MKS Stock Price History
NASDAQ: MKSIIndustrialsIndustrial Machinery/ComponentsUSD
264.50+4.12 (+1.58%)
At close: Oct 9, 4:00 PM ET · Delayed 15 min
MKSI price history at a glance
The price history for MKS (MKSI) on this page begins on March 29, 1999, when the stock closed at $13.50; it most recently closed at $264.50 on October 5, 2026. The highest price in this record is $447.62, reached on June 29, 2026; the latest close is 40.9% below that peak. Across the 26 complete calendar years in the table, MKSI finished higher in 16 and lower in 10. Its best year was 2001 (+77.2%) and its worst was 2000 (-57.1%).
Over roughly 28 years the share price changed +1859.3%, a 11.4% compound annual price return (excluding dividends). In the last 12 months alone, MKSI has gained 118.1%. Prices are split-adjusted closing prices; daily open, high, low, close and volume for the past year are listed below.
Summary generated from market data by MetaCap's automated system. Methodology
Key price levels
- High since 1999
- $447.62
- Date of high
- Jun 29, 2026
- Low since 1999
- $8.41
- Date of low
- Oct 14, 2002
- 52-week high
- $447.62
- 52-week low
- $126.92
- IPO year
- 1999
- Last close
- $264.50
MKSI returns
1 week
-5.25%
1 month
-1.32%
3 months
-28.24%
6 months
-1.59%
Year to date
+65.52%
1 year
+118.13%
3 years
+233.12%
5 years
+82.83%
MKSI price return, excluding dividends.
MKSI annual returns
| Year | Year-end close | Return |
|---|---|---|
| 2026 | 264.50 | +57.10% |
| 2025 | 168.36 | +55.46% |
| 2024 | 108.30 | +5.28% |
| 2023 | 102.87 | +21.41% |
| 2022 | 84.73 | -51.35% |
| 2021 | 174.17 | +15.77% |
| 2020 | 150.45 | +39.62% |
| 2019 | 107.76 | +61.32% |
| 2018 | 66.80 | -29.31% |
| 2017 | 94.50 | +59.09% |
| 2016 | 59.40 | +65.00% |
| 2015 | 36.00 | -0.77% |
| 2014 | 36.28 | +20.21% |
| 2013 | 30.18 | +14.88% |
| 2012 | 26.27 | -5.57% |
| 2011 | 27.82 | +13.55% |
| 2010 | 24.50 | +40.80% |
| 2009 | 17.40 | +14.17% |
| 2008 | 15.24 | -9.66% |
| 2007 | 16.87 | -25.29% |
| 2006 | 22.58 | +26.22% |
| 2005 | 17.89 | -3.56% |
| 2004 | 18.55 | -35.77% |
| 2003 | 28.88 | +69.58% |
| 2002 | 17.03 | -37.98% |
| 2001 | 27.46 | +77.16% |
| 2000 | 15.50 | -57.09% |
| 1999* | 36.13 | +167.59% |
* Partial year: the record begins after the start of 1999; return measured from the first available close.
2026 return is year to date.
MKSI daily prices (past year)
| Date | Open | High | Low | Close | Change |
|---|---|---|---|---|---|
| 266.09 | 267.96 | 256.74 | 264.50 | +1.58% | |
| 266.69 | 274.07 | 257.60 | 260.38 | -4.68% | |
| 271.77 | 274.99 | 269.20 | 273.15 | -2.94% | |
| 285.40 | 286.38 | 276.56 | 281.41 | +0.32% | |
| 279.79 | 284.21 | 273.60 | 280.50 | +0.48% | |
| 284.10 | 284.63 | 278.91 | 279.15 | +2.92% | |
| 265.57 | 275.48 | 262.77 | 271.24 | +2.22% | |
| 267.82 | 268.00 | 260.23 | 265.36 | -0.25% | |
| 264.18 | 266.28 | 261.36 | 266.02 | +2.96% | |
| 259.56 | 259.69 | 251.19 | 258.38 | -0.94% | |
| 261.01 | 262.66 | 257.90 | 260.82 | +1.10% | |
| 256.64 | 259.82 | 254.21 | 257.98 | -1.80% | |
| 260.37 | 263.78 | 253.41 | 262.72 | +0.90% | |
| 253.50 | 260.66 | 252.60 | 260.37 | +1.34% | |
| 258.20 | 259.00 | 251.79 | 256.92 | +1.92% | |
| 244.03 | 252.38 | 243.00 | 252.08 | +4.93% | |
| 245.50 | 250.84 | 238.45 | 240.23 | +2.10% | |
| 237.80 | 240.48 | 232.03 | 235.28 | +1.63% | |
| 242.60 | 242.60 | 228.46 | 231.50 | -3.25% | |
| 248.32 | 250.49 | 238.29 | 239.27 | -10.49% | |
| 267.86 | 270.29 | 264.74 | 267.31 | +2.09% | |
| 260.83 | 265.60 | 258.79 | 261.84 | -2.32% | |
| 262.34 | 269.78 | 262.34 | 268.05 | +0.96% | |
| 264.06 | 270.17 | 260.35 | 265.50 | +1.99% | |
| 255.14 | 260.94 | 253.97 | 260.31 | +4.27% | |
| 247.10 | 250.78 | 241.51 | 249.65 | -0.69% | |
| 247.30 | 252.98 | 245.90 | 251.38 | +2.00% | |
| 250.96 | 252.09 | 243.72 | 246.44 | -3.82% | |
| 258.38 | 259.38 | 254.48 | 256.24 | +0.19% | |
| 268.08 | 269.36 | 255.14 | 255.76 | -5.62% | |
| 279.03 | 282.56 | 268.44 | 270.99 | -0.28% | |
| 270.12 | 275.17 | 266.52 | 271.75 | +0.47% | |
| 274.93 | 274.93 | 266.25 | 270.48 | +0.53% | |
| 271.50 | 274.00 | 264.54 | 269.06 | -3.60% | |
| 282.60 | 285.47 | 274.88 | 279.11 | -0.98% | |
| 280.91 | 284.54 | 274.31 | 281.88 | +0.10% | |
| 304.16 | 304.16 | 278.23 | 281.60 | -6.21% | |
| 303.87 | 309.14 | 294.68 | 300.24 | -6.39% | |
| 315.42 | 325.24 | 313.11 | 320.74 | +3.22% | |
| 302.01 | 312.08 | 302.01 | 310.73 | +1.45% | |
| 306.99 | 316.39 | 305.56 | 306.29 | -0.18% | |
| 312.90 | 317.00 | 305.55 | 306.83 | +4.23% | |
| 299.03 | 300.72 | 290.76 | 294.38 | +0.69% | |
| 304.92 | 309.84 | 292.09 | 292.35 | -4.14% | |
| 301.18 | 310.43 | 298.00 | 304.99 | +4.70% | |
| 291.02 | 309.67 | 285.58 | 291.31 | -6.96% | |
| 319.23 | 329.35 | 311.86 | 313.10 | -2.39% | |
| 327.27 | 329.34 | 320.45 | 320.76 | +3.48% | |
| 288.31 | 313.46 | 288.31 | 309.98 | +4.21% | |
| 310.00 | 314.69 | 294.15 | 297.45 | +1.41% | |
| 288.80 | 297.57 | 284.78 | 293.30 | +13.85% | |
| 280.97 | 290.51 | 256.16 | 257.61 | -9.71% | |
| 296.31 | 296.91 | 277.01 | 285.31 | -9.63% | |
| 330.15 | 334.00 | 298.38 | 315.70 | -4.10% | |
| 341.09 | 345.13 | 326.08 | 329.18 | -4.67% | |
| 338.49 | 348.43 | 336.74 | 345.30 | +0.13% | |
| 330.74 | 349.02 | 328.43 | 344.84 | -0.17% | |
| 347.28 | 347.45 | 333.72 | 345.44 | +6.53% | |
| 330.88 | 338.98 | 322.75 | 324.28 | -0.13% | |
| 315.02 | 330.61 | 307.10 | 324.69 | -2.20% | |
| 336.12 | 349.07 | 327.38 | 332.00 | -6.16% | |
| 366.49 | 374.12 | 336.76 | 353.80 | -1.29% | |
| 373.21 | 373.21 | 353.20 | 358.43 | +1.82% | |
| 352.51 | 358.48 | 346.07 | 352.03 | -4.49% | |
| 357.94 | 371.44 | 355.00 | 368.58 | -0.05% | |
| 370.14 | 380.50 | 366.27 | 368.78 | +5.55% | |
| 341.50 | 358.21 | 341.50 | 349.39 | -0.05% | |
| 342.86 | 353.00 | 329.01 | 349.57 | -5.02% | |
| 375.84 | 385.58 | 364.67 | 368.06 | +0.68% | |
| 408.00 | 408.92 | 355.08 | 365.56 | -11.07% | |
| 424.61 | 428.97 | 406.68 | 411.05 | -7.59% | |
| 425.78 | 447.62 | 418.48 | 444.80 | +6.92% | |
| 393.18 | 419.95 | 384.74 | 416.00 | +7.05% | |
| 394.14 | 401.05 | 385.00 | 388.61 | -5.29% | |
| 408.00 | 414.64 | 383.38 | 410.31 | +7.52% | |
| 390.54 | 395.75 | 376.83 | 381.62 | -1.94% | |
| 388.69 | 394.47 | 382.56 | 389.17 | -7.46% | |
| 413.50 | 421.58 | 407.00 | 420.56 | +3.49% | |
| 386.56 | 408.87 | 382.00 | 406.37 | +9.46% | |
| 383.99 | 386.01 | 369.85 | 371.26 | +1.35% | |
| 375.00 | 379.99 | 365.36 | 366.31 | -2.40% | |
| 367.88 | 377.66 | 367.88 | 375.32 | +5.52% | |
| 345.32 | 359.35 | 341.45 | 355.69 | +3.00% | |
| 326.74 | 347.27 | 326.10 | 345.32 | +9.25% | |
| 317.42 | 333.69 | 310.36 | 316.07 | -1.52% | |
| 320.44 | 332.01 | 298.00 | 320.96 | +2.84% | |
| 314.99 | 339.92 | 309.03 | 312.09 | +3.46% | |
| 315.23 | 318.88 | 300.11 | 301.65 | -8.65% | |
| 321.01 | 335.83 | 318.01 | 330.23 | -1.47% | |
| 339.40 | 341.81 | 326.81 | 335.15 | +1.14% | |
| 324.36 | 334.49 | 320.38 | 331.36 | +4.33% | |
| 318.02 | 319.31 | 309.46 | 317.62 | -2.05% | |
| 325.99 | 329.75 | 317.16 | 324.26 | +0.26% | |
| 327.41 | 330.26 | 316.35 | 323.41 | -1.40% | |
| 338.58 | 339.00 | 321.45 | 328.01 | -1.83% | |
| 330.50 | 334.80 | 326.45 | 334.11 | +4.21% | |
| 315.48 | 322.00 | 311.75 | 320.62 | +2.38% | |
| 311.51 | 314.04 | 307.18 | 313.16 | +0.53% | |
| 302.00 | 312.74 | 300.09 | 311.51 | +5.94% | |
| 289.56 | 294.27 | 280.83 | 294.04 | -0.56% | |
| 314.51 | 315.12 | 290.00 | 295.70 | -2.46% | |
| 301.43 | 304.71 | 295.08 | 303.17 | -3.39% | |
| 317.31 | 317.43 | 308.51 | 313.81 | -1.10% | |
| 318.99 | 321.52 | 311.66 | 317.31 | +1.79% | |
| 312.78 | 313.38 | 298.16 | 311.72 | -2.50% | |
| 313.47 | 321.65 | 313.47 | 319.71 | +2.08% | |
| 318.70 | 324.42 | 308.83 | 313.21 | +4.13% | |
| 316.17 | 326.84 | 295.77 | 300.79 | +2.39% | |
| 294.92 | 294.92 | 280.50 | 293.77 | +2.13% | |
| 297.02 | 298.00 | 280.18 | 287.65 | -1.33% | |
| 277.72 | 292.12 | 277.55 | 291.53 | +4.35% | |
| 282.98 | 285.67 | 275.04 | 279.38 | -1.54% | |
| 270.18 | 284.14 | 263.73 | 283.75 | +6.90% | |
| 273.88 | 278.91 | 261.23 | 265.44 | -0.92% | |
| 268.88 | 277.00 | 264.45 | 267.90 | -3.76% | |
| 282.57 | 283.61 | 267.94 | 278.36 | -0.93% | |
| 290.00 | 294.05 | 279.38 | 280.98 | +0.15% | |
| 280.28 | 287.00 | 272.97 | 280.56 | +0.76% | |
| 280.97 | 282.62 | 266.85 | 278.45 | +1.71% | |
| 283.57 | 289.49 | 271.19 | 273.77 | -2.20% | |
| 279.01 | 285.82 | 278.00 | 279.93 | +0.48% | |
| 277.17 | 281.77 | 275.00 | 278.59 | +3.22% | |
| 267.92 | 272.51 | 263.00 | 269.89 | +0.33% | |
| 269.57 | 272.92 | 261.89 | 269.00 | -1.88% | |
| 275.97 | 277.94 | 269.95 | 274.15 | +0.36% | |
| 266.65 | 273.55 | 265.28 | 273.18 | +1.64% | |
| 268.26 | 272.71 | 266.00 | 268.77 | +2.10% | |
| 255.22 | 267.07 | 255.22 | 263.25 | +2.83% | |
| 256.99 | 260.99 | 250.00 | 256.01 | +7.49% | |
| 233.96 | 241.90 | 232.92 | 238.17 | +0.50% | |
| 236.11 | 240.82 | 233.12 | 236.98 | +0.99% | |
| 222.42 | 241.11 | 222.42 | 234.66 | -0.55% | |
| 234.57 | 240.00 | 233.10 | 235.96 | +2.68% | |
| 217.46 | 231.16 | 215.00 | 229.81 | +9.19% | |
| 227.97 | 227.97 | 208.47 | 210.47 | -5.69% | |
| 222.08 | 228.57 | 221.16 | 223.18 | -0.86% | |
| 237.00 | 239.21 | 224.04 | 225.12 | -7.62% | |
| 244.64 | 245.70 | 236.00 | 243.68 | +0.05% | |
| 231.49 | 247.90 | 229.08 | 243.56 | +3.63% | |
| 234.87 | 243.50 | 232.61 | 235.02 | +3.47% | |
| 235.70 | 237.95 | 222.10 | 227.13 | -4.10% | |
| 224.32 | 239.36 | 220.14 | 236.85 | +1.48% | |
| 231.21 | 235.25 | 228.23 | 233.39 | +1.97% | |
| 223.20 | 230.62 | 220.74 | 228.89 | +3.12% | |
| 218.99 | 227.46 | 217.92 | 221.96 | +3.99% | |
| 216.69 | 224.72 | 212.08 | 213.45 | -0.02% | |
| 218.93 | 220.71 | 211.09 | 213.49 | -4.81% | |
| 222.97 | 230.98 | 221.50 | 224.27 | -0.45% | |
| 220.33 | 233.42 | 220.09 | 225.28 | +3.17% | |
| 203.88 | 220.54 | 200.50 | 218.36 | +3.98% | |
| 220.33 | 224.29 | 208.95 | 210.00 | -8.87% | |
| 230.03 | 238.35 | 223.19 | 230.45 | -2.03% | |
| 237.16 | 239.98 | 231.62 | 235.23 | +1.15% | |
| 235.64 | 239.26 | 228.56 | 232.56 | -4.79% | |
| 239.44 | 246.98 | 238.00 | 244.26 | -0.08% | |
| 239.00 | 245.00 | 237.91 | 244.46 | -0.09% | |
| 255.01 | 256.77 | 238.88 | 244.68 | -4.39% | |
| 256.68 | 258.86 | 252.33 | 255.91 | +1.79% | |
| 255.00 | 258.00 | 249.06 | 251.41 | -0.91% | |
| 258.98 | 260.68 | 248.62 | 253.71 | -2.14% | |
| 247.55 | 263.36 | 247.00 | 259.27 | +4.09% | |
| 251.86 | 254.76 | 245.15 | 249.08 | -0.51% | |
| 243.38 | 261.00 | 242.20 | 250.36 | -4.78% | |
| 257.68 | 269.91 | 253.20 | 262.94 | +0.84% | |
| 249.26 | 263.90 | 248.56 | 260.74 | +4.54% | |
| 261.01 | 264.45 | 247.50 | 249.42 | -3.72% | |
| 257.90 | 266.08 | 252.39 | 259.05 | +2.59% | |
| 258.35 | 259.70 | 246.10 | 252.52 | +0.77% | |
| 241.71 | 251.99 | 239.36 | 250.60 | +3.14% | |
| 231.91 | 244.06 | 231.34 | 242.96 | +7.11% | |
| 216.77 | 230.36 | 213.49 | 226.83 | +3.10% | |
| 232.26 | 237.93 | 212.91 | 220.00 | -4.17% | |
| 239.76 | 241.18 | 225.82 | 229.58 | -1.71% | |
| 231.71 | 242.18 | 228.00 | 233.57 | -0.78% | |
| 238.95 | 245.96 | 233.09 | 235.41 | -3.47% | |
| 238.64 | 246.35 | 235.86 | 243.88 | +3.32% | |
| 233.62 | 239.39 | 231.34 | 236.05 | +2.81% | |
| 221.16 | 232.81 | 220.50 | 229.60 | +4.98% | |
| 217.73 | 220.49 | 215.17 | 218.70 | +0.76% | |
| 223.00 | 223.00 | 214.08 | 217.06 | -2.66% | |
| 230.33 | 233.11 | 216.31 | 223.00 | +1.03% | |
| 215.96 | 221.07 | 210.91 | 220.73 | +4.78% | |
| 200.44 | 212.59 | 200.00 | 210.66 | +3.27% | |
| 209.37 | 210.42 | 200.14 | 203.99 | -0.62% | |
| 205.00 | 211.08 | 202.32 | 205.26 | +7.86% | |
| 190.86 | 192.82 | 186.58 | 190.30 | -1.54% | |
| 187.85 | 193.39 | 185.00 | 193.28 | +3.96% | |
| 183.40 | 188.71 | 183.40 | 185.92 | -0.09% | |
| 180.68 | 186.71 | 180.52 | 186.08 | +3.97% | |
| 181.00 | 181.00 | 174.09 | 178.98 | -2.31% | |
| 180.31 | 183.33 | 179.57 | 183.22 | -0.15% | |
| 177.34 | 185.09 | 177.34 | 183.50 | +4.15% | |
| 172.05 | 176.37 | 170.76 | 176.19 | +4.65% | |
| 164.54 | 169.54 | 164.54 | 168.36 | +5.36% | |
| 162.11 | 162.43 | 159.56 | 159.80 | -1.25% | |
| 163.15 | 163.84 | 161.60 | 161.82 | -0.61% | |
| 162.04 | 163.70 | 160.74 | 162.81 | -0.84% | |
| 164.45 | 164.87 | 162.68 | 164.19 | +0.48% | |
| 163.06 | 164.40 | 161.13 | 163.40 | +0.29% | |
| 160.30 | 164.03 | 160.00 | 162.92 | +0.57% | |
| 162.49 | 163.50 | 160.02 | 161.99 | +1.52% | |
| 157.61 | 161.08 | 157.61 | 159.56 | +1.62% | |
| 155.36 | 158.28 | 153.55 | 157.01 | +5.59% | |
| 157.67 | 158.25 | 146.90 | 148.70 | -4.83% | |
| 159.62 | 160.78 | 154.19 | 156.25 | -1.92% | |
| 159.26 | 160.55 | 156.93 | 159.31 | +2.27% | |
| 164.37 | 165.89 | 153.12 | 155.77 | -6.61% | |
| 166.49 | 168.49 | 163.00 | 166.80 | -0.64% | |
| 165.05 | 170.37 | 164.83 | 167.88 | +1.63% | |
| 164.15 | 166.95 | 162.65 | 165.19 | +0.48% | |
| 164.82 | 167.27 | 162.78 | 164.40 | +0.90% | |
| 165.00 | 165.95 | 162.15 | 162.94 | -0.25% | |
| 161.44 | 164.06 | 160.56 | 163.35 | -0.03% | |
| 161.25 | 164.79 | 158.88 | 163.40 | +1.51% | |
| 158.81 | 162.85 | 156.86 | 160.97 | +3.23% | |
| 155.96 | 158.70 | 154.00 | 155.94 | -0.29% | |
| 153.11 | 156.49 | 152.00 | 156.39 | +2.87% | |
| 150.76 | 154.36 | 148.64 | 152.02 | +2.03% | |
| 149.12 | 150.39 | 145.03 | 149.00 | -0.63% | |
| 144.00 | 150.76 | 144.00 | 149.95 | +4.13% | |
| 138.24 | 144.45 | 134.74 | 144.00 | +3.98% | |
| 149.47 | 149.47 | 137.95 | 138.49 | -3.73% | |
| 142.22 | 147.29 | 141.00 | 143.86 | +2.48% | |
| 139.29 | 144.62 | 137.03 | 140.38 | -0.94% | |
| 141.16 | 145.17 | 138.74 | 141.71 | -0.72% | |
| 138.76 | 146.21 | 138.36 | 142.74 | -0.95% | |
| 151.84 | 152.50 | 140.99 | 144.11 | -5.91% | |
| 156.00 | 157.04 | 151.47 | 153.17 | +0.35% | |
| 158.03 | 158.03 | 152.00 | 152.63 | -3.95% | |
| 158.50 | 160.18 | 154.74 | 158.90 | +2.65% | |
| 152.80 | 155.79 | 145.27 | 154.80 | -0.29% | |
| 147.23 | 157.23 | 146.53 | 155.25 | +10.96% | |
| 139.56 | 144.31 | 138.17 | 139.92 | +1.98% | |
| 139.73 | 142.11 | 136.95 | 137.20 | -5.69% | |
| 143.93 | 146.81 | 142.20 | 145.47 | +1.22% | |
| 141.00 | 144.80 | 140.00 | 143.71 | +3.16% | |
| 141.39 | 142.73 | 138.55 | 139.31 | -1.48% | |
| 144.00 | 146.00 | 139.86 | 141.40 | +0.65% | |
| 143.54 | 143.66 | 140.26 | 140.48 | -3.12% | |
| 146.16 | 147.31 | 144.95 | 145.01 | +1.45% | |
| 143.00 | 146.84 | 142.00 | 142.94 | +1.63% | |
| 132.40 | 142.34 | 132.28 | 140.65 | +4.63% | |
| 138.68 | 141.06 | 130.72 | 134.42 | -4.48% | |
| 140.49 | 141.80 | 139.52 | 140.73 | -0.60% | |
| 137.87 | 142.33 | 137.87 | 141.58 | +3.71% | |
| 136.16 | 137.72 | 134.61 | 136.52 | -0.89% | |
| 138.05 | 139.10 | 135.19 | 137.75 | +0.97% | |
| 136.21 | 137.50 | 133.86 | 136.42 | +2.82% | |
| 127.83 | 135.48 | 126.92 | 132.68 | -0.26% | |
| 129.45 | 133.77 | 127.77 | 133.03 | +9.71% | |
| 134.93 | 135.50 | 120.91 | 121.26 | — |
Prices are adjusted for stock splits. See adjusted closing price for how dividends and splits affect history, and the MKSI chart for longer ranges.