Nasdaq · Common stock
MKS (MKSI)
$202.28 +$5.73 (+2.92%)
- Day’s range
- $197.03–$205.33
- Volume
- 1.1M
MKSI price history
MKSI closed at $202.28 on Oct. 26, 2026. Over the past year, its daily close ranged from $137.20 on Nov. 4, 2025 to $444.80 on June 30, 2026.
Data table: MKSI daily closes, the past year
| Date | Close |
|---|---|
| Oct. 26, 2026 | $202.28 |
| Oct. 23, 2026 | $196.55 |
| Oct. 22, 2026 | $196.11 |
| Oct. 21, 2026 | $216.10 |
| Oct. 20, 2026 | $211.14 |
| Oct. 19, 2026 | $215.41 |
| Oct. 16, 2026 | $214.83 |
| Oct. 15, 2026 | $228.52 |
| Oct. 14, 2026 | $234.50 |
| Oct. 13, 2026 | $247.56 |
| Oct. 12, 2026 | $249.91 |
| Oct. 9, 2026 | $264.50 |
| Oct. 8, 2026 | $260.38 |
| Oct. 7, 2026 | $273.15 |
| Oct. 6, 2026 | $281.41 |
| Oct. 5, 2026 | $280.50 |
| Oct. 2, 2026 | $279.15 |
| Oct. 1, 2026 | $271.24 |
| Sept. 30, 2026 | $265.36 |
| Sept. 29, 2026 | $266.02 |
| Sept. 28, 2026 | $258.38 |
| Sept. 25, 2026 | $260.82 |
| Sept. 24, 2026 | $257.98 |
| Sept. 23, 2026 | $262.72 |
| Sept. 22, 2026 | $260.37 |
| Sept. 21, 2026 | $256.92 |
| Sept. 18, 2026 | $252.08 |
| Sept. 17, 2026 | $240.23 |
| Sept. 16, 2026 | $235.28 |
| Sept. 15, 2026 | $231.50 |
| Sept. 14, 2026 | $239.27 |
| Sept. 11, 2026 | $267.31 |
| Sept. 10, 2026 | $261.84 |
| Sept. 9, 2026 | $268.05 |
| Sept. 8, 2026 | $265.50 |
| Sept. 4, 2026 | $260.31 |
| Sept. 3, 2026 | $249.65 |
| Sept. 2, 2026 | $251.38 |
| Sept. 1, 2026 | $246.44 |
| Aug. 31, 2026 | $256.24 |
| Aug. 28, 2026 | $255.76 |
| Aug. 27, 2026 | $270.99 |
| Aug. 26, 2026 | $271.75 |
| Aug. 25, 2026 | $270.48 |
| Aug. 24, 2026 | $269.06 |
| Aug. 21, 2026 | $279.11 |
| Aug. 20, 2026 | $281.88 |
| Aug. 19, 2026 | $281.60 |
| Aug. 18, 2026 | $300.24 |
| Aug. 17, 2026 | $320.74 |
| Aug. 14, 2026 | $310.73 |
| Aug. 13, 2026 | $306.29 |
| Aug. 12, 2026 | $306.83 |
| Aug. 11, 2026 | $294.38 |
| Aug. 10, 2026 | $292.35 |
| Aug. 7, 2026 | $304.99 |
| Aug. 6, 2026 | $291.31 |
| Aug. 5, 2026 | $313.10 |
| Aug. 4, 2026 | $320.76 |
| Aug. 3, 2026 | $309.98 |
| July 31, 2026 | $297.45 |
| July 30, 2026 | $293.30 |
| July 29, 2026 | $257.61 |
| July 28, 2026 | $285.31 |
| July 27, 2026 | $315.70 |
| July 24, 2026 | $329.18 |
| July 23, 2026 | $345.30 |
| July 22, 2026 | $344.84 |
| July 21, 2026 | $345.44 |
| July 20, 2026 | $324.28 |
| July 17, 2026 | $324.69 |
| July 16, 2026 | $332.00 |
| July 15, 2026 | $353.80 |
| July 14, 2026 | $358.43 |
| July 13, 2026 | $352.03 |
| July 10, 2026 | $368.58 |
| July 9, 2026 | $368.78 |
| July 8, 2026 | $349.39 |
| July 7, 2026 | $349.57 |
| July 6, 2026 | $368.06 |
| July 2, 2026 | $365.56 |
| July 1, 2026 | $411.05 |
| June 30, 2026 | $444.80 |
| June 29, 2026 | $416.00 |
| June 26, 2026 | $388.61 |
| June 25, 2026 | $410.31 |
| June 24, 2026 | $381.62 |
| June 23, 2026 | $389.17 |
| June 22, 2026 | $420.56 |
| June 18, 2026 | $406.37 |
| June 17, 2026 | $371.26 |
| June 16, 2026 | $366.31 |
| June 15, 2026 | $375.32 |
| June 12, 2026 | $355.69 |
| June 11, 2026 | $345.32 |
| June 10, 2026 | $316.07 |
| June 9, 2026 | $320.96 |
| June 8, 2026 | $312.09 |
| June 5, 2026 | $301.65 |
| June 4, 2026 | $330.23 |
| June 3, 2026 | $335.15 |
| June 2, 2026 | $331.36 |
| June 1, 2026 | $317.62 |
| May 29, 2026 | $324.26 |
| May 28, 2026 | $323.41 |
| May 27, 2026 | $328.01 |
| May 26, 2026 | $334.11 |
| May 22, 2026 | $320.62 |
| May 21, 2026 | $313.16 |
| May 20, 2026 | $311.51 |
| May 19, 2026 | $294.04 |
| May 18, 2026 | $295.70 |
| May 15, 2026 | $303.17 |
| May 14, 2026 | $313.81 |
| May 13, 2026 | $317.31 |
| May 12, 2026 | $311.72 |
| May 11, 2026 | $319.71 |
| May 8, 2026 | $313.21 |
| May 7, 2026 | $300.79 |
| May 6, 2026 | $293.77 |
| May 5, 2026 | $287.65 |
| May 4, 2026 | $291.53 |
| May 1, 2026 | $279.38 |
| April 30, 2026 | $283.75 |
| April 29, 2026 | $265.44 |
| April 28, 2026 | $267.90 |
| April 27, 2026 | $278.36 |
| April 24, 2026 | $280.98 |
| April 23, 2026 | $280.56 |
| April 22, 2026 | $278.45 |
| April 21, 2026 | $273.77 |
| April 20, 2026 | $279.93 |
| April 17, 2026 | $278.59 |
| April 16, 2026 | $269.89 |
| April 15, 2026 | $269.00 |
| April 14, 2026 | $274.15 |
| April 13, 2026 | $273.18 |
| April 10, 2026 | $268.77 |
| April 9, 2026 | $263.25 |
| April 8, 2026 | $256.01 |
| April 7, 2026 | $238.17 |
| April 6, 2026 | $236.98 |
| April 2, 2026 | $234.66 |
| April 1, 2026 | $235.96 |
| March 31, 2026 | $229.81 |
| March 30, 2026 | $210.47 |
| March 27, 2026 | $223.18 |
| March 26, 2026 | $225.12 |
| March 25, 2026 | $243.68 |
| March 24, 2026 | $243.56 |
| March 23, 2026 | $235.02 |
| March 20, 2026 | $227.13 |
| March 19, 2026 | $236.85 |
| March 18, 2026 | $233.39 |
| March 17, 2026 | $228.89 |
| March 16, 2026 | $221.96 |
| March 13, 2026 | $213.45 |
| March 12, 2026 | $213.49 |
| March 11, 2026 | $224.27 |
| March 10, 2026 | $225.28 |
| March 9, 2026 | $218.36 |
| March 6, 2026 | $210.00 |
| March 5, 2026 | $230.45 |
| March 4, 2026 | $235.23 |
| March 3, 2026 | $232.56 |
| March 2, 2026 | $244.26 |
| Feb. 27, 2026 | $244.46 |
| Feb. 26, 2026 | $244.68 |
| Feb. 25, 2026 | $255.91 |
| Feb. 24, 2026 | $251.41 |
| Feb. 23, 2026 | $253.71 |
| Feb. 20, 2026 | $259.27 |
| Feb. 19, 2026 | $249.08 |
| Feb. 18, 2026 | $250.36 |
| Feb. 17, 2026 | $262.94 |
| Feb. 13, 2026 | $260.74 |
| Feb. 12, 2026 | $249.42 |
| Feb. 11, 2026 | $259.05 |
| Feb. 10, 2026 | $252.52 |
| Feb. 9, 2026 | $250.60 |
| Feb. 6, 2026 | $242.96 |
| Feb. 5, 2026 | $226.83 |
| Feb. 4, 2026 | $220.00 |
| Feb. 3, 2026 | $229.58 |
| Feb. 2, 2026 | $233.57 |
| Jan. 30, 2026 | $235.41 |
| Jan. 29, 2026 | $243.88 |
| Jan. 28, 2026 | $236.05 |
| Jan. 27, 2026 | $229.60 |
| Jan. 26, 2026 | $218.70 |
| Jan. 23, 2026 | $217.06 |
| Jan. 22, 2026 | $223.00 |
| Jan. 21, 2026 | $220.73 |
| Jan. 20, 2026 | $210.66 |
| Jan. 16, 2026 | $203.99 |
| Jan. 15, 2026 | $205.26 |
| Jan. 14, 2026 | $190.30 |
| Jan. 13, 2026 | $193.28 |
| Jan. 12, 2026 | $185.92 |
| Jan. 9, 2026 | $186.08 |
| Jan. 8, 2026 | $178.98 |
| Jan. 7, 2026 | $183.22 |
| Jan. 6, 2026 | $183.50 |
| Jan. 5, 2026 | $176.19 |
| Jan. 2, 2026 | $168.36 |
| Dec. 31, 2025 | $159.80 |
| Dec. 30, 2025 | $161.82 |
| Dec. 29, 2025 | $162.81 |
| Dec. 26, 2025 | $164.19 |
| Dec. 24, 2025 | $163.40 |
| Dec. 23, 2025 | $162.92 |
| Dec. 22, 2025 | $161.99 |
| Dec. 19, 2025 | $159.56 |
| Dec. 18, 2025 | $157.01 |
| Dec. 17, 2025 | $148.70 |
| Dec. 16, 2025 | $156.25 |
| Dec. 15, 2025 | $159.31 |
| Dec. 12, 2025 | $155.77 |
| Dec. 11, 2025 | $166.80 |
| Dec. 10, 2025 | $167.88 |
| Dec. 9, 2025 | $165.19 |
| Dec. 8, 2025 | $164.40 |
| Dec. 5, 2025 | $162.94 |
| Dec. 4, 2025 | $163.35 |
| Dec. 3, 2025 | $163.40 |
| Dec. 2, 2025 | $160.97 |
| Dec. 1, 2025 | $155.94 |
| Nov. 28, 2025 | $156.39 |
| Nov. 26, 2025 | $152.02 |
| Nov. 25, 2025 | $149.00 |
| Nov. 24, 2025 | $149.95 |
| Nov. 21, 2025 | $144.00 |
| Nov. 20, 2025 | $138.49 |
| Nov. 19, 2025 | $143.86 |
| Nov. 18, 2025 | $140.38 |
| Nov. 17, 2025 | $141.71 |
| Nov. 14, 2025 | $142.74 |
| Nov. 13, 2025 | $144.11 |
| Nov. 12, 2025 | $153.17 |
| Nov. 11, 2025 | $152.63 |
| Nov. 10, 2025 | $158.90 |
| Nov. 7, 2025 | $154.80 |
| Nov. 6, 2025 | $155.25 |
| Nov. 5, 2025 | $139.92 |
| Nov. 4, 2025 | $137.20 |
| Nov. 3, 2025 | $145.47 |
| Oct. 31, 2025 | $143.71 |
| Oct. 30, 2025 | $139.31 |
| Oct. 29, 2025 | $141.40 |
| Oct. 28, 2025 | $140.48 |
| Oct. 27, 2025 | $145.01 |
Key figures
- 52-week range
- $137.20–$444.80Low Nov. 4, 2025; high June 30, 2026
- Average daily volume
- 1.4MPast 3 months
- Market value
- $13.68B
- Dividend yield
- 0.48%Past 12 months of regular dividends
- From 52-week high
- −54.52%
Price change
- 1 month
- −22.44%
- 3 months
- −38.55%
- Year to date
- +26.58%
- 1 year
- +41.51%
$1,000 a year ago
$1,000 put into MKSI at the close on Oct. 24, 2025 would be worth $1,415.
Price only, dividends not included.
What Wall Street says about MKSI
In the past 90 days, Wall Street firms published 8 rating or price-target actions on MKSI: 1 reiterated rating, 4 raised price targets and 3 lowered price targets.
| Action | Rating | |||
|---|---|---|---|---|
| Morgan Stanley | Cuts target | Overweight | $345 to $330 | |
| Morgan Stanley | Cuts target | Overweight | $439 to $345 | |
| Mizuho | Cuts target | Outperform | $360 to $330 | |
| Citigroup | Raises target | Buy | $425 to $430 | |
| JP Morgan | Raises target | Overweight | $365 to $380 | |
| Wells Fargo | Raises target | Equal-weight | $300 to $325 | |
| Needham | Raises target | Buy | $360 to $390 | |
| Cantor Fitzgerald | Reiterates | Overweight | $600 |
Ratings and price targets are the firms’ own opinions, reported as published.
Not investment advice.
Recent dividends
| Ex-dividend date | Per share |
|---|---|
| Regular, paid Sept. 3 | $0.25 |
| Regular, paid June 12 | $0.25 |
| Regular, paid March 6 | $0.25 |
| Regular, paid Dec. 5, 2025 | $0.22 |
About MKS Inc. Common Stock
MKS Inc delivers foundational technology solutions for leading edge semiconductor manufacturing, electronics and packaging, and specialty industrial applications. The company provides instruments, components, subsystems, systems, process control solutions, and specialty chemicals technology that improve process performance and optimize productivity. Its solutions address challenges of miniaturization and complexity in device manufacturing, enabling increased power, speed, and feature enhancement. MKS Inc operates through three divisions: Vacuum Solutions Division (VSD), Photonics Solutions Division (PSD), and Materials Solutions Division (MSD). The company operates in the United States, which generates maximum revenue, as well as China and other countries.
- Headquarters
- Andover, Mass.
- Employees
- 10,300
- Listed
- March 30, 1999
- Industry
- Industrial instruments for measurement, display, and control
In WallStreetDigest editions
No WallStreetDigest article about MKSI is on the site yet.