MKS Inc. (MKSI)
NASDAQ: MKSI · Real-Time Price · USD
244.46
-0.22 (-0.09%)
At close: Feb 27, 2026, 4:00 PM EST
244.00
-0.46 (-0.19%)
After-hours: Feb 27, 2026, 7:58 PM EST
MKS Inc. Stock Price History
Historical Data
| Date | Open | High | Low | Close | Adj. Close | Change | Volume |
|---|---|---|---|---|---|---|---|
| Feb 27, 2026 | 239.00 | 245.00 | 237.91 | 244.46 | 244.46 | -0.09% | 1,851,495 |
| Feb 26, 2026 | 255.01 | 256.77 | 238.88 | 244.68 | 244.68 | -4.39% | 2,127,181 |
| Feb 25, 2026 | 256.68 | 258.86 | 252.33 | 255.91 | 255.91 | 1.79% | 1,093,547 |
| Feb 24, 2026 | 255.00 | 258.00 | 249.06 | 251.41 | 251.41 | -0.91% | 1,347,511 |
| Feb 23, 2026 | 258.98 | 260.68 | 248.62 | 253.71 | 253.71 | -2.14% | 893,185 |
| Feb 20, 2026 | 247.55 | 263.36 | 247.00 | 259.27 | 259.02 | 4.09% | 1,950,303 |
| Feb 19, 2026 | 251.86 | 254.76 | 245.15 | 249.08 | 248.84 | -0.51% | 1,447,620 |
| Feb 18, 2026 | 243.38 | 261.00 | 242.20 | 250.36 | 250.12 | -4.78% | 3,024,164 |
| Feb 17, 2026 | 257.68 | 269.91 | 253.20 | 262.94 | 262.69 | 0.84% | 3,505,418 |
| Feb 13, 2026 | 249.26 | 263.90 | 248.56 | 260.74 | 260.49 | 4.54% | 1,663,240 |
| Feb 12, 2026 | 261.01 | 264.45 | 247.50 | 249.42 | 249.18 | -3.72% | 1,343,029 |
| Feb 11, 2026 | 257.90 | 266.08 | 252.39 | 259.05 | 258.80 | 2.59% | 2,237,726 |
| Feb 10, 2026 | 258.35 | 259.70 | 246.10 | 252.52 | 252.28 | 0.77% | 1,641,155 |
| Feb 9, 2026 | 241.71 | 251.99 | 239.36 | 250.60 | 250.36 | 3.14% | 1,336,270 |
| Feb 6, 2026 | 231.91 | 244.06 | 231.34 | 242.96 | 242.73 | 7.11% | 1,510,410 |
| Feb 5, 2026 | 216.77 | 230.36 | 213.49 | 226.83 | 226.61 | 3.10% | 1,785,186 |
| Feb 4, 2026 | 232.26 | 237.93 | 212.91 | 220.00 | 219.79 | -4.17% | 2,359,265 |
| Feb 3, 2026 | 239.76 | 241.18 | 225.82 | 229.58 | 229.36 | -1.71% | 1,941,857 |
| Feb 2, 2026 | 231.71 | 242.18 | 228.00 | 233.57 | 233.34 | -0.78% | 3,561,832 |
| Jan 30, 2026 | 238.95 | 245.96 | 233.09 | 235.41 | 235.18 | -3.47% | 1,518,398 |
| Jan 29, 2026 | 238.64 | 246.35 | 235.86 | 243.88 | 243.64 | 3.32% | 2,639,034 |
| Jan 28, 2026 | 233.62 | 239.39 | 231.34 | 236.05 | 235.82 | 2.81% | 2,885,329 |
| Jan 27, 2026 | 221.16 | 232.81 | 220.50 | 229.60 | 229.38 | 4.98% | 2,247,165 |
| Jan 26, 2026 | 217.73 | 220.49 | 215.17 | 218.70 | 218.49 | 0.76% | 1,048,877 |
| Jan 23, 2026 | 223.00 | 223.00 | 214.08 | 217.06 | 216.85 | -2.66% | 1,317,822 |
| Jan 22, 2026 | 230.33 | 233.11 | 216.31 | 223.00 | 222.78 | 1.03% | 1,885,228 |
| Jan 21, 2026 | 215.96 | 221.07 | 210.91 | 220.73 | 220.52 | 4.78% | 1,957,896 |
| Jan 20, 2026 | 200.44 | 212.59 | 200.00 | 210.66 | 210.46 | 3.27% | 1,799,516 |
| Jan 16, 2026 | 209.37 | 210.42 | 200.14 | 203.99 | 203.79 | -0.62% | 1,611,991 |
| Jan 15, 2026 | 205.00 | 211.08 | 202.32 | 205.26 | 205.06 | 7.86% | 2,046,466 |
| Jan 14, 2026 | 190.86 | 192.82 | 186.58 | 190.30 | 190.12 | -1.54% | 845,013 |
| Jan 13, 2026 | 187.85 | 193.39 | 185.00 | 193.28 | 193.09 | 3.96% | 1,134,467 |
| Jan 12, 2026 | 183.40 | 188.71 | 183.40 | 185.92 | 185.74 | -0.09% | 610,021 |
| Jan 9, 2026 | 180.68 | 186.71 | 180.52 | 186.08 | 185.90 | 3.97% | 640,453 |
| Jan 8, 2026 | 181.00 | 181.00 | 174.09 | 178.98 | 178.81 | -2.31% | 532,084 |
| Jan 7, 2026 | 180.31 | 183.33 | 179.57 | 183.22 | 183.04 | -0.15% | 646,769 |
| Jan 6, 2026 | 177.34 | 185.09 | 177.34 | 183.50 | 183.32 | 4.15% | 1,045,977 |
| Jan 5, 2026 | 172.05 | 176.37 | 170.76 | 176.19 | 176.02 | 4.65% | 1,062,541 |
| Jan 2, 2026 | 164.54 | 169.54 | 164.54 | 168.36 | 168.20 | 5.36% | 881,590 |
| Dec 31, 2025 | 162.11 | 162.43 | 159.56 | 159.80 | 159.65 | -1.25% | 536,136 |
| Dec 30, 2025 | 163.15 | 163.84 | 161.60 | 161.82 | 161.66 | -0.61% | 417,294 |
| Dec 29, 2025 | 162.04 | 163.70 | 160.74 | 162.81 | 162.65 | -0.84% | 332,856 |
| Dec 26, 2025 | 164.45 | 164.87 | 162.68 | 164.19 | 164.03 | 0.48% | 285,211 |
| Dec 24, 2025 | 163.06 | 164.40 | 161.13 | 163.40 | 163.24 | 0.29% | 197,067 |
| Dec 23, 2025 | 160.30 | 164.03 | 160.00 | 162.92 | 162.76 | 0.57% | 850,574 |
| Dec 22, 2025 | 162.49 | 163.50 | 160.02 | 161.99 | 161.83 | 1.52% | 697,586 |
| Dec 19, 2025 | 157.61 | 161.08 | 157.61 | 159.56 | 159.41 | 1.62% | 1,210,448 |
| Dec 18, 2025 | 155.36 | 158.28 | 153.55 | 157.01 | 156.86 | 5.59% | 1,291,173 |
| Dec 17, 2025 | 157.67 | 158.25 | 146.90 | 148.70 | 148.56 | -4.83% | 1,313,531 |
| Dec 16, 2025 | 159.62 | 160.78 | 154.19 | 156.25 | 156.10 | -1.92% | 859,828 |
| Dec 15, 2025 | 159.26 | 160.55 | 156.93 | 159.31 | 159.16 | 2.27% | 1,005,642 |
| Dec 12, 2025 | 164.37 | 165.89 | 153.12 | 155.77 | 155.62 | -6.61% | 1,442,018 |
| Dec 11, 2025 | 166.49 | 168.49 | 163.00 | 166.80 | 166.64 | -0.64% | 716,838 |
| Dec 10, 2025 | 165.05 | 170.37 | 164.83 | 167.88 | 167.72 | 1.63% | 929,236 |
| Dec 9, 2025 | 164.15 | 166.95 | 162.65 | 165.19 | 165.03 | 0.48% | 947,039 |
| Dec 8, 2025 | 164.82 | 167.27 | 162.78 | 164.40 | 164.24 | 0.90% | 669,008 |
| Dec 5, 2025 | 165.00 | 165.95 | 162.15 | 162.94 | 162.78 | -0.25% | 809,059 |
| Dec 4, 2025 | 161.44 | 164.06 | 160.56 | 163.35 | 163.19 | -0.03% | 843,636 |
| Dec 3, 2025 | 161.25 | 164.79 | 158.88 | 163.40 | 163.24 | 1.51% | 877,775 |
| Dec 2, 2025 | 158.81 | 162.85 | 156.87 | 160.97 | 160.81 | 3.23% | 1,005,876 |
| Dec 1, 2025 | 155.96 | 158.70 | 154.00 | 155.94 | 155.79 | -0.29% | 1,000,977 |
| Nov 28, 2025 | 153.11 | 156.49 | 152.00 | 156.39 | 156.24 | 2.87% | 304,194 |
| Nov 26, 2025 | 150.76 | 154.36 | 148.64 | 152.02 | 151.87 | 2.03% | 523,767 |
| Nov 25, 2025 | 149.12 | 150.39 | 145.03 | 149.00 | 148.86 | -0.63% | 874,479 |
| Nov 24, 2025 | 144.00 | 150.76 | 144.00 | 149.95 | 149.81 | 4.13% | 715,366 |
| Nov 21, 2025 | 138.24 | 144.45 | 134.74 | 144.00 | 143.64 | 3.98% | 823,197 |
| Nov 20, 2025 | 149.47 | 149.47 | 137.95 | 138.49 | 138.15 | -3.73% | 1,185,066 |
| Nov 19, 2025 | 142.22 | 147.29 | 141.00 | 143.86 | 143.50 | 2.48% | 902,870 |
| Nov 18, 2025 | 139.29 | 144.62 | 137.03 | 140.38 | 140.03 | -0.94% | 821,806 |
| Nov 17, 2025 | 141.16 | 145.17 | 138.74 | 141.71 | 141.36 | -0.72% | 845,373 |
| Nov 14, 2025 | 138.76 | 146.21 | 138.36 | 142.74 | 142.38 | -0.95% | 830,440 |
| Nov 13, 2025 | 151.84 | 152.50 | 140.99 | 144.11 | 143.75 | -5.91% | 1,244,843 |
| Nov 12, 2025 | 156.00 | 157.04 | 151.47 | 153.17 | 152.79 | 0.35% | 842,575 |
| Nov 11, 2025 | 158.03 | 158.03 | 152.00 | 152.63 | 152.25 | -3.95% | 855,960 |
| Nov 10, 2025 | 158.50 | 160.18 | 154.74 | 158.90 | 158.50 | 2.65% | 1,248,695 |
| Nov 7, 2025 | 152.80 | 155.79 | 145.27 | 154.80 | 154.41 | -0.29% | 1,522,321 |
| Nov 6, 2025 | 147.23 | 157.23 | 146.53 | 155.25 | 154.86 | 10.96% | 2,012,042 |
| Nov 5, 2025 | 139.56 | 144.31 | 138.17 | 139.92 | 139.57 | 1.98% | 1,621,643 |
| Nov 4, 2025 | 139.73 | 142.11 | 136.95 | 137.20 | 136.86 | -5.69% | 1,165,671 |
| Nov 3, 2025 | 143.93 | 146.81 | 142.20 | 145.47 | 145.11 | 1.22% | 951,758 |
| Oct 31, 2025 | 141.00 | 144.80 | 140.00 | 143.71 | 143.35 | 3.16% | 994,606 |
| Oct 30, 2025 | 141.39 | 142.73 | 138.55 | 139.31 | 138.96 | -1.48% | 917,466 |
| Oct 29, 2025 | 144.00 | 146.00 | 139.86 | 141.40 | 141.05 | 0.65% | 1,658,601 |
| Oct 28, 2025 | 143.54 | 143.66 | 140.26 | 140.48 | 140.13 | -3.12% | 769,285 |
| Oct 27, 2025 | 146.16 | 147.31 | 144.95 | 145.01 | 144.65 | 1.45% | 846,342 |
| Oct 24, 2025 | 143.00 | 146.84 | 142.00 | 142.94 | 142.58 | 1.63% | 923,756 |
| Oct 23, 2025 | 132.40 | 142.34 | 132.28 | 140.65 | 140.30 | 4.63% | 751,229 |
| Oct 22, 2025 | 138.68 | 141.06 | 130.72 | 134.42 | 134.09 | -4.48% | 1,079,953 |
| Oct 21, 2025 | 140.49 | 141.80 | 139.52 | 140.73 | 140.38 | -0.60% | 628,282 |
| Oct 20, 2025 | 137.87 | 142.33 | 137.87 | 141.58 | 141.23 | 3.71% | 511,384 |
| Oct 17, 2025 | 136.16 | 137.72 | 134.61 | 136.52 | 136.18 | -0.89% | 660,412 |
| Oct 16, 2025 | 138.05 | 139.10 | 135.19 | 137.75 | 137.41 | 0.97% | 962,505 |
| Oct 15, 2025 | 136.21 | 137.50 | 133.86 | 136.42 | 136.08 | 2.82% | 1,234,709 |
| Oct 14, 2025 | 127.83 | 135.48 | 126.92 | 132.68 | 132.35 | -0.26% | 668,113 |
| Oct 13, 2025 | 129.45 | 133.77 | 127.77 | 133.03 | 132.70 | 9.71% | 1,031,717 |
| Oct 10, 2025 | 134.93 | 135.50 | 120.91 | 121.26 | 120.96 | -9.68% | 1,546,869 |
| Oct 9, 2025 | 133.33 | 134.71 | 130.56 | 134.26 | 133.93 | 0.97% | 820,010 |
| Oct 8, 2025 | 129.84 | 134.23 | 128.38 | 132.97 | 132.64 | 3.21% | 1,363,731 |
| Oct 7, 2025 | 140.56 | 140.56 | 128.71 | 128.84 | 128.52 | -7.62% | 1,252,155 |
| Oct 6, 2025 | 140.63 | 142.20 | 138.40 | 139.47 | 139.12 | 1.17% | 1,301,400 |