MKS Inc. (MKSI)
NASDAQ: MKSI · Real-Time Price · USD
214.24
-1.17 (-0.54%)
Oct 20, 2026, 10:27 AM EDT - Market open
MKS Inc. Stock Price History
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Oct 20, 2026 | 210.57 | 213.59 | 205.62 | 214.24 | 214.24 | -0.54% | 261,734 |
| Oct 19, 2026 | 221.51 | 223.49 | 215.09 | 215.41 | 215.41 | 0.27% | 1,349,137 |
| Oct 16, 2026 | 224.40 | 225.79 | 213.95 | 214.83 | 214.83 | -5.99% | 1,600,267 |
| Oct 15, 2026 | 224.32 | 230.57 | 212.35 | 228.52 | 228.52 | -2.55% | 2,565,333 |
| Oct 14, 2026 | 241.02 | 244.54 | 232.20 | 234.50 | 234.50 | -5.28% | 1,682,507 |
| Oct 13, 2026 | 242.35 | 249.52 | 238.14 | 247.56 | 247.56 | -0.94% | 1,685,059 |
| Oct 12, 2026 | 261.18 | 261.18 | 249.81 | 249.91 | 249.91 | -5.52% | 1,364,436 |
| Oct 9, 2026 | 266.09 | 267.96 | 256.65 | 264.50 | 264.50 | 1.58% | 636,151 |
| Oct 8, 2026 | 266.69 | 274.07 | 257.60 | 260.38 | 260.38 | -4.68% | 1,275,150 |
| Oct 7, 2026 | 271.72 | 274.99 | 269.11 | 273.15 | 273.15 | -2.94% | 1,014,022 |
| Oct 6, 2026 | 285.40 | 286.38 | 276.56 | 281.41 | 281.41 | 0.32% | 1,055,772 |
| Oct 5, 2026 | 279.79 | 284.21 | 273.60 | 280.50 | 280.50 | 0.48% | 1,125,157 |
| Oct 2, 2026 | 284.10 | 284.63 | 278.91 | 279.15 | 279.15 | 2.92% | 1,349,405 |
| Oct 1, 2026 | 265.57 | 275.48 | 262.77 | 271.24 | 271.24 | 2.22% | 1,336,907 |
| Sep 30, 2026 | 267.82 | 268.00 | 260.23 | 265.36 | 265.36 | -0.25% | 751,302 |
| Sep 29, 2026 | 264.18 | 266.28 | 261.36 | 266.02 | 266.02 | 2.96% | 807,535 |
| Sep 28, 2026 | 259.56 | 259.69 | 251.19 | 258.38 | 258.38 | -0.94% | 1,095,215 |
| Sep 25, 2026 | 261.01 | 262.66 | 257.90 | 260.82 | 260.82 | 1.10% | 683,394 |
| Sep 24, 2026 | 256.64 | 259.82 | 254.21 | 257.98 | 257.98 | -1.80% | 695,452 |
| Sep 23, 2026 | 260.37 | 263.78 | 253.41 | 262.72 | 262.72 | 0.90% | 1,534,322 |
| Sep 22, 2026 | 253.50 | 260.66 | 252.60 | 260.37 | 260.37 | 1.34% | 2,709,586 |
| Sep 21, 2026 | 258.20 | 259.00 | 251.79 | 256.92 | 256.92 | 1.92% | 948,161 |
| Sep 18, 2026 | 244.03 | 252.38 | 243.00 | 252.08 | 252.08 | 4.93% | 2,231,364 |
| Sep 17, 2026 | 245.50 | 250.84 | 238.45 | 240.23 | 240.23 | 2.10% | 1,026,777 |
| Sep 16, 2026 | 237.80 | 240.48 | 232.03 | 235.28 | 235.28 | 1.63% | 960,065 |
| Sep 15, 2026 | 242.60 | 242.60 | 228.46 | 231.50 | 231.50 | -3.25% | 1,632,355 |
| Sep 14, 2026 | 248.32 | 250.49 | 238.29 | 239.27 | 239.27 | -10.49% | 1,175,742 |
| Sep 11, 2026 | 267.86 | 270.29 | 264.74 | 267.31 | 267.31 | 2.09% | 1,247,889 |
| Sep 10, 2026 | 260.83 | 265.60 | 258.79 | 261.84 | 261.84 | -2.32% | 961,346 |
| Sep 9, 2026 | 262.34 | 269.78 | 262.34 | 268.05 | 268.05 | 0.96% | 1,201,869 |
| Sep 8, 2026 | 264.06 | 270.17 | 260.35 | 265.50 | 265.50 | 1.99% | 1,752,638 |
| Sep 4, 2026 | 255.14 | 260.94 | 253.97 | 260.31 | 260.31 | 4.27% | 1,689,425 |
| 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 |