MKS Inc. (MKSI)
NASDAQ: MKSI · Real-Time Price · USD
267.66
+2.16 (0.81%)
Sep 9, 2026, 3:30 PM EDT - Market open
MKS Inc. Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Sep 9, 2026 | 262.34 | 269.78 | 262.34 | 267.23 | - | 0.65% | 694,662 |
| Sep 8, 2026 | 264.06 | 270.17 | 260.35 | 265.50 | 265.50 | 1.99% | 1,752,524 |
| Sep 4, 2026 | 255.14 | 260.94 | 253.97 | 260.31 | 260.31 | 4.27% | 1,630,483 |
| Sep 3, 2026 | 247.10 | 250.78 | 241.51 | 249.65 | 249.65 | -0.69% | 1,137,004 |
| Sep 2, 2026 | 247.30 | 252.98 | 245.90 | 251.38 | 251.38 | 2.00% | 1,089,962 |
| Sep 1, 2026 | 250.96 | 252.09 | 243.72 | 246.44 | 246.44 | -3.82% | 1,644,232 |
| Aug 31, 2026 | 258.38 | 259.38 | 254.48 | 256.24 | 256.24 | 0.19% | 977,647 |
| Aug 28, 2026 | 268.08 | 269.36 | 255.14 | 255.76 | 255.76 | -5.62% | 1,407,551 |
| Aug 27, 2026 | 279.03 | 282.56 | 268.44 | 270.99 | 270.99 | -0.28% | 792,101 |
| Aug 26, 2026 | 270.12 | 275.17 | 266.52 | 271.75 | 271.75 | 0.47% | 1,703,554 |
| Aug 25, 2026 | 274.93 | 274.93 | 266.25 | 270.48 | 270.48 | 0.62% | 1,157,627 |
| Aug 24, 2026 | 271.50 | 274.00 | 264.54 | 269.06 | 268.81 | -3.60% | 1,884,336 |
| Aug 21, 2026 | 282.60 | 285.47 | 274.88 | 279.11 | 278.85 | -0.98% | 928,026 |
| Aug 20, 2026 | 280.91 | 284.54 | 274.31 | 281.88 | 281.62 | 0.10% | 1,113,251 |
| Aug 19, 2026 | 304.16 | 304.16 | 278.23 | 281.60 | 281.34 | -6.21% | 1,535,867 |
| Aug 18, 2026 | 303.87 | 309.14 | 294.68 | 300.24 | 299.96 | -6.39% | 1,426,296 |
| Aug 17, 2026 | 315.42 | 325.24 | 313.11 | 320.74 | 320.44 | 3.22% | 1,172,574 |
| Aug 14, 2026 | 302.01 | 312.08 | 302.01 | 310.73 | 310.44 | 1.45% | 1,178,613 |
| Aug 13, 2026 | 306.99 | 316.39 | 305.56 | 306.29 | 306.01 | -0.18% | 946,846 |
| Aug 12, 2026 | 312.90 | 317.00 | 305.55 | 306.83 | 306.54 | 4.23% | 1,210,822 |
| Aug 11, 2026 | 299.03 | 300.72 | 290.76 | 294.38 | 294.11 | 0.69% | 698,759 |
| Aug 10, 2026 | 304.92 | 309.84 | 292.09 | 292.35 | 292.08 | -4.14% | 1,068,534 |
| Aug 7, 2026 | 301.18 | 310.43 | 298.00 | 304.99 | 304.71 | 4.70% | 1,269,658 |
| Aug 6, 2026 | 291.02 | 309.67 | 285.58 | 291.31 | 291.04 | -6.96% | 2,840,272 |
| Aug 5, 2026 | 319.23 | 329.35 | 311.86 | 313.10 | 312.81 | -2.39% | 2,366,180 |
| Aug 4, 2026 | 327.27 | 329.34 | 320.45 | 320.76 | 320.46 | 3.48% | 2,892,303 |
| Aug 3, 2026 | 288.31 | 313.46 | 288.31 | 309.98 | 309.69 | 4.21% | 1,404,670 |
| Jul 31, 2026 | 310.00 | 314.69 | 294.15 | 297.45 | 297.17 | 1.41% | 1,143,074 |
| Jul 30, 2026 | 288.80 | 297.57 | 284.78 | 293.30 | 293.03 | 13.85% | 3,027,600 |
| Jul 29, 2026 | 280.97 | 290.51 | 256.16 | 257.61 | 257.37 | -9.71% | 2,510,384 |
| Jul 28, 2026 | 296.31 | 296.91 | 277.01 | 285.31 | 285.04 | -9.63% | 1,990,201 |
| Jul 27, 2026 | 330.15 | 334.00 | 298.38 | 315.70 | 315.41 | -4.10% | 1,391,385 |
| Jul 24, 2026 | 341.09 | 345.13 | 326.08 | 329.18 | 328.87 | -4.67% | 849,716 |
| Jul 23, 2026 | 338.49 | 348.43 | 336.74 | 345.30 | 344.98 | 0.13% | 752,096 |
| Jul 22, 2026 | 330.74 | 349.02 | 328.43 | 344.84 | 344.52 | -0.17% | 801,307 |
| Jul 21, 2026 | 347.28 | 347.45 | 333.72 | 345.44 | 345.12 | 6.53% | 1,106,515 |
| Jul 20, 2026 | 330.88 | 338.98 | 322.75 | 324.28 | 323.98 | -0.13% | 812,897 |
| Jul 17, 2026 | 315.02 | 330.61 | 307.10 | 324.69 | 324.39 | -2.20% | 1,893,433 |
| Jul 16, 2026 | 336.12 | 349.07 | 327.38 | 332.00 | 331.69 | -6.16% | 1,112,182 |
| Jul 15, 2026 | 366.49 | 374.12 | 336.76 | 353.80 | 353.47 | -1.29% | 1,403,157 |
| Jul 14, 2026 | 373.21 | 373.21 | 353.20 | 358.43 | 358.10 | 1.82% | 828,599 |
| Jul 13, 2026 | 352.51 | 358.48 | 346.07 | 352.03 | 351.70 | -4.49% | 851,882 |
| Jul 10, 2026 | 357.94 | 371.44 | 355.00 | 368.58 | 368.24 | -0.05% | 862,769 |
| Jul 9, 2026 | 370.14 | 380.50 | 366.27 | 368.78 | 368.44 | 5.55% | 1,257,065 |
| Jul 8, 2026 | 341.50 | 358.21 | 341.50 | 349.39 | 349.07 | -0.05% | 1,228,277 |
| Jul 7, 2026 | 342.86 | 353.00 | 329.01 | 349.57 | 349.25 | -5.02% | 1,886,573 |
| Jul 6, 2026 | 375.84 | 385.58 | 364.67 | 368.06 | 367.72 | 0.68% | 1,277,801 |
| Jul 2, 2026 | 408.00 | 408.92 | 355.08 | 365.56 | 365.22 | -11.07% | 2,168,108 |
| Jul 1, 2026 | 424.61 | 428.97 | 406.68 | 411.05 | 410.67 | -7.59% | 1,536,042 |
| Jun 30, 2026 | 425.78 | 447.62 | 418.48 | 444.80 | 444.39 | 6.92% | 2,230,535 |