
May 04, 2026 $280.47 $292.11 $277.55 $291.53 1 903 674
May 01, 2026 $282.98 $285.67 $275.04 $279.38 1 280 675
Apr 30, 2026 $270.18 $284.09 $263.73 $283.75 1 178 477
Apr 29, 2026 $273.88 $278.91 $261.23 $265.44 669 844
Apr 28, 2026 $268.88 $277.00 $264.45 $267.90 1 078 197

FAQ

What are historical stock prices?
Historical stock prices refer to a stock’s recorded prices at various past points. These prices include several key figures that help investors and analysts evaluate a stock’s performance over time:
Open: Open price for the trading day.
High: Highest price for the trading day.
Low: Lowest price for the trading day.
Close: Close price for the trading day.

Additionally, historical prices often include:
Volume is the number of shares traded during the day. It indicates how actively a stock was traded and can provide insights into market sentiment and liquidity.

How can I use MKSI stock historical prices to predict future price movements?
Trend Analysis: Examine the MKSI stock’s historical trends to identify patterns that might continue.
Moving Averages: Use moving averages to detect potential reversal points.
Momentum Indicators: Apply indicators like RSI or MACD to assess the momentum and strength of price movements.
Volume Analysis: Analyze trading volume alongside price changes to gauge trend strength.
Statistical Methods: Use statistical tools such as regression analysis to model and forecast future prices based on past data.
These techniques can provide insights but should be used with risk management practices to mitigate potential losses.

What impact do stock splits have on historical price data?
When a company performs a stock split, it adjusts the historical price data to reflect the new, lower trading price as if it had always been that way.

This ensures consistency for anyone analyzing the stock’s past prices. The adjustment helps prevent misleading signals on charts, such as false sell signals or bearish trends that aren’t there. For instance, in a 2-for-1 stock split, the price per share is cut in half, which would otherwise appear as a dramatic drop on the chart. If someone didn’t know about the split, they might wrongly think something negative happened to the company. Most technical indicators would also react to this apparent drop by signaling to sell.

A stock split, while making the shares seem more affordable and potentially more attractive to investors, doesn’t alter the company’s fundamental value.

Why do the MKSI stock historical prices show a range for periods like 30 days, 90 days, and 52 weeks?
The range provides the lowest and highest prices at which the stock has traded during the specified period. This helps investors understand the stock’s volatility and price variability within that timeframe.

How can I use historical price volatility to assess risk?
High price volatility historically indicates higher risk and potentially higher returns. Investors can gauge the stock’s risk level by examining the range between high and low prices over various periods.
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ABOUT MKS INSTRUMENTS
MKS Instruments
MKS Instruments, Inc. provides instruments, systems, subsystems, and process control solutions that measure, monitor, deliver, analyze, power, and control critical parameters of manufacturing processes worldwide. Its Vacuum & Analysis segment offers pressure and vacuum control solutions, including direct and indirect pressure measurement; materials delivery solutions comprising flow and valve technologies, as well as integrated pressure measureme...
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