MKS Inc. (MKSI)
NASDAQ: MKSI · Real-Time Price · USD
242.96
+16.13 (7.11%)
At close: Feb 6, 2026, 4:00 PM EST
243.72
+0.76 (0.31%)
After-hours: Feb 6, 2026, 7:25 PM EST
MKS Inc. Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Feb 6, 2026 | 231.91 | 244.06 | 231.34 | 243.02 | 243.02 | 7.14% | 1,508,362 |
| Feb 5, 2026 | 216.77 | 230.36 | 213.49 | 226.83 | 226.83 | 3.10% | 1,785,037 |
| Feb 4, 2026 | 232.26 | 237.93 | 212.91 | 220.00 | 220.00 | -4.17% | 2,358,899 |
| Feb 3, 2026 | 239.76 | 241.18 | 225.82 | 229.58 | 229.58 | -1.71% | 1,941,857 |
| Feb 2, 2026 | 231.71 | 242.18 | 228.00 | 233.57 | 233.57 | -0.78% | 3,561,832 |
| Jan 30, 2026 | 238.95 | 245.96 | 233.09 | 235.41 | 235.41 | -3.47% | 1,518,398 |
| Jan 29, 2026 | 238.64 | 246.35 | 235.86 | 243.88 | 243.88 | 3.32% | 2,639,034 |
| Jan 28, 2026 | 233.62 | 239.39 | 231.34 | 236.05 | 236.05 | 2.81% | 2,885,329 |
| Jan 27, 2026 | 221.16 | 232.81 | 220.50 | 229.60 | 229.60 | 4.98% | 2,247,165 |
| Jan 26, 2026 | 217.73 | 220.49 | 215.17 | 218.70 | 218.70 | 0.76% | 1,048,877 |
| Jan 23, 2026 | 223.00 | 223.00 | 214.08 | 217.06 | 217.06 | -2.66% | 1,317,822 |
| Jan 22, 2026 | 230.33 | 233.11 | 216.31 | 223.00 | 223.00 | 1.03% | 1,885,228 |
| Jan 21, 2026 | 215.96 | 221.07 | 210.91 | 220.73 | 220.73 | 4.78% | 1,957,896 |
| Jan 20, 2026 | 200.44 | 212.59 | 200.00 | 210.66 | 210.66 | 3.27% | 1,799,516 |
| Jan 16, 2026 | 209.37 | 210.42 | 200.14 | 203.99 | 203.99 | -0.62% | 1,611,991 |
| Jan 15, 2026 | 205.00 | 211.08 | 202.32 | 205.26 | 205.26 | 7.86% | 2,046,466 |
| Jan 14, 2026 | 190.86 | 192.82 | 186.58 | 190.30 | 190.30 | -1.54% | 845,013 |
| Jan 13, 2026 | 187.85 | 193.39 | 185.00 | 193.28 | 193.28 | 3.96% | 1,134,467 |
| Jan 12, 2026 | 183.40 | 188.71 | 183.40 | 185.92 | 185.92 | -0.09% | 610,021 |
| Jan 9, 2026 | 180.68 | 186.71 | 180.52 | 186.08 | 186.08 | 3.97% | 640,453 |
| Jan 8, 2026 | 181.00 | 181.00 | 174.09 | 178.98 | 178.98 | -2.31% | 532,084 |
| Jan 7, 2026 | 180.31 | 183.33 | 179.57 | 183.22 | 183.22 | -0.15% | 646,769 |
| Jan 6, 2026 | 177.34 | 185.09 | 177.34 | 183.50 | 183.50 | 4.15% | 1,045,977 |
| Jan 5, 2026 | 172.05 | 176.37 | 170.76 | 176.19 | 176.19 | 4.65% | 1,062,541 |
| Jan 2, 2026 | 164.54 | 169.54 | 164.54 | 168.36 | 168.36 | 5.36% | 881,590 |
| Dec 31, 2025 | 162.11 | 162.43 | 159.56 | 159.80 | 159.80 | -1.25% | 536,136 |
| Dec 30, 2025 | 163.15 | 163.84 | 161.60 | 161.82 | 161.82 | -0.61% | 417,294 |
| Dec 29, 2025 | 162.04 | 163.70 | 160.74 | 162.81 | 162.81 | -0.84% | 332,856 |
| Dec 26, 2025 | 164.45 | 164.87 | 162.68 | 164.19 | 164.19 | 0.48% | 285,211 |
| Dec 24, 2025 | 163.06 | 164.40 | 161.13 | 163.40 | 163.40 | 0.29% | 197,067 |
| Dec 23, 2025 | 160.30 | 164.03 | 160.00 | 162.92 | 162.92 | 0.57% | 850,574 |
| Dec 22, 2025 | 162.49 | 163.50 | 160.02 | 161.99 | 161.99 | 1.52% | 697,586 |
| Dec 19, 2025 | 157.61 | 161.08 | 157.61 | 159.56 | 159.56 | 1.62% | 1,210,448 |
| Dec 18, 2025 | 155.36 | 158.28 | 153.55 | 157.01 | 157.01 | 5.59% | 1,291,173 |
| Dec 17, 2025 | 157.67 | 158.25 | 146.90 | 148.70 | 148.70 | -4.83% | 1,313,531 |
| Dec 16, 2025 | 159.62 | 160.78 | 154.19 | 156.25 | 156.25 | -1.92% | 859,828 |
| Dec 15, 2025 | 159.26 | 160.55 | 156.93 | 159.31 | 159.31 | 2.27% | 1,005,642 |
| Dec 12, 2025 | 164.37 | 165.89 | 153.12 | 155.77 | 155.77 | -6.61% | 1,442,018 |
| Dec 11, 2025 | 166.49 | 168.49 | 163.00 | 166.80 | 166.80 | -0.64% | 716,838 |
| Dec 10, 2025 | 165.05 | 170.37 | 164.83 | 167.88 | 167.88 | 1.63% | 929,236 |
| Dec 9, 2025 | 164.15 | 166.95 | 162.65 | 165.19 | 165.19 | 0.48% | 947,039 |
| Dec 8, 2025 | 164.82 | 167.27 | 162.78 | 164.40 | 164.40 | 0.90% | 669,008 |
| Dec 5, 2025 | 165.00 | 165.95 | 162.15 | 162.94 | 162.94 | -0.25% | 809,059 |
| Dec 4, 2025 | 161.44 | 164.06 | 160.56 | 163.35 | 163.35 | -0.03% | 843,636 |
| Dec 3, 2025 | 161.25 | 164.79 | 158.88 | 163.40 | 163.40 | 1.51% | 877,775 |
| Dec 2, 2025 | 158.81 | 162.85 | 156.87 | 160.97 | 160.97 | 3.23% | 1,005,876 |
| Dec 1, 2025 | 155.96 | 158.70 | 154.00 | 155.94 | 155.94 | -0.29% | 1,000,977 |
| Nov 28, 2025 | 153.11 | 156.49 | 152.00 | 156.39 | 156.39 | 2.87% | 304,194 |
| Nov 26, 2025 | 150.76 | 154.36 | 148.64 | 152.02 | 152.02 | 2.03% | 523,767 |
| Nov 25, 2025 | 149.12 | 150.39 | 145.03 | 149.00 | 149.00 | -0.63% | 874,479 |